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Installer and user reference guide VRV IV system air

1. 8 12 HP 4 15x22 5 H EM p le wo hal e k R e EDR O 4 Lh Ti TH 71 76 76 137 97 N 07 765 _ 328 373 mm 930 14 20 HP 1076 x n 4 15x22 5 o FEO Qo I 9 NSS C 76 7 97 107 272 765 328 373 1240 Installer and user reference guide DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B 54 VRV IV system air conditioner 4P370475 1 2014 02 12 Technical data 12 3 Service space Outdoor unit Make sure the space around the unit is adequate for servicing and the minimum space for air inlet and air outlet is available refer to the figure below and choose one of the possibilities
2. Layout A B C D A B Possibility 1 Possibility 2 1 a210 mm a250 mm a2200 mm b2300 mm b2100 mm b2300 mm gt 10 mm gt 50 mm d2500 mm d2500 mm 2 a210 mm a250 mm a2200 mm b2300 mm b2100 mm b2300 mm gt 10 mm gt 50 mm d2500 mm d2500 mm e220 mm e2100 mm e2400 mm 3 a210 mm a250 mm b2300 mm b2100 mm c210 mm gt 50 mm d2500 mm d2500 mm e220 mm e2100 mm f2600 mm f2500 mm 4 a210 mm a250 mm b2300 mm b2100 mm c210 mm gt 50 mm d2500 mm d2500 mm e220 mm e2100 mm 5 a210 mm a250 mm b2500 mm b2500 mm c210 mm c250 mm d2500 mm d2500 mm e220 mm e2100 mm f2900 mm f2600 mm s g F h gt 0 2 h S h 0 d2d 22 ite 2 mm ABCD Sides along the installation site with
3. d RIT w jo i cta 1 MIF 0 R6T 9 RD 2 h 1 u Y jp i ii 5 S1NPL S1NPH 0 R3T HPS k 1 R21T0 f I R8 s H Er tau ron Compressor M1C Compressor M2C Heat exchanger Fan Fan motor M1F M2F Accumulator Expansion valve main Y1E Expansion valve subcool heat exchanger Y2E Expansion valve storage vessel Y3E Subcool heat exchanger Oil separator Solenoid valve oil accumulator Y2S Solenoid valve oil1 Y3S Solenoid valve oil2 Y4S 4 way valve main Y1S 4 way valve sub Y5S Electrical component box Service port refrigerant charge Stop valve liquid Stop valve gas Stop valve equalising gas Heat accumulation element Service port INFORMATION Depending on the model type some components in the main component list may not be existing in the unit lt 3 RYYQ RYMQ R
4. RT w E RS R4 1 i J E 5 414 o C RSTO 0 R6T RITC h e 1 1 1 SINPL 75 oR3T 5 k S1PH RIT 0 a Xm RET 2 NV oup z 19 rHN Compressor M1C Compressor M2C Heat exchanger Fan Fan motor M1F M2F Accumulator Expansion valve main Y1E Expansion valve storage vessel Y3E Subcool heat exchanger Oil separator Solenoid valve oil accumulator Y2S Solenoid valve oil1 Y3S Solenoid valve oil2 Y4S 4 way valve main Y1S 4 way valve sub Y5S Electrical component box Service port refrigerant charge Stop valve liquid Stop valve gas Stop valve equalising gas Heat accumulation element Service port lt 3 Expansion valve subcool heat exchanger 2 i INFORMATION Depending on the model type some components in the main component list may not be existing in the unit RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 Installer and user reference guide 67 12 Technical data Components and piping diagram R
5. ile aia X X X T Eu T T Wl o i Wi 2200 mm 4 L 1 0 v J E F LB H i H 1 i To indoor unit b Oil collects to the outmost outdoor unit when the system 5 4 Preparing electrical wiring 5 4 1 About electrical compliance This equipment complies with EN IEC 61000 3 11 provided that the system impedance Zs is less than or equal to Z at the interface point between the user s supply and the public system 61000 3 11 European International Technical Standard setting the limits for voltage changes voltage fluctuations and flicker in public low voltage supply systems for equipment with rated current 75 A It is the responsibility of the installer or user of the equipment to ensure by consultation with the distribution network operator if necessary that the equipment is connected only to
6. 1 w E qe RSTO 0 ROT RC 5 h T de S1NPL S1NPH 0 R3T i p 1 HPS k k HPS S1PH 52 R21T 0 0R22T f s 2 R8 sH A n tH S 2 r HN __ Sa E __ _ l Compressor M1C Compressor M2C Heat exchanger Fan Fan motor M1F M2F Accumulator Expansion valve main Y1E Expansion valve subcool heat exchanger Y2E Expansion valve storage vessel Y3E Subcool heat exchanger Oil separator Solenoid valve oil accumulator Y2S Solenoid valve oil1 Y3S Solenoid valve oil2 Y4S 4 valve main 15 4 way valve sub Y5S Electrical component box Service port refrigerant charge Stop valve liquid Stop valve gas Stop valve equalising gas Heat accumulation element Service port lt 3 1 INFORMATION Depending on the model type some components in the main component list may not be existing in the unit Installer and user reference guide 66 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 12 Technical data Components and piping diagram RXYQ8 12
7. 6 4 11 To remove the pinched pipes WARNING Any gas or oil remaining inside the stop valve may blow off the pinched piping Failure to observe the instructions in procedure below properly may result in property damage or personal injury which may be serious depending on the circumstances Use the following procedure to remove the pinched piping 1 Remove the valve cover and make sure that the stop valves are fully closed Service port and service port cover Stop valve Field piping connection Stop valve cover oo o 2 Connect the vacuuming recovery unit through a manifold to the service port of all stop valves port cover securely For the tightening torque refer to the table a Pressure reducing valve below b Nitrogen c Weighing scales Check for refrigerant leaks after tightening the service port cover d Refrigerant R410A tank siphon system e Vacuum pump 2 f Liquid line stop valve Tightening torques g Gasline stop valve A Valve A Stop valve Tightening torque Nem turn clockwise to close B Valve B size mm Shaft 3 Recover gas and oil from the pinched piping by using a Valve body Hexagonal Cap valve Service recovery unit wrench lid port CAUTION 09 5 5 4 6 6 4 mm 13 5 16 5 11 5 13 9 Do not vent gases into the atmosphere 912 7 8 1 9 9 18 0 22 0 15 9 13 5 16 5 6 mm 23 0 27 0 4 When all gas and oil is re
8. 86 N x 7 i Indicates a situation that could result in burning because of 18 2 Maintenance before a long stop period 86 drei st er esl teuren 18 3 Te Pe saa or rco rcl sebo p 86 RYYQ RYMQ RXYQ8 20T7Y1B DAIKIN Installer and user reference guide VRV IV system air conditioner 4P370475 1 2014 02 3 1 General safety precautions NOTICE Works executed on the outdoor unit are best done under dry weather conditions to avoid water ingress WARNING Indicates a situation that could result in death or serious injury A CAUTION Indicates a situation that could result in minor or moderate injury NOTICE Indicates a situation that could result in equipment or property damage INFORMATION Indicates useful tips or additional information 1 2 For the installer 1 2 1 General If you are not sure how to install or operate the unit contact your dealer NOTICE Improper installation or attachment of equipment or accessories could result in electric shock short circuit leaks fire or other damage to the equipment Only use accessories optional equipment and spare parts made or approved by Daikin WARNING Make sure installation testing and applied materials comply with applicable legislation on top of the instructions described in the Daikin documentation gt CAUTION We
9. 75 Installer and user reference guide DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 12 Technical data ATIP PRINTED CIRCUIT BOARD MAIN R865 R86 7 RESISTOR AGP PRINTED CIRCUIT BOARD NOISE FILTER RIT THERMISTOR AIR ATP PRINTED CIRCUIT BOARD INV PRINTED CIRCUIT BOARD FAN R21T R22T THERMISTOR 10 M2C DISCHARGE THERMISTOR ACCUMULATOR PUSH BUTTON SWITCH MODE SET RETURN THERMISTOR HEAT EXC LIQ PIPE THERMISTOR SUBCOOL L1Q PIPE CAPACITOR A3P CAPACITOR A6P R7T THERMISTOR HEAT EXC GAS PIPE THERMISTOR HEAT EXC DEICER DIP SWITCH R8T THERMISTOR M2C BODY CRANKCASE HEATER S1NPH PRESSURE SENSOR HIGH FUSE T 3 15A 250V ATP SINPL PRESSURE_SENSOR LOW FIELD FUSE S1PH S2PHPRESSURE SWITCH DI SCH 1 75 03 7 5 0 DISPLAY ATP ATP F400U FUSE A2P VIR POWER MODULE VIR POWER MODULE A4P A7P V2R POWER MODULE AGP SERVICE MONITOR GREEN X1A 4A CONNECTOR MIF M2F AGNETIC CONTACTOR A3P AGP AGNETIC RELAY MAGNETIC RELAY A2P AGP XGA CONNECTOR CHECK THE RESIDUAL CHARGE TERMINAL BLOCK POWER SUPPLY TERMINAL BLOCK CONTROL ATP MAGNETIC RELAY YAS ATP ELECTRONIC EXPANSION VALVE MAIN MAGNETIC RELAY 2
10. 8 6 8 2 Field Wiring OVeIViBW unire racer reve 4 2 Identification label Outdoor epe 8 6 8 3 About the electrical 4 3 About the outdoor unit 8 6 8 4 Guidelines when knocking out knockout holes 4 4 System layout T 9 6 8 5 To route and fix the transmission wiring 4 5 Combining units and options 9 6 8 6 To connect the transmission wiring 2 4 5 1 About combining units and options 9 6 8 7 To finish the transmission wiring 4 5 2 Possible combinations of indoor unit 9 6 8 8 To route and fix the power supply 4 5 3 Possible combinations of outdoor units 9 6 8 9 To connect the power supply 551552393513 4 5 4 Possible options for the outdoor 9 7 Configuration 37 5 Preparation 10 Overview Configuration 27 51 Ovetyigw 2 22 10 T2 Making field settings 37 5 2 Preparing INSTA 10 7 2 1 About making field settings 37 5 2 1 Installation site requirements of the outdoor unit 10 422 Field setting components 38 5 2 2 Additional installation site requirements of the 7 25 access the field setting components 38 outdoor unit in cold climates 11 24 Toanccessanode ar 2 aieo uen cinese 38 5 2 3 Securing safety against refrigerant leaks 11 7 2 5 To use mode 1 38
11. Example Checking the content of parameter 1 10 to know how many indoor units are connected to the system Installer and user reference guide 38 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 7 Configuration A B C in this case defined as 1 10 value we want to know monitor 1 Make sure the 7 segment display indication is as during normal operation default situation when shipped from factory 2 Push BS1 1 time Result Mode 1 is accessed 3 Push 52 10 times Result Mode 1 setting 10 is addressed 4 Push BS3 1 time the value which is returned depending on the actual field situation is the amount of indoor units which are connected to the system Result Mode 1 setting 10 is addressed and selected return value is monitored information 5 To leave the monitoring function push BS1 1 time Result You will return to the default situation when shipped from factory 7 2 6 To use mode 2 The master unit should be used to input field settings in mode 2 Mode 2 is used to set field settings of the outdoor unit and system What How Changing and accessing Once mode 2 is selected push BS1 for the setting in mode 2 more than 5 seconds you can select the wanted setting It is done by pushing BS2 Accessing the selected setting s value is done by pushing BS3 1 time Press BS1 To quit and return to the in
12. 19 2 10 Symptom Noise of air conditioners Indoor unit 129 Capacity teble Indoor u US usun 80 outdoor unit 90 19 2 11 Symptom Noise of air conditioners Outdoor unit 90 19 2 12 Symptom Dust comes out of the unit 90 For the user 81 19 2 13 Symptom The units can give off odours 90 19 2 14 Symptom The outdoor unit fan does not spin 90 13 About the system 81 19 2 15 Symptom The display shows 88 90 193 YONG eon icio etii unus 81 19 2 16 Symptom The compressor in the outdoor unit does 14 User interface 81 not stop after heating operation 90 19 2 17 Symptom The inside of an outdoor unit is warm 15 Before operation 82 even when the unit has stopped 90 19 2 18 Symptom Hot air can be felt when the indoor unit is 16 Operation 82 LL Ce 90 L SEES o 82 20 Rel lon 162 O16 Sy SRO u uu nere irc itle ere oer erp ec 82 0 Relocatio 90 16 2 1 About operating The System cose 82 21 Disposal 90 16 2 2 About cooling heating fan only and automatic s aac 82 22 Glossary 91 16 2 3 About the heating 82 16 2 4 To operate the system WITHOUT cool heat changeover remote control switch 83 16 2 5 operate the system WITH cool heat changeover 1 General safety prec
13. Automatic charge janua charge Step 6a Push 1x BS2 BBB Push 52 for more than 5 seconds pressure equalisation Step 6b Activate field setting 2 20 7 1 Unit will start manual refrigerant charging operation Depending on ambient conditions the unit will decide to perform autocharge operation in heating or cooling mode Open valve Charge remaining amount of refrigerant P kg R Q P Continued on next page gt gt Close valve A Push BS3 to stop manual charging Charging is finished Fill in the amount on the additional refrigerant charge label Input the additional refrigerant amount via setting 2 14 Gototestrun RYYQ RYMQ RXYQ8 20T7Y1B DAIKIN VRV IV system air conditioner 4P370475 1 2014 02 Installer and user reference guide 29 6 Installation Continuation of previous page heating charging Cooling charging e startup control startup control EZ 3 waiting for stable heating 3i waiting for stable cooling Eg J is flashing ED 3 is flashing Push BS2 within 5 minutes Open valve A Push BS2 within 5 minutes Open valveA I Display show zc 2 and low pressure value with an interval of 1 second LOT Tw Add additional refrigerant amount P kg Close valve A Push 53 to stop operation Ending code will app
14. RYYQ26 RXYQ26 1532 E E RYYQ28 RXYQ28 1539 gt i RYYQ30 RXYQ30 1488 a RYYQ32 RXYQ32 1848 lt 2 m lt 2 m RYYQ34 RXYQ34 1797 a To indoor unit RYYQ36 RXYQ36 1894 b Piping between outdoor units RYYQ38 RXYQ38 ER 2750 NOTICE RYYQ40 RXYQ40 2052 There are restrictions on the refrigerant pipe connection RYYQ42 RXYQ42 2412 order between outdoor units during installation in case of a RYYQ44 RXYQ44 2463 multiple outdoor unit system Install according to following restrictions The capacities of outdoor units A B and C OGIO REED 2098 must fulfill the following restriction conditions AZB2C RYYQ48 RXYQ48 n 2772 RYYQ50 RXYQ50 2721 B RYYQ52 RXYQ52 2670 RYYQ54 RXYQ54 2619 ab c a To indoor units b Outdoor unit multi connecting piping kit first branch Outdoor unit multi connecting piping kit second branch INFORMATION Multi units are standard combinations Installer and user reference guide 18 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 6 Installation 5 4 2 Safety device requirements The power supply must be protected with the required safety devices i e a main switch a slow blow fuse on each phase and an earth leakage protector in accordance with the applicable legislation For standard combinations Selection and sizing of the wiring should be done in accordance with the applicable legislation based on the inf
15. HERMISTOR HEAT EXC ESI STOR CURRENT SENSOR 4 MAGNETIC RELAY A3P ESISTOR CURRENT SENSOR A3P SOLENO D VA NOISE FILTE WITH SURGE R A2P LVE SUB NOTE 9 ABSORBER MAGNETIC RELAY A3P ESISTOR CURRENT LIMITING MAGNETIC RELAY A2P RESSURE SENSOR HIGID M R R R R MAGNETIC RELAY Y3S ATP RESSURE SENSOR LOW PRESSURE SWITCH DISCH ONNECTOR FOR CONNECTOR OPTIO NAL ACCESSORIES POWER ADAPTER 7 SEGMENT DISPLAY AIP 2D083677 1 MAGNETIC RELAY Y2S ATP S1PH R MAGNETIC RELAY Y5S ATP SEG1 SEG3 R MAGNETIC RELAY ETHC ATP VIR POWER MODULE ASP CONNECTOR COOL HEAT 5 REMOTE SWITCHING ELECTOR 8 CLASS Installer and user reference guide 70 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 12 Technical data 10 12 REY me WIRING DIAGRAM 00 FU COCLWEAT SELEC OPTIONAL ERE 7 E3 TES 1 THIS WIRING DD IM APPLIES ONLY TO THE OUTDOOR UNIT 2 TE FIELD W TERMINAL BLOCK CONNECTOR Nin PROTECTIVE EARTH SREW 3 WHEN USING THE OPTIONAL ADAPTER REFER TO THE INSTALLATION MANUAL OF THE OPTIONAL ADAPTER 4 FOR CONNECTION WIRING TO INDOOR OUTDOOR TRANSMISSION F1 F2 OUTDOOR OUTDOOR TRANSMISSION F1 F2 REFER TO THE INSTALLATION MANUAL 5 HOW TO USE 51
16. Installer and user reference guide 25 6 Installation NOTICE The connections to the indoor units and all indoor units should also be leak and vacuum tested Keep any possible field supplied field piping valves open as well Refer to the indoor unit installation manual for more details Leak test and vacuum drying should be done before the power supply is set to the unit If not see also the flow chart earlier described in this chapter see 6 5 1 About checking the refrigerant piping on page 25 6 5 4 To perform a leak test The leak test must satisfy the specifications of EN 378 2 To check for leaks Vacuum leak test 1 Evacuate the system from the liquid and gas piping to 100 7 kPa 1 007 bar 5 Torr for more than 2 hours 2 Once reached turn off the vacuum pump and check that the pressure does not rise for at least 1 minute 3 Should the pressure rise the system may either contain moisture see vacuum drying below or have leaks To check for leaks Pressure leak test 1 Break the vacuum by pressurising with nitrogen gas to a minimum gauge pressure of 0 2 MPa 2 bar Never set the gauge pressure higher than the maximum operation pressure of the unit i e 4 0 MPa 40 bar 2 Test for leaks by applying a bubble test solution to all piping connections 3 Discharge all nitrogen gas NOTICE Make sure to use a recommended bubble test solution from your wholesaler Do not use soap water which
17. NOTICE Make sure to open all stop valves after pre charging the refrigerant Operating with the stop valves closed will damage the compressor 6 7 10 fix the fluorinated greenhouse gases label NOTICE National implementation of EU regulation on certain fluorinated greenhouse gases may require to provide the appropriate official language on the unit Therefore an additional multilingual fluorinated greenhouse gases label is supplied with the unit Code Cause Solution Unusual low pressure on Close valve A LLI Contains fluorinated greenhouse gases covered by the Kyoto suction line immediately Push BS1 to R410A k9 reset Check following BEEN items before retrying h kg o autocharge procedure TO Check if the gas side IC kg q stop valve is opened J correctly a From the multilingual fluorinated greenhouse gases label off the applicable language and stick it on top of a Check if the valve of the b Factory refrigerant charge see unit name plate refrigerant cylinder is c Additional refrigerant amount charged opened d Total refrigerant charge Check if the air inlet and 2 The filled out label must be adhered on the inside of the product outlet of the indoor unit and in the proximity of the product charging port e g on the are not obstructed inside of the service cover PB Freeze
18. S1NPH short circuit ATP X32A Main code Sub code Cause Solution Master Slave 1 Slave 2 EH H t eg Low pressure malfunction Open stop valves Stop valve closed Check refrigerant amounttrecharge Refrigerant shortage Indoor nit malfunction Check the user 5 display transmission wiring between the outdoor unit and the indoor unit EH p 1 05 05 Electronic expansion valve malfunction Check connection PCB or actuator subcool Y2E A1P X21A LEH 01 0 Electronic expansion valve malfunction Check connection or actuator main Y1E A1P X23A 03 b 05 Electronic expansion valve malfunction Check connection on PCB or actuator storage vessel Y3E A1P X22A H 1 03 5 Discharge temperature too high Open stop valves R211R221 Check refrigerant amount recharge Stop valve closed unit Refrigerant shortage e 4 eg Compressor casing temperature too Open stop valves high RT Check refrigerant amount recharge Stop valve closed unit Refrigerant shortage Fb g Refrigerant overcharge Check refrigerant amount recharge Stop valve closed unit Open stop valves HH 1 e 03 Ambient temperature sensor Check connection on PCB or actuator malfunction R1T A1P X18A 43 ib ee ea Discharge temperature sensor Check connection on PCB or actuator malfunction R21T open circuit ATP X29A 17 ses 29 Disc
19. User interface dedicated depending on indoor unit type h Userinterface wireless dedicated depending on indoor unit type i Cool Heat changeover remote control switch Q 14 User interface A CAUTION Never touch the internal parts of the controller Do not remove the front panel Some parts inside are dangerous to touch and appliance problems may happen For checking and adjusting the internal parts contact your dealer This operation manual will give a non exhaustive overview of the main functions of the system Detailed information on required actions to achieve certain functions can be found in the dedicated installation and operation manual of the indoor unit Refer to the operation manual of the installed user interface RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 81 15 Before operation 15 Before operation WARNING This unit contains electrical and hot parts WARNING Before operating the unit be sure the installation has been carried out correctly by an installer A CAUTION It is not good for your health to expose your body to the air flow for a long time A CAUTION To avoid oxygen deficiency ventilate the room sufficiently if equipment with burner is used together with the air conditioner A CAUTION Do not operate the air conditioner when using a room fumigati
20. mentioned cases and none of the above mentioned malfunctions is H3 Drain system malfunction indoor evident investigate the system according to the following Hh Fan motor malfunction indoor procedures Aq Swing flap motor malfunction indoor Malfunction Measure HH Expansion valve malfunction indoor If the system does not Check if there is no power failure Wait HF Drain malfunction indoor unit operate at all until power is restored If power failure BH Filter dust chamber malfunction indoor occurs during operation the system 7 automatically restarts immediately after AJ Capacity setting malfunction indoor the power supply is recovered Ld Transmission malfunction between main PCB and sub Check if no fuse has blown or breaker indor has worked Change the fuse or reset the LH Heat exchanger thermistor malfunction indoor liquid breaker if necessary t5 Heat exchanger thermistor malfunction indoor gas If the system goes into Check if air inlet or outlet of outdoor or cq Suction air thermistor malfunction indoor fan only operation but indoor unit is not blocked by obstacles Discharge air thermistor malfunction indoor as soon as it goes into Remove any obstacle and make it well heating or cooling ventilated Movement detector or floor temperature sensor i malfunction indoor operation the system Check if the user interface display shows stops An C4 User interface thermistor malfunc
21. Oil separator Solenoid valve oil accumulator Y2S Solenoid valve oil1 Y3S Solenoid valve oil2 45 4 way valve main Y1S 4 way valve sub Y5S Electrical component box Service port refrigerant charge Stop valve liquid Stop valve gas Stop valve equalising gas Heat accumulation element Service port INFORMATION Depending on the model type some components in the main component list may not be existing in the unit lt 3 o Q o C o Installer and user reference guide DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B 56 VRV IV system air conditioner 4P370475 1 2014 02 12 Technical data Components RYYQ14 20 f n k m k lt 5 3 1 2 Heat exchanger Fan Fan motor M1F M2F Accumulator Expansion valve main Y1E Expansion valve subcool heat exchanger Y2E Expansion valve storage vessel Y3E Subcool heat exchanger Oil separator Solenoid valve oil accumulator Y2S Solenoid valve oil1 Y3S Solenoid valve oil2 Y4S 4 way valve main Y1S 4 way valve sub Y5S Electrical component box Service port refrigerant charge Stop valve liquid Stop valve g
22. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D m mmoou Indoor unit set temperature Operation start Operating time Mild Quick Powerful RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 45 7 Configuration 7 3 4 Example Automatic mode during heating E 70 A 2 C F A Virtual load curve default automatic mode peak capacity B Load curve Virtual target value initial condensation temperature value automatic mode D Design temperature E Load factor F Outside air temperature T Condensing temperature Quick Powerful Mild Room temperature evolution Indoor unit set temperature Operation start Operating time Mild Quick Powerful A B D E F 7 4 Using the leak detection function 7 4 1 About automatic leak detection The automatic leak detection function is not by default activated The automatic leak detection function can only start working when both below conditions are fulfilled The additional refrigerant charge was inputted in the system s logic see 2 14 The system test run was executed see 8 Commissioning on page 47 including the detailed refrigerant situation check The leak detection operation can be automated By changing parameter 2 85 to chosen value the interval time or the time till the next automatic
23. 5 3 Prepaiiog refrigerant Pipiena 12 7 2 6 To use mode 2 39 5 94 Refrigerant piping requirements 12 7 27 Mode 1 Monitoring 5 39 5 3 2 select the piping size 13 7 28 62 Field sets asus reete 40 5 33 To select refrigerant branch kits 14 7 2 9 To connect the PC configurator to the outdoor unit 43 5 8 4 About the piping length 15 7 3 Energy saving and optimum 5 3 5 length VRV DX only 15 7 3 1 Available main operation methods 5 316 Piping length VRV DX and Hydrobox 16 782 Available comfort settings 5 3 7 Piping length VRV DX and RA DX 17 7 3 3 Example Automatic mode during cooling 5 5 8 Multiple outdoor units Possible layouts T T34 Example Automatic mode during heating 5 4 Preparing electrical VADO iik na t 18 74 Using the leak detection function 5 4 1 About electrical compliance 18 7 4 1 About automatic leak 5 4 2 Safety device requirements 19 7 4 0 manually perform a leak detection 6 Installation 19 8 Commissioning 6 1 Quer view ste AL OT aeos E 19 8 1 Overview 0 40 6 2 Opening the units 19 8 2 Precautions when commissioning 624 To open the outdoor unit 19 8 3 Checklist
24. Charge 5 9 kg 6 kg 6 3 kg 10 3 kg 10 4 kg 11 7 kg 11 8 kg Refrigerant oil Synthetic ether oil Safety devices High pressure switch Fan driver overload protector Inverter overload protector PCB fuse Installer and user reference guide 78 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 12 Technical data a b Nominal cooling capacities are based on indoor temperature 27 DB 19 WB outdoor temperature 35 DB equivalent refrigerant piping 5 m level difference 0 m Nominal cooling capacities are based on indoor temperature 20 C DB outdoor temperature 7 C DB and 6 C WB equivalent refrigerant piping 5 m level difference 0 m c Actual number of units depends on the indoor unit type VRV DX Hydrobox RA DX and the connection ratio restriction for the system 50 SCRS130 d Nominal at 230 V e Sound values are measured in a semi anechoic room f Sound power level is an absolute value that a sound generates g Sound pressure level is a relative value depending on the distance and acoustic environment For more details refer to sound level drawings in the technical data book Electrical specifications Specification 8 HP 10 HP 12 HP 14 HP 16 HP 18 HP 20 HP Power supply Nam
25. I N On Outdoor units Refnet joints A G Indoor unit 1 8 Conditions a The piping length between all indoor to the nearest branch kit is lt 40 m Example h i j p lt 40 m It is necessary to increase the pipe size of the gas and liquid piping if the pipe length between the first and the final branch kit is over 40 m If the increased pipe size is larger than the pipe size of the main pipe then the pipe size of the main pipe has to be increased as well Increase the pipe size as follows 9 5 12 7 12 7 15 9 15 9 gt 19 1 19 1 22 2 22 2 25 4 28 6 31 8 34 9 38 1 a If available on the site Otherwise it cannot be increased Example unit 8 b c d e f gt ps90 m and b c d etftg gt 40 m increase the pipe size of b c d e f g When the piping size is increased step b the piping length has to be counted as double except for the main pipe and the pipes that are not increased in pipe size The total piping length has to be within limitations see table above Example atbx2 cx2 dx2 ex2 fx2 gx2th itj ktl mt n lt 1000 m 500 m The piping length difference between the nearest indoor from first branch to the outdoor unit and farthest indoor to the outdoor unit is lt 40 m Example The farthest indoor unit 8 The nearest indoor unit 1 a b c d e f g p a h lt 40 m 5 3 6 Piping length VRV DX and Hydrobox For system containing VRV DX indoor
26. set Two user interface control Two user interfaces control one indoor System unit in case of group control system one group of indoor units The unit is individually operated NOTICE Contact your dealer in case of changing the combination or setting of group control and two user interface control systems 17 Energy saving and optimum operation Observe the following precautions to ensure the system operates properly Adjust the air outlet properly and avoid direct air flow to room inhabitants Adjust the room temperature properly for a comfortable environment Avoid excessive heating or cooling Prevent direct sunlight from entering room during cooling operation by using curtains or blinds Ventilate often Extended use requires special attention to ventilation Keep doors and windows closed If the doors and windows remain open air will flow out of your room causing a decrease in the cooling or heating effect Be careful not to cool or heat too much To save energy keep the temperature setting at a moderate level Never place objects near the air inlet or the air outlet of the unit It may cause deterioration in the effect or stop the operation Turn off the main power supply switch to the unit when the unit is not used for longer periods of time If the switch is on it consumes electricity Before restarting the unit turn on the main power supply switch 6 hours before
27. 3 SWITCH REFER TO SERVICE PRECAUTION LABEL ON EL COMPO BOX COVER s sn nn nsn 7 COLORS BLK BLACK REL 9 ONLY FOR RYYQ RYMQ MODEL RYYQ RYMQ RXYQ8 20T7Y1B DAIKIN Installer and user reference guide VRV IV system air conditioner 71 4P370475 1 2014 02 12 Technical data PRINTED CIRCUIT BOARD MAIN MAGNETIC RELAY Y1S ATP POWER MODULE A3P MP PRINTED CIRCUIT BOARD L1R L2R REACTOR POWER MODULE PRINTED CIRCUIT BOARD MC MOTOR COMPRESSOR CONNEC OR MIF PRINTED CIRCUIT BOARD MIF MOTOR FAN CONNEC OR CHECK THE RESIDUAL CHARGE MODE SET RETURN PUSH BUTTON SWITCH A1P PS SWITCHING POWER SUPPLY ATP TERMINAL BLOCK POWER SUPPLY Q1DI FIELD EARTH LEAKAGE BREAKER TERMINAL BLOCK CONTROL ATP CAPACITOR A3P Q1RP PHASE REVERSAL DETECT CIRCUIT ATP ELECTRONIC EXPANSION VALVE MAIN DIP SWITCH ATP THERMISTOR AIR ATP CRANKCASE HEATER R21T THERMISTOR M1C DISCHARGE INJEC 10N ELECTRONIC EXPANSION VALVE FUSE T 3 15 250V ATP R3T THERMI STOR ACCUMULATOR F101U FUSE A4P RAT THERMISTOR HEAT EXC LIQ PIPE ELECTRONIC EXPANSION VALVE TORAGE VESSEL NOTE8 F3U FIELD FUSE THERMISTOR SUBCOOL 110 LENO D VALVE MAIN F410U F412U FUSE A2P FUSE R6T
28. 5 ATP AGNETIC RELAY 5 ATP ELECTRONIC EXPANSION VALVE INJECTION AGNETIC RELAY Y5S ATP AGNETIC RELAY E1HC ATP MAGNETIC RELAY E2HC ATP ELECTRONIC EXPANSION VALVE STORAGE VESSEL NOTE 7 SOLENOID VALVE MAIN AGNETIC RELAY Y1S ATP REACTOR SOLENOID VALVE ACCUMULATOR OIL RETURN OTOR COMPRESSOR SOLENOID VALVE 0111 OTOR FAN SOLENOID VALVE 0112 SWITCHING POWER SUPPLY A1P A6P FIELD EARTH LEAKAGE BREAKER SOLENOID VALVE SUB NOTE 8 NOISE FILTER FERRITE CORE PHASE REVERSAL DETECT CIRCUIT A1P RESISTOR CURRENT LIMITING A6P NOISE FILTER A2P WITH SURGE ABSORBER RESISTOR A3P RESISTOR CURRENT SENSOR A4P A7P CONNECTOR FOR OPTIONAL ACCESSORIES RESISTOR CURRENT SENSOR A3P RESISTOR CURRENT LIMITING A3P RESISTOR CURRENT SENSOR A6P X37A CONNECTOR POWER ADAPTER CONNECTOR REMOTE SWITCHING COOL HEAT SELECTOR 18 20 CLASS ATP Printed circuit board main K1M Magnetic contactor A3P A6P A2P A5P Printed circuit board noise filter K1R Magnetic relay A3P A6P A3P A6P Printed circuit board inv K3R Magnetic relay Y3S A2P A6P A4P A7P Printed circuit board fan K4R Magnetic relay Y2S 51 53 Push button switch A1P mode set return K5R Magnetic relay 45 C32 C66 Capacitor AGP K6R Magnetic relay Y5S C47 C48 Capacitor K7R Magnetic
29. Depending on the radio waves a distance of 1 meter may not be sufficient WARNING After finishing the electrical work confirm that each electrical component and terminal inside the electrical components box is connected securely Make sure all covers are closed before starting up the unit NOTICE Only applicable if the power supply is three phase and the compressor has an ON OFF starting method If there exists the possibility of reversed phase after a momentary black out and the power goes on and off while the product is operating attach a reversed phase protection circuit locally Running the product in reversed phase can break the compressor and other parts RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 5 2 About the documentation 1 3 For the user f you are not sure how to operate the unit contact your installer The appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety Children must be supervised to ensure that they do not play with the product WARNING To prevent electric shocks or fire Do NOT rinse the unit Do NOT operate the unit with wet hands Do NOT place any
30. Example b g ls50 m If the piping length between the first branch and BP unit or VRV DX indoor unit is over 20 m it is necessary to increase the gas and liquid piping size between the first branch and BP unit or VRV DX indoor unit If the piping diameter of the sized up piping exceeds the diameter of the piping before the first branch kit than the latter also requires a liquid piping and gas piping size up 5 3 8 Multiple outdoor units Possible layouts The piping between the outdoor units must be routed level or slightly upward to avoid the risk of oil retention into the piping Pattern 1 Pattern 2 ovo To indoor unit Piping between outdoor units Not allowed Allowed Oxon RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 5 Preparation To avoid the risk of oil retention to the outmost outdoor unit always connect the stop valve and the piping between outdoor units as shown in the 4 correct possibilities of the figure below
31. F1U F2U FUSE T 3 15A 250V ATP VIR VIR POWER MODULE A3P A6P POWER MODULE A4P A7P FUSE A7P X1A 4A CONNECTOR M2F FIELD FUSE X5A 6 CONNECTOR CHECK THE RESIDUAL CHARGE X1M TERMINAL BLOCK POWER SUPPLY PILOTLAMP ATP SERVICE MONITOR GREEN X1M TERMINAL BLOCK CONTROL A1P YIE ELECTRONIC EXPANSION VALVE MAIN MAGNETIC CONTACTOR AGP MAGNETIC RELAY A3P A6P MAGNETIC RELAY A2P A5P MAGNETIC RELAY 45 ATP Y2E ELECTRONIC EXPANSION VALVE INJECTI ON ELECTRONIC EXPANSION VALVE STORAGE VESSEL NOTE 7 MAGNETIC RELAY 25 ATP MAGNETIC RELAY Y3S ATP MAGNETIC RELAY Y5S ATP KUR MAGNETIC RELAY ETHC ATP MAGNETIC RELAY E2HC ATP SOLENOID VALVE MAIN SOLENOID VALVE ACCUMULATOR OIL RETURN SOLENOID VALVE OIL1 SOLENOID VALVE 0112 MAGNETIC RELAY 15 A1P REACTOR SOLENOID VALVE SUB NOTE 8 NOISE FILTER FERRITE CORE MOTOR COMPRESSOR MOTOR FAN NOISE FILTER A2P ASP WITH SURGE ABSORBER SWITCHING POWER SUPPLY AIP A3P AGP FIELD EARTH LEAKAGE BREAKER PHASE REVERSAL DETECT CIRCUIT RESISTOR A6P RESISTOR CURRENT SENSOR A4P A7P Ehe STOR CURRENT SENSOR R78 RESISTOR CURRENT LIMITING A3P AGP R217 R22T THERMISTOR MIC M2C DISCHARGE R3T THERMISTOR ACCUMULATOR C
32. GRN GREEN 8 ONLY FOR RYYQ MODEL 9 ONLY FOR RYYQ RYMQ MODEL RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 69 12 Technical data PRINTED CIRCUIT BOARD MAIN MAGNETIC RELAY Y1S ATP 2 CONNEC OR M PRINTED CIRCUIT BOARD NOISE FILTER REACTOR X3A CONNEC OR CHECK HE RESIDUAL CHARGE PRINTED CIRCUIT BOARD INV MOTOR COMPRESSOR X1M TERMINAL BLOCK POWER SUPPLY PRINTED CIRCUIT BOARD FAN MOTOR FAN TERMINAL BLOCK CONTROL PUSH BUTTON SWITCH MODE SET RETURN SWITCHING POWER SUPPLY ATP YIE ELECTRONIC EXPANS ON VALVE MAIN FIELD EARTH LEAKAGE BREAKER CAPACITOR A3P HASE REVERSAL DETECT CIRCUIT ATP Y2E INJEC LON ELECTRONIC EXPANS ON VALVE DIP SWITCH A1P HERMISTOR AIR ATP CRANKCASE HEATER FUSE T 3 15A 250V ATP HERMISTOR M1G DISCHARGE HERMI STOR ACCUMULATOR SOLENO D VA ELECTRONIC EXPANS STORAGE VESSEL LVE MAIN ON VALVE NOTE 8 FIELD FUSE HERMISTOR HEAT EXC LIQ PIPE FUSE AP HERMISTOR SUBCOOL LIQ PIPE SOLENO D VA ACCUNULATO LVE R_OIL RETURN FUSE A2P HERMISTOR HEAT EXC GAS PIPE SOLENO D VA LVE 0 11 10974121 FUSE A2P PILOTLAMP ATP SERVICE MONITOR GREEN
33. Heat exchanger Fan Fan motor M1F M2F Accumulator Expansion valve main Y1E Expansion valve subcool heat exchanger 2 Expansion valve storage vessel Y3E Subcool heat exchanger Oil separator Solenoid valve oil accumulator Y2S Solenoid valve oil1 Y3S Solenoid valve oil2 Y4S 4 way valve main Y1S 4 way valve sub Y5S Electrical component box Service port refrigerant charge Stop valve liquid Stop valve gas Stop valve equalising gas Heat accumulation element Service port i INFORMATION Depending on the model type some components in the main component list may not be existing in the unit RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 65 12 Technical data Components and piping diagram RYMQ14 20
34. Installation information sticker e Fluorinated greenhouse gases label Take care not to damage the unit when removing the shrink foil f Multilingual fluorinated greenhouse gases label with a cutter g Piping accessory bag Remove the 4 bolts fixing the unit to its pallet 3 4 Accessory pipes Diameters AN WARNING Accessory pipes mm HP b _ Tear apart and throw away plastic packaging bags so that Gas pipe 8 19 1 nobody especially children can play with them Possible 10 254 222 risk suffocation Front connection ID 12 25 4 28 6 8 12 14 20 ID b 14 Bottom connection 16 ID 18 OD Ob 20 Liquid pipe 8 9 52 Front connection 10 ID 12 9 52 12 7 ID 14 12 7 M 16 Bottom connection ID b 18 12 7 15 9 Equaliser pipe 8 19 1 Front connection 10 ID 12 19 1 22 2 ID b 14 Bottom connection 16 ID 18 254 28 6 OD b 20 a Only for RYMQ models RYYQ RYMQ RXYQ8 20T7Y1B DAIKIN Installer and user reference guide VRV IV system air conditioner 7 4P370475 1 2014 02 4 About the units and options 3 5 To remove the transportation stay Only for 14 20 HP NOTICE If the unit is operated with the transportation stay attached abnormal vibration or noise may be generated The yellow transportation stay installed over the compressor leg for protecting the unit during transport must be removed Proceed as shown in the figure and procedure below 1 Sligh
35. Maximum number of branches 16 Maximum number of independent interconnectable systems 10 Up to 16 branches are possible for unit to unit cabling No branching is allowed after branching see figure below a a a A B i ee d L dub cesi 5 Ll Li x 9 L b f b X Outdoor unit Indoor unit Main line Branch line 1 Branch line 2 Branch line 3 No branch is allowed after branch Central user interface etc Outdoor indoor transmission wiring Master slave transmission wiring Drs gt a o 20709 Installer and user reference guide 34 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 6 Installation For the above wiring always use vinyl cords with 0 75 to 1 25 mm sheath or cables 2 core wires 3 core wire cables are allowable for the cooler heater changeover user interface only 6 8 4 Guidelines when knocking out knockout holes To punch a knockout hole hit on it with a hammer After knocking out the holes we recommend removing any burrs and paint the edges and areas around the holes using repair paint to prevent rusting When passing electrical wiring through the knockout holes prevent damage to the wires by wrapping the wiring with protective tape p
36. THERMISTOR HEAT EXC GAS PIPE THERMISTOR HEAT EXC DEICER LENO D VALVE ACCUMULATOR OIL RETURN PILOTLAMP ATP MAGNETIC RELAY A3P SERVICE MONITOR GREEN MAGNETIC CONTACTOR R313 THERMISTOR MIC BODY RESISTOR CURRENT LIMITING RESISTOR CURRENT SENSOR RESISTOR CURRENT SENSOR MAGNETIC RELAY A3P R865 R867 RESISTOR 21072766 z1F LENO D VALVE D VALVE 0111 SUB NOISE FILTER FERRITE CORE NOISE FILTER A2P WITH SURGE ABSORBER MAGNETIC RELAY ATP S1NPH PRESSURE SENSOR HIGH CONNECTOR FOR OPTIONAL ACCESSORIES MAGNETIC RELAY Y23 ATP S1NPL PRESSURE SENSOR LOW X37A CONNEC OR POWER ADAPTER MAGNETIC RELAY Y5S ATP S1PH PRESSURE SWITCH DISCH 2D083678 1 MAGNETIC RELAY E1HC ATP SEGI SEG3 J SEGMENT DISPLAY X66A CONNECT COOL HEAT SELECTOR OR REMOTE SWITCHING 10 12 CLASS Installer and user reference guide 72 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 12 Technical data 14 16 HP EET n 6 969002 HON HOI ATNO 8 TAGON DAAY N uw DO I HdzS Hd LS 5301430 119910 3 1 LIMOYIOLYOHS L NOQ ONIIVH3dO N3HM 9 LJun5 73 02 X08 0902 di H NO 148 1 0110 2384 391AM3S 01 83434 HOLIM
37. a supply with a system impedance Z less than or equal to Zmar EN IEC 61000 3 12 provided that the short circuit power S is greater than or equal to the minimum S value at the interface point between the user s supply and the public system 61000 3 12 European International Technical Standard setting the limits for harmonic currents produced by equipment connected to public low voltage systems with input current gt 16 and lt 75 A per phase tis the responsibility of the installer or user of the equipment to ensure by consultation with the distribution network operator if necessary that the equipment is connected only to a supply with a short circuit power S greater than or equal to the stops minimum S value X Not allowed O Allowed Model Zmmax Q Minimum S If the piping length between the outdoor units exceeds 2 create value kVA a rise of 200 mm or more in the gas line within a length of 2 m RYYQ8 RYMQ8 RXYQ8 1216 from the kit RYYQ10 RYMQ10 RXYQ10 564 If Then RYYQ12 RYMQ12 RXYQ12 615 lt 2 RYYQ14 RYMQ14 RXYQ14 917 Q RYYQ16 RYMQ16 RXYQ16 924 RYYQ18 RYMQ18 RXYQ18 873 aj RYYQ20 RYMQ20 RXYQ20 970 sem RYYQ22 RXYQ22 1179 gt 2 gt 2 gt 2 RYYQ24 RXYQ24 2140
38. are Pb lead gt 0 004 Waste batteries must be treated at a specialized treatment facility for reuse By ensuring waste batteries are disposed of correctly you will help to prevent potential negative consequences for the environment and human health 2 About the documentation 2 1 About this document Target audience Authorized installers end users Documentation set This document is part of a documentation set The complete set consists of Document Contains Format General Safety instructions that safety you must read before precautions installing Paper in the box of the outdoor unit Outdoor unit Installation and operation installation instructions and operation manual Installer and Preparation of the Digital files on http user installation technical www daikineurope com reference specifications support and manuals guide reference data product information Detailed step by step instructions and background information for basic and advanced usage Latest revisions of the supplied documentation may be available on the regional Daikin website or via your dealer Keep the following in mind At delivery the unit must be checked for damage Any damage must be reported immediately to the carrier s claims agent Bring the packed unit as close as possible to its final installation position to prevent damage during transport When handling the un
39. current operation parameters of the unit Push buttons and DIP switches Item Description Push buttons By operating the push buttons it is possible to Perform special actions refrigerant charge testrun etc automatic Perform field settings demand operation low noise etc DIP switches By operating the DIP switches it is possible to 051 1 COOL HEAT selector refer to the manual of the cool heat selector switch OFF not installed factory setting DS1 2 4 NOT USED DO NOT CHANGE THE FACTORY SETTING DS2 1 4 NOT USED DO NOT CHANGE THE FACTORY SETTING See also 7 2 2 Field setting components on page 38 7 2 3 To access the field setting components on page 38 PC configurator For VRV IV heat pump system it is alternatively possible to make several commissioning field settings through a personal computer interface for this option EKPCCAB is required The installer can prepare the configuration off site on PC and afterwards upload the configuration to the system See also 7 2 9 To connect the PC configurator to the outdoor unit on page 43 Mode 1 and 2 Mode Description Mode 1 Mode 1 can be used to monitor the current monitoring situation of the outdoor unit Some field setting settings contents can be monitored as well Mode 2 Mode 2 is used to change the field settings of the system Consulting the current field setting value and changing
40. display T1A Current sensor VAR Power module A6P VAR Power module A4P A7P V2R Power module X1A X4A Connector M2F M1F X3A X5A X6A Connector check the residual charge X1M Terminal strip power supply X1M Terminal strip control A1P Electronic expansion valve main 2 Electronic expansion valve injection Electronic expansion valve storage vessel Y1S Solenoid valve main Y2S Solenoid valve accumulator oil return Y3S Solenoid valve oil 1 45 Solenoid valve oil 2 Y5S Solenoid valve sub Z1C Z7C Noise filter ferrite core Z1F Noise filter with surge absorber L1 L2 L3 Live N Neutral Field wiring Terminal strip Connector o Terminal D Protective earth screw BLK Black BLU Blue BRN Brown GRN Green GRY Grey ORG Orange PNK Pink RED Red RYYQ RYMQ RXYQ8 20T7Y1B DAIKIN Installer and user reference guide VRV IV system air conditioner 4P370475 1 2014 02 77 12 Technical data 12 8 Technical specifications Outdoor unit INFORMATION technical and electrical details of multi combinations see technical engineering data unit Technical specifications Specification 8 HP 10 HP 12 HP 14 HP 16 HP 18 HP 20 HP Casing material Painted galvanised steel Dimensions hxwxd 1685x930x765 mm 1685x1240x765 mm Weight RXYQ 187 kg 194 kg 305 kg 314 kg RYYQ 261 kg 2
41. install the required fuses or circuit breakers Make sure to install an earth leakage protector Failure to do so may cause electric shock or fire When installing the earth leakage protector make sure it is compatible with the inverter resistant to high frequency electric noise to avoid unnecessary opening of the earth leakage protector Install power cables at least 1 meter away from televisions or radios to prevent interference Depending on the radio waves a distance of 1 meter may not be sufficient RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 33 6 Installation WARNING After finishing the electrical work confirm that each electrical component and terminal inside the electrical components box is connected securely Make sure all covers are closed before starting up the unit NOTICE Do not operate the unit until the refrigerant piping is complete Running the unit before the piping is ready will break the compressor NOTICE If the power supply has a missing or wrong N phase equipment will break down NOTICE Do NOT install a phase advancing capacitor because this unit is equipped with an inverter A phase advancing capacitor will reduce performance and may cause accidents NOTICE e cS Never remove a thermistor sensor etc when connecting power wiring and transmission wi
42. installed match the total number of indoor units which are recognised by the system In case there is a mismatch it is advised to check the communication wiring path between outdoor and indoor units F1 F2 communication line 1 13 Shows the total number of connected outdoor units in case of multiple outdoor system It can be convenient to check if the total number of outdoor units which are installed matches the total number of outdoor units which are recognised by the system In case there is a mismatch it is advised to check the communication wiring path between outdoor and outdoor units Q1 Q2 communication line 1 17 1 18 1 19 Shows 1 17 The latest malfunction code 1 18 The 2nd last malfunction code 1 19 The 3rd last malfunction code When the latest malfunction codes were reset by accident on an indoor unit user interface they can be checked again through this monitoring settings For the content or reason behind the malfunction code see 10 2 Solving problems based on error codes on page 50 where most relevant malfunction codes are explained Detailed information about malfunction codes can be consulted in the service manual of this unit 1 29 1 30 1 31 Shows the estimated leaked refrigerant amount kg based on 1 29 The latest leak detection operation 1 30 The 2nd last leak detection operation 1 31 The 3rd last leak detection operation To be able to use the
43. may cause cracking of flare nuts soap water may contain salt which absorbs moisture that will freeze when the piping gets cold and or lead to corrosion of flared joints soap water may contain ammonia which causes a corrosive effect between the brass flare nut and the copper flare 6 5 5 To perform vacuum drying NOTICE The connections to the indoor units and all indoor units should also be leak and vacuum tested Keep if existing all field supplied field valves to the indoor units open as well Leak test and vacuum drying should be done before the power supply is set to the unit If not see 6 5 1 About checking the refrigerant piping on page 25 for more information To remove all moisture from the system proceed as follows 1 Evacuate the system for at least 2 hours to a target vacuum of 100 7 kPa 1 007 bar 5 Torr 2 Check that with the vacuum pump turned off the target vacuum is maintained for at least 1 hour 3 Should you fail to reach the target vacuum within 2 hours or maintain the vacuum for 1 hour the system may contain too much moisture In that case break the vacuum by pressurising with nitrogen gas to a gauge pressure of 0 05 MPa 0 5 bar and repeat steps 1 to 3 until all moisture has been removed 4 Depending on whether you want to immediately charge refrigerant through the refrigerant charge port or first pre charge a portion of refrigerant through the liquid line either open the ou
44. mind the guidelines for Brazing Using the stop valves Removing the pinched pipes 6 4 3 To route the refrigerant piping Installation of refrigerant piping is possible as front connection or side connection when taken out from the bottom as shown in the figure below a Left side connection b Front connection c Right side connection For side connections the knockout hole on the bottom plate should be removed a Large knockout hole b Drill c Points for drilling NOTICE Precautions when knocking out knockout holes Be sure to avoid damaging the casing After knocking out the knockout holes we recommend you remove the burrs and paint the edges and areas around the edges using repair paint to prevent rusting When passing electrical wiring through the knockout holes wrap the wiring with protective tape to prevent damage RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 21 6 Installation 6 4 4 To connect the refrigerant piping to the 6 4 6 Multiple outdoor units Knockout holes outdoor unit Connection Description INFORMATION Front connection Remove the front plate knockout holes to local inter unit piping are field supplied except the connect accessory pipes NOTICE Precautions when connecting field piping Add brazing material as shown in the figure lt 025 4 2025 4 1 1 Bottom conne
45. objects containing water on the unit NOTICE Do NOT place any objects or equipment on top of the unit Do NOT sit climb or stand on the unit Units are marked with the following symbol Sa This means that electrical and electronic products may not be mixed with unsorted household waste Do NOT try to dismantle the system yourself the dismantling of the system treatment of the refrigerant of oil and of other parts must be done by an authorized installer and must comply with applicable legislation Units must be treated at a specialized treatment facility for reuse recycling and recovery By ensuring this product is disposed of correctly you will help to prevent potential negative consequences for the environment and human health For more information contact your installer or local authority For the installer 3 About the box 3 1 Overview About the box This chapter describes what you have to do after the box with the outdoor unit is delivered on site It contains information about Unpacking and handling the outdoor unit Removing the accessories from the unit Removing the transportation stay Batteries are marked with the following symbol This means that the batteries may not be mixed with unsorted household waste If a chemical symbol is printed beneath the symbol this chemical symbol means that the battery contains a heavy metal above a certain concentration Possible chemical symbols
46. obstacles F Sides along the installation site with obstacles Suction side n case of an installation site where sides A B C D have obstacles the wall heights of sides have no impact on Service space dimensions Refer to the figure above for impact of wall heights of sides B D on service space dimensions In case of an installation site where only the sides A B have obstacles the wall heights have no influence on any indicated Service space dimensions The installation space required on these drawings are for full load heating operation without considering possible ice accumulation If the location of the installation is in a cold climate then all dimensions above should be gt 500 mm to avoid accumulation of ice in between the outdoor units INFORMATION The service space dimensions in above figure are based on cooling operation at 35 ambient temperature standard conditions INFORMATION Further specifications can be found in the technical engineering data RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 55 12 Technical data 12 4 Components Outdoor unit Components RYYQ8 12 Compressor M1C Compressor M2C Heat exchanger Fan Fan motor M1F M2F Accumulator Expansion valve main Y1E Expansion valve subcool heat exchanger Y2E Expansion valve storage vessel Y3E Subcool heat exchanger
47. of 0 1 kg R X x 22 2 x0 37 X x 19 1 x0 26 X x 15 9 x0 18 X x 12 7 x0 12 X x 9 5 x0 059 X x 6 4 x0 022 A B X Total length m of liquid piping size at Piping length Total indoor unit A parameter kg capacity CR gup 10 16 HP 18 20 30 m 50 lt lt 105 0 0 5 105 lt CR lt 130 0 5 1 gt 30 m 50 lt lt 70 0 0 5 70 lt lt 85 03 0 5 10 85 lt lt 105 07 1 1 5 105 lt lt 130 12 1 5 2 0 CR Connection ratio INFORMATION When using multi models add the sum of individual HP modules Piping length is considered the distance from the outdoor unit to the farthest indoor unit Model B parameter kg RYYQ8 RYYQ10 RYYQ12 0 9 RYYQ14 RYYQ16 1 4 RYYQ18 RYYQ20 1 3 6 7 2 About charging refrigerant Once vacuum drying is finished additional refrigerant charging can start There are two methods to charge additional refrigerant Method See 6 7 6 Step 6a To automatically charge refrigerant on page 31 Automatic charge Manual charge 6 7 7 Step 6b To manually charge refrigerant on page 32 INFORMATION Adding refrigerant using the automatic refrigerant charging function is not possible when Hydrobox units or RA DX indoor units are connected to the system To speed up the refrigerant charging process it is in case of larger Systems recommended
48. of oxidised film on the inside of the piping This film adversely affects valves and compressors in the refrigerating System and prevents proper operation Set the nitrogen pressure to 20 kPa just enough so it can be felt on the skin with a pressure reducing valve a Refrigerant piping b Part to be brazed Taping d Manual valve e Pressure reducing valve f Nitrogen Do NOT use anti oxidants when brazing pipe joints Do NOT use flux when brazing copper to copper refrigerant piping Use phosphor copper brazing filler alloy BCuP which does not require flux Flux has an extremely harmful influence on refrigerant piping Systems For instance if chlorine based flux is used it will cause pipe corrosion or in particular if the flux contains fluorine it will deteriorate the refrigerant oil 6 4 10 Using the stop valve and service port To handle the stop valve Make sure to keep both stop valves open during operation The figure below shows the name of each part required in handling the stop valve The stop valve is factory closed Service port and service port cover Stop valve Field piping connection Stop valve cover i b Service port Stop valve cover Hexagon hole Shaft Seal To open the stop valve 1 Remove the stop valve cover 2 Insert a hexagon wrench into the stop valve and turn the stop valve counterclockwise 3 When the s
49. operation to ensure smooth running Refer to Maintenance in the indoor unit manual When the display shows time to clean the air filter ask a qualified service person to clean the filters Refer to Maintenance in the indoor unit manual Keep the indoor unit and user interface at least 1 m away from televisions radios stereos and other similar equipment Failing to do so may cause static or distorted pictures Do not place items under the indoor unit they may be damaged by water Condensation may form if the humidity is above 8096 or if the drain outlet gets blocked This VRV IV heat pump system is equipped with advanced energy saving functionality Depending on the priority emphasises can be put on energy saving or comfort level Several parameters can be selected resulting in the optimal balance between energy consumption and comfort for the particular application Several patterns are available and roughly explained below Contact your installer or dealer for advice or to modify the parameters to the needs of your building Detailed information is given for the installer in the installation manual He can help you to realize the best balance between energy consumption and comfort RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 85 18 Maintenance and service 17 1 Available main operation methods Basic The refr
50. page 47 INFORMATION If the total additional refrigerant amount was reached in step 4 by pre charging only record the amount of refrigerant that was added on the additional refrigerant charge label provided with the unit and attach it on the back side of the front panel Additionally input the additional refrigerant amount into the system via setting 2 14 Perform the test procedure described 8 Commissioning on page 47 Charging refrigerant 5 After pre charging connect valve A to the refrigerant charge port and charge the remaining additional refrigerant through this port Open all outdoor unit stop valves At this point valve A must remain closed Weighing scales Refrigerant R410A tank siphon system Vacuum pump Refrigerant charge port Valve A gt m INFORMATION For a multi outdoor unit system it is not required to connect all charge ports to a refrigerant tank The refrigerant will be charged with 22 kg in 1 hour time at an outdoor temperature of 30 C DB or with 6 kg at an 6 7 6 Step 6a To automatically charge refrigerant INFORMATION The automatic refrigerant charging has limits as described below Out of these limits the system cannot operate the automatic refrigerant charging Outdoor temperature 0 43 DB Indoor temperature 10 32 C DB Total indoor unit capacity 28096 The remaining additional re
51. relay E1HC DS1 DS2 DIP switch A1P K8R Magnetic relay E2HC E1HC E2HC Crankcase heater K10R Magnetic relay option F1U F2U Fuse 250 V 3 15 A T A1P K11R Magnetic relay Y1S F101U Fuse A4P A7P L1R L3R Reactor F400U Fuse A2P A5P M1C M2C Motor compressor F410U F412U Fuse A2P A5P M1F M2F Motor fan F601U Fuse A6P PS Switching power supply A1P A3P A6P HAP Pilot lamp A1P service monitor green Q1LD Leakage detection circuit ATP Installer and user reference guide DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B 76 VRV IV system air conditioner 4P370475 1 2014 02 12 Technical data Q1RP Phase reversal detection circuit A1P WHT White R1 Resistor YLW Yellow R2 R3 Resistor A6P Connector for optional accessories R24 Resistor current sensor A4P A7P X14A Connector drain pan heater R77 Resistor current sensor A3P A6P X37A Connector power adapter R78 Resistor A6P R313 Resistor current sensor X66A Connector remote switching cool heat selector R865 R867 Resistor R1T Thermistor air A1P R21T R22T Thermistor discharge M1C M2C discharge R3T Thermistor accumulator R4T Thermistor heat exc liq pipe R5T Thermistor subcool liq pipe R6T Thermistor heat exc gas pipe R7T Thermistor heat exc de icer R8T Thermistor M2C body S1NPH Pressure sensor high S1NPL Pressure sensor low S1PH S2PH Pressure switch high SE1 SE3 7 segment
52. temperature range for leak detection operation E H Too low pressure was noticed during leak detection operation Restart leak detection operation E 5 Indicates an indoor unit which is not compatible with leak detection functionality is installed e g RA DX indoor unit Hydrobox Result of leak detection operation is informed in 1 35 and 1 29 Steps during leak detection Display Steps Log Preparation EU Pressure equalisation toe Start up EUH Leak detection operation t b Standby ED 1 Leak detection operation is finished a Ifthe indoor temperature is too low first the heating operation will start b Ifthe indoor temperature is lower than 15 due to leak detection operation and the outdoor temperature is lower than 20 the heating operation will start to maintain basic comfort heating level 8 Commissioning 8 1 Overview Commissioning After installation and once the field settings are defined the installer is obliged to verify correct operation Therefore a test run must be performed according to the procedures described below This chapter describes what you have to do and know to commission the system after it is configured Commissioning typically consists of the following stages Checking the Checklist before test run 2 Performing a test run 3 If necessary correcting errors after abnormal completion of the test run 4 Operating the syste
53. the snow will NOT affect the unit If lateral snowfall is possible make sure that the heat exchanger coil is NOT affected by the snow If necessary install a snow cover or shed and a pedestal INFORMATION For instructions on how to install the snow cover contact your dealer NOTICE When installing the snow cover do NOT obstruct the air flow of the unit NOTICE When operating the unit in a low outdoor ambient temperature with high humidity conditions make sure to take precautions to keep the drain holes of the unit free by using proper equipment In heating 20 155 l PENN 15 10 5 a a b 0 E E5 10 15 20 10 15 20 2527 30 T C DB a Warming up operation range b Operation range T4 Ambient indoor temperature Tao Ambient outdoor temperature If the unit has to operate for 5 days in this area with high humidity gt 90 Daikin recommends to install the optional heater tape kit EKBPHO12T 20 to keep the drain holes free If you do so you also have to install the heater tape PCB kit EKBPHPCBT 5 2 3 Securing safety against refrigerant leaks About safety against refrigerant leaks The installer and system specialist shall secure safety against leakage according to local regulations or standards The following standards may be applicable if local regulations are not available Thi
54. the user interface or outdoor unit 7 segment display In case of a displayed malfunction code perform correcting actions as explained in the malfunction code table Carry out the test operation again and confirm that the abnormality is properly corrected INFORMATION Refer to the installation manual of the indoor unit for other detailed malfunction codes related to indoor units 8 7 Operating the unit Once the unit is installed and test operation of outdoor unit and indoor units is finished the operation of the system can start For operating the indoor unit the user interface of the indoor unit should be switched ON Refer to the indoor unit operation manual for more details 9 Maintenance and service NOTICE Maintenance should preferably be carried out yearly by an installer or service agent Overview Maintenance and service This chapter contains information about Preventing electrical hazards when maintaining and servicing the system The refrigerant recovery operation P Maintenance safety precautions DANGER RISK ELECTROCUTION DANGER RISK OF BURNING NOTICE Risk of electrostatic discharge Before performing any maintenance or service work touch a metal part of the unit in order to eliminate static electricity and to protect the PCB RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and u
55. to enable low noise operation based on an external input For this operation an optional accessory is required 1 2 Shows the status of power consumption limitation operation Power consumption limitation reduces the power consumption of the unit compared to nominal operating conditions 1 2 Description 0 Unit is currently not operating under power consumption limitations 1 Unit is currently operating under power consumption limitation Power consumption limitation can be set in mode 2 There are two methods to activate power consumption limitation of the outdoor unit System RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 39 7 Configuration The first method is to enable a forced power consumption limitation by field setting The unit will always operate at the selected power consumption limitation The second method is to enable power consumption limitation based on an external input For this operation an optional accessory is required 1 5 1 6 Shows 1 5 The current T target parameter position 1 6 The current T target parameter position Refer to 7 3 Energy saving and optimum operation on page 43 for more details about the contents of this value 1 10 Shows the total number of connected indoor units It can be convenient to check if the total number of indoor units which are
56. to first pre charge a portion of refrigerant through the liquid line before proceeding with the actual automatic or manual charging This step is included in below procedure see 6 7 5 To charge refrigerant on page 30 It can be skipped but charging will take longer then a B parameter is ONLY required for RYYQ8 20 models NOT for RXYQ8 54 and RYYQ22 54 When using metric piping please take into account following table concerning the weight factor to be allocated It should be substituted in the formula for R Inch piping Metric piping size mm Weight factor size mm Weight factor 6 4 0 022 6 0 018 9 52 0 059 10 0 065 12 7 0 12 12 0 097 15 9 0 18 15 0 16 16 0 18 19 1 0 26 18 0 24 22 2 0 37 22 0 35 When selecting indoor unit following table with connection ratio limitation has to be respected More detailed information can be found in technical engineering data RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 27 6 Installation Used Total Allowable capacity connection ratio Used Total Allowable capacity connection ratio indoor capacity VRV DX RA DX ET indoor capacity VRV DX RA DX LT units CR Hydrobox units CR Hydrobox VRV DX 50 130 50 130 VRV DX 50 130 50 130 0 80 VRVDX 80 130 0 1
57. value by pushing BS3 1 time To start operation according to the chosen setting confirm again by pushing BS3 6 Toleave the monitoring function push BS1 2 times Result You will return to the default situation when shipped from factory 7 2 7 Mode 1 Monitoring settings 1 0 Shows whether the unit you check is a master slave 1 or slave 2 unit Master slave 1 and slave 2 indications are relevant in multiple outdoor unit system configurations The allocation of which outdoor unit is master slave 1 or slave 2 are decided by the unit s logic The master unit should be used to input field settings in mode 2 1 0 Description No indication Undefined situation 0 Outdoor unit is master unit 1 Outdoor unit is slave 1 unit 2 Outdoor unit is slave 2 unit 1 1 Shows the status of low noise operation Low noise operation reduces the sound generated by the unit compared to nominal operating conditions 1 1 Description 0 Unit is currently not operating under low noise restrictions 1 Unit is currently operating under low noise restrictions Low noise operation can be set in mode 2 There are two methods to activate low noise operation of the outdoor unit system The first method is to enable an automatic low noise operation during night time by field setting The unit will operate at the selected low noise level during the selected time frames The second method is
58. 14 02 12 Technical data Components RYMQ14 20 N k m k Ug 7 lt 3 Compressor 1 Compressor 2 Heat exchanger Fan Fan motor M1F M2F Accumulator Expansion valve main Y1E Expansion valve subcool heat exchanger Y2E Expansion valve storage vessel Y3E Subcool heat exchanger Oil separator Solenoid valve oil accumulator Y2S Solenoid valve oil1 Y3S Solenoid valve oil2 Y4S 4 way valve main Y1S 4 way valve sub Y5S Electrical component box Service port refrigerant charge Stop valve liquid Stop valve gas Stop valve equalising gas Heat accumulation element Service port INFORMATION Depending on the model type some components in the main component list may not be existing in the unit RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 59 12 Technical data Components RXYQ8 12 Compressor M1C Compressor M2C Heat exchanger Fa
59. 30 0 130 LT RA DX Hydrobox RA DX 80 130 80 130 a ratio 6 7 4 To charge refrigerant Flow chart For more information see 6 7 5 To charge refrigerant on page 30 Pre charging refrigerant Step 1 Calculate additional refrigerant charge amount R kg Step 2 3 the liquid line only Execute pre charging amount kg Open valves C D and B to the liquid and equalising line Charge the equalising line to maximally 0 05 MPa then close valve C and disconnect its connection to the manifold Continue pre charging through 4 Close valves D and B Charging is finished Fill in the amount on the additional refrigerant charge label Input the additional refrigerant amount via setting 2 14 Gototestrun Refrigerant overcharge happened recover refrigerant to reach Step 4b Close valves D and B Continued on next page gt gt Installer and user reference guide 28 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 6 Installation Charging refrigerant Continuation of previous page R Q Step 5 Connect valve A to the refrigerant charge port d Open all outdoor unit stop valves Step 6 Proceed with automatic or manual charge
60. 5 4 way valve main Y1S 4 way valve sub Y5S Electrical component box Service port refrigerant charge Stop valve liquid Stop valve gas Stop valve equalising gas Heat accumulation element Service port INFORMATION Depending on the model type some components in the main component list may not be existing in the unit lt 3 Installer and user reference guide DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B 64 VRV IV system air conditioner 4P370475 1 2014 02 12 Technical data Components and piping diagram RYMQ8 12 lt 3 77 d ERIT w Cs e j 95 1 t F Ul g 5 RSTO 086 RIT F c J P lo J S1NPL SiNPH 14 TRIT z FPS k S1PH R21T 0 f Xm T M a RET 1 UW tus S MIC r HN Compressor M1C Compressor M2C
61. 68 kg 364 kg 398 kg RYMQ 188 kg 195 kg 309 kg 319 kg Operation range Cooling min max 5 43 Heating min max 20 21 Cooling Capacity 22 4 kW 28 0 kW 33 5 kW 40 0 kW 45 0 kW 50 4 kW 56 0 kW EER 4 30 3 84 3 73 3 64 3 46 3 36 3 03 Heating Capacity 25 0 kW 31 5 kW 37 5 kW 45 0 kW 50 0 kW 56 5 kW 63 0 kW COP 4 54 4 27 4 12 4 02 3 91 3 87 3 71 PED Category 2 Most critical part Accumulator PSxV 325 barxl 415 barxl 492 5 barxl Maximum number of indoor units connected c 64 Heat exchanger Type cross fin Treatment anti corrosion Fan Type propeller Quantity 1 2 Air flow rate 162 m min 175 m min 185 m min 223 m min 260 m min 251 m min 261 m min Motor 1 2 Model brushless DC Output pcs 750W Compressor Quantity Model inverter Type hermetically sealed scroll compressor Crankcase heater 33W Sound level nominal Sound power 78 dBA 79 dBA 81 dBA 86 dBA 88 dBA Sound pressure 58 dBA 61 dBA 64 dBA 65 dBA 66 dBA Refrigerant Type 410
62. DAIKIN Installer and user reference guide VRV IV system air conditioner SEN w SN An f j j j 002 RYYQ8T7Y1B RYYQ10T7Y1B RYYQ12T7Y1B RYYQ14T7Y1B RYYQ16T7Y1B RYYQ18T7Y1B RYYQ20T7Y1B RYMQST7Y1B RYMQ10T7Y1B RYMQ12T7Y1B RYMQ14T7Y1B RYMQ16T7Y1B RYMQ18T7Y1B RYMQ20T7Y1B RXYQ8T7Y1B RXYQ10T7Y1B RXYQ12T7Y1B RXYQ14T7Y1B RXYQ16T7Y1B RXYQ18T7Y1B Installer and user reference guide RXYQ20T7Y1B VRV IV system air conditioner Engien Table of Contents 6 4 4 To connect the refrigerant piping to the outdoor unit 22 Table of Contents 6 4 5 connect the multi connection piping 22 6 4 6 Multiple outdoor units Knockout holes 6 4 7 To connect the refrigerant branching kit 648 To protect against contamination 1 General safety pr ecautions 3 6 4 9 To braze the pipe end anui 23 14 About the Hau ON 3 6 4 10 Using the stop valve and service port 23 1 124 Meaning of warnings and symbols 8 6 4 11 To remove the pinched pipes 24 12 h 6 5 Checking the refrigerant m 25 1152 miu 4 6 5 1 About checking the refrigerant piping 25 TER lt 6 5 2 Checking refrigerant piping General guid
63. ONNECTOR FOR OPTIONAL ACCESSORIES CONNECTOR REMOTE SWITCHING COOL HEAT SELECTOR Installer and user reference guide 74 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 12 Technical data 18 20 HP 08928002 719008 ONAY OAAY 1108 pH g Tom w 0 48 809 2 ra y JB 80380100 NOLLYNINEOSIO S S321A30 NOLIOIONS AHL LITONIOIMONS 1 NOQ NAHY 9 durar m XB H NO 19877 NOIlnYOdHd 301AN3S Ol 38438 HOLIAS 159 ISN OL S jp DEO f MENA TWANYW NO LVTIVISNI JHL OL 83 34 2 14 NOISSIWSNYYL 80001 0 0001 0_ 0 13 NOISSIWSNYH 4000110 8000 1 01 ONISIM 01193 09 303 77 W3ldVQOV 1 01140 JHL 30 NOLIVTTVISNI 3Hl Ol 83438 N3ldv v 1 01140 JHL 9 5 N3HM 3895 3 11931094 WNIHH3l 901934802 39018 wNIWH3I ITI 1313 SOF 7 LINN 8000110 IHL Ol AINO 5317199 39V10 oi 5 83 00 XXE 80700 18001073 ly i TARAS 0 mW 00 00 KR 118919 42009
64. Otherwise the malfunction code LJ will be displayed on the user interface and normal operation or individual indoor unit test run cannot be carried out Abnormalities on indoor units cannot be checked for each unit separately After the test operation is finished check the indoor units one by one by performing a normal operation using the user interface Refer to the indoor unit installation manual for more details e g Hydrobox concerning the individual test run INFORMATION t may take 10 minutes to achieve a uniform refrigerant state before the compressor starts During the test operation the refrigerant running sound or the magnetic sound of a solenoid valve may become loud and the display indication may change These are not malfunctions 8 5 To perform a test run 1 Close all front panels in order to not let it be the cause of misjudgement except the electrical component box inspection opening service cover 2 Make sure all field settings you want are set see 7 2 Making field settings on page 37 3 Turn ON the power to the outdoor unit and the connected indoor units NOTICE Be sure to turn on the power 6 hours before operation in order to have power running to the crankcase heater and to protect the compressor 4 Make sure the default idle situation is existing see 7 2 4 To access mode 1 or 2 on page 38 Push BS2 for 5 seconds or more The unit will start test operation Result The t
65. Outdoor unit other system transmission F1 F2 00 0 The interconnecting wiring between the outdoor units in the same piping system must be connected to the Q1 Q2 Out Multi terminals Connecting the wires to the F1 F2 terminals results in system malfunction The wiring for the other systems must be connected to the F1 F2 Out Out terminals of the PCB in the outdoor unit to which the interconnecting wiring for the indoor units is connected The base unit is the outdoor unit to which the interconnecting wiring for the indoor units is connected 6 8 7 To finish the transmission wiring After installing the transmission wires inside the unit wrap them along with the on site refrigerant pipes using finishing tape as shown in figure below a c T ERE Liquid pipe Gas pipe Insulator Transmission wiring F1 F2 Finishing tape 6 8 8 To route and fix the power supply NOTICE When routing earth wires secure clearance of 25 mm or more away from compressor lead wires Failure to observe this instruction properly may adversely affect correct operation of other units connected to the same earth The power supply wiring can be routed from the front and left side Fix it to the lower mounting hole 8 12 HP 14 20 HP Power supply possibility 1 Power supply possibility 2 Power supply possibility 3 Use conduit Tie wrap a Knockout hole h
66. RV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 79 12 Technical data 12 9 Capacity table Indoor unit Total capacity of indoor units needs to be within the specified range The connection ratio CR 50 lt lt 130 HP class of 50 100 130 minimum CR nominal maximum CR 8 100 200 260 10 125 250 325 12 150 300 390 14 175 350 455 16 200 400 520 18 225 450 585 20 250 500 650 22 275 550 715 24 300 600 780 26 325 650 845 28 350 700 910 30 375 750 975 32 400 800 1040 34 425 850 1105 36 450 900 1170 38 475 950 1235 40 500 1000 1300 42 525 1050 1365 44 550 1100 1430 46 575 1150 1495 48 600 1200 1560 50 625 1250 1625 52 650 1300 1690 54 675 1350 1755 NOTICE When selecting the total capacity higher than mentioned in above table cooling and heating capacity will drop For additional information see technical engineering data Installer and user reference guide 80 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 13 For the user For the user 13 About the system INFORMATION This appliance is intended to be used by expert or trained users in shops in light industry and on farms or for commercial use by lay persons The indoor unit part of VRV IV heat pump system can be used for heati
67. S 159 ISN Ol MOH S gd NOLIVTIVISNI JHL Ol 83434 03 12 NOISSIWSNVYL u000100 1000100 24 14 NOISSIWSNYYL 8000100 8000 1 Ol NOILOANNOO 303 F Hildv vV 190 SHI JO WANVA NOIIVTIVISNI JHL 0184444 uJldvQv 1140 JHL 9NISQ N3HM H NNIWHSI 0 80193NNO9 ONIMIM 91314 7 LINN 84000100 SHI OL S3 lddV NIYIM SIHL L S310N t 2100 055309 THNOLLd0 90199795 IN3H 000 i0 JUN OVIT 113104400 e 0380102 NOLLWNINOSIO EK 0300100 019380 IM 100 AS DAIKIN Installer and user reference guide RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 73 12 Technical data PRINTED CIRCUIT BOARD MAIN RAT THERMISTOR HEAT EXC 110 PIPE PRINTED CIRCUIT BOARD NOISE FILTER RT THERMISTOR SUBCOOL LIQ PIPE PRINTED CIRCUIT BOARD INV R6T THERMISTOR HEAT EXC GAS PIPE PRINTED CIRCUIT BOARD PUSH BUTTON SWITCH AIP MODE SET RETURN 032 C66 CAPACITOR A6P SIPH 52 PRESSURE SWITCH DISCH RIT SINPH THERMISTOR HEAT EXC DEICER PRESSURE SENSOR HI GH SINPL PRESSURE SENSOR LOW 5 0175 03 7 SEGMENT DISPLAY 051 DS2 DIP SWITCH AIP E1HC E2HC CRANKCASE HEATER
68. Service port INFORMATION Depending on the model type some components in the main component list may not be existing in the unit a lt 3 RYYQ RYMQ RXYQ8 20T7Y1B DAIKIN Installer and user reference guide VRV IV system air conditioner 61 4P370475 1 2014 02 12 Technical data 12 5 Components Electrical component box a Main b Terminal block X1M main terminal block which allows easy connection of field wiring for power supply c Terminal X1M on main PCB terminal block for transmission wiring d Cable tie mountings the cable tie mountings allow to fix the field wiring with cable ties to the electrical component box to ensure strain relief INFORMATION For more details refer to the wiring diagram of the units The wiring diagram is located on the inside of the electrical component box Installer and user reference guide DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B 62 VRV IV system air conditioner 4P370475 1 2014 02 12 Technical data 12 6 Piping diagram Outdoor unit Components and piping diagram RYYQ8 12
69. T Concerning refnet headers choose from the following table in accordance with the total capacity of all the indoor units connected below the refnet header Indoor unit capacity index 2 pipes 200 KHRQ22M29H 200 lt lt 290 290 lt lt 640 KHRQ22M64H 2640 KHRQ22M75H a Ifthe pipe size above the refnet header is 034 9 or more KHRQ22M75H is required Installer and user reference guide 14 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 5 Preparation 5 3 4 About the piping length Make sure to perform the piping installation within the range of the maximum allowable pipe length allowable level difference and allowable length after branching as indicated below Three patterns will be discussed including VRV DX indoor units combined with Hydrobox units or RA DX indoor units Example Description Example 2 1 Multi outdoor Branch with refnet joint Definitions Term Definition Multi outdoor F Actual pip
70. V system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 51 10 Troubleshooting Main code Sub code Cause Solution Master Slave 1 Slave 2 Jo 0 Low pressure sensor malfunction Check connection on PCB or actuator S1NPL open circuit ATP X31A 0 7 09 ii Low pressure sensor malfunction Check connection on PCB or actuator S1NPL short circuit A1P X31A LU 19 Transmission outdoor unit inverter Check connection INV1 transmission trouble ATP X20A X28A X40A 184 Transmission outdoor unit inverter Check connection FAN1 transmission trouble ATP X20A X28A X40A eHu Transmission outdoor unit inverter Check connection FAN2 transmission trouble ATP X20A X28A X40A 30 Transmission outdoor unit inverter Check connection INV2 transmission trouble A1P X20A X28A X40A PI 0 t O2 03 INV1 unbalanced power supply Check if power supply is within range voltage 01 08 09 INV2 unbalanced power supply Check if power supply is within range voltage ui D t 05 0q Reversed power supply phase Correct phase order malfunction 04 0h 08 Reversed power supply phase Correct phase order malfunction ue 0O t 08 INV1 voltage power shortage Check if power supply is within range 0g H 4g INV1 power phase loss Check if power supply is withi
71. XYQ12 Minimum circuit ampere of the RXYQ8 16 1 Minimum circuit ampere of the RXYQ10 22 0 A Minimum circuit ampere of the RXYQ12 24 0 A Accordingly the minimum circuit ampere of the RXYQ30 16 1 22 0 24 0 62 1 Multiplying the above result by 1 1 62 1 1 1 68 31 A So the recommended fuse capacity would be 80 A NOTICE When using residual current operated circuit breakers be sure to use a high speed type 300 mA rated residual operating current 6 Installation 6 1 Overview Installation This chapter describes what you have to do and know on site to install the system It contains information about Opening the units Mounting the outdoor unit Connecting the refrigerant piping Checking the refrigerant piping Charging refrigerant Connecting the electrical wiring 6 2 Opening the units 6 2 1 To open the outdoor unit DANGER RISK ELECTROCUTION DANGER RISK OF BURNING To gain access to the unit front plates need to be opened as follows 8 12 HP 14 20 HP RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 19 6 Installation Once the front plates open the electrical component box can be accessed See 6 2 2 To open the electrical component box of the outdoor unit on page 20 For service purposes the push bu
72. XYQ14 20 d d i e e i j M 1 Wi MF J t d RSTo 1507 9 RIT i h m c i lo 51 1 STNPH Z i R3T u HPS J k k HPS S1PH S2PH R21T0 0 iexm iexn f ar bi INV 0887 V p Mic M2C 10 12 sla r HN Compressor M1C Compressor M2C Heat exchanger Fan Fan motor M1F M2F Accumulator Expansion valve main Y1E Expansion valve subcool heat exchanger Y2E Expansion valve storage vessel Y3E Subcool heat exchanger Oil separator Solenoid valve oil accumulator Y2S Solenoid valve oil1 Y3S Solenoid valve oil2 Y4S 4 way valve main Y1S 4 way valve sub Y5S Electrical component box Service port refrigerant charge Stop valve liquid Stop valve gas Stop valve equalising gas Heat accumulation element Service port co n4n0oos5S83 x
73. XYQ8 20T7Y1B DAIKIN Installer and user reference guide VRV IV system air conditioner 63 4P370475 1 2014 02 12 Technical data Components and piping diagram RYYQ14 20 RIT d d w 2 1 Bt 4 RSTO 4 3 4 3 0 ReT E RIT gt h v L p l im S1NPL SINPH 1 OR3T HPS k k HPS S1PH S2PH R21T 0 08227 p T INV 0 INV 10 12HP MC Mac x t HS r HN Compressor 1 Compressor M2C Heat exchanger Fan Fan motor M1F M2F Accumulator Expansion valve main Y1E Expansion valve subcool heat exchanger Y2E Expansion valve storage vessel Y3E Subcool heat exchanger Oil separator Solenoid valve oil accumulator Y2S Solenoid valve oil1 Y3S Solenoid valve oil2 4
74. a Fixto the indicated plastic brackets using field supplied clamping material b Wiring between the units indoor outdoor F 1 F2 left Internal transmission wiring 01 02 d Plastic bracket e Field supplied clamps 6 8 6 The wiring from the indoor units must be connected to the F1 F2 In Out terminals on the PCB in the outdoor unit To connect the transmission wiring Tightening torque of the transmission wiring terminals Screw size M3 5 A1P Tightening torque N m 0 80 0 96 In case of single outdoor unit installation TO IND UNIT TO OUTID UNIT TO MULTI UNIT Outdoor unit PCB A1P Use the conductor of sheathed wire 2 wire no polarity Terminal board field supply Indoor unit Outdoor unit In case of multi outdoor unit installation a b EN NEN F1 F2 F1 F2Q1 Q2 01102 Q1 Q2 t elele 4 d f d d a UnitA master outdoor unit b UnitB slave outdoor unit RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 35 6 Installation Unit C slave outdoor unit Master slave transmission Q1 Q2 Outdoor indoor transmission F1 F2
75. advice about the impact of these settings see 7 3 Energy saving and optimum operation on page 43 2 12 Enable the low noise function and or power consumption limitation via external control adaptor DTA104A61 62 If the system needs to be running under low noise operation or under power consumption limitation conditions when an external signal is sent to the unit this setting should be changed This setting will only be effective when the optional external control adaptor 0 default Deactivated 1 Activated 2 20 Manual additional refrigerant charge In order to add the additional refrigerant charge amount in a manual way without automatic refrigerant charging functionality following setting should be applied Further instructions regarding the different ways to charge additional refrigerant into your system can be found in chapter 6 7 2 About charging refrigerant on page 27 DTA104A61 62 is installed 2 12 Description 0 default Deactivated 1 Activated 2 14 Input additional refrigerant amount that was charged In case you want to use the automatic leak detection functionality it is required to input the total additional refrigerant charge amount 2 20 Description 0 default Deactivated 1 Activated To stop the manual additional refrigerant charge operation when the required additional refrigerant amount
76. alled protection devices are of the size and type specified the chapter 5 4 2 Safety device requirements on page 19 Be sure that neither a fuse nor a protection device has been bypassed Internal wirin 9 Visually check the electrical component box and the inside of the unit on loose connections or damaged electrical components Pipe size and pipe insulation Be sure that correct pipe sizes are installed and that the insulation work is properly executed Stop valves Be sure that the stop valves are open on both liquid gas side Damaged equipment 9 Check the inside of the unit on damaged components squeezed pipes Refrigerant leak 9 Check the inside of the unit on refrigerant leakage If there is a refrigerant leak try to repair the leak If the repair is unsuccessful call your local dealer Do not touch any refrigerant which has leaked out from refrigerant piping connections This may result in frostbite Oil leak Check the compressor for leakage If there is leak try to repair the leak If the repairing is unsuccessful call your local dealer Air inlet outlet Check that the air inlet and outlet of the unit is not obstructed by paper sheets cardboard or any other material Additional refrigerant charge The amount of refrigerant to be added to the unit shall be written on the included Added refrigerant plat
77. amount of refrigerant to be added using the formula mentioned in 6 7 3 To determine the additional refrigerant amount on page 27 The first 10 kg of additional refrigerant can be pre charged without outdoor unit operation If Then The additional refrigerant amount Perform steps 3 4 is smaller than 10 kg The additional refrigerant charge Perform steps 3 6 is larger than 10 kg 3 Pre charging can be done without compressor operation by connecting the refrigerant bottle to the service ports of the liquid and equalising stop valves open valve B Make sure that valve A and all outdoor unit stop valves are closed NOTICE During pre charging the refrigerant is charged through the liquid line Close valve A and disconnect the manifold from the gas line The equalising line is ONLY charged to break the vacuum Charge it to maximally 0 05 MPa then close valve C and disconnect its connection to the manifold Continue pre charging through the liquid line only Installer and user reference guide 30 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 6 Installation Pressure reducing valve Nitrogen Weighing scales Refrigerant R410A tank siphon system Vacuum pump Liquid line stop valve Gas line stop valve Equalising line stop valve only for RYMQ Valve A Valve B Valve C Valve D OOU P P zuo onBjocon 4 Doo
78. and replacement cycle needs to be considered in following situations The unit is used in locations where Heat and humidity fluctuate out of the ordinary Power fluctuation is high voltage frequency wave distortion etc the unit cannot be used if power fluctuation is outside the allowable range Bumps and vibrations are frequent Dust salt harmful gas or oil mist such as sulphurous acid and hydrogen sulfide may be present in the air The machine is started and stopped frequently or operation time is long sites with 24 hour air conditioning Recommended replacement cycle of wear parts Component Inspection Maintenance cycle cycle replacements and or repairs Air filter 1 year 5 years High efficiency filter 1 year Fuse 10 years Crankcase heater 8 years Pressure containing parts In case of corrosion contact your local dealer RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 87 19 Troubleshooting NOTICE The table indicates main components Refer to your maintenance and inspection contract for more details The table indicates recommended intervals of replacement cycles However in order to keep the unit operational as long as possible maintenance work may be required sooner Recommended intervals can be used for appropriate maintenance design in terms of budgeti
79. and make proper tightening impossible Over tightening the terminal screws may break them Tightening torque for the terminal screws Screw size Tightening torque 5 5 7 3 8 Power terminal block M8 Ground NOTICE Recommendations when connecting the earth wire Wire it so that it comes through the cut out section of the cup washer An improper earth connection may prevent a good earthing from being achieved The power supply must be clamped to the plastic bracket using field supplied clamp material The green and yellow striped wire must be used for earthing only refer to the figure below Installer and user reference guide 36 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 7 Configuration 8 12 HP DEO OG SS __ gt olelelejs Lo NZ wa amp NS acb h i Power supply 380 415 V 3N 50Hz Fuse Earth leakage protector Earth wire Power supply terminal block Connect each power wire RED to L1 WHT to L2 BLK to L3 and BLU to N Earth wire GRN YLW Clamp the power supply to the plastic bracket using a field supplied clamp to prevent external force
80. and make sure the base under the unit is larger than the grey marked area c ab e 929 729 lt 631 2929 9 mm Hole for foundation bolt Inner dimension of the base Distance between foundation bolt holes Depth of unit Outer dimension of the base Distance between foundation bolt holes Longitudinal foundation dimension Bee 8 12 766 992 14 20 1076 1302 Fasten the unit in place using four foundation bolts M12 It is best to screw in the foundation bolts until their length remains 20 mm above the foundation surface 20mm Installer and user reference guide 20 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 6 Installation NOTICE Prepare a water drainage channel around the foundation to drain waste water from around the unit During heating operation and when the outdoor temperatures are negative the drained water from the outdoor unit will freeze up If the water drainage is not taken care of the area around the unit might be very slippery When installed in a corrosive environment use a nut with plastic washer a to protect the nut tightening part from rust 6 4 Connecting the refrigerant piping 6 4 1 Precautions when connecting refrigerant piping NOTICE Make sure refrigerant piping installation complies with applicable legislation In Europe EN378 is th
81. ar adequate personal protective equipment protective gloves safety glasses when installing maintaining or servicing the system gt WARNING Tear apart and throw away plastic packaging bags so that nobody especially children can play with them Possible risk suffocation gt DANGER RISK OF BURNING Do NOT touch the refrigerant piping water piping or internal parts during and immediately after operation It could be too hot or too cold Give it time to return to normal temperature If you must touch it wear protective gloves gt Do NOT touch any accidental leaking refrigerant NOTICE Provide adequate measures to prevent that the unit can be used as a shelter by small animals Small animals that make contact with electrical parts can cause malfunctions smoke or fire A CAUTION Do NOT touch the air inlet or aluminum fins of the unit NOTICE Do NOT place any objects or equipment on top of the unit Do NOT sit climb or stand on the unit In accordance with the applicable legislation it might be necessary to provide a logbook with the product containing at least information on maintenance repair work results of tests stand by periods Also at least following information must be provided at an accessible place at the product Instructions for shutting down the system in case of an emergency Name and address of fire department police and hospita
82. as Stop valve equalising gas Heat accumulation element Service port INFORMATION Depending on the model type some components in the main component list may not be existing in the unit RYYQ RYMQ RXYQ8 20T7Y1B DAIKIN VRV IV system air conditioner 4P370475 1 2014 02 Installer and user reference guide 57 12 Technical data Components RYMQ8 12 Compressor M1C Compressor M2C Heat exchanger Fan Fan motor M1F M2F Accumulator Expansion valve main Y1E Expansion valve subcool heat exchanger Y2E Expansion valve storage vessel Y3E Subcool heat exchanger Oil separator Solenoid valve oil accumulator Y2S Solenoid valve oil1 Y3S Solenoid valve oil2 Y4S 4 way valve main Y1S 4 way valve sub Y5S Electrical component box Service port refrigerant charge Stop valve liquid Stop valve gas Stop valve equalising gas Heat accumulation element Service port INFORMATION Depending on the model type some components in the main component list may not be existing in the unit lt 3 Installer and user reference guide DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B 58 VRV IV system air conditioner 4P370475 1 20
83. as to be removed Close the hole to avoid small animals or dirt from entering 6 8 9 To connect the power supply NOTICE Never connect the power supply to transmission wiring terminal block Otherwise the entire system may break down INFORMATION Installation and routing in case the cool heat selector is used refer to the installation manual of the cool heat selector CAUTION When connecting the power supply the earth connection must be made before the current carrying connections are established When disconnecting the power supply the current carrying connections must be separated before the earth connection is The length of the conductors between the power supply stress relief and the terminal block itself must be as such that the current carrying wires are tautened before the earth wire is in case the power supply is pulled loose from the stress relief NOTICE Precautions when laying power wiring Do not connect wiring of different thicknesses to the power terminal block slack in the power wiring may cause abnormal heat When connecting wiring which is the same thickness do as shown in the figure below eh a 39 X For wiring use the designated power wire and connect firmly then secure to prevent outside pressure being exerted on the terminal board Use an appropriate screwdriver for tightening the terminal screws A screwdriver with a small head will damage the head
84. ate this setting By activating setting 2 86 the automatic leak detection will be executed depending on the defined value setting The timing for the next automatic refrigerant leak detection is subject to setting 2 85 The automatic leak detection will be executed in 2 85 days Each time when the automatic leak detection function was executed the system will stay idle until it is restarted by manual thermo ON request or by next scheduled action 2 88 Description 0 default Actived 1 Deactived 7 2 9 To connect the PC configurator to the outdoor unit aoa e o 0 a PC b Cable EKPCCAB Outdoor unit main PCB 7 3 Energy saving and optimum operation This VRV IV heat pump system is equipped with advanced energy saving functionality Depending on the priority emphasises can be put on energy saving or comfort level Several parameters can be selected resulting in the optimal balance between energy consumption and comfort for the particular application Several patterns are available and explained below Modify the parameters to the needs of your building and to realize the best balance between energy consumption and comfort No matter which control is selected variations on the behaviour of the system are still possible due to protection controls to keep the unit operating under reliab
85. ation is higher than indoor extension is possible up til 90 m and following 2 conditions must be fulfilled Liquid piping size up see table Size up in E Piping between refrigerant branch kit and indoor unit on page 13 Dedicated setting on outdoor unit is required see 2 49 in 7 2 8 Mode 2 Field settings on page 40 In case the outdoor location is lower than indoor extension is possible up til 90 m and following 6 conditions must be fulfilled 40 60 m minimum connection ratio connected 8096 60 65 m minimum connection ratio connected 9096 65 80 m minimum connection ratio connected 100 80 90 m minimum connection ratio connected 110 Liquid piping size up see table Size up in E Piping between refrigerant branch kit and indoor unit on page 13 Dedicated setting on outdoor unit is required see 2 35 in 7 2 8 Mode 2 Field settings on page 40 H2 330m H3 lt 5 Maximum allowable length after branch The pipe length from the first refrigerant branch kit to the indoor unit lt 40 m Example 1 1 unit 8 b c d e f g ps40 m Example 1 2 unit 6 b h lt 40 m unit 8 itks40 m Example 1 3 unit 8 1 lt 40 m However extension is possible if all below conditions are met In this case limitation can be extended up to 90 m LM
86. ation stops and if the room temperature and humidity are low This is because warm refrigerant gas flows back into the indoor unit and generates steam 19 2 7 Symptom White mist comes out of a unit Indoor unit outdoor unit When the system is changed over to heating operation after defrost operation Moisture generated by defrost becomes steam and is exhausted 19 2 8 Symptom The user interface display reads U4 or U5 and stops but then restarts after a few minutes This is because the user interface is intercepting noise from electric appliances other than the air conditioner The noise prevents communication between the units causing them to stop Operation automatically restarts when the noise ceases 19 2 9 Symptom Noise of air conditioners Indoor unit zeen sound is heard immediately after the power supply is turned on The electronic expansion valve inside an indoor unit starts working and makes the noise Its volume will reduce in about one minute A continuous low shah sound is heard when the system is cooling operation or at a stop When the drain pump optional accessories is in operation this noise is heard pishi pishi squeaking sound is heard when the system stops after heating operation Expansion and contraction of plastic parts caused by temperature change make this noise A low sah choro choro sound is heard while the indoor unit is stopped When another indoor unit is i
87. autions remote gontrol 83 16 3 Using the dry program 83 16 3 1 About the dry program 83 1 1 About the documentation 16 3 2 Touse the dry program WITHOUT cool heat changeover remote control switch 83 The original documentation is written in English All other 16 3 3 To use the dry program WITH cool heat changeover languages are translations emote sieh s pud 84 The precautions described in this document cover very important 16 4 Adjusting the air flow direction rettet tton 84 topics follow them carefully 16 4 1 About the air flow flap 84 16 5 Setting the master user interface 84 All activities described in the installation manual must be 16 5 1 About setting the master user interface 84 performed by an authorized installer 16 5 2 designate the master user interface VRV DX and aiu Au PERROS QE m 85 1 1 1 Meaning of warnings and symbols 16 5 3 To designate the master user interface VRV DX and 85 A DANGER 85 Indicates a situation that results in death or serious injury 17 Energy saving and optimum operation 85 17 1 Available main operation methods 86 422 Available comfort eet eje oben ecc eme oes 86 Indicates a situation that could result in electrocution 18 Maintenance and service 86 DANGER RISK OF BURNING 18 1 Maintenance after a long stop period
88. before test run 6 2 2 To open the electrical component box of the outdoor 8 4 About test run 20 8 5 To perform a test run 6 3 Mounting OntdooP ME ocio LU E oerte rete eno cis 29 8 6 Correcting after abnormal completion of the test run To provide th instalation structure 20 87 the Wil Mm 6 4 Connecting the refrigerant piping 4 6 4 1 Precautions when connecting refrigerant piping 21 6 4 2 About connecting the refrigerant piping 21 6 4 3 To route the refrigerant piping 21 Installer and user reference guide DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B 2 VRV IV system air conditioner 4P370475 1 2014 02 1 General safety precautions 9 Maintenance and service 49 18 4 After sales service and warranty 87 94 va ew Wanene ate GRE er UU spe 49 18 4 1 Warranty period orn iine 87 92 Maintenance safety precautions e 49 18 4 2 Recommended 87 9 2 1 To prevent electrical 50 TRA Mamenadds and ees 9 3 About service mode operation 50 18 4 4 Shortened maintenance and replacement cycles 87 98 3 1 TO use vacuum MOJE sarrun 50 19 Troubleshooting 88 9 3 2 T r cover refrigerant iiit 50 494 Eb eedseChded 88 10 T
89. being applied to the terminal i Clamp field supplied j Cup washer k When connecting the earth wire it is recommended to perform curling sa Multiple outdoor units To connect the power supply for multiple outdoor units to each other ring tongues have to be used No bare cable can be used The ring washer which is standard provided should be removed in that case Attaching both cables to the power supply terminal should be done as indicated L1 L2 L2 N 990 9 7 Configuration 7 1 Overview Configuration This chapter describes what you have to do and know to configure the system after it is installed It contains information about Making field settings Energy saving and optimum operation Using the leak detection function INFORMATION It is important that all information in this chapter is read sequentially by the installer and that the system is configured as applicable DANGER RISK ELECTROCUTION 7 2 Making field settings 7 2 1 About making field settings To continue the configuration of the VRV IV heat pump system it is required to give some input to the PCB of the unit This chapter will describe how manual input is possible by operating the push buttons DIP switches on the PCB and reading the feedback from the 7 segment displays Making settings is done via the master outdoor unit Next to making field settings it is also possible to confirm the
90. cally Refnet joint mounted horizontally i a Caution label X Not allowed O Allowed Make sure that the total length of the piping connected to the joint is absolute straight for more than 500 mm Only if a straight field piping of more than 120 mm is connected more than 500 mm of straight section can be ensured Mm Installer and user reference guide DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B 22 VRV IV system air conditioner 4P370475 1 2014 02 6 Installation 6 4 8 To protect against contamination Protect the piping as described in the following table to prevent dirt liquid or dust from entering the piping Unit Installation period Protection method Outdoor unit gt 1 month Pinch the pipe 1 month Pinch or tape the pipe Indoor unit Regardless of the period Block all gaps in the holes for passing out piping and wiring using sealing material field supply otherwise the capacity of the unit will drop and small animals may enter the machine Example passing piping out through the front E V s a Close the areas marked with routed from the front panel When the piping is Only use clean pipes Hold the pipe end downwards when removing burrs Cover the pipe end when inserting it through a wall to prevent dust and or particles entering the pipe 6 4 9 To braze the pipe end When brazing blow through with nitrogen to prevent creation of large quantities
91. covered from the pinched piping 3 disconnect the charge hose and close the service ports 919 1 27 0 33 0 8mm 22 5 27 5 9254 5 Cut off the lower part of the gas liquid and equalising stop i valve pipes along the black line Use an appropriate tool e g a pipe cutter a pair of nippers Installer and user reference guide DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B 24 VRV IV system air conditioner 4P370475 1 2014 02 6 Installation WARNING e Never remove the pinched piping by brazing Any gas or oil remaining inside the stop valve may blow off the pinched piping 6 Wait until all oil is dripped out before continuing with the connection of the field piping in case the recovery was not complete 6 5 Checking the refrigerant piping 6 5 1 About checking the refrigerant piping Refrigerant piping works are finished No Finish piping work yes The indoor units and or outdoor unit were already powered ON Use procedure No Method 1 Before power ON Y regular method Use procedure Method 2 After power ON It is very important that all refrigerant piping work is done before the units outdoor or indoor are powered on When the units are powered on the expansion valves will initialise This means that they will close Leak test and vacuum drying of field piping and indoor units is impossible when this happens Therefore there
92. ction Remove the knockout holes on the bottom frame and route the piping under the bottom piping 2 2 T 4 NOTICE Be ein to use the supplied accessory pipes when 6 47 connect the refrigerant branching kit carrying out piping work in the field For installation of the refrigerant branching kit refer to the installation Be sure that the field installed piping does not touch manual delivered with the kit other pipes the bottom panel or side panel Especially for the bottom and side connection be sure to protect Mount the refnet joint so that it branches either horizontally or the piping with suitable insulation to prevent it from vertically coming into contact with the casing Mount the refnet header so that it branches horizontally Connection from the stop valves to the field piping can be done by using accessory pipes supplied as accessory The connections to the branch kits are the responsibility of the installer field piping b 6 4 5 To connect the multi connection piping kit NOTICE Improper installation may lead to malfunction of the outdoor unit Install the joints horizontally so that the caution label a attached to the joint comes to the top Do not tilt the joint more than 7 5 see view PO Do not install the joint vertically see view B B a Horizontal surface NEIN b Refnet joint mounted verti
93. d Gas temperature sensor after subcool HE malfunction outdoor JA High pressure sensor malfunction S1NPH EIN Low pressure sensor malfunction S1NPL Li INV PCB abnormal LH Fin temperature abnormal tS Inverter PCB faulty LB Compressor over current detected LH Compressor lock startup EE Transmission outdoor unit inverter INV transmission trouble P INV unbalanced power supply voltage Pe Autocharge operation related PH Fin thermistor malfunction PB Autocharge operation related Autocharge operation related PE Autocharge operation related P Capacity setting malfunction outdoor uc Abnormal low pressure drop faulty expansion valve ul Reversed power supply phase malfunction ue INV voltage power shortage System test run not yet executed Faulty wiring indoor outdoor u5 Abnormal user interface indoor communication Faulty wiring to outdoor outdoor ua Abnormal main sub user interface communication System mismatch Wrong type of indoor units combined Indoor unit malfunction uA Connection malfunction over indoor units or type mismatch ut Centralised address duplication Malfunction in communication centralised control device indoor unit Auto address malfunction inconsistency Auto address malfunction inconsistency 19 2 Symptoms that are not air conditioner troubles Following symptoms are not air conditioner troubles 19 2 1 The air condition
94. d indoor units standard multi free multi combinations Single outdoor Branch with refnet joint and refnet header Actual piping length 165 m 135 m Example 1 1 unit 8 atb c d e f gtps165 m Example 1 2 unit 6 atb hs165 m unit 8 lt 165 m H1 bi Ti k Y Example 1 3 Saytee Wey unit 8 ati d dE of ETE is unit 8 1 lt 165 m 1 12 13 4 5 6 n Example 2 1 Example 1 3 Single outdoor unit 8 a b c d e f g p lt 135 m n Branch with refnet Equivalent length 190 m 160 m M header PEE ey 1 Total piping 1000 m 500 m length Example 1 1 a b c d e f g h i j k I m n p lt 1000 m Example 2 1 a b c d e f g h i j k I m n p lt 500 m RYYQ RYMQ RXYQ8 20T7Y1B DAIKIN Installer and user reference guide VRV IV system air conditioner 4P370475 1 2014 02 15 5 Between outdoor branch and outdoor unit only in case gt 20 HP length Actual piping 10m Example 3 r s 1 lt 10 lt 5 Equivalent length 13 m Maximum allowable height difference H1 lt 50 m 40 m if outdoor is located below indoor units Conditional extension up till 90 m is possible without additional option kit In case the outdoor loc
95. default Mild 2 Quick 3 Powerful For more information and advice about the impact of these settings see 7 3 Energy saving and optimum operation on page 43 2 82 Heating comfort setting This setting is used in conjunction with setting 2 9 2 82 Heating comfort setting 0 Eco 1 default Mild 2 Quick 3 Powerful 2 88 Gathering detailed refrigerant information during test run For more details see 8 4 About test run on page 48 For more information and advice about the impact of these settings see 7 3 Energy saving and optimum operation on page 43 2 83 Master user interface allocation in case VRV DX indoor units and RA DX indoor units are used at the same time By changing setting 2 83 you can allow the VRV DX indoor unit to be the operation mode selector system power OFF ON is required after applying this setting 2 83 Description 0 VRV DX indoor unit has mode selection right 1 default RA DX indoor unit has mode selection right setting 2 85 Automatic leak detection interval time This setting is used in conjunction with setting 2 86 2 85 Time between automatic leak detection executions days 0 default 365 1 180 2 90 3 60 4 30 5 7 6 1 2 86 Automatic leak detection activation When you want to use the automatic leak detection function you have to activ
96. details Installer and user reference guide 40 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 7 Configuration 2 8 T target temperature during cooling operation 2 8 T target 0 default Auto 2 6 3 7 4 8 5 9 6 10 7 11 For more information and advice about the impact of these settings see 7 3 Energy saving and optimum operation on page 43 2 9 T target temperature during heating operation 2 9 T target C 0 default Auto 1 41 3 43 6 46 2 14 Additional amount charged kg 17 80 x 85 18 85 x 90 19 Setting cannot be used Total refrigerant 20 charge has to be 100 kg 21 For details concerning the charging procedure see 6 7 2 About charging refrigerant on page 27 For details concerning the calculation of additional refrigerant charge amount see 6 7 3 To determine the additional refrigerant amount on page 27 For guidance concerning the input of the additional refrigerant charge amount and leak detection function see 7 4 Using the leak detection function on page 46 2 18 Fan high static pressure setting In order to increase the static pressure the outdoor unit fan is delivering this setting should be activated For details about this setting see technical specifications 2 18 Description For more information and
97. door units Model name 2 BHFQ22P1007 3 BHFQ22P1517 Cool heat selector In order to control the cooling or heating operation from a central location the following option can be connected Description Model name Cool heat change over switch KRC19 26A Cool heat change over PCB BRP2A81 With optional fixing box for the KJB111A switch External control adaptor DTA104A61 62 To instruct specific operation with an external input coming from a central control the external control adaptor can be used Instructions group or individual can be instructed for low noise operation and power consumption limitation operation PC configurator cable EKPCCAB For VRV IV heat pump system it is also possible to make several commissioning field settings through a personal computer interface For this option EKPCCAB is required which is a dedicated cable to communicate with the outdoor unit The user interface software is available __http Avww daikineurope com support and manuals software downloads Heater tape kit To keep the drain holes free in cold climates with high humidity you can install a heater tape kit If you do so you also have to install the heater tape PCB kit Description Model name Heater tape kit for 8 12 HP EKBPH012T Heater tape kit for 14 20 HP EKBPHO20T Heater tape PCB kit EKBPHPCBT See also 5 2 2 Additional installation site requirements of the outdoor u
98. e Y1 Phase 3N Frequency 50 Hz Voltage 380 415 V Current Nominal running current RLA 7 2 10 2A 12 7 15 4A 18 0A 20 8A 26 9A Starting current MSC lt MCA Minimum circuit amps MCA 16 1A 22 0A 24 0A 27 0 A 31 0 A 35 0 A 39 0 A Maximum fuse amps MFA 20A 25A 32A 40A 50A Total overcurrent amps TOCA 17 3A 24 6A 35 4 A 35 7 A 42 7 A Full load amps FLA 12 1 3A 1 5A 1 8A 2 6 A Voltage range 380 415 10 V Wiring connections For power supply 5G For connection to indoor unit 2 F1 F2 Power supply intake both indoor and outdoor unit a RLA is based on indoor unit temperature 27 DB and 19 C WB outdoor temperature 35 DB b 5 maximum current during startup of the compressor VRV IV uses only inverter compressors MCA must be used to select the correct field wiring size The MCA can be regarded as the maximum running current c MCA must be used to select the correct field wiring size The MCA can be regarded as the maximum running current d MFA is used to select the circuit breaker and the ground fault circuit interrupter earth leakage circuit breaker e TOCA means the total value of each OC set f FLA nominal running current fan Voltage range units are suitable for use on electrical systems where voltage supplied to unit terminal is not below or above listed range limits Maximum allowable voltage range variation between phases is 296 RYYQ RYMQ RXYQ8 20T7Y1B V
99. e and attached to the rear side of the front cover Installation date and field setting Be sure to keep record of the installation date on the Sticker on the rear of the upper front panel according to EN60335 2 40 and keep record of the contents of the field setting s 8 4 About test run The procedure below describes the test operation of the complete System This operation checks and judges following items Check of wrong wiring communication check with indoor units Check of the stop valves opening Judgement of piping length Gathering reference data for leak detection functionality If the leak detection functionality is required the test run needs to be executed including a detailed refrigerant situation check If the leak detection functionality is NOT required the test run can skip the detailed refrigerant situation check This can be defined by setting 2 88 INFORMATION The refrigerant situation check cannot be performed beyond the following limits Outdoor temperature 0 43 C DB Indoor temperature 20 32 DB Value 2 88 Description 0 The test run will be executed including the detailed refrigerant situation check After the test run the unit will be prepared for leak detection functionality for more details see 7 4 Using the leak detection function on page 46 1 The test run will be executed without the detailed refrigerant situation check After the
100. e applicable standard NOTICE Make sure the field piping and connections are not subjected to stress WARNING During tests NEVER pressurize the product with pressure higher than the maximum allowable pressure as indicated on the nameplate of the unit WARNING Take sufficient precautions in case of refrigerant leakage If refrigerant gas leaks ventilate the area immediately Possible risks Excessive refrigerant concentrations in a closed room can lead to oxygen deficiency Toxic gas may be produced if refrigerant gas comes into contact with fire WARNING Always recover the refrigerants Do NOT release them directly into the environment Use a vacuum pump to evacuate the installation Only use phosphoric acid deoxidised seamless copper NOTICE After all the piping has been connected make sure there is no gas leak Use nitrogen to perform a gas leak detection 6 4 2 About connecting the refrigerant piping Before connecting the refrigerant piping make sure the outdoor and indoor units are mounted Connecting the refrigerant piping involves Routing and connecting the refrigerant piping to the outdoor unit Protecting the outdoor unit against contamination Connecting the refrigerant piping to the indoor units see the installation manual of the indoor units Connecting the multi connection piping kit Connecting the refrigerant branching kit Keeping in
101. e valve A immediately Push BS1 to reset Retry autocharge procedure PE Automatic charging nearly finished Prepare for autocharge stopping Pa Automatic charging finished Finish autocharge mode Leak detection function related E t Unit is not prepared to execute leak Refer to requirements to be able to detection operation execute leak detection operation 2 Indoor unit is out of temperature range Retry when ambient conditions are for leak detection operation satisfied E 3 Outdoor unit is out of temperature Retry when ambient conditions are range for leak detection operation satisfied E H Too low pressure was noticed during Restart leak detection operation leak detection operation E 5 Indicates an indoor unit which is not Refer to requirements to be able to execute leak detection operation 11 Disposal Dismantling of the unit and treatment of the refrigerant oil and other parts must comply with the applicable legislation RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 53 12 Technical data 12 Technical data 12 4 Overview Technical data This chapter contains information about Dimensions Service space Components Piping diagram Wiring diagram Technical specifications Capacity table 12 2 Dimensions Outdoor unit
102. ead out the 7 segment display s To access you can remove the front inspection cover of the front plate see figure Now you can open the inspection cover of the electrical component box front plate see figure You can see the three push buttons and the 3 7 segment displays and DIP switches a Service cover b Main PCB with 3 7 segment displays and 3 push buttons Electrical component box service cover Operate the switches and push buttons with an insulated stick such as a closed ball point pen to avoid touching of live parts eer Make sure to re attach the inspection cover into the electronic component box cover and to close the front plate s inspection cover after the job is finished During operation of the unit the front plate of the unit should be attached Settings are still possible to be made through the inspection opening NOTICE Make sure that all outside panels except for the service cover on the electrical component box are closed while working Close the lid of the electrical component box firmly before turning on the power 7 2 4 To access mode 1 or 2 Initialisation default situation NOTICE Be sure to turn on the power 6 hours before operation in order to have power running to the crankcase heater and to protect the compressor Turn on the power supply of the outdoor unit and all indoor units When the communication between indoor units and outdoor unit s is established and nor
103. eady to operate and is performing a communication check with all indoor units Please wait 12 minutes max till this process is finished 19 2 4 Symptom The fan strength does not correspond to the setting The fan speed does not change even if the fan speed adjustment button in pressed During heating operation when the room temperature reaches the set temperature the outdoor unit goes off and the indoor unit changes to whisper fan speed This is to prevent cold air blowing directly on occupants of the room The fan speed will not change even when another indoor unit is in heating operation if the button is pressed 19 2 5 Symptom The fan direction does not correspond to the setting The fan direction does not correspond with the user interface display The fan direction does not swing This is because the unit is being controlled by the micro computer RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 89 20 Relocation 19 2 6 Symptom White mist comes out of a unit Indoor unit When humidity is high during cooling operation If the interior of an indoor unit is extremely contaminated the temperature distribution inside a room becomes uneven It is necessary to clean the interior of the indoor unit Ask your dealer for details on cleaning the unit This operation requires a qualified service person Immediately after the cooling oper
104. ear Display show 43 and low pressure value with an interval of 1 second Refrigerant will be charged automatically PE charging nearly finished P charging finished OR P kg was added during autocharge R Q P Push BS2 T check will be performed will appear Following codes appear Push BS1 E Z indoor temperature out of Charging is finished range and Fill in the amount on the E 3 outdoor temperature out of additional refrigerant charge range label Push 51 to leave program Input the additional refrigerant Charging is finished amount via setting 2 14 Fill the amount on the Go to test run additional refrigerant charge label Input the additional refrigerant amount via setting 2 14 Goto test run Close valve A Push BS1 to leave program Charging is finished Fill in the amount on the additional refrigerant charge label Input the additional refrigerant amount via setting 2 14 Go to test run owe grey conditions If following codes appear E Z indoor temperature out of range and E 3 outdoor temperature out of range In this case perform automatic charging procedure again 6 7 5 To charge refrigerant Follow the steps as described below and take into account whether you want to use the automatic charge function or not Pre charging refrigerant 1 Calculate the additional
105. eating Continuous heating RXYQ22 RXYQ10 12 RYYQ22 RYMQ10 12 RXYQ24 RXYQ8 16 RYYQ24 RYMQ8 16 RXYQ26 RXYQ12 14 RYYQ26 RYMQ12 14 RXYQ28 RXYQ12 16 RYYQ28 RYMQ12 16 RXYQ30 RXYQ12 18 RYYQ30 RYMQ12 18 RXYQ32 RXYQ16 16 RYYQ32 RYMQ16 16 RXYQ34 RXYQ16 18 RYYQ34 RYMQ16 18 RXYQ36 RXYQ16 20 RYYQ36 RYMQ16 20 RXYQ38 RXYQ8 10 20 RYYQ38 RYMQ8 10 20 RXYQ40 RXYQ10 12 18 RYYQ40 RYMQ10 12 18 RXYQ42 RXYQ10 16 16 RYYQ42 RYMQ10 16 16 RXYQ44 RXYQ12 16 16 RYYQ44 RYMQ12 16 16 RXYQ46 RXYQ14 16 16 RYYQ46 RYMQ14 16 16 RXYQ48 RXYQ16 16 16 RYYQ48 RYMQ16 16 16 The VRV IV heat pump system can be combined with several types of indoor units and is intended for R410A use only For an overview which units are available you can consult the product catalogue for VRV IV An overview is given indicating the allowed combinations of indoor units and outdoor units Not all combinations are allowed They are subject to rules combination between outdoor indoor single outdoor unit use multiple outdoor unit use combinations between indoor units etc mentioned in the technical engineering data 4 5 2 In general following type of indoor units can be connected to a VRV heat pump system The list is non exhaustive and is depending
106. elines 25 Tek 4 6 5 3 Checking refrigerant piping Setup een 25 1 2 4 kaa ree 5 654 To perform a leak test 26 1 3 A 6 655 To perform vacuum drying 26 2 About the documentation 6 6 6 To insulate the refrigerant piping 26 24 About this document 6 Charging reirigerant 20 64 1 Precautions when charging refrigerant 26 6 4 2 About charging refrigerant cette 27 6 7 3 To determine the additional refrigerant amount 27 6 7 4 To charge refrigerant Flow 28 3 Aboutthe box 6 ETS TO charge refrigersin UU uuu asss 30 3 1 Overview About the 6 6 7 6 Step To automatically charge refrigerant 32 Tounpack the outdoor unit esses 7 6 7 7 Step 6b To manually charge refrigerant 33 Yo ema ha aesesencs mendis mil 7 6 7 8 Error codes when charging refrigerant 34 Accessory pipes Diameters 6 7 9 Checks after charging refrigerant 3 5 To remove the transportation 5 8 30 To fix the greenhouse gases Tapel 6 8 Connecting the electrical wiring 4 Aboutthe units and options 8 6 8 1 Precautions when connecting electrical wiring 4 1 Overview About the units and options
107. epending on pipe sizes and pipe lengths some systems require additional charging of refrigerant Only use tools exclusively for the refrigerant type used in the System this to ensure pressure resistance and prevent foreign materials from entering into the system Charge the liquid refrigerant as follows If Then A siphon tube is present Charge with the cylinder upright i e the cylinder is marked with Liquid filling siphon attached A siphon tube is NOT present Charge with the cylinder upside down Charge the refrigerant in liquid form Adding it in gas form may prevent normal operation A CAUTION When the refrigerant charging procedure is done or when pausing close the valve of the refrigerant tank immediately If the tank is left with the valve open the amount of refrigerant which is properly charged may get off point More refrigerant may be charged by any remaining pressure after the unit has stopped Open refrigerant cylinders slowly 1 2 4 Electrical DANGER RISK OF ELECTROCUTION Turn OFF all power supply before removing the Switch box cover connecting electrical wiring or touching electrical parts Disconnect the power supply for more than 1 minute and measure the voltage at the terminals of main circuit capacitors or electrical components before servicing The voltage MUST be less than 50 V DC before you can touch electrical components For the location
108. er Pay attention to the fan It is dangerous to inspect the unit while the fan is running Make sure to turn off the main switch and to remove the fuses from the control circuit located in the outdoor unit 9 3 About service mode operation Refrigerant recovery operation vacuuming operation is possible by applying setting 2 21 Refer to 7 2 Making field settings on page 37 for details how to set mode 2 When vacuuming recovery mode is used check very carefully what should be vacuumed recovered before starting See installation manual of the indoor unit for more information about vacuuming and recovery 10 3 Error codes Overview 9 3 1 To use vacuum mode 1 When the unit is at standstill set the unit in 2 21 7 1 Result When confirmed the indoor and outdoor unit expansion valves will fully open At that moment the 7 segment display indicationzEC and the user interface of all indoor units indicate TEST test operation and external control and the operation will be prohibited 2 Evacuate the system with a vacuum pump 3 Press 53 to stop vacuuming mode 9 3 2 To recover refrigerant This should be done by a refrigerant reclaimer Follow the same procedure as for vacuuming method 10 Troubleshooting 10 1 Overview Troubleshooting This chapter describes what you have to do in case of problems It contains information about Solving problems based on error codes 10 2 Solving problems based o
109. er does not start immediately after the ON OFF button on the user interface is pressed If the operation lamp lights the system is in normal condition To prevent overloading of the compressor motor the air conditioner starts 5 minutes after it is turned ON again in case it was turned OFF just before The same starting delay occurs after the operation mode selector button was used Symptom The system does not operate f Under Centralized Control is displayed on the user interface pressing the operation button causes the display to blink for a few seconds The blinking display indicates that the user interface cannot be used The system does not start immediately after the power supply is turned on Wait one minute until the micro computer is prepared for operation 19 2 2 Symptom Cool Heat cannot be changed over 3 When the display shows 1 change over under centralized control it shows that this is a slave user interface When the cool heat changeover remote control switch is installed and the display shows SA change over under centralized control this is because cool heat changeover is controlled by the cool heat changeover remote control switch Ask your dealer where the remote control switch is installed 19 2 3 Symptom Fan operation is possible but cooling and heating do not work Immediately after the power is turned on The micro computer is getting r
110. erature is allowed to go down to 6 on temporary base depending on the situation In case of heating operation the condense temperature is allowed to go up to 46 on temporary base depending on the situation When the request from the indoor units becomes more moderate the system will eventually go to the steady state condition which is defined by the operation method above To activate this in Change 2 81 2 This setting is used conjunction with setting 2 8 2 82 2 This setting is used in conjunction with setting 2 9 Cooling operation Heating operation 2 8 T target C 3 7 4 8 5 9 6 10 T 11 2 9 T target C 1 41 3 43 Mild Overshoot during heating operation or undershoot during cooling operation is allowed compared to the requested refrigerant temperature in order to achieve the required room temperature very fast The overshoot is not allowed from the start up moment The start up occurs under the condition which is defined by the operation mode above n case of cooling operation the evaporating temperature is allowed to go down to 6 C on temporary base depending on the situation In case of heating operation the condense temperature is allowed to go up to 46 on temporary base depending on the situation Installer and user reference guide 24 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system a
111. erature to different values in order to achieve requested conditions more quickly Powerful Quick Mild Eco m INFORMATION Combinations of Automatic mode together with Hydrobox applications should be considered The effect of the energy saving function can be very small when low high cooling heating leaving water temperatures are requested 18 Maintenance and service NOTICE Never inspect or service the unit by yourself Ask a qualified service person to perform this work WARNING Never replace a fuse with a fuse of a wrong ampere ratings or other wires when a fuse blows out Use of wire or copper wire may cause the unit to break down or cause a fire A CAUTION Do not insert fingers rods or other objects into the air inlet or outlet Do not remove the fan guard When the fan is rotating at high speed it will cause injury CAUTION Pay attention to the fan It is dangerous to inspect the unit while the fan is running Be sure to turn off the main switch before executing any maintenance task A CAUTION After a long use check the unit stand and fitting for damage If damaged the unit may fall and result in injury NOTICE Do not wipe the controller operation panel with benzine thinner chemical dust cloth etc The panel may get discoloured or the coating peeled off If it is heavily dirty soak a cloth in water diluted neutral detergent squeeze it well and
112. erface Check for open doors or windows Shut doors and windows to prevent wind from coming in Check if there are too many occupants in the room during cooling operation Check if the heat source of the room is excessive Check if direct sunlight enters the room Use curtains or blinds Check if the air flow angle is proper If after checking all above items it is impossible to fix the problem yourself contact your installer and state the symptoms the complete model name of the air conditioner with manufacturing number if possible and the installation date possibly listed on the warranty card 19 1 Error codes Overview In case a malfunction code appears on the indoor unit user interface display contact your installer and inform the malfunction code the unit type and serial number you can find this information on the nameplate of the unit For your reference a list with malfunction codes is provided You can depending on the level of the malfunction code reset the code by pushing the ON OFF button If not ask your installer for advice unit number the operation lamp flashes report the malfunction Main code Contents and the malfunction code appears code AG External protection device was activated A 2 If the system does not properly operate except for the above FEPROM failure
113. est operation is automatically carried out the outdoor unit display will indicate m and the indication Test operation and Under centralised control will display on the user interface of indoor units Steps during the automatic system test run procedure Step Description Control before start up pressure equalisation t e Cooling start up control Cooling stable condition Communication check tas Stop valve check tab Pipe length check ED 1 Refrigerant amount check toa In case 2 88 0 detailed refrigerant situation check aq Pump down operation ta Unit stop Note During the test operation it is not possible to stop the unit operation from a user interface To abort the operation press BS3 The unit will stop after 30 seconds 5 Check the test operation results on the outdoor unit 7 segment display Completion Description Normal completion No indication on the 7 segment display idle Indication of malfunction code on the 7 segment display Abnormal completion Refer to 8 6 Correcting after abnormal completion of the test run on page 49 to take actions for correcting the abnormality When the test operation is fully completed normal operation will be possible after 5 minutes 8 6 Correcting after abnormal completion of the test run The test operation is only completed if there is no malfunction code displayed on
114. frigerant can stay since refrigerant is heavier than air To check the maximum concentration level Check the maximum concentration level in accordance with steps 1 to 4 below and take whatever action is necessary to comply 1 Calculate the amount of refrigerant kg charged to each system separately Formula Amount of refrigerant single unit system amount of refrigerant with which the system is charged before leaving the factory B Additional charging amount amount of refrigerant added locally in accordance with the length or diameter of the refrigerant piping Total amount of refrigerant kg in the system NOTICE Where a single refrigerant facility is divided into 2 entirely independent refrigerant systems use the amount of refrigerant with which each separate system is charged 2 Calculate the volume of the room m where the indoor unit is installed In a case such as the following calculate the volume of A B as a single room or as the smallest room A Where there are no smaller room divisions LT B Where there is a room division but there is an opening between the rooms sufficiently large to permit a free flow of air back and forth a Opening between the rooms b Partition Where there is an opening without a door or where there are openings above and below the door which are each equivalent in size to 0 15 or mo
115. frigerant charge can be charged by operating the outdoor unit by means of the automatic refrigerant charge operation mode Depending on the ambient limitation conditions see above the unit will automatically decide which operation mode will be used to fulfill the automatic refrigerant charge cooling or heating If above conditions are fulfilled cooling operation will be selected If not heating Procedure 1 Idle default screen is shown 2 Push 52 once Result Indication S38 3 Push BS2 for more than 5 seconds wait while the unit is preparing for operation 7 segment display indication pressure control is executed If Then Indication Ee till Ee 3 will be displayed start up control waiting stable heating operation Indication EG till EG will be Heating operation is started Cooling operation is outdoor temperature of 0 C DB started displayed start up control waiting If you need to speed up in case of a multiple outdoor stable cooling operation system connect the refrigerant tanks to each outdoor unit RYYQ RYMQ RXYQ8 20T7Y1B DAIKIN Installer and user reference guide VRV IV system air conditioner 4P370475 1 2014 02 31 6 Installation 4 When or 43 starts flashing ready for charging push BS2 within 5 minutes Open valve A If BS2 is not pushed within 5 minutes a malfunction code will appear If Then will be flashing Pu
116. frigerant gas leaks ventilate the area immediately Possible risks Excessive refrigerant concentrations in a closed room can lead to oxygen deficiency Toxic gas may be produced if refrigerant gas comes into contact with fire Installer and user reference guide 4 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 1 General safety precautions WARNING Always recover the refrigerants Do NOT release them directly into the environment Use a vacuum pump to evacuate the installation Only use phosphoric acid deoxidised seamless copper NOTICE After all the piping has been connected make sure there is no gas leak Use nitrogen to perform a gas leak detection NOTICE Refrigerant cannot be charged until field wiring has been completed Refrigerant may only be charged after performing the leak test and the vacuum drying When charging a system care shall be taken that its maximum permissible charge is never exceeded in view of the danger of liquid hammer When the refrigerant system is to be opened refrigerant must be treated according to the applicable legislation To avoid compressor breakdown do not charge the refrigerant more than the specified amount n case re charge is required refer to the nameplate of the unit It states the type of refrigerant and necessary amount The unit is factory charged with refrigerant and d
117. h BS2 5 seconds 4 Leak detection function will start To abort leak detection operation push BS1 Result If manual leak detection was executed the result of leak detection is shown on the outdoor unit 7 segment display Indoor units are in locked state centralised control symbol The result corresponds with the list below To get more detailed information check through mode 1 to know the exact amount To return to normal state push BS1 Display Leaked amount kg LU I 0 lt lt 0 5 Loe 0 5 lt lt 1 Loa 1 lt lt 1 5 Lay 1 5 lt lt 2 Installer and user reference guide 46 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 8 Commissioning Display Leaked amount kg ia 2 lt lt 2 5 2 5 lt lt 3 LOT 3 lt x lt 3 5 Loa 3 5 lt lt 4 LOS 4 lt x lt 4 5 Lig 4 5 lt lt 5 Lii 5 lt x lt 5 5 L de 5 5 lt lt 6 Lid 6 lt lt 6 5 LIH 6 5 lt lt 7 LIS 7 lt lt 7 5 Lib 7 5 lt lt 8 Lid 8 lt lt 8 5 LIB 8 5 lt lt 9 L q 9 lt x lt 9 5 Leg 9 5 lt lt 10 Led 10 lt Information codes Code Description E Unit is not prepared to execute leak detection operation refer to requirements to be able to execute leak detection operation r Indoor unit is out of temperature range for leak detection operation E 3 Outdoor unit is out of
118. harge temperature sensor Check connection on PCB or actuator malfunction R21T short circuit ATP X29A i8 e tt 30 Discharge temperature sensor Check connection on PCB or actuator malfunction R22T open circuit ATP X29A 19 e5 3 1 Discharge temperature sensor Check connection on PCB or actuator malfunction R22T short circuit ATP X29A 7 HH 5 Compressor casing temperature Check connection on PCB or actuator sensor malfunction R8T open circuit A1P X29A 48 50 52 Compressor casing temperature Check connection on PCB or actuator sensor malfunction R8T short circuit A1P X29A 25 1 03 05 Suction temperature sensor Check connection on PCB or actuator malfunction R3T A1P X30A Jb 1 Og 3 De icing temperature sensor Check connection on PCB or actuator malfunction R7T A1P X30A 27 b 1 B Liquid temperature sensor after Check connection on PCB or actuator subcool HE malfunction R5T ATP X30A 28 0 t 02 03 Liquid temperature sensor coil Check connection on PCB or actuator malfunction R4T A1P X30A 4 t O2 03 Gas temperature sensor after subcool Check connection on PCB or actuator HE malfunction R6T 1 X30A JA b BB ID High pressure sensor malfunction Check connection on PCB or actuator S1NPH open circuit A1P X32A 1 09 Sl High pressure sensor malfunction Check connection on PCB or actuator RYYQ RYMQ RXYQ8 20T7Y1B VRV I
119. he air conditioner are necessary within the warranty period contact your dealer and keep the warranty card at hand 18 4 2 Recommended maintenance and inspection Since dust collects when using the unit for several years performance of the unit will deteriorate to some extent As taking apart and cleaning interiors of units requires technical expertise and in order to ensure the best possible maintenance of your units we recommend to enter into a maintenance and inspection contract on top of normal maintenance activities Our network of dealers has access to a permanent stock of essential components in order to keep your air conditioner in operation as long as possible Contact your dealer for more information When asking your dealer for an intervention always state The complete model name of the air conditioner The manufacturing number stated on the nameplate of the unit The installation date The symptoms or malfunction and details of the defect WARNING Do not modify disassemble remove reinstall or repair the unit yourself as incorrect dismantling or installation may cause an electric shock or fire Contact your dealer n case of accidental refrigerant leaks make sure there are no naked flames The refrigerant itself is entirely safe non toxic and non combustible but it will generate toxic gas when it accidentally leaks into a room where combustible air from fan heaters gas cookers etc is presen
120. he operation lamp lights up and the system starts operating 3 Press the air flow direction adjust button only for double flow multi flow corner ceiling suspended and wall mounted Refer to 16 4 Adjusting the air flow direction on page 84 for details To stop 4 Press the ON OFF button on the user interface once again Result The operation lamp goes out and the system stops operating NOTICE Do not turn off power immediately after the unit stops but wait for at least 5 minutes RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 83 16 16 3 3 use the dry program WITH cool heat changeover remote control switch To start 1 Select cooling operation mode with the cool heat changeover remote control switch 2 Press the operation mode selector button on the user interface several times and select program dry operation 3 Press the ON OFF button of the user interface Result The operation lamp lights up and the system starts operating 4 Press the air flow direction adjust button only for double flow multi flow corner ceiling suspended and wall mounted Refer to 16 4 Adjusting the air flow direction on page 84 for details To stop 5 Press the ON OFF button on the user interface once again Result The operation lamp goes out and the s
121. he same position 18 3 About the refrigerant This product contains fluorinated greenhouse gases covered by the Kyoto Protocol Do NOT vent gases into the atmosphere Refrigerant type R410A Global warming potential value 1975 Periodical inspections for refrigerant leaks be required depending on the applicable legislation Please contact your installer for more information Installer and user reference guide 86 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 18 Maintenance and service WARNING The refrigerant in the air conditioner is safe and normally does not leak If the refrigerant leaks in the room contact with a fire of a burner a heater or a cooker may result in a harmful gas Turn off any combustible heating devices ventilate the room and contact the dealer where you purchased the unit Do not use the air conditioner until a service person confirms that the portion where the refrigerant leaks is repaired 18 4 5 Recommended maintenance and inspection cycles Be aware that the mentioned maintenance and replacement cycles do not relate to the warranty period of the components 18 4 After sales service and warranty 18 4 1 This product includes a warranty card that was filled in by the dealer at the time of installation The completed card has to be checked by the customer and stored carefully Warranty period f repairs to t
122. ht difference setting 2 30 2 49 Description 0 default Power consumption limitation level step 1 via the external control adaptor DTA104A61 62 If the system needs to be running under power consumption limitation conditions when an external signal is sent to the unit this setting defines the level power consumption limitation that will be 1 In case the outdoor unit is installed in the highest position indoor units are installed on a lower position than outdoor units and the height difference between the lowest indoor unit and the outdoor unit exceeds 50 m the applied for step1 The level is according to the table setting 2 49 has to be changed to 1 2 30 Power consumption limitation approximately 1 6096 2 6596 3 default 7096 4 7596 5 8096 6 8596 Other changes limitations to the circuit apply for more information see 5 3 5 Piping length VRV DX only on page 15 Installer and user reference guide 42 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 7 Configuration 2 81 Cooling comfort setting This setting is used in conjunction with setting 2 8 2 86 Description 0 default No leak detection planned 1 Leak detection planned once in 2 85 days 2 Leak detection planned every 2 85 days 2 81 Cooling comfort setting 0 Eco 1
123. icable legislation and shall be suitable for refrigerant Use phosphoric acid deoxidised seamless copper for refrigerant Foreign materials inside pipes including oils for fabrication must be lt 30 mg 10 m Temper grade use piping with temper grade in function of the pipe diameter as listed in table below Pipe 0 mm Temper grade of piping material 15 9 O annealed 219 1 1 2H half hard All piping lengths and distances have been taken into consideration see 5 3 4 About the piping length on page 15 Installer and user reference guide 12 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 5 Preparation 5 3 2 To select the piping size Determine the proper size referring to following tables and reference figure only for indication 1 2 VRV DX indoor unit 3 BP box 4 5 RA DX indoor unit a b Indoor branch kit x y Outdoor multi connection kit A B C Piping between outdoor unit and first refrigerant branch kit Choose from the following table in accordance with the outdoor unit total capacity type connected downstream Outdoor unit Piping outer diameter size mm capacity type HP Gas pipe Liquid pipe 8 19 1 9 5 10 22 2 9 5 12 16 28 6 12 7 18 22 28 6 15 9 24 34 9 15 9 26 34 34 9 19 1 36 54 41 3 19 1 D Piping between refrigerant b
124. id in case of using Hydrobox units or AHU They can be found in the installation operation manual of the dedicated unit Latest information can be found in the technical engineering data 16 2 Operating the system 16 2 1 Operation procedure varies according to the combination of outdoor unit and user interface About operating the system To protect the unit turn on the main power switch 6 hours before operation f the main power supply is turned off during operation operation will restart automatically after the power turns back on again 16 22 About cooling heating fan only and automatic operation Changeover cannot be made with a user interface whose display REI shows 5 J change over under centralised control refer to installation and operation manual of the user interface When the display 1 J change over under centralised control flashes refer to 16 5 1 About setting the master user interface on page 84 The fan may keep on running for about 1 minute after the heating operation stops The air flow rate may adjust itself depending on the room temperature or the fan may stop immediately This is not a malfunction 16 2 3 About the heating operation It may take longer to reach the set temperature for general heating operation than for cooling operation The following operation is performed in order to prevent the heating capacity from dro
125. igerant temperature is fixed independent from the situation It corresponds to the standard operation which is known and can be expected from under previous VRV systems Automatic The refrigerant temperature is set depending on the outdoor ambient conditions As such adjusting the refrigerant temperature to match the required load which is also related to the outdoor ambient conditions E g when your system is operating in cooling you do not need as much cooling under low outdoor ambient temperatures e g 25 as under high outdoor ambient temperatures e g 35 C Using this idea the system automatically starts increasing its refrigerant temperature automatically reducing the delivered capacity and increasing the system s efficiency Hi sensible economic cooling heating The refrigerant temperature is set higher lower cooling heating compared to basic operation The focus under high sensible mode is comfort feeling for the customer The selection method of indoor units is important and has to be considered as the available capacity is not the same as under basic operation For details concerning to Hi sensible applications please contact your installer 17 2 Available comfort settings For each of above modes a comfort level can be selected The comfort level is related to the timing and the effort energy consumption which is put in achieving a certain room temperature by temporarily changing the refrigerant temp
126. ing length Pipe length between outdoor and indoor Branch with refnet joint units and refnet header Equivalent piping Pipe length between outdoor and indoor length units Total piping length Total piping length from the outdoor to all indoor units H1 Difference in height between outdoor and Multi outdoor indoor units B h with refnet H2 Difference in height between indoor and i header indoor units H3 Difference in height between outdoor and outdoor units H4 Difference in height between outdoor and BP unit H5 Difference in height between BP unit and Example 3 With standard multi BP unit layout H6 Difference in height between BP unit and RA DX indoor unit a Ifthe system capacity is gt 20 HP re read the first outdoor branch as seen from the indoor unit b Assume equivalent piping length of refnet joint 0 5 m and refnet header 1 m for calculation purposes of equivalent piping length not for refrigerant charge calculations 5 3 5 Piping length VRV DX only For system only containing VRV DX indoor units System setup Example Description Example 1 1 Single outdoor Branch with refnet joint 1 Indoor unit Refnet joint Refnet header 4 Outdoor multi connection piping kit Maximum allowable length Between outdoor an
127. ion shows the current low pressure value and the status indication EL 3 intermittent If the 7 segment display indication user interface of indoor unit shows PE code charging is almost finished When the unit stops operating close valve A immediately and check whether the 7 segment display indication user interface of indoor unit shows 2 This indicates the automatic charging in cooling program was finished successfully mm INFORMATION When the charging amount is little the code may not be displayed but instead the 9 code will be displayed immediately When the required calculated additional refrigerant amount is already charged before PE or P9 indication appears close valve A and wait till is displayed If during the cooling operation for the automatic refrigerant charge the ambient conditions go beyond the allowable for this operation mode the unit will indicate on the 7 segment display in case indoor temperature is out of range or E 3 in case the outdoor temperature is out of range In this case when the additional refrigerant charging was not finished step 6 7 6 Step 6a To automatically charge refrigerant on page 31 has to be repeated When malfunction is detected during the procedure e g in case of closed stop valve a malfunction code will be displayed In that case refer to 10 2 Solving problems based on error codes on page 50 and s
128. ion which is defined by the operation method above To activate this in Change Cooling operation 2 81 3 This setting is used conjunction with setting 2 8 2 82 3 This setting is used in conjunction with setting 2 9 Heating operation Cooling operation 2 8 0 default 2 9 0 default Heating operation Hi sensible economic cooling heating The refrigerant temperature is set higher lower cooling heating compared to basic operation The focus under high sensible mode is comfort feeling for the customer The selection method of indoor units is important and has to be considered as the available capacity is not the same as under basic operation For details concerning to Hi sensible applications please contact your dealer To activate this in Change Cooling operation 2 8 to the appropriate value matching the requirements of the pre designed system containing a high sensible solution Heating operation 2 9 to the appropriate value matching the requirements of the pre designed system containing a high sensible solution Quick Overshoot during heating operation or undershoot during cooling operation is allowed compared to the requested refrigerant temperature in order to achieve the required room temperature very fast The overshoot is allowed from the start up moment In case of cooling operation the evaporating temp
129. ir conditioner 4P370475 1 2014 02 7 Configuration When the request from the indoor units becomes more moderate 7 3 3 the system will eventually go to the steady state condition which is defined by the operation method above The start up condition is different from the powerful and quick comfort setting To activate this in Change Cooling operation 2 81 1 This setting is used in conjunction with setting 2 8 Heating operation 2 82 1 This setting is used in conjunction with setting 2 9 Eco The original refrigerant temperature target which is defined by the operation method see above is kept without any correction unless for protection control To activate this in Change Cooling operation 2 81 0 This setting is used in conjunction with setting 2 8 Heating operation 2 82 0 This setting is used in conjunction with setting 2 9 6 C 3 C A B Example Automatic mode during cooling Il 35 Actual load curve Virtual load curve initial capacity automatic mode F E Virtual target value initial evaporation temperature value automatic mode Required evaporation temperature value Load factor Outside air temperature Evaporating temperature Quick Powerful Mild Room temperature evolution
130. ired to perform power consumption limitation If the system always needs to be running under power consumption 2 25 Description limitation conditions this setting activates and defines the level 1 Level 1 Level 3 Level 2 Level 1 power consumption limitation that will be applied continuously The 2 default Level 2 level is according to the table 3 Level 3 2 32 Restriction reference 2 26 0 default Function not active 1 Follows 2 30 setting Low noise operation start time 2 Follows 2 31 setting This setting is used in conjunction with setting 2 22 2 35 2 26 Start time automatic low noise operation Heldht diff approximately eight difference setting 1 20h00 2 35 Description 2 default 22h00 0 In case the outdoor unit is installed in the 3 24h00 lowest position indoor units are installed on a 2 27 Low noise operation stop time This setting is used in conjunction with setting 2 22 higher position than outdoor units and the height difference between the highest indoor unit and the outdoor unit exceeds 40 m the setting 2 35 should be changed to 0 1 default 2 27 Stop time automatic low noise operation approximately 1 6h00 2 7h00 3 default 8h00 Other changes limitations to the circuit apply for more information see 5 3 5 Piping length VRV DX only on page 15 2 49 Heig
131. is charged push BS3 If this function was not aborted by pushing BS3 the unit will stop its operation after 30 minutes If 30 minutes was not sufficient to add the needed refrigerant amount the function can be reactivated by changing the field setting again 2 14 Additional amount charged kg 0 default No input 1 0 lt lt 5 2 5 lt lt 10 3 10 lt lt 15 4 15 lt lt 20 5 20 lt lt 25 6 25 lt lt 30 7 30 x 35 8 35 x 40 9 40 x 45 10 45 x 50 11 50 x 55 12 55 x 60 13 60 x 65 14 65 x 70 15 70 lt lt 75 16 75 lt lt 80 2 211 Refrigerant recovery vacuuming mode In order to achieve a free pathway to reclaim refrigerant out of the System or to remove residual substances or to vacuum the system it is necessary to apply a setting which will open required valves in the refrigerant circuit so the reclaim of refrigerant or vacuuming process can be done properly 2 21 Description 0 default Deactivated 1 Activated To stop the refrigerant recovery vacuuming mode push BS3 If BS3 is not pushed the System will remain in refrigerant recovery vacuuming mode RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 41 7 Configuration 2 22 Automatic low noise setting and level during night time By changing this setting y
132. it take into account the following Fragile handle the unit with care Keep the unit upright in order to avoid compressor damage Choose on beforehand the path along which the unit is to be brought in Installer and user reference guide 6 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 3 About the box Lift the unit preferably with a crane and 2 belts of at least 8 m long 3 3 To remove the accessories from as shown in the figure below Always use protectors to prevent belt damage and pay attention to the position of the unit s centre the outdoor unit of gravity 14 20 HP a Packaging material b Belt sling Opening d Protector NOTICE Use belt sling of lt 20 mm wide that adequately bears the weight of the unit Aforklift can only be used for transport as long as the unit remains on its pallet as shown above 2 a General safety precautions 3 2 To unpack the outdoor unit b Installation manual and operation manual c Additional refrigerant charge label Relief the unit from its packing material d
133. ith the cool heat changeover switch as follows Cooling operation Heating operation Fan only operation Bx D 7 2 e 29 2 Press the ON OFF button on the user interface Result The operation lamp lights up and the system starts operating To stop 3 Press the ON OFF button on the user interface once again Result The operation lamp goes out and the system stops operating NOTICE Do not turn off power immediately after the unit stops but wait for at least 5 minutes To adjust For programming temperature fan speed and air flow direction refer to the operation manual of the user interface 16 3 Using the dry program 16 3 1 The function of this program is to decrease the humidity in your room with minimal temperature decrease minimal room cooling About the dry program The micro computer automatically determines temperature and fan speed cannot be set by the user interface The system does not go into operation if the room temperature is low lt 20 C 16 3 2 To use the dry program WITHOUT cool heat changeover remote control switch To start 1 Press the operation mode selector button on the user interface several times and select le program dry operation 2 Press the ON OFF button of the user interface Result T
134. itial status Changing the value of the Once mode 2 is selected push BS1 selected setting in mode 2 for more than 5 seconds you select the wanted setting It is done by pushing BS2 Accessing the selected setting s value is done by pushing BS3 1 time Now BS2 is used to select the required value of the selected setting When the required value is selected you can define the change of value by pushing 53 1 time Press BS3 again to start operation according to the chosen value Example Checking the content of parameter 2 18 to define the high static pressure setting of the outdoor unit s fan in this case defined as 2 18 value we want to know change 1 Make sure the 7 segment display indication is as during normal operation default situation when shipped from factory 2 Push BS1 for over 5 seconds Result Mode 2 is accessed bans 3 Push BS2 18 times Result Mode 2 setting 18 is addressed J 4 Push BS3 1 time the value which is returned depending on the actual field situation is the status of the setting In the case of 2 18 default value is 0 which means the function is not active Result Mode 2 setting 18 is addressed and selected return value is the current setting situation 5 To change the value of the setting push BS2 till the required value appears on the 7 segment display indication When achieved define the setting
135. l Name address and day and night telephone numbers for obtaining service In Europe EN378 provides the necessary guidance for this logbook 1 2 2 Installation site Provide sufficient space around the unit for servicing and air circulation Make sure the installation site withstands the unit s weight and vibration Make sure the area is well ventilated Make sure the unit is level Do NOT install the unit in the following places n potentially explosive atmospheres n places where there is machinery that emits electromagnetic waves Electromagnetic waves may disturb the control system and cause malfunction of the equipment n places where there is a risk of fire due to the leakage of flammable gases example thinner or gasoline carbon fibre ignitable dust n places where corrosive gas example sulphurous acid gas is produced Corrosion of copper pipes or soldered parts may cause the refrigerant to leak 1 2 3 Refrigerant NOTICE Make sure refrigerant piping installation complies with applicable legislation In Europe EN378 is the applicable standard NOTICE Make sure the field piping and connections are not subjected to stress WARNING During tests NEVER pressurize the product with a pressure higher than the maximum allowable pressure as indicated on the nameplate of the unit WARNING Take sufficient precautions in case of refrigerant leakage If re
136. le conditions The intentional target however is fixed and will be used to obtain the best balance between energy consumption and comfort depending on the application type Care should be taken about selection procedures and system setups especially when using Hydrobox units The requested leaving water temperature from the Hydrobox has priority over this energy saving control as it is related to the required water temperature RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 43 7 Configuration 7 3 1 Available main operation methods Basic The refrigerant temperature is fixed independent from the situation It corresponds to the standard operation which is known and can be expected from under previous VRV systems To activate this in Change Cooling operation 2 8 2 Heating operation 2 9 6 Automatic The refrigerant temperature is set depending on the outdoor ambient conditions As such adjusting the refrigerant temperature to match the required load which is also related to the outdoor ambient conditions E g when your system is operating in cooling you do not need as much cooling under low outdoor ambient temperatures e g 25 C as under high outdoor ambient temperatures e g 35 C Using this idea the system automatically starts increasing its refrigerant temperature automatically reducing the de
137. leak detection operation see 7 4 Using the leak detection function on page 46 1 34 Shows the remaining days till the next automatic leak detection if automatic leak detection function is activated When the automatic leak detection function was activated through mode 2 settings it is possible to see within how many days the automatic leak detection will be performed Depending on the field Setting chosen the automatic leak detection function can be programmed one time into the future or on perpetual basis Indication is given in remaining days and is between 0 and 365 days 1 35 1 36 1 37 Shows the result of 1 35 The latest automatic leak detection execution 1 36 The 2nd last automatic leak detection operation 1 37 The 3rd last automatic leak detection operation When the automatic leak detection was activated through mode 2 settings it is possible to see what was the last result of the automatic leak detection operation 1 35 1 36 1 37 Description 1 Normal execution of leak detection operation occurred 2 Operation conditions during leak detection operation were not satisfied ambient temperature was not within the limitations 3 Malfunction occurred during leak detection operation If Then the estimated leaked refrigerant amount is displayed in 1 35 1 1 29 1 36 1 1 30 1 37 1 1 31 For more information see 7 4 Using the leak de
138. leak detection operation can be chosen The parameter 2 86 defines whether the leak detection operation is executed one time within 2 85 days or intermittent respecting an interval of 2 85 days Availability of the leak detection function feature requires input of the additional refrigerant charge amount immediately after finishing the charging The input must be executed before performing the test operation NOTICE If a wrong value is input for the additional charged refrigerant weight the accuracy of the leak detection function will decrease INFORMATION The weighed and already recorded amount of additional refrigerant charge not the total amount of refrigerant present in the system must be entered The leak detection function is not available when Hydrobox units or RA DX indoor units are connected to the system When the height difference between indoor units is 250 40 m the leak detection function can not be used 7 4 2 To manually perform a leak detection When the leak detection functionality was initially not required but activation is wanted on a later moment it is required to fulfil below conditions The additional refrigerant charge needs to be inputted in the System s logic The system test run has to be re executed Executing the leak detection function one time at site can also be done by following procedure 1 52 time 2 Push 52 one more time 3 Pus
139. livered capacity and increasing the system s efficiency E g when your system is operating in heating you do not need as much heating under high outdoor ambient temperatures e g 15 C as under low outdoor ambient temperatures e g 5 C Using this idea the system automatically starts decreasing its refrigerant temperature automatically reducing the delivered capacity and increasing the system s efficiency To activate this in Change 7 3 2 Available comfort settings For each of above modes a comfort level can be selected The comfort level is related to the timing and the effort energy consumption which is put in achieving a certain room temperature by temporarily changing the refrigerant temperature to different values in order to achieve requested conditions more quickly Powerful Overshoot during heating operation or undershoot during cooling operation is allowed compared to the requested refrigerant temperature in order to achieve the required room temperature very fast The overshoot is allowed from the start up moment In case of cooling operation the evaporating temperature is allowed to go down to 3 C on temporary base depending on the situation n case of heating operation the condense temperature is allowed to go up to 49 C on temporary base depending on the situation When the request from the indoor units becomes more moderate the system will eventually go to the steady state condit
140. ll field supplied field piping valves are OPEN not outdoor unit stop valves before you start leak test and vacuuming For more information on the state of the valves refer to 6 5 3 Checking refrigerant piping Setup on page 25 6 5 2 Checking refrigerant piping General guidelines Connect the vacuum pump through a manifold to the service port of all stop valves to increase efficiency refer to 6 5 3 Checking refrigerant piping Setup on page 25 NOTICE Use a 2 stage vacuum pump with a non return valve or a solenoid valve that can evacuate to a gauge pressure of 100 7 kPa 5 Torr absolute NOTICE Make sure the pump oil does not flow oppositely into the system while the pump is not working NOTICE Do not purge the air with refrigerants Use a vacuum pump to evacuate the installation 6 5 3 Checking refrigerant piping Setup a Pressure reducing valve b Nitrogen c Weighing scales d Refrigerant R410A tank siphon system e Vacuum pump f Liquid line stop valve g Gasline stop valve h Emqualising line stop valve only for RYMQ A ValveA B ValveB C ValveC D ValveD Valve State of valve Valve A Open Valve B Open Valve C Open Valve D Open Liquid line stop valve Close Gas line stop valve Close Equalising line stop valve Close RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN
141. low figure a Insulation material b Caulking etc 6 7 Charging refrigerant 6 7 1 Precautions when charging refrigerant WARNING Only use R410A as refrigerant Other substances may cause explosions and accidents R410A contains fluorinated greenhouse gases covered by the Kyoto Protocol Its global warming potential value is 1975 Do NOT vent these gases into the atmosphere When charging refrigerant always use protective gloves and safety glasses Installer and user reference guide 26 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 6 Installation NOTICE If the power of some units is turned off the charging procedure cannot be finished properly NOTICE In case of a multiple outdoor system turn on the power of all outdoor units NOTICE Be sure to turn on the power 6 hours before operation in order to have power running to the crankcase heater and to protect the compressor NOTICE If operation is performed within 12 minutes after the indoor and outdoor units are turned on the compressor will not operate before the communication is established in a correct way between outdoor unit s and indoor units NOTICE Before starting charging procedures check if the 7 segment display indication of the outdoor unit ATP PCB is as normal see 7 2 4 To access mode 1 or 2 on page 38 If a malfunction code is present
142. m 8 2 Precautions when commissioning DANGER RISK OF ELECTROCUTION DANGER RISK OF BURNING CAUTION Do not perform the test operation while working on the indoor units gt gt When performing the test operation not only the outdoor unit but the connected indoor unit will operate as well Working on an indoor unit while performing a test operation is dangerous CAUTION Do not insert fingers rods or other objects into the air inlet or outlet Do not remove the fan guard When the fan is rotating at high speed it will cause injury gt Test run is possible for ambient temperatures between 20 and 35 1 INFORMATION Note that during the first running period of the unit required power input may be higher This phenomenon originates from the compressor that requires a 50 hour run elapse before reaching smooth operation and stable power consumption Reason is that the scroll is made out of iron and that it takes some time to smooth the surfaces that make contact NOTICE Be sure to turn on the power 6 hours before operation in order to have power running to the crankcase heater and to protect the compressor e During test operation the outdoor unit and the indoor units will start up Make sure that the preparations of all indoor units are finished field piping electrical wiring air purge See installation manual of the indoor u
143. mal the 7 segment display indication state will be as below default situation when shipped from factory Stage Display When turning on the power supply flashing as indicated First checks on power supply are executed 1 2 min When no trouble occurs lighted as indicated 8 10 min Ready for operation blank display indication as indicated Blinking On When above situation cannot be confirmed after 12 min the malfunction code can be checked on the indoor unit user interface and the outdoor unit 7 segment display Solve the malfunction code accordingly The communication wiring should be checked at first Access BS1 is used to change the mode you want to access Access Action Mode 1 Push BS1 one time 7 segment display indication changes to Mode 2 INFORMATION If you get confused in the middle of the process push BS1 Then it returns to idle situation no indication on 7 segment displays blank refer to 7 2 4 To access mode 1 or 2 on page 38 7 2 5 To use mode 1 Mode 1 is used to set basic settings and to monitor the status of the unit What How Changing and accessing mode 1 is selected push BS1 1 the setting in mode 1 time you can select the wanted setting It is done by pushing BS2 Accessing the selected setting s value is done by pushing BS3 1 time Press BS1 To quit and return to the initial status
144. must be based on the total capacity of the connected indoor units only in case RA DX indoor units are connected Total capacity index Piping outer diameter size mm of connected indoor Gas pipe Liquid pipe units 20 62 12 7 6 4 63 149 15 9 9 5 150 208 19 1 Example Downstream capacity for F capacity index of unit 4 capacity index of unit 5 G Piping between BP unit and RA DX indoor unit Only in case RA DX indoor units are connected Indoor unit capacity Piping outer diameter size mm index Gas pipe Liquid pipe 20 25 30 9 5 6 4 50 12 7 60 9 5 71 15 9 5 3 3 To select refrigerant branch kits Refrigerant refnets For piping example refer to 5 3 2 To select the piping size on page 13 When using refnet joints at the first branch counted from the outdoor unit side choose from the following table in accordance with the capacity of the outdoor unit example refnet joint a INFORMATION Maximum 8 branches can be connected to a header How to choose an outdoor multi connection piping kit Choose from the following table in accordance with the number of outdoor units Number of outdoor units Branch kit name 2 BHFQ22P1007 3 BHFQ22P1517 The RYYQ22 54 models consisting of two or three RYMQ modules require a 3 pipe system There is an additional equalising pipe for such modules in addition to the conventional gas and li
145. n Fan motor M1F M2F Accumulator Expansion valve main Y1E Expansion valve subcool heat exchanger Y2E Expansion valve storage vessel Y3E Subcool heat exchanger Oil separator Solenoid valve oil accumulator Y2S Solenoid valve oil1 Y3S Solenoid valve oil2 Y4S 4 way valve main Y1S 4 way valve sub Y5S Electrical component box Service port refrigerant charge Stop valve liquid Stop valve gas Stop valve equalising gas Heat accumulation element Service port lt 3 o e o INFORMATION Depending on the model type some components in the main component list may not be existing in the unit Installer and user reference guide 60 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 12 Technical data Components RXYQ14 20 f n k m k Compressor M1C Compressor M2C E cR SS Heat exchanger Fan motor M1F M2F Accumulator Expansion valve main Y1E Expansion valve subcool heat exchanger Y2E Expansion valve storage vessel Y3E Subcool heat exchanger Oil separator Solenoid valve oil accumulator Y2S Solenoid valve oil1 Y3S Solenoid valve oil2 Y4S 4 way valve main Y1S 4 way valve sub Y5S Electrical component box Service port refrigerant charge Stop valve liquid Stop valve gas Stop valve equalising gas Heat accumulation element
146. n and confirm indoor unit R407C RA Hydrobox etc mix is allowed Wrong unit combination multi system Check if unit types are compatible HH Wrong unit combination multi system Check if unit types are compatible Installer and user reference guide 52 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 11 Disposal System test run Main code Sub code Cause Solution Master Slave 1 Slave 2 0 1 Auto address malfunction Check if transmission wired unit inconsistency amount matches with powered unit amount by monitor mode or wait till initialisation is finished 1 Auto address malfunction Check if transmission wired unit inconsistency amount matches with powered unit amount by monitor mode or wait till initialisation is finished 5 Stop valve closed or wrong during Open stop valves Auto charging related compatible with leak detection functionality is installed e g RA DX indoor unit Hydrobox Pe Unusual low pressure on suction line Close valve A immediately Push BS1 to reset Check following items before retrying autocharge procedure Check if the gas side stop valve is opened correctly Check if the valve of the refrigerant cylinder is opened Check if the air inlet and outlet of the indoor unit are not obstructed PB Freeze up prevention indoor unit Clos
147. n error codes In case of a displayed malfunction code perform correcting actions as explained in the malfunction code table After correcting the abnormality press BS3 to reset the malfunction code and retry operation The malfunction code which is displayed on the outdoor unit will indicate a main malfunction code and a sub code The sub code indicates more detailed information about the malfunction code The malfunction code will be displayed intermittent Example Code Example Main code IL L Sub code a F I I With an interval of 1 second the display will switch between main code and sub code Main code Sub code Cause Solution Master Slave 1 Slave 2 1 B3 05 High pressure switch was activated Check stop valve situation or S1PH S2PH A1P X4A abnormalities in field piping or airflow over air cooled coil 0g Feet b Refrigerant overcharge Check refrigerant amounttrecharge Stop valve closed Open stop valves 13 dH 45 Stop valve closed liquid Open liquid stop valve IB Refrigerant overcharge Check refrigerant amount recharge Stop valve closed Un Open stop valves Installer and user reference guide 50 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 10 Troubleshooting
148. n operation this noise is heard In order to prevent oil and refrigerant from remaining in the System a small amount of refrigerant is kept flowing 19 2 10 Symptom Noise of air conditioners Indoor unit outdoor unit continuous low hissing sound is heard when the system is cooling or defrost operation This is the sound of refrigerant gas flowing through both indoor and outdoor units hissing sound which is heard at the start or immediately after stopping operation or defrost operation This is the noise of refrigerant caused by flow stop or flow change 19 2 11 Symptom Noise of air conditioners Outdoor unit When the tone of operating noise changes This noise is caused by the change of frequency 19 2 12 Symptom Dust comes out of the unit When the unit is used for the first time in a long time This is because dust has gotten into the unit 19 2 13 Symptom The units can give off odours The unit can absorb the smell of rooms furniture cigarettes etc and then emit it again 19 2 14 Symptom The outdoor unit fan does not spin During operation The speed of the fan is controlled in order to optimise product operation 19 2 15 Symptom The display shows 88 This is the case immediately after the main power supply switch is turned on and means that the user interface is in normal condition This continues for one minute 19 2 16 Symptom The compressor in the outdoor unit does not stop afte
149. n range e5 28 INV2 voltage power shortage Check if power supply is within range ze eh 29 2 power phase loss Check if power supply is within range ua e Warning indication Leak detection or Execute autocharge function see refrigerant amount check not manual unit not ready for leak performed system operation possible detection functionality 3 Malfunction code System test run not Execute system test run yet executed system operation not possible uh s 4 Faulty wiring to Q1 Q2 or indoor Check Q1 Q2 wiring outdoor 3 Faulty wiring to Q1 Q2 or indoor Check Q1 Q2 wiring outdoor g4 System test run abnormal ending Execute test run again 0 1 Warning faulty wiring to Q1 Q2 Check Q1 Q2 wiring SEG Malfunction code faulty wiring to Q1 Check 01 02 wiring Q2 Too many indoor units are Check indoor unit amount and total connected to F1 F2 line capacity connected Bad wiring between outdoor and indoor units uq sii System mismatch Wrong type of Check if other indoor units have indoor units combined R410A malfunction and confirm indoor unit R407C RA Hydrobox etc mix is allowed Indoor unit malfunction uA 3 Connection malfunction over indoor Check if other indoor units have units or type mismatch R410A malfunction and confirm indoor unit R407C RA Hydrobox etc mix is allowed 18 Connection malfunction over indoor Check if other indoor units have units or type mismatch R410A malfunctio
150. ne ofthe following If Then 4a The calculated additional Close valves D and B and refrigerant amount is reached disconnect the manifold by above pre charging connection to the liquid line procedure 4b The total amount of refrigerant could not be charged by pre charging Close valves D and B disconnect the manifold connection to the liquid line and perform steps 5 6 NOTICE The refrigerant charging port is connected to the piping inside the unit The unit s internal piping is already factory charged with refrigerant so be careful when connecting the charge hose After adding the refrigerant do not forget to close the lid of the refrigerant charging port The tightening torque for the lid is 11 5 to 13 9 Nem n order to ensure uniform refrigerant distribution it may take the compressor 10 minutes to start up after the unit has started operation This is not a malfunction 6 Proceed with one of the following 6a 6 7 6 Step 6a To automatically charge refrigerant on page 31 6b 6 7 7 Step 6b To manually charge refrigerant on page 32 m INFORMATION After charging refrigerant Record the additional refrigerant amount on the refrigerant label provided with the unit and attach it to the backside of the front panel Input the additional refrigerant amount into the system via setting 2 14 Perform the test procedure described in 8 Commissioning on
151. ng on page 47 INFORMATION When a malfunction is detected during the procedure e g in case of closed stop valve a malfunction code will be displayed In that case refer to 6 7 8 Error codes when charging refrigerant on page 33 and solve the malfunction accordingly Resetting the malfunction can be done by pushing BS3 The procedure can be restarted from 6 7 7 Step 6b To manually charge refrigerant on page 32 Aborting the manual refrigerant charge is possible by pushing BS3 The unit will stop and return to idle condition Installer and user reference guide 32 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 6 Installation 6 7 8 Error codes when charging refrigerant Sticking instructions are illustrated on the backside of that label 1 Fill in the label as follows E 5 Indicates an indoor unit which is not compatible with leak detection functionality is installed e g RA DX indoor unit Hydrobox Refer to requirements to be able to execute leak detection operation Other Close valve A malfunction immediately Confirm the code malfunction code and take corresponding action 10 2 Solving problems based on error codes on page 50 6 7 9 Checks after charging refrigerant Are all stop valves open s the amount of refrigerant that has been added recorded on the refrigerant charge label
152. ng cooling applications The type of indoor unit which can be used depends on the outdoor units series NOTICE Do not use the air conditioner for other purposes In order to avoid any quality deterioration do not use the unit for cooling precision instruments food plants animals or works of art 13 4 System layout Your VRV IV heat pump series outdoor unit can be one of following models Model Description RYYQ Single continuous heating model RYMQ Multi continuous heating model RXYQ Single and multi non continuous heating model Depending on the type of outdoor unit which is chosen some functionality will or will not exist It will be indicated throughout this operation manual when certain features have exclusive model rights or not NOTICE For future modifications or expansions of your system A full overview of allowable combinations for future System extensions is available in technical engineering data and should be consulted Contact your installer to receive more information and professional advice In general following type of indoor units can be connected to a VRV IV heat pump system not exhaustive list depending on outdoor unit model and indoor unit model combinations VRV direct expansion indoor units air to air applications RA direct expansion indoor units air to air applications Hydrobox air to water applications HXY080 125 only AHU air
153. ng maintenance and inspection fees Contact your dealer for details INFORMATION Damage due to taking apart or cleaning interiors of units by anyone other than our authorised dealers may not be included in the warranty 19 Troubleshooting If one of the following malfunctions occur take the measures shown below and contact your dealer WARNING Stop operation and shut off the power if anything unusual occurs burning smells etc Leaving the unit running under such circumstances may cause breakage electric shock or fire Contact your dealer The system must be repaired by a qualified service person Malfunction Measure If a safety device such as a fuse a breaker or an earth leakage breaker frequently actuates or the ON OFF Switch does not properly work Turn off the main power Switch If water leaks from the unit Stop the operation The operation switch does not work well Turn off the power If the user interface display indicates the Notify your installer and Malfunction Measure The system operates Check if air inlet or outlet of outdoor or but cooling or heating indoor unit is not blocked by obstacles is insufficient Remove obstacle and make it well ventilated Check if the air filter is not clogged refer to Maintenance in the indoor unit manual Check the temperature setting Check the fan speed setting on your user int
154. nit in cold climates on page 11 5 Preparation 5 1 Overview Preparation This chapter describes what you have to do and know before going on site It contains information about Preparing the installation site Preparing the refrigerant piping Preparing the electrical wiring 5 2 Preparing installation site 5 2 1 Installation site requirements of the outdoor unit Provide sufficient space around the unit for servicing and air circulation Make sure the installation site withstands the unit s weight and vibration Make sure the area is well ventilated Make sure the unit is level Select a place where the rain can be avoided as much as possible Select the location of the unit in such a way that the sound generated by the unit does not disturb anyone and the location is selected according the applicable legislation Do NOT install the unit in the following places In potentially explosive atmospheres n places where there is machinery that emits electromagnetic waves Electromagnetic waves may disturb the control system and cause malfunction of the equipment n places where there is a risk of fire due to the leakage of flammable gases example thinner or gasoline carbon fibre ignitable dust In places where corrosive gas example sulphurous acid gas is produced Corrosion of copper pipes or soldered parts may cause the refrigerant to leak n places where a mineral oil mis
155. nits for details RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 47 8 Commissioning 8 3 Checklist before test run After the installation of the unit first check the following items Once all below checks are fulfilled the unit must be closed only then can the unit be powered up Installation Check that the unit is properly installed to avoid abnormal noises and vibrations when starting up the unit Field wiring Be sure that the field wiring has been carried out according to the instructions described in the chapter 6 8 Connecting the electrical wiring on page 33 according to the wiring diagrams and according to the applicable legislation Power supply voltage pply g Check the power supply voltage on the local supply panel The voltage must correspond to the voltage on the identification label of the unit Earth wirin 9 Be sure that the earth wires been connected properly and that the earth terminals are tightened Insulation test of the main power circuit Using a megatester for 500 V check that the insulation resistance of 2 MO or more is attained by applying a voltage of 500 V DC between power terminals and earth Never use the megatester for the transmission wiring Fuses circuit breakers or protection devices Check that the fuses circuit breakers or the locally inst
156. of the terminals see the wiring diagram Do NOT touch electrical components with wet hands Do NOT leave the unit unattended when the service cover is removed WARNING If NOT factory installed a main switch or other means for disconnection having a contact separation in all poles providing full disconnection under overvoltage category 111 condition shall be installed in the fixed wiring WARNING ONLY use copper wires All field wiring must be performed in accordance with the wiring diagram supplied with the product NEVER squeeze bundled cables and make sure they do not come in contact with the piping and sharp edges Make sure no external pressure is applied to the terminal connections Make sure to install earth wiring Do NOT earth the unit to a utility pipe surge absorber or telephone earth Incomplete earth may cause electrical shock Make sure to use a dedicated power circuit NEVER use a power supply shared by another appliance Make sure to install the required fuses or circuit breakers Make sure to install an earth leakage protector Failure to do so may cause electric shock or fire When installing the earth leakage protector make sure it is compatible with the inverter resistant to high frequency electric noise to avoid unnecessary opening of the earth leakage protector Install power cables at least 1 meter away from televisions or radios to prevent interference
157. olve the malfunction accordingly Resetting the malfunction can be done by pushing BS1 The procedure can be restarted from 6 7 6 Step 6a To automatically charge refrigerant on page 31 Aborting the automatic refrigerant charge is possible by pushing BS1 The unit will stop and return to idle condition Perform the test procedure as described in 8 Commissioning on page 47 6 7 7 Step 6b To manually charge refrigerant The remaining additional refrigerant charge can be charged by operating the outdoor unit by means of the manual refrigerant charge operation mode 1 Take all the precautions mentioned in 7 Configuration on page 37 and 8 Commissioning on page 47 into account 2 Turn on the power of the indoor units and outdoor unit Activate outdoor unit setting 2 20 1 to start manual refrigerant charge mode Refer to 7 2 8 Mode 2 Field settings on page 40 for details Result The unit will start operation 4 Valve A can be opened Charging of remaining additional refrigerant can be done 5 When the remaining calculated additional refrigerant amount is added close valve A and push BS3 to stop the manual refrigerant charging procedure INFORMATION The manual refrigerant charge operation will automatically stop within 30 minutes If charging is not completed after 30 minutes perform the additional refrigerant charging operation again 6 Perform the test procedure as described in 8 Commissioni
158. on both outdoor unit model and indoor unit model combinations Possible combinations of indoor units VRV direct expansion DX indoor units air to air applications SA RA Sky Air Residential Air direct expansion DX indoor units air to air applications Further referred to as RA DX indoor units Hydrobox air to water applications HXY080 125 series only AHU air to air applications EKEXV kit EKEQ box are required depending on application Aircurtain air to air applications CYQ CAV Biddle series depending on application RXYQ50 RXYQ16 16 18 RYYQ50 RYMQ16 16 18 RXYQ52 RXYQ16 18 18 RYYQ52 RYMQ16 18 18 RXYQ54 RXYQ18 18 18 RYYQ54 RYMQ18 18 18 4 5 4 Possible options for the outdoor unit 1 INFORMATION Refer to the technical engineering data for the latest option names Refrigerant branching kit Description Model name Refnet header KHRQ22M29H KHRQ22M64H KHRQ22M75H Refnet joint KHRQ22M20T KHRQ22M29T9 KHRQ22M64T KHRQ22M75T For the selection of the optimal branching kit please refer to 5 3 3 To select refrigerant branch kits on page 14 RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 9 5 Outdoor multi connection piping kit Number of out
159. on type insecticide This could cause the chemicals to become deposited in the unit which could endanger the health of those who are hypersensitive to chemicals This operation manual is for the following systems with standard control Before initiating operation contact your dealer for the operation that corresponds to your system type and mark If your installation has a customised control system ask your dealer for the operation that corresponds to your system Operation modes depending on indoor unit type Heating and cooling air to air Fan only operation air to air Heating and cooling air to water Dedicated functions exist depending on the type of indoor unit refer to dedicated installation operation manual for more information 16 Operation 16 1 Operation range Use the system in the following temperature and humidity ranges for safe and effective operation Cooling Heating Outdoor temperature 5 43 C DB 20 21 DB 20 15 5 C WB Indoor temperature 21 32 DB 15 27 DB 14 25 C WB Indoor humidity 80960 a To avoid condensation and water dripping out of the unit If the temperature or the humidity is beyond these conditions safety devices may be put in action and the air conditioner may not operate Above operation range is only valid in case direct expansion indoor units are connected to the VRV IV system Special operation ranges are val
160. or is located below indoor units H2 s15m Maximum allowable length after branch The pipe length from the first refrigerant branch kit to the indoor unit lt 40 m Example 1 unit 8 b c d e f g ps40 m Example 2 unit 6 b hs40 m unit 8 lt 40 m Example 3 unit 8 i40 m unit 2 lt 40 m 5 3 7 Piping length VRV DX and RA DX For system containing VRV DX indoor units and RA DX indoor units System setup Header BP box 1 5 RA DX indoor units 6 7 VRV DX indoor units Actual piping 100 m length Example atb g l lt 100 m Equivalent length 120 m Total piping length 250 m Example a b d g I k c e f h i j lt 250 m a Assume equivalent piping length of refnet joint 0 5 m and refnet header 1 m for calculation purposes Between BP unit and indoor unit Indoor unit capacity index Pipe length 60 2 15m 60 2 12m 71 2 8m Remark Minimum allowable length between outdoor unit and first refrigerant branch kit gt 5 m the refrigerant noise from the outdoor unit can be transmitted Example gt 5 Maximum allowable height difference H1 lt 50 m 40 m if outdoor is located below indoor units H2 s15m H4 lt 40 H5 15m H6 lt 5 Maximum allowable length after branch The pipe length from the first refrigerant branch kit to the indoor unit lt 50 m
161. ormation mentioned in the table below INFORMATION Multi units are standard combinations Model Minimum Recommended circuit ampere fuses RYYQ8 RYMQ8 RXYQ8 16 1A 20A RYYQ10 RYMQ10 RXYQ10 22 0A 25A RYYQ12 RYMQ12 RXYQ12 24 0A 32 RYYQ14 RYMQ14 RXYQ14 27 0 A 32 A RYYQ16 RYMQ16 RXYQ16 31 0 A 40A RYYQ18 RYMQ18 RXYQ18 35 0 A 40A RYYQ20 RYMQ20 RXYQ20 39 0 A 50A RYYQ22 RXYQ22 46 0A 63A RYYQ24 RXYQ24 46 0A 63 A RYYQ26 RXYQ26 51 0A 63 A RYYQ28 RXYQ28 55 0 A 63 A RYYQ30 RXYQ30 59 0A 80A RYYQ32 RXYQ32 62 0A 80A RYYQ34 RXYQ34 66 0 80A RYYQ36 RXYQ36 70 0A 80A RYYQ38 RXYQ38 76 0A 100A RYYQ40 RXYQ40 81 0A 100A RYYQ42 RXYQ42 84 0A 100A RYYQ44 RXYQ44 86 0 A 100A RYYQ46 RXYQ46 89 0A 100A RYYQ48 RXYQ48 93 0 A 125A RYYQ50 RXYQ50 97 0A 125A RYYQ52 RXYQ52 101 0A 125A RYYQ54 RXYQ54 105 0A 125A For all models Phase and frequency 3N 50 Hz Voltage 380 415 V Transmission line section 0 75 1 25 mm maximum length is 1000 m If the total transmission wiring exceeds these limits it may result in communication error For non standard combinations Calculate the recommended fuse capacity Formula Calculate by adding the minimum circuit ampere of each used unit according to the table above multiply the result by 1 1 and select the next higher recommended fuse capacity Example Combining the RXYQ30 by using the RXYQ8 RXYQ10 and R
162. ou activate the automatic low noise operation function of the unit and define the level of operation Depending on the chosen level the noise level will be lowered The start and stop moments for this function are defined under setting 2 26 and 2 27 2 30 Power consumption limitation approximately 90 95 2 22 Description 0 default Deactivated 1 Level 1 Level 3 Level 2 Level 1 2 Level 2 3 Level 3 2 31 Power consumption limitation level step 2 via the external control adaptor DTA104A61 62 If the system needs to be running under power consumption limitation conditions when an external signal is sent to the unit this setting defines the level power consumption limitation that will be applied for step2 The level is according to the table 2 25 Low noise operation level via the external control adaptor If the system needs to be running under low noise operation conditions when an external signal is sent to the unit this setting defines the level of low noise that will be applied This setting will only be effective when the optional external control adaptor DTA104A61 62 is installed and the setting 2 12 was 2 31 Power consumption limitation approximately 1 default 40 2 50 3 55 activated 2 32 Forced all time power consumption limitation operation no external control adaptor is requ
163. ous heating below 15 RXYQ8 RYYQ8 INFORMATION RXYQ10 RYYQ10 all combinations of indoor units are allowed for RAIA guidance see 4 5 2 Possible combinations of indoor RXYQ14 RYYQ14 units on page 9 RXYQ16 RYYQ16 a RXYQ18 RYYQ18 RXYQ20 RYYQ20 m hi o f J celal Ire e c c gE of oH gh 98 VRV IV Heat pump outdoor unit Refrigerant piping VRV direct expansion DX indoor unit VRV LT Hydrobox HXY080 125 BP box required to connect Residential Air RA or Sky Air SA direct expansion DX indoor units Residential Air RA direct expansion DX indoor units User interface dedicated depending on indoor unit type User interface wireless dedicated depending on indoor unit type i Cool Heat changeover remote control switch e gt 4 5 Combining units and options 4 5 1 About combining units and options NOTICE To be sure your system setup outdoor unit indoor unit s will work you have to consult the latest technical engineering data for VRV IV heat pump Possible standard combinations of outdoor units RXYQ22 54 consists of 2 or 3 RXYQ8 20 units RYYQ22 54 consists of 2 or 3 RYMQ8 20 units RYYQ8 20 units cannot be combined RYMQ8 20 units cannot be used as standalone outdoor unit Non continuous h
164. out setting the master user interface a eB eR f fA VRV heat pump outdoor unit VRV direct expansion DX indoor unit c BP box required to connect Residential Air RA or Sky Air SA Direct Expansion DX indoor units d Residential Air RA Direct Expansion DX indoor units e User interface dedicated depending on indoor unit type f Userinterface wireless dedicated depending on indoor unit type When the system is installed as shown in the figure above it is necessary to designate one of the user interfaces as the master user interface The displays of slave user interfaces show Lx J change over under centralised control and slave user interfaces automatically follow the operation mode directed by the master user interface Only the master user interface can select heating or cooling mode Indoor unit master allocation is determined as follows in special cases Case Description VRV DX indoor unit The operation mode is always forced by combined with Hydrobox ithe master user interface of the VRV DX unit indoor unit The Hydrobox unit cannot select the operation mode cooling heating VRV DX indoor units combined with RA DX The operation mode is by default selected by the master user interface of sidere indoor units the RA DX indoor unit Contact your P installer if you wish to know which When operating continuou
165. pping or cold air from blowing Defrost operation In heating operation freezing of the outdoor unit s air cooled coil increases over time restricting the energy transfer to the outdoor unit s coil Heating capability decreases and the system needs to go into defrost operation to be able to deliver enough heat to the indoor units If Then RYYQ or RYMQ The indoor unit will continue heating outdoor unit is operation at a reduced level during defrost installed operation It will guarantee a decent comfort level indoor A heat storage element in the outdoor unit will provide the energy to de ice the outdoor unit s air cooled coil during defrost operation RXYQ outdoor unit is The indoor unit will stop fan operation the installed refrigerant cycle will reverse and energy from inside the building will be used to defrost the outdoor unit coil The indoor unit will indicate defrost operation on the displays e O d Hot start In order to prevent cold air from blowing out of an indoor unit at the start of heating operation the indoor fan is automatically stopped The display of the user interface shows 6 49 it may take some time before the fan starts This is not a malfunction Installer and user reference guide 82 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 16 Operation INFORMATION The heating capacity drops when the outside tempe
166. quid piping This equalising pipe does not exist for RYYQ8 20 or RXYQ8 54 units The equalising pipe connections for the different RYMQ modules are mentioned in below table RYMQ Equalising pipe mm 8 19 1 10 16 22 2 18 20 28 6 Deciding the equalising pipe diameter n case of 3 multi units the connection diameter of outdoor to T joint has to be kept n case of 2 multi units the connection pipe has to have the largest diameter There is never a connection of the equalising pipe with the indoor units Example free multi combination RYMQ8 RYMQ12 RYMQ18 Largest connection is 228 6 RYMQ18 222 2 RYMQ12 and 019 1 RYMQ8 In figure below only equalising pipe is shown Outdoor unit capacity type 2 pipes HP 8 10 KHRQ22M29T9 12 22 KHRQ22M64T 24 54 KHRQ22M75T For refnets joints other than the first branch example refnet joint b select the proper branch kit model based on the total capacity index of all indoor units connected after the refrigerant branch 18 12 8 028 6 mm 022 2 mm 1 Reducers or T joints are field supplied NOTICE Refrigerant branch kits can only be used with R410A 19 1 mm Indoor unit capacity index 2 pipes 200 KHRQ22M20T 200 lt lt 290 KHRQ22M29T9 290 lt lt 640 KHRQ22M64T 2640 KHRQ22M75
167. r a short heating operation This is to prevent refrigerant from remaining in the compressor The unit will stop after 5 to 10 minutes 19 2 17 Symptom The inside of an outdoor unit is warm even when the unit has stopped This is because the crankcase heater is warming the compressor so that the compressor can start smoothly 19 2 18 Symptom Hot air can be felt when the indoor unit is stopped Several different indoor units are being run on the same system When another unit is running some refrigerant will still flow through the unit 20 Relocation Contact your dealer for removing and reinstalling the total unit Moving units requires technical expertise 21 Disposal This unit uses hydrofluorocarbon Contact your dealer when discarding this unit It is required by law to collect transport and discard the refrigerant in accordance with the hydrofluorocarbon collection and destruction regulations Installer and user reference guide 90 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 22 Glossary 22 Glossary Dealer Sales distributor for the product Authorized installer Technical skilled person who is qualified to install the product User Person who is owner of the product and or operates the product Applicable legislation All international European national and local directives laws regulations and or codes that are relevant and applicable for a ce
168. ranch kits Choose from the following table in accordance with the indoor unit total capacity type connected downstream Do not let the connection piping exceed the refrigerant piping size chosen by the general system model name Indoor unit capacity Piping outer diameter size mm index Gas pipe Liquid pipe lt 150 15 9 9 5 150 lt lt 200 19 1 200 lt lt 290 22 2 290 lt lt 420 28 6 12 7 420 lt lt 640 15 9 640 lt lt 920 34 9 19 1 gt 920 41 3 Downstream capacity for E capacity index of unit 1 Downstream capacity for D capacity index of unit 1 capacity index of unit 2 E Piping between refrigerant branch kit and indoor unit Pipe size for direct connection to indoor unit must be the same as the connection size of the indoor unit in case indoor unit is VRV DX indoor or Hydrobox Indoor unit capacity Piping outer diameter size mm index Gas pipe Liquid pipe 15 50 12 7 6 4 63 125 15 9 9 5 200 19 1 250 22 2 When the equivalent pipe length between outdoor and indoor units is 90 m or more the size of the main pipes both gas side and liquid side must be increased Depending on the length of the piping the capacity may drop but even in such a case it is possible to increase the size of the main pipes b Outdoor unit a b Main pipes Increa
169. rature falls If this happens use another heating device together with the unit When using together with appliances that produce open fire ventilate the room constantly Do not place appliances that produce open fire in places exposed to the air flow from the unit or under the unit t takes some time to heat up the room from the time the unit is started since the unit uses a hot air circulating System to heat the entire room f the hot air rises to the ceiling leaving the area above the floor cold we recommend that you use the circulator the indoor fan for circulating air Contact your dealer for details 16 2 4 To operate the system WITHOUT cool heat changeover remote control switch 1 Press the operation mode selector button on the user interface several times and select the operation mode of your choice Cooling operation 36 Heating operation Q9 Fan only operation 2 Press the ON OFF button on the user interface Result The operation lamp lights up and the system starts operating 16 2 5 operate the system WITH cool heat changeover remote control switch Overview of the changeover remote control switch FAN ONLY AIR CONDITIONING SELECTOR SWITCH Set the switch to for fan only operation or to for heating or cooling operation b COOL HEAT CHANGEOVER SWITCH Set the switch to for cooling or to 295 for heating To start 1 Select operation mode w
170. re of the floor area 3 Calculate the refrigerant density using the results of the calculations in steps 1 and 2 above If the result of the above calculation exceeds the maximum concentration level a ventilation opening to the adjacent room shall be made Formula A BsC A Total volume of refrigerant in the refrigerant system B Size of smallest room in which there is indoor unit installed Maximum concentration level kg m 4 Calculate the refrigerant density taking the volume of the room where the indoor unit is installed and the adjacent room Install ventilation openings in the door of adjacent rooms until the refrigerant density is smaller than the maximum concentration level 5 3 Preparing refrigerant piping 5 3 1 Refrigerant piping requirements NOTICE The refrigerant R410A requires strict cautions for keeping the system clean dry and tight Clean and dry foreign materials including mineral oils or moisture should be prevented from getting mixed into the system Tight R410A does not contain any chlorine does not destroy the ozone layer and does not reduce earth s protection against harmful ultraviolet radiation R410A can contribute slightly to the greenhouse effect if it is released Therefore we should take special attention to check the tightness of the installation NOTICE Piping and other pressure containing parts shall comply with the appl
171. ring If operated without thermistor sensor etc the compressor may break down NOTICE The reversed phase protection detector of this product only functions when the product starts up Consequently reversed phase detection is not performed during normal operation of the product e The reversed phase protection detector is designed to stop the product in the event of an abnormality when the product is started up Replace two of the three phases L1 L2 and L3 during reverse phase protection abnormality NOTICE Only applicable if the power supply is three phase and the compressor has an ON OFF starting method If there exists the possibility of reversed phase after a momentary black out and the power goes on and off while the product is operating attach a reversed phase protection circuit locally Running the product in reversed phase can break the compressor and other parts 6 8 2 Field wiring Overview Field wiring consists of power supply always including earth and indoor outdoor communication transmission wiring Example a c h h L nb gi 9 c e h e h h h a Field power supply with earth leakage protector b Main switch Earth connection Outdoor unit Indoor unit User interface Power
172. rou bleshooting 50 19 2 Symptoms that not air conditioner troubles 89 10 1 Overview Troubleshooting s 50 19 2 1 Symptom The system does not operate 89 10 2 Solving problems based on error 50 19 2 2 Symptom Cool Heat cannot be changed over 89 10 3 Error codes Overview 50 19 2 3 ie 2 is possible but cooling and RR RR E DLE od 11 Disposal 53 19 24 Symptom The fan strength does not correspond to iB ODIO E O 89 12 Technical data 54 19 2 5 Symptom The fan direction does not correspond to 123 Technica dala eerte e RR PX FRE 54 The e M S 89 12 2 Dimensions Outdoor unit 54 19 2 6 Symptom White mist comes out of a unit Indoor 12 8 Service space Outdoor unit es 55 Clo 90 124 Ouldoor flt icri tret aaa 56 19 2 7 Symptom White mist comes out of a unit Indoor 42 5 Components Electrical component box 62 90 12 6 Piping diagram Outdoor unit 63 19 2 8 Symptom The user interface display reads U4 or jan 2 inte UE E UB and diipic but ihentectors Aliena 75 4125 Te Mision 19 2 9 Symptom Noise of air conditioners Indoor 90 1 Uu Eu TE
173. rtain product or domain Service company Qualified company which can perform or coordinate the required service to the product Installation manual Instruction manual specified for a certain product or application explaining how to install configure and maintain it Operation manual Instruction manual specified for a certain product or application explaining how to operate it Accessories Labels manuals information sheets and equipment that are delivered with the product and that need to be installed according to the instructions in the accompanying documentation Optional equipment Equipment made or approved by Daikin that can be combined with the product according to the instructions in the accompanying documentation Field supply Equipment not made by Daikin that can be combined with the product according to the instructions the accompanying documentation RYYQ RYMQ RXYQ8 20T7Y1B DAIKIN VRV IV system air conditioner 4P370475 1 2014 02 Installer and user reference guide 91 Copyright 2014 Daikin DAIKIN EUROPE N V Zandvoordestraat 300 B 8400 Oostende Belgium 4P370475 1 2014 02
174. s system uses R410A as refrigerant R410A itself is an entirely safe non toxic non combustible refrigerant Nevertheless care must be taken to ensure that air conditioning facilities are installed in a room which is sufficiently large This assures that the maximum concentration level of refrigerant gas is not exceeded in the unlikely event of major leak in the system and this in accordance to the local applicable regulations and standards About the maximum concentration level The maximum charge of refrigerant and the calculation of the maximum concentration of refrigerant is directly related to the humanly occupied space in to which it could leak The unit of measurement of the concentration is kg m the weight in kg of the refrigerant gas in 1 m volume of the occupied space Compliance to the local applicable regulations and standards for the maximum allowable concentration level is required According to the appropriate European Standard the maximum allowed concentration level of refrigerant to a humanly space for R410A is limited to 0 44 kg m RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 11 5 Preparation TI LI a Direction of the refrigerant flow b Room where refrigerant leak has occurred outflow of all the refrigerant from the system Pay special attention to places such as basements etc where re
175. se d First refrigerant branch kit e Indoor unit Size up HP class Piping outer diameter size mm Gas pipe Liquid pipe 8 19 1 22 2 9 5 12 7 10 22 2 25 4 12414 28 6 12 7 15 9 16 28 6 31 8 18 22 15 9 gt 19 1 24 34 90 26 34 34 9 38 1 19 1 22 2 36 54 41 39 If size is NOT available increase is NOT allowed b Increase is NOT allowed The pipe thickness of the refrigerant piping shall comply with the applicable legislation The minimal pipe thickness for R410A piping must be in accordance with the table below Pipe mm Minimal thickness t mm 6 4 9 5 12 7 0 80 15 9 0 99 19 1 22 2 0 80 28 6 0 99 34 9 1 21 41 3 1 43 In case the required pipe sizes inch sizes are not available it is also allowed to use other diameters mm sizes taken the following into account Select the pipe size nearest to the required size Use the suitable adapters for the change over from inch to mm pipes field supply The additional refrigerant calculation has to be adjusted as mentioned in 6 7 3 To determine the additional refrigerant amount on page 27 RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide T3 5 F Piping between refrigerant branch kit and BP unit Pipe size for direct connection on BP unit
176. see 10 2 Solving problems based on error codes on page 50 NOTICE Make sure all connected indoor units are recognised see 1 10 1 38 and 1 39 in 7 2 7 Mode 1 Monitoring settings on page 39 NOTICE Close the front panel before any refrigerant charge operation is executed Without the front panel attached the unit cannot judge correctly whether it is operating properly or not vc In case of maintenance and the system outdoor unit field units does not contain any refrigerant any more e g after refrigerant reclaim operation the unit has to be charged with its original amount of refrigerant refer to the nameplate on the unit by pre charging before the automatic charging function can be started A flow chart is available which gives an overview of the possibilities and actions to be taken see 6 7 4 To charge refrigerant Flow chart on page 28 6 7 3 To determine the additional refrigerant amount NOTICE The refrigerant charge of the system must be less than 100 kg This means that in case the calculated total refrigerant charge is equal to or more than 95 kg you must divide your multiple outdoor system into smaller independent systems each containing less than 95 kg refrigerant charge For factory charge refer to the unit name plate Additional refrigerant to be charged R kg R should be rounded off in units
177. ser reference guide 49 10 Troubleshooting 9 2 1 To prevent electrical hazards When performing service to inverter equipment 1 Do not open the electrical component box cover for 10 minutes after the power supply is turned off 2 Measure the voltage between terminals on the terminal block for power supply with a tester and confirm that the power supply is shut off In addition measure points as shown in the figure below with a tester and confirm that the voltage of the capacitor in the main circuit is less than 50 V DC 8 12 HP zc ez d 0 871 PS LS zd 3 To prevent damaging the PCB touch a non coated metal part to eliminate static electricity before pulling out or plugging in connectors 4 Pull out junction connectors X1A X2A X4A for the fan motors in the outdoor unit before starting service operation on the inverter equipment Be careful not to touch the live parts If a fan rotates due to strong wind it may store electricity in the capacitor or in the main circuit and cause electric shock 5 After the service is finished plug the junction connector back in Otherwise the malfunction code 7 will be displayed on the user interface or on the outdoor unit 7 segment display and normal operation will not be performed For details refer to the wiring diagram labelled on the back of the electrical component box cov
178. sh BS2 to restart the procedure Heating operation Cooling operation Malfunction code 2 will appear Push BS1 to abort and restart the procedure Heating middle 7 segment display indicates Charging will continue the 7 segment display indication intermittently shows the current low pressure value and the status indication r 3 When the remaining additional refrigerant amount is charged close valve A immediately and push BS3 to stop charging operation After BS3 is pushed the ending code will appear When BS2 is pushed the unit will check whether the ambient conditions are favourable to execute the test run Test run including detailed refrigerant status check is required to use the leak detection functionality information see 8 Commissioning on page 47 If Then ED or EGS Push BS1 to finish the automatic appears charging function procedure The ambient conditions are favourable to execute the test run The ambient conditions are NOT favourable to execute the test run Push BS1 to finish the automatic charging procedure INFORMATION In case a malfunction code occurred during this automatic charging procedure the unit will stop and indicate flashing Push BS2 to restart the procedure or E J appears Cooling middle 7 segment display indicates L7 Automatic charging will continue the 7 segment display indicat
179. signate the master user interface VRV DX and RA DX In case VRV DX indoor units and RA DX indoor units are connected or only RA DX indoor units Depending on field setting which was executed on the outdoor unit the right for master selection lies with the VRV DX indoor unit or the RA DX indoor unit see above 1 case the VRV DX indoor unit is assigned as master selector the same procedure as above can be followed 2 In case the RA DX indoor unit is assigned as master selector following procedure can be followed Procedure stop all indoor units VRV DX indoor RA DX indoor units When the system is not operating all indoor units thermo OFF you can define the master RA DX indoor unit by addressing that unit with infrared user interface instruct thermo ON in desired mode The only way to change the master unit is by repeating the previous procedure A cool heat switchover or opposite is only possible by changing the operation mode of the defined master indoor unit In case you want to keep the VRV DX indoor unit user interface as master contact your installer 16 6 About control systems This system provides two other control systems beside individual control system one user interface controls one indoor unit Confirm the following if your unit is of the following control system type Type Description Group control system One user interface controls up to 16 indoor units All indoor units are equally
180. sly at horizontal air flow direction indoor unit type received the master When continuous operation with downward air flow is performed allocation at the time of cooling with a ceiling suspended or a wall mounted unit the micro computer may control the flow direction and then the user interface indication will also change Installer and user reference guide DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B 84 VRV IV system air conditioner 4P370475 1 2014 02 17 Energy saving and optimum operation 16 5 2 designate the master user interface VRV DX and Hydrobox In case only VRV DX indoor units and Hydrobox units are connected to the VRV IV system 1 Press the operation mode selector button of the current master user interface for 4 seconds In case this procedure was not yet performed the procedure can be executed on the first user interface operated Result The display showing change over under centralised control of all slave user interfaces connected to the same outdoor unit flashes 2 Press the operation mode selector button of the controller that you wish to designate as the master user interface Result Designation is completed This user interface is designated as the master user interface and the display showing 5A change over under centralised control vanishes The displays of other user interfaces show NA change over under centralised control 16 5 3 To de
181. so onooconv INFORMATION Depending on the model type some components in the main component list may not be existing in the unit DAIKIN Installer and user reference guide 68 RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 12 Technical data 12 7 Wiring diagram Outdoor unit Refer to the wiring diagram sticker on the unit The abbreviations used are listed below 8 HP POWER SUPPLY QDI BU m INFORMATION The wiring diagram on the outdoor unit is only for the outdoor unit For the indoor unit or optional electrical components refer to the wiring diagram of the indoor unit WIRING DIAGRAM FRONT SIE REAR SIDE RED di ou m fer indoor A outdoor COOLIHEAT SELECTOR OPTIONAL ACCESSORY NOTES TES 1 THIS WIRING DIAGRAM APPLIES ONLY TO THE OUTDOOR UNIT 223 WIRING CI TERMINAL BLOCK CONNECTOR o TERMINAL PROTECTIVE EARTH SREW 3 WHEN USING THE OPTIONAL ADAPTER REFER TO THE INSTALLATION MANUAL OF THE OPTIONAL ADAPTER 4 FOR CONNECTION WIRING TO INDOOR OUTDOOR TRANSMISSION F1 F2 OUTDOOR OUTDOOR TRANSMISSION 1 2 REFER TO THE INSTALLATION MANUAL 5 HOW TO USE 51 3 SWITCH REFER TO SERVICE PRECAUTION LABEL ON EL COMPO BOX COVER 6 WHEN OPERATING DON T SHORTCIRGUIT THE PROTECTION DEVICE SIPH 7 COLORS BLK BLACK RED RED BLU BLUE WHT WHITE
182. stallation in a commercial and light industrial environment When installing take strong winds typhoons or earthquakes into account improper installation may result in the unit turning over Installer and user reference guide 10 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 5 Preparation Take care that in the event of a water leak water cannot cause any damage to the installation space and surroundings When installing the unit in a small room take measures in order to keep the refrigerant concentration from exceeding allowable safety limits in the event of a refrigerant leak refer to About safety against refrigerant leaks on page 11 A CAUTION Excessive refrigerant concentrations in a closed room can lead to oxygen deficiency Be sure that the air inlet of the unit is not positioned towards the main wind direction Frontal wind will disturb the operation of the unit If necessary use a screen to block the wind Ensure that water cannot cause any damage to the location by adding water drains to the foundation and prevent water traps in the construction 5 2 2 Additional installation site requirements of the outdoor unit in cold climates NOTICE When operating the unit in a low outdoor ambient temperature be sure to follow the instructions described below In heavy snowfall areas it is very important to select an installation site where
183. supply wiring sheathed cable 230 V Transmission wiring sheathed cable 16 V Power supply 3N 50 Hz Power supply 1 50 Hz Earth wiring me gt o 6 8 3 About the electrical wiring It is important to keep the power supply and the transmission wiring separated from each other In order to avoid any electrical interference the distance between both wiring should always be at least 25 mm NOTICE Be sure to keep the power line and transmission line apart from each other Transmission wiring and power supply wiring may cross but may not run parallel Transmission wiring and power supply wiring may not touch internal piping except the inverter PCB cooling pipe in order to avoid wire damage due to high temperature piping Firmly close the lid and arrange the electrical wires so as to prevent the lid or other parts from coming loose The transmission wiring outside the unit should be wrapped and routed together with the field piping Field piping can be routed from front or bottom of the unit going left or right Refer to 6 4 3 To route the refrigerant piping on page 21 Be sure to follow the limits below If the unit to unit cables are beyond these limits it may result in malfunction of transmission Maximum wiring length 1000 m Total wiring length 2000 m Maximum inter unit wiring length between outdoor units 30 m Transmission wiring to cool heat selector 500 m
184. t Always have qualified service personnel confirm that the point of leakage has been repaired or corrected before resuming operation Component Inspection Maintenance cycle cycle replacements and or repairs Electric motor 1 year 20 000 hours PCB 25 000 hours Heat exchanger 5 years Sensor thermistor etc 5 years User interface and switches 25 000 hours Drain pan 8 years 20 000 hours 20 000 hours Expansion valve Solenoid valve The table assumes the following conditions of use Normal use without frequent starting and stopping of the unit Depending on the model we recommend not starting and stopping the machine more than 6 times hour Operation of the unit is assumed to be 10 hours day and 2 500 hours year NOTICE The table indicates main components Refer to your maintenance and inspection contract for more details The table indicates recommended intervals of maintenance cycles However in order to keep the unit operational as long as possible maintenance work may be required sooner Recommended intervals can be used for appropriate maintenance design in terms of budgeting maintenance inspection fees Depending on the content of the maintenance and inspection contract inspection and maintenance cycles may in reality be shorter than listed 18 4 4 Shortened maintenance and replacement cycles Shortening of maintenance cycle
185. t spray or vapour may be present in the atmosphere Plastic parts may deteriorate and fall off or cause water leakage In places where the air contains high levels of salt such as that near the ocean NOTICE This is a class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures NOTICE The equipment described in this manual may cause electronic noise generated from radio frequency energy The equipment complies to specifications that are designed to provide reasonable protection against such interference However there is no guarantee that interference will not occur in a particular installation It is therefore recommended to install the equipment and electric wires keeping proper distances away from stereo equipment personal computers etc b e mm Personal computer or radio Fuse Earth leakage protector User interface Indoor unit Outdoor unit 0000 In places with weak reception keep distances of 3 m or more to avoid electromagnetic disturbance of other equipment and use conduit tubes for power and transmission lines A CAUTION Appliance not accessible to the general public install it in a secured area protected from easy access This unit both indoor and outdoor is suitable for in
186. tdoor unit stop valves or keep them closed See 6 7 2 About charging refrigerant on page 27 for more information INFORMATION After opening the stop valve it is possible that the pressure in the refrigerant piping does NOT increase This might be caused by e g the closed state of the expansion valve in the outdoor unit circuit but does NOT present any problem for correct operation of the unit 6 6 To insulate the refrigerant piping After finishing the leak test and vacuum drying the piping must be insulated Take into account the following points Make sure to insulate the connection piping and refrigerant branch kits entirely Be sure to insulate the liquid and gas piping for all units Use heat resistant polyethylene foam which can withstand a temperature of 70 for liquid piping and polyethylene foam which can withstand a temperature of 120 C for gas piping Reinforce the insulation on the refrigerant piping according to the installation environment Ambient Humidity Minimum thickness temperature lt 30 75 to 80 RH 15 mm gt 30 C 280 RH 20 mm Condensation might form on the surface of the insulation f there is a possibility that condensation on the stop valve might drip down into the indoor unit through gaps in the insulation and piping because the outdoor unit is located higher than the indoor unit this must be prevented by sealing up the connections See be
187. tection function on page 46 1 38 1 39 Shows 1 38 The number of RA DX indoor units connected to the system 1 39 The number of Hydrobox HXY080 125 indoor units connected to the system 1 40 1 41 Shows 1 40 The current cooling comfort setting 1 41 The current heating comfort setting See 7 3 Energy saving and optimum operation on page 43 for more details about this setting 7 2 8 Mode 2 Field settings 2 0 Cool Heat selection setting Cool Heat selection setting is used in case the optional Cool Heat selector KRC19 26A and BRP2A81 is used Depending on the outdoor unit setup single outdoor unit setup or multi outdoor unit setup the correct setting should be chosen More details on how to use the Cool Heat selector option can be found in the manual of the Cool Heat selector 2 0 Description 0 default Each individual outdoor unit can select Cool Heat operation by Cool Heat selector if installed or by defining master indoor user interface see setting 2 83 and the operation manual 1 Master unit decides Cool Heat operation when outdoor units are connected in multiple system combination 2 Slave unit for Cool Heat operation when outdoor units are connected in multiple system combination a Itis necessary to use the optional external control adaptor for outdoor unit DTA104A61 62 See the instruction delivered with the adaptor for further
188. test run the unit will NOT be prepared for leak detection functionality m INFORMATION When 2 88 0 the test operation time can take up to 4 hours When 2 88 0 and the test operation was aborted before the end the 4 2 warning code will be visible on the user interface It is possible to operate the system Leak detection function will NOT be available It is advised to re execute the test operation fthe autocharge function was used the unit informs the user in case unfavourable ambient conditions are present to gather detailed refrigerant situation data When this is the case the accuracy of leak detection operation will drop It is advised in such a case to perform the test operation again on another more favourable moment In case no E J information was displayed during the autocharging procedure it is possible to have reliable data gathering during the test operation See ambient limitations in the information table on 6 7 6 Step 6a To automatically charge refrigerant on page 31 In case Hydrobox units or RA DX indoor units are present in the System the pipe length check and the refrigerant situation check will not be performed Installer and user reference guide 48 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 9 Maintenance and service Make sure to carry out the system test operation after the first installation
189. the current field setting value is possible field settings In general normal operation can be resumed without special intervention after changing field settings Some field settings are used for special operation e g 1 time operation recovery vacuuming setting manual adding refrigerant setting etc In such a case it is required to abort the special operation before normal operation can restart It will be indicated in below explanations RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 37 7 Configuration See also 7 2 4 To access mode 1 or 2 on page 38 7 2 5 To use mode 1 on page 38 7 2 6 To use mode 2 on page 39 7 2 7 Mode 1 Monitoring settings on page 39 7 2 8 Mode 2 Field settings on page 40 7 2 2 Field setting components Location of the 7 segment displays buttons and DIP switches a b 00096 EE 8 TITI BS 852 BS3 081 080 P CD BS1 MODE For changing the set mode BS2 SET For field setting BS3 RETURN For field setting 051 052 switches 7 displays b Push buttons 7 2 3 To access the field setting components It is not required to open the complete electronic component box to access the push buttons on the PCB and r
190. tion indoor W time to clean the air filter Refer to 48 Maintenance and service on page Ei PCB malfunction outdoor 86 and Maintenance in the indoor unit Current leakage detector was activated outdoor manual E3 High pressure switch was activated EH Low pressure malfunction outdoor Installer and user reference guide DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B 88 VRV IV system air conditioner 4P370475 1 2014 02 19 Troubleshooting Main code Contents ES Compressor lock detection outdoor Fan motor malfunction outdoor EH Electronic expansion valve malfunction outdoor F3 Discharge temperature malfunction outdoor FH Abnormal suction temperature outdoor Fb Refrigerant overcharge detection HZ High pressure switch malfunction HH Low pressure switch malfunction H1 Fan motor trouble outdoor HH Ambient temperature sensor malfunction outdoor dd Pressure sensor malfunction de Current sensor malfunction 4d Discharge temperature sensor malfunction outdoor 2 Heat exchanger gas temperature sensor malfunction outdoor 25 Suction temperature sensor malfunction outdoor Jb De icing temperature sensor malfunction outdoor did Liquid temperature sensor after subcool HE malfunction outdoor 28 Liquid temperature sensor coil malfunction outdoor 4
191. tly loosen the fixing nut A 2 Remove the transportation stay B as shown in the figure below Tighten the fixing nut A again 12 3 4 About the units and options 4 1 Overview About the units and options This chapter contains information about Identification of the outdoor unit Where the outdoor unit fits in the system layout With which indoor units and options you can combine the outdoor units Which outdoor units have to be used as standalone units and which outdoor units can be combined 4 2 Identification label Outdoor unit Location 8 12 HP 14 20 HP S amp S SS SS SS SS S S ss WIS Model identification Example R Y Y Q 18 T7 Y1B Code Explanation R Outdoor air cooled Y Y Heat pump continuous heating X Heat pump no continuous heating Y Y Pair module only M Multi module only Q Refrigerant R410A 18 Capacity index T7 VRV IV series Y1 Power supply 3N 380 415 V 50 Hz B European market a For RXYQ there is no restriction on use as multi module 4 3 About the outdoor unit This installation manual concerns the VRV IV full inverter driven heat pump system Model line up Model Description RYYQ8 20 Single continuous heating model RYYQ22 549 M
192. to air applications EKEXV kit is required Aircurtain Biddle air to air applications Combination of VRV direct expansion indoor units with RA direct expansion units is allowed Combination of VRV direct expansion indoor units with Hydrobox units is allowed Combination of VRV direct expansion indoor units with RA direct expansion unit s and Hydrobox unit s is NOT allowed In case AHU or Aircurtain are used no Hydrobox may be connected Hydrobox only connection to VRV IV heat pump outdoor unit is not allowed Airhandling unit connection in pair to VRV IV heat pump outdoor unit is supported Airhandling unit connection in multi to VRV IV heat pump outdoor unit is supported even combined with VRV direct expansion indoor unit s Single continuous heating non continuous combinations restrictions exist heating unit Multi continuous heating non continuous heating unit combinations restrictions exist For more specifications see technical engineering data 1 1 BS cL d 5 SD 21 gE g gH nb 98 98 VRV IV Heat pump outdoor unit Refrigerant piping VRV direct expansion DX indoor unit VRV LT Hydrobox HXY080 125 BP box required to connect Residential Air RA or Sky Air SA direct expansion DX indoor units Residential Air RA direct expansion DX indoor units
193. top valve cannot be turned any further stop turning Result The valve is now open To fully open the 219 1 or 225 4 gas line stop valve turn the hexagonal wrench until a torque between 27 and 33 Nem is achieved Inadequate torque may cause leakage of refrigerant and breakage of the stop valve cap NOTICE Pay attention that mentioned torque range is applicable for opening 219 1 and 225 4 gas line stop valves only RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 DAIKIN Installer and user reference guide 23 6 Installation To close the stop valve 1 Remove the stop valve cover 2 Insert a hexagon wrench into the stop valve and turn the stop valve clockwise 3 When the stop valve cannot be turned any further stop turning Result The valve is now closed Closing direction s oje To handle the stop valve cover The stop valve cover is sealed where indicated by the arrow Take care not to damage it After handling the stop valve make sure to tighten the stop valve cover securely For the tightening torque refer to the table below Check for refrigerant leaks after tightening the stop valve cover bt To handle the service port Always use a charge hose equipped with a valve depressor pin since the service port is a Schrader type valve After handling the service port make sure to tighten the service
194. ttons on the main PCB need to be accessed To access these push buttons the electrical component box cover does not need to be opened See 7 2 3 To access the field setting components on page 38 6 2 2 To open the electrical component box of the outdoor unit NOTICE Do not apply excessive force when opening the electronic component box cover Excessive force can deform the cover resulting in entering of water to cause equipment failure NOTICE When closing the electrical component box cover make sure that the sealing material on the lower back side of the cover is not caught and bend towards the inside a c e amp 3 fr x O a Electrical component box cover b Front side c Power supply terminal block d Sealing material e Moisture and dirt could enter X Not allowed O Allowed 6 3 Mounting the outdoor unit 6 3 1 To provide the installation structure Make sure the unit is installed level on a sufficiently strong base to prevent vibration and noise NOTICE When the installation height of the unit needs to be increased do not use stands to only support the corners X Not allowed O Allowed The height of the foundation must at least be 150 mm from the floor In heavy snowfall areas this height should be increased depending on the installation place and condition The unit must be installed on a solid longitudinal foundation steel beam frame or concrete
195. ulti continuous heating model consisting of 2 or 3 RYMQ modules RXYQ8 20 Single non continuous heating model RXYQ22 54 Multi non continuous heating model consisting of 2 or 3 RXYQ modules a The RYYQ models provide continuous comfort during defrost operation Depending on the type of outdoor unit which is chosen some functionality will or will not exist It will be indicated throughout this installation manual and brought to your attention Certain features have exclusive model rights These units are intended for outdoor installation and aimed for heat pump applications including air to air and air to water applications These units have in single use heating capacities ranging from 25 to 63 kW and cooling capacities rating from 22 4 to 56 kW In multi combination the heating capacity can go up till 168 KW and in cooling till 150 kW The outdoor unit is designed to work in heating mode at ambient temperatures from 20 C WB to 15 5 C WB and in cooling mode at ambient temperatures from 5 DB to 43 C DB Installer and user reference guide 8 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 4 About the units and options 4 4 System layout NOTICE Design of the system must not be done at temperatures 4 5 3 Possible combinations of outdoor units Possible standalone outdoor units Non continuous heating Continu
196. units and Hydrobox System setup Example Description Example 1 Branch with refnet joint l Example 2 Branch with refnet joint and refnet header Example 3 Branch with refnet header WM GhY ow 5 6 7 H24 8 1 7 VRV DX indoor units 8 Hydrobox unit HXY080 125 Installer and user reference guide 16 DAIKIN RYYQ RYMQ RXYQ8 20T7Y1B VRV IV system air conditioner 4P370475 1 2014 02 5 Preparation Maximum allowable length Between outdoor and indoor units Maximum allowable length Between outdoor unit and indoor unit Actual piping 135m length Example 1 a b c d e f g p lt 135 m a b c d k lt 135 m Example 2 lt 135 m lt 135 m Example 3 a is135 m lt 135 Equivalent length 160 m Total piping length 300 m Example 3 a b c d e f g h i lt 300 m a Assume equivalent piping length of refnet joint 0 5 m and refnet header 1 m for calculation purposes Maximum allowable height difference on Hydrobox indoor unit H1 550 m 40 m if outdo
197. up prevention Close valve A indoor unit immediately Push BS1 to 6 8 Connecting the electrical wiring reset Retry autocharge rocedure z 6 8 1 Precautions when connecting electrical E 2 Indoor unit is out of Retry when ambient wiring temperature range for leak conditions are satisfied detection operation DANGER RISK OF ELECTROCUTION E J Outdoor unit is out of Retry when ambient temperature range for leak conditions are satisfied detection operation WARNING field wiring and components must be installed by licensed electrician and must comply with the applicable legislation WARNING If NOT factory installed a main switch or other means for disconnection having a contact separation in all poles providing full disconnection under overvoltage category III condition shall be installed in the fixed wiring WARNING ONLY use copper wires All field wiring must be performed in accordance with the wiring diagram supplied with the product NEVER squeeze bundled cables and make sure they do not come in contact with the piping and sharp edges Make sure no external pressure is applied to the terminal connections Make sure to install earth wiring Do NOT earth the unit to a utility pipe surge absorber or telephone earth Incomplete earth may cause electrical shock Make sure to use a dedicated power circuit NEVER use a power supply shared by another appliance Make sure to
198. utting the wires through field supplied protective wire conduits at that location or install suitable field supplied wire nipples or rubber bushings into the knockout holes Knockout hole Burr Remove burrs If there are any possibilities that small animals enter the system through the knockout holes plug the holes with packing materials to be prepared on site 6 8 5 Transmission wiring can be routed through the front side only Fix it to the upper mounting hole 8 12 HP To route and fix the transmission wiring 14 20 HP a Transmission wiring possibility 1 b Transmission wiring possibility 2 Fix to pipe insulation with tie wraps Tie wrap Fix to factory mounted low voltage wiring d Tie wrap a Knockout hole has to be removed Close the hole to avoid small animals or dirt from entering 14 20 HP b E i l DL ND
199. will be explained 2 methods for initial installation leak test and vacuum drying Method 1 Before power ON If the system has not yet been powered on no special action is required to perform the leak test and the vacuum drying Method 2 After power ON If the system has already been powered on apply outdoor unit setting 2 21 1 refer to 7 2 8 Mode 2 Field settings on page 40 This setting will open field expansion valves to guarantee a R410A piping pathway and make it possible to perform the leak test and the vacuum drying NOTICE Make sure that all indoor units connected to the outdoor unit are powered on NOTICE Wait until the outdoor unit has finished the initialisation to apply setting 2 21 Leak test and vacuum drying Checking the refrigerant piping involves Checking for any leakages in the refrigerant piping Performing vacuum drying to remove all moisture air or nitrogen in the refrigerant piping If there is a possibility of moisture being present in the refrigerant piping for example rainwater may have entered the piping first carry out the vacuum drying procedure below until all moisture has been removed All piping inside the unit has been factory tested for leaks Only field installed refrigerant piping needs to be checked Therefore make sure that all the outdoor unit stop valves are firmly closed before performing leak test or vacuum drying NOTICE Make sure that a
200. wipe the panel clean Wipe it with another dry cloth 18 1 Maintenance after a long stop period E g at the beginning of the season Check and remove everything that might be blocking inlet and outlet vents of indoor units and outdoor units Clean air filters and casings of indoor units Contact your installer or maintenance person to clean air filters and casings of the indoor unit Maintenance tips and procedures for cleaning are provided in the installation operation manuals of dedicated indoor units Make sure to install cleaned air filters back in the same position Turn on the power at least 6 hours before operating the unit in order to ensure smoother operation As soon as the power is turned on the user interface display appears 18 2 Maintenance before a long stop period E g at the end of the season Letthe indoor units run in fan only operation for about half a day in order to dry the interior of the units Refer to 16 2 2 About cooling heating fan only and automatic operation on page 82 for details on fan only operation Turn off the power The user interface display disappears Clean air filters and casings of indoor units Contact your installer or maintenance person to clean air filters and casings of the indoor unit Maintenance tips and procedures for cleaning are provided in the installation operation manuals of dedicated indoor units Make sure to install cleaned air filters back in t
201. ystem stops operating NOTICE Do not turn off power immediately after the unit stops but wait for at least 5 minutes 16 4 Adjusting the air flow direction Refer to the operation manual of the user interface 16 41 Aboutthe air flow flap Double flow multi flow units d w multi flow uni Corner units 52 Z 7 Ceiling suspended units Wall mounted units For the following conditions micro computer controls the air flow direction which may be different from the display Cooling Heating When the room temperature is When starting operation lower than the set When the room temperature is temperature higher than the set temperature The air flow direction can be adjusted in one of the following ways The air flow flap itself adjusts its position The air flow direction can be fixed by the user Automatic and desired position Z WARNING Never touch the air outlet or the horizontal blades while the swing flap is in operation Fingers may become caught or the unit may break down NOTICE The movable limit of the flap is changeable Contact your dealer for details only for double flow multi flow corner ceiling suspended and wall mounted Avoid operating in the horizontal direction oO It may cause dew or dust to settle on the ceiling or flap 16 5 Setting the master user interface 16 5 1 Ab

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