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Toshiba HDTC605XL3A1 Computer Drive User Manual

1. N WARNING Option Perform the grounding from the Remote TWO THO option earth terminal in the terminal controle block of th id HWS AMS11E ies of the outdoor Remote ep E Color indentification controll
2. 512 LED indication switching switch 0800 Yellow LED D801 Yellow LED Wn D802 Yellow LED Abnormality indication D803 Yellow LED and other indications i D804 Yellow LED D805 Green LED Energization indication 121 2 LED indication switching SW800 SW803 operation 2 1 Indication switching list Operating SW803 can switch the indications of LED D800 to D804 on the outdoor control board Switch Function and details Abnormality indication Current abnormality SW803 This switch indicates the current abnormality Cor Without an abnormality the lights are off i See 2 2 O Abnormal indication Latest abnormality Latest abnormality including the current one SW803 After the abnormality status is released this setting enables users to see the previous abnormalities Previous abnormality be checked even if the power is once turned off 6 f there is an abnormality now the abnormality details of the current one is displayed zm This setting does not display a
3. heater Hot water cylinder x x heater O Possible X Not possible 1 Hot water supply operation 1 Operation start condition When the HOT WATER remote controller button is pressed and the following operation start condition is met the operation starts TTW lt 38 is detected 2 Operation mode determination An operation mode is determined according to the temperature of TTW sensor Heat pump operation selection 1 2 When TTW lt 38 a zone in the right figure is met the heat pump operation is selected Heater operation selection When 45 lt TTW lt TSC b zone the right figure is met the heater operation is selected Thermostat status OFF selection When TTW 2 TSC H is met the thermostat status OFF is selected TTW sensor Hot water cylinder unit TTW TSC H Temperature set with Thermostat OFF Zone 3 Operation sto Operation stop remote controller The operation stops in the following cases The remote controller gives a stop instruction TTW 2 TSC H is met HP OFF 45 HP H ON 38 C Heat pump operation 1 When the outside temperature is 20 or below the heater operation is selected even if the TTW temperature falls into a zone 2 When Hot water supply and Heating are simultaneously in operation the heater operation may be selected depending on the outside air tempe
4. 34 8 Operational Description rau AIR RRR GRR EE 35 9 Method of Defect 64 9 1 Matters to be confirmed 65 9 1 1 Check the power supply 65 9 1 2 Check for any miswiring of the connection cables between the hydro unit and the aUh ko Lolo Peet oe acer ance te ere 65 9 1 3 About the installation of the temperature 65 9 2 Non defective operation program operation No fault code display 65 9 3 Outline of the determination 1 66 9 3 1 Procedure of defect 66 9 3 2 How to determine from the check code the remote 66 9 3 3 How to cancel a check code on the remote controller 66 9 3 4 How to diagnose by error 67 9 4 Diagnosis flow chart for each error code 74 9 4 1 Hydro unit failure 74 9 4 2 Outdoor Unit Failure
5. 1 Press the ZONE1 2 button and a heating operation ee starts after 3 minutes See display gt pump immediately starts 2 Pressing the ZONE1 2 button again stops the heating operation For cooling trial operation TEMP CAE SELECT SCHEDULE NIGHT ZONE1 2 Nu 9 o TIME DAY STEP DeemirENODE HOT WATERBOOST Ow OO T SET CL TEST FROSTPAOTECTON AUTO TEMP ANTI BACTERIA OO Ok 1 4 2 3 2 Press the ZONE1 2 button and then OPERATE MODE 97 and a cooling operation starts after 3 minutes E co AS The pump immediately starts See display C 3 Pressing the ZONE1 2 button again stops the cooling operation TEMP SELECT SCHEDULE NIGHT ZONE 1 2 HOT WATER o NN 9 ap TIME DAY STEP MODE HOT WATER BOOST ODO SET CL TEST FROSTPROTECTION AUTO TEMP ANTI BACTERIA OO Ce Cs 4 Press TEST 4 on the remote controller to exit the trial operation mode 109 4 Auto Curve Setting FC code setting can make flexible Auto Curve settings Preparation 1 Press the TEST 4 and SET and SELECT buttons at the same time for 4 seconds or longer See
6. 75 C at the set cycle and time both be set with the remote controller FC to start ANTI BACTERIA operation The first auti bacteria operation starts when press the ANTI BACTERIA button and starting time come When the set temperature 75 is reached after the ANTI BACTERIA operation started the set temperature remains another 30 minutes can be set with OB The priority zone determined by the outside temperature selects an operation Hot water heat pump or hot water supply heater The hot water heat pump operation when selected ignores the hot water supply start condition TTW 38 C and forcibly performs a hot water operation During ANTI BACTERIA operation Forcible hot water operation at 75 the hot water set temperature display is not changed If it is changed from the remote controller the normal hot water set temperature will be changed Usual hot water supply operation Set temperature 40 to 75 A Caution During a 75 C hot water supply operation with ANTI BACTERIA the remote controller does not display 75 C Be careful not to burn yourself Output water may be hotter than that displayed on the remote controller Related FC FC No Setting item Default Setting available range 0 Anti bacteria set temperature 75 70 80 Anti bacteria holding time 30 mins 0 60 mins Remote control Anti bacteria start time 22 00 0 00 22 00 O
7. F14 Error TTW sensor failure TTW sensor connector CN214 is connected Correct TTW sensor connection TTW sensor characteristic is normal Replace TTW sensor See characteristic table on page 101 Yes Replace water heat exchange control board F17 Error TFI sensor failure TFI sensor Correct TFI sensor connected TFI sensor characteristic is normal Replace sensor See characteristic table on page 101 Replace water heat exchange control board 87 F18 Error THO sensor failure THO sensor connector CN206 is connected Correct THO sensor connection THO sensor characteristic is normal Replace THO sensor See characteristic table on page 101 Replace water heat exchange control board F19 Error THO sensor detach failure THO sensor is attached to pipe No Attach THO sensor to pipe Yes THO sensor characteristic is normal No See characteristic table on page 101 Replace THO sensor Yes TWO sensor characteristic is normal No See characteristic table on page 101 Replace TWO sensor Yes Replace water heat exchange control board 88 F20 Error TFI detach failure TFI sensor No Attach TFI sensor is attached to pipe to pipe Yes TFI sensor No characteristic is normal Replace sensor S
8. Yes Wiring connection is normal Compressor lead Board side compressor over loaded Yes Deal with or remove causes e Check outdoor control board If defective replace it 91 Outdoor LED Check and Action procedure Check code indication No specific description indicates outdoor unit parts H02 Indication 1 gt Indication 2 gt Com pressor lock It i ower voltage is normal o gt l li 230ACV 23V mprove power line Yes 2 E dies Check and correct da board side wiring connection compressor side reactor power lead Compressor is normal No Yes Refrigerant stays inside No gt DOOR replace it Pul t t N TE TS sensor pulse ulse valve operates 0 i mater valve check normay If defective replace Yes Check outdoor board If defective replace it H04 Indication 1 Indication 2 gt Case thermostat operation e CN609 connector and case No Correct connector thermostat is normal Replace case thermostat
9. 206 216 ooo 4 lt lt a AAA NA ES EX 201 155 le NS wr DY BJ 1 D um THER Jj hr 226 N EEM XE 156 Number of pieces per unit CAN PertNo Description 4402XW 1402XW 802XWH HM3 E HT E 9 M3E 6 201 37500802 CABINET FRONT 1 1 1 1 1 202 37500800 PLATE UP 1 1 1 1 1 203 37500801 SIDE 2 2 2 2 2 204 37500803 DN ASSY 1 1 1 1 1 A 205 37566705 REMOTE CONTROLLER 1 1 1 1 1 206 37546861 PIPE ASSY WATER HEAT EXCHANGER 1 1 1 206 37546862 PIPE ASSY WATER HEAT EXCHANGER 1 1 A 207 37541733 PUMP WATER ASSY 1 1 A 207 37541734 PUMP WATER ASSY 1 1 1 208 37542708 VESSEL EXPANSION 1 1 1 1 1 209 37547757 VALVE PRESSURE RELIEF 1 1 1 1 1 210 37519776 FASTENER QUICK 1 1 1 1 1 211 37547756 _ VALVE AIR VENT 1 1 1 1 1 212 37543706 METER PRESSURE 1 1 1 1 1 A 213 37545713 HEATER ASSY 1 1 A 213 37545714 HEATER ASSY 1 1 A 213 37545715 HEATER ASSY 1 A 214 43151273 SWITCH PRESSURE 1 1 1 1 1 A 215 37551736 SENSOR LOW PRESSURE 1 1 1 1 1 216 37551735 SWITCH FLOW 1 1 1 1 1 217 43032441 NIPPLE DRAIN 1 1 1 1 1 218 37595721 AS
10. 91 9 4 3 Temperature sensor temperature resistance characteristic table 101 9 5 Operation check by PC board 102 9 5 1 Operation check 102 9 6 Brief method for checking the key 103 9 6 1 Hydro unit 22 o EPIS S EARN LIS 103 9 6 2 Outdoor hit iiec RA wee Pee a 104 10 Hydro unit and Outdoor Unit 65 105 11 How to Exchange Main 127 12 Periodic Inspection 154 13 Part Exploded View Part 56 155 1 SAFETY PRECAUTIONS The unit and this service guide list very important safety precautions Understand the following details indications and symbols before reading the body text and follow the instructions About indication Indication Meaning of Indication Indicates that a wrong operation may cause a service engineer and the third persons DANGER around to get fatal or serious injuries Indicates that a wrong operation may cause a service engineer and the third persons AN WARNING around to get fatal or serious injuries or that unit defective after the operation may cause a user to have a simila
11. Yes TWI and TWO sensor characteristics Replace water heat exchange control board No Remove sufficiently excess air Waste stuck inside water circuit 12 M or longer water pipe to a branch or 5 or less branches 82 Replace flow switch Remove waste Place buffer tank and the second pump Attach TWI sensor Replace TWI or TWO sensor A12 Error Heating or Hot water supply heater failure Restart Operation starts under 10 TWI lt 20 Freeze prevention control is detected once Heater backup operation Heating Booster heater Hot water supply Hot water cylinder heater After 1 hour since heater operation started neither TWI 2 1590 nor TTW 2 20 C is met Water heat No exchanger board DPSW11 1 2 is ON Yes Backup heater or hot water cylinder terminal has 230ACV 23V No Power is connect to backup heater or hot water cylinder terminal Yes No Yes No Backup heater NG Backup heater element is conductive Yes Hot water cylinder heater element is conductive No Hot water cylinder heater NG Yes TWI TTW sensor characteristics are normal No See characteristic table in page 101 Yes Replace water heat exchange control board 83 A12 abnormality detection Set water heat board DPSW11 1 2 to ON Place electric wire for backup heater Place electric wire
12. and heater outlet sensors TWI TWO THO 3 Disconnection of the backup heater O Possible x Not possible Diagnostic functional operation od Backup Automat Determination and action a lc i ren present ic reset confirmation Pump or flowing quantity error 1 Detected by TC sensor TC2 63 is detected the heating or 4 74 hot water supply heat pump operation except for defrosting 1 Almost no or little water flow Not enough vent air 2 Detected by flow switch abnormality Dirt clogging in the water piping When no signal of the flow switch is system 2 74 showing 2 min after the built in pump The water piping is too long operatorn Started Installation of buffer tank and A01 3 Detection of chattering abnormality in secondary pump the flow switch input Chattering detection Detects input 4 74 changes OFF 2ON 4 times within 10 seconds during operation 4 Disconnection of the flow switch connector 1 Disconnection of the flow switch When the stopped built in pump starts connector 2 74 its operation the flow switch status is 2 Defect of the flow switch detecting water flow Temperature increase error heating Heating 1 Check the water inlet water outlet When one of the TWI TWO and THO and heater outlet TWI TWO THO A02 sensors exceeds 70 um sensors 1 75 2 Defect of the backup heater defect automatic reset thermost
13. 10 14 160 179 oeeoeo 15 19 180 199 eoeoeo 20 24 200 219 25 29 220 239 eeooeo 30 34 240 259 Oeooeo 260 279 eoooeo 280 299 300 319 00000 320 339 340 359 360 379 95 99 380 399 eeoeoo 100 104 400 419 Oeoeoco 105 109 420 439 eooeoco 110 114 440 459 115 119 460 479 120 124 480 499 O 000 125 129 500 100 104 26 26 9 130 134 105 109 27 27 9 135 139 110 114 28 28 9 140 144 115 119 29 29 9 145 149 120 or higher 30 30 9 150 154 sensor failure not connected 31 or higher 155 or higher TD TL and TH show errors below the ordinary temperature because they are sensors for high temperature Current value for the outdoor unit only is shown 124 3 Special operation for maintenance and inspection SW801 SW804 SW801 and SW804 can perform the following special operations for maintenance and inspection 1 Switches the dip switch SW804 See the table below 2 Presses the push button switch SW801 for approx 1 second 3 Starts the functions shown below During the start processing of each function LED D805 Green blinks 4 When the push button switch SW801 is pressed for approx 1 second or the dip switch SW804 is switched or the defined time for each function ha
14. Yes If case thermostat is short circuited N No Check outdoor board cooling and heating can operate If defective replace it No gas leakage No gt Correct defective portion Enough Refrigerant Re charge refrigerant Yes Service valve is fully opened gt Open fully service valve Yes Pulse motor valve is normal olen portion Replace defective parts Yes Check for piping collapse and break If defective repair or replace it L10 Indication 1 Indication 2 gt Model not set Only when service board is used ooeoee Cut jumper line by following the instruction comes with the service board package 92 Check code Outdoor LED indication Check and Action procedure No specific description indicates outdoor unit parts L29 Any of the following abnormality may occur Seeing the LED on the outdoor board can determine which abnormality occurs Communication failure between MCUs Heat sink temperature sensor TH failure EEPROM failure Model not specified Heat sink overheat failure gas leakage detection 4 way valve invert failure Indication 1 Indication 2 gt Oooooeo Communication failure between MCUs Check outdoor control board If defective replace it Indication 1 Indication 2 gt oeoeoo0 Heat sink
15. Compressor Fan motor case thermostat 2 H Temperature E e Electric control valve coil Screw for fixing board Control board Aluminum board Q201 Insulating sheet Q300 6 Nu Heat release grease 4 Ww 138 Exchange parts name Work procedure Remarks Electric parts replacement 2 Reactor 1 Perform the step 1 1 2 Remove the relay connector connected to the control board 3 Cutthe binding tie that binds the compressor leads and relay connectors 4 Remove the reactor Truss B tight screw 24 x 6 2 screws 5 Attach a new reactor Note Be sure to bind the removed binding tie by using the commercially available binding tie Make sure that the fan motor lead and the reactor body do not contact each other Binding tie Compressor lead Relay connector Fan motor lead 139 Exchange parts name Work procedure Remarks Fan motor 1 Perform the step 1 1 and step 2 2 Remove the fan motor and the flange nut that fixes the propeller fan To loosen the flange nut turn it clockwise Turn it counterclockwise for tightening 3 Remove the propeller fan 4 Remove the connector for fan motor from the inverter control board 5 Remove the fan motor lead from the fan motor lead fixing rubber on
16. Operation flow and applicable data etc 8 3 Hydro Unit Control 3 Circulation pump control One circulation pump enhancing pump P2 can be connected to the unit in addition to the built in circulation pump P1 DP SW10 1 3 within the water heat exchanger enables the built in pump P1 to be set either to usual energization or only HP and backup heater energization and also enables the enhancing pump P2 to be set either to interlocked or non interlocked with the built in pump Item Heater ON OFF Initial value Switch AC pump 01 None 02 None 03 Enhanced pump P2 OFF Interlock Interlock Non interlock with built in pump 04 None SW10 3 Existence amp position setting 1 The pump 1 in HP operates only in hot water supply side 2 Setting the enhancing pump P2 to non interlock sets the pump 1 to usual energization 3 1 Circulation pump Built in pump 1 Pump type AC motor rated voltage 230V manually changeable 3 level pump speed The pump operation starts when the following condition is met The HOT WATER or ZONE1 2 button is pressed The pump operation ends when the following condition is met Pressing the HOT WATER or ZONE 1 2 button stops the about 1 minute later The pump operation stops or re starts as follows Stops for 30 seconds when the operation mode changes Stops the pump when a boiler instruction is given and 70 lt TWI or TWO or
17. oooeoe Compressor drive element shorted out The connection between compressor lead reactor is correct Correct wiring Check with wiring diagram M Yes A operation without compressor lead V No does not cause the same problem Replace outdoor board Compressor check rare short circuit etc If defective replace it P29 Indication 1 Indication 2 gt Position detection circuit failure Check outdoor control board If defective replace it 98 Outdoor LED Check and Action procedure Check code indication No specific description indicates outdoor unit parts No code Indication 1 Indication 2 gt Discharge abnormality Compressor s loss of synchronism due to rapid load change etc Although the outdoor LED indicates abnormality the compressor restarts and no abnormality is confirmed This may occur due to the open phase of the compressor or wiring detach e 204 Indication 1 Indication 2 gt Discharge temperature sensor TD failure TD sensor co
18. outdoor unit controlled according to user defined operation condition settings 2 Details The operation controls include those shown in the left 3 Operations 1 An operation condition is selected with the remote controller 2 Setting the remote controller button to ON transmits a signal to the hydro unit 3 The hydro unit controller controls the operations shown in the left while also controlling the water 2 way valve water 3 way valve circulation pump mixing valve hot water cylinder heater and backup heater 4 The hydro unit controller transmits an operation instruction to the outdoor unit and uses serial signals to transmit and receive control statuses 5 The outdoor unit control unit performs the operation controls shown in the left while also controlling the compressor outdoor fan motor pulse motor valve and 4 way valve 36 Item Operation flow and applicable data etc Operation description 8 1 2 Hot water supply operation Hot water supply operation Basic 1 Purpose Operation HOT WATER Hot water supply Hot water temperature 40 to 75 button set to ON p 2 Details n This section performs hot water supply operation according to heating Hydro unit Circulation pump ON OFF control conditions specified for control Water 3 way valve control the steps in the left Hot water cylinder heater control 3 Ope
19. uoruod jo sjrejeq y uoniod jo sjrejeq yoq exeiui eounos 1 JOop no pue jepno Buidid uonduoseq 88 x OZ ejou ure1q 6 ejou Buoj 21 7 ejou Sz ejou 18 1402 HWS 1102H E ejou edeus n 71x21 jejno Bunoeuuoo 100pino pue Joopu uomod jo Duidid jo 10 pessoque 2 COLA TAT f 2 ty 2 7 2 691 uonoeuuoo lt 6 9 uonoeuuoo NS mem 55222222 v jo sjiejoq SU aloy Buol 1 guomog ejou 52 Z 19 4 3 Hot water cylinder HWS 3001CSHM3 E UK HWS 2101CSHM3 E UK 550 550 595 595 Specification for UK 90 2066 6 0702 1497 6 HWS 1501CSHM3 E UK 550 h Specification for UK only 20 5 Wiring Diagram 5 1 Hydro Unit
20. 3 Wai Wai MIXV Mixing valve THO Backup heater outlet temperature sensor T ORN 1 BH Booster heater Hot water cylinder temperature sensor SPOT kpe RYOS Relay0T 06 TFI Floor heating inlet temperature sensor LPS Low pressure sensor TB Terminal block Backup heatert 2 3 Heater 230 3KW 9 ac reaert Texas 9 sacs rears single operation single operation I single operation es 9555 Tangle operator Tenge obersten 7 Seehur heater 2 ss LLLI 555 Backup heater 3 Thermal profector Tangle opeaton 95 2s 1 27 15 waea maaa 111312763 RYOS LI 21819 21216 218 ole mvoe vee he Ne fe e favos ANAA BJE 573 21121819 21115121873 BEUBDHGE 8 9 3 gz d 9 mx F3 F4 F5 F3 F4 z Fuse 3 Fuse Fuse 250 14114 250 250 St T30A IRIS 19 TRA E x E 3 3 4 g zi 216 amp a Em RE gm 13 TB 01 6152 XL INS Option ar J ey 1006 Outdoor OS 1 unit AEK Power supply EE p 230 50Hz Power Supply Power supply Power supply eaxers 400V 3N 50Hz 400V 3N 50Hz 230V 50Hz id Power suppl Hot water cylinder 230050827 L L L 1 Th
21. IU ERA ERES 13 Specifications t iai eril cr Ere rue edat 15 4 Outside Drawing os scio were RES ode Se See Oe Mibi IS Ku 17 RELAX GUB DE Su eie 17 4 2 OutdOOr Uuhltz usse tp e xau e E RM B EM SA E ELI 18 4 3 Hot water 0 20 5 Wiring Diagrami Sotto pte FRIES S IUD acta ERE C EE Us 21 5 1 Unit oe E aa het e Eu dedere ES px SE ad do eu ars 21 b 2 Outdoor UNM o tet 22 5 3 Hot Water Cylinder Unit 41 23 6 Key Electric Component 24 6 1 hydro ril rotor Pee Pre aep ae eedem td afe Marge Ed ee 24 6 2 Outdoor Unlt abe dre AE SENE dedere Msi qo a ea Ae eed 26 6 3 Hot Water Cylinder 28 6 4 Water Heat Exchange Control 29 6 5 Outdoor Control 1 30 7 Refrigeration Cycle Water System Diagram 32 7 1 Water System Diagram 0 32 7 2 Refrigeration Cycle System
22. TD C Abnormal stop 111 Frequency normal down 109 d Frequency slow down 106 EN Frequency hold 103 Frequency slow up 96 up to the point instructed As instructed 57 Operation flow and applicable data etc 8 4 Outdoor unit control 3 Current release control The number of compressor rotation is controlled so that current value of the compressor drive circuit does not exceed the specified value The outdoor unit detects the input current The outside air temperature is detected and used to set the specified value of current The number of compressor rotation instructed by the hydro unit is used to determine whether the current value exceeds the specified value If exceeds the number of compressor rotation is reduced to the most approximate number instructed by the hydro unit within the specified value range Outdoor unit current inverter Main circuit control current Outside air temperature TO Current release point setting Operation current SSetting Compressor operation Hz down degradation Capacity control continue Heating Outside temperature Current release value A TO degree C 802H E 1102 1402H E 35s TO 12 0 12 0 15 lt TO lt 35 20 0 15 0 4 20 0 15 0 4 lt 15 20 0 20 0 Cooling Outside temperature Current release value A TO degree C
23. See display C CO The set temperature does not change The hot water supply operation S Nem CHOTHATER of 75 starts Co gt NE o The anti bacteria operation raises water temperature to 75 with the Po heat pump and heater and automatically ends after 30 minutes SET CL TEST AUTOTEMP ANTI BACTERIA OO 2 4 1 3 After that an anti bacteria operation automatically starts at set time and cycle 4 Pressing the ANTI BACTERIA button makes 9 disappear and the anti bacteria operation does not start How to set anti bacteria temperature and holding time In FC or OB See 2 2 the set temperature and holding time be changed Set temperature change range 70 to 80 75 default FC OB Holding time change range 0 to 60 minutes 30 minutes default How to set anti bacteria start time and cycle 1 Press the ANTI BACTERIA button for 4 seconds or longer See display C Moves to the anti bacteria time setting mode OC in the Code No field and the currently set 9 and indication blink GD 2 Press the TIME Y button to set a desired start time 3 Pressing SET changes DATE set time OC and r SELECT indication to be lit and the setting is confirmed gt NE jJ e e ED m 3 n TEMP D button to c
24. When Mixing Valve Yes is selected the unit controls Mixing Valve every 4 minutes FC based on the difference TSC T between the Zone2 set temperature and floor inlet water temperature sensor temperature as follows TSC AT 25 5 2 lt TSC AT lt 2 2 TSC AT Control value 1 step Open 0 step 1 step Close Initial value Driving range 1 step Control cycle 6 0 12 3 WV move 7 5 degs 4 mins FC For 2 temperature control DP SW12 3 Zone2 Yes must be selected Related FC FC No Setting item Default Setting available range Mixing Valve operation time 60 30 240 secs 59 Mixing Valve control time 4 1 30 mins 6 Q H characteristics of hydro unit The following shows the Q H characteristics 6 1 HWS 801XWHM3 E T6 E Hydraulic heat exchanger 8kW QH characteristics Minimum flow rate Pump head m Out of Operation Range 15 20 Flow rate L min 6 2 HWS 1402XWHM3 E 6 T9 E Hydraulic heat exchanger 14kW QH characteristics Minimum flow rate 10 9 8 m 7 6 oO g 5 SW3 Operation Swe 2 Range E 1 0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 Flow rate L min 53 Operation flow and applicable data etc 8 3 Hydro Unit Control 7 Automatic restart control The u
25. causing the characteristics change of the Air to Water Heat Pump or excessive high pressure in the refrigerant cycle with more than the specified amount of refrigerant charged This may cause burst or an injury If the refrigerant gas leaks perform refrigerant recovery or other operation to make the Air to Water Heat Pump contain no refrigerant and then perform vacuuming After that refill the unit with the defined amount of liquid refrigerant Never charge refrigerant exceeding the amount specified When the refrigerant cycle is refilled with refrigerant do not enter air or refrigerants other than the specified refrigerant R410A A mixture of R410A with air an inappropriate substance causes excessive high pressure inside the refrigerant cycle leading to an injury due to burst Check that there is no refrigerant gas leak after the installation is completed If it catches fire of a fan heater a space heater or a stove poisonous gases may be produced Be careful with wiring After a repair is completed be sure to reassemble the parts and put the wiring back to its original state In addition be careful with the internal wiring not to be caught in a cabinet or panel A defective assembly or wiring may cause a disaster at a customer site due to electrical leakage or a fire Check for water leak After the repair of a water pathway is completed check that there is no water leak n using the product water
26. 22 00 OD Anti bacteria start cycle 1 10 Every day to 10 day cycle 07 7 day cycle OE Night operation start time 0 23 0 00 to 23 00 22 22 00 OF Night operation end time 0 23 0 00 to 23 00 06 06 00 11 Remote control Alarm Tone 0 Alarm Tone OFF 1 Alarm Tone ON 1 Alarm Tone ON 108 3 Trial Operation Procedure A trial operation is available with an actual operation in progress or stopped A trial operation is available in any of the hot water supply heating or cooling mode The compressor starts according to the trial operation frequency A trial operation automatically stops after 30 minutes at the longest if not stopped with the remote controller 1 Press the remote controller TEST 4 button for 4 seconds or longer to display TEST on the LCD screen For hot water supply trial operation C zonei 20 2 gt WATER 4 50 2C 2 Press the HOT WATER button and a hot water supply trus 19 operation starts after 3 minutes See display C COR The pump immediately starts SCHEDULE NIGHT ZONE 1 2 HOT WATER 3 Pressing the HOT WATER button again stops the hot Co NE o 2 water supply operation For heating trial operation TIME DAY STEP OPERATEMODE HOT WATER BOOST OO Ge KC TEST FROSTPROTECTON AUTO TEMP ANTI BACTERIA S QIO Ce SET CL ee
27. 3 Press the TEMP v A button to change Code No The codes OE and OF only can be changed 4 Press the TIME Y button to set a desired end time Pressing SET changes the time to be lit and the setting is 4 confirmed 5 Press the TEST button to exit the NIGHT time setting mode 114 gt zoNE1 4 20 2 5 ME LL 1 1 1 9 OTUJSWEITHYFR SAJSU 42 TUI 2C LOL e SELECT HOT WATER H co lt gt SCHEDULE NIGHT ZONE 1 2 HOT WATER Co ao TIME DAY STEP MODE HOT WATER BOOST CO QD COCO Ke SET CL o ANTI BACTERIA O emce gt 9 27 Sr i amp TEMP 6 lt gt ey n NIGHT ZONE1 2 HOTWATER gt NE o TIME DAY STEP OPERWENOOE HOT WATERBOOST qQ200 CO CO SET CL TEST FROSTPROTECTIO AUTO TEMP ANTI BACTERIA X sar Ce 15 1 SCHEDULE 9 Anti Bacteria Setting This setting regularly raises the hot water cylinder temperature to prevent bacteria from growing 1 Press the HOT WATER button to start a hot water supply operation Normal hot water supply operation C zoNE1 20 2 TU WE TH FR SA SU No anti bacteria setting is provided to heating and cooling Ian 2 Pressing the ANTI BACTERIA button displays the Q t TEMP symbol
28. Cooling operation check with remote controller 4 Refrigerant leakage Water leakage inspection Annually Visual inspection and check with a leak tester No leakage must be found 5 Water heat exchanger inspection Internal dirt and Annually Checking for water dirtiness in a closed cycle Cleaning clogging 6 Inlet Outlet water temperature measurement Annually Temperature measurement Temperature measurement during an operation 7 Circulation pump inspection Annually No leakage or abnormal noise must be found Replacement every 10 years Charged 8 Air vent valve inspection Annually Water leakage Air vent 9 Expansion vessel Annually Visual check for charge pressure abnormality water leakage or corrosion 10 Heater assembly Annually Check for appearance damage deformation or loose terminal 11 Flow switch Annually Operation check while running 12 Manometer Annually Water leakage water pressure check 13 Safety valve Annually Water leakage Appearance check Drainage check 14 Water heat exchanger control board Terminal block Annually Check for loose connector and connecting terminal Outdoor unit Den HWS 802H E 1102 1402H E Frequency Periodic inspection details 1 Insulation measurement Power source circuit Annually Insulation measurement with a mega tester Compressor 2 Power source measurement No load voltage Rated Annually Electronic voltage measurement 230V 23V operation 3 Operation frequency Outdoor unit operatio
29. Flow switch connector Option board 208 211 Transformer connector CN102 OLHA Built in Ej Ha T M Transformer input connector ot water cylinder CN101 drive connector CN601 3WV drive connector EE AC power supply connector 1 ag CN100 Vas ND Serial input connector CN305 CN602 Mixing valve drive Backup heater 1 drive Backup heater 2 drive connector connector connector CN606 CN604 CN605 29 6 5 Outdoor Control Board HWS 802H E Reactor connection connector Electrolytic capacitors Fan motor output Compressor output terminals Power circuit protection CN300 White CN202 fuse F100 250 V 3 15 A plastic case Case thermostat connector CN609 Blue 4 way valve connector CN701 White Compressor ON output connector CN704 Blue Heater output connector CN703 Grey External input connector CN610 Yellow Special operation switches Sws01 SW804 Display change over switches Temperature sensor connectors TL CN604 White TD CN603 White TO CN602 Yellow TE CN601 White TS CN600 White 5 Alive error display LED D800 804 Yellow D805 Green 4 way valve protection Power circuit protection PMV connector fuse fuse CN710 White F700 250 V 3 15 A F01 250V 25A mE plastic case Initialization switch Connecting cable connector Power supply connection l
30. HWS 1102H E 1402H E No Component name Type name Rating 1 Compressor DA422A3F 25M 2 Outdoor fan motor x2 ICF 280 A100 1 Output 100 W 3 Reactor 2 CH 44 1 4 mH 25 4 4 way valve coil UKV A038 AC230 V full wave rectifier input alive time 10 sec or less 5 Pulse motor valve PMV coil VHV 01AP552B1 DC12 V 6 Board MCC 1560 Input 30 AC230 V 23 V 50 60 Hz 7 Compressor case thermostat US 622KXTMQO SS OFF 125 4 ON 90 5 27 6 3 Hot Water Cylinder Unit No Model name 1501 2101 3001 Component name CSH CSH CSH Type name Rating M3 E M3 E M3 E UK UK UK 1 Hot water cylinder heater AC230 V 2 75 KW Hot water cylinder temperature 10 25 2 sensor TTW sensor 3 Thermal cut out 5 6 Operating temperature Manual reset 82 C 3k 2k Applied 28 6 4 Water Heat Exchange Control Board HWS 802XWHM3 E 802XWHT6 E HWS 1402XWHM93 E 1402XWHT6 E 1402XWHT9 E TC sensor connector TTW sensor connector CN203 CN214 Relay board connector Remote control sensor Low pressure sensor connector CN501 connector connector CN207 CN212 CN41 CN213 THO sensor connector CN206 TWI sensor connector CN204 TWO sensor connector CN205 1 e Pressure switch connector P CN201 Overheat protection thermostat input connector CN202
31. In FC_08 or 09 See 2 2 the operation time and set temperature can be changed FC_08 Operation time change range 30 to 120 minutes 60 minutes default FC_09 Set temperature change range 40 to 80 C 75 C default 11 Nighttime Low noise Setting This setting is used to reduce noise output from the outdoor unit during nighttime for neighbours Nighttime low noise operates with lower operation frequency and fan tap than usual only for the set time period The operation is the same as usual hot water supply heating or cooling Adjust the unit time before making the settings 3 reve SELECT How to enable set start time and end time of nighttime low noise 2 SCHEDULE NIGHT ZONE 1 2 HOT WATER gt Co JU NE o 3E 1 Press the TEST Cv button at the same 4 TIME DAY STEP OPERATEMODE HOT WATER BOOST time for 4 seconds or longer See display gt 6 1 O ea cu Moves the nighttime low noise setting mode Le O 206 Ce s 09 displayed in the Code No field and the DATA currently 1 displayed and 4 blink 46 7 2 Press TIME Y 4 to set enabled 1 or disabled 0 A Pressing SET changes DATA indication to be lit and the setting is confirmed For DATA only 1 or 0 can be selected blink Press the TIME Y 4 button to set start time Pressing SET C changes DATA and indication to be lit
32. No Circulation flow shortage operation at low outside emperature and at 15 C or lowe Set temperature Yes Raise set temperature Cooling overload operation No Defrosting akes 15 mins or longer Frost remains Yes Defrost outdoor unit where frost remains No No Lo pressure sensor is normal Replace lo pressure sensor Yes Replace water heat exchange control board 80 A09 Error Overheat prevention thermostat failure Hot water supply Heating operation No Put water into water circuit Water cycle contains water Recommended 1 2 Bar Yes No Flow switch is normal Replace flow switch Yes At normal temperature overheat preventive thermosta is normal No Replace heater unit exchanger air vent valve Yes Replace water heat exchange control board or overheat preventive thermostat failure Replace water heat exchange control board or overheat preventive thermostat failure After the control board is replaced if the same operation repeats the overheat preventive thermostat is determined as defective does not operate at 75 81 A11 Error Release protection operation No Flow switch is normal Yes Excess air noise comes from inside pump Secure water circulation amount Circulation flow shortage Chattering noise comes from flow switch No TWI sensor is No attached to pipe
33. SS Replace the packing to new one when installing the expansion vessel 0550 10 Relief valve To replace a water circuit part first close the water supply source valve and the valve of water pipe connected to the hydro unit 1 Perform the step 1 1 step 5 6 and 7 2 Remove the quick fastener 3 Remove the relief valve by pulling it upward The relief valve connection uses an O ring for water seal Be careful not to scratch the O ring otherwise water leakage may occur After the relief valve replacement repair open the water supply source valve and water piping valve to pass water through the hydro unit and check that the relief valve connection has no water leakage fastener 11 Air vent valve To replace a water circuit part first close the water supply source valve and the valve of water pipe connected to the hydro unit 1 Perform the step 1 1 step 5 6 and 7 2 Remove the air vent valve After the air vent valve replacement repair open the water supply source valve and water piping valve to pass water through the hydro unit and check that the air vent valve connection has no water leakage 131 Exchange parts name Work procedure Remarks 12 Pump To replace a water circuit part first close the water supply source valve and the valve of water pipe connected to the h
34. Socket joint A socket joint is used to connect the thick walled pipe of mainly 20 mm or larger in diameter Table 2 2 shows the wall thickness of socket joints Table 2 2 The minimum wall thickness of socket joints Nominal diameter Reference of outer diameter of Minimum joint wall thickness copper pipe connected mm mm 3 8 9 52 0 80 5 8 15 9 1 00 2 2 2 Processing of piping materials When installing refrigerant pipe prevent water or dust from entering the pipe and do not use oil other than lubricant used for Air to Water Heat Pump Make sure that no refrigerant leak occurs If piping needs lubrication use lubricating oil whose water content is removed After the oil is put in be sure to seal the container with airproof cover or other covers Flare and precautions 1 Cut a pipe Cut slowly with a pipe cutter so that the pipe is not distorted 2 Remove burr and flaw A burr or flaw in a flare part may cause refrigerant leak Remove carefully all the burrs and clean up the cut ends before installation 3 Insert a flare nut 4 Flare Check that the clasps and copper pipe are clean Flare correctly using the clasp Use a flare tool for RA10A or the conventional one Flare processing dimension varies depending on the flare tool type When using the conventional flare tool use a gauge for size adjustment to secure the A dimension Figure 2 2 1 Flare dimension Table 2 2 3 Flare processing rel
35. T3 Setting available range to 15 Heating operation 1 2 Purpose Heating Details This section performs heating operation according to heating conditions specified for the steps in the left Operations 1 Set the ZONE 1 2 remote controller button to ON 2 The hydro unit controller starts to transmit a heating operation signal to the outdoor control unit 3 The hydro unit performs the operation controls shown in the left while also controlling the circulation pump backup booster heater ON OFF water 2 way valve and water 3 way valve 4 The outdoor unit controls the compressor outdoor fan motor electric expansion valve and 4 way valve based on the operation signals transmitted by the hydro unit 37 Item Operation flow and applicable data etc Operation description 8 1 Basic Operation 4 Cooling operation ZONE1 2 button set to ON Hydro unit control Operation instruction signal transmit Outdoor unit control Cooling temperature 10 to 25 Circulation pump ON OFF control Water 3 way valve control Water 2 way valve control Number of compressor revolutions control Number of outdoor fan motor revolutions control Pulse motor valve control 4 way valve control NOTE No coding mode in default setting When use the cooling mode please change the 02 to 0 Related FC FC No Setting item De
36. between hydro unit and remote E03 controller 1 Check remote control connection 1 When there is no regular communication 2 Defect in the remote control from the remote control for 3 min or when no remote control is equipped Regular communication error 1 Check the serial circuit between hydro unit and outdoor unit Miswiring of the crossover between E04 rd 1 84 The serial signal cannot be received the water heat exchanger and the from outdoor outdoor unit TC sensor error 1 Check the resistance value and F03 Open or short circuit in the heat connection of the heat exchange 1 85 exchange temperature sensor temperature sensor TC TWI sensor error 1 Check the resistance value and F10 Open or short circuit in the water inlet connection of the water inlet 1 86 temperature sensor temperature sensor TWI TWO sensor error 1 Check the resistance value and F11 Open short circuit the water outlet x O connection of the water outlet 1 87 temperature sensor temperature sensor TWO TTW sensor error 1 Check the resistance value and F14 Open or short circuit the hot water x connection of the hot water cylinder 1 87 cylinder sensor sensor TTW 68 Diagnostic functional operation Number of Check naf abnormalities Detailed code Operational caus Backup Automat Determination and action for item perauonascause present i
37. 105 2 Hydro unit Function Code Setting 2 1 How to set function code Procedure Perform the following when no operation is in progress 1 Press the SET and TEST 4 and SELECT buttons at the same time for 4 seconds or longer See display C 2 Specify CODE NO FC with the TEMP v button for temperature setting 3 Selecta setting data with the TIME Y 4 button for timer 2 7 cn al Mp hi Li ts F TEMP SELECT Cy CAD M SCHEDULE NIGHT ZONE 1 2 HOT WATER setting Co JE gt NE gt value the DATA item changes Oo a e quem 4 Press the SET button If lights the status is BE o confirmed com To change the item to be set go to 2 4 5 1 5 Pressing the TEST 4 button moves the unit to the normal stop state 2 2 How to set remote controller function code This operation can set the start and end time of the nighttime low noise anti bacteria night set back or other functions Procedure Perform the following when no operation is in progress 1 Press the TEST 4 and CL and TEMP v buttons at the same time for 4 seconds or longer See display gt lt gt appears on the left 2 Specify CODE NO FC with the TEMP CA button for temperature setting GG 3 Select a setting data with the TIME Y 4 button for timer 2 1 31
38. 2 For 2 temperatures control the flow adjustment of MIXING VALVE controls the water temperature of ZONE2 details see the description on MIXING VALVE control in 8 3 5 1 Operation start condition Pressing the ZONE 1 2 button of remote controller starts TWI heating operation 1 2 Thermostat off e zone 2 Operation mode selection operation An operation mode is determined according to the temperature TSC F of TWI sensor Heat pump operation selection 1 2 When TWI TSC F d zone in the right figure is met the heat C f 0 pump operation is selected Thermostat status OFF When TWI 2 TSC F e zone in the right figure is met the thermostat status OFF is selected TSC F is a heating temperature set with remote controller diff2K Heat pump operation 3 Operation stop condition When the following condition is met the heating operation stops The remote controller gives a stop instruction 1 When the outside temperature is 20 or below the heater operation is selected even if the TTW temperature falls into d zone 2 When Hot water supply and Heating are simultaneously in operation the heater operation may be selected depending on the outside air temperature Related FC FC No Setting item Default Setting available range 1A Upper limit of heating Zone1 limited temperature 55 37 55 C 1B Lower limit of heating Zone1 limited temperature 20 20 37 1
39. 25 TFI sensor 9 Pressure switch Operating pressure 4 15 MPa 0 0 3 MPa 10 Low pressure sensor Operating pressure 0 20 MPa 11 Thermal protector auto Operating temperature 75 3 C DC42 V 0 2A 12 Thermal protector single 6 Operating temperature 95 5 AC250 V 16 operation 13 Flow switch Operating flowing quantity 18 L min 14 Output board OP OP OP OP 230 V0 5ADC24V1A 15 Input board OP OP OP Contact input 16 Remote control HWS AMS11E 17 Water 3 way valve terminal 6 AC230V0 1A 2Wire 3Wire SPST SPDT type mountable 18 Water 2 way valve terminal AC230 V 0 1 A 2Wire type mountable 19 Mixing valve terminal o d B E 3Wire SPST SPDT type mountable 20 Circulating pump terminal AC230 V 1 0A 21 Booster heater terminal AC230 V 1 0A 22 Fuse AC 250 V 30 A O AT Applied Optional accessory 25 6 2 Outdoor Unit HWS 802H E No Component name Type name Rating 1 Compressor DA220A2F 22L 2 Outdoor fan motor ICF 280 A60 1 Output 60 W 3 4 way valve coil VHV 01AP552B1 AC230 full wave rectifier input alive time 10 sec or less 4 Pulse motor valve PMV coil CAM MD12TF 15 DC12V 5 Compressor case thermostat US 622KXTMQO SS OFF 125 4 ON 90 5 6 Reactor CH 56 5 8 mH 18 5 A 7 PC board 1571 Input 10 AC230 V 23 V 50 60 Hz 26
40. 802H E 1102 1402H E 44 lt TO 9 5 15 0 39 lt 44 13 0 177 10 lt lt 39 16 0 20 0 No cooling operation available for TO lt 10 A CT 20 0 12 0 4 Current releases shift control During a cooling operation this control prevents the electronic parts such as a compressor drive element and compressor from failing The current release control value is selected from the following table according to the TO sensor value Current release control value Temperature range 802H E 1102H E 1402H E 50 C lt TO 10 5 14 1 14 1 45 lt TO lt 50 C 10 5 14 1 14 1 39 lt lt 45 14 0 14 1 16 4 lt 39 16 0 14 1 16 4 TO abnormal 10 5 14 1 14 1 58 Operation flow and applicable data etc 8 4 Outdoor unit control 5 Outdoor fan control The outdoor side control part controls the number of fan motor rotations by receiving an operation instruction from the indoor side Hydro unit control part Although the fan motor is a DC motor which has non step variable numbers of rotations it is limited to some steps for convenience of control The number of fan tap rotation allocation rpm w1 W2 WA w5 W6 ws 802H E 200 230 260 300 340 380 420 460 1102 Upper 200 240 240 260 320 380 480 500 1402H E Lower 200 200 200 280 360 400 500 520 w9 WA WB
41. As shown on the right place a flow sensor parallel to the water heat exchanger inlet pipe so that the wire is place on the right side from the front view After the flow switch replacement repair open the water supply source valve and water piping valve to pass water through the hydro unit and check that the flow switch connection has no water leakage Flow switch Water heat inlet pipe a 14 Manometer To replace a water circuit part first close the water supply source valve and the valve of water pipe connected to the hydro unit How to remove 1 Perform the step 1 1 and step 5 and 6 2 Remove the manometer After the manometer replacement repair open the water supply source valve and water piping valve to pass water through the hydro unit and check that the manometer connection has no water leakage Manometer 133 Exchange parts name Work procedure Remarks 15 Heater assembly To replace a water circuit part first close the water supply source valve and the valve of water pipe connected to the hydro unit How to remove 1 Perform the step 1 1 step 5 6 7 and 11 2 Remove the nut of the heater connection 3 Remove the 2 fixed screws of the heater 4 Pull the heater out upward 5 Remove the insulator from the heater How to attach The heater connection uses a liquid packing f
42. At the time of power on detecting the above failure automatically activates the automatic address setting mode Check code is not output Note that if the above failure is detected in the automatic address setting mode a check code may be output L09 Error Hydro unit capacity is not set Set indoor unit capacity data Setting item code FC 01 8kW 12 14 kW 17 Water heat exchange control board MCC 1511 Check If defective replace it L16 Error In DP SW12 2 3 of main unit water heat exchanger if ZONE1 is not set and ZONE2 is set L16 displays abnormality Set correctly DP SW12 2 3 90 9 4 2 Outdoor Unit Failure Detection Diagnosis procedure for each check code One check code may indicate multiple symptoms In such a case see the LED indication on the outdoor board to narrow down the check details The handy remote controller displays a check code only when the same failure repeatedly occurs while the LED on the outdoor board indicates an error even if it occurs only once This may cause indication inconsistency between the remote controller and LED Outdoor board LED indication method Dip switch setting Setting 1 only of SW803 to ON indicates the latest failure Because the error history is recorded you can see the detail even after the power is once turned off Not including outside air temperature sensor TO failure After check work is done or when outside air
43. Exchange parts name Work procedure Remarks Electric parts replacement 1 Control board 1 Perform the step 1 1 WARNING For 1 minute after the power is turned off do not disassemble the inverter to prevent an electric shock 2 Remove the connector connected to the control Hydro power source temperature sensor electric control valve coil 4 way valve coil compressor case thermostat fan motor Remove the connector by releasing the lock in the housing 3 Remove the lead cable connected to the control board Compressor lead U CN200 Red V CN201 White W CN202 Black Reactor lead CNO5 White CNO6 White Relay connector 4 Remove the ground wire of the control board Truss B tight screw 24 x 6 1 screw 5 Remove the fixed screws of the control board Collar screw for fixing element 93 x 16 9 screws Pan S tight screw for fixing the board 23 x 20 1 Screw 6 Remove the control board Supporter 5 positions Note Removing the control board may be difficult due to the heat release grease for the heat sink 7 Attach a new control board Note Be careful for not taking the compressor lead V CN201 White for the reactor lead 5 or 06 White The compressor lead has a transparent sleeve at its ring terminal The reactor lead ring terminal does not have sleeve Be sure to attach the insulating sheet Applying beforehand a bit of heat release grease to the back side of the insulating s
44. How to determine the presence of any 1 key components 9 6 2 Outdoor unit defect particularly in functional parts 64 9 1 Matters to be confirmed first 9 1 1 Check the power supply voltage Check that the power supply voltage is 230 V 23 V If the power supply voltage is not in this range it may not operate normally 9 1 2 Check for any miswiring of the connection cables between the hydro unit and the outdoor unit The hydro unit and the outdoor unit are connected with three connection cables Make sure the interconnecting connections between the hydro unit and the outdoor unit terminal blocks are connected to the correct terminal numbers If not connected correctly the heat pump system does not operate However a miswiring would not cause damage to the equipment 9 1 3 About the installation of the temperature sensor If each sensor is removed due to the replacement of the water heat exchange or inverter board or the replacement of the refrigeration cycle parts make sure to put the sensor back to the position where it was before Each sensor position has a marking Make sure to put it back to the exact position Make sure to install it with a sensor holder so that the temperature sensing part of the sensor and the straight part of the copper piping are attached with each other tightly Ifthe installation of the sensor is incomplete or the installed position is wrong it will not perform a normal control ope
45. Reference values Nominal diameter Outer diameter mm Tightening torque Nem kgfem 3 8 9 52 33 to 42 3 3 to 14 2 5 8 15 9 66 to 82 6 8 to 8 2 2 3 2 3 1 Necessary tools In Air to Water Heat Pump using 410 the service port diameter of packed valve of the outdoor unit is changed to prevent mixing of other refrigerant To reinforce the pressure resistance flare dimensions and opposite side dimensions of flare nut 12 7 copper pipe of the refrigerant piping are lengthened Because the refrigerating machine oil is changed mixing of oil may generate sludge clog capillary or cause other problems Accordingly the tools to be used include tools dedicated for RA10A Those that cannot be used for the conventional refrigerant R22 tools dedicated for R410A but can be also used for the conventional refrigerant R22 tools that can be used for the conventional refrigerant R22 The following table shows the tools dedicated for R410A and their interchangeability Tools dedicated for R410A The following tools must be for R410A Tools whose specifications are changed for R410A and their interchangeability Conventionalrefrigerant Air to Pump Air to Water Heat Pump installation No Tool to be used Usage For R410A Conventional New equipment can be Existenceofnew equipment be used with conventional equipment used refrigerant 1 Fl
46. TE sensor failure Replace TD sensor TE sensor connector CN601 is connected Correct TE sensor connection TE sensor resistance characteristic is normal Replace TE sensor Replace water heat exchange control board 85 F07 Error TL sensor failure TL sensor connector CN604 is connected Correct TL sensor connection TL sensor resistance characteristic is normal Replace TL sensor See characteristic table on page 101 Replace water heat exchange control board F08 Error TO sensor failure TO sensor connector CN602 is connected Correct TO sensor connection TO sensor resistance characteristic is normal Yes Replace water heat exchange control board F10 Error TWI sensor failure Replace TO sensor See characteristic table on page 101 TWI sensor connector CN205 is connected Correct TWI sensor connection TWI sensor characteristic is normal Replace TWI sensor See characteristic table on page 101 Replace water heat exchange control board 86 F11 Error TWO sensor failure TWO sensor connector CN205 is connected Correct TWO sensor connection TWO sensor characteristic is normal Replace TWO sensor See characteristic table on page 101 Replace water heat exchange control board
47. TO sensor failure Check for the failure with the setting for current abnormality See 2 2 Temperature sensor indication TD TE TS These switches indicate the temperature sensor detecting value SW803 5803 SW803 TC TWO 2 heating hot water supply pm Cos Cols TC TWO cooling See 2 3 m Sr TO TL TH SW803 SW803 SW803 Coals leo e leo s t Bru 50 TW TC SW803 SW803 E Lyn e c0 m Current indication SW803 This switch indicates the current value in the outdoor unit See 2 3 tle E Compressor operation frequency indication SW803 This switch indicates the compressor operation frequency See 2 3 c PMV Openness indication SW803 This switch indicates PMV Pulse motor valve position See 2 3 5 1 122 2 2 ality indication The current abnormality and the latest abnormality including the current one can be identified by the LED D800 to D804 on the outdoor control board 1 Setting all the SW803 dip switches to OFF indicates the current abnormality status 2 Setting SW803 dip switch 1 only to ON indicates the previous abnormality including the current one 3 An abnormality lights any of the LEDs from D800 to D804 Indication 1 4 Pressing the push button switch SW800 for approx 1 second sw
48. This setting Us Power save setting controls the compressor frequency lowering about 1096 according to the SEU Snow prevention fan control heat exchange temperature of the hydro unit during a heating or hot water All OFF position at factory setting supply operation Snow prevention This control enables the function that prevents snow from entering the draft fan control air duct through the fan guard or a heat exchanger gap and causing moter lock If the outside air temperature is 0 below this control operates the outdoor fan in W5 even if the compressor is not in operation Defrosting time J805 J806 If the defrosting interval is shorter than the standard the jumper wire is cut change For the control details or how to cut the jumper wire see defrosting control Maximum J807 If the maximum value of compressor frequency need to be lowered cut the frequency change jumper wire shown on the left This control lowers the maximum frequency when hot water supply heating or cooling is in operation HWS 802H E only In this case the maximum capacity decreases Maximum frequency of compressor HWS 802H E HWS 1102H E HWS 1402H E s Cooling Heating Cooling Heating Cooling Heating Standard 70 2 70 2 60 0 60 0 70 2 70 2 J807 cut 53 4 64 2 60 0 60 0 70 2 70 2 120 16 3 Service support functions LED indication Switch operation method The following settings are available
49. and the setting is confirmed blink Press the TIME Y button to set end time Pressing SET changes DATA and indication to be lit and the setting is confirmed O Om A Press TEST to exit the nighttime low noise time setting mode and 48 indications go out 116 Press the TEMP button to change Code to DATA and indication again Press the TEMP v A button to change Code No to 0B DATA and indication again 12 Forced Defrosting Setting The FC code setting See 2 2 can activate the forced defrosting mode for the outdoor unit operation Preparation 1 Press the remote controller buttons TEST A SET and SELECT atthe same time for 4 seconds or longer Make sure that no operation is in progress 2 Specify CODE NO FC 46 with the TEMP v ic DDU button for temperature setting i TEMP SELECT GD 3 Set DATA to 0001 with the TIME Y 4 button for timer 2 eee setting See display gt ED e Po Factory setting is 0000 TIME DAY STEP OPERATE MODE HOT WATER BOOST PG _1LQ OO 4 Press the SET button If OK lights the status is Es 20 normal 5 Pressing the TEST 4 button moves the unit to the normal 4 stop state Operation Press the ZONE1 2 button Set the operation to the heating mode After a while forced defrosting sig
50. capacity is low NOTE Phosphor bronze brazing metal tends to react with sulfur producing a fragile compound water solution This may cause gas leakage Therefore use other type of brazing metal at a hot spring resort or similar place and coat the surface with coatings To braze the pipe again while performing service work use the same type of brazing metal 2 5 2 Flux Why flux is necessary Removing all the oxide film and any foreign matter on the metal surface assists the flow of brazing metal Flux prevents the metal surface from being oxidized in the course of brazing Reducing the brazing metal s surface tension enables the brazing metal to adhere for better metal processing Characteristics of flux The activation temperature of flux matches the brazing temperature wide effective temperature range makes flux hard to carbonize It is easy to remove slag after brazing The corrosive action to the treated metal and brazing metal is minimum The good performance of flux gives no harm to a human body Since flux works in a complicated manner as described above select an appropriate type of flux according to metal treatment type brazing metal and brazing method or other conditions 13 Type of flux Non corrosive flux It is generally a compound of borax and boric acid It is effective when brazing temperature is higher than 800 C Active solvent Most of this type of flux is genera
51. display C Make sure that no operation is in progress 2 Specify an item code FC from among 29 to 2F with the TEMP SELECT TEMP v button for temperature setting 2 GO Cya P 3 Set data with the TIME button for timer setting D 4 Press the SET button If lights the status is Ma OC o confirmed 3 p Oo AUTOTEMP ANTI BACTERIA A C e JK 5 Repeat 2 through 4 for each item 6 Pressing the TEST 4 button moves the unit to the normal 4 6 1 stop state FC Item Details Fist shipment 29 Outside air temperature T1 temperature 0015 15 C 0000 0 C 0010 10 C 2B Outside air temperature T3 temperature 0000 0 C 0015 15 0010 10 2C Set temperature A with outside air temperature of 20 C 0020 20 C 0055 55 0040 40 2D Set temperature B with outside air temperature of T1 0020 20 0055 55 0035 35 2 Set temperature C with outside air temperature of 0 C 0020 20 C 0055 55 0030 30 2F Set temperature D with outside air temperature of 0020 20 0055 55 0025 25 30 Set temperature E with outside air temperature of 20 0020 20 0055 55 C 0020 20 31 Zone2 ratio with Zone1 as Auto 0000 096 0100 100 0080 8096 TSC F Set temperature c Auto Curve Temperature shift A 40 Default Setting B 35 30 gt D 25 20 20 Ti
52. filled with nitrogen to prevent the back flow of the nitrogen gas 4 If the nitrogen gas flows out be sure to keep open the piping end 5 Use the reducing valve to adjust the nitrogen gas flow speed to 0 05 m hour or 0 02 MPa 0 2 kgf cm 6 After the steps above keep the nitrogen gas flowing until the pipe cools down to a certain extent Temperature where the pipe is cool enough to be touched by hands 7 Remove the flux completely after brazing Fig 2 5 1 Prevention of oxidation during brazing Flow meter Stop valve Nitrogen gas cylinder From nitrogen cylinder Nitrogen gas Robber plug 14 3 Specifications Unit name Hydro unit HWS 802XWHM3 E 802XWHT6 E Outdoor unit HWS 802H E Heating capacity 1 KW 8 0 Cooling capacity 2 KW 6 0 Variable range of compressor frequency 10 70 Hz Power source Single phase 50Hz 230V Operation mode Heating Cooling Electric characteristic 1 2 Hydro unit Current A 0 98 0 46 Power kW 0 101 0 097 Power factor 91 5 91 7 Outdoor unit Current A 8 26 8 90 Power kW 1 859 2 033 Power factor 97 8 99 3 Total Starting current A 9 24 9 36 Operating noise 1 2 4 Hydro unit dB A 29 29 Outdoor unit dB A 49 49 Coefficient of performance 1 2 4 08 2 82 Hydro un
53. for hot water cylinder Set breaker for backup heater to ON Set breaker for hot water cylinder to ON or check indoor wiring Replace booster heater unit and safety valve Replace hot water cylinder heater Refer to hot water cylinder guide Replace TWI or TTW sensor E04 Error Outdoor unit operates Group address of remote controller is correctly set Yes No Check item code 14 Yes Hydro unit Internal wiring and connecting wire 1 2 3 are correct No Correct wiring and connecting wire Yes N04 connector and terminal block 1 2 3 wiring are normal No Correct connector and terminal block wiring Yes When power is on again D502 Amber LED blinks No Check water heat exchanger board If defective replace it Yes Check water heat exchanger control board Check outdoor control board If defective replace it If defective replace it 84 F03 Error TC sensor failure TC sensor connector CN203 is connected Correct TC sensor connection TC sensor resistance characteristic is normal Replace TC sensor Replace water heat exchange control board F04 Error TD sensor failure TD sensor Correct TD sensor connector CN603 is connection connected TD sensor resistance characteristic is normal Yes Replace water heat exchange control board F06 Error
54. heating or hot water supply Lo pressure sensor detects PS 0 2 MPa and 10 minutes passes heating and hot water supply operation 2 Determination cancellation condition After a restart the start condition is not met for 30 minutes Atthe next time of defrosting the start condition is not met Defrosting operation for heating or hot water supply 3 Error display If freeze determination cancellation condition is not met 8 error is displayed 9 High return water protect control The hydro unit protects against high return water which made by separate boiler system TWI TWO THO A02 error detect 70 Diff 2K Normal operation When 02 error appeared the built in pump will stop 55 Operation flow and applicable data etc 3 Hydro Unit 10 Room temperature thermostat control Option Control board is necessary Connect the connection cable to the water heat exchange board CN211 When the room thermostat is connected and heating or cooling operates with DP SW12 4 set to ON an room thermostat operation is performed Terminal label 10 1 Heating thermostat operation When the heating room thermostat is OPEN the usual heating AUTO operation is performed After 30 minutes has passed if the heating room thermostat continues to be in the OPEN status the operation raises the water temperature by 1 degree every 30 minutes The same heater control as tha
55. is ON Yes No Secure water Dirt clogging circulation amount in inside water circuit Circulation flow shortage Replace flow switch inside strainer etc 12 M or longer water pipe to Fit buffer tank and the second pump a branch or 5 or less branches Set DP SW11 1 to ON Power is connect to backup heater terminal No Yes Backup heater element is conductive No Backup heater NG Yes C TWO TW sensor characteristics are correct No See Characteristic table on page 101 Yes Replace water heat exchange control board 77 Connect backup heater power cable Set heater breaker to ON Check indoor wiring Replace backup heater unit Replace TC TWO and TWI sensors A05 Error Piping freeze prevention control Restart TWI 4 TWO lt 4 or THO lt 4 is detected Circulation pump keeps being energized or 3 minutes passed after the start Water heat exchange control board DPSW11 1 is ON No Yes Backup heater terminal No has 230ACV 23V Yes Power is connect to No built in heater termina Yes No Backup heater NG Backup heater element is conductive Yes TWI TWO THO sensor characteristics No See characteristic table in page 101 Replace water heat exchange control board 78 Set water heat board DPSW11 1 to ON Place pow
56. minutes has passed Hot water supply operation in b zone the operation Related FC FC No Setting item Default Setting available range 07 Maximum HP operation time in hot water supply heating 30 min 0 120min mode 22 Priority mode switch temperature D 0 20 20 Note When user selects hot water supply and ZONE1 2 and Heat pump selects hot water supply mode the Maximum operating time of heat pump is 30 mins 41 Control Method Item Operation flow and applicable data etc 8 2 5 Simultaneous operations of hot water supply and cooling Operation For simultaneous operations of hot water supply and cooling basically cooling runs by a heat pump operation and Mode and hot water supply by a heater operation Hot water supply side Cooling side Normal Heater Heat pump Note that after a cooling heat pump operation is selected if the thermostat off status continues for 10 minutes and TTW lt 38 is met the operation switches to a hot water supply operation Hot water supply side Cooling side Cooling thermostat off Heat pump Stop 10 min passed When TTW 2 45 C FC changeable is met the operation returns to the normal mode 6 Boiler assisted heating operation This operation is enabled when DPSW13 2 is ON A boiler exists zone Heat pump operation A heat pump operation is usually performed J
57. mode Control 1 Determination condition TWO gt 20 C 2 TC TWO lt 12 C is continuously detected for 30 seconds or longer Or TWO lt 20 C TC TWO lt 4 C is continuously detected for 30 seconds or longer 2 Determination cancellation conditions The stop or operation mode is changed by the remote controller The mode is defrosting at the time of determination At the next time of defrosting the start condition is not met The mode is other than defrosting at the time of determination After cooling heating hot water heat pump restarts the start condition is not met for 10 minutes 3 Error display If freeze determination cancellation condition is not met A4 error is displayed 8 3 Piping freeze prevention control 3 This control applies only when defrosting is in operation 1 Determination condition During defrosting TWI 15 is continuously detected for 30 seconds or longer After the stop the unit restarts 2 Determination cancellation condition Atthe next time of defrosting the start condition is not met 3 Error display If freeze determination cancellation condition is not met A4 error is displayed 8 4 Piping freeze prevention control 4 When the value of Ps sensor is low freeze prevention is activated regardless of a heat pump operation mode 1 Determination condition Lo pressure sensor detects PS 0 2 MPa and 30 seconds passes defrosting and cooling During a defrosting operation for cooling and
58. or an injury may occur 2 2 Installing refrigerant pipe 2 2 1 Steel pipe and joint For refrigerant piping steel pipe and joints are mainly used Select those comply with JIS Japanese Industrial Standards for a service work Also use such clean piping materials that less impurities attach to the inside of pipe and joints Copper pipe Use copper pipe of the copper and copper alloy seamless pipe type with attach oil quantity of 40 mg 10 m or less Do not use pipe that is cracked distorted or discolored especially inside The expansion valve or capillary may get clogged with impurities Considering that Air to Water Heat Pump using R410A is higher in pressure than those using the conventional R22 be sure to select the material that comply with the standard Table 2 1 shows the thickness of copper pipe used for R410A Never use commercially available thin walled copper pipe of 0 8 mm thick or less Table 2 1 Wall thickness of copper pipe Wall thickness mm Nominal diameter Outer diameter R410A 3 8 9 52 0 80 5 8 15 88 1 00 Joints For the joint of copper pipe flared joint and socket joint are used Remove impurities from a joint before using it Flared joint A flared joint cannot be used for the copper pipe whose outer diameter is 20 mm or larger A socket joint can be used instead in that case Table 2 2 3 and 2 2 4 show the dimensions of flare pipe the end of flared joint and flare nuts
59. tap for each zone For 802H E Less than 20 Hz 20 Hz or more to less 45 Hz or more Temperature range than 45 Hz Maximum Maximum Maximum 10 lt TO W7 ws ws 5 C lt TO lt 10 C ws WB WD 3 C lt lt 5 C WD WD WE 10 C lt lt 3 C WE WE WE TO lt 10 C WF WF WF TO abnormal WF WF WF For 1102H E Less than 20 Hz 20 Hz or more to less 45 Hz or more Temperature range than 45 Hz Maximum Maximum Maximum 10 lt TO W7 ws W9 5 C lt TO lt 10 C ws WA WA 3 C lt lt 5 C WA WA WB 10 lt TO lt 3 WB WB WB lt 10 WD WD WD TO abnormal WD WD WD For 1402H E Less than 20 Hz 20 Hz or more to less 45 Hz or more Temperature range than 45 Hz Maximum Maximum Maximum 10 lt TO W7 Ws wg 5 C TO lt 10 C weg WA WB 3 C lt lt 5 C WB WB WC 10 C lt lt 3 C WC WC WC TO lt 10 C WD WD WD TO abnormal WD WD WD 60 Operation flow and applicable data etc 8 4 Outdoor unit control 6 Defrosting control This control defrosts the outdoor heat exchanger The temperature sensor TE sensor of the outdoor heat exchanger determines frost formation and then defrosting is performed in the 4 way valve reverse defrosting method 1 During a heating operation defrosting is performed when t
60. temperature sensor TO failure is detected set all the SW803 switches to OFF An abnormality now is indicated Latest abnormality SW803 1 only is ON Abnormality now SW803 All OFF Initial status st z Ea Le 123 Indication switching One or more LEDs of D800 through D804 lit yellow indicates that a failure occurred Indication 1 gt With the status above pressing the SW800 button for one second causes the yellow LED to blink Indication 2 gt Pressing again SW800 for one second or longer returns to Indication 1 gt The combination of Indication 1 gt and Indication 2 can determine what kind of abnormality Indication 1 gt Indication 2 Normal Abnormality occurs Press SW800 D800 yellow D801 yellow D802 yellow D803 yellow D804 yellow 6 D805 green Example of outlet temperature sensor failure O Light Blink Check code Outdoor LED Check and Action procedure indication No specific description indicates outdoor unit parts HO1 Indication 1 Indication 2 gt Compressor fails Power voltage is normal No gt 230ACV 23V Improve power line Yes Oooeoee side reactor lead power lead Check and correct wiring connection
61. the outlet cabinet and parting board 5 1 04 x 8 3 screws 3 Remove the screws of the outlet cabinet and bottom board Hex 24 x 10 2 screws 4 Remove the screws of the outlet cabinet and motor base 5 1 04 x 8 2 screws 5 Remove the screws ofthe outlet cabinet and water heat exchanger 5 1 04 x 8 1 screw 6 Remove the screws of the outlet cabinet and fin guard Hex 24 x 10 2 screws Water heat exchanger Outlet cabinet Motor base Paring board Fin guard Side cabinet 1 Perform the step 1 1 2 Remove the screws that fixes the inverter assembly and the side cabinet 5 1 04 x 8 2 screws 3 Remove the screws of the side cabinet and valve fixing board 5 1 04 x 8 2 screws 4 Remove the screws of the side cabinet and piping panel back Hex 4 x 10 2 screws 5 Remove the screws of the side cabinet and bottom board Hex 4 x 10 1 screw 6 Remove the screws of the side cabinet and water heat exchanger Hex 4 x 10 3 screws 7 Remove the side cabinet while shifting it upward Inverter hook Inverter assembly Side cabinet Valve fixing ud Piping panel back 137 Exchange parts name Work procedure Remarks Electric parts replacement 1 Control board 1 Perform the step 1 1 WARNING For 1 minute after the power is turned off do not disassemble the inverter to prevent an electric shock 2 Remove the co
62. the through hole of the parting board 6 Remove the fixed screws 4 for each while holding the fan motor so that it does not drop Notes in assembling fan motor Tighten the flange nut 4 95 Nem 5Okgf cm To prevent the fan motor lead from contacting the propeller fan adjust the length of fan motor lead fixing rubber so that it does not slack Attach the fan motor lead fixing rubber to the parting board so that the projection part is placed on the refrigerant cycle side Make sure that the reactor body and the fan motor lead do not contact each other Be sure to bind the removed binding tie by using the commercially available binding tie Note Fix the fan motor lead to the motor base using a metal tie so that the fan motor lead does not contact the propeller fan Propeller fan Turn it right to loosen Projection Refrigerant cycle side Fan motor 140 Exchange parts name Work procedure Remarks Compressor Compressor lead 1 Remove defective compressor 1 Perform refrigerant gas recovery 2 Perform the step 1 1 and step 2 and 3 3 Remove the piping panel Front Remove screws of the piping panel Front and bottom board Hex 24 x 10 2 screws Remove screws of the piping panel Front and Back Hex 4 x 10 1 screw 4 Remove the piping panel Back Remove screws of the piping panel Bac
63. the water 2 way valve water 3 way valve mixing valve and circulating pump Operation check mode 1 Preparation Turn all of the remote controls OFF for the hot water supply and heating Turn off the hydro unit and the outdoor unit Remove the front panel of the hydro unit 2 Operation check 1 Turn on the hydro unit and the outdoor unit 2 Set 5 06 2 to ON 3 Rotate switch SW01 to position 1 and press tactile switch SWO7 for 5 sec or longer 4 Rotating the rotary SW01 allows to check each operation 5 Set the SWO06 OFF to finish ro Check contents Remark 1 None 2 2WV_W Alive for approx 2 sec not alive for 3 sec 3 3WV_W 4 Mixing valve Alive for 30 sec in the forward direction Alive for 30 sec in the reverse direction 5 Built in AC pump Alive not alive for 20 sec 6 Extended AC pump 1 Alive not alive for 20 sec 7 Extended AC pump 2 Alive not alive for 20 sec Reserved 8 Water heat exchange backup Repeat heater 1 heater 2 and OFF The built in AC pump operates heater every 20 sec 9 Hot water cylinder heater Alive not alive for 10 sec 10 Backup heater Alive not alive for 10 sec The built in AC pump and external AC pump operate 11 Check the alarm output Output for 10 sec no output for 10 sec 12 Check the boiler output Output for 10 sec no output for 10 sec 13 Check the defrost output Output for 10 sec no output for 10 sec 14 Check the
64. to backside of 0200 0801 Med Tk DB02 0803 heat sink Ventilation flue of heat sink No Remove obstadies is cleared Blower is not blocked pe emo e SERES Deal with short circuit Short circuit etc l Yes Check outdoor control board If defective replace it P15 Indication 1 Indication 2 gt Gas leakage detection Correct defective portion O 0000 F gas leakage No Appropriate refrigerant amount Yes Pulse motor valve is normal No Service valve is fully opened Open fully service valve Yes nG Discharge sensor CN603 Yes ain collapse Temperature sensor check Suction sensor CN600 ex Check outdoor control board If defective replace it No gt Correct defective portion Re charge refrigerant Replace defective parts Repair or replace pipe Correct connector Replace sensor 95 Check code Outdoor LED indication Check and Action procedure No specific description indicates outdoor unit parts P19 Indication 1 Indication 2 gt 4 way valve invert failure 4 way valve operates normally Check piping temperature at the time of cooling heating operation Yes Temperat
65. valve coil lead not to contact the discharge pipe To fix the sensors and leads use the black piping cover for heat resistance and a commercially available binding tie for heat resistance Attach the soundproofing board Inward winding Outward winding as shown in the right figure through between the compressor and between the piping and parting board Place the compressor lead and the compressor case thermostat so that they fall into between the inward winding and outward winding of the soundproofing board Piping cover Binding tie TS sensor Outlet pipe Black piping cover for heat resistance and Binding tie for heat resistance Sensors TL TO TE TD TS Pulse motor valve coil lead Keep sensors away for not contacting outlet pipe Suction pipe Pulse motor valve coil lead Piping cover Binding tie Sensors TL TO TE TS Pulse motor valve coil lead Compressor Wind ferrite core with lead 0105 Compressor lead positioning standard Bind the lead at 2 positions with a commercially available binding tie Place soundproofing board Outward winding through between suction pipe and accumulator Suction pipe Place soundproofing board Inward winding Soundproofing board Upper E Soundproofing board E ia Outward winding Do not make gap between soundproofin
66. winding with a tester Type Red DA220A2F 22L Resistance 802H E value 1 DA422A3F 25M Red White 1 04 1 16 1102 1402H E White Black 1 04 1 16 Black Red 1 04 1 16 At 20 White Black Outdoor fan motor Measure the resistance value of each winding with a tester Type iu Location Resistance value ICF 280 A60 1 Red White 802 White Black 32 6 3 30 2 280 100 1 1102 1402 oe Red White 1102 1402H E White Black 14 8 1 50 White Black Black Red 4 way valve coil Measure the resistance value 3 1473 1030 VHV 01AP552B1 Pulse motor valve coil Measure the resistance value Type 1 White e Resistance CAM MD12TF 15 6 Red ae value 802 3 Red White Orange 42 500 Red Yellow Blue 42 50 Condition 20 Yellow Blue 4 2 4 1 Black 6 Gray M Resistance 1102 1402H E Location value 3 Red Grey Black Red 43 49 Q Grey Yellow Orange 43 49 Condition 20 Yellow Grey Orange 2 6 4 Suction temperature TS sensor Remove the connector and measure the resistance value with a tester Heat exchange temperature 10 20 kQ Normal temperature TE sensor T 5 Outdoor temperature TO 0 C 10 C 20 C 30 C sensor Sensor Outdoor heat exchange temperature sensor TE 33 8 20 4 12 6 8 0 Suction temperature sensor TS Discharge temperature TD Remove the
67. with dip switches 1 Overview Using 3 dip switches SW802 SW803 SW804 and 2 push button switches SW800 SW801 can make settings available and confirm operations For operation Part number Specification Operation details SW800 Press button switch This switch switches the indications of LED D800 to D804 on the outdoor control board SW803 Dip switch SW801 Press button switch This switch enables users to perform a special operation for maintenance and inspection SW804 Dip switch SW802 Dip switch This switch performs initial settings See 8 4 6 For display Part number Specification Operation details D502 Amber LED Signal display signals from the hydro unit of communication between hydro unit and outdoor unit serial communication D503 Green LED Signal display signals from the outdoor unit of communication between hydro unit and outdoor unit serial communication Yellow LED Abnormality indication D800 to D804 2 2 Medi ma any of D800 to D804 indicates that the outdoor Setting SW803 to other than OFF shows details with LED indication Green LED Energization indication D805 This LED lights when the outdoor unit is energized During a special operation with the SW801 or SW804 operation this LED blinks Note All the LEDs have no color when off SW804 SW801 Special operation switch Operations for maintenance and inspection
68. zone Heat pump operation Boiler operation 1 A heat pump boiler operations 2 are performed and a heater operation is performed in the Hot water supply side TO zone Heat pump operation J zone Heat pump boiler operation 1 In J zone the hydro unit setting has a priority and when the set temperature is reached the boiler output also becomes OFF Setting 3E to 1 makes the boiler has a priority and even if the hydro unit set temperature is reached the boiler output remains ON 2 The boiler operation only gives boiler instruction from the hydro unit through the option board Related FC FC No Setting item Default Setting available range 23 Heat pump only Simultaneous operation switching TO 10 20 20 temperature E 3E Hydro unit setting Boiler set temperature priority switching 0 Priority on 1 Priority on boiler setting hydro unit setting 42 Operation flow and applicable data etc 8 2 Operation Mode and Control Method 7 Hot water boost operation A hot water boost operation boils water quickly to the set temperature H 75 C FC 09 1 How to operate When pressing the HOT WATER BOOST button after pressing the remote controller HOT WATER button a heat pump operation in progress in the heating side switches to in the hot water side and continues the operation regardless of the hot water supply sta
69. 0 T3 20 10 10 Outside air temperature TO C Auto Curve temperature shift Without Auto Curve individually set the set temperature can be shifted in the range of 5k of the current setting The set temperature is valid only when Auto operation is in progress 1 Press the AUTO TEMP button for 4 seconds or longer See display C The remote controller FC setting screen appears 2 71 2 Seta temperature shift range with the TEMP v D EE JE z TIME DAY STEP HOT WAT button for temperature setting 5k to 5k ep cD 3 Press the SET button If lights the status is e confirmed 4 Pressing the TEST 4 button moves the unit to the normal 3 4 1 stop state 110 5 Time Setting 1 Press the TIME Y button for 4 seconds or longer The screen moves to the time setting mode See display C Day time and indications blink Time setting is available during an operation Specify a day to be set Press the DAY button to select the current day The W symbol moves along above the days W moves by each button press from MO through SU SCHEDULE NIGHT ZONE 1 2 HOT WATER gt gt oO J TIME DAY STEP OPERATE MODE WATER BOOST Set time 1 HI We Im K ea SET CL TEST FROSTPAOTECTION AUTO TEMP ANTI BACTERIA Use the TIME Y button to set time Long press changestime 4 CO JOC display by 1
70. 0 minutes Pressing the SET _ button ends the time setting Ending 2 the time setting changes the days and time to the lit state and returns to the normal display and indications go out 111 6 Scheduled Operation Setting Schedule setting makes the following modes to be flexibly set hot water supply heating cooling hot water supply and heating hot water supply and cooling and stop and set temperature 6 1 How to set scheduled operation Preparation Set the remote controller time 1 Press the remote controller SCHEDULE C button for 4 seconds or longer See display C dr ir gt HOT WATER 4 s ME I e gt l Moves to the schedule setting mode B fc The following blink 2 and P1 indications items to be Knie eie sum lt i TEMP SELECT set the set temperature of ZONE1 2 and HOT WATER previous set temperature su day oXr rwECTRYERISAXSU and time 2 27 4 1 CA gue 2 Specify a day to be set 6 i a 5 SCHEDULE NIGHT ZONE 1 2 HOT WATER Press the DAY _ button to move day to the day tobe set 7 lt Co moves by each button press from MO through SU From SU TME DAY STEP OC 98 the symbol moves to MO through SU Every day 4 r h 3 DENM Press th
71. 180DCV or higher the board is good 96 Check code Outdoor LED indication Check and Action procedure No specific descripti on indicates outdoor unit parts P20 Indication 1 Indication 2 gt ooeoee Hi pressure protection operation No sence valve is fully opened Yes Reset the power source and perform Open fully service valve Heating season Heating operation a trail operation according to the season Cooling season Cooling operation Outdoor TL sensor is normal Measure resistance Y Yes fan is free from crack or looseness Y Yes ue fan operates normally Y Yes Something prevents outdoor unit heat exchange Clogged heat exchanger short circuit y No Check for refrigerant overcharged clogged cycle pipe break abnormal overload etc If defective repair defective portion Ne Replace sensor No Check outdoor fan If defective replace or tighten it No gt Check the same item as those for P22 abnormality Yes Remove the disturbing element Y Something prevents heat exchange of hydro unit Remove the Clogged filter Clogged heat exchanger Short circuit y No Check for refrigerant overcharged clogged cycle pipe br
72. 2 Remove the coil from the pulse motor valve body by pulling upward while rotating the coil 2 How to attach 1 Fix the coil by exactly adjusting the coil positioning projection to the recess of the pulse motor valve body Recess Pulse motor valve body Positioning projection Motorized control valve coil Fan guard 1 How to remove 1 Perform the step 1 1 and step 2 Note Perform a replacement work on cardboard or cloth to prevent the product from being damaged 2 Remove the outlet cabinet and put with the fan guard side down 3 Release the hooks 8 positions of the fan guard 2 How to attach 1 Press the hooks 8 positions with hands from the front side to fix them Note Check that all the hooks are fixed to the given positions Fan guard Bellmouth Outlet cabinet S ZR SENSN Hooks 153 1 2 Periodic Inspection Items For a long term safe operation of this equipment perform periodic inspection and parts replacement Inspection items Hydro unit HWS 802 E 1402 E Frequency Periodic inspection details 1 Insulation measurement Power source circuit Heater Annually Insulation measurement with a mega tester circuit 2 Power source measurement No load voltage Annually Electronic voltage measurement 230V 23V 3 Operation check Annually Hot water supply Heating
73. 3 circulating pump The same for hot water supply heating and exchanger after stopping the operation continues for 1 min cooling after the compressor is stopped ON on the remote control will not operate the compressor It When the outdoor temperature TO sensor detection 4 will not operate even after the reboot delay timer elapsed temperature is 20 C or lower the heat pump will not operate in order to protect the compressor and the heater will operate instead When the power is turned on it starts operation without The auto restart operation may be working operating the remote control The antifreeze operation may be working 5 f the TWI TWO or THO sensor detects a temperature below 4 C the operation changes from circulating pump 2 circulating pump heater 65 9 3 Outline of the determination diagram The first determination of whether a defective part is in the hydro unit or the outdoor unit can be performed by the following method 9 3 1 Procedure of defect diagnosis In the case of a defect please apply the following procedure in order to find the defective part Defect in Hydro unit Confirm the check code on the remote control display Check code A01 A12 Abnormality in the communication or setting Check code L07 L16 Check code FXX Abnormality in the outdoor unit or hot water tank unit 9 3 2 How to determine from the ch
74. 5 70845 01919 LLSL 99M 1 1 b j qewa 1 1 3 Z0LESINH 55 f eum 20209 10240 0020 0080 0000 1 Jopeed 000000777777 22 5 3 Hot Water Cylinder Unit Double pole thermal cut out Blue 06 TTW sensor Hot water cylinder heater y To hydro unit Supply 230 V from hydro unit Cable size 1 5 mm minimum 23 6 Key Electric Component Rating 6 1 Hydro Unit HWS 802XWHM3 E 802XWHT6 E Model name No Component name Type name Rating M3 E T6 E 1 Circulating pump 0 5025 65 130 230 V 0 54 2 Backup heater 6 kW T 400 V 3N 6 kW AC230 V 3 kW compatible 3 Backup heater 9 kW 400 3N 9 kW Water heat exchange 10 25 C 4 temperature sensor sensor 5 Water inlet temperature sensor o 10 KQ 25 C TWI sensor 6 Water outlet temperature sensor 10 25 TWO sensor Heater outlet water temperature 10 25 7 sensor THO sensor 8 Floor inlet temperature sensor 5 10 25 C TFI sensor 9 Pressure switch Operating pressure 4 15 MPa 0 0 3 MPa 10 Low pressure sensor Operating pressure 0 20 MPa 11 Bimetal thermostat auto Operating temperature 75 3 C DC42 V 0 2A is Bimetal thermostat si
75. AT 1 011 43100437 PANEL FRONT PIPING 1 012 43100438 PANEL BACK PIPING 1 013 43100440 PLATE ROOF 1 014 43100452 PANEL SIDE 1 015 43100453 PANEL AIR OUTLET 1 016 43100454 PANEL FRONT 1 017 43100455 BASE ASSY 1 018 43107276 HANGER 2 019 43107277 GUARD FIN BACK 1 020 43107278 GUARD FIN SIDE 1 021 43109422 GUARD FAN 1 A 022 43120244 FAN PROPELLER PB521 1 023 43122113 BELL MOUTH 1 024 4312 042 MOTOR 280 60 1 1 025 43146686 VALVE PACKED 9 52 1 026 43146695 VALVE PULSE MODULATING 1 027 43146724 VALVE BALL SBV JA5GTC 1 ROHS 1 028 43148232 ACCUMULATOR ASSY 1 029 4314G278 CONDENSER ASSY 1 A 030 4314N024 COIL VALVE 4WAY VHV 01AP552B1 1 031 4314Q031 STRAINER 1 032 4314Q056 STRAINER 1 A 033 43160591 LEAD ASSY COMPRESSOR 1 034 43194029 BONNET 1 035 43197183 BOLT COMPRESSOR 3 159 Inverter Assembly HWS 802H E A Control board assembly 711 704 bL essesezd Prono Terminal A Sensor assembly 703 F4 TD TL sensor 45 Sensor assembly 701 TS TE TD sensor 706 Te
76. C Remote control Anti bacteria operation cycle 7 days Every day to 10 days OD 44 Control Method Item Operation flow and applicable data etc 8 2 9 Night set back NIGHT SET BACK operation Operation A night set back operation performs heating at 5 K lower and cooling at 5 K temperatures against the remote controller Mode and set temperature from the setting start time 22 00 to the end time 6 00 every day Note Set the remote controller time before starting a NIGHT SET BACK operation The set time can be changed with remote controller FC Related FC FC No Setting item Default Setting available range Remote controller Night set back start Time setting 22 00 0 00 23 00 OE Remote controller Night set back end Time setting 6 00 0 00 23 00 OF 26 Night set back setting Temperature width 5 deg 3 20 deg 10 FROST PROTECTION operation A frost protection operation performs heating at the set temperature RSC F 15 FC 1 How to operate Pressing the remote controller ZONE1 2 button and then the FROST PROTECTION button starts a heating operation at the set temperature of 15 Pressing again the FROST PROTECTION button cancels the FROST PROTECTION operation The remote controller displays F as the temperature during FROST PROTECTION Aset temperature change during a FROST PROTECTION operation cancels the operation Rela
77. C is not detected for 20 minutes the abnormal stop counter is cleared 10 times of compressor abnormal stop stops the operation of heat pump and confirms the abnormality Display A11 If the heat pump operation is switched to other operation the abnormality detection counter is reset to 0 2 Control operation S normal R1 Increase compressor frequency by 1 2 Hz every 7 pes os 60 secs R2 slow up R2 Increase compressor frequency by 0 6 Hz every T8 60 secs Decrease compressor frequency to 70 every P slow down 10 secs T10 P Decrease compressor frequency by 3 Hz every O down 10 secs Ard e Q Keep compressor frequency Forcible stop TC TWO TWI T7 T8 T9 T10 T11 TWI 10 10 0 8 0 6 0 4 0 3 0 10 TWI 15 10 5 8 5 6 5 4 5 3 0 15 TWI 20 11 0 9 0 7 0 5 0 3 0 20 lt TWI 11 5 9 5 7 5 5 5 3 0 49 Item Operation flow and applicable data etc 8 3 2 Heater control Hydro Unit 2 1 Hot water supply operation Control During a hot water heat pump operation the unit energizes the hot water cylinder heater 2 75 kW when all the following conditions met Note that when the hot water supply set temperature TSC_F is reached the unit stops energizing the heater When 30 minutes has passed after the hot water heat pump operation started The water inle
78. E D Zone Accumulate compressor operation status of TE 2 C for 150 mins Jumper switching O Short circuit x Open J805 J806 d 1102 1402H E d 802H E 150 mins Factory setting 150 mins Factory setting 90 90 mins x 60 60 mins 30 30 ON i Compressor ON Outdoor fan off EERS ON 4 way valve OFF 500pulse 200pulse Outdoor PMV 61 Operation flow and applicable data etc 8 4 Outdoor unit control 7 Winding heating control 1 This control energizes the inactive compressor instead of the case heater to warm the compressor The purpose is to prevent the refrigerant from staying inside the compressor 2 After the unit is installed failure to perform energization for the given time period may cause the compressor to fail Also when starting an operation long after the power left off first energize the compressor before starting the operation in the same way as a trial run 3 Energization is determined by the TD sensor and TO sensor If the TO sensor fails the TE sensor automatically takes over the operation Determine whether the TO sensor fails by checking the LED outside 4 If TD is 30 or higher the energization stops Usual Not energized l Energization 4 c c i condition i TD 30 C 10 Intermittent
79. E ASSY 1 1 017 43107274 GUARD FIN SIDE 1 1 018 43107275 GUARD FIN BACK 1 1 019 43107276 HANGER 3 3 020 43109422 GUARD FAN 2 2 A 021 43120244 FAN PROPELLER PB521 2 2 022 43122113 BELL MOUTH 2 2 023 43126037 MOTOR FAN ICF 280 A100 1 2 2 024 43146676 JOINT CHECK 1 1 025 43146686 VALVE PACKED 9 52 1 1 026 43146687 VALVE 4 WAY STF 0401G 1 1 027 43146724 VALVE BALL SBV JA5GTC 1 ROHS 1 1 028 43148170 ACCUMULATOR ASS Y 1 1 029 4314G266 CONDENSER ASSY DOWN 1 1 030 4314G269 CONDENSER ASSY UP 1 1 031 43143023 VALVE PLUS MODULAING UKV 25D100 1 1 A 032 4314N024 VALVE 4WAY VHV 01AP552B1 1 1 A 033 4314N025 PMV UKV A038 1 1 034 43140031 STRAINER 1 1 035 43140032 STRAINER 1 1 A 036 43160591 LEAD ASSY COMPRESSOR 1 1 037 43194029 BONNET 1 1 163 Inverter Assembly HWS 1102H E 1402 A Reactor N Control board assembly 711 A Terminal 3P 706 Terminal A NEM FE AN Sensor assembly i 0 0 Sensor holder TO TD TL sensor Sensor assembly 701 TS TO sens
80. K Jeqg ion Cycle Water System D 5 1901 1201 Pod ov EF 8 1195 ssed Ag Sunnat 1 mae i one 201991024 lt Kjejes O eoo 1 Po fe 1 je90 Jayeay jejsoog 198 91156914 NLA JUBA Ss ue4 7 1 Water System Diagram 7 Refr 32 Installation example of water circuit 1 Hydro unit 2 Shower Bath Kitchen Floor heating Outdoor unit 3 Shower Bath Kitchen HEATING ONLY Panel radiator 2 way valve HEATING COOLING Outdoor unit 1 zone 4 Outdoor unit 1 zone 5 Shower Bath Kitchen AGA Outdoor unit 6 Shower Bath Kitchen AGE Conventional boiler Hot water tank Temp sensor Floor heating Outdoor unit The water circuit for a system without buffer tank 1 2 3 5 requires 5 or more branches of Floor heating or Radiator etc Less than 5 branches may cause a flow deficiency In this case please provide a buffer tank and secondary pumps as shown in 4 33 7 2 Refrigeration Cycle System Diagram HWS 802XWHM3 E 802XWHT6 E 802H E Outdoor unit Heating Hot water supply Defrosting Cooling Low pressure sensor Pressure switch Pla
81. PMV is controlled with the usual target value of 2 to 4 K for 802H E or 1 to 4 K for 1102 1402H E temperature difference between TS sensor and TE sensor For both cooling and heating if the cycle is overheated PMV is controlled using the TD sensor The usual target value is 91 for a cooling operation and 96 for a heating operation A defective sensor may cause liquid back flow or abnormal overheat of the compressor significantly shortening the compressor life If the compressor or other equipment is repaired first check that the resistance of each sensor or the refrigerant cycle has no problem then start the operation 2 Discharge temperature release control This control detects an abnormality of the refrigerant cycle or compressor to perform failure prevention This control reduces operation frequency if the PMV control does not lower the outlet temperature or if the outlet temperature rapidly rises The frequency control is broken down to the unit of 0 6 Hz to stabilize the cycle f the discharge temperature detects the abnormal stop zone the compressor stops and then restarts after 150 seconds The abnormality detection counter is cleared when the operation continues for 10 minutes If detected 4 times the error code is displayed and the compressor does not restart An abnormality could occur due to too less refrigerant PMV defective or cycle stuck For details about an error displayed see the check code list
82. S 1402H E 56 4Hz 117 14 Display Function of Set Temperature and Other Settings B Sensor temperature display calling Details This function calls the service monitor mode from the remote controller to show the data of the remote controller the hydro unit and outdoor unit Procedure 1 Press the TEST 4 and CL buttons at the same time for 4 seconds or longer to call the service monitor mode The service monitor lights up and the temperature of CODE No 00 displays at first See display C 2 Pressthe TEMP v button for temperature setting to change the item code to one to be monitored The following table shows the item codes Item code Data name Unit 00 Control temperature Hot water cylinder C 01 Control temperature Zone1 C 02 Control temperature Zone2 C 5 03 Remote controller sensor temperature 04 Condensed temperature C 5 06 Water inlet temperature TWI 8 07 Water outlet temperature TWO 08 Water heater outlet temperature THO C 09 Floor inlet temperature TFI 0 Hot water cylinder temperature TTW C 0B Mixing valve position step OE Lo pressure Ps x 100 MPa Item code Data name Unit 60 Heat exchange temperature TE C 61 Outside air temperature TO C 5 62 Discharge temperature TD C 5 63 Suction temp
83. SY 1 1 1 1 1 219 37595720 RING ASSY 1 1 1 1 1 A 220 4306V226 BOARD ASSY 1 1 1 1 1 A 221 4316V338 BOARD ASSY 1 1 1 1 1 A 222 43152401 CONTACTOR MAGNETIC 2 3 3 2 3 A 223 43158187 TRANSFORMER 1 1 1 1 1 A 224 43154156 RELAY LY 1F 1 2 2 1 2 A 225 43054107 RELAY LY1F 1 1 1 1 1 A 226 43160297 FUSE 4 6 8 4 6 227 43060059 HOLDER 4 6 8 4 6 A 228 43160565 TERMINAL BLOCK 20A 1 1 1 1 1 A 229 43160566 TERMINAL BLOCK 6P 20A 1 1 1 1 1 A 230 4306A130 TERMINAL BLOCK 9P 20A 1 1 1 1 1 A 231 43160576 TERMINAL BLOCK 20A 1 1 1 1 1 A 232 43160579 TERMINAL 1 1 1 1 1 A 233 43160561 TERMINAL 4P 1 1 1 1 1 A 234 43050425 SENSOR ASSY SERVICE 3 3 3 3 3 A 235 43150320 SENSOR ASSY SERVICE 2 2 2 2 2 236 37595722 GASKET LIQUID 1 1 1 1 1 157 Outdoor Unit HWS 802H E 021 158 Safety Location Number of pieces per unit A No Part No Description HWS 802H E 001 43019904 HOLDER SENSOR 1 002 43032441 NIPPLE DRAIN 1 A 003 43041798 COMPRESSOR DA220A2F 22L 1 A 004 43046493 COIL PMV 1 005 43046451 VALVE 4 WAY STF 0218G 1 006 43047246 BONNET 3 8 IN 1 007 43047669 NUT FLANGE 1 008 43049739 CUSHION RUBBER 3 A 009 43050407 THERMOSTAT BIMETAL 1 010 43063317 HOLDER THERMOST
84. THO is met Re starts the pump when a boiler instruction is given and 65 gt TWI and TWO and THO is met Operation when DP SW10 1 ON HP operation only is selected The pump stops only when the hot water cylinder heater is in operation The pump does not stop with the heating thermostat off 3 2 Circulation pump Enhanced pump P2 Pump type AC motor rated voltage 230V directly connectable to the unit with the rated output of up to 200W DP SW10 3 enables the pump P2 to be set either to interlock or non interlock with the built in pump P1 Setting to non interlock sets the pump1 to usual energization 4 Flow switch operation Setting the flow switch to On or OFF determines whether water flows in the water heat exchanger Model Criteria for water flowing HWS 802 E HWS 1402 E Criteria for water not flowing Flow 13 L min or more Flow less than 13 L min Flow 17 5 L min or more Flow less than 17 5 L min When start the hot water supply heating or cooling operation failure to determine whether water flows does not energize HP the backup heater and booster heater The A01 error code display also blinks in this case 52 Item Operation flow and applicable data etc 8 3 5 Mixing Valve control 2 temperature heating control Hydro Unit To set different radiator unit supply temperatures or floor heating supply temperatures the unit performs Mixing Valve Control control
85. TOSHIBA ESTIA Leading Innovation gt gt gt HFC AIR TO WATER HEAT PUMP R410A SERVICE MANUAL Model name Hydro Unit Outdoor Unit HWS 802XWHM3 E HWS 802H E HWS 802XWHT6 E HWS 1102H E HWS 1402XWHM3 E HWS 1402H E HWS 1402XWHT6 E HWS 1402XWHT9 E Hot Water Cylinder HWS 1501CSHM3 E UK HWS 2101CSHM3 E UK HWS 3001CSHM3 E UK Contents 1 SAFETY PRECAUTIONS RR oaa QUEUE een ea 3 2 NEW REFRIGERANT 410 6 2 1 Safety During Installation and 6 2 2 Installing refrigerant pipe 0 7 2 2 1 Steel pipe and 7 2 2 2 Processing of piping materials 8 2 3 T00l8 erREE CEPS TS EDU Mte edi mu emu EV ERN C PER EE 10 2 3 1 Necessary 018 7 10 2 4 Recharging 11 2 5 Brazing of PIPES Ate we aes Tree dq 13 2 5 1 Materials 2 0 4 13 2 5 2 F liX e dee Desa eck inna DEOR Bae eua qu A e 13 2 5 3 Brazlng bate rb eR ERE UU
86. Upper limit of heating Zone2 limited temperature 55 37 55 1D Lower limit of heating Zone2 limited temperature 20 20 37 40 Control Method 1 Operation start condition Pressing the ZONE1 2 button and then OPERATION MODE starts a cooling operation 2 Operation mode selection An operation mode is determined according to the temperature of TWI sensor Heat pump operation selection 1 2 When gt F d zone in the right figure is met the heat pump operation is selected Thermostat status OFF When TWI lt F e zone in the right figure is met the thermostat status OFF is selected 3 Operation stop condition When either of the following conditions is met the cooling operation stops The remote controller gives a stop instruction The operation is switched to heating 1 When the outside temperature is 10 or below cooling does not start even if the TWI temperature falls into d zone Related FC Item Operation flow and applicable data etc 8 2 3 Cooling operation Operation Pressing the ZONE1 2 button and then OPERATION MODE starts a cooling operation Mode and TWI Heat pump operation cooling TSC F Temperature set with remote controller TSC F Diff 2k Thermostat off operation TSC is a cooling temperature set with the remote controller FC No Setting item Default Setting avail
87. able range 02 Cooling mode availability 1 No 0 Yes 18 Upper limit of cooling setting temperature 25 18 30 19 Lower limit of cooling setting temperature 10 10 18 4 Simultaneous operations of hot water supply and heating At the time of Hot water supply and Heating simultaneous operation the operation mode is select as follows depending on the outside air temperature f zone Operation with hot water supply priority A heat pump operation is performed in the hot water supply side and a heating operation in the heating side g zone Operation with heating priority A heat pump operation is performed in the heating side and a heating operation in the hot water supply side Operation mode by zone TO Hot water supply heat pump priority operation Diff 5deg D Note Heating heat g zone pump priority operation Diff 5deg 20 Heater operation zone Zone Hot water supply side Heating side f Heat pump Stop g Heater Heat pump h Heater Heater mode changes as follows Zone Hot water supply side Heating side f Heater Heat pump When TTW 2 45 C FC changeable is met the operation ends f zone and returns to f zone Note that after a heat pump operation for Hot water supply is selected in f zone when the operation moves to a heater operation for hot water and then 5
88. air temperature of T1 0020 20 0055 55 0035 35 2 Set temperature C with outside air temperature of 0 C 0020 20 0055 55 0030 30 2F Set temperature D with outside air temperature of 0020 20 0055 55 0025 25 30 Settemperature E with outside air temperature of 20 0020 20 0055 55 0020 20 31 Zone2 ratio with Zone1 as Auto 0000 0 0100 100 0080 80 C 33 Heater control down time 0000 5 mins 0001 10 mins 0001 10 mins 0002 15 mins 0003 20 mins 34 Heater control up time 0000 10 mins 0001 20 mins 0000 10 mins 0002 30 mins 0003 40 mins Frost protection function Yes No 0000 No 0001 Yes 0001 Yes Frost protection set temperature 0010 10 C 0020 20 C 0015 15 C 3C Water 2 way energization logical reverse control 0000 No 0001 Yes Reverse 0000 No Heating HP Boiler priority switching when using boiler 0000 Priority on HP 0001 Priority on boiler 0000 Priority on HP 107 Remote controller function code table FC Item Details Fist shipment 05 24H 12H display switching 0 24H display 1 12H AM PM display 0 24H display 09 Nighttime low noise mode 0 Disabled 1 Enabled 0 Disabled OA Nighttime low noise start time 0 23 0 00 to 23 00 22 22 00 OB Nighttime low noise end time 0 23 0 00 to 23 00 06 06 00 OC Anti bacteria start time 0 23 0 00 to 23 00 22
89. ality confirmation Power failure P05 H03 P04 000000 Heat sink overheat failure 000000 Gas leakage detection P07 L29 P15 L29 000000 4 way valve reverse failure P19 L29 eeoeoo Hi pressure protection operation P20 P04 eooeoo Fan drive system failure P22 eoeooo Compressor drive P26 Compressor rotor position failure 123 P29 2 3 Sensor Current Compressor operation frequency PMV openness indication The values detected by controller such as temperature sensor or current values can be easily checked Temperature sensor C Current Compressor PMV openness operation pulse TD TE TS TO TL frequency SW803 5 803 SW803 SW803 5 803 5 Ere T es SW803 Lr m e TC TCJ SW803 SWe03 gc LT oe gt 5 122 LED indication less than 25 0 19 25 21 20 39 20 16 40 59 15 11 60 79 10 6 80 99 Oeoceeco 5 100 119 0 4 120 139 5 9 140 159
90. are tool Pipe flaring Yes Note 1 Yes Copper pipe gauge for Flaring by conventional 2 2 adjusting projection margin flare tool Yes Note 1 Note 1 3 Torque wrench For 215 9 Connection of flare nut Yes No No 4 Gauge manifold Evacuatin fri g refrigerant 5 Charge hose charge run check etc Yes No No 6 Vacuum pump adapter Vacuum evacuating Yes No Yes Electrical balance for 7 refrigerant charging Refrigerant charge Yes No Yes 8 Refrigerant cylinder Refrigerant charge Yes No No 9 Leakage detector Gas leakage check Yes No Yes 10 Charging cylinder Refrigerant charge Note 2 No No Note 1 Flaring for RA10A by using the conventional flare tool requires projection margin adjustment This adjustment requires copper pipe gauge or other instrument Note 2 A charging cylinder for R410A is currently under development General tools Conventional tools are available In addition to the above dedicated tools the following equipment also available for R22 is necessary as the general tools 1 Vacuum pump 4 Reamer 9 Hole core drill 065 Use this by attaching vacuum pump 5 Pipe bender 10 Hexagon wrench adapter 6 Level vial Opposite side 4mm 2 Torque wrench For 26 35 7 Screwdriver 11 Tape measure 3 Pipe cutter 8 Spanner or Monkey wrench 12 Metal saw Also prepare the following equipment for other work methods or run check 1 Clamp meter 3 Insulation resistance meter 2 Thermometer 4 E
91. at Temperature increase error hot water Heating 1 Check the hot water cylinder sensor 03 supply TTW 1 76 When the TTW sensor exceeds 85 Hot water 2 Checkthe hot water cylinder thermal x cut out Antifreeze operation 1 Almost no or little water flow 1 TWO gt 20 C condition Dirt clogging in the water piping 2xTC TWO lt 12 C is detected system 2 TWO lt 20 C condition The water piping is too long TC TWO 4 C is detected 2 Check the heater power circuit Heating2 3 TWIs 10 C is detected during Power supply voltage breaker Hotwater 77 defrosting power supply connection Cooli ooling4 3 Set the presence of the backup heater 4 Check the water inlet water outlet and heat exchange TWI TWO TC sensors Piping antifreeze operation 1 Check the heater power circuit Activating the heater under the condition Power supply voltage breaker of TWO lt 4orTWI lt 4orTHO lt 4 does not power supply connection 05 achieve TWO TWI THO2 5 C after 30 2 Check the water inlet water outlet 1 78 67 Diagnostic functional operation Number of Check naf abnormalities Detailed code Operational cause Backup Automat Determination and action for item present ic reset confirmation Pressure switch operation 1 Almost no or little water flow The pressure switch operates for 300 2 Defect of the flow switch A07 sec con
92. ated dimension for R410A A mm Nominal Outer diameter Wall thickness diameter mm mm Flare tool for RA10A Conventional flare tool clutch type Clutch type Butterfly nut type 3 8 9 52 0 8 0 to 0 5 1 0 to 1 5 2 0 to 2 5 5 8 15 9 1 0 0 to 0 5 1 0 to 1 5 2 0 to 2 5 Table 2 2 4 Dimension of flare for R410A and flare nut Nominal Outer diameter Wall thickness Dimension mm Flare nut width diameter mm mm A B 3 8 9 52 0 8 13 0 13 2 97 20 18 5 8 15 9 1 0 19 1 19 7 15 9 24 5 26 Figure 2 2 2 Relationship between flare nut and flare surface Flare connecting procedure and precautions 1 Make sure that the flare and connecting portions do not have any flaw and dust 2 Correctly align the flared surface and the connecting axis 3 Tighten the flare with designated torque by means of a torque wrench The tightening torque for R410A is the same as that for the conventional R22 If the torque is weak gas leakage may occur If it is too strong the flare nut may crack and may be made non removable When choosing the tightening toque comply with values designated by products Table 2 2 5 shows reference values NOTE When applying oil to the flare surface be sure to use oil designated by the product Using any other oil deteriorates the lubricating oil possibly causing the compressor to burn out Table 2 2 5 Tightening torque of flare for RA10A
93. ations 109 The capability of the hydro unit has not x x 5 1 90 been set HWS 802xx E 0012 HWS 1402xx E 0017 Setting error L16 When has not been set while x x Check the body DP SW12 2 3 1 90 ZONE2 has been set 69 Defect mode detected by the outdoor unit O Possible x Not possible Diagnostic functional operation Number of Check NE abnormalities Detailed code Operational cause Backup Automat Determination and action for item P present ic reset confirmation TD sensor error 1 Check the resistance value and 85 04 Open or short circuit in the discharge connection of the discharge sensor 1 99 temperature sensor TD TE sensor error 1 Check the resistance value and 85 06 Open or short circuit in the heat connection of the heat exchange 1 99 exchange temperature sensor temperature sensor TE TL sensor error 1 Check the resistance value and 86 F07 short circuit in the heat connection of the heat exchange 1 99 exchange temperature sensor temperature sensor TL TO sensor error 1 Check the resistance value and 86 F08 Open or short circuit in the outdoor connection of the outdoor 1 99 temperature sensor temperature sensor TO TS sensor error 1 Check the resistance value and F12 Open or short circuit in the suction connection of the suction 1 100 temperature sensor tempera
94. c reset confirmation TFI sensor error Check the resistance value and F17 Open or short circuit in the floor x disconnection of the floor inlet 1 87 temperature sensor temperature sensor TFI THO sensor error Check the resistance value and F18 Open or short circuit in the heater outlet disconnection of the heater outlet 1 88 temperature sensor temperature sensor THO Detection of THO disconnection error Check for any disconnection of the F19 When gt 15 is detected and x heater outlet temperature sensor 1 88 30 sec elapsed THO TFI sensor error ti fth F20 When TWO TFI 30K is detected and x x iW M bs 1 89 floor inlet temperature sensor TFI TFI TWI 5K is detected Low pressure sensor error Check for any disconnection body When PS 0 07 MPa is detected for 2 or connection wiring of the low F23 sec or more pressure sensor 1 89 Check the resistance value of the low pressure sensor EEROM error th eat h 229 Inconsistency is detected once without x 1 90 control board verify ACK after writing to EEPROM F30 Extended IC error X x Replace the water heat exchange 1 90 When the extended is abnormal control board 107 Communication error x x Replace the water heat exchange 1 90 Individual hydro units have a group line control board Communication error Check the setting of the FCO1 ili i capability specific
95. connector and measure the resistance value with a tester sensor Temperature 6 0 C 10 C 20 C 30 C Sensor Discharge temperature sensor TD 161 3 99 0 62 4 40 2 104 10 unit and Outdoor Unit Settings Hydro unit 1 Hydro unit Setting 1 1 Setting switch names and positions 1 2 SW02 System switching 1 SW02 Switching details Factory setting Remarks 02 1 OFF 02 2 OFF 02 3 OFF 02 4 Room thermostat No OFF 1 3 SW10 Pump switching SW10 Switching details Factory setting Remarks 10 1 OFF 10 2 OFF 10 3 Enhanced pump2 Interlock Yes No Yes OFF 10 4 OFF 1 4 SW11 Heater Yes No switching SW11 Switching details Factory setting Remarks 11 1 Internal backup heater Energized Yes No Energized OFF 112 Hot water cylinder heater Energized Yes No Energized OFF 11 3 Booster heater Energized Yes No Energized OFF 114 OFF 1 5 SW12 System switching 2 SW12 Switching details Factory setting Remarks 12 1 Hot water supply Yes OFF 12 2 ZONE1 Yes OFF 12 3 ZONE2 No OFF 124 OFF 1 6 SW13 System switching 3 SW13 Switching details Factory setting Remarks 13 1 3WV SPST SPSD Specification switching SPST OFF 13 2 Boiler placement No OFF 13 3 Auto Restart of power outage Yes OFF 13 4 OFF
96. d cables connected to other parts from the relay board 1 Connector 1 TB 01 Terminal block 3P White CNO2 Water heat exchanger board 5P White CN10 TB 05 9P Terminal block 9P White Note When removing the connector release the safety lock of the housing 3 Release the 3 stoppers of the relay board to remove the board Relay board Electric parts assembly 1 How to remove 1 Perform the step 1 1 2 Disconnect the connectors and lead cables connected to other parts from the water heat exchanger board 1 Connector CN200 Float switch 3P Red CN201 Pressure switch 2P White CN202 Bimetal thermostat Yellow CN203 TC sensor 2P Yellow CN204 TWI sensor 3P Brown CN205 TWO sensor 2P Red CN206 THO sensor 3P White CN207 Lo pressure sensor 2P Blue CN212 Lo pressure sensor 4P White CN603 Pump 3P Yellow Disconnect the heater power source cable For backup heater and hot water cylinder heater from the MgSW Note When removing the connector release the safety lock of the housing 3 Remove the fixed screws ST2T Q4 x 8 2 screws 4 Remove the electric parts assembly by pulling it toward you while pulling it upward because the assembly back side has a hook holding structure Electric parts assembly 129 Exchange parts name Work procedure Remarks Side board 1 Side board Right 1 Perform the step 1 1 2 Remov
97. ding to the difference Remote controller Temperature settings TSC H TSC F Hydro unit THO TWO 5 H THO for hot water supply TSC F TWO for heating cooling Hz signal correction Number of compressor rotation detection 2 signal correction S Operation HZ Inverter output change Number of compressor rotation change Compares the Hz signal correction amount and the current operation Hz and changes the compressor output The control details are the same for hot water supply heating and cooling Water outlet temperature Compressor frequency changeable range 10 Hz to 70 Hz 802 1402H E 10 Hz to 60 Hz 1102H E 48 Item Operation flow and applicable data etc 8 3 1 2 High temperature release control Hydro Unit A heat pump operation is performed as shown in the table below according to the TC sensor detecting temperature Control Forthe detected temperature TC TWO 2 degree of a heat pump operation is used The values of T7 through T10 vary depending on TWI See the table below If the compressor frequency instruction from the hydro unit is less then 10 Hz the compressor stops TC gt 62 causes the compressor to stop abnormally When the compressor restarts 140 seconds after the stop and gt 62 is not detected for 20 minutes the abnormal stop counter is cleared 10 times of compressor abnormal stop stops the operati
98. dthe latest warning detail is displayed The warning details of the current warning is displayed See display C 2 To monitor other failure history press the TEMP Cv CA button for temperature setting to change the 2 failure history number item code Item code 01 Latest gt Item code 01 Old Note The failure history contains the last 4 failures 3 Pressing the TEST 4 button returns to the normal display Notes E alison 7 E TEMP SELECT SCHEDULE NIGHT ZONE1 2 HOTWATER 9 ME o J TIME DAY STEP OPERATEMODE HOT WATER BOOST OO G Ks SET CL TEST ANTI BACTERIA 200 QS Ce Do not press the CL button Pressing the button deletes all the failure history of the hydro unit If the button is pressed and the history is deleted perform power cycle If the current failure is the same as the one occurred last time before deleted the history may not record the current failure 119 Outdoor unit 16 Outdoor Unit Setting 16 1 Refrigerant recovery control Although HFC refrigerant is Ozone depletion potential 0 emission control is applied to it as a greenhouse effect gas This model has a switch for the outdoor unit to perform an environment friendly refrigerant recovery operation pump down when the model is replaced or discarded How to operate 1 Remove the water i
99. e Remarks 1 procedure Note Wear gloves when performing the work Front panel Failure to do so may cause an injury when accidentally contacting the parts 1 How to remove 1 Stop the operation by remote controller and turn off the breaker 2 Remove the front panel Hex 24 x 10 2 screws After unscrewing the screws remove the front panel while pulling it downward 3 Disconnect the power source cable and connecting cables between hydro and outdoor from the cord plank and terminals 4 Remove the top board Hex 24 x 10 5 screws Top board 2 How to attach 1 Attach the top board Hex 24 x 10 5 screws Atthis time insert the back side fin guard between the top board and the water heat exchanger back side 2 Connect the power source cable and connecting cables between indoor and outdoor to the terminal and fix them with the cord clamp Note Insert the back side fin guard The power source cable and connecting cable between the top board and the between hydro and outdoor units must be fixed heat exchanger back side along the connecting piping by using a cable tie so that the cables do not contact the compressor gas side valve gas side piping and outlet pipe 3 Attach the front panel Hex 24 x 10 2 screws 136 Exchange parts name Work procedure Remarks Outlet cabinet How to remove 1 Perform the step 1 1 2 Remove the screws of
100. e SET button to confirm the day to be set COS 209 3 Specify a step from among steps 1 to 8 Press the STEP button to specify a step to be set 3 6 7 2 7 4 The selection moves by each STEP button press among 1 to 8 C and L Selecting C copies the day details already set Go to 7 Selection L clears the setting details Press the SET C button to confirm the step to be set 4 Specify set time operation mode and set temperature Time setting Use the TIME button to time Operation mode Press HOT WATER for hot water supply ZONE 1 2 for heating or ZONE1 2 for cooling and then press OPERATE MODE 27 Pressing HOT WATER or ZONE1 2 again displays indicating stop When an operation mode is set O appears for heating for cooling or for hot water supply and also the temperature set last time is displayed Temperature setting Use the SELECT button to selecta mode gt 3 4 and set temperature with the TEMP CA button Press the SET button to confirm the set time operation mode and set temperature to be set 5 Repeat 2 through 4 If only one schedule is set the setting applies to all the time period after the set time Two schedule settings are recommended 6 Pressing the SCHEDULE button ends the schedule setting Ending the schedule setting blinks the light 2 Pressing the SET button during the 5 second blinking changes to lit and the schedul
101. e fixing board ST2T 04 x 8 2 screws 3 Remove the refrigerant piping fixing board ST2T 04 x 8 3 screws 4 Remove the nut of the heater connection 5 Remove the fixed screws of the electric parts box fixing board ST2T Q4 x 8 4 screws 6 Remove the side reinforcing board left ST2T 04 x 8 6 screws 3 for inside 3 for outside 7 Remove the water heat exchanger fixing band ST2T 04 x 8 6 screws 8 Remove the water heat exchanger assembly The heater connection uses a packing for water seal Be careful not to scratch the packing otherwise water leakage may occur How to attach 1 Attach a new water heat exchanger assembly in the reverse order of the removal 2 Restore all piping and wiring as in the original state and check that there is no water or refrigerant leakage After the water heat exchanger assembly replacement repair open the water supply source valve and water piping source valve to pass water through the hydro unit and check that the connection has no water leakage After connecting the refrigerant pipe check that the connection has no refrigerant leakage Water piping fixing Nut Electric parts box fixing Water heat exchanger fixing band The piping structure slightly differs in 14kW and 8kW specifications Water heat exchanger assembly 135 2 Outdoor Unit 2 1 HWS 802H E No Exchange parts Work procedur
102. e one dot chain line indicates wiring at the local site and the dashed line indicates accessories sold separately and service wires respectively 2 O and indicates the terminal board and the numberals indicate the terminal numbers 3 2272 P C board Be sure to fix the electric parts cover surely with screws Otherwise water enters into the box resulting in malfunction 21 5 2 Outdoor Uni ueJBeip oJp u y ees jun 104 p preoq pejuud sejeorpul E7777 10 10589290 euordo ue Sojeoipul eui peusep eui ejiuw sejeoipur 2 Jequinu euiuue eui jequunu eu e sejeoipul 1 OVA 082 YOL 95 OWA 08 52 esny eseo 10sseJduio7 Josuas aunyesadwia Josuas 04 104 967 0 Josuas al Sb Qi M Josues ainyesadwia Josuos 1109 1 ue4 yey jun malas Jewod I 10990 20989 O euuM 20980 1 Y09N9 E 00845 1081
103. e operation starts 7 Howto program Select C in 3 and press the SET 9 button Copy source is determined Press the DAY button to move to the day of copy target Pressing the SET button overwrites the program setting to the copy target To set more repeat step 2 through 4 Pressing the SCHEDULE button ends the schedule setting 112 6 2 How to start and cancel schedule operation Operation start Without schedule operation set press the remote controller SCHEDULE button blinks Pressing the SET button during the 5 second blinking changes 7 to lit and the schedule operation starts lt Operation cancel gt With schedule operation set press the remote controller SCHEDULE button 2 blinks Pressing the CL button during the 5 second blinking causes to put out and the schedule operation is cancelled 7 Frost Protection Setting This setting keeps a room with weak heating when users are not home for long hours 1 Press the ZONE1 2 button to start a heating operation This is available only for a normal heating operation E cin No frost protection setting is provided to hot water supply and cooling _ 2 Pressing the FORST PROTECTION button displays the amp 3 10 symbol and for temperature setting See display C TEMP SELECT The heating operation of 15 C is set In in 2 2 section
104. e the fixed screws of the side board Right ST1T Q4 x 10 5 screws 3 Remove the fixed screws of the side board Right and the manometer fixing board ST1T 24 x 10 2 screws 2 Side board Left 1 Remove the fixed screws of the side board Left ST1T 04 x 10 5 screws Side board Right Side board Left Upper board 1 Perform the step 1 1 and step 6 2 Remove the fixed screws of the upper board ST1T Q4 x 10 4 screws Bottom board 1 Perform the step 1 1 and step 6 2 Remove the fixed screws of the bottom board ST1T 04 x 10 4 screws 130 Exchange parts name Work procedure Remarks Expansion vessel To replace a water circuit part first close the water supply source valve and the valve of water pipe connected to the hydro unit 1 Perform the step 1 1 step 5 6 and 7 2 Remove the fixed band of the expansion vessel ST1T 04 x 8 4 screws 3 Remove the expansion vessel connection three piece flare nut Replace the packing to new one when installing the expansion vessel Part code Service parts 37595721 Service packing assembly After the expansion vessel replacement repair open the water supply source valve and water piping valve to pass water through the hydro unit and check that the expasion vessel connection has no water leakage Expansion vessel Expansion vessel Fixed band
105. ead SW802 CN04 White wires Hydro outdoor communication signal LEDs eno Earth lead wire D503 Green Outdoor Hydro Connecting ies ipsae D502 Amber Hydro gt Outdoor 03 250 V 10 A Black 30 HWS 1102H E 1402H E Fan motor output Lower motor output Upper Compressor output terminals CN300 White CN400 White CN202 Electrolytic capacitors CN201 CN200 es 2 2 Wo ERE Sa Case thermostat connector NE E 1 j NM e CN609 Blue e NOD PES A j a4 m 4 2 M E Power circuit protection fuse F100 250V 3 15A plastic case 4 way valve connector CN701 White Compressor ON output connector CN704 Blue External input connector CN610 Yellow Special operation switches SW801 i SW804 SS Display change over switches adii SW800 SW808 E Temperature sensor connectors TL CN604 White TD CN603 White TO CN602 Yellow TE CN601 White TS CN600 White 2 4 EMT A Alive abnormal display LEDs D800 804 Yellow D805 Green Power supply connection lead wires PMV connector P01 Red A CN710 White P02 White 4 way valve protection fuse PO3 Black Initialization switch F700 250V 3 15A SWe02 plastic case Earth lead wire Connecting cable connector Hydro outdoor communication CNO4 White signal LEDs D503 Green Outdoor gt Hydro Connecting cable pr
106. eak abnormal overload etc If defective repair defective portion Ue uu disturbing element 97 Check code Outdoor LED indication Check and Action procedure No specific description indicates outdoor unit parts P22 Indication 1 Indication 2 gt ooeooe Blower system failure Power voltage is normal No Check wiring 230ACV 23V Request power source repair M Yes When not energized the fan motor can be smoothly rotated by hand Fan motor coil resistance is normal No Repl f Between red white leads 12 20 Between white black leads 12 200 Between black red leads 12 20 Check outdoor control board If defective replace it Outdoor fan sole operation check 1 With the dip switch SW804 set as in the table below pressing SW801 for approx 1 second can check the outdoor fan sole operation Perform this check to determine which of upper or lower fan has a problem When SW801 is pressed again for 1 second or when 2 minutes has passed the fan stops 2 After the check set all the SW804 dip switches to OFF Outdoor fan sole operation 50 804 51 801 S 123 SI ON Press P26 Indication 1 Indication 2 gt
107. eck code on the remote control If the defect is limited by the check code displayed on the remote control please repair the defect based on the table on the next page The check codes are separated into two groups software and hardware errors Since a hardware error cannot be cancelled without a part replacement etc please perform a repair If its abnormality is determined the abnormality is noticed by indicating the check code on the remote control check code display part while letting off a buzzer gt 20 1 4 ZONE2 4 99 LIL LIL cose UNIT No H STEP Check code display part TEMP SELECT CO SCHEDULE NIGHT ZONE 1 2 HOT WATER o gt NE J TIME DAY STEP OPERATEMODE HOT WATER BOOST 90 K e SET CL TEST ROSTPROTECTION AUTO TEMP ANTI BACTERIA CX CE gt JE 9 3 3 How to cancel a check code on the remote controller ZONE1 2 HOT WATER 1 1 Press or button on the operation side to clear the check code 2 Press 2 to stop a buzzer for an abnormality only Although the above procedure cancels the check code the hardware error will be displayed again until the hardware repair is completed 66 9 3 4 How to diagnose by error code Defect mode detected by the water heat exchange min elapsed
108. ected to the compressor by using a burner WARNING When removing the piping by burning the solder take enough care for a fire going off at the moment the wax melts if oil remains inside the piping Note Do not make fire flame contact with the 4 way valve and pulse motor valve This may cause an operation failure 11 Pull out the discharge and suction pipes of the refrigerant cycle upward 12 Remove the compressor bolts that fix the compressor to the bottom board 3 bolts 13 Pull the compressor out toward you Note The compressor weighs 15 kg or more Two people should be required to handle it Remove Outlet pipe Compressor bolt 3 bolts 142 Exchange parts No name Work procedure Remarks 6 2 Attach the compressor Compressor lead 1 Attach the compressor in the reverse order of the removal Note Be sure to replace the compressor lead after the compressor replacement Compressor lead spare parts code 43160591 At this time wind the ferrite core with the compressor lead for 4 times Bind the compressor lead that is long with a commercially available binding tie When doing this be careful for the compressor lead not to contact the discharge pipe Fix the removed sensors and pulse motor valve coil lead to the outlet and suction pipes through the piping cover by using a binding tie At this time be careful for the sensors and pulse motor
109. ed during an AUTO operation the operation continues An AUTO operation works with a heating operation only not with a cooling or a hot water supply operation Auto Curve ZONE1 4 ts ate RB BUID esses Oe MED wa ga x ay 5 ae 8 e Related FC FC No Setting item Default Setting available range 27 Set temperature shift with heating set to Auto 0 5 to5k 29 Outside air temperature T1 temperature 10 C 15 0 C 2B Outside air temperature T3 temperature 10 C 0 15 C 2 Set temperature when out side air temperature is 20 40 C 20 55 20 Set temperature when out side air temperature is 10 T1 35 20 55 2 Set temperature when out side air temperature is 0 30 20 55 2F Set temperature when out side air temperature is 10 C T3 25 20 55 30 Set temperature when side air temperature is 20 C 20 20 55 31 Auto Curve ratio of 8096 0 100 ZONE2 46 Item Operation flow and applicable data etc 8 2 12 Nighttime low noise operation Operation A night time low noise operation reduces operation frequency and the number of outdoor fan rotations for a certain period Mode and during nighttime as noise control for neighborhood Control Method Maximum operation frequency 40 2 Hz Hot water supply Heating Cooling Maximum fa
110. ee SCHEDULE NIGHT ZONE 1 2 HOT WATER setting Co gt ME o The value in the DATA item changes TIME DAY STEP TEMODE HOT WATER BOOST pe OO Gs 4 Press the SET C D button If the blinking changes to lit the 7 NE o BE e status is normal 2 To change the item to be set go to 2 5 1 5 Pressing the TEST 4 button moves the unit to the normal stop state 106 Function code table FC Item Details First shipment 01 Water heat exchanger capacity 0012 802XWH E Depends on type 0017 1402XWH E 02 Cooling Non cooling switching 0000 Cooling 0001 No cooling 0001 No cooling 07 Hot water HP operation mode upper time limit 0000 0 mins 0120 120 mins 0030 30 mins 08 Hot Water Boost operation time 0003 30 mins 0018 180 mins 0006 60 mins 09 Hot Water Boost set temperature 0040 40 0080 80 0075 75 OA Anti bacteria set temperature 0070 70 0080 80 0075 75 OB Anti bacteria holding time 0000 0 mins 0060 60 mins 0030 30 mins OC Mixing valve drive time 0003 30 secs 0024 240 secs 0006 60 secs 18 Upper limit of cooling set temperature 0018 18 0030 30 0025 25 19 Lower limit of cooling set temperature 0010 10 0018 18 0010 10 Upper limit of heating ZONE1 set tempera
111. ee characteristic table on page 101 Yes TWI sensor characteristic is normal No Replace TWI sensor See characteristic table on page 101 Yes TWO sensor characteristic is normal No See characteristic table on page 101 Replace TWO sensor Yes Replace water heat exchange control board F23 Error Lo pressure sensor detach failure Lo pressure sensor is detached CN207 212 Attach lo pressure sensor hen operation is stopped lo pressure sensor is normal 1 Replace lo pressure sensor Replace water heat exchange control board 1 How to determine When operation is stopped 89 F29 Error failure A failure is detected in the IC10 non volatile memory on the water heat exchanger board during a hot water supply unit operation Replace the service board fthe unit does not have EEPROM inserted when the power is turned on or if EEPROM data read or write is unavailable automatic address mode repeats In this case the intensive control unit displays 97 Abnormal Approx 3 mins Approx 1 mins Power on Handy remote Setting Reboot controller displays disappears reset Setting Repeat F30 Error Enhanced IC failure Enhanced IC on water heat exchanger control board is abnormal Replace the water heat exchanger control board to a service board L07 Error L07 In group control one or more individual for group address exist
112. eeing the LED on the outside board can determine which abnormality occurs Power source failure Vdc Hi pressure protection operation Case thermostat operation Indication 1 lt Indication 2 gt Case thermostat operation See H04 details e e e Indication 1 Indication 2 gt Power source failure Vdc See P05 details O Indication 1 gt Indication 2 gt Hi pressure protection operation gt See P20 details 5 Indication 1 Indication 2 gt Power source failure voltage defective open phase oeeoeQo Power voltage abnormally Yes drops or rise 230 23V Check electric work No Check outdoor control board If defective replace it 94 Check code Outdoor LED indication Check and Action procedure No specific description indicates outdoor unit parts P07 Indication 1 gt Indication 2 gt O e 06000 Heat sink overheat failure The screws are loose in motor drive element Q200 300 400 of outdoor control board and Apply radiation grease as needed Tighten screws rectifier DBO1 02 03 es gt dir Radiation grease was not applied b msu ae 9
113. ement conditions outside air temperature 7 or 6 water supply temperature 30 C outlet temperature 35 C refrigerant piping length 7 5 m no height difference capacity gt 97 COP gt 95 operating noise lt 3 dB 2 Cooling performance measurement conditions outside air temperature 35 C water supply temperature 12 C outlet temperature 7 C refrigerant piping length 7 5 m no height difference capacity gt 97 COP gt 95 operating noise lt 3 dB 3 The remote controller should be shipped with the hydro unit Use two 1 5 meter wires to connect the hydro unit with the remote controller 4 The outdoor unit operating noise is measured at the point of 1m away from the unit back surface center and 1m high from the ground The hydro unit operating noise is measured at the point of 1m away from the unit front surface center The value of the operating noise varies depending on room structure where the unit is installed 5 Do not leave the hydro unit at 5 C or below 6 Check the water piping for leakage under the maximum operating pressure 15 Unit name Hydro unit HWS 1402XWHM3 E 1402XWHT6 E 1402XWHT9 E Outdoor unit HWS 1102H E HWS 1402H E Heating capacity 1 KW 112 14 0 Cooling capacity 2 KW 10 0 11 0 Variable range of compressor frequency 10 60Hz 10 70 Hz Power source Single phase 50Hz 230V Operati
114. er S gt AV HWS AMS11E S G BLK BLACK BLU BLUE N CAUTION 37 oe 57 2 BRW BROWN GRN GREEN Le eem GRY GRAY ORANGE Electric shock may happen 7 PNK PINK RED RED Don t touch the electric parts WHI WHITE YEL YELLOW x5 x x xx x x zx B m zm 4 TE Te Byz 13 nye 222 Qoo 12 1 0000000 Option pe WHI CN203 CN204 CN205 CN206 CN207 212 214 213 TD iA pida CRIO RY BLU YEL RED WHI BLU WHI WHI 212 212 Relay hs __ Boiler control O P 10 BLU 2 A eR IRIS neo oo Aa 1217 Kef D Alerm oP EH 11 BLU 20 TBI CHE E SIS San lay quiso i HAS 12 2 B B GPN YEL CH13 WHI BRW 0 000 a 212 Relay Operation O P MTS mY pace MCC 1217 NT GRN Defrost O P WHI J20 1 Relay 9 2 p c board ra MCC 1431 jYEL Photocoupler input SI Emergency stop uP 2 H RED P c board 70 4 Hot water cylinder P C board SAVE MCC 1214 thermostat YP 6 1511 rrr REA BLK Du jm IW es Photocoupler input a ona penoad 251 Cooling thermostat E o DL ccu 570 Heali
115. er cable for backup heater Set breaker for backup heater to ON or Check indoor electronic wiring Replace backup heater and safety valve Replace TWI TWO and THO sensors Flow switch is normal Yes Remove sufficiently excess air Excess air noise comes from inside pump Secure water circulation amount Waste stuck inside water circuit 12 M or longer water pipe to a branch or 5 or less branches Chattering noise comes from Circulation flow shortage Operation at high outside emperature and at 50 or highe Yes TWO sensor is attached to pipe No Yes Pressure switch No is normal Yes Replace water heat exchange control board 79 A07 Error Pressure switch operation Hot water supply Heating operation Replace flow switch Remove waste Place buffer tank and the second pump Lower set temperature Attach TWO sensor Replace pressure switch A08 Error Lo pressure sensor lowering operation failure Cooling Defrosting operation No Flow switch is normal Replace flow switch Yes Remove sufficiently excess air Secure water circulation amount Waste stuck inside noise comes from i water circuit inside pump Remove waste 12 M or longer water Place buffer tank and the second pump pipe to a branch or 5 or less branches Chattering noise comes from flow switch
116. erature TS 65 Heat sink temperature THS 5 6 Current A 8 6D Heat exchanger coil temperature TL C 70 Compressor operation Hz Hz 72 Number of revolutions of outdoor fan lower rpm 73 Number of revolutions of outdoor fan upper rpm 74 Outdoor PMV position x 1 10 pls Item code Data name Unit FO Micro computer energized accumulation time x 100h F1 Hot water compressor ON accumulation time x 100h 5 F2 Cooling compressor ON accumulation time x 100h o F3 Heating compressor ON accumulation time x 100h 4 Built in AC pump operation accumulation time x 100h Hot water cylinder heater operation accumulation time 100h F6 Backup heater operation accumulation time x 100h F7 Booster heater operation accumulation time x 100h 3 Pressing the TEST 4 button returns to the usual display 118 cnn 9n 5 TEMP SELECT 69 gt D ee SCHEDULE NIGHT ZONE1 2 HOTWATER gt ME oO J TIME DAY STEP OPERATEMODE HOT WATER BOOST Me OO SET CL TEST AUTOTEMP ANTI BACTERIA Qs Ce Ce TT 15 Failure History Calling Function Details This function calls the previous failure details Procedure 1 Press the TEST and SET C buttons at the same time for 4 seconds or longer to call the service check mode The service check lights up with CODE No 01 displayed at first an
117. fault Setting available range 02 Cooling mode availability 1 No 0 Yes 1 Purpose Cooling 2 Details This section performs cooling operation according to cooling conditions specified for the steps in the left 3 Operations 1 Set the ZONE 1 2 remote controller button to ON 2 The hydro unit controller starts to transmit a cooling operation signal to the outdoor unit control unit 3 The hydro unit controller performs the operation controls shown in the left while also controlling the circulation pump water 2 way valve and water 3 way valve 4 The outdoor unit controls the compressor outdoor fan motor pulse motor valve and 4 way valve based on the operation signals transmitted by the hydro unit 38 Item Operation flow and applicable data etc 8 2 The following shows the operation modes and controlled objects Operation Mode and Operation Heating and Hot water Cooling and Hot water mode Control Method Heat pump select Heat pump select Heat pump select Heat pump select Hot for heatin for hot water for coolin for hot water Cooling Heating water g supply 9 supply only only p Hot Hot Hot Hot Heating water Heating water Cooling water Cooling water Controlled side supply side supply side supply side supply object side side side side Heat pump
118. g boards Upper and Outward winding 143 Exchange parts No name Work procedure Remarks 6 Compressor 3 Vacuuming Compressor lead 1 Connect the vacuum pump to the charge port of the gas piping valve to operate the vacuum pump 2 Perform vacuuming until the vacuum low pressure gauge shows 1 mmHg Note Open fully the pulse motor valve before vacuuming With the valve closed vacuuming between the outdoor unit liquid valve and the pulse motor valve may fail How to make pulse motor valve forcible full open Turn on the electric leakage breaker Set the SW804 dip switch 1 and 3 on the outdoor unit control board to ON Press SW801 on the outdoor unit control board for 1 second or longer After pressing SW801 for 1 second or longer turn off the electric leakage beaker within 2 minutes 4 Charge refrigerant 1 Add refrigerant whose amount is defined according to the piping length from the valve charge port HWS 802H 1 8kg 7 Pulse motor valve coil 1 How to remove 1 Perform the step 1 1 and step 3 2 Remove the coil from the pulse motor valve body while pulling the coil upward to release the spring holding the copper pipe 2 How to attach 1 Fix the spring to the copper pipe Pulse motor valve coil Spring Pulse motor valve body 144 Exchange parts name Work procedure Remarks Fan guard 1 How to re
119. g a cable tie so that the cables do not contact the compressor gas side valve gas side piping and outlet pipe 3 Attach the front panel Hex 24 x 10 2 screws Front panel 146 Exchange parts name Work procedure Remarks Outlet cabinet How to remove 1 Perform the step 1 1 2 Remove the screws of the outlet cabinet and parting board ST1T 04 x 8 4 screws 3 Remove the screws of the outlet cabinet and bottom board Hex 24 10 2 screws 4 Remove the screws of the outlet cabinet and motor base 5 1 04 x 8 2 screws 5 Remove the screws of the outlet cabinet and heat exchanger ST1T 04 x 8 1 screws 6 Remove the screws of the outlet cabinet and fin guard Hex 24 x 10 2 screws Heat exchanger Outlet cabinet Motor base Paring board Side cabinet 1 Perform the step 1 1 2 Remove the screws that fixes the inverter assembly and the side cabinet 5 1 04 x 8 2 screws 3 Remove the screws of the side cabinet and valve fixing board 5 1 04 x 8 2 screws 4 Remove the screws of the side cabinet and piping panel back Hex 24 x 10 2 screws 5 Remove the screws ofthe side cabinet and bottom board Hex 24 x 10 1 screws 6 Remove the screws of the side cabinet and fin guard heat exchanger Hex 24 10 5 screws 7 Remove the side cabinet while shifting it upward inverter hook Valve fixing board 147
120. ge Approx 325V Although these This function operates for 10 seconds After that it becomes OFF controls are available during an operation SW804 SV valve relay operation RY702 CN702 for check basically perform Sets SV valve relay 702 to them when no When SW801 is pressed again or after 2 minutes the operation returns to the normal operation is in may control progress m HWS 1102 and 1402H E do not have the parts mounted so this operation is Performing these unavailable controls during an Heater output relay operation RY703 CN703 for check Hid 17 Sets relay for optional heater RY703 to ON angerously Eu When SW801 is pressed again or after 2 minutes the operation returns to the normal Pressure change E control za swso4 External output relay operation RY704 CN704 for check Sets relay for external output RY704 to ON o When SW801 is pressed again or after 2 minutes the operation returns to the normal sweo4 No operation particularly E T9 0 5 SW804 External output relay operation change Note Do not use this setting m Note 1 The forced trial operation with this setting cannot be cancelled by the remote controller in the hydro unit Be sure to cancel the operation from the outdoor unit Press again SW801 for 1 second 126 1 1 How to Exchange Main Parts WARNING Turn off the
121. h it in the reverse order of the removal X Remote controller cable 3 Water heat 1 How to remove exchanger board 1 Perform the step 1 1 MCC 1511 2 Disconnect the connectors and lead cables connected to other parts from the water heat exchanger board 1 Connector CN100 TB 01 3P Connector 5P White CN101 Trans 3P White CN102 Trans 6P White CN200 Float switch 3P Red CN201 Pressure switch 2P White CN202 Bimetal thermostat Yellow CN203 TC sensor 2P Yellow CN204 TWI sensor 3P Brown CN205 TWO sensor 2P Red CN206 THO sensor 3P White CN207 Lo pressure sensor 2P Blue CN212 Lo pressure sensor 4P White CN213 TB 06 4P Terminal block 3P White CN214 TB 06 4P Terminal block 2P White CN305 TB 01 3P Terminal block 3P Green CN501 Relay board 6P Yellow CN601 Relay 05 3P Red CN602 TB 04 6P Terminal block 7P White CN603 Pump Yellow CN604 Relay 06 TB 04 Terminal block 7P Blue CN605 Relay 01 Relay 02 Yellow CN606 Relay 03 Relay 04 Blue 2 Round shape terminal 100 Ground ST2T 04 x 8 1 wire Note When removing the connector release the safety lock of the housing 3 Release the 6 stoppers of the water heat exchanger board to remove the board 128 Exchange parts name Work procedure Remarks Relay board MCC 1431 1 How to remove 1 Perform the step 1 1 2 Disconnect the connectors and lea
122. h voltage electric shock leading to death or injury After the power is turned off the high pressure capacitor is still charged with high voltage Forbidden Do not turn on the power breaker after removing the front panel cabinet Failure to do so may cause a high voltage electric shock leading to death or injury N WARNING Check earth ground Before starting failure diagnosis or repair check that the ground wire is connected to the unit ground terminal An unconnected ground wire could cause an electric shock if electric leakage occurs e Ifthe earth ground is not properly connected ask an electrical worker for rework of the ground connection Ground wire of class D grounding N WARNING No modification Do not modify the unit Do not disassemble or modify the parts also A fire an electric shock or an injury may occur Use specified parts Use the specified parts when replacing them Using parts other than specified ones may cause a fire or an electric shock For details see the parts price list Keep children away from unit Keep any person including children other than service engineers away from a failure diagnosis or repairing place A tool or disassembled parts may cause an injury Advise the customer to keep the third persons including children away from the unit Insulation treatment After connecting a cut lead with a cri
123. hange Code No 2 5 O e o E ANTI BACTERIA DAOR ce IE e J The 0d and indication blink 4 4 Press the TIME Y 4 button to set a desired cycle 5 1 Pressing SET changes DATE set time 0 and indication to be lit and the setting is confirmed 5 Press the TEST button to exit the anti bacteria time setting mode 115 10 Hot Water Boost Setting This setting heats the water whenever necessary by using the heat pump and hot water cylinder heater 1 Press the HOT WATER button to start a hot water supply operation Normal hot water supply operation C zonei 2 0 2 TU WE TH FR SA SU 2 Pressing the HOT WATER BOOST button displays the symbol See display C f TEMP The set temperature does not change The hot water supply operation CA of 75 C starts pe lt lt IIIT Im amama SCHEDULE NIGHT ZONE 1 2 HOT WATER o TIME DAY STEP OPERATEMODE HOT WATER BOOST HOT WATER BOOST operation with the heat pump and heater ends when Ma OO the water temperature reaches 75 however the normal hot water supply SET CL 5 ms AUTOTEMP ANTI BACTERIA operation automatically starts after 60 minutes even if the temperature is ee 5 2 not as high as 75 3 Pressing the HOT WATER BOOST button again makes 2 3 disappear and the HOT WATER BOOST ends lt How to set HOT WATER BOOST operation time and temperature gt
124. he TE sensor meets any of the conditions in A through D zones 2 During defrosting when TE sensor maintains 12 C or higher for 3 seconds or 7 C lt TE lt 12 C for a minute the defrosting ends Also when defrosting continues for 10 minutes even if the TE sensor temperature is below 7 C the defrosting ends 3 After the defrosting stop the compressor for approx 40 seconds before starting a heating operation 4 Switching the jumper J805 and J806 of the outdoor control board can change the time of d above mentioned Factory setting 150 minutes Heating operation starts TE 0 10 15 39 45 55 d min ges n 10 to 15 minutes after the heating i operation starts the lowest value of 217777 MD is recorded as and the 2 c25 lowest temperature of To as ToO Inside brackets For 802H E To Normal A Zone Maintain TE ToO To gt 3 C for 20 secs B Zone Maintain TE ToO To gt 2 C for 20 secs C Zone Maintain x TE 5 23 for 20 secs 1102 1402H E Maintain TE 25 C for 20 secs 802H E D Zone Accumulate compressor operation status of TE 2 for 150 mins To Normal A Zone Maintain TE gt 3 C for 20 secs B Zone Maintain TE gt 2 C 20 secs C Zone Maintain 2 TE 5 23 for 20 secs 1102 1402H E Maintain TE 25 C for 20 secs 802H
125. he pulse motor valve may fail How to make pulse motor valve forcible full open Turn on the electric leakage breaker Setthe SW804 dip switch 1 and 3 on the outdoor unit control board to ON Press SW801 on the outdoor unit control board for 1 second or longer After pressing SW801 for 1 second or longer turn off the electric leakage breaker within 2 minutes 4 Charge refrigerant 1 Add refrigerant whose amount is defined according to the piping length from the valve charge port HWS 1102H 1402H 2 7kg Wind ferrite core with compressor lead for 4 times Compressor lead Ferrite core 0 to 50 Compressor lead positioning standard Place soundproofing board Outward winding through between suction pipe and header pipe Overlap soundproofing board Outward winding at this position Header pipe Suction pipe Discharge pipe Overlap soundproofing board Inward winding at this position through between compressor outlet pipe and suction pipe Do not make space between soundproofing boards Upper and Outward winding Soundproofing board Upper Rivet Make the other end of the line go through under the rivet E Soundproofing board Outward winding 152 Exchange parts name Work procedure Remarks Pulse motor valve coil 1 How to remove 1 Perform the step 1 1
126. he resistance value of the heat sink temperature sensor TH Detection of gas leak 1 Check the refrigeration cycle gas When the discharge temperature sensor leak TD exceeds 106 for consecutive 10 2 Check that the service valve is fully min open p45 When the suction temperature sensor 3 Defect of the pulse motor valve 4 95 TS exceeds 60 C for cooling or 40 C 4 Check for a kinked piping for heating for 10 consecutive min 5 Check the resistance value of the discharge temperature sensor TD and the suction temperature sensor TS The 4 way valve inversion error 1 Check the operation of the 4 way When the heat exchange temperature valve unit or the coil characteristics sensor TE exceeds 30 C orthe suction 2 Defect of the pulse motor valve P19 3 Check the resistance value of the 4 96 temperature sensor TS exceeds 50 during the heat pump operation heat exchange temperature sensor TE and the suction temperature sensor TS 71 Diagnostic functional operation Number of Check naf abnormalities Detailed code Operational cause Backup Automat Determination and action for item P present reset confirmation High pressure protection operation 1 Check that the service valve is fully When an abnormal stop occurs due to open the high pressure release control 2 Defect of the pulse motor valve When the heat exchange temperature 3 Check the o
127. heet can easily paste the sheet to the heat sink Control board Fan motor upper Compressor thermostat Motorized control coil Indoor power source Screw for fixing Screw for fixing element board 9 positions e y Insulating Hear release sheet grease 148 Exchange parts No name Work procedure Remarks 4 Electric parts 2 Reactor replacement 1 Perform the step 1 1 Binding tie Compressor lead 2 Remove the reactor lead connected to the control Heactor lead Reactor lead board 05 White CNO6 White 3 Cutthe binding tie that binds the compressor leads and fan motor leads 4 Remove the reactor Truss B tight screw 24 x 6 2 screw 5 Attach a new reactor Note Be sure to bind the removed binding tie by using the commercially available binding tie Make sure that the fan motor lead and the reactor body do not contact each other d 44 Reactor lead Binding tie Reactor bod Compressor lead Reactor lead _ Binding tie m Fan motor lead Reactor lead Fan motor lead 149 Exchange parts name Work procedure Remarks Fan motor 1 Perform the step 1 1 and step 2 2 Remove the fan motor and the flange nut that fixes the propeller fan T
128. hen cooling or the TWO sensor when heating detects an abnormal stop zone temperature the compressor stops and the abnormality detection counter increments 3 When the compressor stops in 2 the operation restarts when the temperature returns to the usual operation zone e or below after 150 seconds 4 When the compressor stops in 2 the abnormality detection counter is cleared when the operation continues for 10 minutes If the counter counts 10 times error code is displayed and the compressor does not restart 5 For details about an check code displayed see the check code list Heating TC Cooling TL Abnormal stop Frequency normal down L3 Frequency slow down Frequency hold Frequency slow up up to the point instructed As instructed 802H E 1102H E 1402H E Heating Cooling Heating Cooling TC TWO 2 TL TC TWO 2 TL a 61 63 62 63 b 56 62 57 62 54 60 55 60 52 58 53 58 48 54 49 54 63 9 Method of Defect Diagnosis In order to diagnose the defective part of the heat pump system first understand the symptom of the defect 1 Check the operation status It does not move or it moves but stops etc 2 Flashing display on the display part of the hydro unit 3 Check the check code by the remote control Please refer to the following procedure of defect diagnosis for
129. hts and the operation hot water supply heating cooling stops To restart the operation use the operation button of the remote controller 12 Output signal control 1 Option board TCB PCINSE is necessary Connect the connection cable to the water heat exchange board CN208 If an error detecting signal is output CLOSE occurs between the terminal 1 and 2 If a boiler output signal is output CLOSE occurs between the terminal 3 and 4 n either signal above is output the red LED on the Option board lights 13 Output signal control 2 Option board TCB PCINGE is necessary Connect the connection cable to the water heat exchange board CN209 When defrosting is in operation CLOSE occurs between the terminal 1 and 2 When the compressor is in operation CLOSE occurs between the terminal 3 and 4 In either signal above is output the red LED on the OP board lights Terminal label 56 Operation flow and applicable data etc 8 4 Outdoor unit control 1 PMV Pulse motor valve control Valve opening is controlled using the expansion valve with a pulse motor according to a heat pump operation status PMV is controlled between 30 and 500 pulses during an operation At the time of a cooling operation PMV is controlled with the usual target value of 1 to 4 K temperature difference between TS sensor and TC sensor At the time of a hot water supply or heating operation
130. it Outer dimension Height mm 925 Width mm 525 Depth mm 355 Net weight kg 50 Color Silky shade Munsell 1Y8 5 0 5 Remote controller Height mm 120 Outer dimension 3 Width mm 120 Depth mm 20 Circulating pump Motor output W 125 MAX Flow rate L min 22 9 17 2 Type Non self suction centrifugal pump Heat exchanger Plate type heat exchange Outdoor unit Outer dimension Height mm 890 Width mm 900 Depth mm 320 Net weight kg 63 Color Silky shade Munsell 1Y8 5 0 5 Compressor Motor output W 1400 Type Twin rotary type with DC inverter variable speed control Model DA220A2F 22L Fan motor Standard air capacity m3 min 50 0 Motor output W 60 Refrigerant piping Connection method Flare connection Hydro unit Liquid 09 52 Gas 215 9 Outdoor unit Liquid 09 52 Gas 015 9 Maximum length m 30 Maximum chargeless length m 30 Maximum height difference m 30 Minimum length m 5 Refrigerant Refrigerant name R410A Charge amount kg 1 8 Water piping Pipe diameter R1 1 4 Maximum length m None Need the flow rate 17 5 f min or more Maximum height difference m 7 Maximum working water pressure kPa 300 Operating temperature range Hydro unit 5 32 Outdoor unit 20 43 Operating humidity range Hydro unit 96 15 85 Outdoor unit 96 15 100 Wiring connection Power wiring 3 wires including ground line Outdoor unit Connecting line 4 wires including ground line 1 Heating performance measur
131. itches indication Indication 2 5 When SW800 is again pressed or 2 minutes has passed the indication 1 status returns Current abnormality Latest abnormality i SW803 ee 51 803 L Coe ON Light Blink Indication 1 Indication 2 Remote controller Initial indication SW800 operation Abnormality details Abnormality code 000000 v Pe O0 00 Discharge temperature sensor TD failure F04 eooeeo Heat exchanger temperature sensor TE failure F06 000000 Heat exchanger temperature sensor TL failure F07 06 000000 Outside air temperature sensor TO failure F08 eeooeo 000000 Suction temperature sensor TS failure Heat sink temperature sensor TH failure F12 06 F13 L29 000000 Heat exchanger suction sensor TE TS wrong wiring F15 F06 000000 090090 EEPROM failure Compressor break down F31 L29 000000 Compressor lock H02 OOL LALO Current detection circuit failure H03 000000 eoeoeo Faulty compressor case thermostat Not set up the capacity H04 P04 L10 L29 000000 Communication failure between MCUs L29 000000 0009000 Other abnormality e g Compressor s loss of synchronism Abnormal discharge temperature No abnorm
132. ive high pressure in the refrigerant cycle with more than the specified amount of refrigerant charged This may cause burst or an injury Fig 2 4 1 Configuration of refrigerant charging Outdoor unit Open close valve for charging _ Service port Electronic balance for refrigerant charging 11 Make sure that the setting is appropriate so that liquid can be charged A cylinder with siphon enables liquid to be charged without the cylinder turned upside down Cylinder with siphon Gauge manifold Outdoor unit Refrigerant cylinder Electronic balance NOTE Cylinder without siphon Gauge manifold Outdoor unit Siphon pipe Refrigerant cylinder Electronic balance Because R410A is HFC mixed refrigerant charging with gas changes the charged refrigerant composition causing the equipment characteristics to change 12 2 5 Brazing of pipes 2 5 1 Materials of brazing Silver brazing metal Silver brazing metal is an alloy mainly composed of silver and copper It uses iron copper or copper alloy and is relatively expensive though it excels in soldering Phosphor bronze brazing metal Phosphor bronze brazing metal is generally used to join copper or copper alloy Low temperature brazing metal Low temperature brazing metal is generally called solder and is an alloy of tin and lead Do not use it for refrigerant piping because its adhesive
133. k and bottom board Hex 24 x 10 2 screws 5 Remove the valve fixing board Remove the bolt of the valve Hex head bolt 26 x 15 4 bolts Remove the screws of the valve fixing board and parting board ST1T 04 x 8 1 screw Remove the screws of the valve fixing board and accumulator ST1T 04 x 8 1 screw Cut the binding tie of the discharge pipe and suction pipe to remove each sensor and the pulse motor valve coil lead 6 Remove the soundproofing board Upper Inward winding Outward winding 7 Remove the compressor terminal cover and then remove the compressor lead and compressor case thermostat 8 Remove the TD sensor fixed to the discharge pipe 9 Remove the compressor lead Leave the ferrite core attached to the electric parts box Control board U CN200 Red V CN201 White W CN202 Black Torque at tightening is 1 47 0 1Nem Back Binding tie for heat resistance Compressor case thermostat TS sensor Pipe cover Binding tie Sensors TL TO TE TS Motorized control valve coil lead Black pipe cover for heat resistance Binding tie for heat resistance Sensors TL TO TE TD TS Motorized control valve coil lead pa LE Ferrite core 141 Exchange parts name Work procedure Remarks Compressor Compressor lead 10 Remove the discharge and suction pipes conn
134. le phase model of 3 kW has the backup heater 1 only The three phase model of 6 kW has heater 1 2 of 6 kW 50 Operation flow and applicable data etc 8 3 Hydro Unit Control 2 Control at the time of heating heater operation Controlled Object Backup heater Booster heater The backup heater control starts when 13 minutes has passed after the heating heat pump operation started The backup heater control increases decreases or maintains the number of heaters every 10 minutes FC depending on the difference between the heating set temperature TSC_F and the heater outlet temperature THO Note that when the heating set temperature is reached the unit stops energizing the heater THO Abnormality detection Diff 2K Heater off 70 TSC F 0 Heater output down every 5 10 15 or 20 minutes TSC F 2 Diff 2K KEEP TSC 4 Diff 2K Heater output up every 10 20 30 or 40 minutes Status Heater ON OFF Heater 1 Backup heater 3 kW Heater 2 Backup heater 9 kW Heater 3 Heater 2 Booster heater The single phase model of 3 kW has the backup heater 1 only The three phase model of 6 kW has heater 1 2 of 6 kW Contact point output only is available for booster heater Related FC FC No Setting item Default Setting available range 20 Hot water supply heat pump start temperature 38 20 45 21 Hot water su
135. leak may cause a fire at a customer site due to electrical leakage or an electric shock N WARNING Check insulation After the work is completed check with an insulating resistance tester 500V that the insulation resistance between the live and dead metal parts is 2 or higher Alow insulation resistance may cause a disaster at a customer site due to electrical leakage or an electric shock lt Ventilate gt Ventilate if refrigerant gas leaks during service work Should refrigerant gas catch fire poisonous gases may be produced A closed room full of leaking refrigerant results in the absence of oxygen it is dangerous Make sure to ventilate lt Caution electric shock gt When checking a circuit while energized if necessary use rubber gloves not to contact the live part Contact with the live part may cause an electric shock The unit contains high voltage circuits Contact with a part in the control board with your bare hand may cause electric shock Take enough care to check circuits Turn off the power breaker Because the electrical components are energized with high voltage always turn off the power breaker before starting to work Failure to do so may cause an electric shock Always do Should refrigerant gas leak find where the gas leaks and properly repair it To stop the repair work because the leakage location cannot be identified perform refrigerant recovery and clo
136. lectroscope 10 2 4 Recharging of refrigerant Recharge if necessary the specified amount of new refrigerant according to the following procedure Recover the refrigerant and check that no refrigerant remains in the refrigerant cycle Open fully the handle of gauge manifold Lo turn on the vacuum pump and then perform vacuum evacuating Connect the charge hose to packed valve service When the compound gauge s pointer indicates port on the outdoor unit s gas side 0 1 MPa 76cmHg close fully the handle Lo and turn off the vacuum pump Connect the charge hose to the vacuum pump adapter Let the equipment stay as it is for one to two minutes and check that the compound gauge pointer does not return Open fully both packed valves on the liquid and gas sides Place the refrigerant cylinder to the electronic balance connect the connecting hose to the cylinder and the connecting port of the electronic balance and then charge liquid refrigerant For refrigerant charging see the figure below NOTE Never charge refrigerant exceeding the specified amount If the specified amount of refrigerant cannot be charged charge it a little at a time while running refrigerant recovery pump down Do not make additional charging An additional charge when refrigerant leaks changes the refrigerant composition in the refrigerant cycle causing the characteristics change of the Air to Water Heat Pump or excess
137. length m 30 Maximum height difference m 30 Minimum length m 3 Refrigerant Refrigerant name R410A Charge amount kg 2 7 Water piping Pipe diameter R1 1 4 Maximum length m None Need the flow rate 132 or more Maximum height difference m 7 Maximum working water pressure kPa 300 Operating temperature range Hydro unit 5 32 Outdoor unit 20 43 Operating humidity range Hydro unit 96 15 85 Outdoor unit 96 15 100 Wiring connection Power wiring 3 wires including ground line Outdoor unit Connecting line 4 wires including ground line 1 Heating performance measurement conditions outside air temperature 7 or 6 water supply temperature 30 outlet temperature 35 refrigerant piping length 7 5 m no height difference capacity gt 97 COP gt 95 operating noise lt 3 dB 2 Cooling performance measurement conditions outside air temperature 35 water supply temperature 12 outlet temperature 7 refrigerant piping length 7 5 m no height difference capacity gt 97 gt 95 operating noise lt 3 dB 3 remote controller should be shipped with the hydro unit Use two 1 5 meter wires to connect the hydro unit with the remote controller 4 The outdoor unit operating noise is measured at the point of 1m away from the unit back surface center and 1m high from the ground The hydro unit operating noise is measured at the point of 1m a
138. lly used for silver brazing Itfeatures the increase of oxide film while moving the capability to the borax boric acid compound to add compounds such as potassium fluoride potassium chloride or sodium fluoride Piping materials for brazing and brazing metal flux Piping material Bragg to be Flux to be used Copper Copper Phosphor copper Do not use Copper Iron Silver Paste flux Iron Iron Silver Vapour flux NOTE Do not enter flux into the refrigerant cycle e If chlorine contained in the flux remains within the pipe the lubricating oil deteriorates Because of this use a flux that does not contain chlorine When adding water to the flux use water that does not contains chlorine e g distilled water or ion exchange water Remove the flux after brazing 2 5 3 Brazing Brazing must be performed by a person qualified and experienced with theoretical knowledge since the operation requires sophisticated techniques Perform brazing while flowing dry nitrogen gas N2 to prevent oxide film from forming during brazing application to the inside of the pipe NOTE Never use gas other than nitrogen gas Brazing method to prevent oxidation 1 Attach a reducing valve and a flow meter to the nitrogen cylinder 2 Use a copper pipe to direct the piping material and attach the flow meter to the balance 3 Apply a mark to the clearance between the piping material and the copper pipe
139. ly energized 10 mins ON 5 mins OFF Output equal to 40W BO pec eem Continuously energized Output equal to 40W when TO sensor fails TE 20 Not energized Intermittently energized 10 mins ON 5 mins OFF Output equals to 40W Continuously energized Output equals to 40W HOSE pese Notes During winding energization energizing noise may be heard but this is not abnormal 8 Short circuit operation prevention control 1 In 10 minutes after the operation start the compressor may not stop for protection This status is not abnormal The operation duration time of the compressor varies depending on a operation status 2 If the operation stops with the remote controller the operation does not continue 9 Over current protection control 1 A detection of abnormal current with the over current protection control stops the compressor 2 Set the abnormality detection counter to 1 and restarts the compressor after 150 seconds 3 When the stop by over current protection control counts 8 times error code is displayed and the compressor does not restart Remote controller error code display HO1 62 Operation flow and applicable data etc 8 4 Outdoor unit control 10 High temperature release control 1 To prevent excessive hi pressure rise operation frequency is controlled by the TL sensor when cooling and by TWO sensor when heating 2 If the TL sensor w
140. move 1 Perform the step 1 1 and step 2 Note Perform a replacement work on cardboard or cloth to prevent the product from being damaged 2 Remove the outlet cabinet and put with the fan guard side down 3 Release the hooks 8 positions of the fan guard 2 How to attach 1 Press the hooks 8 positions with hands from the front side to fix them Note Check that all the hooks are fixed to the given positions Bellmouth Fan guard Outlet cabinet 145 2 2 HWS 1102H E 1402H E No Exchange parts name Work procedure Remarks Common procedure Note Wear gloves when performing the work Failure to do so may cause an injury when accidentally contacting the parts How to remove 1 Stop the operation by remote controller and turn off the breaker 2 Remove the front panel Hex 4 x 10 2 screws After unscrewing the screws remove the front panel while pulling it downward 3 Disconnect the power source cable and connecting cables between hydro and outdoor from the cord clamp and terminals 4 Remove the top board Hex 4 x 10 5 screws 2 How to attach 1 Attach the top board Hex 24 x 10 5 screws 2 Connect the power source cable and connecting cables between indoor and outdoor to the terminal and fix them with the cord clamp Note The power source cable and connecting cable between hydro and outdoor units must be fixed along the connecting piping by usin
141. mp contact discharge by facing the closed side upward Connect lead wires with crimping terminals and turn the closed end upwards to avoid exposure to water Watch out for fire Observe the following instructions when repairing the refrigerant cycle 1 Watch out for surrounding fire Always put out the fire of stove burner or other devices before starting the repair Should the fire fail to be put out the oil mixed with refrigerant gas could catch fire 2 Do no use a welder in a closed room A room with no ventilation may cause carbon monoxide poisoning 3 Keep away flammable materials The materials may catch the fire of a welder Use refrigerant carefully Check the refrigerant name to use the tools and members appropriate for the refrigerant A product using the refrigerant R410A has the refrigerant name prominently displayed on its outdoor unit In addition the diameter of the service port is changed from that of the conventional R22 to prevent incorrect filling Never use refrigerant other than R410A for Air to Water Heat Pump using R410A Also never use R410A for Air to Water Heat Pump using other refrigerant such as R22 A mixture of RA10A with different ones excessively raises the pressure in the refrigerant cycle leading to an injury due to burst Do not make additional charge of the refrigerant An additional charge when refrigerant gas leaks changes the refrigerant composition in the refrigerant cycle
142. n check Annually Frequency check by rated operation See 10 13 4 Refrigerant leakage inspection Annually Visual inspection and check connection with a leak tester No leakage must be found 5 Air heat exchanger inspection Dirt and clogging Annually Visual inspection Clear clogging 6 Fan inspection Scratch damage Annually Check for scratches or damages to the fan or abnormal motor sound 7 Cycle parts Annually Operation check by trial run Compressor 4 way valve Pulse motor valve Annually 8 Inverter control board Terminal block Annually Check for loose connector and connecting terminal Hot water cylinder HWS 150CSHM3 E UK Frequency Periodic inspection details 210CSHM3 E UK 300CSHM3 E UK 1 Insulation measurement Power source circuit Annually Insulation measurement with a mega tester 2 Power source measurement No load voltage Annually Electronic voltage measurement 230V 23V 3 Water leakage inspection Annually Visual inspection for leakage No leakage must be found 4 Terminal block Annually Check for loose connector and connecting terminal 5 Heater assembly Annually Check for appearance damage deformation or loose terminal 6 Temperature Pressure relief valve Specification for Annually Drainage check UK only 154 13 Exploded View Part List Hydro Unit 217
143. n tap 460 rpm 802H E 500 rpm 1102H E 1402H E The nighttime low noise operation is enabled disabled by changing the remote controller FC 09 How to set 1 Press the TEMP 5 2 button at the same time for 4 seconds or longer Shifted to the nighttime low noise setting mode The Code No field displays 09 the DATA 0000 gamma and 48 being displayed blink 2 Press TIME to set enable 1 or disable Pressing SET change DATA and display to be lit and the setting is confirmed When 1 as enable is set the nighttime low noise setting is enabled the control starts at the set start time 3 Press TEST 2 to exit the nighttime low noise time setting mode The and 45 goes out returning to its original status 47 Item Operation flow and applicable data etc 8 3 1 Capacity control compressor high temperature release low temperature release Hydro Unit Control This unit controls the compressor frequency and heater output so that the water outlet temperature matches the remote controller set temperature 1 1 Compressor control Calculates the different between the remote controller set temperature TSC F and the water outlet temperature Hot water supply THO Heating TWO Sets the Hz signal correction amount that determines the number of compressor rotations by the temperature difference Detects the number of compressor rotations accor
144. n the hydro unit With the water remained in the hydro unit performing refrigerant recovery may freeze the water and burst the unit 2 Setallthe SW804 dip switches to OFF initial status and press the push button switch SW801 for approx 1 second A cooling operation starts During the operation D805 green LED blinks Note that this operation lasts for 10 minutes SW804 All OFF Initial status SW801 Press for approx 1 sec 1111 SW805 Green LED blinks 3 After 3 minutes has passed close the liquid side valve 4 After the refrigerant recovery is completed close the gas side valve 5 Press again the push button switch SW801 for approx 1 second The outdoor unit stops operation cooling 16 2 Outdoor unit settings Existing piping Power save etc The following settings are available with dip switch setting and jumper wire setting Function Where to set Control details Existing piping When using a 219 1 pipe for the existing piping set the switch to ON setting SW802 This case may decrease heating capacity depending on the outside air Cue OFF temperature when heating or on a room temperature Power save setting H Existing piping setting When using the power save function set the switch to ON
145. nals are transmitted to the outdoor unit and the unit starts defrosting Forced defrosting lasts for up to 10 minutes After the defrosting the heating operation starts To perform defrosting again start with 1 above Performing the forced defrosting once cancels the forced defrosting setting above described 13 Rated Operation Setting The FC code setting See 2 2 can activate the rated operation mode during a heating operation Preparation 1 Press the remote controller buttons TEST A SET and SELECT at the same time for 4 seconds or longer Make sure that no operation is in progress 2 Specify CODE FC 91 with the TEMP ii 00 0 button for temperature setting I TEMP SELECT GD 3 Set DATA to 0001 with the TIME Y button for timer 2 1 setting See display C Po eD Factory setting is 0000 TIME DAY STEP OPERATE MODE HOT WATER BOOST _ a 4 Press the SET button If OK lights the status is 86 5 ae confirmed 5 Pressing the TEST button moves the unit to the normal 5 1 stop state Operation Press the ZONE1 2 button Set the operation to the heating mode After a while the outdoor unit starts an operation with the rated operation frequency horsepowers HWS 802XWH E HWS 802H E 66 0Hz 4 horsepowers HWS 1402XWH E HWS 1102H E 44 4Hz 5 horsepowers HWS 1402XWH E HW
146. ng thermostat I P ap NZ 1 Xe Swot Cy VEL 3 woe CN200 799 ee Ee Flow switch g RED 2 amp LIH CN201 High pressure switch swio SWi2 SWi3 WHI 4 15MPa E m CN202 Thermal protector auto Swos YEL Ba 8 00 E WHI f CN102 a 38 WHI gt ja 15 575253154 RY606 RY607 Susi gt ransformer 2 Rus E WHI tes 2 gt T wv Fuse o Type 1 605 CN606 CN305 CNi00 TSA 2 wire spring return 8 wire SPST type BLU vaj BLU 250V 0900060 069 526 1 HWS 802XWHT6 E Installed zl 0009000 099 111 HWS 1402XWHT6 E Installed zz a s 12 i s TA HWS 1402XWHT9 E 2 Installed MESES os 565 amp 5 HWS B02XWHM3 E Notinstalled d 1 5 1 HWS 1402XWHM3 E Not installed 63 amp C laval RY Symbol Paris name Symbol Paris name lt lt WPM Water pump motor TC Water heat exchanger temperature sensor xv 271 5 07 0 3 valve local TWI Water heat exchanger inlet temperature sensor Type2 M Type2 Deo TF BWV valve local TWO Water heat exchanger outlet temperature sensor 3 wire SPST type 8 wire SPDT type PNK
147. ngle 6 Operating temperature 95 5 C AC250 V 16A operation 13 Flow switch Operating flowing quantity 13 L min 14 Output board OP OP OP AC230V0 5ADC24V1A 15 Input board OP OP OP TCB PCMO3E Contact input 16 Remote control HWS AMS11E 17 Water 3 valve terminal AC230V0 1A 2Wire 3Wire SPST SPDT type mountable 18 Water 2 way valve terminal AC230 V 0 1 A 2Wire type mountable 19 Mixing valve terminal AC230V0 1A 3Wire SPST SPDT type mountable 20 Circulating pump terminal 230 1 0 21 Booster heater terminal AC230 V 1 0A 22 Fuse AC 250 V 30 A O Applied Optional accessory 24 HWS 1402XWHM93 E 1402XWHT6 E 1402XWHT9 E Model name No Component name Type name Rating M3 E 6 9 1 Circulating pump UPS25 80 130 AC230 V 0 83 A MAX 2 Backup heater 6 kW AC 400 V 3N 6 kW AC230 V 3kW compatible 3 Backup heater 9 kW AC 400 V 3N 9 kW Water heat exchange 10 25 C 4 temperature sensor TC sensor Water inlet temperature sensor 10 25 C 5 TWI sensor Water outlet temperature sensor 10 25 6 TWO sensor Heater outlet water temperature 10 25 C 7 5 THO sensor 8 Floor inlet temperature sensor _ 10
148. nit records operation information before a power outage and retrieves the information after the power is on again to restart automatically the operation with the information 7 1 Operation during remote controller The operation status before a power outage automatically restarts after the power is on again The merit functions are also enabled Approximately 6 hours or more after a power outage The operation status before a power outage automatically restarts after the power is on again But the merit functions Night Set Back Anti Bacteria are disabled The remote controller time displays The merit functions are disabled 7 2 Operation during forcible automatic operation A forcible automatic operation is performed when the power is on again after a power outage 7 3 Operation during defrosting operation When the power is on again after a power outage the usual operation restarts Note The operation details recorded before a power outage Operation mode Hot water supply Heating Cooling Hot water supply Heating Hot water supply Cooling Set temperature Hot water set temperature Heating set temperature Cooling set temperature Merit function Hot water supply operation Anti Bacteria Heating operation Night Set Back 8 Piping freeze prevention control This control operates when the power is on regardless the remote controller setting ON or OFF To prevent frost bursting of the water piping for hot water s
149. nnector No gt Correct TD sensor e 9 CN603 is connected connection e e Yes TD sensor resistance No characteristic is normal See the SENSO characteristic table on page 101 Replace outdoor control board F06 Indication 1 Indication 2 gt Heat exchanger temperature sensor TE failure sensor connector 601 Correct TE sensor e 9 is connected connection e 5 e TE sensor resistance No AE gt Replace TE sensor characteristic is normal See the characteristic table on page 101 Replace outdoor control board 207 Indication 1 Indication 2 gt Heat exchanger temperature sensor TL failure TL sensor connector 604 No gt Correct TL sensor o is connected connection YES e TL sensor resistance No gt Ca is normal See the Replace TL sensor YES characteristic table on page 101 Replace outdoor control board F08 Indication 1 Indication 2 gt Outside air temperature sensor TO failure sensor connector CN602 No gt Correct TO sensor is connected connection Yes sensor resistance No Eediaos Senger characteristic is normal See the Yes characteristic table on page 101 Replace outdoor control board 99 Check code Outdoor LED Check and Action proced
150. nnector connected to the control board Hydro power source temperature sensor electric control valve coil 4 way valve coil compressor case thermostat fan motor Remove the connector by releasing the lock in the housing 3 Remove the lead cable connected to the control board Torque at tightening is 1 47 0 1 Compressor lead U CN200 Red V CN201 White W CN202 Black Remove the power source cable from the power source terminal block Torque at tightening is 2 5 0 1 4 Remove the ground wire of the control board Truss B tight screw 24 x 6 1 screw 5 Remove the fixed screws of the control board Collar screw for fixing element 23 x 16 7 screws Pan S tight screw for fixing the board 23 x 20 1 screw 6 Remove the control board Supporter 5 positions Note Removing the control board may be difficult due to the heat release grease for the heat sink 7 Attach a new control board Note Be careful for not taking the compressor lead V CN201 White for the reactor lead CNO5 or 06 White The compressor lead has a transparent sleeve at its ring terminal The reactor lead ring terminal does not have sleeve Be sure to attach the aluminium board 0201 and the insulating sheet 0300 Applying beforehand a bit of heat release grease to the back side of the insulating sheet can easily paste the sheet to the heat sink Control board Reactor lead Compressor
151. o loosen the flange nut turn it clockwise Turn it counterclockwise for tightening 3 Remove the propeller fan 4 Remove the connector for fan motor from the inverter control board Remove the ferrite core of the lower fan motor to use it again for a new fan motor 5 Remove the fan motor lead from the fan motor lead fixing rubber on the through hole of the parting board 6 Remove the fixed screws 4 for each while holding the fan motor so that it does not drop Notes in assembling fan motor Tighten the flange nut in 4 95 Nem 50kgfecm To prevent the fan motor lead from contacting the propeller fan adjust the length of fan motor lead fixing rubber so that it does not slack Attach the fan motor lead fixing rubber to the parting board so that the projection part is placed on the refrigerant cycle side Make sure that the reactor body and the fan motor lead do not contact each other Be sure to bind the removed binding tie by using the commercially available binding tie Be sure to re attach the ferrite core of the lower fan motor Fix this with a commercially available binding tie Note Fix the fan motor lead to the motor base using a metal tie so that the fan motor lead does not contact the propeller fan Turn it right _ to loosen 4 Fan motor eB connector lower LU gt Fan motor lead fixing rubber Fan motor lead fixing rubber Pr
152. of how water supply and cooling 6 Boiler assisted heating operation 7 HOT WATER BOOST operation 8 Anti bacteria 9 Night setback operation 10 FROST PROTECTION operation 11 AUTO operation 12 Nighttime low noise operation 39 47 8 3 Hydro Unit Control 1 Capacity control compressor high temperature release low temperature release 2 Heater control 3 Circulation pump control 4 Flow switch control 5 Mixing valve control 2 temperature heating control 6 Q H characteristics of hydro unit 7 Automatic restart control 8 Piping anti freezing control 48 56 Outdoor Unit Control 1 PMV Electronic control valve control 2 Outlet temperature release control 3 Current release control 4 Current releases shift control 5 Outdoor fan control 6 Defrosting control 7 Winding heating control 8 Continued operation prevention under short circuit conditions 9 Overcurrent protection control 57 63 35 Operation flow and applicable data etc Operation description 8 1 1 Operation control 1 Purpose Basic The operations of the Operation Remote controller hydro unit and the Operation condition selection Heating Run Stop Hot water supply Run Stop Cooling Run Stop Serial signals transmit and receive Serial signals transmit and receive Hot water supply heater MG Mixing Valve Pressure switch exchange Lo pressure sensor Serial signal
153. ojection Refrigerant cycle side Fan motor 150 Exchange parts name Work procedure Remarks Compressor Compressor lead 1 Remove defective compressor 1 Perform refrigerant gas recovery 2 Perform the step 1 1 and step 3 3 Remove the piping panel Front Remove screws of the piping panel Front and bottom board Hex 24 x 10 2 screws Remove screws of the piping panel Front and Back Hex 24 x 10 1 screws 4 Remove the piping panel Back Remove screws of the piping panel Back and bottom board Hex 24 x 10 2 screws 5 Remove the soundproofing board Upper Inward winding Outward winding 6 Remove the compressor terminal cover and then remove the compressor lead and compressor case thermostat 7 Remove the TD sensor fixed to the discharge piping 8 Remove the compressor lead Leave the ferrite core attached to the electric parts box Control board U CN200 Red V CN201 White W CN202 Black 9 the outlet and suction pipes connected to the compressor by using a burner WARNING When removing the piping by burning the solder take enough care for a fire going off at the moment the wax melts if oil remains inside the piping Note Do not make fire flame contact with the 4 way valve and pulse motor valve This may cause an operation failure 10 Pull out the discharge and suction pipes of the refrigerant cycle upward 11 Remove the com
154. on mode Heating Cooling Heating Cooling Electric characteristic 1 2 Hydro unit Current A 0 63 0 61 0 67 0 63 Power kW 0 135 0 130 0 145 0 135 Power factor 93 2 92 7 94 0 93 2 Outdoor unit Current A 10 14 14 88 13 57 17 47 Power kW 2 265 3 39 3 005 3 945 Power factor 96 9 99 1 96 4 98 1 Total Starting current A 10 77 15 49 14 24 18 10 Operating noise 1 2 4 Hydro unit dB A 29 29 29 29 Outdoor unit dB A 49 49 51 51 Coefficient of performance 1 2 4 66 2 84 4 45 2 69 Hydro unit Outer dimension Height mm 925 Width mm 525 Depth mm 355 Net weight kg 54 Color Silky shade Munsell 1Y8 5 0 5 Remote controller Height mm 120 Outer dimension 3 Width mm 120 Depth mm 20 Circulating pump Motor output W 190 MAX Flow rate L min 32 1 28 9 40 1 31 5 Type Non self suction centrifugal pump Heat exchanger Plate type heat exchange Outdoor unit Outer dimension Height mm 1340 Width mm 900 Depth mm 320 Net weight kg 90 Color Silky shade Munsell 1Y8 5 0 5 Compressor Motor output W 2500 Type Twin rotary type with DC inverter variable speed control Model DA422A3F 25M Fan motor Standard air capacity m min 103 0 Motor output W 100 x 2 Refrigerant piping Connection method Flare connection Hydro unit Liquid 09 52 Gas 015 9 Outdoor unit Liquid 09 52 Gas 215 9 Maximum length m 30 Maximum chargeless
155. on of heat pump and confirms the abnormality Display A11 If the heat pump operation is switched to other operation the abnormality detection counter is reset to 0 TC TWO 2 Zone Control operation T11 Forcible stop R1 compressor frequency by 1 2 Hz every 60 secs 62 0 C R2 Increase compressor frequency by 0 6 Hz every me P slow down 908608 9 Decrease compressor frequency to 70 every 10 secs T8 P Decrease compressor frequency by 3 Hz every R2 slow up 10 secs T7 S normal Q Keep compressor frequency TC TWO 2deg C TWI T7 T8 T9 T10 T11 TWI lt 30 57 0 59 0 60 0 61 0 62 0 30 TWI 35 57 0 59 0 60 0 61 0 62 0 35 lt TWI lt 40 56 5 58 5 59 5 60 5 62 0 40 5 TWI 45 56 5 58 5 59 5 60 5 62 0 45 5 TWI 50 56 0 58 0 59 0 60 0 62 0 50 TWI 56 0 58 0 59 0 60 0 62 0 1 3 Low temperature release control A heat pump operation is performed as shown in the table below according to the TC sensor detecting temperature For the detected temperature TC TWO of a heat pump operation is used The values of T7 through T10 varies depending on TWI See the table below If the compressor frequency instruction from the hydro unit is less then 10 Hz the compressor stops TC lt 3 C causes the compressor to stop abnormally When the compressor restarts when 140 seconds has passed after the stop and TC 3
156. operation output Output for 10 sec no output for 10 sec 15 Built in AC pump continuous Continuously alive Do not operate the AC pump alive operation continuously without any water in hydro unit 102 9 6 Brief method for checking the key components 9 6 1 Hydro unit No Component name Check procedure Water heat exchange Remove the connector and measure the resistance value with a tester Normal temperature temperature TC sensor Temperature _ Water inlet temperature S 0 C 10 C 20 C 30 C ensor TWI sensor 1 Water outlet temperature TWO sensor Water inlet temperature TWI sensor Water heat exchange temperature TC sensor 33 8 20 35 12 59 7 99 Hot water cylinder temperature Water outlet TWO sensor kQ kQ TTW sensor Hot water cylinder temperature TTW sensor IGG Inlet Floor inlet temperature TFI sensor TFI sensor Circulating pump Remove the connection cover of the pump and measure the resistance with a tester AC pump Type L UPS025 65K 130 Location Resistance value 2 802XWH E N L N 100 200 UPS25 80 130 1402XWH E 103 9 6 2 Outdoor unit No Component name Check procedure Compressor Measure the resistance value of each
157. or water seal When replacing the heater use a packing which was slathered with the liquid gasket Part code Service parts 37595721 Packing 37595722 Liquid gasket 1 Attach a new heater in the reverse order of the removal After the heater assembly replacement repair open the water supply source valve and water piping valve to pass water through the hydro unit and check that the heater connection has no water leakage Nut Heater assembly Insulator 4 Heater 7 assembly 16 TC sensor TWI sensor TWO sensor THO sensor 1 How to remove 1 Perform the step 1 1 and step 5 2 Take the sensor out TC sensor Sensor diameter 6 Tube color Black TWI sensor Sensor diameter 4 Tube color Blue THO sensor Sensor diameter 6 Tube color Gray TWO sensor Sensor diameter 66 Tube color Red 134 Exchange parts name Work procedure Remarks 17 Water heat exchanger assembly Close the water piping source valve and the valve of water pipe connected to the hydro unit and then remove the refrigerant and water piping Perform refrigerant recovery with the outdoor unit Disconnect all the power source cable outdoor unit connection cable and cylinder connection cable 1 How to remove 1 Perform the step 1 1 step 5 6 and 8 2 Remove the water pip
158. or Sensor holder TE 164 Number of pieces per unit Safety Location Part No Description No HWS 1102H E HWS 1402H E 7 43063325 HOLDER SENSOR 1 708 43163055 HOLDER SENSOR 1 1 709 43163059 SPACER BUSH 1 1 710 43163060 SPACER COLLAR 1 1 165 166 TOSHIBA CARRIER CORPORATION 23 17 TAKANAWA MINA TOU TOKYO 108 0074 JAPAN
159. otection fuse 0502 Amber Hydro gt Outdoor J F03 250V 10A Power supply protection fuses F01 250V 25A 31 p cU UM SE ulejs s 10 201 1 JOH Ajjedo yue T gt inden lj H pi Duionpeu 10014 y oX MASZ LO Jayeay 2 MAYL LLS yun 100pinO A je90 oy 42 PIE 2 28 1501 yenuew 110 112 euueu AO0 2OV jeoo paziiajoy 184 01 206 1 seyem dl T Ssed g peunoo4d Ajjeooj Jayem 10 uleIq 22901 JaBueyoxe yeay O useui op MS MO 21 jun Jojeipeud peunooud Ajeooj peunooud Ajeoor d 105095 ainssaid Jules MIE L 10 Aem 2 Jejeau dmyoeg U9 IMS 55 4 09 96 195 J0j98joJd 2001 jas Jesse uoisuedx3 Ajpeoo 7 X
160. outlet temperature is 70 or higher No ot water from boiler or other circuits does not come in No Yes Backup heater is energized Measure heater current No Replace water heat exchange control board 75 Replace TWI TWO and THO sensors Replace flow switch Correct water circuit To prevent hot water of other circuits from entering Failure of backup heater Too large heater input thermostat short circuit Replace heater unit A03 Error Temperature rise and error short circuit TTW 285 C is detected No Replace TTW sensor TTW sensor characteristic is correct Yes ot water cylinder heater is energized Mg sw 05 for heater operates Replace Mg sw Operating noise at normal time At normal temperature tank thermosta is energized Hot water cylinder thermostat operates Replace hot water cylinder thermostat Operation temperature 82 Yes Replace water heat exchange control board 76 A04 Error Freeze prevention control When the outside temperature or inlet water temperature is low approx 20 or lower and the room load is large operation frequency rating the freeze prevention control may be activated Start Operation restart Perform air vent Excess air Yes inside pump No Chattering from flow switch No Water heat exchanger board SW11 1
161. power breaker Because the electrical components are energized with high voltage always turn off the power breaker before starting to work Check After a repair is complete perform a trial operation after attaching the front panel upper and lower cabinets and side cabinet and check that no abnormality including smoke or abnormal noise occurs Failure to do so may cause a fire or an electric shock Place the cabinets before making a trial operation Watch out for fire Observe the following instructions when repairing the refrigerant cycle 1 Watch out for surrounding fire Always put out the fire of stove burner or other devices before starting the repair Should the fire fail to be put out the oil mixed with refrigerant gas could catch fire 2 Do not use a welder in a closed room A room with no ventilation may cause carbon monoxide poisoning 3 Keep away flammable materials The materials may catch the fire of a welder CAUTION Wear gloves Wear gloves when performing repair Failure to do so may cause an injury when accidentally contacting the parts Thick gloves such as cotton work gloves 1 Hydro Unit No Exchange parts name Work procedure Remarks 1 procedure Wear gloves when performing the work Failure to do so may cause an injury when accidentally contacting the parts Front panel 1 How to remove 1 Stop the hydro unit ope
162. pply heat pump stop temperature 45 40 50 33 Heater control of down time 1 10 mins 0 5 mins 2 15 mins 3 20 mins 34 Heater control of up time 0 10 mins 1 20 mins 2 30 mins 3 40 mins 2 3 Heater control at the time of defrosting Object to be controlled Backup heater THO When a defrosting operation starts during the heating heat TSC F pump operation the unit energizes a backup heater 3 KW P according to the heater outlet temperature sensor THO and TSC_F B 8 2 the set temperature TSC_F as follows 5 F a a 4 Heater off Heater 1 Heater 1 1 When the heater outlet temperature sensor THO drops to the temperature of 2 C below the set temperature Status Heater ON OFF Defrosting ends according to the usual heater control Heater 1 Backup heater 3 kW ON 2 4 Forcible heater energization To prevent freeze the unit energizes or stops energizing a backup heater 3 kW regardless of the unit status not operated or in operation Object to be controlled Backup heater 1 Energization start condition TWO 4 or TWI 4or THO 4 2 Energization stop condition TWO 2 5 TWI gt 5 and THO 2 5 Defrosting ends according to the usual heater control 2 5 No heater operation According to the SW11 setting the unit switches the energize not energize for the hot water cylinder backup heater and booster For details see 10 1 51
163. pressor nuts that fix the compressor to the bottom board 3 nuts 12 Pull the compressor out toward you Note The compressor weighs 20 kg or more Two people should be required to handle it Piping panel Front N Binding tie for heat resistance _ Compressor lead Ferrite core Remove Outlet pipe 151 Exchange parts name Work procedure Remarks Compressor Compressor lead 2 Attach the compressor 1 Attach the compressor in the reverse order of the removal Note Be sure to replace the compressor lead after the compressor replacement Compressor lead spare parts code 43160591 At this time wind the ferrite core with the compressor lead for 4 times Attach the soundproofing board Inward winding Outward winding as shown in the right figure through between the compressor and between the piping and parting board Fix the TD sensor with a commercially available heat resistant binding tie through the piping cover so that the sensor do not contact the discharge pipe 3 Vacuuming 1 Connect the vacuum pump to the charge port and check joint of the gas piping valve to operate the vacuum pump 2 Perform vacuuming until the vacuum low pressure gauge shows 1 mmHg Note Open fully the pulse motor valve before vacuuming With the valve closed vacuuming between the outdoor unit liquid valve and t
164. r temperature resistance characteristic table TC TWI TWO TFI TTW TE TS TO sensors TD TL sensors Typical value Typical value Resistance value Resistance value Temperature C Temperature C Minimum Standard Maximum Minimum Standard Maximum 10 55 42 55 73 60 04 0 150 5 161 3 172 7 0 32 33 33 80 35 30 10 92 76 99 05 105 6 10 19 63 20 35 21 09 20 58 61 62 36 66 26 20 12 23 12 59 12 95 25 47 01 49 93 52 97 25 9 75 10 00 10 25 30 37 93 40 22 42 59 30 7 764 7 990 8 218 40 25 12 26 55 28 03 40 5 013 5 192 5 375 50 17 00 17 92 18 86 50 3 312 3 451 3 594 60 11 74 12 34 12 95 60 2 236 2 343 2 454 70 8 269 8 668 9 074 70 1 540 1 623 1 709 80 5 925 6 195 6 470 80 1 082 1 146 1 213 90 4 321 4 507 4 696 90 0 7740 0 8237 0 8761 3 205 3 336 3 468 0 5634 0 6023 0 6434 TC TWI TWO TFI TTW TE TS TO sensors Resistance kQ 10 0 10 20 30 40 50 60 70 80 90 100 Temperature C TD TL sensors 20 Resistance kQ 50 C or lower Resistance kQ 50 C or higher 0 10 20 30 40 50 60 70 80 90 100 Temperature C Since the TH sensor outdoor unit heat sink temperature sensor is built in the outdoor control board the resistance value cannot be measured 101 9 5 Operation check by PC board switch 9 5 1 Operation check mode This mode allows to check the operations of
165. r serious accident Indicates that a wrong operation may cause a service engineer and the third persons AN CAUTION around to get injuries or may cause property damage or that unit defective after the operation may cause a user to have a similar accident Property damage indicates extended damage to property furniture livestock or pets About symbols Symbols Meaning of Symbols S Indicates a forbidden action Specific forbidden actions are described in text near the symbol C Indicates a forcible must do action Specific forcible actions are described in text near the symbol Indicates a caution including danger and warning ZN Specific cautions are described in picture or text inside or near the symbol DANGER lt Turn off the power breaker gt Turn off the power breaker before removing the front panel and cabinet Failure to do so may cause a high voltage electric shock leading to death or injury During an operation the second side circuit of high pressure transmission are applied with a high voltage of 230V or higher Touching the circuit even with an electrical insulator let alone a bare hand or body causes an electric shock For details see the schematic Discharge between terminals When the front panel and cabinet are removed make short circuit current to discharge between high pressure capacitor terminals Failure to do so may cause a hig
166. ration and turn off the power breaker 2 Remove the front panel ST1T 04 x 10 6 screws 3 After unscrew the screws remove the front panel by pulling it toward you Electric parts box 4 Remove the electric parts box cover lower Front panel cover lower ST2T Q4 x 8 2 screws 5 Disconnect the power source cable and outdoor unit connecting cable from the terminal block Electric parts box 6 Remove the electric parts box cover upper cover upper ST2T 04 x 8 4 screws 7 Disconnect the remote controller connecting cable from the CN41 connector of the water heat exchange board Electric parts box cover lower 2 How to attach Electric parts 1 Connect the remote controller connecting cable to box cover upper the water heat exchange board 2 Attach the electric parts box cover upper 3 Connect the power source cable and outdoor unit connecting cable to the terminal block and fix with the cord clamp 4 Attach the electric parts box cover lower 5 the front panel 127 Exchange parts name Work procedure Remarks 2 Remote controller 1 How to remove 1 Perform the step 1 1 2 Remove the remote controller from the holder using a flat blade screwdriver Release the stopper Remote 3 Disconnect the remote controller cable from the controller holder terminal block on the back side of the remote controller Remote 2 How to attach controller 1 Attac
167. ration and may cause a defect such as a malfunction of the equipment or an occurrence of an abnormal sound etc 9 2 Non defective operation program operation No fault code display appears In order to control the heat pump unit there are the following operations as the built in program operations in the microcomputer If a claim occurs about the operation please confirm whether it falls under any of the contents in the following table If it does please understand that the symptom is not a defect of the equipment and it is an operation necessary for the control and maintenance of the heat pump unit Table 9 2 1 Non defective operation No Operation of the heat pump system Explanation The compressor sometimes does not operate even within the The compressor does not operate during the operation of the 1 of compressor ON compressor reboot timer 3 min Even after the power activation the compressor reboot timer continues to be active During the hot water supply or heating operation without It may be caused by the high temperature release control 2 reaching the set temperature the compressor operation release protection control by the temperature of the water frequency stays at a frequency of less than the maximum Hz or heat exchanger or the current release control lowers down The Stop operation on the remote control will not stop the In order to deal with the temperature increase in the heat
168. rations Operation instruction signal transmit Number of compressor revolutions control Outdoor unit control Number of outdoor fan motor revolutions control Pulse motor valve control 4 way valve control 1 Set the HOT WATER remote controller button to ON 2 The hydro unit controller starts to transmit a hot water supply operation signal to the outdoor unit control unit 3 The hydro unit performs the operation controls shown in the left while also controlling the circulation pump hot water cylinder heater ON OFF 4 The outdoor unit controls the compressor outdoor fan motor electric expansion valve and 4 way valve based on the operation signals transmitted by the hydro unit 3 Heating operation ZONE1 2 button set to ON Hydro unit control Operation instruction signal transmit Outdoor unit control Set temperature TSC F Heating temperature 20 to 55 Circulation pump ON OFF control Water 3 way valve control Water 2 way valve control Mixing Valve control Backup heater control Booster heater control Number of compressor revolutions control Number of outdoor fan motor revolutions control Pulse motor valve control 4 way valve control B 3S5 r 30 1 0 25 E LE 20 lt 1 4 2 20 T1 0 T3 20 A B C D E Setting available range 20 to 55 C T1 Setting available range 15 to 0 C
169. rature TSC Hiis hot water temperature Set with remote controller Related FC FC No Setting item Default Setting available range 1E Upper limit of hot water supply temperature 75 60 80 1F Lower limit of hot water supply temperature 40 C 40 60 20 Heat pump start temperature 38 20 45 21 Heat pump end temperature 45 40 50 24 Outside air correction start temperature for hot water supply 0 C 20 10 C 25 Outside air correction temperature for hot water supply 3 deg 0 15 deg 3 When the outside temperature is 0 C or below the boil up temperature will be higher that setting temperature in hot water supply mode 39 Item Operation flow and applicable data etc 8 2 2 Heating operation Operation Operation only for ZONE1 gt Mode and This operation is enabled when DP SW12 2 ZONE1 is set to ON default Control Method The remote controller displays __ZONE1 settings and only the set temperature of __ZONE1 can be changed Operation for and ZONE2 2 temperatures control This operation is enabled when DP SW12 2 ZONE1 is set to ON default and SW12 3 ZONE2 to ON The remote controller displays 20 1 20 2 Settings and the set temperatures of 20 1 ZONE2 can be changed To set temperatures for zoNE1 zoNE2 use SELECT to switch zoNE1 and 20
170. rminal A kl DICEN Sensor holder TO Sensor holder TE 79 Sensor holder TS a Sensor holder TD 160 i Number of pieces per unit Safety Location Part No Description P P No HWS 802H E 702 43063325 HOLDER SENSOR 708 43163055 HOLDER SENSOR 1 709 43163059 SPACER BUSH 1 710 43163060 SPACER COLLAR 1 712 43063322 HOLDER SENSOR 1 713 43063321 HOLDER SENSOR 1 161 Outdoor Unit HWS 1102H E 1402 001 1877 PR 4 e ro WAN SS SY NE NN Z 013 A021 015 162 Safety Location Number of pieces per unit AN No PartNo Description HWS 1102H E HWS 1402H E 001 43019904 HOLDER SENSOR 3 3 002 43032441 NIPPLE DRAIN 1 1 003 43041794 COMPRESSOR DA422A3F 25M 1 1 004 43047246 BONNET 3 8 IN 1 1 005 43047669 NUT FLANGE 2 2 006 43049739 CUSHION RUBBER 3 3 A 007 43050407 THERMOSTAT BIMETAL 1 1 008 43063317 HOLDER THERMOSTAT 1 1 009 43097212 NUT 3 3 010 43100437 PANEL FRONT PIPING 1 1 011 43100438 PANEL BACK PIPING 1 1 012 43100439 PANEL FRONT 1 1 013 43100440 PLATE ROOF 1 1 014 43100441 PANEL SIDE 1 1 015 43100442 PANEL AIR OUTLET 1 1 016 43100443 BAS
171. rol Diagnostic functional operation Check code Determination and action Operational cause Condition No communication between hydro Stop Defect in the remote control power Not unit an remote controller supply displaying at The remote control wiring is not 1 Check the remote controller wiring all connected correctly 2 Check the remote controller cannot The hydro unit has not been turned operate by on 3 Check the hydro unit power supply the remote wiring control 4 Check the water heat exchange control board No communication between hydro Stop Displayed when Defect in the reception of the remote unit and remote controller Automatic reset the abnormality control Disconnection of the crossover is detected 1 Check the remote control crossover E01 between the remote control and the 2 Check the remote control base unit of the indoor unit 3 Check the hvd iv wiri detected on the remote control SQN Me MY Gre Pew eh 5 WINNA side 4 Check the water heat exchanger board Defect in the signal transmission Stop Displayed when Defect in the transmission of the remote to the hydro unit Automatic reset the abnormality control E02 Detected on the remote control side is detected 1 Checkthe transmitter circuit inside the remote control Replace the remote control Several remote control base units Stop Displayed when 1 2 Check several base units with the E09 De
172. rt condition TTW 38 C In addition the hot water cylinder is immediately energized to start a Hot water supply operation under H 75 A hot water boost operation returns to the usual operation after 60 minutes The remote controller display during a hot water boost operation is the same as the set temperature display of a usual Hot water supply operation The usual set temperature change is used for changing the set temperature during a hot water boost operation Change the BOOST set temperature with 09 if necessary HOT WATER button set to ON HOT WATER BOOST button set to ON Heating side Current heat pump operation Hot water Switches to Hot water supply side supply operation 75 Hot water operation 60 minutes passed Usual operation Related FC FC No Setting item Default Setting available range 09 HOT WATER BOOST set temperature 75 40 80 08 HOT WATER BOOST operation time 60 mins 30 180 mins Every 10 mins 43 Operation flow and applicable data etc 8 2 Operation Mode and Control Method 8 Anti bacteria ANTI BACTERIA operation An anti bacteria operation regularly performs a Hot water supply operation with the set temperature 75 C can be set with FC 1 How to operate Pressing the HOT WATER button and then the remote controller ANTI BACTERIA button changes the setting to
173. s transmit and receive Outdoor Serial unit Serial signals transmit and receive unit control communication Remote control settings Heating Temperature setting Hot water supply Temperature setting Cooling Temperature setting Auto Temp Anti Bacteria Frost protection Hot waterboost AC 230 V for Hot water cylinder heater 400 V 3N for Back up heater Thermostat Cooling Heating Forcible stop input Water heat exchange Sub board Abnormal stop output Defrosting output Operation output Boiler ON OFF Booster Heater Condensed temperature sensor TC Water inlet temperature sensor TWI lt Water outlet temperature sensor TWO I Water heater outlet temperature sensor THO Hot water cylinder TTW Floor inlet sensor TFI lt Overheat prevention thermostat I Flow switch Hot water cylinder heater Backup heater 1 power relay Backup heater 2 power relay Water heat control board AC pump 1 Built in pump P AC 230 V for heat pump Outdoor unit contro Inverter frequency control Waveform synthesis function Calculation function Temperature calculation AD conversion function Rapid heating function Compressor restart Delay function G Tr overcurrent prevention function Defrosting operation function Compressor Inverter Outdoor fan motor H Te sensor 4 sensor
174. s passed the each function stops and LED D805 Green returns to continuous lit Special operation SW804 Operation when press button switch SW801 is pressed sweo4 Refrigerant recovery operation The outdoor unit operates cooling The hydro unit may freeze with this operation alone Remove beforehand the water the hydro unit See 16 1 Be o sweo4 Hydro unit cooling request e Performs a trial cooling operation See Note1 5 1 SW804 Hydro unit heating request Performs a trial heating operation See Note1 SW804 Fan motor forcible operation Forcibly performs a fan motor operation When SW801 is pressed again or after 2 minutes the operation returns to the normal control SW804 No operation particularly m Caution SW804 PMV full open operation Although these Fully opens PMV Pulse motor valve controls are available M When SW801 is pressed again or after 2 minutes the operation returns to the normal during an operation control basically perform them when no sweo4 PMV full close operation operation is in F
175. se the service valve Failure to do so may cause the refrigerant gas to leak in a room Although refrigerant gas alone is harmless if it catches fire of a fan heater a space heater or a stove poisonous gases may be produced When installing the unit or re installing it after relocation follow the installation guide for proper operation A defective installation may cause a refrigerant cycle defective a water leak an electric shock or a fire Check after repair After a repair is completed check for any abnormality Failure to do so may cause a fire an electric shock or an injury Turn off the power breaker to perform check After a repair is completed and the front panel and cabinet are placed make a test run to check for any abnormality such as smoke or abnormal sound Failure to do so may cause a fire or an electric shock Place the front panel and cabinet before making a test run Check after re installation gt Check that the following are properly performed after re installation 1 The ground wire is properly connected 2 The installation is stable without any tilt or wobbles Failure to check them may cause a fire an electric shock or an injury CAUTION Wear gloves Wear gloves when performing repair Failure to do so may cause an injury when accidentally contacting the parts Thick gloves such as cotton work gloves Cooling check Perform service work when the
176. t of the usual HP operation applies to the backup heater and booster heater When the heating room thermostat is CLOSE the heat pump performs thermostat off During the thermostat off the operation lowers the set water temperature by 1 deg every 30 minutes When the thermostat off is completed the backup heater and booster heater stops being energized 10 2 Cooling thermostat operation When the cooling room thermostat is CLOSE the usual cooling operation is performed Initial set water temperature 20 After 30 minutes has passed if the room thermostat continues to be in the OPEN status the operation lowers the water temperature 1 C every 30 minutes When the cooling room thermostat is OPEN the heat pump performs thermostat off During the thermostat off the operation raises the set water temperature by 1 degree every 30 minutes AS Correction control Heating operation Cooling operation OPEN Setting shift UP Thermostat ON Thermostat OFF Up water temperature by 1 deg every 30 Lower water temperature by 1 deg every mins 30 mins CLOSE Setting shift DOWN Thermostat OFF Thermostat ON Lower water temperature by 1 deg every Up water temperature by 1 deg every 30 30 mins mins 11 Forcible stop control Option board TCB PCMOSE is necessary Connect the connection cable to the water heat exchange board CN210 When CLOSE occurs between HEAT and COM of TCB PCMOSE the RED LED on the option board lig
177. t temperature TWI reaches 50 C The hot water cylinder sensor reaches the HP OFF temperature 45 C FC The HP ON temperature 38 C FC is reached without the hot water HP status HOT WATER BOOST operation is in progress TTW Abnormality detection 85 Diff 2K Y zone Heater off X zone Heater on Hot Water Boost Heater on only with Hot Water Boost in operation TSC_H HP_OFF 45 Heater on without hot water HP HP_ON 38 Hot water HP start 2 2 Heating operation 1 Heater control at the time of heat pump operation Object to be controlled Backup heater The backup heater control starts when 13 minutes has passed after the heating heat pump operation started and select the ZONE A D The backup heater control increases decreases or maintains the number of heaters every 10 minutes FC depending on the difference between the heating set temperature TSC_F and the heater outlet temperature THO When the heating set temperature is reached the hydro stops energizing the backup heater THO Abnormality detection Diff 2K Heater off 70 TSC F 2 Heater output down every 5 10 15 or 20 minutes TSC F 4 Diff 2K KEEP TSC F 6 Diff 2K Heater output up every 10 20 30 or 40 minutes Status Heater ON OFF Heater 1 Backup heater 3 kW Heater 2 Backup heater 9 kW The sing
178. te type DA220A2F 22L water heat exchanger TE Outdoor heat exchanger Accumulator 1800 cc 1 1 1 1 1 Compressor 1 1 1 1 1 Hydro unit Expansion vessel Manometer o Water vent valve C Air vent valve Backup heater Safety valve Circulating pump UPS025 65 130 Flow switch VH 8706 HWS 1402XWHM3 E 1402XWHT6 E 1402XWHT9 E 1102H E 1402 Outdoor unit Heating Hot water supply gt Defrosting Cooling pressure u sensor Pressure switch DA422A3F 25M STF 0401G wale heat exchanger Pulse motor valve UKV 25D100 Outdoor heat 1 Compressor 4 way valve Plate type 1 1 exchanger 2500 34 Hydro unit Expansion vessel Manometer o Water vent valve C Air vent valve Backup heater Safety valve _ Circulating pump UPS25 80 130 gt Flow switch VH 8705 e 8 Operational Description This chapter describes the working circuit and control of Air to Water Heat Pump about the following operations Item Page Basic Operation 1 Operation control 2 Hot water supply operation 3 Heating operation 4 Cooling operation 36 38 8 2 Operation Mode and Control Method 1 Hot water supply operation 2 Heating operation 3 Cooling operation 4 Simultaneous operation of hot water supply and heating 5 Simultaneous operation
179. tected on the remote control side The handset the abnormality remote control continues is detected The base unit is only one and others are handsets 73 9 4 Diagnosis flow chart for each error code 9 4 1 Hydro unit failure detection A01 Error Pump flow determination Operation restarts No No pump sound Pump rotates Perform air vent Yes Flow switch is connected to board No Excess air noise comes from inside the pump Yes No No Built in pump is connected to board Yes M No Flow switch is normal Chattering noise comes from flow switch Yes Pump stops 2 3 minutes after its rotation started Flow shortage Identify causes and resolve TC sensor characteristic is correct Dirt clogging inside strainer 12 M or longer water pipe to a branch or 5 or less branches Flow switch is normal Yes Water heat exchanger control board is defective replace it Connect flow switch connector to board Connect pump connector to board Replace flow switch Replace pump Replace sensor Remove waste Fit buffer tank and the second pump Attach or replace flow switch A02 Error Temperature rise and error short circuit TWITWO THO 70 No TWI TWO and THO sensor characteristics are Yes No Flow switch is normal Yes Water
180. ted FC FC No Setting item Default Setting available range 3A FROST PROTECTION Yes No 1 Yes 0 No 3B FROST PROTECTION Set temperature 15 10 20 45 Operation flow and applicable data etc 8 2 Operation Mode and Control Method 11 AUTO operation An auto operation sets the water temperature depending on the outside temperature TO by following the table below 1 How to operate Pressing the remote controller ZONE1 2 button and then the AUTO button starts AUTO operation for heating An operation starts at the set temperature of straight line approximation for the following water temperature 40 with the outside temperature 20 C FC 35 C with 10 C T1 FC 30 C with 0 C FC 25 C with 10 T3 and 20 with 20 For 2 temperature control although Auto Curve in ZONE2 shows 80 of that of ZONE1 FC the water temperature setting does not fall below 20 C During an AUTO operation pressing again the AUTO button returns to the usual manual set heating operation The remote controller displays A as the temperature during an AUTO operation When 2 temperature control is enabled the remote controller displays A A Long pressing the AUTO button during an AUTO operation activates the Auto Curve FC change mode enabling the set Auto Curve water temperature to be changed in the 5K range 27 Even if the temperature setting is chang
181. temperature sensor TH failure See F13 details Indication 1 Indication 2 gt Ooeeoo 0060000 EEPROM failure See 1 details Indication 1 Indication 2 gt oeoeoe Model not set See L10 details Indication 1 Indication 2 gt oOoeeooQ0 Heat sink overheat failure See P07 details Indication 1 Indication 2 gt O 6e O0 O 9 O Gas leakage failure See P15 details Indication 1 Indication 2 gt Ooeeoo 4 way valve invert failure See P19 details 93 Outdoor LED Check and Action procedure Check code indication No specific description indicates outdoor unit parts P03 Indication 1 Indication 2 gt Abnormal outlet temperature 6 No gas leakage No Correct defective portion Appropriate refrigerant amount Re charge refrigerant e e Yes Pulse motor valve is normal gt Correct detective portion Replace defective parts Yes Yes i over loaded Den NN causes CN603 connector is normal No Correct connector TD sensor resistance is normal Replace sensor Yes Check outdoor control board If defective replace it P04 Any of the following abnormality may occur S
182. the identification No Procedure of defect diagnosis Remark Matters to be confirmed first 9 1 1 Check the power supply voltage Check the power supply for the heat pump 9 1 2 Check for any miswiring of the connection hot water heater the crossover between cables between the hydro unit and the the hydro unit and the outdoor unit and the 9 1 outdoor unit installation of temperature sensors 9 1 3 About the installation of the temperature sensor 9 2 Non defective operation program operation Non defective program operations for the protection of the heat pump unit Outline of the determination 9 3 1 Procedure of defect diagnosis With reference to the check code diagram 9 3 2 How to determine from the check code roughly identify the defect from the defect display on the remote controller diagnosis for the heat pump hot water ie 9 3 3 How to cancel a check code on the heater and determine the defective part remote controller from individual symptoms 9 3 4 How to diagnose by error code Diagnosis flow chart foreach 9 4 1 Hydro unit failure detection 9 4 error code 9 4 2 Outdoor unit failure detection 9 4 3 Temperature sensor temperature resistance characteristic table Operation check by PC board 9 5 1 Operation check mode The operation check mode allows to determine good or not by checking the 9 5 operation of the 4 way valve 2 way and pulse motor valve 5 Brief method for checking the 9 6 1 Hydro unit
183. the set gt temperature be changed in the range of 10 to 55 Co v NE 3 Pressing the FORST PROTECTION button makes TIME DAY STEP OPERATE MODE HOT WATER BOOST disappear and the set temperature returns to the normal heating WW OO SET CL TEST FROSTPROTECTON AUTO TEMP ANTI BACTERIA e temperature Pressing the ZONE1 2 button ends both OO the frost protection and the heating operation 113 8 NIGHT Operation Setting For nighttime hours this setting changes set temperature of heating or cooling by 5k as save operation 1 Press the ZONE1 2 button to start a heating or a cooling operation See display C Nighttime operation is not available for hot water supply Use the schedule operation 2 Pressing the NIGHT button displays the lt symbol A nighttime operation lowers the set temperature by 5K for heating and raises 5K for cooling during the set time period 1 from 22 00 to 6 00 Default 3 Pressing the NIGHT button again makes disappear and the normal operation starts How to set NIGHT operation start and end time 1 Press the NIGHT button for 4 seconds or longer Moves to the NIGHT time setting mode See display C OE in the Code No field and the current time displayed blink 2 Press the TIME Y button to set a desired start time Pressing SET changes the time to be lit and the setting is confirmed 3
184. tinuously during the heat pump O 3 On load operation under the above 1 79 operation conditions 4 Defect in the pressure switch Low pressure sensor operation error 1 Almost no or little water flow The low pressure sensor detected 0 2 2 Defect of the flow switch Ads MPa or less x 3 On load cooling or prolonged 8 80 defrosting a lot of frost formation under the above conditions 4 Defect in the low pressure sensor 2 Overheat protection operation 1 No water heating without water or When the thermostat of the backup no water flow 2 09 heater activates during the operation of T 2 Defect of the flow switch T the heat pump or backup heater When the thermostat operation is 3 Defect of the backup heater poor 1 activated while it has been stopped automatic res t thermostat Operation of the release protection Heating AI tn ter fl Almost no water flow When the TWO release counts to 10 Cooling 2 Detedt otthsd itch 11 x x Defect of the flow switch 10 82 3 Check the water outlet temperature Hot water 0 sensor TWO Heating hot water heater 1 Activated by a large load of heating The antifreeze control is detected under or hot water supply the condition of TWI 20 C while 2 Check the heater power circuit A12 TWI gt 15 C TTW gt 20 C is not detected O or hot water cylinder 1 83 after the heater backup heater Power supply voltage breaker power supply connection Regular communication error
185. ture 0037 37 C 0055 55 C 0055 55 C 1B Lower limit of heating ZONE1 set temperature 0020 20 C 0037 37 C 0020 20 C 1C Upper limit of heating ZONE2 set temperature 0037 37 C 0055 55 C 0055 55 C 1D Lower limit of heating ZONE2 set temperature 0020 20 0037 37 C 0020 20 C 1E Upper limit of hot water set temperature 0060 60 C 0080 80 C 0075 75 C 1F Lower limit of hot water set temperature 0040 40 C 0060 60 C 0040 40 C 20 Hot water HP start temperature 0020 20 C 0045 45 C 0038 38 C 21 Hot water HP stop temperature 0040 40 C 0050 50 C 0045 45 C 22 Priority mode Hot water supply Heating switching 0020 20 C 0020 20 C 0000 0 C temperature 23 Priority mode Boiler Heat pump switching temperature 0020 20 C 0020 20 C 0010 10 C 24 Outside air temperature for hot water temperature 0020 20 C 0010 10 C 0000 0 C correction start 25 Hot water temperature correction value 0000 OK 0015 15K 0003 3K 26 Night set back change temperature range 0003 3K 0020 20K 0005 5K 27 Set temperature shift with heating Auto 0005 5K 0005 5K 0000 OK 29 Outside air temperature T1 temperature 0015 15 C 0000 0 C 0010 10 C 2B Outside air temperature T3 temperature 0000 0 C 0015 15 0010 10 2C ac A with outside air temperature of 0020 20 0055 55 0040 40 2D Set temperature with outside
186. ture sensor TS TH sensor error 1 Check the resistance value and F13 or short circuit in the heat sink connection of the heat sink 1 100 temperature sensor temperature sensor TH TE TS sensors error 1 Check for any wrong installation of 15 Open or short circuit the temperature x the heat exchange temperature 4 100 sensors sensor TE and the suction temperature sensor TS F31 EEPROM error x 1 100 Compressor breakdown 1 When the operation frequency lowers due to the current release 40 sec or later after the compressor activation 1 Check the power supply voltage and it in by underrunning the 230 23 V s A x 2 Over loaded condition of the d 2 When the operation frequency lowers refrigeration cycle due to the current limit control and it 4 my 3 Check that the service valve is fully stops by underrunning the minimum open frequency 3 When an excess current is detected 0 8 sec or later after the compressor activation Compressor lock P 1 Defect of compressor lock 1 When the input current is more than Replace the compressor H02 zero 20 or later after the 8 92 IE 2 Defect of compressor wiring open compressor activation and the phase activation has not been completed Defect in the current detection circuit 1 Replace the outdoor inverter control 8 92 board 70 Diagnostic functional operation N
187. ully closes PMV Pulse motor valve progress When SWS801 is pressed again or after 2 minutes the operation returns to the normal Performing these E control controls during an Scu operation may cause half open operation dangerously rapid Half opens 250 pulses PMV Pulse motor valve pressure change a When SW801 is pressed again or after 2 minutes the operation returns to the normal 5 Z e sweo4 4 way valve relay operation RY700 CN700 for check Ec Sets 4 way valve energization relay RY700 to ON He When SW801 is pressed again or after 2 minutes the operation returns to the normal control Sr Caution Do not connect the coil into the body when perform this operation 125 Operation when press button switch SW801 is pressed Self holding valve vacuum operation Switch to heating cycle 24808 RY700 RY701 RY705 CN701 for check a Sets relay RY700 RY701 and RY705 to ON 701 Between 1 to 4 Voltage Approx 325V m This function operates for 10 seconds After that it becomes OFF Self holding valve release operation Switch to cooling cycle SW804 T Sets relay RY700 to ON Caution 701 Between 1 to 4 Volta
188. um Minimum Maximum 38 lt TO W6 ws WC WA WD 29 C TO lt 38 C w5 WB W7 WB 15 W9 15 lt lt 29 WA ws W6 WA ws 5 lt TO lt 15 W3 W6 w5 ws W7 WA 0 C lt lt 5 C W2 WA WA W6 w5 ws 4 C lt lt 0 C W2 w3 w5 WA W6 TO lt 4 W1 W2 w1 WA W2 W6 TO abnormal W1 WC w1 WC W2 WD 59 Operation flow and applicable data etc 8 4 Outdoor unit control 5 2 Hot water supply and heating fan control 1 The TE sensor TO sensor and operation frequency control the outdoor fan The minimum W1 to the maximum are controlled according to the table below 2 For 3 minutes after the start the maximum fan tap for each zone that is shown in the following table is fixed After that the fan is controlled according to the TE sensor temperature 3 If TE gt 24 continues for 5 minutes the operation stops No error code is displayed for this the status is the same as the usual thermostat off The operation restarts after 150 seconds This intermittent running is not abnormal 4 If the situation in 3 frequently occurs the possible cause is that the filter in the air inlet part of the hydro unit is dusty Clean the filter and restart the operation TE 2 tap 20 secs to W1 Stop time count 2 tap 20 secs to W1 1 tap 20 secs to W1 Number of revolutions hold 1 tap 20 secs Up to the maximum
189. umber of Check naf abnormalities Detailed code Operational cause Backup Automat Determination and action for item P present ic reset confirmation Operation of case thermostat 1 Check the refrigeration cycle gas When the case thermostat exceeds leak 125 C 2 Check the case thermostat and Hod 2 connector T 3 Check that the service valve is fully open 4 Defect of the pulse motor valve 5 Check for a kinked piping Unset service PC board jumper L10 x 1 Cut J800 J803 1 92 Jumpers J800 J803 have not been cut S The communication between the outdoor PC board MUCs error L29 2999 5 E 1 Replace the outdoor control board 1 93 No communication signal between IPDU and CDB The outlet temperature error 1 Check the refrigeration cycle gas When the discharge temperature sensor leak TD exceeds 111 2 Defect of the pulse motor valve 4 94 3 Check the resistance value of the discharge temperature sensor TD P04 The high pressure switch error 10 94 power supply voltage error doc heri Check the power supply voltage x 5 When the power supply voltage is 230 V 23 V 4 94 extremely high low Overheating of heat sink error 1 Check the thread fastening and When the heat sink exceeds 105 heat sink grease between the outdoor control board and the heat P07 sink 4 95 2 Check the heat sink fan duct 3 Check t
190. unit becomes cool enough after the operation High temperature of compressor piping or other equipment after a cooling or heating operation may cause burn Tighten with torque wrench Tighten a flare nut with a torque wrench in the specified method A flare nut tightened too much might crack after a long period causing refrigerant leak 2 NEW REFRIGERANT 410 This Air to Water Heat Pump adopts a new refrigerant R410A to prevent destruction of the ozone layer The working pressure of R410A refrigerant is 1 6 times higher than that of the conventional refrigerant R22 The refrigerant oil is also changed for the new refrigeration Therefore during installation or service work be sure that water dust former refrigerant or refrigeration machine oil does not enter the refrigerant cycle of the new type refrigerant Air to Water Heat Pump A wrong installation or service operation may cause a serious accident Read carefully the following instructions to use the tools or members for R410A for safety work 2 1 Safety During Installation and Service Use only the refrigerant 410 for Air to Water Heat Pump using R410A A mixture of R410A with different ones excessively raises the pressure in a refrigerant cycle leading to an injury due to burst Check the refrigerant name to use the tools and members appropriate for the refrigerant A product using the refrigerant R410A has the refrigerant name prominently displa
191. upply and heating the unit flows water with the circulation pump when the temperature sensor value falls below a certain temperature 8 1 Piping freeze prevention control 1 1 Start condition TWO 4 C or THWI 4 C or THO lt 4 C 2 End condition TWO 2 5 C and TWI 2 5 and THO 2 5 C 3 1 How to operate circulation pump When the circulation pump is not in operation if the sensor detects the freeze prevention control start temperature the unit operate the circulation pump During a freeze prevention operation a heat pump operation does not start When neither HOT WATER nor ZONE 1 2 is in operation if the end condition is not met when 3 minutes has passed after an operation starts the unit performs the operation in 3 2 to prevent freeze 3 2 How to operate circulation pump backup heater When neither HOT WATER nor ZONE 1 2 is in operation if the end condition is not met when 3 minutes has passed after an operation starts End condition TWO 2 5 C and TWI 2 5 C and THO 2 5 C Heating with the set temperature 55 operates 3 3 Abnormal stop If a freeze prevention operation continues for 30 minutes and does not meet the end condition the operation stops as abnormal stop Remote controller check code A5 54 Item Operation flow and applicable data etc 8 3 8 2 Piping freeze prevention control 2 Hydro Unit TC and TWO activates freeze prevention regardless of a heat pump operation
192. ure indication No specific description indicates outdoor unit parts F12 Indication 1 Indication 2 gt Suction temperature sensor TS failure e TS sensor connector No Correct TS sensor CN600 is connected connection e 9 Yes TS sensor resistance No Replace TS sensor characteristic is normal Yes Replace outdoor control board F13 Indication 1 Indication 2 gt Heat sink temperature sensor TH failure Replace outdoor control board O e o o e Oo F15 Indication 1 Indication 2 Heat exchanger sensor TE TS wrong wiring and TS sensor is No Correct sensor attaching e attached to the correct position position e Yes sensor resistance No gt Repl TE characteristic is normal See the SENSO characteristic table on page 101 TS sensor resistance No gt Replace TS sensor characteristic is normal See the Yes characteristic table on page 101 Replace outdoor control board F31 Indication 1 Indication 2 gt EEPROM failure Check outdoor control board If defective replace it Ooeeoo 0060000 100 9 4 3 Temperature senso
193. ure sensor check TE sensor CN601 TS sensor CN600 Hydro TWO sensor If defective repair or replace it Replace 4 way coil 4 way valve coil resistance No is 1 3 to 1 6 KQ Outdoor control board operation check See below p 4 way valve check If defective replace it NG gt Check outdoor board If defective replace it Outdoor control board operation check direction Self hold valve 1 With the dip switch SW804 set as in the table below pressing SW801 for approx 1 second can check the operation of switching to cooling cycle or to heating cycle The board are energized for 10 seconds Take more than a minute for the next check because the parts coil resistance R700 generate large heat This does not apply when no coil is connected 2 After the check set all the SW804 dip switches to OFF Switching to cooling cycle Switching to heating cycle SW804 51801 CN701 NJ SW804 SW801 CN701 N gt gt Eq zw SCEX press SETT Press 180DCV or higher 180DCV or higher Note Check with a tester With an analog tester If a tester shows 180DCV or higher the board is good With digital tester Although values shown has some range if its maximum value is
194. utdoor fan system p29 Sensor TL detects 63 C during the including clogging 10 97 cooling operation 4 Over filling of refrigerant When the water outlet sensor TWO 5 Check the resistance value of the detects 60 during the heating or hot heat exchange temperature sensor water supply operation TL and the water outlet temperature sensor TWO Outdoor fan system error 1 Check the lock status of the motor When a DC fan rotor position detection fan P22 NG element short circuit loss of 2 Check the connection of the fan 1 4 98 synchronization or abnormal motor motor cable connector current occurs 3 Check the power supply voltage 230 V 23 V Short circuit of the compressor driver 1 P26 abnormality occurs when element error operating with the compressor When an abnormal short circuit of IGBT wiring disconnected Check the p26 is detected M control board 8 98 2 No abnormality occurs when operating with the compressor wiring disconnected Compressor rare short Compressor rotor position error 1 Even if the connection lead wire of The rotor position in the compressor the compressor is disconnected it cannot be detected Stops due to an abnormality in the position detection Replace the P29 x 8 98 inverter control board 2 Check the wire wound resistor of the compressor Short circuit Replace the compressor 72 Defect mode detected by the remote cont
195. way from the unit front surface center The value of the operating noise varies depending on room structure where the unit is installed 5 Do not leave the hydro unit at 5 C or below 6 Check the water piping for leakage under the maximum operating pressure 16 4 Outside Drawing 4 1 Hydro unit HWS 802XWHM3 E 802XWHT6 E HWS 1402XWHM93 E 1402XWHT6 E 1402XWHT9 E 2 dia 12x17 long hole for dia 8 10 anchor bolt 380 gt part Anchor bolt long hole pitch Anchor bolt long hole pitch Manometer Remote controler Er leg 2 dia 12x17 U shape hole for dia 8 10 anchor bolt Hot water outlet 116 connecting pipe 1 1 4 Gas line dia 15 88 Liquid line dia 9 52 Water inlet connecting pipe 1 1 4 17 4 2 Outdoor uni HWS 802H E ejou 1noxoou ge eiou edeus n 1 691 526 6 0 uonoeuuoo Z jo samo 10 1n04290UM 21 ejou jeuondo
196. wc WD WE WF 802H E 520 570 600 630 670 710 740 1102 Upper 530 610 640 660 720 780 890 1402H E Lower 550 630 660 700 740 820 910 5 1 Cooling fan control The TL sensor TO sensor and operation frequency control the outdoor fan The control is performed by 1 tap of the DC fan control 14 taps For 60 seconds after the start the maximum fan tap for each zone that is shown in the following table is fixed After that the fan is controlled according to the TL sensor temperature TL C WE ta 58 Sol een 1 tap 20 secs Up to the maximum number of rotation for each zone Number of rotation hold 38 35 1 tap 20 secs Up to the minimum number of rotation for each zone HWS 802H E Temnerat re ra ge Less than 20 Hz 20 Hiz or more to less 45 Hz or more Minimum Maximum Minimum Maximum Minimum Maximum 38 C lt W6 ws WE WA WE 29 C TO lt 38 C W5 WB W7 WD wg WD 15 C lt TO lt 29 WA ws W6 WA ws 5 lt lt 15 W6 W5 ws W7 WA 0 C lt lt 5 C W2 WA WA W6 w5 ws 4 C lt lt 0 C W2 W3 w3 w5 WA W6 TO lt 4 W2 OFF w3 TO abnormal OFF wc OFF WE OFF WE HWS 1102H E 1402H E 20 Hz or more to less Less than 20 Hz than 45 Hz 45 Hz or more Temperature range Minimum Maximum Minimum Maxim
197. ydro unit How to remove 1 Perform the step 1 1 step 5 6 and 10 2 Remove the fixed screws of the pump fixing board 5 1 04 x 8 2 screws 3 Remove the 2 nuts of the heater connection and the lower side of the pump 4 Remove the pump fixing board ST3T Q6 x 16 2 screws 5 Remove the nut of the upper part of the pump How to attach The pump connection uses a liquid packing for water seal When replacing the pump use a packing which was slathered with the liquid gasket Part code Service parts 37595721 Packing 37595722 Liquid gasket 1 Attach a new pump in the reverse order of the removal After the pump replacement repair open the water supply source valve and water piping valve to pass water through the hydro unit and check that the pump connection has no water leakage Pump fixing board 132 Exchange parts name Work procedure Remarks 13 Flow switch To replace a water circuit part first close the water supply source valve and the valve of water pipe connected to the hydro unit How to remove 1 Perform the step 1 1 and step 5 2 Remove the flow switch The flow switch connection uses an O ring for water seal Be careful not to scratch the O ring otherwise water leakage may occur How to attach 1 Attach a new flow switch in the reverse order of the removal Note
198. yed on its outdoor unit In addition the diameter of the service port is changed from that of the conventional R22 to prevent incorrect filling Ventilate if refrigerant gas leaks during service work Should refrigerant gas catch fire poisonous gases may be produced A closed room full of leaking refrigerant results in the absence of oxygen it is dangerous Make sure to ventilate When the refrigerant cycle is refilled with refrigerant do not mix air or refrigerants other than the specified refrigerant 410 A mixture of R410A with air or an inappropriate substance causes excessive high pressure inside the refrigerant cycle leading to an injury due to burst Check that no refrigerant gas leaks after the installation is completed Should a refrigerant gas leak in a room and catch fire poisonous gases may be produced When installing the unit that contains large amount of refrigerant such as Air to Water Heat Pump take measures to prevent the refrigerant from exceeding the threshold concentration in case it leaks Should leaking refrigerant exceed the threshold concentration could cause an accident due to oxygen deficient When installing the unit or re installing it after relocation follow the installation guide for proper operation A defective installation may cause a refrigerant cycle defective a water leak an electric shock or a fire Do not modify the product Do not disassemble or modify the parts also A fire an electric shock

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