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Modular Air Cooled Chiller/Heat Pump MAC210 DM5/DS5/DRM5

1. 950 45 170 101101 170 45 g R 1990 H L L L Unit mm Model A mm B mm MAC210DM5 DS5 MAC210DRM5 DRS5 171 369 MAC230DM5 DS5 MAC230DRM5 DRS5 165 390 Air conditioner MES N Ze NI i S V pi P 14x20 Enlarged drawing for Mounting hole of anchor bolt water entry Rc2 Air conditioner water outlet Rc2 335 2012 Shenzhen McQuay 13 4 Installation 4 4 Machine Installation Space Units must be installed by McQuay service staff or by specially trained personnel Units must installed by following relevant national and local electric building and environment protection standards as well as the installation manual Air outlet Unit mm IN pP Air outlet Note Theuser manual warranty card accessories and packing list are place at the right side of the unit as illustrated by the shaded part of the figure on the left Reserve sufficient maintenance space if possible If the unit is installed in a place where it snows in winter proper measures must be taken to protect the unit against snow and ensure that
2. ndara E pa o MAC P Control module interface MAC E S p E amp SS E 28 8 S E E EX EXV4 E z d E z a a amp G O0 G amp or d 7 Nen XE 7 ei sl o ei Wi mim S P mim ag Array iJ mg Xi om RW mi Top Top KMI interface i i interface N d d e e d LI oo LL Le Connection illustration for Pump connection illustration ke oilar eae el hancer y g Note Parts within the dashed box are to be connected onsite The output voltage of the module interface is 220 240 V Parts within the real line box are connected before delivery A cooling only unit has no 4WV1 and 4WV2 output A slave unit has no extension board MAC E HEAT BPHE electric heater PUMP water pump 4WV 4 way valve FANL fan at low speed FANH fan at high speed COMP compressor EXV Electronic expansion valve WHEAT auxiliary electric heater of the water system W TWV 2 way valve interlock of the water system B Setting up Address Using DIP Switch The controller can be used to set the unit s capacity address and slave unit number The capacity DIP has been set at delivery time and cannot be changed The address DIP and slave number DIP need to be set as needed after the unit is installed Customers need to take down the address number and location of the unit and keep the record in good condition for maintenance reference
3. l 8 9 5 B ON Reset S m m E m p 1 2 3 4 S2 S1 S2 S3 ON Upward represents 1 Downward represents 0 2012 Shenzhen McQuay R Aslave unit number must be set for the master unit not for slave units bits 5 8 of S1 Slave unit Slave unit number S P 4 number S S d 3 0 0 0 0 0 8 1 0 0 0 1 0 0 0 1 9 1 0 0 1 2 0 0 1 0 10 1 0 1 0 3 0 0 1 1 11 1 0 1 1 4 0 1 0 0 12 1 1 0 0 5 0 1 0 1 13 1 1 0 1 6 0 1 1 0 14 1 1 1 0 7 0 1 1 1 15 1 1 1 1 m DIP address setting 4 8 bits of S2 Address 4 5 6 7 8 Address 4 5 6 7 8 number number 0 0 0 0 0 0 8 0 1 0 0 0 1 0 0 0 0 1 9 0 1 0 0 1 2 0 0 0 1 0 10 0 1 0 1 0 3 0 0 0 1 1 11 0 1 0 1 1 4 0 0 1 0 0 12 0 1 1 0 0 5 0 0 1 0 1 13 0 1 1 0 1 6 0 0 1 1 0 14 0 1 1 1 0 7 0 0 1 1 1 15 0 1 1 1 1 lt The address number of the master unit must be set to l A conductor WTC pair with cross section area of at 0st and that of the slave units should follow this 2 least 0 5mm or 20AWG B insulator C Screen Address numbers must be unique in te same system layer twisted WTC with a screening factor no less R The unit can
4. INSTALLATION amp OPERATION MANUAL Part No M08014307008 Literature No MAC1202 A0 Modular Air Cooled Chiller Heat Pump MAC210 DM5 DS5 DRM5 DRS5 MAC230 DM5 DS5 DRM5 DRS5 ECOLOGICAL REFRIGERANT est Y milizia Rea KEK KRI ESTERASE i k L L IRRSRRRI jd LOTIT rrr aT 5818889981 RER eege ER ER i Nas d TT ZEHTEM ESHIRSESHREERRI HH GE TRRB5RRRR9 989089491 MAC ES P IM os Uu _ se wg Please appropriately keep this manual Please carefully read this manual before installing or using Table of Contents 1 Safety le 1 2 Produ t Informati n eer 5 SL POAUUNCS E dit adeat Len ag A E T AA EE ae aaa 5 2 2 Nomena sene a el ete ar EE EEN 6 22 gt L AED 7 S Specifications ee 8 al Specification Parameter S aiin 5o p i ft tege la iia i a ea a ia eee ees 8 3 2 Operating Temperature Hange gt vat 97492252 29 52UTa 924529 7YE Ye 9292 KE3 924 E5297YE KaRa aLaaa a aaka ndak adL NA essi nnns intent 9 3 3 Reference Table for Performance Parameters AA 10 3 4 Water Pressure Drop EE 11 3 5 z Dimensions ERE RUE latratu i t uult 12 SIE HOT WEE 13 4 1 Machine Installation Gpace A 12 4 2 lt eln nis Eae VUE 15 4 3 Installing chilled water TT tee e LER E e ee ee P ee ERR ee DER tre RR E ele eR XM ER bee pru ee Dee 15 4 4 Electrical Wirlng xii HR IRURE RAPI GINE UI URP UDINE 16 4 5 Connecting Water Pipes HT 19 4 6 Pipe Design for the Air Conditioning System
5. essere eee eee eee eee 22 4 7 Water Storage Tank Volume Calculating sse eee eee eee eee eee eee eee eee 23 4 8 Calculating volume of expansion water tank eee eee eee eee eee 24 4 9 Model Selection Principles for the Water Circulation Pump sees ee eee eee ee ee 24 5 User Manual for Controller EE 25 51 Features of the Controller aie a ai ape dt deg aai iia ege pue a a pea eda ae a 25 5 2 Size of the Controller ge diii edt ote ee dE e disce Lee Rt ee eee aed eden 25 5 3 F nctions of the Controllet ioci Garii o dee nied al ea 26 5 4 Controller Settings do tete d E uno dE Ee end Lo e RE el debe idee at aaa des 27 5 5 Controller Installation RESP 28 5 6 Controller Stoppage Code sss sese sese esse e ereer ereenn 29 6 COMMISSIONING and Operation EEN 30 6 1 Items to be Confirmed Before Turning on Un sese ee eee ee 30 6 2 Items to be Checked during the Pilot Hun 31 7T Repair and Malntenariee o iue Cot rb ea Ee bb e ate ot i tele 32 A Ee EE 32 Te Maintenance ERE 33 8 Stoppage and Handling waked daca al ar kak rn liue px ak e KR aeo v KEEN REF b E 34 8 1 Stoppage Code and Running Gatus enne nnne nennen ness rst 955 sen tente 34 8 2 Cause for failure and troubleshooting sese eee ee eee 35 9 Water Quality Ee Ee nn E 42 9 1 Water Quality Requirements 5 neret idt au eee t EE epe p erede n ED deed 42 2012 ShenZhen McQuay 9 2 Water Processing Ed le TTT 42 TONOUCS eH at 44 11 After sales Services EE 46 12 Maintenance
6. 1 6 2 3 1 7 2 4 1 7 2 4 1 6 2 1 1 8 2 3 2012 Shenzhen McQuay 23 Table 2 Pipe diameter and resistance loss in unit length Diameter of the Closed water system Open water system steel tube mm Water flow m7 h kPa 100m Water flow m7 h kPa 100m 15 0 0 5 0 60 20 0 5 1 0 10 60 25 1 2 10 60 0 1 3 0 43 32 2 4 10 60 1 3 2 0 11 40 40 4 6 10 60 2 4 10 40 50 6 11 10 60 4 8 65 11 18 10 60 8 14 80 18 32 10 60 14 22 100 32 65 10 60 22 45 125 65 115 10 60 45 82 10 40 Note Parameters in the preceding table may vary based on the design manual For details see the HVAC Design Manual 4 7 Water Storage Tank Volume Calculating Model ec ens N ot Minimum working volume Vmin I 14 237 13 290 MAC210DM5 DS5 12 375 MAC210DRM5 DRS5 11 529 10 900 9 3000 14 264 13 324 MAC230DM5 DS5 12 419 MAC230DRM5 DRS5 11 591 10 1005 9 3350 Note B The minimum working volume refers to the added up volume of the main water pipe water tank and constantly open terminals of 2 way valves in the water circulation system RB The actual working volume of the water system must be larger than Vmin otherwise the unit will send out alarms and shut down frequently B if the actual resultful volume of the water system V is less than Vmin please install a tank the
7. 10 ice eue e we E o compressor Checktheoillevel ll A Check the color of the lubricant II T d IA Controller Check parameter settings Il LA Check protectivedevice Jl a y Delay protector LL 4 Phase order protector LL A High low pressure switch WE SE DR A Differential water pressure switch water flow switch Overload protector JL LA y Protector against extreme temperature of discharged air Plate heat exchanger Check the water quality e Clean the plate heat exchanger PE Seasonal protection measures anti freeze in winter 4 Fin heat exchanger Clean the fin heat exchanger a j J Whether the Y shaped filter needs to be cleaned or replaced Whether bolts have loosened e Note The preceding maintenance plan is for reference only The maintenance plan may vary based on region Note e indicates items to be checked by customers A indicates items to be checked by service personnel 2012 Shenzhen McQuay 8 Stoppage and Handling 34 8 1 Stoppage Code and Running Status B Characters displayed by the LED indicator are explained in the following table CharacterMeaningCharacterMeaningCharacterMe
8. License number and installation date see the Warranty Card Detailed symptoms Your name address and phone number Post warranty Repair Ask the dealer for help If the unit is repairable we provide charged services Maintenance After several service seasons the performance of the unit will lower down if dust accumulates inside it In addition to daily service and maintenance work done by yourself we recommend you to signa maintenance contract with the dealer Please ask the dealer for detailed information about this service Consultancy Ask the dealer for detailed information about after sales services 2 Warranty Period A warranty card is attached to the product After filling in necessary information the seller will entrust you with the Repair Application Table Check that information in the Repair Application Table is correct and then keep it in good condition Warranty Period The guaranteed period lasts one year since the product is purchased See Repair Application Table for more details McQuay provides free repair services in the warranty period if customers inform the dealer and produce the warranty card Services might be charged even during the warranty period if customers fail to inform the dealer and produce the warranty card 2012 Shenzhen McQuay 12 Maintenance Repair Record B Failure description and troubleshooting measures should be described as detailed and clear as possible For troubleshooting m
9. Repair Record sees sese epo Hxc RE e d KH edad Mena 47 2012 ShenZhen McQuay 1 Safety Considerations Read this chapter carefully before using the unit A Caution This symbol represents an operation which can cause lethal or major injuries if not correctly performed AN Note This symbol represents an operation that can cause damage to the unit or bodily injury if not correctly performed Q This symbol represents important instructions that must be followed This symbol represents forbidden operations W Points for Attention for Installation and Usage To make the unit work with the optimal performance the following instructions must be followed and non conformances must be rectified before starting the unit Installation and maintenance must be B Optional parts must be installed by performed by professional customer professional customer service personnel service personnel from the Company Customers can select only optional parts that Installation and maintenance must be are recommended by the Company otherwise performed by specially trained and certificated electric shock or fire might be incurred Q professional customer service personnel Q Measures must be taken to prevent Installation must be performed according refrigerant leakage to the user manual When a unit is installed indoor concrete Incorrect installation can cause accidents such measures must be taken to prevent refrigerant as damage to the unit refr
10. controller displays 1 Check whether the electric 17 pay current parameter of the overload Over current in the fan has protector is configured correctly Fan overload in 2 triggered the overload by referring to the electric circuit protector 2 Check whether the resistor of the malfunctioned fan meets specification requirements 1 Check whether the electric TN current parameter of the overload The LED indicator of the unit displays Over current in the pump has protectors configured correctly f for the pump by referring to the 6 ER18 and the wire Pump overload triggered the overload alectrie circuit pd displays protector 2 Check whether the resistor of the malfunctioned pump meets specification requirements 1 The pump model is too small Replace the pump 2 d water filter is clogged Clean the water filter 3 Air in the water system is Turn on the pump to further not completely discharged discharge residual air The LED indicator 4 The differential water of the unit displays Alarm from the pressure switch is clogged d M EN RM 7 ER19 and the wire differential water up P SR displays pressure switch 5 ode ee Replace the differential water Se dowii pressure switch 6 Pressure drop in the water System is too sharp and Optimize the water system unbalanced 7 Other parts in the water A system are clogged up Sheck andirepair 1 The motor has broken down cooling 2 Circulatory air is shorted Check and troubleshoot coolin
11. k RN Eva ss E Al k 7 7 3 7 16 j 1 1 2 1 a S pai mz ws wes rez soe 194 952 208 011 7 i W 5 3 2 6 7 NN a Ambient temp C Outlet Be TO capaci Power Pea Power Meets Power feud Power Peers Power Carr Power LUES Power UE Po vor Ia 1 w ean w ORRY w Ve aw Van Y dw Tac w UA kW 7 k Zo 7 CD ower i S S 2 9 d 21 8 23 0 25 0 15 6 17 2 18 8 20 7 22 6 24 9 7 d Note Parameters in the above table are measured when the unit operates at the rated water flow 2012 Shenzhen McQuay 11 MAC230DR MAC210D MAC210DR MAC230D Water pressure drop 90 3 4 Water Pressure Drop W Curve for Water Pressure Drop edy doup eunssaJd 1e1eM 16 15 5 15 14 5 2012 Shenzhen McQuay 10 5 11 11 5 12 12 5 13 13 5 14 Water flow m3 h 8 5 9 5 10 7 5 The water pressure drop of the unit is the test result when a plate heat exchanger and the accessory Y shaped filter are The water resistance of the plate heat exchanger and the Y shaped filter are tested with pure water H the onsite water quality changes the test result may be different from that shown in the figure installed Note 1 2 3 5 Dimensions m Modular Air Cooled Chiller Heat Pump MAC210DM5 DS5 MAC210DRM5 DRS5 MAC230DM5 DS5 MAC230DRM5 DRS5 Mounting hole of anchor bolt 14 14x20
12. note the controller quits the parameter setting mode if no key is pressed within 60 seconds Real time setting To set week and time stick the small hole above the MODE key using a needle like tool the LCD displays Weekday Setting press A or V to choose the weekday stick the small hole again to save weekday setting the LCD displays Time Setting and the time starts to blink press A to change the hour and V to change the minute and stick the small hole again to save time setting Timer Setting After pressing TIMING the LCD displays Week Setting and Timer Setting at the same time Then you can press A or V to choose the weekday and press OK to save the weekday setting The LCD now displays Timer Setting and you can continue to set the times of timing Press A or V to set the number of timed actions for the day you can set 4 as indicated above Unit No Select a timed action and press OK to select the action timed ON OFF Press A or V to select Timed On or Timed Off and press OK Now the LCD displays Timer Setting and Time Setting and the time displayed starts to blink 2012 Shenzhen McQuay 28 YOU Can press A to change the hour and Y to change the minute and press OK to save the time setting Now the LCD displays Timer Setting and returns to step You can continue to set other timed actions for a whole week and then quit this setting mode To cancel a timed act
13. of chilled water modular combination of multiple units Air outle Water refill mar D 3 0 ul n a e p T s SI P T L bx Cn ir o DK E ES i d yd Lo he Ho Deo he he pe npe pe Ke p Legends for the water system illustration wy AN LN H Gate valve j Non return valve _ Water pressure gauge Thermometer wO we t Proportional integral valve E T Water circulation pump 1 Soft connector Electric 2 way valve TT Globe valve Size of the main connecting pipe for modular combinations Differential pressure bypass valve replenishment Water Dno x n pl KH T Ges Full E MURUS GH SES discharge NI DN Open expansion tank Unit Qty 1 2 3 4 5 6 10 Size of main connecting pipe inch 22 23 24 25 Note When cleaning the water system please shut gate valve and open gate valve marked in the diagram of all the units in orde
14. or failure requirements replace if not There is something wrong with the test circuit of the temperature sensor in the Replace the control module control module Hall ete peed S Check the control module and has broken off re plug the temperature sensor Test whether the resistance of TH8 30 ee THB temperature TES temperature Sensors sensor meets specification of the unit displays sens r fail shorted open R ER47 ailure requirements replace if not There is something wrong with the test circuit of the temperature sensor in the Replace the control module control module eeler IS Check the control module and has broken off re plug the temperature sensor T Test whether the resistance of TH9 31 The LED indicator TH9 temperature Tilg temperature sensor is sensor meets specification of the unit displays s nsor tail shorted open ER48 ailure requirements replace if not There is something wrong with the test circuit of the temperature sensor in the Replace the control module control module Mabe Tenet usse or Check the control module and has broken off re plug the temperature sensor eius Test whether the resistance of TH10 32 SEE UE E TH10 temperature S NUR SEM sensor meets specification ER49 sensor failure H requirements replace if not There is something wrong with the test circuit of the temperature sensor in the Replace the control module control module n ae Check the control module and has broken off re plug the temperature sens
15. selected unit The control system has the following functions S N Function S N Function Controlling the 2 way valve of the water 1 system relevant accessories need to be 11 Timing purchase separately Anti freeze protection for plate heat 2 12 Protection for Compressors in Operation exchanger 3 Alternative defrosting 13 Averaging Workload among Compressors 4 Manual defrosting 14 Failure alarm viewing and output Memorizin rameters in th f 5 2 way Valve Interlock Control 15 ee power failure Setting and resetting the operating 6 Week Setting 16 parameters of the unit 7 Status display 17 Electric heater 8 Auto startup at power on 18 Setting the clock of the system Displaying the i inl 9 Setting the serial number of a unit 19 SpeyihgdneqnegorenmonietWetsr temperatures Memorizing the clock settings in the case of a power failure 2012 Shenzhen McQuay 27 5 4 Controller Settings no A Parameter Viewing The controller can be used to view the operation status and parameters of any unit connected to it Parameters can be view include operation status of the compressor inlet outlet water temperature timer setting cooling antifreeze temperature setting antifreeze temperature setting in winter defrosting temperature and so on After pressing the UNIT key you can increase decrease the blinking unit No and view the parameters of the curre
16. the unit works properly Mag gt lt m Assembling Unit Modules Ts fe ZE A e Note e e D The groundwork must be a concrete K p i W Ww DEE K g Y floor or a V iron structure that is S 1d H TL foundation Bott M12x200 strong enough to bear the operation pressure of the unit NE OI N represents the number of modules 365 845 400 845 845 265 installed Each unit must be fixed by 4 M12 bolts 6 rubber cushions of 20mm thick 400 must be installed between the unit 24680 1560 and the groundwork The groundwork must have draining facilities to discharge condensate water and defrosting water 400 2012 Shenzhen McQuay 14 B Space allocated for a single chilled water unit N s pl ra E gt LARI gt L1 h2 E Uy 2 Deflector gt 45 V e te H a oi V 7 Y E 7 A f b Z Front L A L 777777 VY 2
17. time Pee C C AM Press ON OFF to turn on off the unit the RUN indicator lights up goes out You can stick this hole using a needle like R Button for setti ng the tool to reset the controller S Re S Pa ES s w m Ncc j N A D c Bd week and time When you stick the small hole using a needle like tool the time and password area displays the week and time setting options then you can press A or V to set the 1 Change the display on the function display screen according to a specified week and time sequence 2 Set the temperature Mode selection button Press the Mode key can switch between heating and cooling Note that heating cooling can only be switched when the unit is off OK button This button is used to set the clock timer Password button When you press PASSWORD the text box at the lower bottom of the LCD displays Input password and 00 Then you can press A or Y to change the temperature password unit number and other H H parameters Timer setting button This function can be used to specify different ON OFF times for different units After pressing the unit key you can press the A or Y button to change the value select a unit number and press OK after getting the correct and view the status of the password After you have chosen the correct password the text box continues to display time
18. volume of which is L LZ Vmin V Example for water system volume calculation There are 2 MAC230DR5 modular units with temperature of return water set to 12 a main inlet out water pipe of DN80 and 50m long and 10 fans with coils constantly open each has a volume of 1 5 L Calculation Volume of main inlet outlet water pipe 3 14 80 2 100 500 251 L Volume of terminal fan coils 10 1 5 2 15L According to the table above Vmin 2419 L To avoid frequent unit startup shutdown and alarms the volume of the water tank should be no less than Vmin V 419 251 15 153 L 2012 Shenzhen McQuay 24 4 8 Calculating volume of expansion water tank An expansion water tank with a proper volume must be installed to adapt to water volume changes as the temperature changes and avoid freezing burst and pressure instability at the water pump inlet The expansion water tank can also be used to supplement water and discharge air Calculating volume of expansion water tank Vp a At Vs Vp effective volume of the expansion water tank volume of water between the signal pipe and the overflow pipe m a volume expansion coefficient of water a 20 0006 C At max water temperature variation C Vs water volume in the system total water volume in the system and pipes m 4 9 Model Selection Principles for the Water Circulation Pump M Water flow in the water circulation pump rated water flow x 1 1 R Closed water ci
19. 0A R22 omitted Model Standard model omitted LC standard model for cooling in low temperature LH standard model for heating in low temperature SR total heat recovery Power supply features F 380 415V 3N 50Hz A 220 240V 50Hz Detailed description on product specification AA AB AC ZZ etc Export Domestic sales code omitted China B Australia M Mexico U America E Other region etc 2012 Shenzhen McQuay 2 3 Unit Main Parts m Modular Air Cooled Chiller Heat Pump MAC210DM5 DS5 MAC210DRM5 DRS5 MAC230DM5 DS5 MAC230DRM5 DRS5 Fan amp Motor Outlet air p deflector pin heat exchanger Protective screen at the front Accumulator lt Scroll E compressor Bug Water inlet pipe Liquid receiver Electric components 7 Water outlet pipe 2012 Shenzhen McQuay 3 Specifications 3 1 Specification Parameters Nominal cooing capacity xw soo ar so 9 Nominal nesingcapasty ww T 89 Cooling input power w vee 198 2 s Cosing sprain wren A ass ma 399 399 KS GH ES ESCH 380 415 V 3N 50Hz Effect Grade Power supply Le Hermetic scroll compressor 2 te Broad wheel axial fans with low noise emo nue 2 H L power input ES 1 15x2 0 45x2 Efficient plate heat exchanger exchanger i To ater Se Ge meo wa eo ma Water pipe connecti
20. 13 be U n Back RS gt L N N 7 z Li N A H SAK S A Ps 29 A Y zi AIL amp A j 9 S N S j F AZ U YZ W X X X S LZ M Space allotted for an array of chilled water units SID II I LLL LS E Es 25 Pd p Back S Back Es s S fi i n 212 pa SS D A A K X RN f 70 213 ze Unit mm L1 L2 L3 400 800 100 2012 Shenzhen McQuay 4 2 Hoisting Chillers Please hoist the unit according to the following illustrations Tie the cables to the four corners of the unit while moving it If you tie the cables to only three corners of the unit the unit might get unbalanced and fall off Protective cushion L Hoisting cable two NN lt 40 Note R Chilled water units must be moved with great care B Accessory strips cannot be used to hoist or move the unit as they might break and cause unexpected accidents B Do not touch the heat sinks of the heat exchanger bear handedly as they might cut your fingers B Dispose all plastic bags properly and keep them away from children 4 3 Installing Chiller B The groundwork should be made of concrete or supporting structures While designing the groundwork you must fully consider the strength of the floor water discharge the unit discharges water while working pipelining and wiring If the floor is not strong enough the unit might fall off and breakdown even incur bodily injuries B Screw down the chilled water unit using anchor bolts so that it will not fall o
21. 24 41 TH2 temperature sensor malfunction 7 19 Water flow is too small 25 42 TH3 temperature sensor malfunction 8 20 High pressure of 1 26 43 TH4 temperature sensor malfunction 9 21 Low pressure of 1 27 45 TH6 temperature sensor malfunction 10 24 High pressure of 2 28 46 TH7 temperature sensor malfunction 11 25 DIR SNE 29 47 TH8 temperature sensor malfunction 12 26 edd DISC HRSTIGRTS RUN RO 30 48 TH9 temperature sensor malfunction 13 27 Ambient temperature is too high low 31 49 TH10 temperature sensor malfunction 14 29 Superheat of 1 is too low 32 50 TH11 temperature sensor malfunction 15 32 suction temperature 1 is too high 33 51 TH12 temperature sensor malfunction 16 33 discharge temperature 1 is too high 34 52 Low pressure sensor malfunction of 2 17 34 suction temperature 2 is too high 35 53 Low pressure sensor malfunction of 1 18 35 discharge temperature 2 is too high 36 F6 Communication failure between wire controller and master unit 2012 Shenzhen McQuay 6 Commissioning and Operation 6 1 ltems to be Confirmed Before Turning on Unit Note Before the pilot run check that the following conditions are met and read the Safety Precautions again m Ensure that the water pump and the unit are connected Control the on and off the water pump using the water pump output on the PCB controller otherwise the BPHE may burst due to freezing The water pump connection point must have no voltage If a voltage circuit is c
22. G The electric leakage breaker must be correct configured The electric leakage breaker must be installed according to the electric specifications incorrect installation might cause electric shock The power cable must not be too tight otherwise the cable might break and cause fire or other accidents G The unit must be properly grounded The grounding line must not be connected to the gas pipe water pipe lightning proof rods or telephone lines Incorrect grounding method may cause electric shock accidents Q The voltage fluctuations of the power supply must not exceed 10 of the rated voltage The power cable must be separated from welder transformers which could cause great voltage fluctuations Q Do not touch the compressor and high temperature parts of the refrigerant circuit They may cause burning injuries GQ Do not touch cutting edges and heat exchanger fins Avoid contact with cutting edges and coil surfaces which may cause bodily injuries S Select an installation site where water can be smoothly discharged If water cannot be smoothly discharged the unit might be affected by moisture S Prepare protective equipment and installation tools Personal protective equipment such as gloves and work uniforms can help to prevent accidental bodily injuries y Inj Q The unit must not be installed in a harsh environment Do not install the unit in dirty grimy salty or sulfured places d S D
23. Q Shut down the unit and cut off the power supply before any maintenance work otherwise a fire and bodily injury may be incurred Drain the water in the unit if the unit is to be suspended for a long time If the unit is to be suspended for a long time fill the water pipes with antifreeze or drain the water from the unit otherwise the unit might be frozen and burst S Do not pile or hang anything on the unit If you pile or hung anything on the unit the object may fall and cause accidents G Do not operate the unit with a wet hand otherwise an electric shock may be incurred S Do not touch revolving parts of the unit otherwise a bodily injury may be incurred G If the unit malfunctions cut off the power supply and contact the dealer for help immediately o Considerations for Injecting the R410 refrigerant W Fill the unit with liquid refrigerant Gas refrigerant may change and degrade the performance of the unit M Do not use the original refrigerant circuit The original refrigerant circuit contains refrigerant and antifreeze that contains Chloride which may degrade the antifreeze oil of the new unit 2012 ShenZhen McQuay TTP e cWuay iS McQuay is a registered trademark of McQuay International and is valid across the world 2012 McQuay International This manual is intended for the current products of McQuay International Product design and structures are subject to cha
24. aningCharacterMeaning vharacterMeaningCharacterMeaningCharacterMeaningCharacterMeaningcharacterMeaningCharacterMeaningCharacterMeaningvharacterMeaning Blog s 8 4 amp 5 s BgBs RHi LIic EEI H uH l HIN eln U v 11 4I mis ASA M s B BJud b R t t tP rt b TMN Y B Codes representing normal operation statuses are explained in the following table Code Status Code Status Code Status DULL NULL standby SP CSP shutdown during cooling HEAL HEAT heating ERL BEST reset dEF DEE defrosting HSP HSP shutdown during heating L DHL COOL cooling RB Codes displayed by the LED indicator and explanations Error Error Error qune onda Description code Description node Description ECXX XXH slave communication ER30 Reserved ER45 TH6 temperature sensor failure malfunction Overload of compressor fan Slave master TH7 temperature sensor ETE in 1 indi communication failure ERAS malfunction Overload of compressor fan suction temperature 1 is TH8 temperature sensor ERE in 2 G too high ER47 malfunction discharge temperature 1 is TH9 temperature sensor ER18 Pump overload ER33 too high ER48 malfunction e suction temperature 2 is TH10 temperature sensor ER19 Water flow is too small ER34 too high ER49 malfunetion discharge temperature 2 is TH11 temperature sensor ER20 High pressure of 1 ER35 too high ER50 malfunction TH12 temperature sensor ER21 Low pressure of 1 ER36 Low pressure of 2 ER51 malfunction Low pressure sensor ER22 Reserved ER37 Superh
25. bers insects or other impurities which might clog up fins of the condenser Clean use water or water vapor W Check the status of the chilled water from time to time Discharge water by loosening the air or water discharge plug If the water quality degrades replace water in the system timely for the reference standards see page 42 Contaminated water can degrade the cooling capacity and corrode the heat exchanger and water pipes W Check whether free air exists in the water pipe system Free air may get into the system even during the air discharging process Discharge air from time to time W Clean the Y shaped water filter in the water system periodically B Replenishing refrigerant and lubricant Each unit is filled with enough refrigerant and lubricant before delivery If the system operates smoothly customers neither need nor are allowed to replenish or change the refrigerant or lubricant If replenishment is necessary due to leakage please refill the quantity specified in the nameplate of the unit 2012 Shenzhen McQuay 33 7 2 Maintenance The unit must be checked on a routine basis to ensure performance Routine check is the best way to reduce downtime and waste The following needs to be checked on a routine basis 1 Compressor Performance appraisal whether there is EM d abnormal sound Whether wires are Whether wires are securely connected connected Whether the working current is abnormal DUE fluctuation
26. ct the connecting lines of pressure Sensors the low pressure sensor incorrectly connected 2 The low pressure sensor is Repair or replace the lines of the low The LED indicator shorted open pressure sensor prs Low pressure sensor 36 oftheunit displays f 3 The Low pressure sensor ER53 failure of 1 has broken down Replace the low pressure sensor 4 There is something wrong with the test circuit of the low pressure sensor in the control module Replace the control module 2012 Shenzhen McQuay 9 Water Quality Management 9 1 Water Quality Requirements Water in the water system must be softened to prevent scale in the heat exchanger and affecting the heat exchanger performance Water not softened can also cause scale in the water pipes and cause the water resistance to increase This affects the water flow and the performance of the water pump Softened water must meet the following requirements 42 Benchmark Tendencies tem value Corrosion Scaling pH 25 7 0 9 0 o o Conductivity 25 uS cm lt 800 o o CI mg CI L 200 o SE coe mg SOZyL 200 o tub der c ey mg CaCOS L 100 o Total hardness mg CaCO3yL 200 o Fe mg Fe L 1 0 S o Reference S mg S L 0 items NH mg NH L 1 0 SiO2 mg SiOz L lt 50 o Note o represents factors that may cause corrosion or scaling Water from the water system is tap water that m
27. eat of 2 is too low ER52 malfunction of 2 Low pressure sensor ER23 Reserved ER38 Refrigerant leakage in 1 ER53 malfunction of 1 e Communication failure for ER24 High pressure of 2 ER39 Refrigerant leakage in 2 EC78 all slave units Temperature of inlet TH1 temperature sensor ibas outlet water is too low dud malfunction ER26 Overload of electric heater ER41 TH2 temperature sensor in water system malfunction ER27 Ambient temperature is too ER42 TH3 temperature sensor high low malfunction TH4 temperature sensor ER28 Reserved ER43 malfunction ER29 Superheat of 1 is too low ER44 Reserved 2012 Shenzhen McQuay 8 2 Cause for failure and troubleshooting 35 Possible causes for the S N Error code Description failure Solution A B communication lines of the wire controller and master unit are incorrectly Check and troubleshoot the connected communication lines The communication line has broken off Communication wires Rewire the unit use shielded between the wire controller communication lines or keep the and the master unit cross communication lines away from over strong current cables strong current cables Control panel of the master Check and troubleshoot the control unit is not powered on panel Communication C ne 1 Use shield lines Wire controller failure between wire 2 Short the JP7 jumper on the 1 F6 alarm contr
28. em persists replace the 4 way The LED indicator valve of the unit displays Temperature of return The winding of the 4 way C 16 ER32 and the wire air in 1 is too high valve operates abnormally Replace tne winding controller displays 40 C The temperature of 32 discharge air is too high and has triggered the see Item 17 in the table racing protector of the compressor The fan motor has broken down cooling Circulatory air is shorted Check and troubleshoot the unit cooling The heat exchanger needs The LED indicator cleaning cooling of the unit displays Temperature of ee a N ea Check and troubleshoot the 17 ER33 and the wire discharge air in 1 is expected henin electronic expansion valve controller displays too high e 2 Change the setting for return water 33 GE temperature Is temperature to be performed by service personnel Insufficient refrigerant or Replenish a proper amount of leakage refrigerant e Change the defrosting parameter to Incomplete defrosting be performed by service personnel l Restart the unit and slap slightly on US faki aid both sides of the 4 way valve If the middle J problem persists replace the 4 way The LED indicator valve of the unit displays Temperature of return The winding of the 4 way 18 ER34 and the wire air in 2 is too high valve operates abnormally Replace ie winging controller displays 40 The temperature of 34 discharge air is too high and has triggered the see Item 19 i
29. ending on the water quality and must be cleared using chemicals from time to time Therefore a chemical cleaning pipe connector needs to be installed at the water pipes see the following figure m The water flow must be in the rated range If the water flow is too small scale may accumulate and degrade the performance of the unit cause the antifreeze device to activate or cause rust points and refrigerant leakage If the water flow is too large the unit may be corroded due to water impact mA adiabatic water tank with a proper volume is suggested to installed If the capacity is too small the unit might frequently restart which causes wear and tear on the compressor m An expansion water tank must be installed at the return water side of the water system to adapt to water pressure variations in the water supply system caused by ambient temperature changes WB An auto relief valve must be installed at the highest point in the water system A suitable water discharge valve must be installed at the lowest point in the water system m The water pipes must be adiabatic to avoid heat loss and condensate water B Please follow the Illustration for water system installation and drawings from the design institute while installing the water system B Install the Y shaped water filter inside the water inlet pipe and rinse the filter screen after commissioning R Before injecting water make sure that no sand rubble rust soldering tin residue or oth
30. er impurities exist in the pipe as these things might damage the heat exchanger While rinsing the water system please bypass the unit and the terminal heat exchanger using by pass valves W Installation illustration for the water system of a single unit Expansion water tank 8 SL x MEM Chiller A M z E e 8 E LE SE B i l N T pe e per AM I i i oed o X G gt x PREY TS pu A Ser SE T 7 9 Chillec hot water outlet CL H R Q SS 2012 Shenzhen McQuay 20 Multi unit combination illustration for water system with fixed chilled water flow which conditions indoor air by modulating the terminal air rate Water replenishment Full Air outlet Water DN20 Fan coil Fan coil Fan coil Gate valve eK Gate valve I 5o Gate valve z o E bai Lu o0 D 2 7 E 27 By y S 277 8 T 9 c bal ey gd Ly ICH Ly 2012 Shenzhen McQuay 21 R Illustration for variable flow rate water system which adjusts indoor temperature by adjusting flow rate
31. es or telephone lines Improper grounding might cause electric shock accidents RB Check that the power supply matches relevant specifications Minimum diameter of power cord mm Max working current Max input power ES Main line Neutral Grounding A KW R S T line line MAC210DMS DS5_ 10 6 10 MAC210DRM5 DRS5 10 6 10 TB MAC230DM5 DS5 10 6 10 ao LI er MAC230DRM5 DRS5 10 6 10 7 286 The above electric parameters are for basic modular units All wires must be securely connected Wires must not contact the refrigerating pipes or moving parts of the compressor and the fan B L Power Cable Connection Diagram 380 415V 3N 50Hz L1 e D L2 bd kd L3 e N D D PE Breaking with a current leakage protector Breaking with a current leakage protector Breaking with a current leakage protector d HE PS TN BS TIN BH 5S TIN Master unit O Slave unit 14 S lave unit 2012 Shenzhen McQuay 17 B Connection illustration for the pump and the auxiliary heat exchanger
32. ethods see Chapter 8 Stoppage and Handling B f an unknown failure occurs shut down the unit immediately cut off the power supply and contact the local dealer for help B Keep this record page in good condition McQuay Air Conditioning Shenzhen Co Ltd Address Pinghu Shenzhen Guangdong Province Tel 0755 28456472 Fax 0755 28456469 Postal code 518111 2012 Shenzhen McQuay McQuav Air Conditioning We have tried our utmost to ensure the accuracy of all the details contained in each manual As we are always committed to technological improvement the units and specifications are subject to change without further notice Please refer to the nameplate In addition to meet local criteria and customer requirements we may modify the units and specifications Please also take notice that not all the models suit every market
33. ey is pressed it makes sure that we can browse or modify parameters even in dark 5 2 Size of the Controller 120mm 18mm POWER RUN l 7 ED uo L3 C 2 Se UNIT No MODE QE E ENTER E NER Ce E ten Gee ER PASSWORD TIMER 2012 Shenzhen McQuay 26 5 3 Functions of the Controller Function Display Area This area can display inlet temperature outlet temperature antifreeze temperature defrosting interval defrosting stop temperature defrosting Compressor operation status This area displays the operation status of the compressor The value 1 indicates that compressor 1 is working If no value is displayed no compressor is working A B point and capacity calculation frequency Mode display This area displays the current ON OFF display This area displays the ON OFF status of the unit Unit number display This area displays the unit number unit number is displayed according to the DIP working mode of the unit Ste ee desint Time and password display vn PH O ie n H i Temp Sri In normal conditions this area displays the current time LILI Ij When you press Password this area display the password 3 settings mode When you press Week and Time Setting POWER RUN Switch settings ihis area displays the current
34. ff in case of strong wind or earthquakes To avoid damages caused by strong wind or earthquakes The unit must be securely installed at a proper place to avoid direct hit of strong winds B Depending on mounting conditions operation vibration might pass through the groundwork and generate noises in the floor and walls Therefore proper vibration dampening mechanisms such as bumper cushion bumper frame etc should be in place W Corners and edges should be properly installed Otherwise the unit might get unbalanced and cause the grounding pins to bend The unit might fall off and cause bodily injuries if it is not properly installed 2012 Shenzhen McQuay 4 4 Electrical Wiring Wiring must observe the following safety rules and measures W Units must be installed by McQuay service staff or by specially trained personnel Units must be installed by following relevant national and local electric building and environment protection standards as well as the installation manual Customers must not add or remove any controlling parts without permission McQuay does not assume any liability for any equipment damage bodily injury or death due to installation operations that violate these safety rules RB Electrical wiring should be done by following the Electrical Wiring and Parameters Each unit is supplied with a wiring diagram inside the junction box B The unit must be well grounded The grounding line must not be connected to gas water pip
35. fluorine side filter is clogged up Check and replace The LED indicator 2 Ze water temperature Is Tune down the water temperature Sale too high heating af the unit le Plays 6 The water flow is too small 10 ER24 and the wire High pressure of 2 heating Check and troubleshoot controller displays 7 The MEE filter is clogged 24 up heating Clean the water filter 8 The ambient temperature OFF is too high cooling Release a proper amount of 9 Too much refrigerant refrigerant 10 Failure of high voltage modular output port Replace the module Th I uus L Replace pressure switch The LED indicator 1 The temperature of return Change the temperature setting for of the unit displays Temperature of water is set too low return water 11 ER25 and the wire inlet outlet water is 2 The water flow is too small controller displays too low resulting in a large EE SE 25 pressure drop The LED indicator 1 Check whether the water Short the overload switch for the of the unit displays system is equipped with an electric heater if there is no electric ER26 Overload of electric electric heater heater in the water system je and the wire neater iri water 2 The heating wire of the controller displays system electric heater in the water eee b ngatenorine 26 system is shorted y The LED indicator 1 The ambient temperature Replace the ambient temperature of the unit displays sensor has broken down sensor 13 ER27 Ambient temperature and the wire is to
36. g 3 The heat exchanger needs cleaning cooling 4 The fluorine side filter is clogged up Check and replace The LED indicator S The water temperature G Tune down the water temperature of the unit displays E 8 ER20 and the wire Low pressure of 1 2 ee EES Check and troubleshoot controller displays 7 The water filter is clogged 20 99 Clean the water filter up heating 8 The ambient temperature OFF is too high cooling d Release a proper amount of 9 Too much refrigerant refrigerant 10 Failure of high voltage modular output port Replace the module 11 The switch has broken down Replace pressure switch 2012 Shenzhen McQuay 37 Possible causes for the S N Error code Description failure Solution 1 Malfunction of heat Check and troubleshoot the outdoor exchanger during heating unit et 2 Malfunction of motor during Check and troubleshoot the outdoor The LED indicator heati of the unit displays eating Motor 9 ER21 and the wire Low pressure of 1 3 Wes al refrigerantior Check and replenish refrigerant contoller dispiays 4 Failure of low voltage 21 modular input port Replace the module 5 The low pressure sensor fas broken down Replace the pressure sensor 1 The motor has broken down cooling 2 Circulatory air is shorted Check and troubleshoot cooling 3 The heat exchanger needs cleaning cooling 4 The
37. igerant leakage leakage If the refrigerant leaks and the density electric shock or fire of the refrigerant in the air reaches a certain threshold people might be suffocated Proper measures must be taken to protect the unit against strong wind and Electric parts must be protected against earthquake during the installation moisture otherwise the unit might fall off and cause otherwise electric shock fire and other accidents accidents might be incurred The installation groundwork must be A dedicated circuit must be designed and strong enough installed by professional customer service The unit must be installed on a strong personnel groundwork to prevent the unit from falling off Electric installation must meet the Electric and causing accidents A Equipment Engineering Standards and Indoor Electric Equipment Wiring Specifications Power cables of incorrect specifications may incur Q electric leakage fire or other accidents 2012 ShenZhen McQuay A Installation Precautions Hot and cold water that is used must meet the water quality requirements If the water quality does not meet the specified requirements the durability and performance of the unit may be degraded and water leakage may occur in serious situations For details about the water quality requirements see 9 1 Water Quality Requirements Q Do not use refrigerant or anti free oil of the incorrect model otherwise fire or explosion may be incurred
38. ion set the time for this action to 00 00 To cancel all timed actions press MODE UNIT until you hear a long beeping sound Note Timed ON OFF actions are triggered when the time of the wire controller reaches the set time Therefore if the time of the wire controller is inaccurate the actual ON OFF time could also be inaccurate In the timing process if you do not press any key in five seconds after pressing the Unit Mode or Password button the timing process is terminated and the result is not saved The default time setting is 00 00 5 Manual Defrost When the unit works in heating mode press A or V until Manual Defrosting appears and then press OK to enter Manual Defrosting mode 6 Reset The controller can be reset by sticking the small hole above the A key using a needle like tool 5 5 Controller Installation Connected to power supply 220 240V 50Hz 2012 Shenzhen McQuay 5 6 Controller Stoppage Code 29 S N Code Symptoms S N Code Symptoms 1 00 0 slave communication failure 19 36 Low pressure of 2 2 01 13 1 13 slave communication failure 20 37 Superheat of 2 is too low 3 14 14 slave communication failure 21 38 Refrigerant leakage in 1 4 16 Overload of compressor fan in 1 22 39 Refrigerant leakage in 2 5 17 Overload of compressor fan in 2 23 40 TH1 temperature sensor malfunction 6 18 Pump overload
39. irements replace if not There is something wrong with the test circuit of the temperature sensor in the Replace the control module control module Des S ud IS Check the control module and Pae bikon di 99 re plug the temperature sensor TH4 temperature sensor is Test whether the resistance of TH4 er sensor meets specification 27 The LED indicator TH4 temperature shorted open requirements replace if not of the unit displays ER43 sensor failure There is something wrong with the test circuit of the temperature sensor in the control module Replace the control module 2012 Shenzhen McQuay 40 Possible causes for the S N Error code Description failure Solution ee IS Check the control module and has Broken off re plug the temperature sensor T Test whether the resistance of TH6 28 The LED indicator TH6 temperature Th temperature Sensors sensor meets specification of the unit displays fail shorted open ER45 sensor failure requirements replace if not There is something wrong with the test circuit of the temperature sensor in the Replace the control module control module Pub ceni IS Check the control module and Fas bakan off re plug the temperature sensor T f Test whether the resistance of TH7 29 The EED indicator TH7 temperature dior temperature Sensors sensor meets specification of the unit displays sensor fail shorted open b ER46
40. its are well balanced and that the air conditioning system works with the best water and thermal conditions B The pipe system of an air conditioning system must meet the adjustment requirements for partial workload m The pipe system of an air conditioning system should use energy saving technologies whenever possible B Pipes and accessories of the pipe system must meet the related requirements m The design of the pipe system must facilitate maintenance operation and adjustment Determining the diameter of pipes in the air conditioning system The pipe diameter is determined based on the following pr 4m In the formula My water flow m s d N 314v V water speed m s The water speed should be determined by the recommendations in the first table and design the water pipe diameters accordingly or you can determine the water pipe diameter based on water flow in the second table Table 1 Recommended water speed m s Diameter mm 12 20 25 32 40 50 65 80 Closed water system 0 4 0 5 0 5 0 6 0 6 0 7 0 7 0 9 0 8 1 0 0 9 1 2 1 1 1 4 1 2 1 6 Open water system 0 3 0 4 0 4 0 5 0 5 0 6 0 6 0 8 0 7 0 9 0 9 1 0 0 9 1 2 1 1 1 4 Diameter mm 100 125 150 200 250 300 350 400 Closed water system 1 3 1 8 1 5 2 0 1 6 2 2 1 8 2 5 1 8 2 6 1 9 2 9 1 6 2 5 1 8 2 6 Open water system 1 2 1 6 1 4 1 8 1 5 2 0
41. let water temperature difference Temperature 2 70 8 Discharge air temperature of the compressor Temperature 65 115C 9 Low temperature in cooling mode Pressure 6 5 10 0bar 10 High temperature in cooling mode Pressure 22 41 5bar 11 Low temperature in heating mode Pressure 3 0 10 0bar 12 High temperature in heating mode Pressure 22 33bar 12 Vibration and operation noise Listen or touch No abnormal vibration or noise Note The reference standards are used to check whether a unit works properly onsite Reference standards are determined based on the maximum and minimum working conditions If reference standards are exceeds after the unit has properly worked for a period of time contact the local dealer or McQuay for help 2012 Shenzhen McQuay 32 7 Repair and Maintenance 7 1 Repair Note Before checking and maintaining the unit confirm the safety precautions again Note Before delivery strict factory test is conducted to ensure the unit works at optimal performance The unit must be maintained from time to time B The unit can only be repaired and serviced by specially trained technicians After a unit is serviced safety controls must be checked and analyzed before the unit is turned on Items to be Checked Periodically W Clean the fin heat exchanger periodically To optimize heat exchange efficiency of the condenser check that the external part of the condenser is clean without leaves cotton fi
42. ly frequency Rated frequency 2 Variations between phases Rated voltage 2 Air quality Must not contain solute that can corrode copper aluminum or iron Flow rate of chilled water 0 5 2 0m s Pressure of chilled water 0 7Mpa Must not contain solute that can corrode copper iron or welding material Quality of chilled water For details on the water quality requirements see Chapter 9 Water Quality Management page 42 Installation site Take anti snow and ventilation measures as required Ambient temp Refer to the figure above Note 1 The unit is strictly tested before delivery and can work safely in the rated working conditions 2 For the performance parameters of the unit in different working conditions see 3 3 Reference Table for Performance Parameters 3 This is the normal operating temperature range for the unit Beyond this temperature range the unit can only operate for a short moment before a failure alarm is triggered 2012 Shenzhen McQuay 3 3 Reference Table for Performance Parameters B Cooling Capacity Variation Table Ambient temp C Outlet temp Cooling Cooling Cooling Cooling Cooling Cooling Cooling Cooling E fd capacit ed capacit Ga capacit pd capacit frd capacit fs capacit pud capacit y y KW y KW y KW y kW y KW y kW y kW S 1 i S 1 T 9 1 1 5 E 2 s f d 21 1 9 i l 1 1 2 91 S s f 2 1 d wer W E P EIN s we n es oo
43. n the table racing protector of the compressor The fan motor has broken down cooling Circulatory air is shorted Check and troubleshoot the unit cooling The heat exchanger needs The LED indicator cleaning cooling of the unit displays Temperature of A uh Check and troubleshoot the 19 ER35 and the wire discharge air in 2 is Greter thiet electronic expansion valve SOR displays too high e Change the setting for return water Ge Cond Temperatures temperature to be performed by service personnel Insufficient refrigerant or Replenish a proper amount of leakage refrigerant Change the defrosting parameter to Incomplete de rosting be performed by service personnel The LED indicator of the unit displays e 20 ER36 and the wire Low pressure of 2 Malfunction of heat Check and troubleshoot the outdoor controller displays 36 exchanger during heating unit 2012 Shenzhen McQuay 39 Possible causes for the S N Error code Description failure Solution Malfunction of motor during Check and troubleshoot the outdoor S heating motor The LED indicator es of the unit displays ete refrigerant or Check and replenish refrigerant 20 ER36 and the wire Low pressure of 2 Ge SET SES displays modular input port H Replace the module ae Sor qe Sensor Replace the pressure sensor The LED indicator The low pressure sensor or of the unit displays
44. nge without further notice 2012 ShenZhen McQuay 2 Product Information 2 1 Features B Overview McQuay MAC series air cooled chilled water heat pump units are highly reliable secure and flexible This series of units are elaborately designed to be delicate and elegant In addition they are so flexible that they support fan coils and air handling units of various specifications and models Units of this series are marked for their high efficiency low noise user friendliness secure operation easy installation and maintenance etc and are widely used in factories stations hotels villas office buildings top grade residences etc Besides they can also be used in industrial chilling W Multi grade Modulation MAC210 230 series units feature 2 grade modulation which can be transformed to multi grade modulations in modular combinations For example 8 MAC210 units can realize 16 modulation grades with effects very similar to that of stepless modulation With operation grades controlled electronically the unit exerts less shock to the power grid and saves more energy R Outstanding Performance MAC series units feature leading edge technologies and name brand accessories which are strictly tested for compatibility Fully hermetic volute compressor and low noise fans minimize the operation noise With efficient volute compressors and precise throttling systems with electronic expansion valves the units feature high EER and COP especiall
45. nt unit by pressing A or V To view more working parameters of a unit you can press OK and A or V after reaching the unit No Setting Parameters parameters can be set only when the unit is turned off When you press PASSWORD the text box at the lower bottom of the LCD displays Input password and 00 Then you can press A or V to change the number and press OK after getting the correct password the default password set in factory is 55 After you have chosen the correct password the parameters to be set blinks and you can perform the following settings Change operation parameters after choosing the correct password you can change operation parameters by following steps 22 3 0 Change password after choosing the correct password you can change the password by pressing PASSWORD again In this case the text box displays 00 and you can change the number by pressing A or V After reaching the number you want to set as the password you can complete password setting and exit the parameter setting mode by pressing OK After pressing the UNIT key you can increase decrease the blinking unit No by pressing A or V and set operation parameters including inlet water temperature for cooling heating mode for the desired unit by pressing OK after reaching the unit No You can choose and set parameters by pressing A or Y and then press OK to save the setting Repeat step to set other parameters
46. o high low 2 The ambient temperature OFF controller displays is too high low 27 The LED indicator 1 The low pressure sensor or of the unit displays temperature sensor has Replace 14 ER29 Superheat of 1 is broken down and the wire too low 2 The electronic expansion controller displays valve fails to provide Upgrade the modular program 29 proper control 1 Communication line of the Check and troubleshoot the slave unit has broken off communication lines Reset the addresses of all slave units E Communication 2 Incorrect DIP address P T m fall r between ie setting for the slave unit us that there is no duplicate Sieg unit displays master unit and slave units 3 The number of slave unitis Reset the number of slave units and set incorrectly for the master unit check that the number match with all the addresses 2012 Shenzhen McQuay 38 Possible causes for the S N Error code Description failure Solution 1 Exchange positions of the two The PC communication 485 on the slave unit TT Communication port of the slave unit has 15 Bee failure between the broken down 2 Replace the control panel of the ER31 p ay master unit and slave unit units M RE Connect the communication line of connected Y the slave unit to the Apc Bpc port Restart the unit and slap slightly on S A Md both sides of the 4 way valve If the middle J probl
47. o not install the unit in a place with possible gas leakage Leaked gas around the unit might cause accidents such as fire or explosion S Properly protective measures must be taken before installing a unit in a hospital near a communication base station or similar places Frequency converters electric generators high frequency medical equipment and wireless communication devices can affect the performance of the unit or cause the unit to fail The unit must be moved with great caution A unit that is heavier than 20 kg cannot be moved by one person alone and must be moved with special machinery 2012 ShenZhen McQuay AN Usage Considerations Do not turning on or off the unit by directly turning on the power supply Switch otherwise a fire or electric shock accident may be incurred Q Do not change the settings of safety devices otherwise fire or explosion may be incurred G Do not use a fuse that exceeds the upper currency limit If the fuse is replaced with a wire or other conductors the unit may be damaged and a fire may be incurred S Do not short the safety device to shut down the unit otherwise a fire or explosion may be incurred and the unit may be damaged S Do not use the unit for purposes other than it is intended for The unit is not intended to store food animal or plant precision equipment or art objects Storing these objects using the unit may degrade the quality of these objects
48. oller and master See E control panel SR Can communicate with the monitoring software while Remove the R44 resistor on the wire the wire controller sends controller or replace the wire out the alarm controller F6 Failure of communication ports on the control panel Replace of the master unit Failure of communication Replace ports on the wire controller Reset the S2 DIP switch of the T at E master unit according to the technical specifications Communication line of e Check and troubleshoot the slave Unit No XX has communication lines broken off I GE A d Check and troubleshoot the control ort panel The LED indicator Reset the addresses of all slave units of the unit displays Incorrect DIP address X and check that there is no duplicate ECXX Communication setting for the slave unit address 2 and the wire failure of Slave Unit The number of slave unitis Reset the number of slave units and controller displays No XX set incorrectly for the check that the number match with all XX XX represents master unit the addresses 00 14 The PC communication 1 Exchange positions of the two port of the slave unit has 485 on Slave Unit No XX broken down 2 Replace the control panel Mrs Bi Connect the communication line of Slave Unit No XX to Apc Bpc port incorrectly connected The Bin Ain Reconnect the communication line to communication line of the the Bin Ain port and screw down the master unit has broken off wire terminal The LED indicato
49. on size DN50 Designed maximum temperature difference between input and output water Unit Length x Height x Wai 199084051840 Note 1 Nominal Refrigerating Capacity Condition Out flowing water temperature 7 water flow 0 172 m h kW Outdoor temperature 35 2 Nominal Heating Capacity Condition Out flowing water temperature 45 water flow 0 172 m h kW Outdoor dry bulb temperature 7 wet bulb temperat ure 6 C 3 The specifications given in the table will be subject to the modifications on product design by the manufacturer No notice will be further given 2012 Shenzhen McQuay 3 2 Operating Temperature Range B Operating Temperature Range 50r Note Ensure that the water flow is 45 f within the specified range If the gt 40 c d water flow is too small scale may zx 35 L S 3 Cooling accumulate and degrade the 3 S ch performance of the unit cause the i 20 antifreeze device to activate or 15 L Heating cause rust points and refrigerant B L leakage If the water flow is too 0 f large the unit may be corroded due is to water impact 5 10 15 20 25 30 35 40 45 50 55 60 65 Outlet water temp C B Water flow range Due e e o7 f ao m Working Conditions Item Description T o RS 2 ae D Power supply voltage Rated voltage 10 Power supp
50. only be powered on and commissioned niin LP E after the address numbers are configured R Control Communication Wire Connection mE S x j Ir Ape Bin Ain o D lt o ES Master unit Slave Unit No n Illustration of shielded twisted pair Better choose network cables with a tenser Slave Unit No n 1 Bpo Apc Bin A pc Apc Bin Ain shielding layer and smaller twisting distance Bpo Apc Bin Aj AC 220 240V 50Hz SIE gt l Power adapter Wire controller Please refer to the UL2547 or UL2791 wire specification The control wire must not be longer than 1000 meters The control wire must be at least 20cm away from maior current wire 2012 Shenzhen McQuay 4 5 Connecting Water Pipes B No water pump is provided as an accessory A proper water pump must be installed to overcome resistance of the water pipes m Water pressure gauges and thermometers must be installed at the water inlets and outlets to facilitate the reading of unit operation status RB The heat exchanger at the water side is made of stainless steel Water scale may accumulate dep
51. onnected basic components may be damaged m Power on the unit to preheat the crankcase for at least 12 hours before starting up the unit for the first time or after a long term stoppage This ensures that the compressor works properly m Before turning on the unit check that the water pump is filled with water Before turning on the water pump open the water supply valve fill the pump with water and discharge free air in the system m Wiring of the unit Check that the diameter of the wires meets requirements the wires are correctly connected the grounding line is securely connected m Before turning on the unit clean the water system and ensure that pipes are clean without contaminants For the cleaning method see 4 5 Connecting Water Pipes m Make sure that the working conditions do not exceed the rated working range 2012 Shenzhen McQuay 6 2 Items to be Checked during the Pilot Run Check the following items after the unit has worked properly for a period of time 31 S N Item Checking Method Reference Standard 1 Power supply voltage Voltage Rated voltage 10 2 Working current of a single compressor Current 13 283A 3 Working current of a single fan Current 2 5A 4 Inlet water temperature in cooling operation Temperature 15 20 5 Outlet water temperature in cooling operation Temperature 6 150 6 Inlet water temperature in heating operation Temperature 30 45 7 Inlet out
52. or indi Test whether the resistance of TH11 33 a jene ned TH11 temperature At sengor sensor meets specification ER50 sensor failure H requirements replace if not There is something wrong with the test circuit of the temperature sensor in the Replace the control module control module run e hes Check the control module and re plug the temperature sensor E ous has broken off The LED indicator TH12 temperature 34 of the unit displays p ER51 sensor failure TH12 temperature sensor is shorted open Test whether the resistance of TH12 sensor meets specification requirements replace if not 2012 Shenzhen McQuay 41 Possible causes for the S N Error code Description failure Solution n D 3 There is something wrong The LED indicator SE hae TH12 temperature with the test circuit of the 34 ius unit displays sensor failure temperature sensor in the Replace the control module control module T GE Reconnect the connecting lines of incorrectly connected the low pressure sensor 2 Thelow pressure sensor is Repair or replace the lines of the low The LED indicator shorted open pressure sensor e Low pressure sensor 35 of the unit displays 3 The Low pressure sensor ER52 failure of 2 has broke dew Replace the low pressure sensor 4 There is something wrong with the test circuit of the Replace the control module low pressure sensor in the control module Ts Three Ms A pe SR Reconne
53. outlet of the unit otherwise the unit might be damaged even resulting in bodily injuries Air conditioned rooms should be regularly ventilated otherwise there might not be enough oxygen Do not spray combustible materials such as pesticide paint etc which might incur fire onto the unit Do not stand on or pile up anything on the unit Do not touch the unit with wet hand otherwise you might get electric shock Use fuse of the correct specification The fuse cannot be replaced by wires or other conductors otherwise the unit might break down or cause fire The unit must be turned off and disconnected from the power supply before any servicing or repairing work to avoid the risk of electric shock and bodily injuries The unit must be well earthed grounded The grounding line must not be connected to gas water pipes or telephone lines Improper grounding might cause electric shock accidents Install an anti leakage device to prevent electric leakage from causing bodily injuries 2012 Shenzhen McQuay 46 11 After sales Services amp Warranty 1 After sales Services Maintenance and repair must be done by the dealer Improper maintenance and repair might incur water leakage electric shock or fire Moving or reinstalling the unit must be done by the dealer Improper installation might incur water leakage electric shock or fire Please provide the following information while asking for service Unit model see the Warranty Card
54. r Communication One of the A B 3 of the unit displays failure for all slave communication lines is Check the communication line EC78 units connected incorrectly d Ee Replace the control panel of the master unit down 1 Check whether the electric The LED indicator current parameter of the overload of the unit displays Over current in the compressor rotector is configured correctly 4 ER16 and ihe wire Compressor overload has triggered the SCH 9 referring to the electric circuit controller displays 16 in 1 protector 2 Check whether the resistor of the malfunctioned compressor meets specification requirements 2012 Shenzhen McQuay 36 Possible causes for the S N Error code Description failure Solution 1 Check whether the electric current parameter of the overload Over current in the fan has protector is configured correctly 4 Fan overload in 1 triggered the overload by referring to the electric circuit protector 2 Check whether the resistor of the malfunctioned fan meets specification requirements 1 Check whether the electric current parameter of the overload Over current in the compressor protector is configured correctly m SEHR has triggered the overload by referring to the electric circuit er protector 2 Check whether the resistor of the Under EM malfunctioned compressor meets 5 ER17 and pude specification requirements
55. r to bypass the units so the impurities can be prevented from entering the plate heat exchanger and the efficiency and service life of plate heat exchanger can not be affected 2012 Shenzhen McQuay 22 4 6 Pipe Design for the Air Conditioning System B The pipes of an air conditioning system must have sufficient transportation capacities For example the water system must ensure that the water flowing through the air conditioning unit or fan coil reaches the rated flow rate to ensure that the unit works properly B Deploy pipes properly Use pipes with reverse return if possible Although the initial investment is increased a little the water flow in the system is more stable If pipes have no reverse return design pressure between branch pipes must be balanced in the design process B When determining the diameters of pipes ensure that the transportation capacity is sufficient the resistance and noise is minimal and that the unit works economically A larger pipe diameter requires more investment but the flow resistance is smaller the circulation pump consumes less energy and the operation cost is smaller Therefore a balance needs to be achieved between the operation cost and investment by designing the pipe diameter properly Avoid a large water flow with small temperature variation to ensure that the pipe system is economical m Inthe design process calculate water resistance accurately to ensure that water pressures between circu
56. rculation system Water circulation pump lift 2 Pipe resistance of the water system Partial resistance of the water system Water pressure drop of the unit x 1 1 R Open water circulation system Water circulation pump lift Static resistance of the water system Pipe resistance of the water system Partial resistance of the water system Water pressure drop of the unit x 1 1 B Inthe case that multiple units share the same pump the pump lift is calculated according to the circuit that has the maximum resistance usually the unit that is farthest away from the pump 2012 Shenzhen McQuay 25 5 User Manual for Controller 5 1 Features of the Controller MC305 is a wall mounted LCD controller which directly controls air conditioners through keys on its panel Features Two operation modes heating cooling note operation modes can only be switched when the unit is off Temperature setting range for inlet water cooling 9 C 25 C heating 25 50C Temperature setting range for inlet water cooling 9 25 10 CC 10 for units with low water temperature heating 25 50C Temperature setting range for anti freeze 2C 5 ALED is used to indicate the status of the unit ON OFF Timed ON OFF a timing schedule can be set for a maximum of 7 days with up to 4 timed actions each day Real time clock Error code display speeds up diagnosis Blue back light will shine 8 second if any k
57. system is working in the heating mode with the main power supply turned on 2012 Shenzhen McQuay M Highly Adaptive The unit shell is made of galvanized phosphorized steel plate with pure polyester plating to withstand weathering The unit is reasonably designed to save space It can be mounted on walls balconies or the roof thus eliminating the need for a dedicated equipment room The unit is highly adaptive and can operate smoothly in hostile conditions such as extremely high or low temperatures B Easy Maintenance To access and service any part of the unit you just need to dismantle the side panel or the front panel When the unit stops working abnormally the controller prompts the reason to facilitate troubleshooting 2 2 Nomenclature MAC 210 D R M 5 LH F CAE Export Domestic sales code Model code Cooling capacity code Detailed description on product specification Design S N Power supply Functional type Product type Code for parallel connected units Refrigerant code Model code MAC MACS etc Cooling capacity code 050 080 150 etc Design S N A B C etc Functional type R heat pump omitted in chiller Code for parallel connected units For modular air cooled chiller heat pump unit M master unit S slave unit For single unit this code is omitted Refrigerant code 3 R134a 4 R407C 5 R41
58. t pile up anything near the air inlet and outlet otherwise the air conditioner might stop working or be less effective e Most importantly external pumps must be able to communicate with the unit otherwise the plate heat exchanger might freeze up if the water supplied is insufficient 4 Safety Considerations Please read the following considerations carefully so that you can correctly use the air conditioner Pay special attention to the following safety considerations Keep this user manual at hand for future reference If the air conditioner is transferred to another user this user manual should also be rendered to the new user e lfanything abnormal takes place such as a roast smell please immediately cut off the power supply and contact the dealer for help e The unit should be installed by the dealer e Improper installation might incur water electric leakage or fire e Please contact the dealer for help if you need to remove or reinstall the unit e Turn on off the unit by using the controller e Do not turn on off the unit by plug unplug the power supply as the startup current might be too large and burn the socket causing short circuit or bodily injury e The power supply should be securely connected and the power cable well insulated e Wires that are loose or impaired might incur electric shock short circuit or fire 2012 Shenzhen McQuay 45 Do not put your fingers sticks or other unwanted things into the air
59. temperature sensor has Replace 21 ER37 Superheat of 2 is broken down and the wire too low The electronic expansion controller displays valve fails to provide Upgrade the modular program 37 proper control The LED indi Low pressure sensor of d Se E ER Replace the low pressure sensor ER38 Refrigerant leakage s andthe wire nal Insufficient refrigerant Add refrigerant controller displays SUIE TSTS 9 38 eer SE SR Replace the low pressure sensor 23 ER39 Refrigerant leakage and the wire in 2 ae f controller displays Insufficient refrigerant Add refrigerant 39 a edil ana IS Check the control module and ae OESTE 99 re plug the temperature sensor ndi Test whether the resistance of TH1 REEE T temporare 2 ESS sensor s sensor meets specication ER40 play sensor failure H requirements replace if not There is something wrong with the test circuit of the temperature sensor in the Replace the control module control module his sla c IS Check the control module and Ner Ue 99 re plug the temperature sensor Test whether the resistance of TH2 ER41 RS sensor failure P requirements replace if not There is something wrong with the test circuit of the temperature sensor in the Replace the control module control module e Bleed rd IS Check the control module and E TORTE 99 re plug the temperature sensor ar f Test whether the resistance of TH3 26 camera TH3 temperature eae sensor s sensor meets specification ER42 pay sensor failure P requ
60. ure and system cleaning 1 High density 200 500 ppm orrosion inhibitor 2 Low density 20 30 ppm corrosion inhibitor 3 pH control 4 Proper material 1 Chloridized hydroxybenzene 2 Other chemicals 3 Chlorine formed by hypochlorite and liquid chlorine No control is necessary 1 High density corrosion inhibitor 2 Proper material No control is necessary 2012 Shenzhen McQuay 44 10 Notice to Users 1 Rights and Obligations The Installation and in warranty service can only be performed by the service personnel of McQuay or by experienced technicians McQuay does not assume any liability for any property damage bodily injury or death due to operations that violate this rule 2 Checkand Acceptance While accepting the unit please check whether any part is damaged or missing during transportation If any part is damaged or missing please immediately inform the dealer by a written notice 3 Maintenance Considerations e Wash the water system periodically e When the temperature drops below 0 in winter proper antifreeze measures should be taken e Seta proper indoor temperature that makes everybody inside the room feel comfortable e The recommended temperature settings for cooling and heating are 26 C 28 and 18C 23C respectively e Keep doors and windows closed otherwise the air conditioner will be less effective e Windows should have a curtain or a shutter to avoid direct sunshine e DO no
61. ust meet the local sanitation regulations 9 2 Water Processing Method To ensure effective operation and durability cleaning washing and chemical processing are very important for water systems Different types of water circuits need to be cleaned in different ways W Close Re Circulation System Water systems of this type generally require no adjustment to subdue scale and require no chemical to suppress mud and alga This type of water system is recommended Closed recycle systems may need anti corrosion measures including the following for reference only a NaNO borate and inhibitors for organic materials b NaNOs borate and silicate c High density chromate solution and pH control d pH and sulfite control e Polyphosphate salt and silicate f Alkali phosphate and sulfite control Because it is hard to control water quality for closed recycle systems we recommend that the total density of copper pipe inhibitors such as NaNOs borax silicate and benzothiazole should be no less than 1400 ppm The inhibitor NaNO is soluble in glycol and can be used in northern areas or in the subsystem of solar power systems 2012 Shenzhen McQuay B Open Re circulation System 43 This type of water system is generally not recommended They are exposed to the atmosphere and are susceptible to scale corrosion mud and alga Therefore they might degrade the performance and reduce the service life of the unit B Once through S
62. y at partial workload W Easy Control Units can be controlled individually or together by an electronic controller The controller is strongly interference proof and can exert control from as far as 1000 meters away Failures are represented by error codes displayed on the controller to facilitate troubleshooting W Easy Installation The units are designed to best facilitate user installation The cooling system is made hermetic in the factory Customers do not need to connect any copper pipe or refill refrigerant The water system has an inlet connector which is to be connected to the terminal equipment Having installed the unit as instructed customers just need to check that water and pump pipes are clean before pumping water and powering on the unit W Defrosting The controller defrosts the unit automatically according to the operation time of the unit and the temperature of the heat exchanger B Security Measures The cooling system is protected against extreme pressures discharge pressure will not be too high nor will inhaling pressure be too low against extreme discharge temperature discharge temperature will not be too high against freezing during cooling operation when the water temperature is too low the plate heat exchanger will not freeze up or burst internally and against low temperature during cold winter time the water pipe and plate heat exchanger will not freeze up or burst internally This feature works only when the
63. ystem Generally once through systems are only used for cooling only air conditioners Water systems of this type use water from taps lakes rivers and wells Although the once through system exchanges heat with the closed water circuit it is not considered as an integral part of the water source heat pump system Once through systems may be troubled by either scale or corrosion This type of water system requires large amount of adjustment water Therefore you need to consider the scale coefficient the equipment used for cleaning work and necessary anti corrosion materials PAN Caution Water from lakes and rivers may cause problems such as mud and alga Comparison among closed recycle systems open recycle systems and once through systems EN Once through System Open Recycle System Closed Recycle System 1 Surface activator such as polyphosphate salt 2 Increased acidity 3 pH adjustment 4 Other considerations include surface temperature water emperature and system cleaning Scale control 1 Low density corrosion inhibitor 2 Anti CaCO2 plate 3 pH control 4 Proper material Corrosion control 1 Chloridized hydroxybenzene Mud and alga 2 Other chemicals control 3 Chlorine formed by hypochlorite and liquid chlorine 1 Discharge 2 Surface activator such as polyphosphate salt 3 Increased acidity 4 pH adjustment 5 Softening other considerations include surface temperature water emperat

Modular Air Cooled Chiller/Heat Pump MAC210 DM5/DS5/DRM5

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