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Service Manual SM-MDS_(ii)

ER63

Slave outdoor unit
communication failure



Master and slave communication wire broken



Master and slave communication wire loose



Master and slave communication wire A B reversed



Slave unit power not on



Master and slave jump wire not correct, still on update status



Last outdoor unit terminal resistance of communication wire not short-circuit



Master and slave PCB program not compatible.



Master and slave PCB abnormal

ER64

TH1 temperature
sensor failure



Outdoor discharge temperature sensor TH1 broken or loose

ER65

TH2 temperature
sensor failure



Outdoor 1# condenser inlet coil temperature sensor TH2 broken or loose

ER66

TH3 temperature
sensor failure



Outdoor 1# condenser midlet coil temperature sensor TH3 broken or loose

ER67

TH4 temperature
sensor failure



Outdoor 2# condenser inlet coil temperature sensor TH4 broken or loose

ER68

TH5 temperature
sensor failure



Outdoor 2# condenser midlet coil temperature sensor TH5 broken or loose

ER71

TH8 temperature
sensor failure



Outdoor ambient temperature sensor TH8 broken or loose

ER72

TH9 temperature
sensor failure



Outdoor outlet coil temperature sensor TH9 broken or loose

ER73

TH10 temperature
sensor failure



Outdoor sub-cool outlet temperature sensor TH10 broken or loose

ER74

TH11 temperature
sensor failure



Outdoor sub-cool suction temperature sensor TH11 broken or loose

ER75

TH12 temperature
sensor failure



Outdoor suction temperature sensor TH12 broken or loose

ER76

High pressure sensor
failure



High pressure sensor communication wire broken



Outdoor PCB HS port broken

ER77

Low pressure sensor
failure



Low pressure sensor connecting wire broken



Outdoor PCB LS port broken

EC78

All indoor units
communication failure



Indoor and outdoor communication wire broken



Indoor and outdoor communication wire loose



Indoor and outdoor communication wire A and B reversed



Communication wire too long, should less than 1000m



Outdoor PCB not power on



Indoor and outdoor jump wire not correct, still on update status



Last indoor unit terminal resistance of communication wire not short-circuit



Indoor and outdoor PCB program not compatible



Indoor and outdoor PCB abnormal

Содержание MDS030A

Страница 1: ...Service Manual SM MDS_ ii M Mu ul lt ti i D Di ig gi it ta al l S Sc cr ro ol ll l S Sy ys st te em m Engineered for flexibility and performance TM...

Страница 2: ......

Страница 3: ...ust satisfy him herself regarding the applicability of any article and seek professional evaluation of all materials McQuay disclaims any responsibility for actions based on this document McQuay is a...

Страница 4: ...it PCB 14 3 2 MDS Indoor Unit PCB 16 3 3 MDS System Wiring 18 3 3 1 Wiring connection between MDS outdoor to indoor units 18 3 3 2 Wiring connection between MDS outdoor units 20 3 3 3 Wiring connectio...

Страница 5: ...rror Code for MDS M PCB 70 6 6 Troubleshooting Flow Chart 73 7 0 Appendix 90 7 1 Compatibility Chart for Indoor and Outdoor PCB 90 7 2 Compatibility Chart for Wired Handset MC301 91 7 3 Pressure Senso...

Страница 6: ...ow chart for possible root cause to do necessary repair maintenance and troubleshooting task for the MDS air conditioner system This service manual is intended for and should only be used by qualified...

Страница 7: ...S 5MDS 050B R 1 R410A 5MDS 060B R 1 R410A 5MDS 070B R 1 R410A 5MDS 080B R 1 1 R410A 5MDS 100B R 1 1 R410A 5MDS 120B R 1 1 R410A 5MDS 140B R 1 2 R410A 5MDS 160B R 1 2 R410A 5MDS 180B R 1 2 R410A 5MDS...

Страница 8: ...ulate the refrigerant flow according to the total indoor capacity required 3 When the total indoor capacity exceeds the maximum capacity of Digital Scroll Compressor Fix Scroll Compressor will turn ON...

Страница 9: ...mum Indoor Quantity MDS 030A R 5 MDS 040A R 6 MDS 050A R 5MDS 050B R 8 MDS 060A R 5MDS 060B R 9 MDS 070A R 5MDS 070B R 11 MDS 080B R 5MDS 080B R 13 MDS 100B R 5MDS 100B R 16 MDS 120B R 5MDS 120B R 16...

Страница 10: ...valent length from first branch to furthest unit 25 30 40 25 30 65 Height Between further indoor and outdoor outdoor above 20 30 50 20 30 50 indoor above 20 30 40 20 30 40 Maximum height between indoo...

Страница 11: ...Service Manual SM MDS_ ii 5 Dimension of refnet model MDS Y5 A MDS Y6 A and MDS Y7 A Distributor MDS C1 Distributor MDS C2 and MDS C3 1...

Страница 12: ...EX 24 3SAP C MEX 22 3SAP C MCCD 010C 1 4 1 4 MCCD 015C 1 4 1 4 MCCD 020C 1 4 1 4 MCCD 025C 3 8 1 4 MEX 18 3SAP C MEX 22 2SAP C MCCD 028C 3 8 MEX 22 3SAP C MCCD 030C 3 8 3 8 MEX 24 3SAP C MEX 22 3SAP C...

Страница 13: ...ystem and Control General Circuit Diagram General outdoor circuit diagram for cooling mode General outdoor circuit diagram for heating mode Note For more detailed refrigerant circuit diagram please re...

Страница 14: ...between TH9 and TH10 is normally about 8 to 12 C cooling mode For example when the difference between TH9 and TH10 is very low EXV4 will increase its opening step to maintain the sub cool circuit Defr...

Страница 15: ...Scroll Compressor Compressor overload protection Fan motor overload protection Others For Fix Scroll Compressor Minimum 3 minutes of start up delay protection is available For Digital Scroll Compresso...

Страница 16: ...efers to different EXV opening size For example if the indoor unit requires more cooling the EXV steps will increase to allow more refrigerant to flow into the indoor Fan Speed Control The table above...

Страница 17: ...nstaller should take note Refer to the figures below after the installation of distributor the piping should directly connect to indoor unit and cannot be connected to other refnet or distributor This...

Страница 18: ...room temperature Tr by 0 5 C the heater will be turned ON Ts Tr 0 5 When the set temperature Ts is lower than room temperature Tr by 1 C the heater will be turned OFF Ts Tr 1 2 Heater Tr Ts 0 5 1 1 0...

Страница 19: ...e piping Stick the seal material to cover the inlet of the ball valve flange to avoid the dirt entry Change the hollow seal pad Fix the flange connector and hollow seal pad and fixed ball valve of gas...

Страница 20: ...PRESS 9 OD Outdoor ambient sensor 25 To LIVE 10 RTN Return air temperature sensor 26 TO NEUTRAL 11 C_BTM Compressor bottom sensor 27 PCB VERSION 12 INLET Inlet coil temperature sensor 28 7 Segment LED...

Страница 21: ...TH12 Return air temperature sensor 12 LO FAN TH11 SCC bypass sensor HI FAN TH10 After SCC sensor 4WV Four way valve TH9 Before SCC sensor 13 PWM Pulse Width Modulation 18 TH8 Outdoor ambient sensor TH...

Страница 22: ...coil temperature 5 Dipswitch 2 SW2 12 Apc Bpc Centralize Control 6 Dipswitch 3 SW3 13 Ain Bin Outdoor Communication 7 PCB Software Version 14 T_Room Room temperature 8 MC200 C 15 Display Board IR Rece...

Страница 23: ...emperature 17 Swing T_MID Midlet coil temperature 18 Pump T_OUT Outlet coil temperature 19 Fan Motor HI FAN MI FAN LO FAN 8 MC301 Wired Hanset Connector 20 LIVE 9 Display Board IR Receiver 21 NEUTRAL...

Страница 24: ...t not exceed 1000m 3 3 1 Wiring Connection Between MDS Outdoor to Indoor Units As the MDS system is a single outdoor multiple indoors system it is required to have communication wiring between the out...

Страница 25: ...PCB to terminal block Current models are having the label of Ain and Bin on the terminal block However older model has different terminal number as shown below Connect the wire accordingly Ain outdoo...

Страница 26: ...munication jumper is labeled with the name JP1 and the location is shown below Location of jumper JP1 on indoor PCB MC200 C left and MC201 C right 3 3 2 Wiring Connection Between MDS Outdoor Units Whe...

Страница 27: ...al Number for Bin 5MDS120 180BM BRM 30 31 5MDS240 250BM BRM 45 46 R410A Model Slave Unit Terminal Number for Apc Terminal Number for Bpc 5MDS140 160 180BS BRS 32 33 5MDS200 220 240 250BS BRS 47 48 Not...

Страница 28: ...ctivate the automatic air swing function Press again to stop the louver at the desired direction 6 Ionizer Function For WM G series only Press button to activate the negative ion function which will r...

Страница 29: ...Button 11 Timer Cancel 12 OFF Timer Setting 13 ON Timer Setting 14 Turbo Function Press for fast cooling Fan speed turn to maximum speed Press again to deactivate the function 15 Clock Time Setting P...

Страница 30: ...kling Press again to change mode as follows When the outdoor unit is OFF Heat pump COOL HEAT FAN DRY Cooling only COOL FAN DRY When the outdoor unit is Cooling COOL FAN DRY When the outdoor unit is He...

Страница 31: ...WEEK SET and TIMER SET will display on the left and bottom of LCD panel press or to select a day Sunday to Saturday press TIMER again the day is selected the timer s states of the selected day will di...

Страница 32: ...nel show _ _ press ENTER to confirm enter group setting 4 ON OFF Operation Press ON OFF key to RUN or STOP the unit operation For Group On Off press ON OFF key for 5s and the unit number is twinkling...

Страница 33: ...OFF When the unit is OFF it can only be set to TIMER ON the TIMER SET will display on LCD panel press to set hour and press to set minute press TIMER to finish the single timer setting B Week Timer Se...

Страница 34: ...ontroller to indoor units through the orange connector Apc and Bpc through daisy chain connection One end of the screen layer should be earthed to protect the signal transmission Kindly refer to the f...

Страница 35: ...connected from the gateway to serial port and a manual 4 2 Hardware Requirement The hardware requirements for Smart Commander are as follow The CPU main frequency is 800MHz or above The memory is 256...

Страница 36: ...d follow the instruction on the prompt up screen Once the software installation is completed the prompt up screen will disappear In order to confirm whether the software is already installed or not th...

Страница 37: ...ly For certain models the outdoor terminal will be labeled with numbers instead of Apc and Bpc The corresponding numbers for Apc and Bpc are as follow R22 Model Terminal Number for Apc Terminal Number...

Страница 38: ...USB converter cable can be use This converter cable can be obtained from any IT hardware outlet When user purchased the RS232 to USB converter cable it will come together with a CD which consist the d...

Страница 39: ...step 6 and set COM 1 as your port number If you are using the Serial port to USB converter cable please go through all the following steps The steps will be quite complicated Hence kindly read through...

Страница 40: ...unication port COM on each laptop will be different If the COM port is less than 10 jump to step 6 and continue setting up the Smart Commander If the COM port goes more than 10 kindly follow the next...

Страница 41: ...s finished initiated the user will need to set the COM port setting To do this please go to Function E and select Parameter Setting Step 8 A new window will prompt up for parameter setting To change t...

Страница 42: ...connect to the system Go to drop down menu Function E again and select Initiating to connect to the MDS system Once the software is connected to the system all available parameter of the system Indoor...

Страница 43: ...ircuit Monitor Window in Smart Commander If the MDS units are connected in a network user can observe all parameter of outdoor unit through the outdoor set address in the PCB Once the outdoor is selec...

Страница 44: ...TH Temperature sensor reading Unit C TH1 Compressor discharge TH2 Outdoor 1 condenser coil inlet TH3 Outdoor 1 condenser coil midlet TH4 Outdoor 2 condenser coil inlet TH5 Outdoor 2 condenser coil mi...

Страница 45: ...or Unit Control and Monitoring When using the Smart Commander the user can activate the indoors via the software This allows troubleshooting to be carried out easily without the needs to go to the ind...

Страница 46: ...or is connected to If there is no outdoor address set the default value will be 0 Indoor No The address set on the indoor This is based on the PCB setting Name The indoor model and capacity Version Th...

Страница 47: ...ious page of the graph Next page Proceed to next page of the graph End page Proceed to the last page or the graph Set Param A new window will prompt out allowing user to determine which parameter to p...

Страница 48: ...ambient is set at 6 C User is only allowed to change the suction temperature The allowable range is from 2 C to 15 C Default value is 6 C Defrost curve B point The outdoor ambient is set at 15 C User...

Страница 49: ...ich is the refrigerant temperature before sub cool circuit TscT1 TscT2 TscT3 is the Sub cool target temperature the system needs to achieve The actual sub cool temperature will be based on TH9 TH10 Ex...

Страница 50: ...C If indoor coil middle temperature is too low outdoor will increase capacity to achieve the set value Beside the Modify Outdoor Unit Parameter there is another button called Special Order Once the bu...

Страница 51: ...low These steps help to streamline the possible problem that may occur during commissioning The flow chart below provides a general guide line for commissioning MDS system This is useful whether for f...

Страница 52: ...After obtaining the design drawing and report we will need to check on the piping and wiring connection Although this should be done during installation it is better to check all items again before co...

Страница 53: ...ion into a report From the report itself the proposed additional amount of refrigerant required are stated in the report Additional charge required Manual calculation To use this method the user is re...

Страница 54: ...ch 1 SW1 1 2 3 4 5 6 ON 1 OFF 0 Reserved Auxiliary Heater 1 2 Water Pump S1 Dipswitch 1 SW1 is to determine the special function of the indoor unit There are 2 main special functions that can be speci...

Страница 55: ...20 1 0 1 1 0 0 44 0 1 0 1 0 1 21 1 0 1 1 0 1 45 0 1 0 1 1 0 22 1 0 1 1 1 0 46 0 1 0 1 1 1 23 1 0 1 1 1 1 47 While setting the indoor address there are a few rules need to follow The rules are as follo...

Страница 56: ...0 Ceiling Convertible 0 1 1 Wall Mounted 1 0 0 Ducted Blower Example 1 ON 0 OFF S3 1 S3 8 MWMD015G 1 ON 0 OFF S3 1 S3 8 MCKD020A C 1 ON 0 OFF S3 1 S3 8 MCCD050C 1 ON 0 OFF S3 1 S3 8 MCMD028E Dipswitch...

Страница 57: ...are as follow 1 Press the indoor PCB emergency ON OFF button for 5 seconds to go into setting mode When the unit are in setting mode all the LED of the indoor will be light up 2 Use the wireless hands...

Страница 58: ...dipswitch 1 J1 2 Set up dipswitch 2 J2 3 Set up indoor quantity K2 and K1 button Set up Dipswitch 1 J1 0 For outdoor unit which runs on MDOM PCB there are 2 set of dipswitches J1 and J2 Besides this t...

Страница 59: ...the same rules on the indoor setting apply here The rules are as follow a Each outdoor number must be unique The outdoor address cannot duplicate b The first outdoor address must be 0 Do not start the...

Страница 60: ...0755 and press K2 the PCB will enter to setting mode 8 The available setting to adjust are as follow a Indoor Quantity b Temperature to initiate defrost checking c Temperature to initiate defrost cycl...

Страница 61: ...ump 1 Cooling only S1 1 MODEL 0 MDS B Series 1 MDS A Series S1 2 MODEL 0 Heatpump 1 Cooling only S1 3 S1 4 S1 5 S1 6 S1 7 S1 8 Indoor Quantity S1 3 S1 4 S1 5 S1 6 S1 7 S1 8 Indoor Quantity 0 0 0 0 0 0...

Страница 62: ...The rules are as follow a Each outdoor number must be unique The outdoor address cannot duplicate b The first outdoor address must be 0 Do not start the first outdoor with address 1 c While setting th...

Страница 63: ...ailable it is advisable to use it to run the commissioning Connect the outdoor unit to the commissioning software accordingly refer to Section 4 4 and run it Go to drop down menu Function E and select...

Страница 64: ...eadings of each information will continuously being displayed on the 7 segment LED display from 0 to 9 For example if we need to check the ambient temperature reading number 1 wait for the display to...

Страница 65: ...the opening of the EXV box and ensure it is functioning normally Check is there any error code from the indoor unit 5 9 Monitor Outdoor Parameter After the commissioning personnel added in the additi...

Страница 66: ...ceiling concealed the error code will display on controller screen For outdoor unit the error code generated will display on the 7 segments display on outdoor PCB Each of these locations is indicated...

Страница 67: ...short circuit Indoor and outdoor PCB program not compatible Indoor and outdoor PCB abnormal Error Code 2 Description Possible causes Cool Heat Sleep Fan Time Dry OFF OFF BLINKING Indoor sensor error...

Страница 68: ...run abnormally when heating Refrigerant leakage or insufficient Outdoor PCB low pressure output port abnormal Low pressure sensor broken Error Code 7 Description Possible causes Cool Heat Sleep Fan T...

Страница 69: ...y heating indoor unit EXV not turn on properly refrigerant leakage or shortage outdoor ball valve not turns on Compressor overload protector shut and occurs 3 times too much current flow in the compre...

Страница 70: ...controller communication wire not connected or loose Wired controller broken Outdoor PCB broken 83 F7 Ambient temperature exceed running range Outdoor ambient temperature exceed running range 1 cooli...

Страница 71: ...r too dirty heating Indoor unit filter blocked by dirt heating Indoor EXV not on properly heating Refrigerant over charged Outdoor PCB high pressure output port abnormal Pressure sensor broken Pressur...

Страница 72: ...e sensor TH4 broken or loose 15 TH5 open short circuit slave unit 2 midlet coil Slave unit 2 midlet coil temperature sensor TH5 broken or loose 18 TH8 open short circuit slave unit ambient temperature...

Страница 73: ...dirty cooling Slave unit ball valve not open Indoor circulation air short circuit heating Indoor heat exchanger too dirty heating Indoor unit filter blocked by dirt heating Indoor EXV not switched on...

Страница 74: ...Indoor X and outdoor PCB program not compatible Indoor X and outdoor PCB abnormal E0 Discharge temperature sensor malfunction Outdoor discharge temperature sensor broken or loose 73 E1 Outdoor ambient...

Страница 75: ...n properly refrigerant leakage or shortage outdoor ball valve not open Compressor overload protector shut and occurs 3 times too much current flow in the compressor compressor overload protector prote...

Страница 76: ...compressor 1 overload Fixed compressor 1 operating current too high overload protector OL1 on ER50 Fixed compressor 2 overload Fixed compressor 2 operating current too high overload protector OL2 on...

Страница 77: ...hut and occurs 3 times too much current flow in the compressor compressor overload protector protecting value wrongly set 80 ER56 Discharge temperature is too high Outdoor motor broken cooling Outdoor...

Страница 78: ...H8 temperature sensor failure Outdoor ambient temperature sensor TH8 broken or loose ER72 TH9 temperature sensor failure Outdoor outlet coil temperature sensor TH9 broken or loose ER73 TH10 temperatur...

Страница 79: ...5 11 to 1C For MC301 E0 to E6 For MDOM PCB ER64 to ER75 For MDS M PCB Remark OD ID Spec PCB Outdoor Indoor Specification Control Module Control Board Is the sensor correctly connected Connect correctl...

Страница 80: ...Is the wire connection to pressure sensor broken Replace the wire and restart the system NO YES Replace PCB Turn off the unit Is the resistance of the pressure sensor normal Refer Appendix 7 3 NO Rep...

Страница 81: ...it Check the indoor pump Is it functioning normally YES Check the drain hose and pump for blockage Clean it and restart the system NO NO YES Replace the water level switch Check the water level switch...

Страница 82: ...on wire Is A B reversed YES Reverse the communication wire and restart the system Is communication wire too long Should not exceed 1000m Reduce the length of the communication wire and restart the sys...

Страница 83: ...MDS M PCB Is the overload protector current setting correct Refer wiring diagram Reset and restart the system YES NO Replace overload protector and restart the system Turn off the unit Is the refrige...

Страница 84: ...c YES Is the coil sensor and pressure sensor resistance characteristics normal Refer Appendix 7 3 7 5 Replace sensor YES Replace PCB NO YES NO Check on power supply and wiring connection Replace outdo...

Страница 85: ...YES NO Replace PCB Turn off the unit Is the communication wire broken or loose YES Replace the wire and restart the system NO Is the DIP switch setting on PCB correct NO Reset the setting and restart...

Страница 86: ...on coil and filter Connect correctly and operate again Sufficient airflow YES NO Is the coil sensor and pressure sensor resistance characteristics normal Refer Appendix 7 3 7 5 NO Replace sensor YES...

Страница 87: ...Measure compressor winding resistance Within spec YES NO YES Measure suction pressure Within spec Release or charge the unit with refrigerant according to specification YES NO Replace PCB NO Is the c...

Страница 88: ...r MC301 ER54 For MDS M PCB Examine the PCB for loose components Solder the loose component back and retest again NO Turn off the unit YES Replace PCB Turn on the unit Press the reset button Error stil...

Страница 89: ...wired controller Turn on the unit Is the error remains NO Restart the system and verify again YES Replace PCB Turn off the unit Is the version of controller compatible with the indoor PCB Refer Append...

Страница 90: ...for advice as condition is not suitable for the unit to operate NO YES Check the surrounding of units Any obstacle that blocks the air movement YES NO Replace PCB Turn off the unit Check the resistanc...

Страница 91: ...ii 85 Wired controller storage problem Error Code FA For MC301 Press the reset button on the wired controller Is the error still exists Restart the system and verify again YES NO Replace wired control...

Страница 92: ...Recharging with correct amount of refrigerant NO Measure suction pressure Within spec NO Is the sensors resistance characteristics normal Refer Appendix 7 3 7 5 NO Replace sensor YES YES YES Is the se...

Страница 93: ...arge Is it within specification NO Replace sensor and restart the system YES NO YES Find the root cause for communication error and solve it Restart the unit Restart the unit Recharge refrigerant acco...

Страница 94: ...sensor and pressure sensor correctly connected NO Replace an outdoor PCB and re program the PCB Turn off the unit Check the connector on outdoor PCB Refer Appendix 7 6 Is there any connection Add the...

Страница 95: ...ERSE For MDS M PCB Check whether the outdoor PCB is faulty If yes replace a new PCB YES Is the sensor and pressure sensor correctly connected NO Correct the dipswitch and restart the unit Turn off the...

Страница 96: ...ility Chart for Indoor and Outdoor PCB MDOM PCB Outdoor with MC200 C MC201 C PCB Indoor MDS M PCB Outdoor with MC200 C MC201 C PCB Indoor MDS M PCB R410A Outdoor with MC200 C MC201 C PCB Indoor Legend...

Страница 97: ...compressor discharge piping where the piping for master and slave merge 3 When replacing outdoor PCB V2 3 and below with V2 4 and above for R22 MDS B model outdoor capacity dipswitch setting may be d...

Страница 98: ...92 Service Manual SM MDS_ ii 7 3 Pressure Sensor Voltage and Resistance Value High pressure sensor 7...

Страница 99: ...Service Manual SM MDS_ ii 93 Low pressure sensor 7 4 Character Reference for 7 Segment LED 7...

Страница 100: ...94 Service Manual SM MDS_ ii 7 5 Temperature Sensor Resistance Value Remark Exclude discharge temperature sensor TH1 and ambient temperature sensor TH8 R25 C 10K 1 7...

Страница 101: ...Service Manual SM MDS_ ii 95 7 6 Hardware Configuration for 5MDS Outdoor Remark The marked wire should be connected only for R410A MDS model on outdoor MDS M PCB 7...

Страница 102: ...96 Service Manual SM MDS_ ii 7 7 R22 MDS A Series Cooling Cycle Reference 7...

Страница 103: ...Service Manual SM MDS_ ii 97 7...

Страница 104: ...98 Service Manual SM MDS_ ii 7 8 R22 MDS B Series Cooling Cycle Reference 7...

Страница 105: ...Service Manual SM MDS_ ii 99 7...

Страница 106: ...100 Service Manual SM MDS_ ii 7...

Страница 107: ...Service Manual SM MDS_ ii 101 7...

Страница 108: ...102 Service Manual SM MDS_ ii 7 9 R22 MDS A Series Heating Cycle Reference 7...

Страница 109: ...Service Manual SM MDS_ ii 103 7...

Страница 110: ...104 Service Manual SM MDS_ ii 7...

Страница 111: ...Service Manual SM MDS_ ii 105 7 10 R22 MDS B Series Heating Cycle Reference 7...

Страница 112: ...106 Service Manual SM MDS_ ii 7...

Страница 113: ...Service Manual SM MDS_ ii 107 7...

Страница 114: ...108 Service Manual SM MDS_ ii 7...

Страница 115: ...Service Manual SM MDS_ ii 109 7 11 R410A MDS B Series Cooling Cycle Reference 7...

Страница 116: ...110 Service Manual SM MDS_ ii 7...

Страница 117: ...Service Manual SM MDS_ ii 111 7...

Страница 118: ...112 Service Manual SM MDS_ ii 7...

Страница 119: ...Service Manual SM MDS_ ii 113 7...

Страница 120: ...114 Service Manual SM MDS_ ii 7...

Страница 121: ...Service Manual SM MDS_ ii 115 7...

Страница 122: ...116 Service Manual SM MDS_ ii 7 12 R410A MDS B Series Heating Cycle Reference 7...

Страница 123: ...Service Manual SM MDS_ ii 117 7...

Страница 124: ...118 Service Manual SM MDS_ ii 7...

Страница 125: ...Service Manual SM MDS_ ii 119 7...

Страница 126: ...120 Service Manual SM MDS_ ii 7...

Страница 127: ...Service Manual SM MDS_ ii 121 7...

Страница 128: ...122 Service Manual SM MDS_ ii 7...

Страница 129: ...Service Manual SM MDS_ ii 123 7 13 R22 MDS BHC Series Cooling Cycle Reference 7...

Страница 130: ...124 Service Manual SM MDS_ ii 7...

Страница 131: ...Service Manual SM MDS_ ii 125 7...

Страница 132: ...126 Service Manual SM MDS_ ii For Master Slave Combination MDS220 280BHC please refer to the base model for reference 7...

Страница 133: ...Service Manual SM MDS_ ii 127 7 14 Refrigerant Circuit Diagram MDS 30 40 50 60A MDS 70A 7...

Страница 134: ...128 Service Manual SM MDS_ ii MDS 30 40 50 60AR MDS 70AR 7...

Страница 135: ...Service Manual SM MDS_ ii 129 MDS 80 100 120B MDS 80 100 120BR 7...

Страница 136: ...130 Service Manual SM MDS_ ii MDS 150B MDS 150BR 7...

Страница 137: ...Service Manual SM MDS_ ii 131 MDS 180B MDS 180BR 7...

Страница 138: ...132 Service Manual SM MDS_ ii MDS 200 220 240B MDS 200 220 240BR 7...

Страница 139: ...Service Manual SM MDS_ ii 133 MDS 260B 7...

Страница 140: ...134 Service Manual SM MDS_ ii MDS 260BR 7...

Страница 141: ...Service Manual SM MDS_ ii 135 MDS 280 300 320B 7...

Страница 142: ...136 Service Manual SM MDS_ ii MDS 280 300 320BR 7...

Страница 143: ...Service Manual SM MDS_ ii 137 5MDS 50 60 70B 5MDS 50 60 70BR 7...

Страница 144: ...138 Service Manual SM MDS_ ii 5MDS 80 100 120B 5MDS 80 100 120BR 7...

Страница 145: ...Service Manual SM MDS_ ii 139 5MDS 140 160 180B 5MDS 140 160 180BR 7...

Страница 146: ...140 Service Manual SM MDS_ ii 5MDS 200 220 240B 5MDS 200 220 240BR 7...

Страница 147: ...Service Manual SM MDS_ ii 141 5MDS 260 280 300B 7...

Страница 148: ...142 Service Manual SM MDS_ ii 5MDS 260 280 300BR 7...

Страница 149: ...Service Manual SM MDS_ ii 143 5MDS 320 340 360B 7...

Страница 150: ...144 Service Manual SM MDS_ ii 5MDS 320 340 360BR 7...

Страница 151: ...Service Manual SM MDS_ ii 145 5MDS 380 400 420B 7...

Страница 152: ...146 Service Manual SM MDS_ ii 5MDS 380 400 420BR 7...

Страница 153: ...Service Manual SM MDS_ ii 147 5MDS 440 460 480 500B 7...

Страница 154: ...148 Service Manual SM MDS_ ii 5MDS 440 460 480 500BR 7...

Страница 155: ...Service Manual SM MDS_ ii 149 MDS 080 100 120BHC MDS 140BHC 7...

Страница 156: ...150 Service Manual SM MDS_ ii MDS 160 180BHC MDS 200BHC 7...

Страница 157: ...Service Manual SM MDS_ ii 151 MDS 220BHC 7...

Страница 158: ...152 Service Manual SM MDS_ ii MDS 240BHC 7...

Страница 159: ...Service Manual SM MDS_ ii 153 MDS 260BHC 7...

Страница 160: ...154 Service Manual SM MDS_ ii MDS 280BHC 7...

Страница 161: ...Kindly take note that indoor units produced from March 2012 onwards should comes with PCB version 2 7 Kindly refer to the table below which indicates the starting batch number of indoor unit producti...

Страница 162: ...3 Take note that the indoor unit will always be in standby condition there s power supply to the indoor PCB 4 When the key card is inserted the unit will not turn on directly unless Auto Restart has...

Страница 163: ...s and the unit will not start This device is located in the control box of the outdoor unit The following table shows the LED indicator light for phase protector under normal and fault conditions Desc...

Страница 164: ...158 Service Manual SM MDS_ ii 7...

Страница 165: ......

Страница 166: ...an ISO certified facility This document contains the most current product information as of this printing For the most up to date product information please go to www mcquayup com www mcquayup com 20...

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