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McQuay M4AC040A, Installation And Maintenance Manual

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McQuay M4AC040A Installation And Maintenance Manual Download Page 36

Wiring Diagrams 

Model : MAC040 / 050 A, M4AC040 / 050A (Cooling Only)

Model : MAC058A , M4AC058A (Cooling Only)

SYMBOL DESCRIPTION

PCB

PRINTED CIRCUIT BOARD

FS

FLOW SWITCH

SW

SWITCH

AHTR

ANTIFREEZE HEATER WIRE

FM

FAN MOTOR

COMP

COMPRESSOR

EARTH

SYMBOL DESCRIPTION

PCB

PRINTED CIRCUIT BOARD

FS

FLOW SWITCH

SW

SWITCH

AHTR

ANTIFREEZE HEATER WIRE

FM

FAN MOTOR

COMP

COMPRESSOR

EARTH

35

Summary of Contents for M4AC040A

Page 1: ...MAC 2004 Air Cooled Mini Chiller Models MAC M4AC 040 058A AR MAC 075 125B BR M4AC 040 058AE ARE M4AC 075 125BE BRE...

Page 2: ...iliar with local codes and regulations and experienced with this type of equipment Caution Sharp edges and coil surfaces are a potential injury hazard Avoid contact with them Warning Moving machinery...

Page 3: ...operating efficiency and excellent performance At job site installation technician engineer only needs to connect the water piping Refrigerant pipe work is not necessary Capacity Versatility These mi...

Page 4: ...cuit is equipped with a carefully sized thermostatic expansion valve and both thermostatic expansion valve and capillary tube in the heat pump model Additional Safety Proctection The units are equippe...

Page 5: ...l d If glycol added for low temperature operation the entering water temperature 3qC to 9qC can be set by adjusting the DIP switch SW2 e For heating mode press SW1 button switch twice and then the red...

Page 6: ...decimal part During the normal operation the displayed value corresponds to the temperature being read by the probe B1 that is the evaporator water in let temperature Status of the unit The User is i...

Page 7: ...control parameters of the unit Cooling and Heating differentials water temperature condensation temperature pressure If you press SEL for more than 5 seconds the display shows the code of the first pa...

Page 8: ...o reset any alarm condition manual reset The relative LED light will turn off and the alarm relay will disenergize Forcing a DEFROSTING Cycle To force a defrosting cycle press the SEL and buttons for...

Page 9: ...eters Stores parameters in eeprom Stores parameters in eeprom Silences the buzzer Normal operating condition List of codes Displays values After 5 enables inhibits Cooling mode Displays the codes of t...

Page 10: ...WER SUPPLY V Ph Hz RATED RUNNING CURRENT Amp 1 09 1 09 1 8 RATED INPUT Watt 241 241 420 RATED OUTPUT Watt 145 145 400 MOTOR POLES 8 8 6 AIR VOLUME cmm cfm 127 4 500 COMPRESSOR TYPE Recip Recip Scroll...

Page 11: ...41 241 420 RATED OUTPUT Watt 145 145 400 MOTOR POLES 8 8 6 AIR VOLUME cmm cfm 127 4 500 COMPRESSOR TYPE Recip Recip Scroll POWER SUPPLY V Ph Hz RATED RUNNING CURRENT COOLING Amp 5 52 7 50 7 90 RATED R...

Page 12: ...C KIT TYPE RUNNING CURRENT Amp 1 5 1 5 1 5 WATER FLOW RATE GPM l s 17 78 1 122 22 22 1 402 27 75 1 751 INSTALLATION PIPE CONNECTION mm in HEAD m 27 23 18 MATERIAL CAPACITY VOLUME litres COMPRESSOR TYP...

Page 13: ...ATE GPM l s 17 78 1 122 22 22 1 402 27 75 1 751 INSTALLATION PIPE CONNECTION mm in HEAD m 27 23 18 MATERIAL CAPACITY VOLUME litres COMPRESSOR TYPE POWER SUPPLY V Ph Hz COOLING Amp 15 6 17 5 22 0 HEATI...

Page 14: ...WER SUPPLY V Ph Hz RATED RUNNING CURRENT Amp 1 09 1 09 2 8 RATED INPUT Watt 241 241 655 RATED OUTPUT Watt 145 145 400 MOTOR POLES 8 8 6 AIR VOLUME cmm cfm 136 4 800 COMPRESSOR TYPE POWER SUPPLY V Ph H...

Page 15: ...att 241 241 655 RATED OUTPUT Watt 145 145 400 MOTOR POLES 8 8 6 AIR VOLUME cmm cfm 136 4 800 COMPRESSOR TYPE POWER SUPPLY V Ph Hz RATED RUNNING CURRENT COOLING Amp 5 61 8 11 8 28 RATED RUNNING CURRENT...

Page 16: ...V Ph Hz RATED RUNNING CURRENT Amp 1 09 1 09 2 8 RATED INPUT Watt 241 241 655 RATED OUTPUT Watt 145 145 400 MOTOR POLES 8 8 6 AIR VOLUME L s cfm 2124 4500 COMPRESSOR TYPE POWER SUPPLY V Ph Hz RATED RU...

Page 17: ...DIAMETER INCHI 30 POWER SUPPLY v ph Hz 220 1 50 RATED RUNNING CURRENT Amp 3 4 3 4 3 4 RATED INPUT watt 900 900 900 RATED OUTPUT watt 555 555 555 MOTOR POLES 8 WATER LINE HYDRAULIC KIT TYPE Horizontal...

Page 18: ...9 1 09 2 8 RATED INPUT Watt 241 241 655 RATED OUTPUT Watt 145 145 400 MOTOR POLES 8 8 6 AIR VOLUME L s cfm 2124 4500 COMPRESSOR TYPE POWER SUPPLY V Ph Hz RATED RUNNING CURRENT Amp 5 85 8 42 8 12 RATED...

Page 19: ...RRENT Amp 3 4 3 4 3 4 RATED INPUT COOLIING HEATING watt 900 900 900 RATED OUTPUT COOLING HEATING watt 555 555 555 MOTOR POLES 8 WATER LINE HYDRAULIC KIT TYPE Horizontal Multistage End Suction PUMP MAX...

Page 20: ...2 7 68 4 33 5 11 73 3 75 10 57 3 95 9 82 4 12 9 26 4 27 8 33 4 35 7 95 4 41 7 45 4 51 6 13 21 3 79 12 26 3 99 11 27 4 14 10 50 4 30 9 30 4 42 8 78 4 50 8 08 4 63 7 14 18 3 84 13 84 4 01 12 63 4 20 11...

Page 21: ...1 03 3 70 10 64 3 92 10 03 4 11 9 23 4 23 8 37 4 36 8 06 4 40 8 00 4 52 6 12 73 3 77 12 22 3 97 11 42 4 15 10 50 4 31 9 34 4 44 8 90 4 47 8 58 4 69 7 14 28 3 85 13 73 4 02 12 58 4 19 11 72 4 34 10 34...

Page 22: ...52 3 13 8 27 3 45 9 25 3 69 9 64 3 93 10 54 4 44 35 8 54 2 96 9 12 3 04 10 39 3 22 12 73 3 51 14 70 3 72 16 70 3 93 18 88 4 15 19 84 4 35 40 7 62 3 08 8 13 3 17 9 18 3 43 11 40 3 67 13 61 3 89 15 52 4...

Page 23: ...29 33 7 87 28 89 8 26 26 81 9 32 25 82 9 98 23 83 11 30 6 33 31 6 88 30 88 8 23 29 80 8 83 29 09 9 16 27 03 10 01 26 22 10 59 24 60 11 57 7 35 46 7 85 31 99 9 09 30 45 9 64 29 30 10 06 27 37 10 76 26...

Page 24: ...6 80 27 49 7 40 27 07 8 25 25 44 9 14 24 92 9 76 23 88 11 00 6 31 22 6 00 29 06 7 60 28 10 8 31 27 30 9 02 25 92 10 02 25 23 10 47 24 17 11 37 7 33 96 6 87 30 47 8 51 28 92 9 24 27 54 10 04 26 56 11...

Page 25: ...26 73 9 46 27 74 9 90 29 36 10 60 35 17 55 7 08 23 86 7 64 27 01 7 92 28 75 8 02 31 04 8 37 31 99 8 78 33 03 9 21 34 69 9 90 40 16 79 7 58 22 49 7 98 25 33 8 21 27 91 8 45 30 01 8 95 31 12 9 23 32 07...

Page 26: ...9 53 4 41 8 98 4 57 8 08 4 65 7 71 4 72 7 23 4 83 6 12 81 4 06 11 89 4 27 10 93 4 43 10 19 4 60 9 02 4 73 8 52 4 82 7 84 4 95 7 13 75 4 11 13 42 4 29 12 25 4 49 11 37 4 64 9 92 4 89 9 35 5 00 8 56 5...

Page 27: ...3 96 10 32 4 19 9 73 4 40 8 95 4 53 8 12 4 67 7 82 4 71 7 76 4 84 6 12 35 4 03 11 85 4 25 11 08 4 44 10 19 4 61 9 06 4 75 8 63 4 78 8 32 5 02 7 13 85 4 12 13 32 4 30 12 20 4 48 11 37 4 64 10 03 4 91 9...

Page 28: ...35 8 02 3 69 8 97 3 95 9 35 4 21 10 22 4 75 35 8 28 3 17 8 85 3 25 10 08 3 45 12 35 3 76 14 26 3 98 16 20 4 21 18 31 4 44 19 24 4 65 40 7 39 3 30 7 89 3 39 8 90 3 67 11 06 3 93 13 20 4 16 15 05 4 40 1...

Page 29: ...8 84 26 01 9 97 25 05 10 68 23 12 12 09 6 32 31 7 36 29 95 8 81 28 91 9 45 28 22 9 80 26 22 10 71 25 43 11 33 23 86 12 38 7 34 40 8 40 31 03 9 73 29 54 10 31 28 42 10 76 26 55 11 51 25 81 11 80 24 34...

Page 30: ...92 26 26 8 83 24 68 9 78 24 17 10 44 23 16 11 77 6 30 28 6 42 28 19 8 13 27 26 8 89 26 48 9 65 25 14 10 72 24 47 11 20 23 25 12 17 7 32 94 7 35 29 56 9 11 28 05 9 89 26 71 10 74 25 76 11 81 24 74 12 3...

Page 31: ...3 10 12 26 91 10 59 28 48 11 34 35 17 02 7 58 23 14 8 17 26 20 8 47 27 89 8 58 30 11 8 96 31 03 9 39 32 04 9 85 33 65 10 59 40 16 29 8 11 21 82 8 54 24 57 8 78 27 07 9 04 29 11 9 58 30 19 9 88 31 11 1...

Page 32: ...Pressure drop Hydraulic lift Flowrate Pressure drop Hydraulic lift Flowrate Pressure drop Hydraulic lift m3 hr kPa kPa m3 hr kPa kPa m3 hr kPa kPa 2 05 10 281 2 77 6 270 3 49 12 248 3 17 22 249 3 67 1...

Page 33: ...Outlines and Dimensions Model MAC040 050 058A AR M4AC040 050 058A AR Bottom Compartment 32...

Page 34: ...Model MAC075 100 125B BR 33...

Page 35: ...Top Compartment Bottom Compartment 34...

Page 36: ...Cooling Only SYMBOL DESCRIPTION PCB PRINTED CIRCUIT BOARD FS FLOW SWITCH SW SWITCH AHTR ANTIFREEZE HEATER WIRE FM FAN MOTOR COMP COMPRESSOR EARTH SYMBOL DESCRIPTION PCB PRINTED CIRCUIT BOARD FS FLOW...

Page 37: ...Model MAC075 100 125B Cooling Only NOTE FOR MAC100B 125B ONLY SYMBOL DESCRIPTION COMP COMPRESSOR OF OUTDOOR FAN PCB PRINTED CIRCUIT BOARD COMP O L COMPRESSOR OVERLOAD PROTECTOR OF O L OUTDOOR FAN OVE...

Page 38: ...TION LP LOW PRESSURE SWITCH PROTECTION FS FLOW SWITCH SW SWITCH AHTR ANTIFREEZE HEATER WIRE Model MAC075 100 125B Cooling Only From July 2001 Production onwards NOTE FOR MAC00B 125B ONLY SYMBOL DESCRI...

Page 39: ...RCUIT BOARD COMP O L COMPRESSOR OVERLOAD PROTECTOR OF O L OUTDOOR FAN OVERLOAD PROTECTOR PUMP O L PUMP OVERLOAD PROTECTOR HP HIGH PRESSURE SWITCH PROTECTION LP LOW PRESSURE SWITCH PROTECTION FS FLOW S...

Page 40: ...TER LEAVING WATER ANTIFREEZE SENSOR C TEMP COIL TEMPERATURE SENSOR DEFROST SENSOR AL ALARM Model M4AC040 050 058ARE SYMBOL DESCRIPTION CAREL CTRL CAREL CONTROLLER F S FLOW SWITCH S W SWITCH AHTR ANTIF...

Page 41: ...TEMPERATURE SENSOR AL ALARM NOTE FOR MAC125BE ONLY Model M4AC075 100 125BRE SYMBOL DESCRIPTION SYMBOL DESCRIPTION COMP COMPRESSOR S W SWITCH OF OUTDOOR FAN AHTR ANTIFREEZE HEATER WIRE CAREL CTRL CARE...

Page 42: ...system too long to moist air 4 Check list before installation servicing x Tubing Refrigerant R407C is more easily affected by dust of moisture compared with R22 make sure to temporarily cover the end...

Page 43: ...R32 R125 R134 Composition of R407C in vapour phase is different from liquid phase f Normally the R407C cylinder or can is being equipped with a dip pipe for liquid withdrawal However if the dip pipe i...

Page 44: ...ng requirements a Install the chiller in such a way that the hot air discharge cannot be drawn in again b Ensure that there is no obstruction to air flow into or out of the unit Remove obstacles which...

Page 45: ...The water connection pipes are 1 BSPT female or 1 DIN female for both water inlet and water outlet The piping network should be designed with as few bends as possible and with as few variations in ele...

Page 46: ...tenance see clearance shown in figure below Model A B C MAC040 058A MAC040 058AR 950mm 900mm 900mm Remarks Minimum vertical clearance required above the unit is side clearance A 950mm should be double...

Page 47: ...ning of air intake through the coil surface only These can be done monthly or quarterly depending on the surrounding where the units are installed When the surrounding is very oily or dusty then the c...

Page 48: ...ault has been corrected Check tightness and soundness of all electrical connections x Repair or replace x Determine the type of safety shut down and correct the default before the unit is restarted x...

Page 49: ...system x Interchange power input phase 4 PCB display HP x Discharge pressure too high x Overcharge x Coil dirty x Condenser fan does not work x Expansion valve stuck in open position x Reset the press...

Page 50: ...A M4AC040 058AE 1 COMPRESSOR 8 FLOW SWITH 2 HEAT EXCHANGER CONDENSER 9 WATER PUMP 3 MOTOR FAN 10 WATER STORAGE TANK 4 THREE WAY VALVES WITH FLARE JOINT 11 AUTO AIR VENT 5 FLARE JOINT 12 DRAIN VALVE 6...

Page 51: ...9 BRAZED PLATE HEAT EXCHANGER 2 HEAT EXCHANGER CONDENSER 10 FLOW SWITCH 3 MOTOR FAN 11 WATER PUMP 4 THERMOSTATIC EXPANSION VALVE 12 WATER STORAGE TANK 5 CAPILLIARY TUBE 13 AUTO AIR VENT 6 THREE WAY V...

Page 52: ...1 SCROLL COMPRESSOR 8 CHILLED WATER OUT 2 OUTDOOR HEAT EXCHANGER 9 CHILLED WATER IN 3 FAN MOTOR 10 PUMP 4 FILTER DRIER 11 WATER STORAGE TANK 5 SIGHTGLASS 12 EXPANSION TANK 6 THERMOSTATIC EXPANSION VAL...

Page 53: ...UCTION ACCUMULATOR 2 4 WAY VALVE 10 BPHE 3 HEAT EXCHANGER 11 CHILLER WATER OUT 4 FAN MOTOR 12 CHILLER WATER IN 5 FILTER DRIER 13 PUMP 6 CHECK VALVE 14 WATER STORAGE TANK 7 CAP TUBE 15 EXPANSION TANK 8...

Page 54: ...Refrigerant Circuit Diagram Model M4AC075BRE 100BRE 125BRE 53...

Page 55: ...Top Compartment 1 BASE PAN ASSY 8 FAN BLADE 2 ACCESS SERVICE PANEL 9 FRONT PANEL ASSY 3 CONDENSER COIL ASSY 10 SIDE PANEL LEFT 4 COMPRESSOR 11 TERMINAL BOX ASSY 5 PARTITION PANEL 12 BACK PANEL 6 VALV...

Page 56: ...8 WATER STORAGE TANK 2 BPHE BRACKET 9 SIDE PANEL RIGHT 3 BPHE CLAMP 10 SIDE PANEL LEFT 4 BRAZED PLATE HEAT EXCHANGER 11 FRONT PANEL 5 WATER PUMP 12 REAR PANEL 6 TERMINAL BOX ASSY 13 TOP PANEL 7 TERMIN...

Page 57: ...5 FAN MOTOR 4 ASSY BPHE 16 BRACKET FAN MOTOR 6 CLAMP TUBE 17 FAN BLADE 7 ASSY MAIN STRUCTURE FRONT RIGHT 18 FAN GUARD 8 ASSY MAIN STRUCTURE FRONT LEFT 19 ASSY CONTROL BOX 9 ASSY MAIN COIL RIGHT 20 ASS...

Page 58: ...ASSY PANEL SIDE LEFT H 2 ASSY WATER STORAGE TANK 7 PANEL FRONT SIDE H 3 ASSY SUPPORT PILAR H 8 PANEL REAR H 4 ASSY MAIN STRUCT FRONT RIGHT 9 PANEL TOP H 5 ASSY STRUCTURE REAR RIGHT H 10 ASSY SUPPORT...

Page 59: ...2004 McQuay International 1 800 432 1342 www mcquay com ISO 9002 REGISTERED...

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