McQuay M4AC080C Installation And Operation Manual Download Page 3

309 B/C – 03/03 A – page

 

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Introduction 

 

For years, McQuay international has earned a reputation for providing the industry with various highest quality and most 
technologically advanced air conditioning systems. Now McQuay is proud to introduce the new  generation mini air-
cooled chiller-M4AC C series. Inherited from the advantage of the earlier product experiences and introduced the most 
up-to-date technology, the new M4AC C series are designed with the always-in-mind concept  - to satisfy customers’ 
requirements of high efficiency, comfort, safety, intelligence to maximum extent. The unit can be flexibly coupled with 
multi fan coil units, easily operated with artificial intelligence. Additionally combined with indoor top level decoration, this 
bring you to enjoy the nobility coming from central air conditioning. 
Providing the features such as high efficiency, low noise, compactness, simple operation, safety running, easy 
installation and maintenance etc., the unit is widely equipped in plant, station, hotel, villa, office building, top-level 
apartment as well as process cooling application. 

 
 
 
 

Nomenclature 

 

      M  

    4         AC       030         C           R 

 
 
 
 

Brand Name          

          Air Cooled                      Generation 

(McQuay)               

          Chiller 

 
      

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

HFC 407C

 

Refrigerant 

Nominal Cooling Capacity 

—  

Cooling  

R   Heat Pump 

Summary of Contents for M4AC080C

Page 1: ...C Cooling capacity from 22 4 to 40 0 kW M4AC 080 150 CR Cooling capacity from 21 7 to 38 7 kW Heating capacity from 25 6 to 41 5 kW 50 Hz HFC 407 C refrigerant Product Installation and Operation Manu...

Page 2: ...t notice Installation and maintenance are to be performed only by qualified personnel who are familiar with local codes and regulations and experienced with this type of equipment McQuay is not respon...

Page 3: ...of high efficiency comfort safety intelligence to maximum extent The unit can be flexibly coupled with multi fan coil units easily operated with artificial intelligence Additionally combined with indo...

Page 4: ...site Water inlet and outlet are provided on both sides of the machine such that piping can be connected on either side of the machine Rust resistant PP R composite water pipe with good insulation prop...

Page 5: ...and evacuated before accurately charged with HFC 407C to ensure optimum operating requirement To ensure flawless continuous operation each refrigerant circuit is equipped with a carefully sized capil...

Page 6: ...ed personnel Indoor LCD controller After switching on power the indoor controller will display system time indoor temperature and unit status During normal operation it will display the unit return wa...

Page 7: ...380 3 50 Amp 7 3 2 8 6 2 Watt 3 900 2 4 800 2 Amp 40 48 REFRIGERANT kg 3 5 2 3 3 2 19 260 22 960 PLATE MATERIAL FINISH MODEL NOMINAL COOLING CAPACITY CASING MATERIAL kcal hr Electro galvanised Mild S...

Page 8: ...5 2 Watt 5 300 2 6 240 2 Amp 55 62 REFRIGERANT kg 6 3 2 5 7 2 34 390 Electro galvanised Mild Steel FINISH Polyester Power MODEL NOMINAL COOLING CAPACITY CASING MATERIAL 1 kcal hr 28 720 TOTAL UNIT DI...

Page 9: ...Hz 380 3 50 380 3 50 Amp 7 3 2 8 6 2 Amp 7 3 2 8 6 2 Watt 3 900 2 4 800 2 Watt 3 900 2 4 800 2 Amp 40 48 REFRIGERANT kg 4 0 2 4 6 2 kcal hr 18660 22180 FINISH MODEL NOMINAL COOLING CAPACITY NOMINAL H...

Page 10: ...COMPRESSOR Scroll Scroll V Ph Hz 380 3 50 380 3 50 Amp 10 3 2 11 5 2 Amp 10 3 2 11 5 2 Watt 5 300 2 6 240 2 Watt 5 300 2 6 240 2 Amp 55 62 REFRIGERANT kg 7 5 2 6 8 2 Electro galvanised Mild Steel Poly...

Page 11: ...27 7 9 3 26 7 9 6 25 3 10 1 23 6 10 8 8 29 8 9 0 28 2 9 7 27 2 10 1 25 8 10 6 24 0 11 2 9 30 4 9 7 28 8 10 5 27 8 10 8 26 4 11 3 24 8 12 0 M4AC100C 10 31 2 10 5 29 7 11 3 28 8 12 1 27 2 12 1 25 6 12...

Page 12: ...8 7 26 8 9 5 25 8 9 8 24 5 10 3 22 8 11 0 8 28 8 9 2 27 2 9 9 26 3 10 3 24 9 10 8 23 2 11 5 9 29 4 9 9 27 9 10 7 26 9 11 1 25 5 11 6 23 9 12 2 M4AC100CR 10 30 2 10 7 28 7 11 5 27 8 12 3 26 3 12 4 24 8...

Page 13: ...5 7 7 28 0 8 5 29 9 9 0 30 8 9 6 31 9 9 9 45 25 9 7 8 27 4 8 7 29 2 9 6 30 2 10 1 31 3 10 6 50 25 3 8 6 26 8 9 4 28 7 10 0 29 6 10 5 30 7 11 0 M4AC100CR 55 24 1 9 1 25 6 9 9 27 9 10 5 28 5 11 0 29 9 1...

Page 14: ...Drop And Flow Rate Water Flow Rate Water Pressure Drop MODEL L s m h kPa Bar M4AC080C 1 08 3 9 74 0 74 M4AC100C 1 31 4 7 82 0 82 M4AC120C 1 67 6 0 76 0 76 M4AC150C 2 0 7 2 74 0 74 Cooling 1 08 3 9 74...

Page 15: ...Chilled Water Out Cable Port IN F B 100 Rc 1 1 4 Chilled Water In Rc 1 1 4 UNIT mm Model Dimension M4AC080C R M4AC100C R M4AC120C R M4AC150C R A 1500 1500 1800 1800 B 900 900 1150 1150 C 1260 1260 126...

Page 16: ...HERMAL OVERLOAD RELAY AMPS MAC80C MODEL 10 5A 11 2A 11 2A 10 5A OPEN JP SETTINGS LEAVI N G W A T E R T E M P S E N S O R R E T U R N W A T E R T E M P S E N S O R ALARM INDICATOR AC DC SUPPLY NOTES Fi...

Page 17: ...TES Field Wiring Factory Wired CAUTION The setting shown in the diagram is factory set Don t change the JP settings and the value of parameters including thermal overload relays D E F R O S T S E N S...

Page 18: ...OMPRESSOR DESCRIPTION PHASE PROTECTOR DESCRIPTION FUSE WATER PUMP FAN MOTOR CONTACTOR COMP LP SWITCH COMP HP SWITCH WATER FLOW SWITCH JP SETTINGS OPEN Don t change the JP settings and the value of If...

Page 19: ...ODEL 14 4A JP SETTINGS 14 4A 3 4A OPEN is the auxiliary electric heater contactor field supply part If want to activate two way valve interlock function let JP6 open Don t change the JP settings and t...

Page 20: ...so that air can be drawn in and discharge out efficiently Ai r I ntake Air Intake A i r I n t a k e Ai r D i schar ge Ai r di schar ge b Install the unit in such a way that the hot air discharge canno...

Page 21: ...ble foundation with level surface must be sufficiently durable against the unit weight U ni t U ni t S uppor t er D r ai n Di t ch f The location must not be susceptible to dust or oil to avoid conden...

Page 22: ...Backing Angle After deciding the mounting location remove the skid base by unfastening the bolts Mounting When mounting please use foundation bolts or expansion bolts to fasten the unit with foundati...

Page 23: ...n and choking of the system Don t use the water pump equipped in unit to clean piping If using the pump to clean is required you can fill clean water in system at water in side meanwhile make the pump...

Page 24: ...le Q ty 5 Electrical Connection Of Auxiliary Electric Heater If auxiliary electric heater or auxiliary gas heater installation is required please do installation after thoroughly reading corresponding...

Page 25: ...d Always check the water level in the system for the target of protecting the moving components in the hydraulic kit from overheating excessive wearing and water freeze All the chilled water in the hy...

Page 26: ...mp overload Contact with the dealer EA Compressor 1 overload Contact with the dealer EC Compressor 1 high pressure cutout Contact with the dealer ED Compressor 1 low pressure cutout Contact with the d...

Page 27: ...g 7 H eat i ng C ap Tube 11 W at er Pum p 3 Accum ul at or R ef r i ger ant Fl ow D i r ect i on W hen C ool i ng 1 C om pr essor 9 R ecei ver LEG E N D 2 Four W ay Val ve 6 C ool i ng C ap Tube 10 BP...

Page 28: ...il mcquay mcquayitalia com Q T Y ITEM NAME FAN FAN GUARD TOP PANEL FRONT PANEL SUPPORT LEFT RIGHT COIL GUARD LEFT COIL ASSY SEPERATE PANEL ASSY FRONT PANEL ASSY WATER IN PIPE ASSY ELECTRICAL BOX SUPPO...

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