McQuay M4LC Especificações

Your Climate. We're There.TM: R407C – 2250AR407C Air Cooled Condensing UnitModels:M4LC 010B/BRM4LC 015B/BRM4LC 020B/BRM4LC 025B/BRM4LC 030C/

9Model : M4LC 040C/050CModel : M4LC 040CR/050CR

10Special precautions when dealing withSpecial precautions when dealing withrefrigerant R407C unitrefrigerant R407C unit1) What is new refrigerant R40

11c) Ensure that the compressor is not expose to open air for more than the recommended time specifiedby its manufacturer (typically less than 10 minu

12InstallationInstallationSharp edges and coil surface are potential injury hazard. Avoid from contact with them.(1) Installation of indoor unitFor in

13Installation clearance• Outdoor units must be installed such that there is no short circuit of the hot discharge air or obstruction tosmooth air flo

14(4) WiringElectrical connections• Wiring regulations on wire diameters differ from country to country. Please refer to your LOCALELECTRICAL CODES fo

15R407C must be charged as liquid. Usually R407C cylinder is equipped with a dip-pipe for liquidwithdrawal. If there is no dip-pipe, the cylinder shou

16Avoid prolong exposure of an opened compressor, or the internal part of refrigerant piping tomoist air. The POE oil in the compressor and piping can

17Servicing Servicing And MaintenanceAnd MaintenanceDisconnect from Main Supply before Servicing the air conditionerThe unit is designed to give a lon

18Pre-start up maintenance (after extended shutdown)- Inspect thoroughly and clean indoor and outdoor units.- Clean or replace air filters.- Clean con

1ContentsContentsIntroduction To Refrigerant R407C ...2Specificatio

19TroubleshootingTroubleshootingWhen any air-conditioner malfunction is noted, immediately switch off the power supply to the unit, andcontact the loc

20For cooling only models or heat pump models (cooling cycle)Diagnosis by flow chartThe following chart are efficient checking procedures for troubles

21Insufficient CoolingHigh Discharge PressureLow Discharge PressureLow DischargePressureMalfunction Of Fan CyclingSystemCondenserAir FlowLow Refrigera

22High Suction PressureLow Suction PressureNoisy OperationHigh SuctionPressureExcessive Fresh Air IntakeEvaporatorAir InletTemperatureInsufficient Duc

23No Cooling / HeatingUnit fail to startCheck power supply- voltage- phase- frequencyCheck settings of remote control boxCompressor fails to startChec

24The most common causes of air conditioner failure to “start" are:-a) Voltage not within ±10% of rated voltage.b) Power supply interrupted.c) Co

25Parts ListParts ListModel : M4LC 010B/015B/020B/025B1. BACK PANEL 16. ROTARY COMPRESSOR2. TOP PANEL 17. RUBBER GROMMET3. CONDENSER COIL ASSY.

26Model : M4LC 010BR/015BR/020BR/025BR1. BACK PANEL 16. ROTARY COMPRESSOR2. TOP PANEL 17. RUBBER GROMMET3. CONDENSER COIL ASSY. 18. COMPRESSOR N

27Model : M4LC 030C/040C/050C1. ASSY. BASE PAN 10. BACK RIGHT PANEL2. SUCTION VALVE 11. TOP PANEL3. LIQUID VALVE 12. CONDENSER COIL ASSY.4. PA

28Model : M4LC 030CR/040CR/050CR1. ASSY. BASE PAN 11. 4 WAY VALVE ASSY.2. SUCTION VALVE 12. BACK RIGHT PANEL3. LIQUID VALVE 13. DEFROST SENSOR A

2Introduction To Refrigerant R407CEnvironmental friendlyThe Montreal Protocol regulation calls for the phase-out of HCFCs by the year 2030 to prevent

DOP: 042000Americas - 13600 Industrial Park Boulevard, P.O. Box 1551, Minneapolis, MINI 55440 USA (612) 553-5330Asia - Jalan Pengapit 15/19, P.O. Box

3SpecificationsSpecificationsCooling OnlyHeat pump1) ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY THE MANUFACTURER WITHOUT PRIOR NOTICE.2) ALL UNITS

4Outlines Outlines And DimensionsAnd DimensionsModel : M4LC 010B/015B, 010BR/015BRAll dimensions in mmModel : M4LC 030/040/050C, M4LC 030/040/050CRAll

5MODEL : M4LC 030/040/050C, M4LC 030/040/050CRAll dimensions in mmSharp edges and coil surfaces may cause injury. Wear protectivegloves when handling

6Wiring DiagramsWiring DiagramsModel : M4LC 010B/015BModel : M4LC 010BR/015BR

7Model : M4LC 020B/025BModel : M4LC 020BR/025BR

8Model : M4LC 030CModel : M4LC 030CR