McQuay MWM 007G Manual
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McQuay MWM 007G Manual

Wall mounted split systems
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Wall Mounted Split Systems
Models: MWM 007G/GR
MWM 009G/GR
MWM 010G/GR
MWM 015G/GR
MWM 020G/GR
MWM 025G/GR
M5WM 007G/GR
M5WM 009G/GR
M5WM 010G/GR
M5WM 015G/GR
M5WM 020G/GR
M5WM 025G/GR
MWM - G - 2005

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Summary of Contents for McQuay MWM 007G

  • Page 1 MWM - G - 2005 Wall Mounted Split Systems Models: MWM 007G/GR M5WM 007G/GR MWM 009G/GR M5WM 009G/GR MWM 010G/GR M5WM 010G/GR MWM 015G/GR M5WM 015G/GR MWM 020G/GR M5WM 020G/GR MWM 025G/GR M5WM 025G/GR...

  • Page 2: Table Of Contents

    "McQuay" is a registered trademark of McQuay International. All rights reserved throughout the world. c 2005 McQuay International "Bulletin illustrations cover the general appearance of McQuay International products at the time of publication and we reserve the right to make changes in design and construction at any time without notice."...

  • Page 3: Features

    F F F F F ea ea tur tur es • Easy Installation The wall mounted fan coil unit is easily installed because of its compact size, slimness and light weight. Slim and short outdoor unit can be easily installed even in a narrow balcony and passageway and yet have a stable profile.
  • Page 4 • High Efficiency Heat Exchanger - The compact design of the 3-fold structure heat exchanger provides a large surface are for better and efficient heat exchange. The unique Hydrophilic slit fin has greatly improved the air flow and the contact surfaces with the air thus to boost the cooling capacity.

  • Page 5: Specifications

    Specif Specif ica Specif ica tions tions tions tions Specif Specif tions R22 Models (Cooling only) INDOOR UNIT MWM 009G MWM 010G MWM 015G MODEL OUTDOOR UNIT MLC 009C MLC 010C MLC 015C 2640 2780 3520 NOMINAL COOLING CAPACITY Btu/h 9000 9500 12000...
  • Page 6 R22 Models (Cooling only) INDOOR UNIT MWM 020G MWM 025G MODEL OUTDOOR UNIT MLC 020C MLC 025C 5569 7034 NOMINAL COOLING CAPACITY Btu/h 19000 24000 INPUT POWER W (50 Hz) 1745 2448 RUNNING CURRENT A (50Hz) 12.3 POWER SOURCE V/Ph/Hz 220-240/1/50 REFRIGERANT / CONTROL R22 / OUTDOOR CAP.
  • Page 7 R22 Models (Heatpump) INDOOR UNIT MWM 009GR MWM 010GR MWM 015GR MODEL OUTDOOR UNIT MLC 009CR MLC 010CR MLC 015CR 2640 2780 3520 NOMINAL COOLING CAPACITY 9000 Btu/h 9500 12000 2640 2780 3520 NOMINAL HEATING CAPACITY Btu/h 9000 9500 12000 INPUT POWER (COOLING) W (50 Hz) 1100...
  • Page 8 R22 Models (Heatpump) INDOOR UNIT MWM 020GR MWM 025GR MODEL OUTDOOR UNIT MLC 020CR MLC 025CR 5569 7034 NOMINAL COOLING CAPACITY Btu/h 19000 24000 5569 7327 NOMINAL HEATING CAPACITY Btu/h 19000 25000 INPUT POWER (COOLING) W (50 Hz) 1715 2412 INPUT POWER (HEATING) W (50 Hz) 1802...
  • Page 9 R407C Models (Cooling only) INDOOR UNIT MWM 007G MWM 010G MWM 015G MODEL OUTDOOR UNIT M4LC 007B M4LC 010B M4LC 015B 2169 2638 3224 NOMINAL COOLING CAPACITY Btu/h 7400 9000 11000 INPUT POWER W (50 Hz) 1438 RUNNING CURRENT A (50Hz) 3.64...
  • Page 10 R407C Models (Cooling only) INDOOR UNIT MWM 020G MWM 025G MODEL OUTDOOR UNIT M4LC 020B M4LC 025B 5363 6155 NOMINAL COOLING CAPACITY Btu/h 18300 21000 INPUT POWER 2295 2862 RUNNING CURRENT 13.35 10.69 POWER SOURCE V/Ph/Hz 220-240/1/50 REFRIGERANT / CONTROL R22 / OUTDOOR CAP.
  • Page 11 R407C Models (Heatpump) INDOOR UNIT MWM 007GR MWM 010GR MWM 015GR MODEL OUTDOOR UNIT M4LC 007BR M4LC 010BR M4LC 015BR 2227 2638 3224 NOMINAL COOLING CAPACITY Btu/h 7600 9000 11000 2169 2784 3663 NOMINAL HEATING CAPACITY Btu/h 7400 9500 12500 INPUT POWER (COOLING) W (50 Hz) 1441...
  • Page 12 R407C Models (Heatpump) INDOOR UNIT MWM 020GR MWM 025GR MODEL OUTDOOR UNIT M4LC 020BR M4LC 025BR 5129 6008 NOMINAL COOLING CAPACITY Btu/h 17500 20500 5569 7034 NOMINAL HEATING CAPACITY Btu/h 19000 24000 2185 2773 INPUT POWER (COOLING) W (50 Hz) INPUT POWER (HEATING) W (50 Hz) 2279...
  • Page 13 R410A Models (Cooling only) INDOOR UNIT M5WM 007G M5WM 009G M5WM 010G M5WM 015G MODEL OUTDOOR UNIT M5LC 007C M5LC 010C M5LC 010C M5LC 015C 2200 2640 2780 3520 NOMINAL COOLING CAPACITY Btu/h 7500 9000 9500 12000 INPUT POWER W (50 Hz) 1230 RUNNING CURRENT A (50Hz)
  • Page 14 R410A Models (Cooling only) INDOOR UNIT M5WM 020G M5WM 025G MODEL OUTDOOR UNIT M5LC 020C M5LC 025C 5569 7034 NOMINAL COOLING CAPACITY Btu/h 19000 24000 INPUT POWER W (50 Hz) 1865 2602 RUNNING CURRENT A (50Hz) 12.4 POWER SOURCE V/Ph/Hz 220-240/1/50 REFRIGERANT / CONTROL R410A / OUTDOOR CAP.TUBE...
  • Page 15 R410A Models (Heatpump) INDOOR UNIT M5WM 007GR M5WM 009GR M5WM 010GR M5WM 015GR MODEL OUTDOOR UNIT M5LC 007CR M5LC 010CR M5LC 010CR M5LC 015CR 2200 2640 2780 3520 NOMINAL COOLING CAPACITY Btu/h 7500 9000 9500 12000 2200 2640 2780 3520 NOMINAL HEATING CAPACITY Btu/h 7500...
  • Page 16 R410A Models (Heatpump) INDOOR UNIT M5WM 020GR M5WM 025GR MODEL OUTDOOR UNIT M5LC 020CR M5LC 025CR 5569 6741 NOMINAL COOLING CAPACITY Btu/h 19000 23000 5569 6741 NOMINAL HEATING CAPACITY Btu/h 19000 23000 1921 2615 INPUT POWER (COOLING) W (50 Hz) INPUT POWER (HEATING) W (50 Hz) 1882...

  • Page 17: Performance Table

    Performance Table Interpolation and Extrapolation method can be used to get the total capacity, TC and sensible capacity, SC at those temperatures which are not stated out in the table. Example: Model: MWM 010G / MLC 010C Indoor Condition: 23°C DB, 15°C WB Outdoor Condition: 37°C DB Solution: Overall...
  • Page 18 Details: Step: To obtain the Total capacity and Sensible capacity for (a) Indoor Condition: 24°C DB, 15°C WB Outdoor Condition: 35°C DB Outdoor DB ° C Indoor DB Indoor WB ° C ° C TC (kW) SC (kW) 2.624 1.888 2.688 1.790 Total capacity, TC...
  • Page 19 Step: To obtain the Total capacity and Sensible capacity for (a) Indoor Condition: 23°C DB, 15°C WB Outdoor Condition: 35°C DB Outdoor DB ° C Indoor DB Indoor WB ° C ° C TC (kW) SC (kW) 2.560 1.398 2.560 1.985 Total capacity, TC ⇒...
  • Page 20 Step: To obtain the Total capacity and Sensible capacity for (a) Indoor Condition: 23°C DB, 15°C WB Outdoor Condition: 37°C DB Outdoor DB ° C Indoor DB Indoor WB ° C ° C TC (kW) SC (kW) TC (kW) SC (kW) TC (kW) SC (kW) 2.560...
  • Page 21 R22 Models (Cooling Only) Model : MWM 009G / MLC 009C Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 3.164 2.057 2.935 1.847 2.706 1.636 2.477 1.426 2.248 1.215 1.973 0.963 3.206 1.890...
  • Page 22 R22 Models (Cooling Only) Model : MWM 015G / MLC 015C Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 3.852 2.383 3.608 2.178 3.365 1.973 3.121 1.769 2.877 1.564 2.584 1.318 4.062 2.259...
  • Page 23 R22 Models (Heatpump) Model : MWM 009GR / MLC 009CR COOLING MODE Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 3.164 2.057 2.935 1.847 2.706 1.636 2.477 1.426 2.248 1.215 1.973 0.963 3.206...
  • Page 24 R22 Models (Heatpump) Model : MWM 010GR / MLC 010CR COOLING MODE Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 3.170 1.962 2.967 1.774 2.763 1.586 2.560 1.398 2.356 1.211 2.112 0.985 3.207...
  • Page 25 R22 Models (Heatpump) Model : MWM 015GR / MLC 015CR COOLING MODE Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 3.852 2.383 3.608 2.178 3.365 1.973 3.121 1.769 2.877 1.564 2.584 1.318 4.062...
  • Page 26 R407C Models (Cooling Only) Model : MWM 007G / M4LC 007B Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 2.629 1.618 2.438 1.439 2.247 1.261 2.056 1.083 1.865 0.904 1.636 0.690...
  • Page 27 R407C Models (Cooling Only) Model : MWM 015G / M4LC 015B Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 3.531 2.093 3.308 1.905 3.084 1.717 2.861 1.529 2.637 1.342 2.369 1.116 3.723 1.979...
  • Page 28 R407C Models (Heatpump) Model : MWM 007GR / M4LC 007BR COOLING MODE Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 2.701 1.684 2.504 1.501 2.308 1.318 2.112 1.134 1.915 0.951 1.680 0.732 2.707...
  • Page 29 R407C Models (Heatpump) Model : MWM 010GR / M4LC 010BR COOLING MODE Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 3.004 1.807 2.811 1.629 2.618 1.451 2.425 1.273 2.232 1.095 2.000 0.882 3.038...
  • Page 30 R407C Models (Heatpump) Model : MWM 015GR / M4LC 015BR COOLING MODE Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 3.531 2.093 3.308 1.905 3.084 1.717 2.861 1.529 2.637 1.342 2.369 1.116 3.723...
  • Page 31 R410A Models (Cooling Only) Model : M5WM 007G / M5LC 007C Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 2.542 1.626 2.345 1.429 2.152 1.237 1.960 1.044 1.767 0.851 1.535 0.620 2.589 1.510...
  • Page 32 R410A Models (Cooling Only) Model : M5WM 010G / M5LC 010C Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 3.029 1.991 2.825 1.787 2.633 1.595 2.440 1.402 2.248 1.210 2.017 0.979 3.111 1.851...
  • Page 33 R410A Models (Heatpump) Model : M5WM 007GR / M5LC 007CR COOLING MODE Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 2.248 1.516 2.115 1.383 1.997 1.265 1.879 1.147 1.761 1.028 1.619 0.887 2.329...
  • Page 34 R410A Models (Heatpump) Model : M5WM 009GR / M5LC 010CR COOLING MODE Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 2.721 1.766 2.556 1.601 2.407 1.452 2.258 1.303 2.109 1.153 1.929 0.974 2.817...
  • Page 35 R410A Models (Heatpump) Model : M5WM 010GR / M5LC 010CR COOLING MODE Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 2.910 1.878 2.702 1.670 2.503 1.470 2.303 1.271 2.104 1.072 1.864 0.832 3.003...
  • Page 36 R410A Models (Heatpump) Model : M5WM 015GR / M5LC 015CR COOLING MODE Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 3.618 2.382 3.427 2.167 3.205 1.971 2.983 1.776 2.761 1.580 2.495 1.345 3.728...

  • Page 37: Noise Level

    Model (RPM) 125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz 8 kHz A (dBA) Criteria HIGH MWM 007G/GR MWM 009G/GR MEDIUM M5WM 007G/GR M5WM 009G/GR HIGH MWM 010G/GR MEDIUM M5WM 010G/GR HIGH MWM 015G/GR MEDIUM M5WM 015G/GR Microphone position: 1m in front and 0.8m below the vertical centre line of the unit.
  • Page 38 MWM 007 / 009 G/GR , M5WM 007 / 009 G/GR NC CURVES NC-45 NC-40 High Fan NC-35 Medium Fan NC-30 Low Fan NC-25 NC-20 1000 2000 4000 8000 Octave-band frequency (Hz) Measured in anechoic room at 1m in front and 0.8m below the vertical centre line of the unit MWM 010 G/GR , M5WM 010 G/GR NC CURVES NC-45...
  • Page 39 MWM 015 G/GR , M5WM 015 G/GR NC CURVES NC-45 NC-40 High Fan NC-35 Medium Fan NC-30 NC-25 NC-20 Low Fan 1000 2000 4000 8000 Octave-band frequency (Hz) Measured in anechoic room at 1m in front and 0.8m below the vertical centre line of the unit...

  • Page 40: Operating Range

    Operating Range Ensure the operating temperature is in allowable range. Cooling only Cooling HIGH AMBIENT UNIT Caution : The use of your air conditioner outside the range of working temperature and humidity can result in serious failure. LOW AMBIENT Indoor temp. (°CWB) Heatpump Heating Cooling...

  • Page 41: Refrigeration Cycle Diagram

    Refrigeration Cycle Diagram Cooling Only Models Model : MLC 009C / 010C / 015C M4LC 007B / 010B / 015B M5LC 007C / 010C / 015C...
  • Page 42 Cooling Only Models Model : MLC / M5LC 020C M4LC 020B Model : MLC / M5LC 025C M4LC 025B...
  • Page 43 Heatpump Models Model : MLC / M5LC 007CR Model : M4LC 007BR / 010BR MLC / M5LC 010CR...
  • Page 44 Model : M4LC 015BR Model : MLC / M5LC 015CR...
  • Page 45 Heatpump Models Model : MLC / M5LC 020CR M4LC 020BR Model : MLC / M5LC 025CR M4LC 025BR...

  • Page 46: Outlines And Dimension

    Outlines And Dimension Indoor Unit Model : MWM 007G / 007GR / 009G / 009GR M5WM 007G / 007GR / 009G / 009GR Note : Dimension in mm Outdoor Unit Model : MLC 009C / 009CR M5LC 007C / 007CR...
  • Page 47 Indoor Unit Model : MWM 010G / 010GR / 015G / 015GR M5WM 010G / 010GR / 015G / 015GR Note : Dimension in mm Outdoor Unit Model : MLC 010C / 010CR / 015C / 015CR M5LC 010C / 010CR / 015C / 015CR Note : Dimension in mm...
  • Page 48 Indoor Unit Model : MWM 020G / 020GR / 025G / 025GR M5WM 020G / 020GR / 025G / 025GR Note : Dimension in mm Outdoor Unit Model : MLC 020C / 020CR / 025C / 025CR M5LC 020C / 020CR / 025C / 025CR For M5LC / MLC 025 C/CR Only Note : Dimension in mm MODEL...
  • Page 49 Indoor Unit Model : MWM 007G / 007GR Note : Dimension in mm Outdoor Unit Model : M4LC 007B / 007BR Note : Dimension in mm...
  • Page 50 Indoor Unit Model : MWM 010G / 010GR / 015G / 015GR Note : Dimension in mm Outdoor Unit Model : M4LC 010B / 010BR / 015B / 015BR Note : Dimension in mm...
  • Page 51 Indoor Unit Model : MWM 020G / 020GR / 025G / 025GR Note : Dimension in mm Outdoor Unit Model : M4LC 020B / 020BR / 025B / 025BR Note : Dimension in mm...

  • Page 52: Wiring Diagrams

    Wiring Diagrams Cooling Only Models Outdoor Unit Model : MLC 009C / 010C, M5LC 007C / 010C / 015C Indoor Unit Model : MWM 009G / 010G, M5WM 007G / 009G / 010G / 015G (With Ionizer)
  • Page 53 Cooling Only Models Outdoor Unit Model : MLC 015C Indoor Unit Model : MWM 015G (With Ionizer)
  • Page 54 Cooling Only Models Outdoor Unit Model : MLC / M5LC 020C / 025C Indoor Unit Model : MWM / M5WM 020G / 025G (With Ionizer)
  • Page 55 Cooling Only Models Outdoor Unit Model : MLC 009C / 010C , M5LC 007C / 010C / 015C Indoor Unit Model : MWM 009G / 010G , M5WM 007G / 009G / 010G / 015G (With NTP)
  • Page 56 Cooling Only Models Outdoor Unit Model : MLC 015C Indoor Unit Model : MWM 015G (With NTP)
  • Page 57 Cooling Only Models Outdoor Unit Model : MLC / M5LC 020C / 025C Indoor Unit Model : MWM / M5WM 020G / 025G (With NTP)
  • Page 58 Cooling Only Models Outdoor Unit Model : M4LC 007B / 010B / 015B Indoor Unit Model : MWM 007G / 010G / 015G (With Ionizer)
  • Page 59 Cooling Only Models Outdoor Unit Model : M4LC 020B / 025B Indoor Unit Model : MWM / M5WM 020G / 025G (With Ionizer)
  • Page 60 Cooling Only Models Outdoor Unit Model : M4LC 007B / 010B / 015B Indoor Unit Model : MWM 007G / 010G / 015G (With NTP)
  • Page 61 Cooling Only Models Outdoor Unit Model : M4LC 020B / 025B Indoor Unit Model : MWM / M5WM 020G / 025G (With NTP)
  • Page 62 Cooling Only Models Outdoor Unit Oxygen Unit Model : MLC 010C , M5LC 010C / 015C...
  • Page 63 Heatpump Models Outdoor Unit Model : MLC 009CR / 010CR , M5LC 007CR / 010CR / 015CR Indoor Unit Model : MWM 009GR / 010GR , M5WM 007GR / 010GR / 015GR (With Ionizer)
  • Page 64 Heatpump Models Outdoor Unit Model : MLC 015CR Indoor Unit Model : MWM 015GR (With Ionizer)
  • Page 65 Heatpump Models Outdoor Unit Model : MLC / M5LC 020CR / 025CR Indoor Unit Model : MWM / M5WM 020GR / 025GR (With Ionizer)
  • Page 66 Heatpump Models Outdoor Unit Model : MLC 009CR / 010CR , M5LC 007CR / 010CR / 015CR Indoor Unit Model : MWM 009GR / 010GR , M5WM 007GR / 009GR / 010GR / 015GR (With NTP)
  • Page 67 Heatpump Models Outdoor Unit Model : MLC 015CR Indoor Unit Model : MWM 015GR (With NTP)
  • Page 68 Heatpump Models Outdoor Unit Model : MLC / M5LC 020CR / 025CR Indoor Unit Model : MWM / M5WM 020GR / 025GR (With NTP)
  • Page 69 Heatpump Models Outdoor Unit Model : M4LC 007BR / 010BR / 015BR Indoor Unit Model : MWM 007GR / 010GR / 015GR (With Ionizer)
  • Page 70 Heatpump Models Outdoor Unit Model : M4LC 020BR / 025BR Indoor Unit Model : MWM / M5WM 020G / 025G (With Ionizer)
  • Page 71 Heatpump Models Outdoor Unit Model : M4LC 007BR / 010BR / 015BR Indoor Unit Model : MWM 007GR / 010GR / 015GR (With NTP)
  • Page 72 Heatpump Models Outdoor Unit Model : M4LC 020BR / 025BR Indoor Unit Model : MWM / M5WM 020G / 025G (With NTP)

  • Page 73: Safety Precautions Before Installation

    Safety Precautions Before Installation BEFORE OPERATING, PLEASE READ THE FOLLOWING “SAFETY PRECAUTIONS” CAREFULLY. To prevent injury to the user or other people and properties damage, the following instructions must be followed. Incorrect operation due to ignoring of instruction will cause harm or damage, the seriousness is classified by the following indications.
  • Page 74 Symbol (with white background) denotes item that is PROHIBITED from doing. Symbol (with black background) denotes item that is COMPULSORY to be carried Caution Please confirm the following important points when installation • Grounding is necessary It may cause electrical shock if grounding is not perfect. •...

  • Page 75: Special Precautions For R407C

    Special Precautions For R407C SPECIAL PRECAUTIONS WHEN DEALING WITH REFRIGERANT R407C UNIT 1) WHAT IS NEW REFRIGERANT R407C? R407C is a zeotropic refrigerant mixture which has Zero Ozone Depletion Potential (ODP = 0) and thus conformed to the Montreal Protocol regulation. It requires Polyol-ester oil (POE) oil for its compressor’s lubricant.
  • Page 76 c) Ensure that the compressor is not expose to open air for more than the recommended time specified by its manufacturer (typically less than 10 minutes). Removed the seal plugs only when the compressor is about to be brazed. d) The system should be thoroughly vacuumed to 1.0 Pa ( 700mmHg) or lower. This vacuuming level is more stringent than R22 system so as to ensure no incompressible gas and moisture in the system.

  • Page 77: Special Precautions For R410A

    Special Precautions For R410A SPECIAL PRECAUTIONS WHEN DEALING WITH REFRIGERANT R410A UNIT 1) WHAT IS NEW REFRIGERANT R410A? R410A is a new HFC refrigerant which does not damage the ozone layer. The working pressure of this new refrigerant is 1.6 times higher than conventional refrigerant (R22), thus proper installation / servicing is essential. 2) COMPONENTS Mixture weight composition R32(50%) and R125(50%)
  • Page 78 d) When charging R410A, ensure that only liquid is being withdrawn from the cylinder or can. This is to ensure that only the original composition of R410A is being delivered into the system. The liquid composition can be different from the vapor composition. Invert cylinder Dip-pipe without dip-pipe...

  • Page 79: Installation

    Installation Installation Diagram...
  • Page 80 CAUTION: Before installing the unit, ensure that the power supply matches the power requirement of the air conditioner. 1) Selection Of Location And Space (A) Indoor Unit Install the fan coil (indoor) unit at a location with the following requirements Location is suitable for wiring, piping and drainage.
  • Page 81 (B) Outdoor Unit As condensing temperature rises, evaporating temperature rises and cooling capacity drops. In order to achieve maximum cooling capacity, the location selected for outdoor unit should fulfill the following requirements : Install the condensing (outdoor) unit in a way such that hot air distributed by the outdoor condensing unit cannot be drawn in again (as in the case of short circuit of hot discharge air).
  • Page 82 Condensed Water Disposal Of Outdoor Unit (Heatpump Unit Only) There are 2 holes on the base of outdoor unit for condensed water to flow out. Insert the drain elbow to one of the holes. To install the drain elbow, first insert one portion of the hook to the base (portion A), then pull the drain elbow in the direction shown by the arrow while inserting the other portion to the base.
  • Page 83 2) Drilling Holes And Mounting Installation Plate CAUTION: i) Please check the unit weight for each model. Always ensure that the wall is sufficiently strong to withstand the weight. If not, it is necessary to reinforce the wall with plate, beams or pillars. ii) The unit cannot be directly fixed onto the wall or the likes.
  • Page 84 • Fixing method:- WOODEN REINFORCED CONCRETE BUILDING FRAME WALL NUT ANCHOR BOLT ANCHOR 3) Indoor Unit Preparation • • The refrigerant piping can be routed to the unit in 5 Carefully bend the pipes to the required position to direction, by using the cut outs in the unit casing. align with the hole.
  • Page 85 6) Wiring Electrical Connection • Wiring regulation on wire diameters differ from country to country. Please refer to your LOCAL ELECTRICAL CODES for field wiring rules. Be sure that installation comply with such rules and regulations. General Precautions • Ensure that the rated voltage of the unit corresponds to the name plate before carrying out proper wiring according to the wiring diagram.
  • Page 86 • Remove burr with the burr remover. Hold the flaring end down to prevent burrs from dropping inside pipe. • The exact length of pipe protruding from the face of the flare die is determined by the flaring tool. The table shows the use of an imperial die and riged die.
  • Page 87 • When the piping length is more than 7.6m, please use the table below : Additional charge in gram. R22 & R407C MODELS MWM 007G / 009G / 010G / 015G MWM 020G MWM 025G MWM 007GR / 009GR / 010GR / 015GR...
  • Page 88 Diagram shows typical charging method. Note : R407C – Fix filter dryer R22 - Nil R410A - Nil CAUTION FOR R407C / R410A Avoid prolong exposure of an opened compressor, or the internal part of refrigerant piping to moist air. The POE oil in the compressor and piping can absorb moisture from air. 9) Final Checking Ensure that steps 1 to 8 are closely followed.

  • Page 89: Remote Controller Operation Guide

    Remote Controller Operation Guide G11 Remote Controller Temperature Setting On/Off Button Press Once to start the air To set the desired room conditioner temperature, press the button to increase or decrease the set Press again to stop the unit temperature. The temperature setting range is from 16 C to 30 C Personalised Setting...
  • Page 90 Indicator Lights IR signal receiver When there is infrared remote control operating signal, the signal receiver on indoor unit will made a (beep) for signal acceptance confirmation. IR Receiver LED indicator lights The table below shows the LED indicator light for air conditioner unit under normal operation and fault condition. The LED indicator lights are located at the middle of the air conditioner unit.

  • Page 91: Special Function

    Special Function Special Function Special Function Special Function Special Function (A) 3 Hot System (Heating Cycle) a) Hot start At the beginning of heating operation (cold start, after defrosting or thermostat resumes operation) the indoor fan operation is controlled in accordance with the temperature of the indoor heat exchanger to send warm air from the start.
  • Page 92 c) Hot spurt During cold start, the set temperature of controller is increased by 2 C to stabilize the room temperature quickly. (B) TURBO Mode TURBO function is available in COOL, HEAT and DRY modes only. When TURBO function is set, working temperature for cooling cycle is decreased by 2 C, working temperature for heating cycle is increased by 2 The indoor fan will force to HIGH fan.
  • Page 93 (E) Frost Prevention And Filter Check In order to prevent the freezing of indoor coil, the controller will operate as follow. 1°C (F) Auto Random Restart When power resumed, the unit will automatically restart and operate at the previous setting as before power failure occurred.

  • Page 94: Servicing And Maintenance

    Ser vicing vicing vicing And Maintenance vicing And Maintenance And Maintenance And Maintenance vicing And Maintenance Off the unit Unscrew the air discharge housing Flip open the air discharge housing Clean the blower Close the air discharge housing and tighten it with screw The unit is designed to give a long life operation with minimum maintenance required.
  • Page 95 Pre Start Up Maintenance (After Extended Shutdown) Inspect thoroughly and clean indoor and outdoor units. – Clean or replace air filters. – Clean condensate drain line. – Clean clogged indoor and outdoor coils. – Check fan imbalance before operation. – Tighten all wiring connections and panels.

  • Page 96: Troubleshooting

    T T T T T r r r r r oub oub leshooting leshooting leshooting leshooting leshooting By means of pressure readings : PRESSURE PROBABLE CAUSE Data Circuit High Side 1. Overcharged with refrigerant. Low Side 2. Non-condensable gases in refrigerant circuit (e.g. oil). 3.
  • Page 97 The most common causes of air conditioner failure to “start” are : a) Voltage not within +/ 10% of rated voltage. b) Power supply interrupted. c) Control settings improper d) Air Conditioner is disconnected from main power source. e) Fuse blown or circuit breaker off. II) Diagnosis Of Refrigerant Circuit /Application There might be some cases where the unit starts running but does not perform satisfactory, i.e.

  • Page 98: Parts List

    P P P P P ar ar ts List ts List ts List ts List ts List Indoor Unit Model: M5WM / MWM 007G / 007GR / 009G / 009GR / 010G / 010GR / 015G / 015GR...
  • Page 99 M5WM / MWM 007G / 009G / 010G / 015G No Descriptions Part No No Descriptions Part No Assy., Chassis Air Discharge Housing M5WM / MWM 007/009G A50124064147 M5WM / MWM 007/009G A50124062325 M5WM / MWM 010/015G M5WM / MWM 010/015G...
  • Page 100 Model: M5WM / MWM 020G / 020GR / 025G / 025GR...
  • Page 101 Model : M5WM / MWM 020G / 025G No Descriptions Part No No Descriptions Part No Assy., Chassis A50124068170 Assy., Control Box A50044071955 Fan, Motor Assy., Control Box Cover A50124071418 MWM 020G Assy., Front Cover A50124071424 A03034074205 MWM 025G Air Discharge Housing A50124071426 A03034074204 Cross Flow Fan...
  • Page 102 Outdoor Unit Model: MLC 009C No Descriptions Part No No Descriptions Part No Assy., Base Pan A50014057372 11 Right Panel A01014052509 Assy., Condenser Coil A50024059248 12 Assy. Control Panel A50044054806 Valve Bracket A01014051164 13 Assy., Front Panel A01014052512 Compressor A50049016211 14 Assy., Valve Cover A50124055172 Assy., Partition...
  • Page 103 Model: MLC 010C / 015C No Descriptions Part No No Descriptions Part No Assy., Base Pan A50014051158 11 Right Panel A01014051167 Assy., Condenser Coil A50024052499 12 Assy., Front Panel A01014051171 Valve Bracket A01014051164 13 Assy. Control Panel Compressor MLC 010C A50044058195 MLC 010C A04019019550...
  • Page 104 Model: MLC 009CR No Descriptions Part No No Descriptions Part No Assy., Base Pan A50014057372 10 Fan Blade A03019004131 Assy., Condenser Coil A50024064204 11 Left Panel A01014052510 Valve Bracket A01014051164 12 Right Panel A01014052509 Compressor 13 Assy. Control Panel A50044059032 MLC 009CR A50049016211 14 Assy., Front Panel...
  • Page 105 Model: MLC 010CR / 015CR No Descriptions Part No No Descriptions Part No Assy., Base Pan A50014051158 11 Left Panel A01014051166 Assy., Condenser Coil 12 Right Panel A01014051167 MLC 010CR A50024065601 13 Assy., Front Panel A01014051171 MLC 015CR A50024060071 14 Assy. Control Panel Valve Bracket A01014051164 MLC 010CR...
  • Page 106 Outdoor Unit Model: M5LC 007C No Descriptions Part No No Descriptions Part No Assy., Base Pan A50014057372 10 Left Panel A01014052510 Assy., Condenser Coil A50024064720 11 Right Panel A01014052509 Valve Bracket A01014051164 12 Assy. Control Panel A50044054806 Compressor A04019019592 13 Assy., Front Panel A01014052512 Assy., Partition A50064065275...
  • Page 107 Model: M5LC 010C / 015C No Descriptions Part No No Descriptions Part No Assy., Base Pan A50014051158 11 Right Panel A01014051167 Assy., Condenser Coil A50024064721 12 Assy., Front Panel A01014051171 Valve Bracket A01014051164 13 Assy. Control Panel Compressor M5LC 010C A50044058195 M5LC 010C A04019019590...
  • Page 108 Model: M5LC 007CR No. Descriptions Part No No. Descriptions Part No Assy., Base Pan A50014057372 12 Right Panel A01014052509 Assy., Condenser Coil A50024064720 13 Assy. Control Panel A50044059032 Valve Bracket A01014051164 14 Assy., Front Panel A01014052512 Compressor A04019019592 15 Assy., Valve Cover A50124055172 Assy., Partition A50064065275...
  • Page 109 Model: M5LC 010CR / 015CR No. Descriptions Part No No. Descriptions Part No Assy., Base Pan A50014051158 11 Left Panel A01014051166 Assy., Condenser Coil 12 Right Panel A01014051167 M5LC 010CR A50024064721 13 Assy., Front Panel A01014051171 M5LC 015CR A50024066517 14 Assy. Control Panel Valve Bracket A01014051164 M5LC 010CR...
  • Page 110 Model: M4LC 007B / 010B / 015B No Descriptions Part No No Descriptions Part No Back Grille A50014041357 10 Assy., Base Pan Top Panel A01010011408 M4LC 007B A50014036357 Assy., Condenser Coil M4LC 010 / 015B A50014013142 M4LC 007B A50024022675 11 Assy., Cap. Tube M4LC 010B A50024043386 M4LC 007B...
  • Page 111 Model: M4LC 020B / 025B No. Descriptions Part No No. Descriptions Part No Back Grille A50014043394 11 Assy., Cap. Tube Top Panel A01010011397 M4LC 020B A50024043567 Assy., Condenser Coil M4LC 025B A50024043576 M4LC 020B A50024043566 12 Assy., Partition A50014012920 M4LC 025B A50024043575 13 Assy., Terminal Box Panel A01014047406...
  • Page 112 Model: M4LC 007BR / 010BR / 015BR No Descriptions Part No No Descriptions Part No Back Grille A50014041357 11 Assy., Base Pan A50014013142 Top Panel A01010011408 12 Assy., Restrictor Valve Assy., Condenser Coil M4LC 010BR A50024043723 M4LC 007 / 010BR A50024032349 Assy., Cap.
  • Page 113 Model: M4LC 020BR / 025BR No. Descriptions Part No No. Descriptions Part No Back Grille A50014043394 12 Assy., Restrictor Valve Top Panel A01010011397 M4LC 020BR A50024042691 Assy., Condenser Coil M4LC 025BR A50024034401 M4LC 020BR A50024021529 13 Assy., Partition A50014012920 M4LC 025BR A50024033948 14 Assy., Terminal Box Panel A50044049929...
  • Page 114 Model: M5LC / MLC 020C Description Description Assy. Base Pan Compressor Assy. Outdoor Coil Front Panel (Left) Motor Bracket Service Panel Fan Motor Terminal Cover Panel Nut, Fan Motor Hex Lock Assy. Terminal Panel Fan Blade Top Panel Valve Bracket Front Grille Assy., Flare Valve 3 Ways 5/8"...
  • Page 115 Model: M5LC / MLC 025C Description Description Assy. Base Pan Front Panel (Left) Assy. Outdoor Coil Service Panel Motor Bracket Terminal Cover Panel Fan Motor Assy. Terminal Panel Nut, Fan Motor Hex Lock Top Panel Fan Blade Front Grille Valve Bracket Handle Assy., Flare Valve 3 Ways 5/8"...
  • Page 116 Model: M5LC / MLC 020CR Description Description Assy. Base Pan Front Panel (Left) Assy. Outdoor Coil Service Panel Motor Bracket Terminal Cover Panel Fan Motor Assy. Terminal Panel Nut, Fan Motor Hex Lock Top Panel Fan Blade Front Grille Valve Bracket Handle Assy., Flare Valve 3 Ways 5/8"...
  • Page 117 Model: M5LC / MLC 025CR Description Description Assy. Base Pan Front Panel (Left) Assy. Outdoor Coil Service Panel Motor Bracket Terminal Cover Panel Fan Motor Assy. Terminal Panel Nut, Fan Motor Hex Lock Top Panel Fan Blade Front Grille Valve Bracket Handle Assy., Flare Valve 3 Ways 5/8"...
  • Page 118 ©2005 McQuay International +1 (800) 432-1342 www.mcquay.com...

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