McQuay M5MSY20BR Manual
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McQuay M5MSY20BR Manual

Inverter-y multi split
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Inverter-Y Multi Split
Models: M5MSY20BR
M5MSY25BR
M5MSY30BR
Catalog
M5MSY - 2010

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Summary of Contents for McQuay M5MSY20BR

  • Page 1 Catalog M5MSY - 2010 Inverter-Y Multi Split Models: M5MSY20BR M5MSY25BR M5MSY30BR...

  • Page 3: Table Of Contents

    © 2010 McQuay International. All rights reserved throughout the world. Bulletin illustrations cover the general appearance of McQuay International products at the time of publication. We reserve the right to change design and construction specifi cations at any time without notice.

  • Page 4: Nomenclature

    Nomenclature M5MSY-2010 Nomenclature Indoor Unit Brand : McQuay Refrigerant : R410A Model Name : Wall Mounted Inverter System Type : Y series Capacity Index : 10,000 Btu/h : 15,000 Btu/h : 20,000 Btu/h : 25,000 Btu/h Chassis : J Series Model Type “...
  • Page 5 M5MSY-2010 Nomenclature Indoor Unit Brand : McQuay Refrigerant : R410A Model Name : Ceiling Cassette : Ceiling Concealed : Ceiling Mounted Inverter System Type : Y series Capacity Index : 10,000 Btu/h : 15,000 Btu/h : 20,000 Btu/h : 25,000 Btu/h...

  • Page 6: Outdoor Unit

    Nomenclature M5MSY-2010 Outdoor Unit Brand : McQuay Refrigerant : R410A Model Name : Multi Split Condensing Unit Inverter System Type : Y series Capacity Index : 20,000 Btu/h : 25,000 Btu/h : 30,000 Btu/h Chassis : B Series Model Type “...

  • Page 7: Product Line-Up

    M5MSY-2010 Product Line-Up Product Line-Up Indoor Unit M5WMY-J Series Classifi cation M5WMY 10JR ACLTC 15JR ACLTC 20JR ACLTA 25JR ACLTA...
  • Page 8 Product Line-Up M5MSY-2010 Indoor Unit M5CKY-C Series Classifi cation M5CKY 10CR ACOA 15CR ACOA 20CR ACOA PLCKYCR NGS01...
  • Page 9 M5MSY-2010 Product Line-Up Indoor Unit M5CKY-E Series Classifi cation M5CKY 20ER ACOA 25ER ACOA PLCKYER NGS01...
  • Page 10 Product Line-Up M5MSY-2010 Indoor Unit M5CCY-C Series Classifi cation M5CCY 10CR ACPA 15CR ACPA 20CR ACPA 25CR ACPA...
  • Page 11 M5MSY-2010 Product Line-Up Indoor Unit M5CMY-E Series Classifi cation M5CMY 15ER ACAA 20ER ACAA 25ER ACAA...
  • Page 12 Product Line-Up M5MSY-2010 Outdoor Unit M5MSY-BR Classifi cation M5MSY 20BR ACDOA 25BR ACDOA 30BR ACDOA...

  • Page 13: Features

    M5MSY-2010 Features Features Self Diagnosis The microprocessor provides the possibility to detect and diagnose any fault or malfunction that occurs in the system. The error will be refl ected by the blinking of the LED lights. Advance Technology Incorporating fuzzy logic control enables greater fl exibility in system control handling to achieve •...

  • Page 14: Application Information

    Application Information M5MSY-2010 Application Information Operating Range Ensure the operating temperature is in allowable range. Heatpump Heating Cooling Standard point Indoor temp. (°CDB) Indoor temp. (°CWB) Caution : The use of your air conditioner outside the range of working temperature and humidity can result in serious failure...

  • Page 15: Refrigerant Circuit Diagram

    M5MSY-2010 Application Information Refrigerant Circuit Diagram Model: M5MSY20BR...
  • Page 16 Application Information M5MSY-2010 Refrigerant Circuit Diagram Model: M5MSY25BR M5MSY30BR...

  • Page 17: Controller

    M5MSY-2010 Application Information Controller GS01 TURBO QUIET SLEEP MODE TIMER CANCEL CLOCK CANCEL...
  • Page 18 Application Information M5MSY-2010 Operation Guide Transmission source OFF timer setting • The source where the signal will be transmitted. • Press the TIMER OFF button will activate the off timer function. Signal transmission indication • Set the desired off time by pressing the TIMER OFF button •...
  • Page 19 M5MSY-2010 Application Information Controller Netware 3C ON/OFF Button ON TIMER Button • Starting Operation: • Enable/disable the Event 1, 2 and 3 ON TIMER setting When the unit is turned off, press the ON/OFF button. mode The operation LED lights and the unit is turned on. OFF TIMER Button •...

  • Page 20: Installation Guideline

    Application Information M5MSY-2010 Installation Guideline Safety Precautions WARNING CAUTION Please take note of the following important points • Installation and maintenance should be performed by qualifi ed when installing. persons who are familiar with local code and regulation, and • Do not install the unit where leakage of ammable experienced with this type of appliance.
  • Page 21 M5MSY-2010 Application Information Installation Diagram Cut thermal insulation pipe to an appropriate Wall Mounted 30mm or more from ceiling Caulk pipe length and wrap it with hole gap tape, making sure that no with putty. gap is left in the insulation Front panel pipe’s cut line.
  • Page 22 Application Information M5MSY-2010 Routing of Piping • The refrigerant piping can be routed to the unit in a number of ways (left or right from the back of the unit), by using the cut-out holes on the casing of the unit . Bend the pipes carefully to the required position in order to align it with the holes.
  • Page 23 M5MSY-2010 Application Information • Fix the installation plate fi rmly to the wall, without tilting to left or right. Use a plumb line, if available. Use tape measure as shown. Recommended mounting plate Position the end of a tape measure retention spots (5 spots in all) Through the wall...
  • Page 24 Application Information M5MSY-2010 Water Drainage Piping • The indoor drain pipe must be downward gradient for smooth drainage. Avoid situation as shown in fi gure below. Water Drainage Water Retention dipped Water Water Water into leaking leaking leaking water Drain Correct Wrong Wrong...
  • Page 25 M5MSY-2010 Application Information Ceiling Cassette Drain Piping Thermal Insulation Wrap the insulated pipe with the finishing tape from bottom to top Front Panel Air Filter (behind the grille) Air Intake Grille Air Discharge Louver Preliminary Site Survey • Electrical supply and installation is to confi rm to local authority’s (e.g. National Electrical Board) codes and regulations.
  • Page 26 Application Information M5MSY-2010 Unit Installation 770.0 mm (Hanging rod) 15.0 18.0 538.0 529.0 19.0 32.0 580.0 ~ 610mm (CEILING OPENING MEASUREMENT) Piping Direction M5CKY-C M5CKY-E • The indoor unit must be away from heat and steam sources (avoid installing it near an entrance). •...
  • Page 27 M5MSY-2010 Application Information Drain Piping Work • Drain pipe must be downward gradient for smooth drainage. • Avoid the drain pipe from up and down slope to prevent reversal fl ow. INDOOR UNIT • During the drain pipe connection, be careful not to exert extra force on the drain connector at the indoor unit.
  • Page 28 Application Information M5MSY-2010 Note: Install the front frame panel fi rmly to prevent cool air leakage which will cause condensation and water dripping. Fresh Air Intake For M5CKY-E Unit Take off the panel from the indoor unit Remove the PE foam from the drain pan and another one on the unit. Remove the pre-punched panel on the CKC unit with a screwdriver.
  • Page 29 M5MSY-2010 Application Information Fig. 2 The direction of the fresh air intake is shown as fi g. 2. Sealing Material • It is possible to seal one of the four air discharge outlet (sealing two or more air discharge outlet could cause a malfunction).
  • Page 30 Application Information M5MSY-2010 Possible Opening Dimension for Duct Connection Note: 1. Avoid to use the short duct on which the air discharge grille can be completely closed, to prevent evaporator freezing. 2. In order to prevent condensation forming, be sure that there is suffi cient thermal insulation and no leakage of cool air when installing the short duct.
  • Page 31 M5MSY-2010 Application Information Preliminary Survey • Electrical supply and installation is to confi rm to local authority’s (e.g. National Electrical Board) codes and regulations. • Voltage supply fl uctuation must not exceed ± 10% of rated voltage. Electricity supply lines must be independent of welding transformers which can cause high supply fl...
  • Page 32 Application Information M5MSY-2010 Ceiling Convertible Preliminary Site Survey • Electrical supply and installation is to confi rm to local authority’s (e.g. National Electrical Board) codes and regulations. • Voltage supply fl uctuation must not exceed ± 10% of rated voltage. Electricity supply lines must be independent of welding transformers which can cause high supply fl...
  • Page 33 M5MSY-2010 Application Information Please ensure that the following steps are taken: • Check the gradient for drainage fl ow as recommended in Figure 4. • Provide clearance for easy servicing and optimal air fl ow as shown in Figure 5. •...
  • Page 34 Application Information M5MSY-2010 Under Ceiling Installation Install the Suspension Bolts 1. Install the suspension bolts so that it can support the indoor unit. 2. Adjust the distance to ceiling before installation. 3. Refer to the dimension given (Fig. 5) to install the unit. Install the Indoor Unit 1.
  • Page 35 M5MSY-2010 Application Information Floor Standing Installation 1. Refer to the dimension as illustrated when installing the mounting bracket. 2. Determine the pipe hose position using the rear piping hole. Drill the pipe hole at the slight downward slant to the outdoor side. MOUNTING BRACKET HOCK THE UNIT ON THE MOUNTING BRACKET...
  • Page 36 Application Information M5MSY-2010 Piping and Drain Hose Installation Under Ceiling Type 1. The piping direction can be 2 ways as illustrated. 2. The drain hose is only 1 way. Floor Standing Type How to Install the Drain Hose 1. Remove the 2 screws and the drain pipe holder. 2.
  • Page 37 M5MSY-2010 Application Information How to Remove the Air Inlet Grille 1. Remove the air inlet grille by both hands as the direction shown. 2. Loosen the screws for fi xing the panel arm (3 screws – Left, Right and Center). Do not remove the screws at this time.
  • Page 38 Application Information M5MSY-2010 How to Install the Air Filter To Adjust the Vane Direction Adjust the vane linkage as the direction shown to get the required vane direction. Dimension of the Fresh Air Intake Hole 64.0 70.0...
  • Page 39 RETURN AIR AIR DISCHARGE NOZZLE OUTDOOR UNIT Indoor Unit Combination for Outdoor Unit M5MSY20BR, M5MSY25BR and M5MSY30BR Indoor Units with model name M5WMY10JR, M5WMY15JR and M5WMY20JR could be coupled with this outdoor unit. The following table shows the possible coupling combinations available.
  • Page 40 Application Information M5MSY-2010 • The outdoor unit must be installed in such a way, so as to prevent short circuit of the hot discharged air or obstruction to the smooth air fl ow. Please follow the installation clearance shown in the fi gures below. Select the coolest possible place where intake air temperature is not greater than the outside air temperature (maximum 45°C/113°F) •...
  • Page 41 Total Piping Pre-charged Additional Piping Length (m) Difference(m) length (m) (kg) Charge (g/m) Length(m) M5MSY20BR ≤ 50 L ≤ 25 H ≤ 15 (2 Ports) ≤ M5MSY25BR L ≤ 25 H ≤ 15 (3 Ports) M5MSY30BR L ≤ 25 H ≤...
  • Page 42 • Cut the connection pipe with a pipe cutter. Cutting copper tube 1/4t Model Pipe Liquid 1/4” 1/4” M5MSY20BR 1/2” 1/2” Liquid 1/4” 1/4” 1/4” M5MSY25BR 3/8” 1/2” 1/2” •...
  • Page 43 M5MSY-2010 Application Information ELECTRICAL WIRING CONNECTION IMPORTANT: The fi gures shown in the table are for information purpose only. They should be checked and selected to comply with the local/national codes of regulations. This is also to the type of installation and conductors used.
  • Page 44 Application Information M5MSY-2010 VACUUMING AND CHARGING Purging the piping and the indoor unit Liquid side Indoor Unit Outdoor Unit Except for the outdoor unit which is pre-charged with Discharge valve Close refrigerant R410A, the indoor unit and the refrigerant connection pipes must be air-purged because the air containing moisture that remains in the refrigerant Gas side cycle may cause malfunction of the compressor.

  • Page 45: Engineering & Physical Data

    M5MSY-2010 Engineering & Physical Data Engineering & Physical Data General Data - Heat pump MODEL INDOOR UNIT M5WMY 10JR M5WMY 15JR M5WMY 20JR M5WMY 25JR AIR DISCHARGE 4 WAY AUTOMATIC LOUVER (UP & DOWN) INDOOR UNIT OPERATION WIRELESS REMOTE CONTROL HIGH l/s / CFM 153 / 324...
  • Page 46 Engineering & Physical Data M5MSY-2010 General Data - Heat pump MODEL INDOOR UNIT M5CKY 20ER M5CKY 25ER AIR DISCHARGE 4 WAY AUTOMATIC LOUVER (UP & DOWN) CONTROL OPERATION WIRELESS OR WIRED REMOTE CONTROL HIGH l/s / CFM 283 / 600 321 / 680 AIR FLOW MEDIUM...
  • Page 47 M5MSY-2010 Engineering & Physical Data General Data - Heat pump MODEL INDOOR UNIT M5CMY 15ER M5CMY 20ER M5CMY 25ER AIR DISCHARGE AUTOMATIC LOUVER (UP & DOWN) INDOOR UNIT OPERATION WIRELESS OR WIRED REMOTE CONTROL HIGH l/s / CFM 240 / 508 245 / 520 274 / 580 AIR FLOW...
  • Page 48 Engineering & Physical Data M5MSY-2010 General Data - Heatpump UNIT NAME M5MSY20BR MODEL TYPE 1-to-2 Btu/h 18400 (5100 - 21200) NOMINAL COOLING CAPACITY (Min - Max) 5400 (1500 - 6200) Btu/h 21800 (2400 - 23500) NOMINAL HEATING CAPACITY (Min - Max)
  • Page 49 M5MSY-2010 Engineering & Physical Data General Data - Heat pump UNIT NAME M5MSY25BR MODEL TYPE 1-to-3 Btu/h 22200 (3400 - 26100) NOMINAL COOLING CAPACITY (Min - Max) 6500 (1000 - 7650) Btu/h 25200 (3100 - 28000) NOMINAL HEATING CAPACITY (Min - Max) 7400 (900 - 8200) NOMINAL TOTAL INPUT POWER (COOLING) 1702...
  • Page 50 Engineering & Physical Data M5MSY-2010 General Data - Heat pump UNIT NAME M5MSY30BR MODEL TYPE 1-to-4 Btu/h 26100 (4100 - 31000) NOMINAL COOLING CAPACITY (Min - Max) 7650 (1200 - 9100) Btu/h 28700 (3100 - 30700) NOMINAL HEATING CAPACITY (Min - Max) 8400 (900 - 9000) NOMINAL TOTAL INPUT POWER (COOLING) 2113...

  • Page 51: Components Data - Heat Pump

    M5MSY-2010 Engineering & Physical Data Components Data - Heat pump MODEL INDOOR UNIT M5WMY 10JR M5WMY 15JR M5WMY 20JR M5WMY 25JR TYPE CROSS FLOW FAN QUANTITY MATERIAL ACRYLO NITRILE STYRENE + GLASS FIBER INDOOR FAN DRIVE DIRECT DIAMETER mm/in 92 / 3.6 102 / 4.0 LENGTH mm/in...
  • Page 52 Engineering & Physical Data M5MSY-2010 Components Data - Heat pump MODEL INDOOR UNIT M5CKY 10CR M5CKY 15CR M5CKY 20CR TYPE TURBO QUANTITY MATERIAL ABSG20 INDOOR FAN DRIVE DIRECT DIAMETER mm/in 315 / 12.4 LENGTH mm/in 163 / 6.4 TYPE INDUCTION INDOOR FAN MOTOR QUANTITY INDEX OF PROTECTION (IP)
  • Page 53 M5MSY-2010 Engineering & Physical Data Components Data - Heat pump MODEL INDOOR UNIT M5CKY 20ER M5CKY 25ER TYPE TURBO QUANTITY MATERIAL ASG 10% INDOOR FAN DRIVE DIRECT DIAMETER mm/in 486 / 19.1 LENGTH mm/in 172 / 6.8 TYPE INDUCTION INDOOR FAN MOTOR QUANTITY INDEX OF PROTECTION (IP) IP20...
  • Page 54 Engineering & Physical Data M5MSY-2010 Components Data - Heat pump MODEL INDOOR UNIT M5CCY 10CR M5CCY 15CR M5CCY 20CR M5CCY 25CR TYPE SIROCCO QUANTITY MATERIAL GALVANISED STEEL INDOOR FAN DRIVE DIRECT DIAMETER mm/in 164 / 6.5 164 / 6.5 160 / 6.3 160 / 6.3 LENGTH mm/in...
  • Page 55 M5MSY-2010 Engineering & Physical Data Components Data - Heat pump MODEL INDOOR UNIT M5CMY 15ER M5CMY 20ER M5CMY 25ER TYPE SIROCCO QUANTITY MATERIAL INDOOR FAN DRIVE DIRECT DIAMETER mm/in 145 / 5.7 LENGTH mm/in 200 / 8.9 TYPE INDUCTION INDOOR FAN MOTOR QUANTITY INDEX OF PROTECTION (IP) IP20...
  • Page 56 Engineering & Physical Data M5MSY-2010 Components Data - Heatpump MODEL UNIT NAME M5MSY20BR M5MSY25BR M5MSY30BR TYPE PROPELLER QUANTITY OUTDOOR FAN MATERIAL POLYPROPYLENE + GLASS FIBER + MICA DRIVE DIRECT DIAMETER mm/in 455 / 18 TYPE DC BRUSHLESS OUTDOOR FAN MOTOR...

  • Page 57: Performance Data

    M5MSY-2010 Performance Data Performance Data Model: M5MSY20BR Cooling Mode Each capacity (kW) Total capacity (kW) Total input (W) Total current (A) Combination of indoor unit A room B room Rated Rated Rated 2.50 2.50 3.00 4.03 2.80 3.60 3.50 3.50 3.70...
  • Page 58 Performance Data M5MSY-2010 Model: M5MSY25BR Cooling Mode Each capacity (kW) Total capacity (kW) Total input (W) Total current (A) Combination of indoor unit A room B room C room Rated Rated Rated 2.50 2.50 3.00 4.24 2.67 3.80 3.50 3.50 3.70 3.85 4.10...
  • Page 59 M5MSY-2010 Performance Data Model: M5MSY30BR Cooling Mode Total capacity Each capacity (kW) Total input (W) Total current (A) (kW) Combination of indoor unit A room B room C room D room Rated Rated Rated 2.50 2.50 3.00 4.24 2.70 3.80 3.50 3.50 3.70...

  • Page 60: Outline And Dimension

    Outline and Dimension M5MSY-2010 Outline and Dimension Outdoor Unit Model: M5MSY20/25/30BR Dimension (inch) (37) (13.7) (29.8) (33.7) (15.4) (28.9) (23.7) (12.9) (11.9) (14.6) (14.3) (10.7) Dimension (inch) (17.6) (7.5) (3.1) (2.3) (7.1) (1.3) (1.5) (1.3) (0.6) (0.9) (1.7) Note: Dimension in mm...
  • Page 61 M5MSY-2010 Outline and Dimension Indoor Unit Model: M5WMY 10/15JR Note: Dimension in mm Indoor Unit Model: M5WMY 20/25JR 1065 Note: Dimension in mm...
  • Page 62 Outline and Dimension M5MSY-2010 Indoor Unit Model: M5CKY 10/15/20CR MODEL M5CKY 10/15/20CR Note: Dimension in mm Indoor Unit Model: M5CKY 20/25ER MODEL M5CKY 20/25ER Note: Dimension in mm...
  • Page 63 M5MSY-2010 Outline and Dimension Indoor Unit Model: M5CCY 10/15/20/25CR MODEL M5CCY 10/15CR 212,8 M5CCY 20CR 1041 1002 1065 212,8 M5CCY 25CR 1176 1137 1097 1200 212,8 Note: Dimension in mm Indoor Unit Model: M5CMY 15/20/25ER Note: Dimension in mm...

  • Page 64: Electrical Data

    Electrical Data M5MSY-2010 Electrical Data Indoor MODEL INDOOR UNIT M5WMY 10JR M5WMY 15JR M5WMY 20JR M5WMY 25JR INSULATION GRADE POWER SOURCE V/Ph/Hz 220 - 240 / 1 / 50 RATED INPUT POWER INDOOR MOTOR RATED RUNNING CURRENT 0.19 0.21 0.32 0.56 MOTOR OUTPUT POLES...
  • Page 65 M5MSY-2010 Electrical Data Electrical Data - Heat pump Outdoor MODEL OUTDOOR UNIT M5MSY20BR M5MSY25BR M5MSY30BR INSULATION GRADE CLASS E POWER SOURCE V/Ph/Hz 220 - 240 / 1 / 50 OUTDOOR MOTOR RATED INPUT POWER 68.3 68.3 RATED RUNNING CURRENT 0.93 0.79...

  • Page 66: Wiring Diagram

    Wiring Diagram M5MSY-2010 Wiring Diagram Outdoor Unit Model: M5MSY20BR...
  • Page 67 M5MSY-2010 Wiring Diagram Outdoor Unit Model: M5MSY25BR...
  • Page 68 Wiring Diagram M5MSY-2010 Outdoor Unit Model: M5MSY30BR...
  • Page 69 M5MSY-2010 Wiring Diagram Indoor Unit Model: M5WMY10/15JR Model: M5WMY20/25JR...
  • Page 70 Wiring Diagram M5MSY-2010 Indoor Unit Model: M5CKY10/15/20CR Model: M5CKY20/25ER...
  • Page 71 M5MSY-2010 Wiring Diagram Indoor Unit Model: M5CCY10/15CR Model: M5CCY20/25CR...
  • Page 72 Wiring Diagram M5MSY-2010 Indoor Unit Model: M5CMY15ER Model: M5CMY20/25ER...

  • Page 73: Service And Maintenance

    M5MSY-2010 Service and Maintenance Service and Maintenance Warning • Disconnect from main supply before servicing the air conditioner. • The unit is designed to give long life operation with minimum maintenance required. However, it should be regularly checked and the following items should be given due attention. Components Maintenance Procedures Period...
  • Page 74 Service and Maintenance M5MSY-2010 Air Filter 1. Open the front panel. • Hold the panel at the recesses on the main unit (2 recesses on right and left sides) and lift it until it stops. Recess on main unit 2. Pull out the air fi lters. •...

  • Page 75: Troubleshooting

    M5MSY-2010 Troubleshooting Troubleshooting Fault Condition When a malfunction of the air conditioner unit is detected, immediately switch off the main power supply before proceeding with the following troubleshooting procedures. The following are common fault conditions and simple troubleshooting tips. If any other fault conditions which are not listed occur, contact your nearest local dealer.
  • Page 76 Troubleshooting M5MSY-2010 By means of diagnostic fl ow chart: Generally, there are two kinds of problems, i.e. starting failure and insuffi cient cooling / heating. “Starting failure” is caused by electrical defect while improper application or defects in refrigerant circuit causes “Insuffi cient cooling / heating”.
  • Page 77 M5MSY-2010 Troubleshooting Change the contactor Coil burnt Faulty Condenser fan contactor Change the contacts Contact faulty Repair or replace the motor contactor Fan motor faulty Blown Other electrical Repair or change if necessary component faulty Change the contactor Coil burnt Faulty Evaporator contactor...
  • Page 78 Troubleshooting M5MSY-2010 ii ) Diagnosis of Refrigerant Circuit / Application There might be some causes where the unit starts running but does not perform satisfactorily, i.e. insuffi cient cooling. Judgement could be made by measuring temperature difference of indoor unit’s intake and discharge air as well as running current.
  • Page 79 M5MSY-2010 Troubleshooting Insuffi cient heating Indoor/outdoor coil dirty Clean the coil (clogged) Restricted circulation Clean the fi lter Indoor air fi lter dirty Change or repair the motor Fan motor malfunction Obstruction at air inlet Remove the obstruction /outlet of indoor / outdoor unit Windows / doors wide High heating...
  • Page 80 Troubleshooting M5MSY-2010 Indicator Lights IR Signal Receiver When an infrared remote control operating signal has been transmitted, the signal receiver on the indoor unit will respond as below to confi rm acceptance of the signal transmission. ON to OFF 1 Long Beep OFF to ON 2 Short Beep Pump down/Cool force on...
  • Page 81 M5MSY-2010 Troubleshooting Error Code Diagnosis by Wireless Handset GS01 TURBO QUIET SLEEP MODE TIMER ON TIMER CANCEL CANCEL CLOCK CANCEL OFF TIMER CANCEL Diagnosis Step 1. Hold down ON TIMER CANCEL button or OFF TIMER CANCEL button for 5 seconds, a “ ”...
  • Page 82 Troubleshooting M5MSY-2010 Error Codes ERROR ERROR DESCRIPTION CODE NORMAL INDOOR PCB ERROR DRAIN PUMP ABNORMAL ANTIFREEZE (COOLING)/HEAT EXCHANGER OVERHEAT (HEATING) INDOOR FAN MOTOR ABNORMAL ELECTRICAL AIR CLEANER ABNORMAL INDOOR HEAT EXCHANGER (1) THERMISTOR SHORT/OPEN INDOOR HEAT EXCHANGER (2) THERMISTOR SHORT/OPEN LOUVER LIMIT SWITCH ERROR INDOOR ROOM THERMISTOR SHORT/OPEN OUTDOOR PCB ERROR...
  • Page 83 M5MSY-2010 Troubleshooting ERROR ERROR DESCRIPTION CODE COMMUNICATION ERROR (OUTDOOR CONTROL PCB AND INVERTER PCB) OPEN PHASE OR VOLTAGE UNBALANCE HEAT SINK THERMISTOR SHORT/OPEN CAPACITY SETTING ERROR INSUFFICIENT GAS DC VOLTAGE OUT OF RANGE COMMUNICATION ERROR COMMUNICATION ERROR (OUTDOOR CONTROL PCB AND IPM PCB) INSTALLATION ERROR PIPING &...
  • Page 84 Troubleshooting M5MSY-2010 ANTIFREEZE (COOLING)/HEAT EXCHANGER OVER- HEAT (HEATING) HEAT EXCHANGER OVERHEAT COMPRESSOR SENSOR SYSTEM ERROR COMPRESSOR FEEDBACK DETECTION ERROR AC CURRENT SENSOR ERROR OUTDOOR AIR THERMISTOR SHORT/OPEN COMPRESSOR DISCHARGE PIPE THERMISTOR SHORT/OPEN/MISPLACED COMPRESSOR DISCHARGE PIPE THERMISTOR SHORT/OPEN/MISPLACED LIQUID PIPE THERMISTOR SHORT/OPEN GAS PIPE THERMISTOR SHORT/OPEN HEAT SINK THERMISTOR SHORT/OPEN OUTDOOR CONTROL BOX OVERHEAT...

  • Page 85: Exploded View And Part List

    Exploded View and Part List Indoor Unit Model: M5WMY10/15JR No Description No Description Assy. Front Grille 11 Blower Panel, McQuay 12 Assy. Installation Plate Disch. Grille Hor.Blade Assy. 13 Right Side Panel Assy. Bottom Frame 14 Cover, Drip Proof Assy. Control Box 15 Clip, Coil Sensor Assy.
  • Page 86 Exploded View and Part List M5MSY-2010 Indoor Unit Model: M5WMY 20/25JR No Description No Description 10 Assy. Control Box Assy. Chasis 11 Assy. Control Module Motor 12 Cover, Control Box Blower 13 Cover, Service Fan Bush 14 Assy. Mounting Plate Cover, Motor 15 Assy.
  • Page 87 M5MSY-2010 Exploded View and Part List Indoor Unit Model: PLCKY-CR No Description No Description 11 Lingkage, Motor Cover Frame 12 Assy. Bracket Receiver (LED/SLM) Assy. Intake Grille B 13 Assy. Motor Filter 14 Crank, Connector Lock, Grille 15 Louver, Holder Discharge, Foam 16 Cross, Crank Discharge, Foam LED...
  • Page 88 Exploded View and Part List M5MSY-2010 Indoor Unit Model: M5CKY 10/15/20CR Note: All exploded view and part list are subjected to change by the manufacturer without prior notice...
  • Page 89 M5MSY-2010 Exploded View and Part List Indoor Unit Model: M5CKY 10/15/20CR No Description No Description 14 Bush, Pump Assy. Base 15 Assy. Drain Pump Support Bracket Assy. Casing 16 Assy. End Plate Support Assy. Heat Exchanger 17 Clip, Coil Sensor Cover, Fan 18 Support, Heat Exchanger Blower...
  • Page 90 Exploded View and Part List M5MSY-2010 Indoor Unit Model: PLCKY-ER No Description No Description Front, Frame Crank Connector Assy., Intake Grille Assy., LED Assy., Air Discharge Main 10 Wire, Guide Assy., Air Discharge Main Right 11 Cover, Cross Connector Assy., Air Discharge Main Left 12 Assy., Cover Corner A Air Filter, CK-A/AR 13 Assy., Cover Corner B...
  • Page 91 M5MSY-2010 Exploded View and Part List Indoor Unit Model: M5CKY 20/25ER Description Description Assy. Base Pan 16 Cover, Wire B Assy. Coil 17 Bracket, Hanger A Assy. Coil Bracket 18 Bracket, Hanger B Assy. Drain Pump Mounting 19 Bracket, Hanger C Assy.
  • Page 92 Exploded View and Part List M5MSY-2010 Indoor Unit Model: M5CCY 10/15/20/25CR No Description No Description Cabinet Assy. Blower Left 10 Motor Assy. Fan Deck Parts Not in Diagram Assy. Heat Exchanger Assy. Drain Pan Handset, Wired Assy. Secondary Drain Pan Air Filter Hanger Holder, Thermistor...
  • Page 93 M5MSY-2010 Exploded View and Part List Indoor Unit Model: M5CMY 15/20/25ER Note: All exploded view and part list are subjected to change by the manufacturer without prior notice...
  • Page 94 Exploded View and Part List M5MSY-2010 Indoor Unit Model: M5CMY 15/20/25ER No Description No Description 12 Assy. Panel Bottom Assy. Top Panel 13 Cover, Hanger L1 (C) Assy. Heat Exchanger 14 Cover, Hanger L2 (D) Assy. Vane 15 Cover, Hanger R1 (A) Assy.
  • Page 95 M5MSY-2010 Exploded View and Part List Outdoor Unit Model: M5MSY20BR Description Description Assy. Base Pan Assy. Comp. Mounting Plate Assy. Outdoor Coil Grommet, Comp. Flat Washer Compressor Washer, Spring Terminal Cover Screw Motor, Bracket Assy. Panel Right Back Plate, Seal Board Assy.
  • Page 96 Exploded View and Part List M5MSY-2010 Outdoor Unit Model: M5MSY25BR Description Description Assy. Base Pan Grommet, Comp. Assy. Outdoor Coil Accumulator Flat Washer Compressor Washer, Spring Terminal Cover Screw Motor, Bracket Assy. Panel Right Back Plate, Seal Board Assy. Panel Top Assy.
  • Page 97 M5MSY-2010 Exploded View and Part List Outdoor Unit Model: M5MSY30BR Description Description Assy. Base Pan Grommet, Comp. Assy. Outdoor Coil Accumulator Flat Washer Compressor Washer, Spring Terminal Cover Screw Motor, Bracket Assy. Panel Right Back Plate, Seal Board Assy. Panel Top Assy.
  • Page 98 Products manufactured in 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 © 2010 McQuay International +1 (800) 432-1342 www.mcquayup.com...

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