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Summary of Contents for York DHW36CMB21S
- Page 1 Service Manual "W" SERIES 30K, 36K, 42K INVERTER-DRIVEN AIR CONDITIONING UNIT Type Model DHW30CMB21S OUTDOOR UNIT DHW36CMB21S DHW42CMB21S PLEASE READ AND UNDERSTAND THIS MANUAL BEFORE USING THIS INVERTER-DRIVEN AIR CONDITIONING UNIT. KEEP THIS MANUAL FOR FUTURE REFERENCE.
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Page 2: Important Notice
Important Notice ● Johnson Controls, Inc. pursues a policy of continuing improvement in design and performance in its products. As such, Johnson Controls, Inc. reserves the right to make changes at any time without prior notice. ● Johnson Controls, Inc. cannot anticipate every possible circumstance that might involve a potential hazard. ●... -
Page 3: Table Of Contents
Service Manual Table of Contents ............i 1. Features and Summary .................. 2. Specifications ......................2 2.1 Specification Sheet ......................2 Cooling Capacity Tables....................5 3. Dimensions Diagrams ..................9 4. Refrigerant System Diagram ...............10 5. Electrical Parts .....................1 5.1 Wiring Diagram ......................11 PCB Printed Diagram.......................13 6. -
Page 4: Important Safety Instructions
1. Introduction This manual concentrates on inverter-driven cooling or heat pump air conditioning units. Read this manual carefully before installation. This manual should be considered as a permanent part of the air conditioning equipment and should remain with the air conditioning equipment. 2. - Page 5 Take the following precautions to reduce the risk of property damage. ● Be careful that moisture, dust, or variant refrigerant compounds not enter the refrigerant cycle during installation work. Foreign matter could damage internal components or cause blockages. ● If air filters are required on this unit, do not operate the unit without the air filter set in place. If the air filter is not installed, dust may accumulate and breakdown may result.
- Page 6 ● Do not position the condensate pipe for the indoor unit near any sanitary sewers where corrosive gases may be present. If you do, toxic gases can seep into breathable air spaces and can cause respiratory injuries. If the condensate pipe is installed incorrectly, water leakage and damage to the ceiling, floor, furniture, or other possessions may result.
- Page 7 under pressure and never open pressurized system parts. ● Before installation is complete, make sure that the refrigerant leak test has been performed. If refrigerant gases escape into the air, turn OFF the main switch, extinguish any open flames and contact your service contractor.
- Page 8 ● Communication cabling shall be a minimum of 18-Gauge, 2-Conductor, Stranded Copper. Shielded cable must be considered for applications and routing in areas of high EMI and other sources of potentially excessive electrical noise to reduce the potential for communication errors. When shielded cabling is applied, proper bonding and termination of the cable shield is required as per Johnson Controls guidelines.
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Page 9: Features And Summary
Service Manual 1. Features and Summary Outdoor Unit DHW30CMB21S DHW36CMB21S DHW42CMB21S... - Page 10 Service Manual DHW30CMB21S Model 208/230 Rated Voltage Power supply Cooling capacity(max~min) 8500(2400~9800) Heating capacity(max~min) 9260(2400~9500) Cooling Power Input(max~min) 2420 Heating Power Input(max~min) 2470 Cooling Current Input 10.5 Heating Current Input 10.7 Rated Power Input 2800 Rated Current 3.52 3.75 ZHUHAI LANDA COMPRESSOR CO.LTD Compressor Model QXAS-D32zX090A Compressor Refrigerant Oil Type...
- Page 11 Service Manual Cross-sectional Area of Power Cable Conductor 0.0062 Recommended Power Cable(Core) 131.2 oz/ft. (Metric) (Metric) (Metric) (Metric) Outer Diameter of Gas Pipe1 (Metric) Outdoor Outer Diameter of Gas Pipe2 Unit (Metric) Outer Diameter of Gas Pipe3 (Metric) Outer Diameter of Gas Pipe4 (Metric) 24.6 indoor)
- Page 12 Service Manual DHW36CMB21S DHW42CMB21S Model 208/230 208/230 Rated Voltage Power supply Cooling capacity(max~min) 9970(2600~10500) 11430(2600~12000) Heating capacity(max~min) 12460(2600~13000) 13190(2600~13500) Cooling Power Input(max~min) 2800 3740 Heating Power Input(max~min) 3350 3650 Cooling Current Input 12.5 16.5 Heating Current Input Rated Power Input...
- Page 13 Service Manual Cross-sectional Area of Power Cable Conductor 0.0062 0.0062 Recommended Power Cable(Core) 131.2 131.2 oz/ft. (Metric) (Metric) (Metric) (Metric) (Metric) Outer Diameter of Gas Pipe1 (Metric) Outdoor Outer Diameter of Gas Pipe2 Unit (Metric) Outer Diameter of Gas Pipe3 (Metric) Outer Diameter of Gas Pipe4 (Metric)
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Page 14: Cooling Capacity Tables
Service Manual 2.2 Cooling Capacity Tables Cooling MODEL: DHW30CMB21S ROOM OUTDOOR TEMPERATURE DRY CONNECTIVE INDOOR UNIT: INDOOR DHY09NWB21S x 2 TEMPERATURE DHY12NWB21S x 1 Total capacity(W) 7186 8391 9044 8474 6697 5228 Sensitive capacity(W) 6194 6818 7084 6779 6127 5175 C(70 Total power input(W) 1736... - Page 15 Service Manual Cooling MODEL: DHW36CMB21S ROOM OUTDOOR TEMPERATURE DRY INDOOR CONNECTIVE INDOOR UNIT: DHY09NWB21S x 4 TEMPERATURE Total capacity(W) 9560 10300 10400 9430 8045 6900 Sensitive capacity(W) 8662 8880 8900 8435 7750 6800 C(70 Total power input(W) Sensitive 2010 2450...
- Page 16 Service Manual Cooling ROOM MODEL:DHW42CMB21S OUTDOOR TEMPERATURE DRY CONNECTIVE INDOOR UNIT: INDOOR DHY09NWB21S x 2 TEMPERATURE DHY12NWB21S x 2 Total capacity(W) 9675 10320 10700 9900 8640 6800 Sensitive capacity(W) 8720 8550 8510 8600 8000 6590 C(70 Total power input(W) 1980 2480 3650 3635...
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Page 17: Dimensions Diagrams
Service Manual Dimensions Diagram DHW30CMB21S 14 4/7 36 2/9 38 3/7 17 1/3 DHW36CMB21S DHW42CMB21S 14 1/4 42 1/2 17 1/3 24 5/6... -
Page 18: Refrigerant System Diagram
Service Manual 4. Refrigerant System Diagram Schematic Diagram of "W" Series Inverter Heat Pump System Heat Exchanger Eutectic Stopper Filter Four-way Valve Silencer High Pressure Swicth Outdoor Uint Compressor Gas/Liquid Separator Electronic Expansion Valve Heating Cooling Indoor Uint Heat Exchanger Heat Exchanger Heat Exchanger Heat Exchanger... -
Page 19: Electrical Parts
Service Manual 5. Electrical Parts 5.1 Wiring Diagram Description Symbol Symbol Color Symbol Symbol Color Symbol Name GREEN COMP Compressor Yellow Brown Grounding wire Blue YEGN Yellow/Green Violet Orange DHW30CMB21S... - Page 20 Service Manual DHW36CMB21S DHW42CMB21S θ θ θ θ θ θ θ θ θ θ θ θ θ θ...
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Page 21: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram N: One side of 208/230V AC-L: terminals of line wire U/V/W: terminals of compressor OVC-COMP: terminals of overload protector EVA-EVE: terminals of EXV(electronic expansion valve) CN802-CN803: terminals of temperature sensor COMU: terminals of communication 4WAY: terminals of 4-way valve HEAT: terminals of... -
Page 22: Function And Control
Service Manual 6. Function and Control 1.Function Control 1) Cooling mode needs or calls the cooling operation condition, the system corresponding electronic expansion valve will be closed. d. 4-way valve energizes e. Outdoor fan control in cooling mode set speed. 3) Heating mode heating mode. -
Page 23: Troubleshooting
7. Troubleshooting 7.1 Malfunction Indicator Indoor display Name of malfunction Compressor runs Defrost Anti-freezing protection IPM protection AC over-current protection Over-burden protection Compressor overload protection Power protection EEPROM reads and write protection Low PN voltage protection Over voltage protection for PN Low pressure protection Outdoor ambient sensor malfunction Outdoor tube sensor malfunction... -
Page 24: Malfunction Checking And Elimination
7.2 Malfunction Checking and Elimination Malfunction display: E6 Communication malfunction Communication malfunction of some indoor units De-energize,check the connection wire of indoor and outdoor unit and the wire of the eletric box is connected correctly Reconnect according to Connected correctly Eliminate the malfunction the wiring diagram De-energize, change the communication wire of the well-... - Page 25 All the indoor units appear communication malfunction De-energize,check the connection wire of indoor and outdoor unit and the wire of the eletric box is connected correctly Reconnect according to Eliminate the malfunction Connected correctly? the wiring diagram De-energize, check if the connection wire between the outdoor mainboard and the filter board according to the wiring diagram Reconnect according to...
- Page 26 Malfunction display: E1 Compressor High Pressure Protection High pressure protection Replace the outdoor Check if the pressure is really high pressure with the Check if pressure switch unit mainboard is abnormal measurement of a manometer Replace pressure switch Refer to Instruction Check if operation mode of indoor unit is Manual of indoor unit properly set...
- Page 27 Malfunction display: E4 Compressor Exhaust High Temperature Protection Discharge temperature protection Measure if temperature sensor’s Measure if compressor’s discharge Replace relevant discharge resistance value is correct temperature has reached 115℃ temperature sensor System pipeline leaks so complementation is needed. Replace the outdoor Please add refrigerant according to the amount unit mainboard specified in the nameplate...
- Page 28 Malfunction display: F2 Failure of Evaporator Temp. Sensor Failure of condenser Temp sensor Check the direction of the plug and Check if the plug of the temperature sensor is correctly socket connected with socket on the mainboard Replace temperature sensor Remove the sensor to check if the resistance value is ok Replace mainboard of the indoor uint...
- Page 29 Malfunction display: F3 Failure of Outdoor Ambient Sensor Failure of outdoor Ambient sensor Check the direction of the plug Check if the plug of the temperature sensor is correctly and socket connected with socket on the mainboard Remove the sensor to check if the resistance value is ok Replace temperature sensor Replace mainboard of the indoor uint Malfunction display: F5 Failure of Exhaust Temp.
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Page 30: 3 Maintenance For Normal Malfunctions
7.3 Maintenance for Normal Malfunction 1. Air Conditioner Can't be Started Up Possible Causes connection for power plug connected well. Wrong wire connection between or poor connection for wiring terminals reliably correctly once improper Replace batteries for remote controller Malfunction of remote controller Repair or replace remote controller 2. - Page 31 4. ODU Fan Motor Can't Operate Possible causes Connect wires according to wiring diagram to connection diagram damaged fan capacitor. Power voltage is a little low or Motor of outdoor unit is damaged is bad and ODU compressor generates a lot of 5.
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Page 32: Removal Procedures
Service Manual 8. Removal Procedures Warning: Be sure to wait for a minimum of 20 minutes after turning off all DHW30CMB21S is equalized Steps Procedure 2. Remove top cover top cover top cover upwards to remove it. 3.Remove front side plate front side plate front side plate... - Page 33 Service Manual Steps Procedure 4.Remove rear guard grille rear guard grille side plate. 6.Remove grille and cabinet cabinet grille...
- Page 34 Service Manual Steps Procedure 7. Remove outer case Remove screws connecting outer case and motor outer case 8. Remove electric box assy electric box assy 2.Remove 2 screws connecting motor support and motor support. motor blade 4.Remove 4 screws fixing reactor sub-assy and assy.
- Page 35 Service Manual Steps Procedure 10 Remove 4-way valve 4-way valve valve. 11. Remove valve support valve support 12. Remove connection pipe sub-assy connection pipe sub-assy...
- Page 36 Service Manual Steps Procedure 13. Remove compressor compressor Note: reactor middle isolation...
- Page 37 Service Manual Steps Procedure 16.Remove left side plate support plate of condenser Remove screws connecting left side plate and left side plate condenser 17. Remove condenser support plate of condenser...
- Page 38 Service Manual DHW36CMB21S DHW42CMB21S Steps Procedure 2. Remove top cover top cover top cover upwards to remove it. 3.Remove front side plate front side plate front side plate...
- Page 39 Service Manual Steps Procedure side plate. 6.Remove grille and cabinet cabinet grille 7. Remove outer case Remove screws connecting outer case and motor outer case...
- Page 40 Service Manual Steps Procedure 8. Remove electric box assy electric box assy 2.Remove 2 screws connecting motor support and motor support. motor blade 4.Remove 4 screws fixing reactor sub-assy and assy. motor support 10 Remove 4-way valve 4-way valve valve.
- Page 41 Service Manual Steps Procedure 11. Remove valve support valve support 12. Remove connection pipe sub-assy connection pipe sub-assy 13. Remove compressor compressor Note:...
- Page 42 Service Manual Steps Procedure 14.Remove compressor mounting plate sub-assy compressor mounting mounting plate sub-assy. plate sub-assy reactor 4.Remove 4 screws fixing reactor sub-assy and assy.
- Page 43 Service Manual Steps Procedure middle isolation support plate of condenser 18.Remove left side plate Remove screws connecting left side plate and left side plate condenser 19. Remove condenser support plate of condenser...
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Page 44: Appendix
Service Manual Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature display display display Celsius Celsius Celsius temperature temperature temperature 60.8 69/70 69.8 78/79 78.8 62/63 62.6 71/72 71.6 80/81 80.6 64/65... - Page 45 Service Manual Appendix 3: Pipe Flaring Method Pipe Note: Improper pipe flaring is the main cause of refrigerant leakage. Please Pipe cutter flare the pipe according to the following steps: Leaning Uneven Burr Pipe Shaper Downwards C:Put on suitable insulating pipe Union pipe Pipe Flare Tool 45 degrees is for R410...
- Page 46 Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor(15K) Temp( Temp( Temp( Temp( 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009 16.39 3.454 0.98 108.7 15.68 3.333 0.952...
- Page 47 Service Manual Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp( Temp( Temp( Temp( 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2 4.289 1.233 129.9 19.14 4.14 1.198...
- Page 48 Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor(50K) Temp( Temp( Temp( Temp( 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8 77.35 15.17 4.08 580.6 73.83 14.62 3.96 548.9 70.5 14.09...
- Page 50 Product improvement, specifications and appearance in this manual are subject to change without prior notice. LIT - 12012185 © Johnson Controls, Inc. USA...
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