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Haier HC18D1VAR, Service Manual

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Haier HC18D1VAR Service Manual Download Page 1

SERVICE MANUAL 

ƽ

Features

 Cooling only ,

13SEER

Models

HC18D1VAR  HC24D1VAR 
HC30D1VAR  HC36D1VAR 
HC42D1VAR  HC48D1VAR 
HC60D1VAR

Manual code: SYJS----AM-----004-0

5

---Rev.6

Edition: 200

6

-11-20

z

High efficiency design

z

Compact design of outdoor unit 

z

z

Haier Hi-Efficiency aluminium fin and copper tube design

z

Benchmark hermetic compressor design

z

Manufactured for convenient installation and maintenance

z

Powder coated full metal jacket

Central Air Conditioning 

Summary of Contents for HC18D1VAR

Page 1: ...nual code SYJS AM 004 05 Rev 6 Edition 2006 11 20 z High efficiency design z Compact design of outdoor unit z z Haier Hi Efficiency aluminium fin and copper tube design z Benchmark hermetic compressor design z Manufactured for convenient installation and maintenance z Powder coated full metal jacket Central Air Conditioning ...

Page 2: ...ay be necessary to work with circuits with live electrical components Only individuals with proper training that can follow all electrical safety precautions should perform this work Failure to follow all safety precautions could result in property damage serious injury or death 3 SAFETY PRECAUTION 8 5 ELECTRICAL CONTROL DEVICES 10 4 SYSTEM COMPONENTS AND FUNCTIONS 8 6 APPLICATION 11 7 INSTALLATIO...

Page 3: ...Vertical H Horizontal paint E DC motor 1 DESCRIPTION OF PRODUCTS FEATURES This manual discusses split central air conditioning and indoor coils Split central air condition system refers to the physical location of major air conditioning components The split system air conditioning are manufactured to standards of quality and performance They are 13 SEER Seasonal Engery Efficiency Ratio which meet ...

Page 4: ...mbient temperatures down to 0 This control should be installed in units that operate in cooling when outdoor ambient temperatures below 65 and is recommended for all commercial applications and system pressure combinations This option maybe required on reciprocating compressors with START COMPONENTS This option provides additional starting for covering a wide range of voltages SERVICE VALVES AND P...

Page 5: ...ical Voltage Phase Frequency Hz 208 230 1 60 208 230 1 60 208 230 1 60 208 230 1 60 208 230 1 60 208 230 1 60 208 230 1 60 Minimum Circuit Amps 8 6 11 6 12 4 15 9 17 7 21 8 33 7 Maximum Overload Amps 15 20 20 25 30 35 55 Compressor Type Maker Reciprocating Reciprocating Reciprocating Reciprocating Reciprocating Reciprocating Scroll Model Number H20J153ABCA H20J213ABCA H20J223ABCA H20J293ABCA H20J3...

Page 6: ...ic mesh Optional Optional Optional Optional Optional Optional Optional Features Galvanized Steel Cabinet Yes Yes Yes Yes Yes Yes Yes Coil Design Haier Enhanced Coil Haier Enhanced Coil Haier Enhanced Coil Haier Enhanced Coil Haier Enhanced Coil Haier Enhanced Coil Haier Enhanced Coil Fully Enclosed Motor Yes Yes Yes Yes Yes Yes Yes Removable Top Grill Assembly Yes Yes Yes Yes Yes Yes Yes Elevated ...

Page 7: ...service 10 sides 18 service Weight lbs Net 156 0 194 0 198 0 203 0 231 0 244 0 271 0 Ship 167 0 209 0 216 0 220 0 249 0 262 0 291 0 Agency Approvals Performance Certification ARI ARI ARI ARI ARI ARI ARI Safety Approvals UL cUL UL cUL UL cUL UL cUL UL cUL UL cUL UL cUL Packaging Carton Type Cardboard pallet Cardboard pallet Cardboard pallet Cardboard pallet Cardboard pallet Cardboard pallet Cardboa...

Page 8: ...IES THE USE OF SUCH UNAUTHORIZED COMPONENTS OR ACCESSORIES MAY ENDANGER LIFE AND OR INJURY RESULTING FROM THE USE OF SUCH UNAUTHORIZED COMPONENTS OR PROPERTY THE MANUFACTURER DISCLAIMS ANY RESPONSIBILITY FOR SUCH LOSS ACCESSORIES performing system maintenance Current single phase units use two types of compressors The design of the two compressors types is to move refrigerant When paired motor wit...

Page 9: ...is fan pulls outdoor air through the outdoor coil To access the condenser fan or motor carefully remove the unit top a service loop is provided on the motor wiring for easier access METERING DEVICES Fig 4 4 One type of refrigerant metering device is the flow check piston It has two functions First it acts as a When refrigerant enters the device from the square end the piston seats and forces all r...

Page 10: ...P draw Overloads protect against over current or over temperature conditions Those located in the outdoor unit requirements for each unit are found in the Specifications technician may incorrectly diagnose this as an open compressor winding RELAYS COMPREESSOR CONTACTOR contacts while others use 2 pole or 3 pole contacts compressor and outdoor fan OPTIONAL DELAYS AND KITS before re starting the com...

Page 11: ...Contractors cooling load 6 APPLICATION of America ACCA J Manual method of load calculation is one recognized procedure for determining the Sensible heat is the heat energy measured on the dry bulb thermometer equipment to provide comfort The first is sensible capacity After the proper equipment combination has been selected satisfying both sensible and latent The second form of heat is called late...

Page 12: ... per minute 400CFM TON of 3ein the return duct and 4ein the supply duct This can reduce the cooling capacity of an air conditioning system by as much as 30 This means a loss of almost one ton of cooling capacity from a three ton system The air distribution system has the greatest effect On the quality of the installation and the owner satisfaction The correct air quantity is critical for correct a...

Page 13: ...stallation service or maintenance and could possibly result in fire electrical shock property damage This product is designed and manufactured to permit installation in accordance with National Codes It is prevailing local codes and regulations The manufacturer assumes no responsibility for equipment installed in violation of any codes or regulations The United States Environmental Protection Agen...

Page 14: ...isconnect switch Failure to shut off power can cause electrical shock resulting in personal injury or death The best protection is frequent cleaning and avoiding exposure to debris that blocks airflow 7 3 INSTALLATION Power supply and wiring Provide gutters or other shielding at roof level Locate unit on a level concrete slab or prefabricate pad To prevent transmission of noise or vibration slab s...

Page 15: ...gn air flow owners should be advised to avoid lawn clippings from depositing When necessary for confined applications provide a minimum of 10 clearance on all air inlet sides discharged free from unobstructions If units must be located under an overhang there should be a on the fin coil surface and reducing the system performance 7 5 REFRIGERANT PIPING 1 Figure A Figure B Properly sized and instal...

Page 16: ...y supported If metal strapping is used to secure the tubing do not are made Always keep tubing sealed until the connections are to be made In severe applications hot high humidity areas greater thickness may be required Apply the suction line Suction line must be insulated in order to prevent condensation from forming on the piping and to reduce insulation by sliding it on the sealed tubing before...

Page 17: ...iquid and suction valves are closed to contain the charge within the unit Do not force the valve stem against the retaining ring If the valve stem is backed out past the retaining ring system pressure could force the valve stem out of the valve body and possibly cause personal injury Interconnecting piping CAUTION Use caution when removing the service valves caps from the suction and liquid line C...

Page 18: ...rons If unable to obtain 500 microns or vacuum rises above 800 microns after a 15 minutes period 4 When sure of a tight well evacuated system charge with refrigerant For systems with capillary tube or fixed orifice metering device WARNING Do not vent refrigerant to the atmosphere It is a violation of federal law to do so If or recycling device 1 Fully open both shutoff valves 2 Connect service gag...

Page 19: ...se a fire or an electric shock due to circuit overloads All electrical work should be performed by knowledgeable personals according to national codes and in accordance with this installation manual Ground the unit According to the national electric code Electrical installation consists of power supply wiring to the condensing unit and control wiring between thermostat indoor unit and the condensi...

Page 20: ... Instruct the owner on operation and maintenance Leave this Installation and Operating Manual and the Use and Care Manual with owner 8 Check unit for tubing and sheet metal rattles 2 Turn temperature setting above the room temperature 5 Check to see if compressor and outdoor fan are running correctly SEQUENCE OF OPERATION COOLING CYCLE 1 2 The vapor leaves the compressor and passes through the rev...

Page 21: ... MAIN ELECTRICAL POWER TO THE UNIT BEFORE ATTEMPTING ANY 1 attention until dust and fibers from the construction is removed 2 Replace glass fiber filters when dirty 3 Clean semi permanent plastic impregnated fiber filters Caution Do not operate any system without filters Note if an electronic air cleaner is installed remove any mechanical filter from the air handler Follow the installation and mai...

Page 22: ...this Installation Manual should be used as a guide REFRIGERANT RECOVERY Refrigerant systems using chlorofluorocarbon CFC and Hydrochlorofluorocarbon HCFC refrigerants system are subject regulation by the clean air Act of 1990 This act prohibits the unrestricted release Recovery means to collect the refrigerant in a special holding container Recycling means to run the refrigerant through a filterin...

Page 23: ...s for indoor and outdoor units Correct control voltage at outdoor unit and transformer adequate for all control voltage loads Correct wire size for both indoor and outdoor units OUTDOOR UNIT INSTALLATION Unit level with proper clearances for air flow and service Proper elevation of outdoor unit Solid pad REFRIGERANT LINES Proper length according to manufacturer s instructions Proper size according...

Page 24: ... the capacitor analyzer is not available use a quality ohmmeter to check the resistance between the Place the Ohmmeter probes on the capacitor terminals and observe B If the meter pointer does not move the Open capacitor is open and should be REPLACED A If the meter pointer moves towards zero then gradually moves to higher ohm values the C If the meter pointer goes toward ZERO ohms and stays at or...

Page 25: ...se power RPM and electrical CONDENSER FAN BLADE LOCATION Dimension A will be from 2 to 4 depending on the unit model number Be sure to check this dimension BEFORE removing the fan blade Note When parts combination results in motor blade interference the fan blade should be located to provide 1 8 motor blade clearance RELAYS ELECTRICAL OPERATION Contactor coils are made with copper wires wrapped ar...

Page 26: ...FPM If the area of duct is known 1 08 hTEMP RISE COMPRESSOR AND SYSTEM FAULT DIAGNOSIS misdiagnosed To ensure that does no t happen the technician must determine if the compressor has problem The following procedures should help determine if the compressor has failed to suffers lack of dehumidify in cooling insufficient air flow while cooling may result in coil freeze up excessive dehumifification...

Page 27: ...to stop the motor On the single phase 208 230Volt units this should be from 197 to 253 Volts 1ˊ Consult the unit wiring diagram Confirm that all electrical wiring for the units is correct and that all wiring connections are right 3 Check for proper control voltage at the unit contractor coil If this voltage is inadequate or is not section for possible causes present refer to the wiring diagram or ...

Page 28: ...SURE OR IN A VACUUM 4 Causes Leaking liquid line valve leaking discharge check valve scroll compressors only Refrigerant is leaking from the condenser coil Causes Leaking liquid line valve leaking discharge check valve scroll compressors only leaking compressor valves ACTION Determine the causes and correct it This procedure checks the quality of the refrigerant by comparing the refrigerant pressu...

Page 29: ...bolts C Place the failed compressor on a smooth surface to remove the mounting grommets and sleeves for use with the new compressor D Prevent any contamination from entering the refrigerant lines 5 Conduct an acid test on the oil from the failed compressor A Secure a generous sample of oil from the failed compressor B Follow the oil test kit instructions to determine the degree of compressor burn ...

Page 30: ...l shock resulting in personal injury or death B Check that all wiring connections are tight C Verify that all fuses or circuit breakers are of the proper type and operational G Verify all ducts and air moving device are sized and operate properly Verify all the system are in correct position D Verify the air conditioning operates properly in cooling Verify the thermostat and subbase are correct an...

Page 31: ... device or filter drier Replace defective components Flowrator piston size too small Change to correct size piston High head Low vapor pressures Incorrect capillary tubes Change coil assembly Blocked outdoor coil Clear away leaves and other debris Refrigerant overcharge Correct system charge Condenser fan not running Repair or replace High head High or normal vapor pressures Air non condensibles o...

Page 32: ...tor may be have some difference from the real parts due to different types of fan motor the detailed information can refer to the fan motor nameplate Wiring diagram Outdoor Unit HC18D1VAR HC60D1VAR 32 Central Air Conditioner Model Cooling Only 13SEER units ...

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