Table of Contents
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Central Air Conditioning
SERVICE MANUAL
●Features
Efficient performance and economical operation
Benchmark hermetic compressor design
Haier Hi-Efficiency aluminium fin and copper tube design
Durable construction
Quick, easy installation and service
Condensing Unit, Value Series HC13-D2
Powder coated full metal jacket
Manual code: SYJS-013-07REV.0
Models
HC18D2VAR
HC24D2VAR
HC30D2VAR
HC36D2VAR
HC42D2VAR
Edition: 2007-04-02
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Table of Contents
Troubleshooting
Related Manuals for Haier HC18D2VAR
Summary of Contents for Haier HC18D2VAR
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Page 1: Service Manual
HC36D2VAR HC42D2VAR ●Features Efficient performance and economical operation Benchmark hermetic compressor design Haier Hi-Efficiency aluminium fin and copper tube design Durable construction Quick, easy installation and service Condensing Unit, Value Series HC13-D2 Powder coated full metal jacket Manual code: SYJS-013-07REV.0... -
Page 2: Table Of Contents
Central Air Conditioning Model: Condensing Unit, HC13-D2 CONTENTS 1. DESCRIPTION OF PRODUCTS & FEATURES……………………...3 2. PHYSICAL AND ELECTRICAL SPECIFICATIONS………………..5 3. SAFETY PRECAUTION…………………………………………….…...8 4. SYSTEM COMPONENTS AND FUNCTIONS ………………………..8 5. ELECTRICAL CONTROL DEVICES…………………………….……..10 6. APPLICATION…………………..……………………………………..…11 7. REFRIGERANT DIAGRAM ………………………………..…….……..13 8. INSTALLATION INSTRUCTIONS………………………..…………...13 9. -
Page 3: Description Of Products & Features
1.2 NOMENCLATURE FOR MODEL NUMBER Model number explanation---indoor unit Nominal Electric Electric Design Airflow Unit Efficiency Haier Blower unit capacity in Continuation heater Designation code series configuration Width(in.) (1000) Btu/h Y:575V-3Ph-60Hz;... - Page 4 Central Air Conditioning Model: Condensing Unit, HC13-D2 CABINETS: Constructed of powder painted galvanized steel to provide a durable finish and protection for the outdoor coil. Fig.1-1 FAN GUARD AND MOTOR BRACKET: Welded powder coated guard with independent rod and band motor bracket, unit top has a deep draw fan venturi for efficient air flow.
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Page 5: Physical And Electrical Specifications
Central Air Conditioning Model: Con densin g U nit, HC13- D2 2. PHYSICAL AND ELECTRICAL SPECIFICATIONS Specifications Subject to Change without Prior Notice Model Number HC18D2VAR HC24D2VAR HC30D2VAR HC36D2VAR HC42D2VAR Comments 1.5-Ton Outdoor AC 2-Ton Outdoor AC 2.5-Ton Outdoor AC 3-Ton Outdoor AC 3.5-Ton Outdoor AC... - Page 6 Optional Optional Optional Optional Optional Features Lug. Galvanized Steel Cabinet Coil Design Haier Enhanced Coil Haier Enhanced Coil Haier Enhanced Coil Haier Enhanced Coil Haier Enhanced Coil Fully Enclosed Motor Removable Top Grill Assembly Elevated Base Pan High and Low Pressure Switches...
- Page 7 Dimensions Depth 26 7/8 26 7/8 26 7/8 Cubic Volume (Cu. Ft) 7.66 8.73 10.45 11.92 13.38 Warranty(Haier Brand Only) Parts Compressor Carry in/In Home In Home In Home In Home In Home In Home Noise level dB(A) Notes: 1- 120-second fan delay for air handler...
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Page 8: Safety Precaution
Central Air Conditioning Model: Condensing Unit, HC13-D2 3. SAFETY PRECAUTIONS CAUTION : please read all instructions prior to installing, operating, maintaining or repairing the product. WARNING: THE MANUFACTURER’S WARRANTY DOES NOT COVER DAMAGE TO CAUSED BY THE USE OF ANSUTHORIZED COMPONENTS OR ACCESSORIES, THE USE OF SUCH UNAUTHORIZED COMPONENTS OR ACCESSORIES MAY ENDANGER LIFE AND PROPERTY. - Page 9 Central Air Conditioning Model: Condensing Unit, HC13-D2 Both compressor types are protected internally against over-current and over-temperature conditions. Some scroll compressors have an additional thermostat mounted externally in series electrically with the contactor coil. FAN AND BLOWER MOTORS (Fig. 4-2 and Fig. 4-3) The outdoor component of split system contains an fan motor.
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Page 10: Electrical Control Devices
Central Air Conditioning Model: Condensing Unit, HC13-D2 REFRIGERANT CIRCUIT (Fig. 4-5) All 13SEER units outdoor coils are multi-circuit. Refrigerent gas or liquid is uniformly distributed to from 4 to 10 circuits to improve heat transfer and reduce capacity losses due to pressure drops. Fig.4-5 5.ELECTRICAL CONTROL DEVICES THERMOSTATS... -
Page 11: Application
Central Air Conditioning Model: Condensing Unit, HC13-D2 Compressor delay PCB Fig.5-1 START KITS(OPTIONAL) This special relay uses the EMF generated by the compressor start windings to take a start capacitor out of the circuit. The relay and its companion capacitor can start the compressor at low voltages and against higher pressure, such as those caused by non-bleed port expansion valves. -
Page 12: Unit Dimensions
Indoor Piston Size speed Outdoor Indoor Capacity SEER CFM HC18D2VAR HB2400VD1M20 057 17000 13 670 19210 18649 18020 17000 16745 16490 16235 15980 HC24D2VAR HB2400VD1M20 062 23000 13 900 25990 25231 24380 23000 22655 22310 21965 21620 HC30D2VAR HB3600VD1M22 071... -
Page 13: Refrigerant Diagram
Central Air Conditioning Model: Condensing Unit, HC13-D2 Air leakage of only 3% in a return duct can cause a 5% loss in system capacity. 3% leakage on a three ton system is only 30 CFM. Two or three unsealed joints can cause a leak of this size. Sealing the return and supply ducts result in full system capacity and lower operating costs. -
Page 14: Equipment Protection From Environment
Central Air Conditioning Model: Condensing Unit, HC13-D2 The manufacturer's warranty does not cover any damage failure caused by the air conditioning system. You should be aware that the use of unauthorized components, accessories or devices may adversely affect the operation of the air conditioner and may also endanger life and property. The manufacturer disclaims any responsibility for loss or injury due to the use of such unauthorized components, accessories or devices. -
Page 15: Unit Clearances
Central Air Conditioning Model: Condensing Unit, HC13-D2 For rooftop application, make sure the building construction can support the weight and that proper consideration is given to the weather-tight integrity of the roof. The condensing unit contains moving parts and can vibrate, so, sound transmission is also a consideration in rooftop applications. ! WARNING - Install the unit securely in a place that can bear the weight of the unit. -
Page 16: Line Insulation
Central Air Conditioning Model: Condensing Unit, HC13-D2 Figure C Fi g . Only refrigeration-grade copper piping (dehydrated and sealed) should be used. Take extreme care to keep the refrigerant tubing clean and dry prior to and during installation. If there is any doubt on the cleaness of the piping, blow out the line with dry nitrogen to remove any chips or debris before connection are made. - Page 17 Central Air Conditioning Model: Condensing Unit, HC13-D2 Refrigerant Line Sizing Refrigerant Line Length (Ft) Unit Size 0 – 24 25 – 49 50 – 74 (Ton) Line Outside Diameter (In) Suction Liquid Suction Liquid Suction Liquid 11/8 11/8 11/8 11/8 11/8 11/8 Table 8-1...
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Page 18: Charging The System
Central Air Conditioning Model: Condensing Unit, HC13-D2 8.Pressurize the lines to 150 psi maximum with dry nitrogen. Check for leaks at all joints with liquid detergent. If a leak is found, repair it after removing the nitrogen. Repeat the process and re-check. 9.Do not purge the lines with refrigerant. -
Page 19: Electrical Wiring
Central Air Conditioning Model: Condensing Unit, HC13-D2 System Superheat Ambient Return Air Temperature ( ) ℉ Temperature At Condenser Inlet ℉ Table 8-2:System charging table by superheat 8.8 ELECTRICAL WIRING ! WARNING A means of strain relief must be installed to this appliance at the electrical service entrance. The interconnecting wires between indoor and outdoor units must be in accordance with the national electric code and all code regulations. -
Page 20: System Startup
Central Air Conditioning Model: Condensing Unit, HC13-D2 Copper Wire Size - AWG (1% Voltage Drop) Supply Circuit Supply Wire Length - Ft Ampacity Table8-3: Minimum Wire Size Based on N.E.C. for 60 C Type Copper Conductors Below 100 Ampacity. The installer must be familiar with the location of the over-current protection, properly size for this this application and the proper procedure for disconnecting power service to the unit. -
Page 21: Maintenance Instructions
Central Air Conditioning Model: Condensing Unit, HC13-D2 refrigerant liquid line. 5. At the end of the liquid line, the refrigerant passes through a fixed metering device, reducing pressure and temperature . The liquid, under reduced pressure, then enters the indoor coil surface it expands and absorbs heat from the indoor air passing over the finned surface. -
Page 22: Service And Troubleshooting
Central Air Conditioning Model: Condensing Unit, HC13-D2 NEVER USE A WEATHER COVER OVER THE OUTDOOR UNIT. The unit is designed to operate outdoors. A cover traps moisture in the unit causing rust and corrosion .There is the added danger of starting the system with the cover on. - Page 23 Central Air Conditioning Model: Condensing Unit, HC13-D2 6. An electronic leak detector or bottle of soap suds. 7. A micron meter (not shown) 8. A vacuum pump capable of pulling to 1000 microns; 9. Refrigerant recovery /recycling equipment vacuum pump Fig.9-1 Before beginning any troubleshooting procedure, complete the following installation checklist.
- Page 24 Central Air Conditioning Model: Condensing Unit, HC13-D2 …………. No evidence of refrigerant leaks …………. Condensate line piped with trap and vent …………..Horizontal drain pan installed in horizontal applications …………. Auxiliary drain pan installed in horizontal applications …………. Auxiliary condensate line installed in horizontal application CAPACITOR ELECTRICAL CHECK WARNING: ANY CAPACITOR SHOWING SIGNS OF LEAKAGE OR BULDGING MUST BE REPLACED IMMEDIATEDLY.
- Page 25 Central Air Conditioning Model: Condensing Unit, HC13-D2 Motor Fig. 9-3 ELECTRICAL CHECK TO TEST FAN MOTOR: 1. Be sure power is off to the motor. 2. Disconnect the motor wires. 3. Place one ohmmeter lead on common and the other on start .The meter should show continuity. 4.
- Page 26 Central Air Conditioning Model: Condensing Unit, HC13-D2 will reveal this problem. With sealed relays, use an ohmmeter to test for open or closed contacts. Fig. 9-5 ELECTRICAL CHECKS 1. BE SURE ALL THE ELECTRICAL POWER IS OFF TO THE COMPONENT BEING CHECKED.
- Page 27 Central Air Conditioning Model: Condensing Unit, HC13-D2 COMPRESSOR ELECTRICAL CHECKS Single-phase compressors use permanent split capacitor motors. There are two windings that connect at a common point at the “common” wiring terminal. The two windings are called “start” and "run". The start winding has the higher resistance and is connected in series with the capacitor.
- Page 28 Central Air Conditioning Model: Condensing Unit, HC13-D2 OPEN COMPRESSOR START WINDING---REPLACE THE COMPRESSOR . 7.The resistance from one winding terminal to any other terminal should be the same with three phase compressors. NOTE: on larger 208/230 volt compressors the ohm values could be as low as 0.10 ohms, THIS IS NOT A SHORTED WINDING .A winding is open if resistance measured is infinite(∞).
- Page 29 Central Air Conditioning Model: Condensing Unit, HC13-D2 entering and leaving air temperature with accurate thermometers. Run the condensing fan until the leaving air temperature equals to the entering air temperature. This is now the refrigerant temperature . Compare the observed refrigerant pressure shown on the high pressure gauge to its associated pressure on a temperature –pressure conversion chart.
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Page 30: Troubleshooting Guide
Central Air Conditioning Model: Condensing Unit, HC13-D2 Warnings: TACK APPROPRIATE STEPS TO KEEP CONTAMINATIONS OUT OF THE LINES, WHILE THESE LINE ARE OPEN TO ATMOSPHERE. USE A OFMINIMUM 5% SILVER FOR COPPER TO COPPER CONNECTIONS. USE A OF MINIMUM 35% SILVER FOR COPPER TO STEEL CONNECTIONS. WHEN BRAZING, PURGE DRY NITROGEN THROUGH THE LINES TO PREVENT THE FORMATION OF OXIDES. - Page 31 Central Air Conditioning Model: Condensing Unit, HC13-D2 furnace trap operation of condensate pump. Condenser fan and AC Contact not connected to the Re-connect the power supply wire, and compressor don’t run power supply wire or not tightly fasten t ightly fasten. The outdoor power supply main circuit Reset the power supply switch to "...
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Page 32: Wiring Diagrams
11. WIRING DIAGRAM Note: The diagram wiring of the fan motor 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 (HC18D2VAR—HC42D2VAR) - Page 33 Central Air Conditioning Model: Condensing Unit, HC13-D2 Sincere Forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com...