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Installation & Operation Manual
Central Air Conditioner
Capacity 1.5 to 5 Tons
Models: HC1891VAR HC2491VAR
HC3091VAR HC3691VAR
HC4291VAR HC4891VAR
HC6091VAR
The information contained in this booklet is subject to change without notice.
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! WARNING These instructions are intended as an aid to qualified, licensed service personnel for proper installation, adjustment and operation of this unit. Read these instructions thoroughly before attempting installation or operation. Failure to follow these instructions may result in improper installation, adjustment, service or maintenance possibly resulting in fire, electrical shock, property damage, personal injury or death. This product is designed and manufactured to permit installation
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TABLE OF CONTENT 1.Introduction --------------------------------------------------------------------------------------- 1 2.Nomenclature for Model Number ------------------------------------------------------------- 1 3.Specification ------------------------------------------------------------------------------------- 1 4.Unit Inspection ----------------------------------------------------------------------------------- 3 5.Equipment Protection From Environment --------------------------------
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1.INTRODUCTION This manual contains the installation and operating instructions for your new air conditioner. Improper installation can result in unsatisfactory operation or dangerous conditions. Carefully read this manual and any instructions packaged with separate equipment required to make up the system prior to installation. Give this manual to the owner and explain its provisions. The owner should retain this manual for future reference. 2.NOMENCLATURE FOR MODEL NUMBER H Brand symbol
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Table 1: Model:HC18-6091VAR 2 MODLE HC6091VAR HC4891VAR HC4291VAR HC3691VAR HC3091VAR HC2491VAR HC1891VAR Uint Supply Voltage Normal Voltage Range Compressor Brand S Cooling Capacity (Btu/h) 56000 46000 40000 34000 28000 23500 18000 Minimum Circuit Amps 36 29 Max fuse or Max CKT. BKR. 60 45 40 35 30 25 20 ( HACR TYPE per NEC) Rated Load Amps 26.9 21.3 18.3 15.4 10.0 7.0 Compressor 149 130 130 92 73 60 43 Locked Running Amps Full Load Amps 1.43 1.40 1.40 1.40 1.
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4.UNIT INSPECTION This product has been inspected at the factory and released to the transportation agency without known damage. Inspect exterior of carton for evidence of rough handling in shipment. Unpack carefully. If damage is found, report immediately to the transportation agency. 5. EQUIPMENT PROTECTION FROM ENVIRONMENT The metal parts of the unit may be subject to rust or corrosion in adverse environmental conditions. This oxidation could shorten the unit life. Salt spray or mist in seaco
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Provide a level concrete slab. To prevent transmission of noise or vibration, slab should not be connected to building structure. Some sort of sound-absorbing material should be placed between the condenser and the slab. A good material to use is rubber and cork pad. 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. Theref
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OUTDOOR UNIT ADDITIONAL SUCTION LINE PITCH SUCTION LINE TOWARD OUTDOOR OIL TRAP FOR EACH 20 FOOT UNIT 1/2" FRO EVERY 10' OF LINE RISE OF PIPE INDOOR UNIT ABOVE OR LEVEL TO OUTDOOR UNIT 70' LIQUID LINE MAX. OUTDOOR UNIT SUCTION LINE OIL INDOOR UNIT TRAP WHEN INDOOR INDOOR UNIT UNIT IS 4 FEET OR LIQUID LINE MORE BELOW OUTDOOR UNIT A INDOOR UNIT BELOW OUTDOOR UNIT 6' B-1 INVERTED LOOP LIQUID LINE INDOOR UNIT 50' OUTDOOR UNIT MAX. SUCTION LINE Figure 3 B-2 Only refrigeration-grade copper piping (
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Refrigerant Line Sizing Check the following table (Table 2 ) for correct suction and liquid line sizes for any combination of the unit size and the maximum refrigerant line length. Refrigerant Line Length(Ft) 0-24 25-49 50-74 Unit Size Line Outside Diameter(In) (Ton) Suction Liquid Suction Liquid Suction Liquid Seer 9 9 9 9 9 9 9 Table 2:Refrigerant Line Sizing The factory charge is sufficient for 25 feet of standard liquid line. For longer or sh
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1.Tubing should be cut square. Make sure it is round and free of burrs at the connecting ends. Clean the tubing to prevent contamination from entering the system. 2.Make sure that both refrigerant stop valves at the outdoor unit are closed. 3.Push the tubing into the fitting until it stops. This prevents flux from getting into the system. 4.Remove the cap and Schrader valve core from the service port to protect the valve seals. 5.Wrap a wet rag around the valve stub before brazing. 6.Braze t
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1.Fully open both shutoff valves. System Superheat 2.Connect service gage manifold to the valve service Ambient Return Air Temperature ( F) ports, being sure to evacuate lines. Temperature At 65 70 75 80 85 3.Startup the system (Refer to the Section 7 - "System Condenser Inlet ( F) Startup"). Run system at least 10 minutes to allo 60 17 25 30 33 37 pressure to stabilize.
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The condensing unit rating plate and the tables of "Physical and Electrical Specifications / Outdoor Units" (Table 1 and 2) provide pertinent data necessary for the selection of proper size electrical service and over-current protection devices. Table 4 provides data on the minimum copper wire size as a function of supply wire length and circuit ampacity. Copper Wire Size - AWG (1% Voltage Drop) Supply Circuit
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8.OPERATION Most single phase units are operated without start relay or start capacitor. Such systems should be off for a minimum of 5 minutes before restarting to allow equalization of pressures. The thermostat should not be moved to cycle unit without waiting 5 minutes. To do so may cause the compressor to stop on an automatic open overload device or blow a fuse. Poor electrical service can cause nuisance tripping in overloads or blow fuses. The compressor has an internal overload protector. U
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Symptom Possible Cause Remedy Power off or loose electrical connection Make sure main switch is ON. Check and tighten all connections. Incorrect thermostat setting Set thermostat correctly No cooling Defective contactor Check for 24V at contactor coil.
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SW-1 SW-2 HC18-6091VAR Air Conditioner Wiring Diagram LINE VOLTAGE FACTORY STANDARD OPTIONAL 5 FIELD INSTALLED ELECTRIC HEATER KIT OPTIONAL BRK L1 LOW VOLTAGE OFM FL BK BK 6 RD FACTORY STANDARD RD BR BK FIELD INSTALLED BK FL R M TL OPTIONAL RD S BR RD L2 TL YL USE COPPER CONDUCTORS ONLY RD C S WARNING CABINET MUST BE PERMANENTLY GROUNDED 6 RD RD BK RD AND ALL WIRING TO CONFORM TO I.E.C.,N.E.C.,C.E.C., R BK PU C.L.C. AND LOCAL CODES AS APPLICABLE. BR RD PU BL WH BK REPLACEMENT WIRE MUST BE THE SA
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Made in P.R.C.
