AWA 28K Installation Instructions Manual Download

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Set the both 3-way(liquid side) and 3-way(gas side) valves to open position with the
Hexagonal wrench for the unit operation.

Checking a gas leakage for the left piping.

• Connect the manifold gauge to the service port of 3-way(gas side) valve.

Measure the pressure.

• Keep it for 5 - 10 minutes.

Ensure if the pressure indicated on the gauge is as same as that of measured at first time.

Closed

Indoor unit

Outdoor unit

Liquid side

Gas side

Summary of Contents for 28K

Page 1: ...ely before installing the product When the power cable is wanted to replace replacement work shall be performed by authorized personnel only Installation work must be performed in accordance with national wiring standards by authorized personnel only Applied Model 1 28K 30K Btu h 2 44K 50K Btu h 3 80K Btu h ...

Page 2: ... 4 Piping of Indoor Unit 9 1 Preparation of piping 2 Connection of piping 3 Precautions in bending 5 Connecting the Cable to Indoor Unit 11 6 Connecting piping and the Cable to Outdoor Unit 12 1 Connecting the piping to the outdoor unit 2 Connecting the cable to the outdoor unit 7 Power Supply and Wiring 14 1 Power spply 2 Wiring 8 Air Purging of the Piping and Indoor Unit 15 9 Checking the Draina...

Page 3: ...and outdoor units securely and attach the wires firmly to the terminal board connecting sections so the stress of the wires is not applied to the sections Incomplete installation could cause injury due to fire electric shock the unit falling or a leakage of water Consult the dealer from whom you purchased the unit or special installer Incomplete installation could cause a personal injury due to fi...

Page 4: ...ainage can be easily obtained A place where noise prevention is taken into consideration Do not install the unit near the door way Ensure the spaces indicated by arrows from the wall ceiling fence or other obstacles If an awning is built over the unit to prevent direct sunlight or rain exposure be careful that heat radiation from the condenser is not restricted There should not be any animals or p...

Page 5: ... 50Hz 60Hz 80K BTU h 50Hz 60Hz PIPE SIZE MODEL GASSIDE LIQUIDSIDE Max Length A m Max Elevation B m A B Indoor unit Outdoor unit 5 8 3 8 25 20 5 8 3 8 25 20 3 4 5 8 30 25 30 25 1 5 8 40 25 1 5 8 40 25 Heat Pump Model 28K 30K BTU h 50Hz 60Hz 44K 50K BTU h 50Hz 60Hz 3ø 3 4 3 8 1ø 3 4 5 8 80K BTU h 50Hz 60Hz PIPE SIZE MODEL GASSIDE LIQUIDSIDE Max Length A m Max Elevation B m ...

Page 6: ...n transmitted to the building mount the rubber underneath the outdoor unit 4 Refrigerant amount Before shipment this air conditioner is filled with the rated amount of refrigerant including additional amount required for air purging subject to 5m piping length The rated amount of refrigerant is indicated on the name plate But when the piping length exceeds 5 meters additional charge is required ac...

Page 7: ...gs of the indoor unit 8 Check a gas leakage of the connecting part of the pipings 9 Air purging of the piping and indoor unit The air which contains moisture and which remains in the refrigeration cycle may cause a malfunction on the compressor 10 Open the 3 way liquid side and 3 way gas side valves 11 Form the pipings To prevent heat loss and sweat 12 Checking the drainage indoor unit To ensure i...

Page 8: ... Bombe Freon 22 Gas charge Air purge Cleaning the pipe 12 Spanner To tighten the connecting parts of the pipings 13 Monkey spanner 14 Driver 15 Benchi 150mm Cutting the wires 16 Tapeline To measure the length 17 Core drill To make holes through the concrete wall and blocks 18 Voltmeter Amperemeter Clampmeter To measure the current and voltage 19 Insulation resistance tester To measure the insulati...

Page 9: ...the pipes Insert the flare nuts mounted on the connection ports of both indoor and outdoor unit onto the copper pipes Some refrigerant gas may leak when the flare nuts are removed from the indoor unit as some gas is charged to prevent the inside of the pipe from rusting Fit the copper pipe end into the Bar of flare tool about 0 0 5mm higher See illustaration Flare the pipe ends ŒTape the flaring p...

Page 10: ...e bending process to prevent the tubing from cracking or crushing ØKeep in mind that the bending part should not be cracked and make the radius R as long as possible Refer to Fig 2 PIPE SIZE TORQUE 3 8 4 2 Kg m 1 2 5 5 Kg m 5 8 5 5 Kg m 3 4 6 5 Kg m Indoor unit tubing Flare nut Pipings Torque wrench Spanner Spring R70mm Fig 1 Fig 2 R 2 Connection of piping Move the indoor tubing and drain hose to ...

Page 11: ... inlet grille manually ŁOpen the control cover with Driver ØConnect the supplied cables to the connector in the control box Method A Heat pump Model only ŒConnet the supplied cables to the connector in the control box Method B Cooling Model only ºSecure the control cover to the original position with the screw Close the inlet grille Knock out holes ...

Page 12: ...iquid side piping Torque wrench Outdoor unit 1 L 2 N 1 L 2 N 3 4 5 1 28K 30K HEAT PUMP MODEL With Electric Heater GREEN YELLOW CLAMP Ø12 3 TO INDOOR UNIT MAGNETIC CONTACTOR FOR HEATER TO INDOOR UNIT CONNECTOR POWER SUPPLY BLUE BLUE BROWN BROWN BROWN GREEN YELLOW GREEN YELLOW S N R T 1 L 2 N 3 4 5 2 44K 50K HEAT PUMP MODEL With Electric Heater GREEN YELLOW CLAMP Ø16 0 TO INDOOR UNIT MAGNETIC CONTAC...

Page 13: ...L 2 N 1 L 2 N 3 4 5 4 44K 50K COOLING MODEL GREEN YELLOW CLAMP Ø10 7 TO INDOOR UNIT CONNECTOR POWER SUPPLY BLUE BROWN BLACK GREEN YELLOW GREEN YELLOW CLAMP Ø16 0 CLAMP Ø16 0 R T S N 1 L 2 N 3 4 5 5 80K COOLING ONLY MODEL GREEN YELLOW TO INDOOR UNIT CONNECTOR POWER SUPPLY WHITE RED BLACK R T S N 1 2 3 4 5 6 7 8 9 10 6 80K HEAT PUMP MODEL GREEN YELLOW GREEN YELLOW TO INDOOR UNIT CONNECTOR POWER SUPP...

Page 14: ... must be fitted for service operations Ø The screws which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could give rise to burn out of the wires ŒSee to it that the starting voltage is maintained at mor...

Page 15: ...y gas side valves Ł Remove the service port cap from the 3 way gas side valve ØTo open the valve turn the valve stem of 3 way liquid side valve counter clockwise approx 90 and hold it there for ten seconds then close it ŒCheck a gas leakage of the connecting portion of the pipings ºTo open 3 way liquid side valve again turn the valve stem counter clockwise until it stops To purge the air push the ...

Page 16: ...on Checking a gas leakage for the left piping Connect the manifold gauge to the service port of 3 way gas side valve Measure the pressure Keep it for 5 10 minutes Ensure if the pressure indicated on the gauge is as same as that of measured at first time CLOSE CLOSE Closed Closed Indoor unit Outdoor unit Liquid side Gas side ...

Page 17: ... 1 Checking the Drainage Remove the inlet grille with your hands as shown right and left and pull in the direction indicated by the arrow Ł Check the drainage Pour a glass of water into the drain pan Ensure if water flows drain hose of indoor unit ...

Page 18: ...e room form a trap and tape the piping Ø Fix the piping onto the wall with saddle or bracket When using the drain elbow hose use a mount of 3cm of higher ŁIn the cold district 0 c continued for 2 3 day the drain water is frozen and the fan fail to function do not use the drain elbow In case of the outdoor unit is installed below position of the indoor unit In case of the outdoor unit is installed ...

Page 19: ...heckings prepare the running test as follows Connect compound gauges to the check joints at discharge and suction sides of the compressor ŁTurn all switches OFF ØTurn the main switch ON Running test should be accomplished as follows Set operation switch at FAN and the fan will start Check to ensure that the fan sounds normal ŁNext set it at COOL and the compressor will start Check to ensure that t...

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AWA 28K, Installation Instructions Manual

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