Sharp AE-X28NCJ Installation of Outdoor Unit, Electric Wiring, Air Purging and Leakage Test

Installation of Outdoor Unit

Electric Wiring

(1)Remove the handle on the right side plate of outdoor unit.

(2)Take off wire cord anchorage. Connect and fix power connection cord to the terminal board.

(3)Fix the power connection cord with wire clamps and then connect the corresponding connector.

(4)Confirm if the wire has been fixed properly.

(5)Reinstall the handle.

Note: Incorrect wiring may cause malfunction of spare part. Please follow recommended instructions.

Air Purging and Leakage Test

(1)Connect charging hose of manifold valve to charge end of low pressure valve (both high/low pressure valves must be tightly shut).

(2)Connect joint of charging hose to vacuum pump.

(3)Fully open the handle of Lo manifold valve.

(4)Open the vacuum pump for vacuumization. At the beginning,

slightly loosen joint nut of low pressure valve to check if there is air coming inside. (If noise of vacuum pump has been changed, the reading of multimeter is 0) Then tighten the nut.

(5)Keep vacuuming for more than 15mins and make sure the reading of multi-meter is -1.0 x 10 pa (-76cmHg).

(6)Fully open high/low pressure valves.

(7)Remove charging hose from charging end of low pressure valve.

(8)Tighten lid of low pressure valve. (As shown in Fig.10)

Outdoor Condensate Drainage (only for Heat pump unit)

During heating operation, the condensate and defrosting water should be drained out reliably through the drain hose.

Install the outdoor drain connector in a Ø 25 hole or Ø 42 hole on the base plate and attach the drain hose to the connector so that the waste water formed in the outdoor unit can be drained out .The hole diameter 25 or 42 must be plugged. Whether to plug other holes will be determined by the dealers according to actual conditions.

(The figures in this manual may be different with the material objects, please refer to the material objects for reference)

Important Notice: All models are pre-charged with R410A refrigerant for a standard pipe run of 5 to 8 meters between outdoor and indoor unit.

For pipe runs over 8 meters additional R410A will need to be added as per the table below.

For pipe runs less than 5 meters the total charge will need to be reduced as per the table below.

Note: The only method when reducing the refrigerant charge of R410A is to reclaim the entire refrigerant and then to weigh in a re-calculated charge of R410A based on the reduced pipe run.

Pipe length	5~8m：	less than 5m：	more than 8m：
9K, 12K NJC	No change	reduce 20g/m	Add 20g/m
18K, 24k, 28k NJC	No change	reduce 50g/m	Add 50g/m

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