Haier 1UH071N1ERG [141/238] Smart power

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Cautions on handling the service port

• Always use a charge hose equipped with a valve depressor pin, since the service port is a Schrader type valve.

• After handling the service port, make sure to tighten the service port cap securely. For the tightening torque, refer

to the table below.

• Check for refrigerant leaks after tightening the service port cap.

7.5 Refrigerant piping

7.5.1 Piping diagram for single split

Liquid pipe ø9.52mm

Gas pipe ø15.88mm

1UH200W1ERK

Liquid pipe ø12.7mm

Gas pipe ø19.05mm

1UH250W1ERK

Liquid pipe ø12.7mm

Gas pipe ø22.2mm

7.5.3 Limitations for one way piping length and vertical height difference for single split

(between indoor and outdoor)

less than 30 m less than 30 m less than 50 m

Precautions for refrigerant piping

• Do not twist or crush piping.

• Be sure that no dust is mixed in piping.

• Bend piping with as wide angle as possible.

• Keep insulating both gas and liquid piping.

• Check are-connected area for gas leakage.