Haier No. 0010572410 Outline piping, Piping size, Precautions for refrigerant piping

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INSTALLATION MANUAL FOR OUTDOOR UNIT

4.Refrigerant piping

(1)Outline piping

Flare connection

Indoor unit

(2) Piping size

Gas piping

12.7(1/2")x1.0mm

Liquid piping

6.35(1/4")x0.8mm

Liquid

3-way valve

pipe

 

 

Outdoor

 

unit

Gas pipe

3-way valve

 

 

Flare connection

Install the removed flared nuts to the pipes to be connected, then flare the pipes.

90 + 0.5

(3)Limitations for one way piping length and vertical height One way piping length: less than

15m.

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 flare-connected area for gas leakage.

(4) Piping connection

Connecting method

Apply refrigerant oil at half union and flare nut.

To bend a pipe, give the roundness as large as possible not to crash the pipe. When connecting pipe, hold the pipe centre to centre then screw nut on by hand, refer to Fig.

Be careful not to let foreign matters, such as sands enter the pipe.

Forced fastening without centering may damage the threads and cause a gas leakage.

Pipe dia

Fastening torque

 

 

Liquid pipe 6.35mm(1/4")

11.8N.m

Gas pipe 12.7mm(1/2")

49.0N.m

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Contents Duct Type AIR Conditioning Table of Contents Disposal of the old air conditioner Safety Precautions Make sure the system is groundedDo not operate the system while Applicable ambient temperature range Machine is adaptive in following situationParts and Functions Cooling or heating is not sufficient MalfunctionUnit fails to start Cooling is not sufficientFollowings are not malfunction Shuru ShuruCare and Maintenance Points to observeWhen heating is started HOT KEEPis operated in the following casesInstallation Manual for Outdoor Unit Installation placeOpen space requirement around the unit Installation where the area with strong windsInstallation Piping size Precautions for refrigerant pipingOutline piping Piping connectionPurging method the refrigerant is R407C To use vacuum pumpInstallation Manual for Indoor Unit Avoid installation and use at those places listed below Preparation of indoor unitFigure of installation dimension unit mm Preparation for suspending the unitUse embedded parts and foot screw, etc to mount Original cement panel Connection pipe Liquid side Installation Manual for Electric Wiring Electric wiring

No. 0010572410 specifications

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