Haier 0010573573 Pipe cutting and expanding, Pipe expansion dimensions as follows, Requirement

Installation Procedure

Allowable pipe length and drop

These parameters differ according to the outdoor unit. See the instruction manual attached with the outdoor unit for details.

Supplementary refrigerant

The refrigerant supplementation shall be as specified in the installation instructions

attached with the outdoor unit. The added refrigerant shall be R22.
The adding procedure shall be aided with a measuring meter	A
for a specified amount of supplemented refrigerant
Requirement
Overfilling or underfilling of refrigerant will cause compressor	Pipe expander
fault. The amount of the added refrigerant shall be as specified
in the instructions.
Connection of refrigerant pipe
Conduct flared connection work to connect all refrigerant pipes.

Pipe cutting and expanding

If the pipe is too long or the flare is damaged, it needs to be cut or expanded.

1. Pipe cutting 2. Removing burrs 3.Insertion nut 4. Pipe expansion

Pipe expansion dimensions as follows:

Pipe diameter ÿ	Size A (mm)
6.35 mm (1/4")	0.8 ~ 1.5
9.52 mm (3/8")	1.0 ~ 1.8
12.7 mm (1/2")	1.2 ~ 2.0
15.88 mm (5/8")	1.4 ~2.2

Correct Incorrect

Slope Damage Bur Partial Overlong

The connection of indoor unit pipes must use double spanners.

The installing torque shall be as given in the following table.

Connecting pipe	Installing torque	Increased installing
O.D.(mm)	(N-m)	torque (N-m)
ÿ 6.35	11.8 (1.2kgf-m)	13.7 (1.4 kgf-m)
ÿ 9.52	24.5 (2.5kgf-m)	29.4 (3.0 kgf-m)
ÿ 12.70	49.0 (5.0 kgf-m)	53.9 (5.5 kgf-m)	Double-spanner
ÿ 15.88	78.4 (8.0 kgf-m)	98.0 (10.0 kgf-m)
			operation

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