Haier AP48KN1EAA Service Manual page 23

Commercial air conditioning
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1. Pipe cutting and flaring
Be sure to carry out deburring after pipe cutting with a pipe cutter.
Insert flaring tool to make a flare.
Correct
Lean
Pipe dia.
Liquid pipe
9.52mm (3/8")
Liquid pipe
12.7mm (1/2")
Gas pipe
19.05mm (3/4")
2.Installation inspection and test run:
Please operate unit according to this Manual.
Items to be checked during test run. Please made a " "in " "
Are there any gas leakage?
How is insulation at piping connection carried out?
Are electric wires of indoor and outdoor unit firmly inserted into terminal block?
Is electric wiring of indoor and outdoor securely fixed?
Is draminage securely carried out?
Is earth line ( grounding ) securely connected?
Is power supply voltage abided by the code?
Is there any noise?
Is control display normal?
Is cooling operation normal?
Is room temp. regulator normal?
Incorrect
Damaged flare
Crack
Dimension A(mm)
1.0 ~ 1.8
1.2 ~ 2.0
1.4 ~ 2.2
Single Split
Partial
Too outside
A
21
Flaring tool

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