The connection of indoor unit pipes must use double spanners.
The installing torque shall be as given in the following table.
Double-spanner
operation
Pipe expansion dimensions as follows:
Pipe expander
A
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
Pipe diameter
?
Size A (mm)
Connecting pipe
O.D.(mm)
? 6.35
? 9.52
? 12.70
Installing torque
(N-m)
11.8 (1.2kgf-m)
24.5 (2.5kgf-m)
49.0 (5.0 kgf-m)
Increased installing
torque (N-m)
13.7 (1.4 kgf-m)
29.4 (3.0 kgf-m)
53.9 (5.5 kgf-m)
Slope Damage Bur Partial Overlong
Correct
Incorrect
4.Trial operation
The person who has completed this installation shall be requested to conduct a test operation for
check:
Is the temperature adjuster working normally?
Does the location for installation conform to requirements?
Winding up with Protective Plastic Tape.The connection pipes,drain pipe, and the connection
wires shall be wound up with PVC tape.
The connection pipes shall also be wound up with insulating material to preserve
the temperature. The airing direction shall be from bottom to top.
NOTE!
1 Wiring method of ring terminal
For connecting line which end is a ring,its wiring method as shown in the right figure: remove
wiring screw and pass it through the end ring of connecting line,then connect it to the terminal
block and tighten screw.
Wiring methods:
-70-
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