haier AB124FAAHA - Manual (Page 27)

25
Installation Procedure
Tubing Permissible Length & Height Difference
Please refer to the attached manual of outdoor units.
Tubing Materials & Specifications
Refrigerant Filling Amount
Add the refrigerant according to the installation instruction of outdoor unit. The addition of R22
refrigerant must be performed with a measure gage to ensure the specified amount while compressor
failure can be caused by filling too much or little refrigerant.
Connecting Procedures of Refrigerant Tubing
Proceed the flare tube connecting operation to connect all the refrigerant tubes.
Outer
Diameter of
Tubing (mm)
Mounting
Torque (N-m)
Increase mounting
Torque (N-m)
6.35
9.52
12.70
15.88
19.05
11.8(1.2kgf-m)
24.5(2.5kgf-m)
49.0(5.0kgf-m)
78.4(8.0kgf-m)
98.0(10.0kgf-m)
13.7(1.4kgf-m)
29.4(3.0kgf-m)
53.9(5.5kgf-m)
98.0(10.0kgf-m)
117.7(12.0kgf-m)
Dual wrenches must be used in the connection
of indoor unit tubing.
Mounting torque refers to the right table
Cutting and Enlarging
Cutting or enlarging pipes should be proceeded
by installation personnel according to the
operating criterion if the tube is too long or flare
opening is broken.
Vacuumizing
Vacuumize from the stop valve of outdoor units
with vacuum pump. Refrigerant sealed in indoor
machine is not allowed to use for vacuumization.
Open All Valves
Open all the valves of outdoor units. [NB: oil
balancing stop valve must be shut up completely
when connected one main unit.]
Checkup for Air Leakage
Check if there is any leakage at the connecting part
and bonnet with hydrophone or soapsuds.
Connecting
1. Connecting circular terminals:
Connecting
circular terminals:
The connecting method of circular terminal is
shown in the Fig. Take off the screw, connect it
to the terminal tier after heading it through the
ring at the end of the lead and then tighten it.
2
.
Connecting straight terminals:
The connection methods for the circular terminals
are shown as follows: loosen the screw before
putting the line terminal into the terminal tier,
tighten the screw and confirm it has been clamped
by pulling the line gently.
3
.
Pressing connecting line
After connecting line is completed, press the
connecting line with clips which should press on
the protective sleeve of the connecting line.
correct
pressing
terminal tier
pressing clip
wrong
pressing
Tubing
Material
Model
Tubing Size
(mm)
Gas pipe
Liquid pipe
AB184~
244FCAHA
AB424~
484FCAHA
12.70
6.35 9.52
15.88
9.52
19.05
AB094~
124FAAHA
Phosphor deoxybronze seamless pipe (TP
2
) for
air conditioner
wrench