Haier AB072MRERA - Page 553

545
High Wall Type
Indoor Unit (N platform)
When the mounting plate is xed side bar and lintel
2. Remove 2 gaskets under the cross-ow fan. (used for
AS162/182/242MN/FERA)
3. Clean the burr on the surface of fracture to avoid the power
wire from being scratched after removing the virtual opening of the
outgoing line slot on the case by hands in indoor power-on process.
Fix to side bar and lintel a mounting bar, which is separately sold, and then fasten the plate to the xed mounting
bar.
Refer to the previous article, "When the mounting plate is rst xed" for the position of wall hole.
Add the refrigerant according to the installation instruction of outdoor unit. The addition of R410A refrigerant must
be performed with a measure gage to ensure the specied amount or compressor failure can be caused by lling
too much or little refrigerant.
Proceed the are tube connecting operation to connect all the refrigerant tubes.
Tubing Permissible Length & Height Difference
Please refer to the attached manual of outdoor units.
Tubing Materials & Specications
Model AS05~09 AS12~18 AS24~30
Tubing
Size (mm)
Gas pipe φ9.52 φ12.7 φ15.88
Liquid pipe φ6.35 φ6.35 φ9.52
Tubing
Material
Phosphor deoxy bronze seamless pipe (TP2) for air conditioner
Refrigerant Filling Amount
Connecting Procedures of Refrigerant Tubing
W
W J
N
R
Dual wrenches must be used in the connection of
indoor unit tubing.
Mounting torque refers to the
right table
Outer
Diameter of
Tubing (mm)
Mounting
Torque (N-m)
Increase
mounting
Torque (N-m)
φ6.35 11.8(1.2kgf-m) 13.7(1.4kgf-m)
φ9.52 24.5(2.5kgf-m) 29.4(3.0kgf-m)
φ12.70 49.0(5.0kgf-m) 53.9(5.5kgf-m)
φ15.88 78.4(8.0kgf-m) 98.0(10.0kgf-m)
φ19.05 98.0(10.0kgf-m) 117.7(12.0kgf-m)