Haier AU96NFTAHA - 3. Selection of refrigerant pipe

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3. Selection of refrigerant pipe
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Outdoor unit
First branch
Selection of dimension of refrigerant pipe
Outdoor unit Refrigerant pipe (main pipe)
between first branches
Same as the dimension of refrigerant pipe of
outdoor unit (Table 1)
Manifold pipe Refrigerant pipe between
manifold pipes (branch)
Selected as per the total capacity of the indoor
unit group connected to the lower reaches
(Table 2)
Manifold pipe Refrigerant pipe between
indoor unit groups (indoor refrigerant pipe)
Same as the dimension of refrigerant pipe
of indoor unit (Table 3). But when exceeding
25 m of first branch, the dimension of the gas
pipe should be increased 1 #.
Selection of manifold pipe
Selected as per the total capacity of the indoor
unit group connected to the lower reaches
(Table 4)
Selected as per the number of the unit connected
to the indoor unit group (Table 4)
(1). Table 1 Dimension of refrigerant pipe of outdoor unit
Model
Liquid sideGas side
AU55NFUAHA
*22.2 *9.52
AU96NFTAHA
*28.6 *12.7
When the corresponding length of the gas pipe before the first branch
exceeds 35 m, the length of the refrigerant pipe should be above
grade 1. (*19.0 *22).
(2). Table 2 Refrigerant pipes between manifold pipes
Total refrigerating amount of indoor unit group
Less than 38220Btu/h
*15.9
*19.05
*25.4
*9.52
*9.52
*12.7
(3). Table 3 Dimension of refrigerant pipe of indoor unit group
Capability
Type 07~16
*12.7 *6.35
Type 18~32
*15.88 *9.52
Type 36~45
*19.05 *9.52
(4). Table 4 Selection of manifold pipe
Item
Name
Total of capacity code
of indoor unit group
Model
Y-type manifold pipe
61KBtu/h not full FQG-B180
Above 61KBtu/h,126KBtu/h not full
FQG-B370
comb-shaped pipe
For branch 4
For branch 8
FQG-H3704
FQG-H3708
Max. total of capacity code of one system after manifold pipe is 6.0.
Liquid sideGas side
38220~61157Btu/h
61157~126137Btu/h
Liquid sideGas side
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