BU Module
12
5
Installation of Refrigerant Pipes
5.1
Allowable Length and Drop Height of Connecting Pipe
Fig. 15 (8 indoor units)
Table 8
The sorts
The pipes
Length(m/feet)
Maximum
allowable
length
Total length between outdoor unit and BU
modules
L1+L2+L3+L4+L5
≤
55(181)
Total length
between indoor
units and BU
GWHD(48S)ND3CO
1A+1B+1C+2A+2B+2C+
3A+3B
≤
80(263)
GWHD(56S)ND3CO
≤
90(295)
Between indoor unit and BU module
1A;1B;1C;2A;2B;2C;3A;3B
≤
15(49)
Between indoor unit and the 1st branch
L4+1B;L2+L5+2A;
L2+L3+3B
≤
40(131)
Maximum
allowable
length
Between outdoor and indoor units
H1
≤
30(99)
Between outdoor units and BU modules
H2
≤
30(99)
Between BU and BU modules
H3
≤
15(49)
Between indoor and indoor units
H4
≤
15(49)
Minimum
allowable
length
Between outdoor and the 1st branch
L1
≥
5(16)
Between BU and the branch
L3;L4;L5
as possible as
short
NOTICE!
BU module should be placed within the level between the outdoor unit and indoor
unit.
5.2
Installation of Piping Adapter (FXA2A-D; FXA3A-D and FXB5A-D)
If the piping connection size of BU module does not match with that of the outdoor unit and
indoor units, it should prevail with the piping connection size of the outdoor unit and indoor units.
Содержание FXA2A-D
Страница 4: ......