Installation Of Refrigerant Pipes; Allowable Length And Drop Height Of Connecting Pipe - Gree GWHD(48S)NM3DO Owner's Manual

6 Installation of Refrigerant Pipes

6.1 Allowable Length and Drop Height of Connecting Pipe

H2
H1
The sorts
Total length between outdoor unit and
Total length
Maximum
between indoor
allowable
units and BU
length
Between indoor unit and BU module
Between indoor unit and the 1st branch
Between outdoor and indoor units
Maximum
Between outdoor unit and BU modules
allowable
Between BU and BU modules
length
Between indoor and indoor units
Minimum Between outdoor and the 1st branch
allowable
Between BU and the branch
length
 BU module should be placed within the level between the outdoor unit and indoor unit.
Outdoor unit
L1
The 1st branch
BU 1
1A 1B
Indoor unit
A B
Fig. 8 (8 indoor units)
Table 3
BU modules
GWHD(48S)NM3DO
GWHD(56S)NM3DO
L2
The 2nd
L4
branch
BU 2
1C 2A 2B 2C
C A B
The pipes
L1+L2+L3+L4+L5
1A+1B+1C+2A+2B+2C+
3A+3B
1A;1B;1C;2A;2B;2C;3A;3B
L4+1B; L2+L5+2A;
L2+L3+3B
H1
H2
H3
H4
L1
L3; L4; L5
9
Super Free Match Series
L3
L5
H3
BU 3
C
3A
A
H4
B
Length （ m）
≤55
≤80
≤90
≤15
≤40
≤30
≤30
≤15
≤15
≥5
as possible
as short
3B