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6 Installation of Refrigerant Pipes
6.1 Allowable Length and Drop Height of Connecting Pipe
Total length between outdoor unit and BU
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 units and BU modules
allowable
Between BU and BU modules
length
Between indoor and indoor units
Between outdoor and the 1st branch
Minimum
allowable
Between BU and the branch
length
NOTICE!
BU module should be placed within the level between the outdoor unit and indoor
unit.
Fig. 8 (8 indoor units)
T
e h
o s
s t r
modules
MULTIU48HP230V1BO
GWHD(48S)HD3DO
Table 3
T
e h
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
L3;L4;L5
9
Super Free Match Series
p
p i
s e
L
n e
t g
≤55(181)
≤80(263)
≤15(49)
≤40(131)
H1
≤30(99)
H2
≤30(99)
H3
≤15(49)
H4
≤15(49)
L1
as possible as
( h
m
f /
e e
) t
≥5(16)
short
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