28
Installation procedure
Max. length
Pipe in above figure
Single way total pipe length
300
L1+L2+ L3+ L4+ L5+ L6+ L7+L8+
L9+ L10+ L11+ L12+ L13+ L14+ L15
Single way max. pipe equivalent length
150
L1+ L3+ L5+ L7+ L14+ L13
Max. pipe length after 1st branch pipe
40
L7+L13+L14
Main pipe length
80
L5
Height difference between indoors
15
--
Height difference between outdoors
5
--
Pipe length between outdoors
10
L1, L2, L3
Oil equalization pipe connection
16~24HP
26~36HP
Oil equalization pipe Ø9.52mm
Oil equalization pipe Ø9.52mm
T-shape pipe
2. Allowable piping length and height difference between indoor and outdoor
When the outdoor unit is installed above the indoor units, the maximum height should be 50m
Max. drop:5m
Outdoor 1
Outdoor 1
Outdoor 2
Outdoor 3
L2
L3
L4
L5
L6
L8
A
B
C
D
E
F
L9
L10
L11
L12
L14
L15
L13
L7
L1
Max. drop:15m
When the outdoor unit is installed below the indoor units, the maximum height should be 40m
There is no need to install oil traps on liquid pipe.
