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[ II Restrictions ]
[8] Restrictions on Pipe Length
Outdoor unit
H,H'
h1
Length
Total pipe length
Between outdoor unit and HBC controller
Between HBC controller and indoor unit
Height
Between HBC controller and outdoor
difference
units
Between indoor unit and HBC controller
Between indoor units
1) All the indoor units that are connected to the same port must be in the same group and Thermo-ON/OFF operation simulta-
neously. For all the indoor units in the group, the room temperature needs to be monitored via the connected remote controller.
HWE1113B
A
HBC controller
a
Indoor
(WP15 - WP50 models)
Operation
Branch joint
B
c
Indoor
Maximum of 3 units per port
Total capacity of WP80 or below
Pipe sections
A+B+a+c+d
A
B+d
H,H'
h1
h2
- 45 -
Indoor
d
h2
Unit: m [ft]
Allowable length of pipes
No restrictions
110 [360] or less
60 [196] or less
50 [164] or less
15[49](10[32]) or less
15[49](10[32]) or less
GB
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Troubleshooting
