Hisense HCHM-N04X, Руководство по установке, Страница: 23 / 37

Item Mark
Allowable Piping
Length
Piping
Length
Maximum Piping Length between
BRANCH PIPE
of 1st
Branch and Terminal Indoor Unit
L2 ≤ 90m (295 ft)
1
Maximum Piping Length between
Switch Box
and Indoor Unit
L3a, a+b+d,
a+b+e or a+c
≤ 40m (131 ft)
2
In Case there is Branch after Switch Box , T otal Piping
Length from Switch Box to Each Connected Indoor
Unit per Branch
a+b+c+d+e ≤ 40m (131 ft)
Height
Difference
In Case there is Branch after Switch Box ,
Height Difference between Indoor Units Connected to
Same Connection Port of Switch Box
H3 < 4m (13 ft)
Height Difference between
Switch Boxes H4 < 15m (49 ft)
Height Difference between Switch Box
and Indoor Unit
H5 Refer to NOTE 3.
㹟
㹡
㹠
L3a L3a
L3a
L3a
L2
H4
H3
d
e
Switch Box
Switch Box
Switch Box
Indoor Unit
: 3 Pipes (High/Low Pressure Gas Pipe, Low Pressure Gas Pipe and Liquid Pipe)
: 2 Pipes (Gas Pipe and Liquid Pipe)
H5
H5
H5
H5
Outdoor Unit
BRANCH PIPE
(2)
Piping Work for
Switch Box
Refrigerant piping size depends on the combinations with the outdoor unit. Refer to the
installation
and maintenance manual for the outdoor unit. Perform piping work for the
Switch Box
according
to
the
following figure.
NOTES:
1.
When the piping length from the first branch to the terminal indoor unit exceeds 40m
(131 ft), there
are restrictions.
Refer to the installation and maintenance manual for the outdoor unit.
2.
If the piping length (L3a) between each
Switch Box
and indoor unit is considerably longer than other
indoor
unit, refrigerant may not flow well, and may lessen the unit’s performance compared to other
models.(Recommended Piping Length: Within 15m (49 ft))
3. When the height difference between Switch Box and indoor unit is long, the performance may
decrease.(Recommended Piping Length: Within 15m (49 ft))
14
Each Water Module must occupy one branch of Switch Box exclusively.
4 .
or Water Module
Indoor Unit
or Water Module
Indoor Unit
or Water Module
Indoor Unit
Indoor Unit
Indoor Unit
Indoor Unit