Daikin VRV BSF4Q54TVJ Manuel D'installation page 14

Example connection 1 : When connecting 1 indoor unit downstream of the Branch Selector unit
Select a size from Table 3 based on the
total capacity index of the indoor units to
To outdoor unit
or refrigerant
branch kit
(1): High/low pressure gas pipe
(2): Liquid pipe
(3): Suction gas pipe
Example connection 2 : When there is a branch downstream from the Branch Selector unit
Select a size from Table 3
based on the total capacity
index of the indoor units to
be connected downstream.
Upstream
(1)
To outdoor unit
or refrigerant
(2)
branch kit
(3)
(1): High/low pressure gas pipe
(2): Liquid pipe
(3): Suction gas pipe
Example connection 3 : When connecting Branch Selector unit in pass through
Select a size from Table 3
based on the total capacity
index of the indoor units to be
connected downstream. (A+B+C)
(1)
To outdoor unit
or refrigerant
(2)
branch kit
(3)
(1): High/low pressure gas pipe
(2): Liquid pipe
(3): Suction gas pipe
NOTES
• Either side of refrigerant pipe (outdoor unit side) of Branch Selector unit can be upstream.
Choose which side to be upstream according to installation site.
11
be connected downstream.
Branch
Upstream
Selector unit
(1)
(2)
(3)
Branch
Table 5
Selector unit
Gas pipe
Liquid pipe
Select a size from Table 3
based on the total capacity
index of the indoor units to be
connected downstream. (B+C)
1st Branch Selector unit
(1)
Table 5
(2)
(3)
Liquid pipe Gas pipe
Indoor unit
A: Total indoor unit capacity index
to be connected downstream
1st Branch Selector unit.
Select a size from Table 4 based on the
indoor unit capacity type.
Downstream
Table 5
Gas pipe
Liquid pipe
Refer to the installation manual included
with the outdoor unit or the equipment
design materials to determine the size of
the pipes between the Branch Selector unit
and the refrigerant branch kits and between
the refrigerant branch kits and indoor units.
Downstream
Indoor unit
Select a size from Table 3
based on the total capacity
index of the indoor units to be
connected downstream. (C)
2nd Branch Selector unit
Table 5
Liquid pipe Gas pipe
Indoor unit
B: Total indoor unit capacity index
to be connected downstream
2nd Branch Selector unit.
Indoor unit
Downstream
Refrigerant branch kit
Indoor unit
Indoor unit
3rd Branch Selector unit
(1)
Table 5
(2)
(3)
Liquid pipe Gas pipe
Indoor unit
C: Total indoor unit capacity index
to be connected downstream
3rd Branch Selector unit.
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