Daikin VRV BSF4Q54TVJ Manuel D'installation page 15

Table 3 Total indoor unit capacity and pipe size
Total indoor unit capacity
index (x)
f5/8
x < 54
f3/4
54 ≤ x < 72
f7/8
72 ≤ x < 111
111 ≤ x < 162
f1-1/8
162 ≤ x < 230
f1-3/8
230 ≤ x ≤ 290
• In case of connection to the main pipe, refer to the installation manual included with the outdoor unit or
Engineering Data Book.
Table 4 Indoor unit connection pipe size
Indoor unit capacity type
05, 07, 09, 12, 15, 18
24, 30, 36, 42, 48, 54
72
96
• Table 5 lists Branch Selector unit connection pipe size.
Table 5 Branch Selector unit connection pipe size
Outdoor unit side (*1)
Branch Selector unit
BSF4Q54TVJ
BSF6Q54TVJ
BSF8Q54TVJ
Indoor unit side (*2)
Branch Selector unit
BSF4Q54TVJ
BSF6Q54TVJ f1/2 (f5/8)
BSF8Q54TVJ
*1 If the pipe size differs from that of the size selected from Table 3, you will need reducers (field sup-
plied or via separately sold optional Reducer kit (KHFP26A200T)).
*2 The pipe diameter in parentheses can be used by cutting the pipes on the Branch Selector unit side
with a pipe cutter. For details, refer to "5-3 Piping connection."
English
Upstream
Suction High/low pressure
in. mm in.
f15.9 f1/2
f19.1 f5/8
f22.2
f3/4
f28.6
f1-1/8
f34.9
Pipe size (Outside diameter)
Gas pipe
in. mm
f1/2 f12.7
f5/8 f15.9
f3/4 f19.1
f7/8 f22.2
Suction pipe
in. mm
f1-1/8 f28.6
Gas pipe
in. mm
f12.7 (f15.9)
Pipe size (Outside diameter)
Liquid
mm in. mm
f12.7
f15.9 f3/8 f9.5
f19.1
f1/2 f12.7
f5/8 f15.9
f28.6
f3/4 f19.1
Liquid pipe
in.
f1/4
f3/8
High/low pressure gas pipe
in. mm
f1-1/8 f28.6
Liquid pipe
in. mm
f1/4 (f3/8) f6.4 (f9.5)
Downstream
Gas pipe Liquid pipe
in. mm in.
f5/8 f15.9
f3/4 f19.1 f3/8
f7/8 f22.2
mm
f6.4
f9.5
Liquid pipe
in. mm
f5/8 f15.9
mm
f9.5
12