BGH BV-V28W/DHN1 Manual page 78

Figure 3-3.3: The third connecting method (Flaring)
Table 3-3.2: Summary of permitted refrigerant piping lengths and level differences
Total Pipe Length(Actual)
Maximum Piping
Pipe Length
Pipe Length (from the first branch to the
furthest IDU)
Pipe Length(IDU to the nearest branch)
Level difference
Level
between IDU~ODU
difference
Level difference between IDU~IDU
Table 3-3.3: Connectable indoor units
Outdoor unit model
BV -V28W/DHN1(At)
BV -V36W/DHN1(At)
BV -V42W/DHN1(At)
BV -V48W/DHN1(At)
BV -V56W/DHN1(At)
Outdoor Unit
L
1
Legend
L Main pipe
1
a to f Indoor auxiliary pipes
Actual Length
Equivalent Length
Outdoor Unit Up
Outdoor Unit
Down
Number of connected indoor units
1-4
1-6
1-7
1-8
1-9
Permitted value Piping
≤50m(28 model)
≤65m(36/42model)
≤100m(48/56 model)
≤35m(28 model)
≤45m(36/42model)
L1+L2+L3+L4+L5+f
≤60m(48/56 model)
method) or
L1+L3+L5+f (The second connecting method) or
≤40m(28 model)
L1+a (The third connecting method)
≤50m(36/42 model)
≤70m(48/56model)
L2+L3+L4+L5+f(The first connecting method) or
≤20m
≤15m
≤10m (28 model)
≤20m (36/42 model)
≤30m (48/56 model)
≤10m (28 model)
≤20m (36/42 model)
≤20m (48/56 model)
≤10m
Connectable indoor unit capacity range
45-130% outdoor unit's capacity
a
b
c
d
e
f
L1+L2+L3+L4+L5+a+b+c+d+e+f
(The first
L3+L5+f(The second connecting method)
a,b,c,d,e,f
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----
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connecting
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