SYSVRF 080 120 AIR EVO C HP Q IM20210526 082925148

8
Allowable length and altitude difference of refrigerant pipe
Maximum
Piping(L)
Indoor Unit to Indoor Unit Drop Heihgt(H)
Equivalent Length
Actual Length
or L1+L3+L5+f(The second connect methond)
or L3+L5+f(The second connect methond)
L1+L2+L3+L4+L5+f(The first connect methond)
L2+L3+L4+L5+f(The first connect methond)
a,b,c,d,e
Total Pipe Length(Actual)
Pipe Length
Pipe Length(from the first line branch
pipe to furhtest indoor unit)(m)
Indoor Unit-Outdoor
Unit Drop Height(H)
Outdoor Unit up
Outdoor Unit Down
Pimitted value
≤50m(8kW)
≤65m(10/12kW)
≤100m(14/16kW)
≤20m
≤15m
≤8m
≤10m(8kW)
≤20m(10/12kW)
≤30m(14/16kW)
Piping
L1+L2+L3+L4+L5
+a+b+c+d+e+f
≤10m(8kW)
≤20m(10/12kW)
≤20m(14/16kW)
Drop HEIGHT between indoor unit and uutdoor unit
The first cennect methond
Indoor Unit
The First Line Branch Pipe
Outdoor unit
a
A
L2
L1
B
C
D
E
L3 L4 L5
b
c
d
e f
Fig.4-7
Note: When the total equivalent piping length of liquid + gas side is ≥90m, it must increase the size of air side main pipe. Besides, according
to the distance of refrigerant pipe and the over matched state of inner unit, when the capacity is decreasing it still can increase the gas side
main pipe size.
≤35m(8kW)
≤45m(10/12kW)
≤60m(14/16kW)
≤40m(8kW)
≤50m(10/12kW)
≤70m(14/16kW)
Drop Height
Pipe Length(from the nearest branch
pipe equivalent length(m)
Pipe length(From the nearest branch pipe equivalent length)
Maximum pipe equivalent length
(From the first line branch pipe) Maximum pipe equivalent length
Indoor Unit to Indoor Unit Drop Heihgt
table 4-11