EAS ELECTRIC EVR6 Serie Manual De Instrucciones página 53

Indoor unit branch pipe
Inner branch pipes are a~f, the size selection please refers to
Table4-6. Note: The max. length of the branch pipe should not
longer than 15m.
The main pipes of indoor unit and the indoor unit branch pipe
components
The downstream inner units of the main pipe L2 are N1, N2, and
its total capacity is 56×2=112, the size of pipe L2 is Φ15.9/Φ9.5,
and the branch pipe B should be EVRI-BP1.
The downstream inner units of the main pipe L4 are N3, N4, and
its total capacity is 45×2=90, the size of pipe L4 isΦ15.9/Φ9.5,
and the branch pipe D should be EVRI-BP1.
The downstream inner units of the main pipe L5 are N5, N6, and
its total capacity is 45+56=101, the size of pipe L5 isΦ15.9/Φ9.5,
and the branch pipe E should be EVRI-BP1.
Allowable length and altitude difference of refrigerant pipe
Total Pipe Length(Actual)
Maximum
Piping(L)
Pipe Length(from the first line branch
pipe to furhtest indoor unit)(m)
Pipe Length(from the nearest branch
pipe equivalent length(m)
Indoor Unit-Outdoor
Unit Drop Height(H)
Indoor Unit to Indoor Unit Drop Heihgt(H)
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.
The first cennect methond
Outdoor unit
L1
The first line Branch Pipe
Actual Length
Equivalent Length
Outdoor Unit up
Outdoor Unit Down
Pipe Length(from the nearest branch pipe equivalent length
A
L2
(from the first line branch pipe) Maximum pipe equivalent length
L3
B
b
The indoor unit below to the main pipe L3 are N3～N6, and its to-
tal capacity is 45×3+56=191, the size of pipe L3 isΦ19.1/Φ9.5, and
the branch pipe C should be EVRI-BP1.
The indoor unit below to the main pipe A are N1～N6, and its to-tal
capacity is 45×5+56=281, and the branch pipe should be EVRI-
BP2, and because the total piping length of liquid + air side is
≥90m, check Table.4-4, and the first branch pipe should apply
EVRI-BP2, and according to the principle of maximum value, it
should apply EVRI-BP2.
Main pipe (Please refer to Fig.4-6 and Table 4-4)
In Fig.4-6, the main pipe L1, the outdoor unit capacity is
28kW, and check the Table 4-4 to get the size of gas pipe/liquid
pipe is Φ22.2/Φ9.5, and aslo the total equivalent length of liquid
side and gas side pipes is >90m,then check the Table 4-4 to get
the size of gas pipe/liquid pipe is Φ25.4/Φ12.7, and according to
the maximum value principle, it should apply the Φ25.4/Φ12.7.
Pimitted value
≤150m
L1+L2+L3+L4+L5+f(The first connect methond)
≤100m
or L1+L3+L5+f(The second connect methond)
≤110m
L2+L3+L4+L5+f(The first connect methond)
≤40m
or L3+L5+f(The second connect methond)
≤15m
≤50m
≤40m
≤15m
a
Maximum pipe equivalent length
L4 L5
D
C
c
Indoor Unit
15
Piping
L1+L2+L3+L4+L5+a+b+c+d+e+f
a,b,c,d,e,f
E
d e f
table 4-11
Fig.4-7
V.1