Haier AV16NMVERA Design Manual - Page 94

Note: a. HZG-30/A includes HZG-20/A

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7. Allowable refrigerant piping length and height difference a. Allowable pipe length and height difference Single way total pipe length Single way max. pipe length Main pipe between outdoor to 1st branch Pipe length between outdoors Height difference between indoor and Outdoor is upper outdoor Outdoor is lower Height difference between outdoors(in the same system) Max. pipe length from 1st branch pipe to indoor Height difference between indoors b. Pipe length between outdoors 300m Max. 150m Max. 90m Less than 10m to 1st branch pipe Max. 50m Max. 40m Within 5m (better be horizontal) Max. 40m Max. 15m outdoor1 outdoor2 outdoor3 Gas/liquid pipe: L1＜10m, L2+L3＜10m Oil equalization pipe: L5+L6＜10m height difference between outdoors: h＜5m 3 1st gather pipe 2st gather pipe Note: a. HZG-30/A includes HZG-20/A; b. The connection pipe among outdoors can not be higher than the stop valve position; c. The connection pipe among outdoors should be horizontal or be in a certain angle as the below figure (less than 15degree). G R U P A d.o.o. 94

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G
R
U
P
A
d.o.o.
±²³³´µ¶·³¸±¹¸º¹»¼¸¹¶½¾±¿»¿»½¼±³¸½¼¾À±¶½Á±À¸»¼À¾±Á»ºº¸¹¸½Â¸
a. Allowable pipe length and height difference
Single way total pipe length
300m
Single way max. pipe length
Max. 150m
Main pipe between outdoor to 1
st
branch
Max. 90m
Pipe length between outdoors
Less than 10m to 1
st
branch pipe
Outdoor is upper
Max. 50m
Height difference between indoor and
outdoor
Outdoor is lower
Max. 40m
Height difference between outdoors(in the same system)
Within 5m (better be horizontal)
Max. pipe length from 1
st
branch pipe to indoor
Max. 40m
Height difference between indoors
Max. 15m
b. Pipe length between outdoors
3
outdoor1
outdoor2
outdoor
3
L1
＜
10m,
L2+L3
＜
10m
Gas/liquid pipe:
1st gather pipe
2st gather pipe
Oil equalization pipe:
height difference between outdoors:
h
＜
5m
L5+L6
＜
10m
Note: a. HZG-30/A includes HZG-20/A;
b. The connection pipe among outdoors can not be higher than the stop valve position;
c. The connection pipe among outdoors should be horizontal or be in a certain angle as
the below figure (less than 15degree).
7.
94