RXYQQ8~20U7Y1B
VRV IV Q+ series heat pump
4P546229-1A – 2020.10
Example
Example 2.3
r
u
a
b
c
d
1
2
3
Example 3
r
u
Indoor unit
Refnet joint
Refnet header
Outdoor multi connection piping kit
Maximum allowable length
▪
Between outdoor and indoor units
Actual piping length
Equivalent length
Total piping length
▪
Between outdoor branch and outdoor unit (only in case of a multi outdoor
installation)
Actual piping length
Equivalent length
H3
t
s
H1
e
f
g
h
i
4
5
6
7
8
H2
s
t
120 m
Example 1.1
▪
unit 8: a+b+c+d+e+f+g+p≤120 m
Example 1.2
▪
unit 6: a+b+h≤120 m
▪
unit 8: a+i+k≤120 m
Example 1.3
▪
unit 8: a+i≤120 m
Example 2.1
▪
unit 8: a+b+c+d+e+f+g+p≤120 m
150 m
300 m
Example 1.1
▪
a+b+c+d+e+f+g+h+i+j+k+l+m+n+p≤300 m
Example 2.1
▪
a+b+c+d+e+f+g+h+i+j+k+l+m+n+p≤300 m
10 m
Example 3
▪
r, s, t≤10 m; u≤5 m
13 m
18
Piping installation
|
Description
Multi outdoor
Branch with refnet header
With standard multi layout
Installer and user reference guide
77