Daikin VRV IV Installer And User Reference Manual page 75

RXMLQ8 + RXYLQ10~14T7Y1B*
VRV IV system air conditioner
4P543427-1A – 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 (single/multi combinations)
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
165 m/135 m
Example 1.1
▪ unit 8: a+b+c+d+e+f+g+p≤165 m
Example 1.2
▪ unit 6: a+b+h≤165 m
▪ unit 8: a+i+k≤165 m
Example 1.3
▪ unit 8: a+i≤165 m
Example 2.1
▪ unit 8: a+b+c+d+e+f+g+p≤135 m
190 m/160 m
500 m/500 m
Example 1.1
▪ a+b+c+d+e+f+g+h+i+j+k+l+m+n+p≤500 m
Example 2.1
▪ a+b+c+d+e+f+g+h+i+j+k+l+m+n+p≤500 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
75