Daikin VRV IV, Инструкция для установки и пользователя

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18 | Piping installation
Installer and user reference guide
75
RXYLQ10~14T7Y1B*
VRV IV system air conditioner
4P543427-1A – 2020.10
Example Description
Example 2.3
a
b
1 2 3 4 5 6 7
8
c d e f g h i
t
u
r
s
H1
H3
H2
Multi outdoor
Branch with refnet header
Example 3
r s
u
t
With standard multi layout
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 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
Equivalent length 190 m /160 m
Total piping length 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
▪ Between outdoor branch and outdoor unit (only in case of a multi outdoor
installation)
Actual piping length 10 m
Example 3
▪ r, s, t≤10 m; u≤5 m
Equivalent length 13 m