Samsung RVMC060GDM0 Technical Manual page 266

. Installation
8. Piping and refnet joint selection
8-3. Limitation when piping is installed by using only Refnet joint
(during six rooms installation)
Outdoor unit
a
Item
Max. Distance of the
allowable remotest indoor unit
length from the outdoor unit
Height difference between outdoor unit
Max.
and indoor unit (m) = H1(the figures in the
allowable
parenthesis is applied when the outdoor
height
unit is installed below the indoor unit)
difference
Height difference between indoor unit = H2
Allowable length after branching
1) Equivalent length means a calculated value of the actual length plus pressure loss caused by piping curve.
For instance, the equivalent in the case of 10 horse power should be 125 meters (The detailed calculation
of equivalent length should be referenced in page V-43).
b c d
g h i
Outdoor unit
Actual length
(m)
Equivalent
length (m) 1)
42
e f
j k
5.0HP 6.0HP
70
ex) In case of 10 horse power a+b+c+d+e+f ≤ 100m
87
ex) In case of 10 horse power ≤ 125m
30 (30)
15m
The distance from the first refnet joint to the indoor unit :
shorter than 30m ex) b+c+d+e+f ≤ 30m, b+c+i ≤ 30m
The distance between the max piping and min piping length
from 1 refnet joint ≤ 20m
H1
H2
7.0/7.5HP 8.0/10.0HP
100
125
50 (40)