Specifications

34
OD
(mm)
Pipe diameter and thickness
[6.35
0.8
Be sure to use hard (tempered) one for pipe over [22.2.(Do not use soft (annealed) one.)
0.8 0.8 1.0 1.0 1.0 1.0 1.0
[9.52 [12.7 [ 15.88 [ 19.05 [22.2 [25.4 [ 28.58
1.1
[ 31.75
Thickness
(mm)
1
4
Number of pipe bends
Within 15
points8 points between main pipe A and
each branch pipe (B, C, D, E).
2
3
Distance between indoor and indoor units
pipe length.
B—C B—D B—E
C—D C—E D—E
1 Indoor unit
2 Outdoor unit
3 Main piping
4 Branch piping
5 Multi disttibution
pipe (option)
E
A
1
B C
1
44
4
3
5
2
2
Height difference (Indoor unit-
Outdoor unit) Max. 40 m
Height difference (Indoor unit-
Indoor unit) Max. 1 m
D
1
4
1
1
<Table 6> Lowered cooling capacity by the smaller gas pipe diameter
5m and less
6~10m
11~20m
21~30m
31~40m
41~50m
100%
100~96%
96~91%
91~86%
86~83%
83~80%
100%
100~91%
91~81%
Pipe length
gas pipe [22.2 gas pipe [19.05
RP10 Cooling capacity ratioRP8 Cooling capacity ratio
100%
100~98%
98~94%
94~91%
91~88%
88~86%
100%
100~95%
95~88%
gas pipe [25.4 gas pipe [22.2
<Table 7> Additional refrigerant amount when the liquid pipe of the larger diameter is used.
(Single /Simultaneous Twin / Simultaneous Triple / Simultaneous Quadruple)
<Table 8>
<Table 9>
Additional refrigerant amount W(g)=(180oL1)+(120oL2) (90oL3)+(30oL4)-3000
When the extension pipe length (main piping + branch piping) exceeds 20mCapacity
RP8, RP10
L1 : [15.88 liquid pipe (m) L2 : [12.7 liquid pipe (m)
L3 : [9.52 liquid pipe (m) L4 : [6.35 liquid pipe (m)
If the calculation produces a negative number (i.e. a "minus" charge), additional charging is not necessary.
( W [ 0)
Permissible total A+B or A+C Charge-less
Outdoor unit piping length or piping length
A+B+C+D+E A+D or A+E A+B+C+D+E
RP8
80 m and less 80 m and less 30 m and less
PR10
B-C or B-D or
Outdoor unit
B-E or C-D or
Number of
pipe bends
C-E or D-E
RP8
8 m and less Within 15
RP10
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