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INSTALLATION AND OPERATION MANUAL
28
11.4. REFRIGERANT PIPING LENGTH
The refrigerant piping between the indoor unit and the outdoor unit should be designed using the following table.
Piping length specification:
¡
Unit
3HVRNME
4H(V)RNM1E
5H(V)RNM1E
6H(V)RNM1E
4HVRNS1E
5HVRNS1E
6HVRNS1E
The possible combination between Outdoor Unit and Indoor Unit are the following:
”
Single System
NOTE:
L&H are the Length & Height indicated in the above chart.
For twin, triple and quad the length is the distance between the
Outdoor Unit and the farthest Indoor Unit
Twin
B-C
< 8 m
B-C
Triple
B-D
< 8 m
C-D
(D+B)-(F+C)
(E+B)-(F+C)
(G+C)-(E+B)
Quad
(G+C)-(D+B)
D-E
F-G
PMML0197_r0_04-10.indb 28
Maximum piping length between
Outdoor and each indoor unit (L)
Actual/Equivalent
50/70
70/90
75/95
50/70
Twin System
L= A + Longest of B & C
L= A + B + longest of D, E or A + C + longest of F,G.
B,C ≤ 10 m (each)
B,C,D ≤ 10 m (each)
D+B
E+B
< 8 m
≤ 10 m (each)
F+C
G+C
Maximum Height difference.
Outdoor unit is higher than indoor unit/
Indoor unit is higher than Outdoor unit
(H)
30/20
L= A + Longest of B, C & D
Quad system
11.4.1. REFRIGERANT PIPING SELECTION
Select the piping connection sizes according to the following
”
procedures:
- Between Outdoor Unit and branch pipe:
- Select the same pipe connection size as the pipe size of the
Outdoor Unit
- Between branch pipe and Indoor Unit:
- Select the same pipe connection size as the pipe size of the
A
Indoor Unit
Piping connection size of Outdoor Unit, Indoor Unit & Distributor
”
>B,C
Outdoor
Gas Pipe
Unit
(A)
>B,C,D
3.0 HP
15.88 (5/8)
4.0 HP
15.88 (5/8)
5.0 HP
15.88 (5/8)
>B+D
>B+E
6.0 HP
15.88 (5/8)
>C+F
Total I.U. Capacity after connecting second branch pipe
(1)
>C+G
Indoor Unit
0.8~2.0 HP
2.3~6.0 HP
(1)
Only for RAS-5/6H(V)RNM1E
(2)
Total Indoor unit capacity after connecting secon branch pipe:
≤ 2.0 HP
2,3 to 6.0 HP
(m)
Triple System
Pipe Size
Branch Pipe
Liquid Pipe
Twin
Triple
(A)
9.53 (3/8)
TE-03N
9.53 (3/8)
TE-56N
9.53 (3/8)
TE-56N
9.53 (3/8)
TE-56N
TRE-06N TE-56N
Gas piping Size
Liquid piping Size
(B,C or D)
(B,C or D)
∅12.70 (1/2)
∅6.35 (1/4)
∅15.88 (5/8)
∅9.53 (3/8)
TE-06N
TE-56N
Quad
(1)
-
-
-
-
-
-
-
TE-56N
(2)
08/07/2010 9:20:43
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