Appendix
SiEN34-705
136
General Information
7.4 Refrigerant Branch Kit Selection
7.4.1 How to Select the Refnet Joint
Heat Pump 50Hz/60Hz, Cooling Only 50Hz (RX(Y)Q5~54P, 50PH)
!
When using REFNET joint at the first branch counted from the outdoor unit side.
Choose from the following table in accordance with the outdoor unit capacity type.
(Example: REFNET joint A)
!
Choose the REFNET joints other than that for the first branch from the following table in
accordance with the total capacity index of all the indoor units connected below the REFNET
joint.
*Example of downstream indoor units
1. example in case of refnet joint C; indoor units 3 + 4 + 5 + 6 + 7 + 8,
2. example in case of refnet joint B indoor units 7 + 8
example in case of refnet joint header; indoor units 1 + 2 + 3 + 4 + 5 + 6
3. example in the case of refnet header; indoor units 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8
Refrigerant branch kits can only be
used with R-410A.
Outdoor unit capacity type
Refrigerant branch kit name
5HP type
KHRP26A22T
8, 10HP type
KHRP26A33T
12~22HP type
KHRP26A72T
12~22HP type~
KHRP KHRP26M73TP
Indoor unit total capacity index
Refrigerant branch kit name
< 200
KHRP26A22T
200
≤
x< 290
KHRP26A33T
290
≤
x< 640
KHRP26A72T
640
≤
KHRP KHRP26M73TP
a
A
B
C
D
E
F
G
b
c
d
e
f
g
h
i
j
k
l
m
n
1
2
3
4
5
6
7
8
H2
Outdoor unit
REFNET joint (C)
Indoor units (1-8)
H1
a
i
b
c
d
e
f
g
h
1
2
3
4
5
6
k
j
7
8
A
B
H1
H2
Outdoor unit
Indoor units (1-8)
REFNET header
REFNET joint (B)
a
H1
H2
c
d
e
f
g
h
i
b
1
2
3
4
5
6
7
8
Outdoor unit
Indoor units (1 - 8)
REFNET header
Содержание RXYQ5PY1
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