Daikin VRV II Series Design, Installation & Testing Instructions page 120

Appendix
7.4.2 How to select the refnet header
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*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,
3. example in the case of refnet header; indoor units 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8
7.4.3 How to choose an outdoor branch kit (needed if the outdoor unit
capacity type is RXYQ18 or more.)
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Choose from the following table in accordance with the total capacity of all the indoor units
connected below the REFENT header.
Note: 250 type cannot be connected below the REFENT header.
Indoor capacity index
< 200
< 290
≤
290 X < 640
640 <
Outdoor unit
a b c
A B C
h i j
1 2
example in case of refnet header;indoor units 1 + 2 + 3 + 4 + 5 + 6
Outdoor unit
a
H1
Refnet header
c
Outdoor unit
a
b c d
1 2
Indoor units (1-8)
Choose from the following table in accordance with the number of outdoor units.
Number of outdoor units
2 unit
3 unit
Refrigerant branch kit name
KHRP26M22H (Max.4 kit)
KHRP26M33H (Max.8 kit)
KHRP26M72H (Max.8 kit)
KHRP26M73H(Max.8 kit) + KHRP26M73HP
REFNET joint (C)
g
d e f
D E F G
k l m n
3 4 5 6
Indoor units (1-8)
REFNET joint (B)
i
A
b
g
d e f h
1 2 3 4 5 6
Indoor units (1-8)
Refnet header
g
e
f h
3 4 5 6 7
H2
BHFP22M90 + BHFP22M90P
BHFP22M135 + BHFP22M135P
7
H2
8
B
k
j
7 8
H2
H1
8
Branch kit name
General Information
Si39-303