Refrigerant Branch Kit Selection - Daikin VRV II Series Design, Installation & Testing Instructions

Si39-303
7.4

Refrigerant branch kit selection

Refrigerant branch kits can only be
used with R410A.
7.4.1 How to select the refnet joint
!
Choose from the following table in accordance with the capacity of the outdoor unit.
Outdoor unit capacity type
!
*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
General Information
When using refnet joints at the first branch counted from the outdoor unit side.
RXYQ5 type
RXYQ8, 10type
RXYQ12 ~ 22 type
RXYQ24 type ~
For refnet joints other than the first branch, select the proper branch kit model based on the
total capacity index of downstream indoor units.
Indoor capacity index
< 200
≤
200 X < 290
≤
290 X < 640
640 <
Outdoor unit
a b c
A B
h i
1 2
example in case of refnet joint header; indoor units 1 + 2 + 3 + 4 + 5 + 6
H1
Refnet header
Outdoor unit
a
b c d
1 2
Indoor units (1-8)
Refrigerant branch kit name
KHRP26M73T + KHRP73TP
Refrigerant branch kit name
KHRP26M73T + KHRP73TP
REFNET joint (C)
g
d e f
C D E F
j k l m
3 4 5 6
Indoor units (1-8)
Outdoor unit
a
A
b
c d e f
1 2 3 4 5
Indoor units (1-8)
Refnet header
g
e
f h
3 4 5 6 7
H2
KHRP26M22T
KHRP26M33T
KHRP26M72T
KHRP26M22T
KHRP26M33T
KHRP26M72T
H1
G
n
7
H2
8
REFNET joint (B)
i
B
k
j
7 8
H2
g
h
6
H1
8
Appendix
113