Selection Of Refrigerant Branch Kits - Daikin VRV Aurora RELQ-TATJU Series Engineering Data

EDUS371705A-N
7.3.2. Piping between refrigerant branch kits or refrigerant
branch kits and Branch Selector units: C
Choose from the following table in accordance with the indoor unit
total capacity, connected downstream. Do not let the connection pip-
model name.
Indoor unit
Suction gas
capacity index
< 54
< 72
< 111
< 162
< 230
< 300
> 300
Example:
+ unit 6)
7.3.3. Piping between refrigerant branch kits or Branch Selec-
tor units and indoor units: D
Pipe size for direct connection to indoor units must be the same as the
connection size of the VRV indoor units.
Indoor unit
capacity index
07, 09, 12, 18
24, 30, 36, 42,
48, 54
72
96

7.4. Selection of refrigerant branch kits

units, choose from the following table in accordance with the capac-
of piping size).
Outdoor unit capacity type
3P477778-1B
RELQ-TATJU / RELQ-TAYDU / RELQ-TAYCU
Piping outer diameter size
High/low
pressure gas Liquid pipe
pipe
pipe
5/8 in. 1/2 in.
(15.9 mm) (12.7 mm)
3/4 in. 5/8 in.
(19.1 mm) (15.9 mm) (9.5 mm)
7/8 in.
(22.2 mm)
3/4 in.
(19.1 mm)
(12.7 mm)
1-1/8 in.
(28.6 mm)
(15.9 mm)
1-3/8 in. 1-1/8 in.
(34.9 mm) (28.6 mm)
(19.1 mm)
1-5/8 in.
(41.3 mm)
Piping outer diameter size
Gas pipe Liquid pipe
1/2 in. (12.7 mm) 1/4 in. (6.4 mm)
5/8 in. (15.9 mm)
3/8 in. (9.5 mm)
3/4 in. (19.1 mm)
7/8 in. (22.2 mm)
Kit name
KHRP25A33T9
KHRP25M72TU9
KHRP25M73TU9
English
joint b - see 7.3. Selection of piping size), select the proper branch
kit model based on the total capacity of all indoor units connected
after the refrigerant branch.
Indoor unit
capacity index
< 72
< 111
< 246
accordance with the total capacity of all the indoor units connected
3/8 in.
Indoor unit
capacity index
1/2 in.
< 72
5/8 in.
< 111
3/4 in.
< 230
INFORMATION
How to choose an outdoor multi connection piping kit (needed if the
outdoor unit capacity type is 144 or more). Choose from the follow-
ing table in accordance with the number of outdoor units.
Number of outdoor units
2
Installation Manual
Kit name
KHRP25A22T9 KHRP26A22T9
KHRP25A33T9 KHRP26A33T9
KHRP25M72TU9 KHRP26M72TU9
KHRP25M73TU9 KHRP26M73TU9
Kit name
KHRP26M22H9:
or
KHRP25M33H9
KHRP26M33H9:
KHRP26M33H9
KHRP25M72H9 KHRP26M72H9
KHRP25M73HU9 KHRP26M73H9
Branch kit name
BHFP26P100U
10
10