Hitachi RASC-4HNPE Service Manual page 54

3 Piping work and refrigerant charge
Refrigerant piping range
3 indoor units system
44 SMGB0091 rev.2 - 11/2015
RASC unit
Gas
(4-6) HP Ø15.88
8 HP Ø25.4
10 HP Ø25.4
• (*): In case that pipe length (A+B or A+C or A+D) exceeds 70m in 8 HP, please
use a Ø12.7 pipe as a liquid pipe.
• (**): In case of combinations with 8.0HP or 10.0HP indoor units, install a line
branch system with multi-kits E-162SN3 and E-102SN3.
• The dimensions for TRE and TG multi-kits are different. Refer to the Indoor
units' Technical Catalogue in order to check the dimensions.
(mm)
Pipe size (B, C)
Indoor unit capacity
after branch
Gas
(0.8-1.5) HP Ø12.7
(1.8/2.0) HP
Ø15.88
(2.3-6.0) HP Ø15.88
8.0 HP
Ø19.05
10.0 HP Ø22.20
(mm)
Pipe Size (A)
Liquid TRE option
Ø9.52 TRE-46N1
Ø9.52 (*) TRE-812N1
TRE-812N1
Ø12.7
(**)
Liquid
Ø6.35
Ø6.35
Ø9.52
Ø9.52
Ø9.52
Multi-kit
(**)
TG option
TG-53AN
TG-103AN
TG-103AN
(**)