Hitachi UTOPIA R32 Series - 6.1.4 Refrigerant Piping Size and Multi-Kit;Distributor

31
PMEN0654 rev.0 - 12/2023
6
RAS-(2-3)HVRC3
REFRIGERANT PIPING LENGTH
6.1.4 Refrigerant piping size and Mul-Kit/distributor
Select the piping connecon sizes according to the following procedures
• Between outdoor unit and branch pipe: Select the same pipe connecon size as the pipe size of
the outdoor unit.
• Between branch pipe and indoor unit: Select the same pipe connecon size as the pipe size of
the indoor unit.
1 indoor unit system
Outdoor Unit HP
Pipe Size (L)
Gas Liquid
2 / 2.5 Ø12.70 Ø6.35
3 Ø15.88 Ø9.52
2 indoor units system
Outdoor Unit HP
Pipe Size (A)
Branch pipe
Gas (mm) Liquid (mm)
3 Ø15.88 Ø9.52 E-102SN4