Hitachi UTOPIA RAS-4HVRP2E Service Manual page 59

3 Piping work and refrigerant charge
Refrigerant piping range
30m
30m
?
N O T E
All pictures are as example. Branch and headers are not showed as real sizes or real picture, for the installation of this components fol-
low the technical documentation.

Installing Distributor
1 Install the distributor supplied by Hitachi on request.
A tee can not be installed instead of a branch pipe.
2 Installing the distributor
Fix the branch pipe horizontally to the pillar, wall or ceiling. Piping must not be fixed rigidly to the wall as thermal
expansion and contraction can cause pipe fracture.
57 SMGB0136 rev.0 - 07/2021
IU4
3m
3m IU3
3m
3m
( 6m)
IU2
3m
3m
IU1 3m
IU4
IU3
3m
3m
3m
3m
IU2
3m
IU1
OU1
20m
OU1
OU1
20m
OU1
3