Hitachi UTOPIA R32 Series User Manual

42
PMEN0654 rev.0 - 12/2023
9
RAS-(2-3)HVRC3 VACUUM PUMPING EXAMPLE
VACUUM PUMPING
9.3 RAS-(2-3)HVRC3 vacuum pumping example
Outdoor unit
Liquid line stop valve
Manifold
gauge
Gas line stop valve
Vacuum pump
Nitrogen tank
(for air ght test and
nitrogen blow during brazing)
Gas line
Liquid line
Mul-Kit
Indoor unit
Cover the are nut and union of the piping
connecon securely with thermal insulaon
Indoor unit thermal insulaon nishing.
Wind a tape from outside of thermal insulaon of gas piping and liquid piping.

Hitachi UTOPIA R32 Series Specifications

General

Brand	Hitachi
Model	UTOPIA R32 Series
Category	Air Conditioner
Language	English