Hitachi SET FREE Series Instruction Manual page 44

PIPING WORK AND REFRIGERANT CHARGE
Details of stop valves
Gas valve
Hexagonal wrench
To open or close
spindle valve
Cap
Spindle valve
Counterclockwise...Open
Clockwise...............Close
FSXNSE - FSXNPE
outdoor Unit (Base
Unit)
High/low
gas valve
RAS-(8-12)FSXNSE
RAS-(5-12)FSXNPE
RAS-(14-18)FSXNSE
18.0 - 22.0
RAS-14FSXNPE
RAS-(20-24)FSXNSE
RAS-(16-18)FSXNPE
34 PMML0479 rev.2 - 02/2018
Check joint for service port
Refrigerant
pressure
tightening torque (n-m)
spindle (Valve) flare nut
liquid
Gas Valve liquid
Valve
18.0 - 22.0 33.0 - 42.0
7.0 - 9.0
50.0 - 62.0
25.0 - 31.0
9.0 - 11.0 68.0 - 84.0
Liquid valve
Check joint for service port
Only the charging hose can be
connected.
Cap
O-ring
Hexagonal wrench
To open or close
spindle valve
Spindle valve
Counterclockwise...Open
Clockwise...............Close
Refrigerant piping
Cap
liquid
Gas Valve Gas Valve
Valve
33.0 - 42.0
49.0 - 58.0 9.0 - 14.0
50.0 - 62.0
Refrigerant
pressure
Flare nut
Hexagonal
wrench size
Check Joint
(mm)
liquid Gas liquid
Valve Valve Valve
14.0 - 18.0 10
4
5