R-410A Sealed System Repair; Service Valves Appearance; Pumping Down - Friedrich FPHFR9A3A Service & Parts Manual

Service Valves Appearance

Shipping
Air purging
1.
(Installation)
Operation

Pumping down

2.
(Transfering)
Evacuation
3.
(Servicing)
Gas charging
4.
(Servicing)
Pressure check
5.
(Servicing)
Gas releasing
6.
(Servicing)
76

R-410A SEALED SYSTEM REPAIR

2-way Valve (Liquid Side)
Hexagonal wrench (4mm)
Flare nut
To
piping
connection
To outdoor unit
Shaft position
Closed
(with valve cap)
Closed
(clockwise)
Open
(with valve cap)
Closed
(clockwise)
Open
Open
Open
Open
Open position
Closed position
(with valve cap)
(with valve cap)
(counter-clockwise) (connected manifold
3-way Valve (Gas Side)
Valve cap
Open position
Flare nut
Closed position
To
piping
Service
connection
port cap
To outdoor unit
Shaft position Service port
Closed
Closed
(with vacumm pump)
(clockwise)
Open
Open
Open
(with charging
Open
(with charging
(with charging cylinder)
Open
(with charging cylinder)
Open
Pin
Service
port
Closed
(with cap)
Open
Closed
(with cap)
Open
gauge)
Open
cylinder)
Open
cylinder)
Open
Open