(3-way) Valve
Service Manual
49
(3-way) Valve
3-way Valve (Liguid Side)
3-way Valve (Gas Side)
Works
Shaft position
Shaft position
Service port
Shipping
Closed
Closed
Closed
(with valve cap)
(with valve cap)
(with cap)
Air purging
Open
Closed
Open
(Installation)
(counter-clockwise)
(clockwise)
(push-pin or with
vacuum pump)
Operation
Open
Open
Closed
(with valve cap)
(with valve cap)
(with cap)
Pumping down
Closed
Open
Open
(Transfering)
(clockwise)
(counter-clockwise)
(connected
manifold gauge)
Evacuation
Open
Open
Open
(Servicing)
(connected
manifold gauge)
Gas charging
Open
Open
Open
(Servicing)
(with charging
cylinder)
Pressure check
Open
Open
Open
(Servicing)
(connected
manifold gauge)
Gas releasing
Open
Open
Open
(Servicing)
(connected
manifold gauge)
3.
2.
1.
4.
5.
6.
Valve cap
Open position
Closed position
Pin
Service
port
Service
port cap
To piping
connection
To outdoor unit
Valve cap
Open position
Closed position
Pin
Service
port
Service
port cap
To outdoor unit
To piping
connection
Service port
Closed
(with cap)
Open
(push-pin or with
vacuum pump)
Closed
(with cap)
Closed
(with cap)
Closed
(with cap)
Open
(connected
manifold gauge)
Open
(connected
manifold gauge)
Open
(connected
manifold gauge)