REMKO 4-Way Switching Valve - Manual (Page 6)

6
REMKO
FOUR-WAY SWITCHING VALVE
Mode of operation
All the moving parts and all valve gaskets
are incorporated into a cartridge.
The outer surface of the piston has O-
rings which guarantee that the paths are
hermetically sealed.
If the valve rod is moved to position I, the
flow passes through the openings of the
cylindrical gate valve, taking the route
"A" and "B" and "C" and "D".
If, on the other hand, the valve rod is in
position II (outlet position), then the flow
takes route "A" and "D" and "B" and
"C".
Operation
The switching process and the running
time for 90° is 60 seconds. The valve can
be adjusted manually using the supplied
rotary knob.
Manual actuation of the valve is useful
whenever the line system is being refilled,
drained or bled, but also if the electric
motor is no longer functional (e.g. due to
power failure).
When the four-way switching valve is
reconnected to the power supply after a
power cut, the actuator and the valve re-
turn automatically to the normal position.
Valve position
Valve position II
(bivalent mode):
Switch position: A<->D and B<->C Valve position I
(only heat pump in operation):
Switch position: A<->B and C<->D
A
B
D
C
A
B
D
C