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V4044C, V4044F
Function
V4044C and V4044F 2-position hydronic valves are used in
domestic and small commercial applications to control the
flow of hot or cold water. They consist of an actuator and a
valve.
With the manual opener set to AUTO and the actuator
energized, port A of the valve is opened and port B is closed.
When the actuator is de-energized, a spring-return
mechanism drives the ball to close port A, opening port B.
Port A can also be opened with no electrical power by moving
the manual opening lever over the stop and pushing slowly
and firmly to the MAN. OPEN position. The stop permits the
valve to be locked with port A in the open position. The valve
returns to the automatic position when the valve is energized.
A power failure will leave the valve at the spring-returned
position. When power is restored, the valve will respond to
controller demand.
Wiring
Fig. 3. Wiring diagram for V4044C
a
brown
NOTE: The V4044C has no end switch. It is equipped with a 3 wire cable (line, neutral, earth)
The V4044F1034 has an SPST end switch. It is equipped with a 5-wire cable (line, neutral, earth, end switch). The end
switch closes when the valve is in position AB – B
The V4044F1000 has an SPDT end switch. It is equipped with a 6-wire cable (line, neutral, earth, end switch NO, end
switch NC)
The length of all cables is 1m
EN0H-0325GE25 R0906
Fig. 4. Wiring diagram for
Table 1. Cable colour coding
b
c
blue
green/yellow
Fig. 1. V4044C/F in
energized position (AB-A)
NOTE: Port AB is always open
V4044F1034
d
orange
2
Fig. 2. V4044C/F in de-
energized position (AB-B)
Fig. 5. Wiring diagram for
V4044F1000
e
h
grey
white
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