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V8043C, D, F & G 5000 SERIES MOTORIZED ZONE VALVES
OPERATION
CAUTION
1.
Disconnect power supply before connecting
wiring to prevent electrical shock and equip-
ment damage.
2.
Never jumper the supply wires or actuator ter-
minals even temporarily. This may damage the
thermostat.
The actuator has three different manual settings: AUTO,
OPEN, and SWITCH (on 300 psi models only). In AUTO
mode, the valve cycles with the thermostat and activates
the auxiliary switch when valve is at full open.
In OPEN mode, the valve is opened to allow the system to
be filled, flushed, or drained. The auxiliary switch is not
activated. The valve returns to AUTO mode when it is
energized.
NORMALLY CLOSED MODELS
With the manual opener set to AUTO and the powerhead
energized, the valve is opened as shown in Fig. 11-1.
When the powerhead is de-energized, a spring return
mechanism drives the valve to the closed positions shown
in Fig. 11-2. The valve can also be opened with no
electrical power by moving the manual opener lever over
the stop and pushing slowly and firmly to the 'MAN.
OPEN'* position. The valve will return to automatic
position when the valve is energized.
*Auxiliary switch is not energized when the valve is
manually opened.
Resideo Technologies, Inc.
1985 Douglas Drive North, Golden Valley, MN 55422
1-800-468-1502
www.resideo.com
95C-10938EF—04 M.S. Rev. 04-20 | Printed in United States
© 2020 Resideo Technologies, Inc. All rights reserved.
The Honeywell Home trademark is used under license from Honeywell International, Inc. This product is manufactured by Resideo Technologies, Inc. and its affiliates.
Tous droits réservés. La marque de commerce Honeywell Home est utilisée avec l'autorisation d'Honeywell International, Inc.
Ce produit est fabriqué par Resideo Technologies, Inc. et ses sociétés affiliées.
NORMALLY OPEN MODELS
When the powerhead is de-energized, a spring return
mechanism drives the valve to the open position. See
Fig. 11-1. When energized, the valve is closed as shown in
Fig. 11-2. A reverse acting thermostat is required to
control a normally open valve.
A
B
IN
OUT
OPEN POSITION
Fig. 11-1.
Note: Inlet port is stamped 'A', outlet Port is stamped 'B' on
the valve body.
Fig. 11. V8043 Operation for N.C. Valve.
NOTE: Resideo zone valves are designed and tested for
silent operation in properly designed and
installed systems; however, water noises can
occur as a result of excessive water velocity or
piping noises can occur in high temperature
(higher than 212° F [100° C]) systems with insuf-
ficient water pressure. Valves are designed for
normal cycling, not continuously energized oper-
ations.
NOTE: These hydronic valves are not suitable for use in
open loop systems where there is air exposure.
A
B
IN
OUT
CLOSED POSITION
M16955
Fig. 11-2.
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