Honeywell Home V8043C Instructions D'installation page 6

V8043C, D, F & G MOTORIZED ZONE VALVES
NORMALLY CLOSED MODELS
With the manual opener set to AUTO and the powerhead
energized, the valve is opened as shown in Fig. 8-1. When
the powerhead is de-energized, a spring return
mechanism drives the valve to the closed positions shown
in Fig. 8-2. 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.
NORMALLY OPEN MODELS
When the powerhead is de-energized, a spring return
mechanism drives the valve to the open position.
See Fig. 8-1. When energized, the valve is closed as shown
in Fig. 8-2. A reverse acting thermostat is required to
control a normally open valve.
Resideo Technologies, Inc.
1985 Douglas Drive North, Golden Valley, MN 55422
1-800-468-1502
www.resideo.com 95C-10002EF—03 M.S. Rev. 03-20 | Printed in United States
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The Honeywell Home trademark is used under license from Honeywell International, Inc. This product is manufactured by Resideo Technologies, Inc. and its affiliates.
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A B
IN
OUT
OPEN POSITION
Fig. 8-1.
Note: Inlet port is stamped 'A', outlet Port is stamped 'B' on
the valve body.
Fig. 8. V8043 Operation for N.C. Valve.
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. 8-2.