Product Overview

V8043A, E, F 5000 SERIES ZONE VALVES
© 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.
www.resideo.com
Resideo Technologies, Inc.
1985 Douglas Drive North, Golden Valley, MN 55422
1-800-468-1502
95C-10932—04 M.S. Rev. 04-20 | Printed in United States
Fig. 27. Wiring V8043F to White-Rodgers System
(alternate option).
OPERATION
CAUTION
On 24V systems, never jumper the valve coil
terminals even temporarily. This can burn out the
heat anticipator in the thermostat.
Automatic Operation
On a call for heat by the zone thermostat, the valve opens
and its auxiliary switch contacts make, closing the circuit
to the system circulator. In a multizone system with all the
valve auxiliary switches wired in parallel, any zone calling
for heat can operate the circulator. When the call for heat
ends, the valve closes by integral spring return. The
auxiliary switch contacts break the circulator circuit.
Manual Operation
The motorized valve can be opened manually by lifting 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 in the open position. The valve
returns to automatic position when the valve is energized.
Normally Closed Models
With the manual opener set to AUTO and the actuator
energized, the valve is opened as shown in Fig. 28A. When
the actuator is de-energized, a spring-return mechanism
drives the valve to the closed position as shown in Fig. 28B.
The valve 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 in the open position.
The valve returns to the automatic position when the valve
is energized.
Auxiliary switch is not energized when the valve is manually
opened.
NOTE: Flow direction arrow is stamped on the valve body
indicating flow direction from Inlet Port A to
Outlet Port B.
Fig. 28. V8043 operation for normally closed valve.
CHECKOUT
1. Raise the setpoint on the zone thermostat above the
room temperature to initiate a call for heat.
2. Observe all control devices - the valve should open
and the auxiliary switch should make the circuit to
the circulator or other valve at the end of the
opening stroke.
3. Lower the setpoint on the zone thermostat to below
the room temperature.
4. Observe the control devices. The valve should close
and the auxiliary equipment should stop.
SERVICE
This valve should be serviced by a trained, experienced
service technician.
1. If the valve is leaking, drain the system and check to
see if the O-ring needs replacing.
2. If the gear train is damaged, replace the entire
actuator assembly. See the Installation section. If the
motor is burned out, replace the motor.
NOTE: The zone valves are designed and tested for silent
operation in properly designed and installed sys-
tems; 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 insufficient water pressure. Valves are
designed for normal cycling operations. Product life
will be shortened if energized continuously.
NOTE: These hydronic valves are not suitable for use in
open loop systems where there is air exposure.
THERMOSTAT
END SWITCH
L1
(HOT)
L2
V8043F
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
IF TRANSFORMER SUPPLIES POWER TO AUXILIARY CIRCUIT,
WIRE AUXILIARY CIRCUIT AS SHOWN IN LOWER DIAGRAM.
TAPE UNUSED END AND TUCK INTO HOLE.
1
2
3
1
2
3
4
5
6
L1
(HOT)
L2
1
TO
AUXILIARY
CIRCUIT
TO
AUXILIARY
CIRCUIT
2
END SWITCH
TH-TR
TH TR
M5714
B
OUT
OPEN POSITION
A
A
IN
B
OUT
CLOSED POSITION
B
A
IN
M5951