Filter
Top Products
V4297S NORMALLY OPEN VENT VALVE
65-0244
5
INSTALLATION
When Installing this product…
1. Read these instructions carefully. Be sure to follow
Warning information carefully.
2. Check the ratings given in the instructions and on the
product to make sure the product is suitable for your
application.
3. Installer must be a trained, experienced flame
safeguard control technician.
4. After installation is complete, check out product
operation as provided in these instructions.
WARNING
Explosion Hazard And Electrical Shock Hazard.
Can cause explosion, serious injury or death.
Turn off gas supply before starting installation.
Disconnect power supply before beginning installation.
More than one disconnection can be involved.
Mounting
Refer to the Integrated Valve Train Installation Instructions,
form 66-1099, for instructions on mounting a V4297S
between two Safety Shutoff valves.
WIRING
1. Make sure that all wiring agrees with all applicable local
codes, ordinances and regulations. An opening is
provided to accommodate rigid conduit or armored
cable for line voltage operation (see Fig. 4).
G
L2
4
9
RM7800
(TYPICAL)
120 Vac
N
L
V4297S
M16463
GROUND
NEUTRAL
MAIN VALVE
LINE
VOLTAGE
2. Check the power supply circuit to verify the voltage and
frequency are the same as for the valve.
3. See Fig. 5 for typical V4297S field wiring with the
RM7800 Relay Module. Follow the burner manufacturer
wiring diagram, when provided. Refer to the relay
module wiring diagram for specific wiring terminal
designations.
4. Make wiring connections at the electrical terminations
provided in the valve wiring compartment.
Fig. 4. Wiring compartment of V4297 NOVV.
Fig. 5. Typical wiring diagram for V4297 NOVV.
OPERATION AND CHECKOUT
Operation
The V4297S is a normally open valve. The valve closes when
it is energized, and opens when the power is removed. It
provides the vent function in a double block and bleed
application. The V4297S is open when the two Safety Shutoff
Valves (SSOV) are closed, and is closed when the two SSOV
are open.
Checkout
WARNING
Explosion Hazard And Electrical Shock Hazard.
Can cause explosion, serious injury or death.
1. Do not put the system into service until you have
satisfactorily completed the following Valve Leak
Test, all applicable tests described in the Checkout
section of the instructions for the flame safeguard
control, and any other tests required by the burner
manufacturer.
2. All tests must be performed by a trained,
experienced, flame safeguard control technician.
3. Close all manual fuel shutoff valves as soon as
trouble occurs.
After the installation is completed, cycle the valve several
times with the manual fuel shutoff cock closed. Make sure the
valve functions properly. Also perform the Valve Leak Test
before putting the valve into service.