Honeywell V4297S Operation manual

PRODUCT DATA

® U.S. Registered Trademark

V4297S

Normally Open Vent Valve

APPLICATION

The V4297S provides the vent function in a double block and

bleed configuration.The valve is part of the Honeywell

Integrated Valve Train System, which allows gas train

components to be directly bolted together.

FEATURES

• Used with natural, manufactured, mixed or liquefied

petroleum (LP) gases.

• V4297S valves are normally open valves to be used as

vent valves in double block and bleed

configurations.The gas flows through the vent

connection when the valve is not energized.

• V4297S are used with 110/120Vac 50/60Hz

controllers.

• Two valve body types (small and large)

applicable to seven pipe sizes:

Small body type for 3/4 in. (19 mm), 1 in. (25 mm),

1-1/4 in. (32 mm), 1-1/2 in. (38 mm) and

2 in. (51 mm) pipes.

Large body type for 2 in. (51 mm),

2-1/2 in. (64 mm) and 3 in. (76 mm) pipes.

• Small body has a 1 in. NPT threaded vent connection.

Large body has a 1-1/4 in. NPT threaded vent

connection.

• Two 1/4 in. NPT threaded pressure taps available for

the small body valve, three for the large body valve.

• NEMA 1 enclosure standard.

• V4297S is not gas flow direction dependent. It can be

connected either way in the valve train.

• Unpainted die-cast aluminum body.

65-0244

V4297S NORMALLY OPEN VENT VALVE

65-0244 2

ORDERING INFORMATION

When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the

TRADELINE® Catalog or price sheets for complete ordering number.

If you have additional questions, need further information, or would like to comment on our products or services, please write or

phone:

1. Your local Home and Building Control Sales Office (check white pages of your phone directory).

2. Home and Building Control Customer Logistics

Honeywell Inc., 1885 Douglas Drive North

Minneapolis, Minnesota 55422-4386 (612) 951-1000

In Canada—Honeywell Limited/Honeywell Limitée, 155 Gordon Baker Road, North York, Ontario M2H 3N7.

International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,

Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.

SPECIFICATIONS

IMPORTANT

The specifications in this publication do not include

normal manufacturing tolerances; therefore, an

individual unit may not exactly match the

specifications listed. Also, this product is tested and

calibrated under closely controlled conditions, and

some minor differences in performance can be

expected if those conditions are changed.

Models:

V4297S Normally Open VentValve.

Type of Gas:

Natural, manufactured, mixed or liquefied petroleum (LP) only.

GasTrain Pipe Size:

3/4 in. (19 mm), 1 in. (25 mm), 1-1/4 in. (32 mm),

1-1/2 in. (38 mm), 2 in. (51 mm), 2-1/2 in. (64 mm),

3 in. (76 mm).

PipeThreads:

Small Body: 1 in. NPT threaded vent connection.

Large Body: 1-1/4 in. NPT threaded vent connection.

Operating Pressure Rating:

Maximum: 5 psi.

Valve Capacity throughVent Connection:

Ratings: 1 in. (0.25 kPa) pressure drop for gas with 0.64 sp gr.

Small Body: 714 cfh.

Large Body: 1115 cfh.

Bolt/Nut Fasteners:

Bolts, nuts and O-rings are provided with the safety shutoff

valves.

Tapping and plug:

Taps:1/4 in.NPT taps.

Plugs: Allen head.

Ambient OperatingTemperature Rating:

-40°F to +145°F (-40°C to +63°C).

Material:

Die-cast aluminum.

Mounting:

Bolted to Integrated ValveTrain components.

Mounting Position:

Vertical to 90 degrees from vertical. See Fig. 1.

Fig. 1. Mounting positions forV4297S

Normally OpenVentValve.

ElectricalTerminations:

Screw terminal connections.

Current Draw:

V4297S small body, 120V: 0.2A.

V4297S large body, 120V: 0.34A.

Valve opening time: < 1 sec.

Valve closing time: < 1 sec.

Dimensions:

See Fig. 2 and 3.

M16462

V4297S NORMALLY OPEN VENT VALVE

65-02443

Fig. 2. Approximate dimensions of smaller V4297 NOVV in in. (mm).

3/8 (10)

(3 HOLES)

2-5/8

(69)

9-1/2

(241)

3-1/8

(79)

3/8 (10)

1/2 (13)

7/8 (22)

4-1/8

(105)

3-1/8 (79) 5 (127)

3/8

(10)

1/2

(13)

1-1/4

(32)

2 (51)

1-1/2

(32)

3/16 (5)

1-1/4

(32)

1-15/16 (49)

2-3/8 (60)

M16464

2 (51)

1 IN. NPT

V4297S NORMALLY OPEN VENT VALVE

65-0244 4

Fig. 3. Approximate dimensions of largerV4297 NOVV in in. (mm).

Weight:

V4297S small body: 5.5 lb (2.5 kg).

V4297S large body: 9.5 lb (4.4 kg).

Replacement Parts:

BBA51316 Coil for small V4297S, complete with wiring box.

BBA51317 Coil for large V4297S, complete with wiring box.

Approvals:

Underwriters Laboratories Inc.: Listed.

Industrial Risk Insurers (formerly FIA): Acceptable.

International Approval Services (IAS): Design Certified.

2-5/8

(69)

(76)

1-1/2

(38)

5/16 (8)1/2 (13)

3/4

(18)

3/4

(18)

2 (51)

5 (127) 8 (203)

1-1/2

(32)

3/16 (5)

M16465

(51)

12-3/8

(314)

3-1/8

(79)

1/2 (13) 4-1/2 (114)

5/8

(16)

1 (25)

1-1/4 IN.

NPT

1/2 (13)

(3 HOLES)

V4297S NORMALLY OPEN VENT VALVE

65-02445

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).

RM7800

(TYPICAL)

120 Vac

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 ofV4297 NOVV.

Fig. 5.Typical wiring diagram forV4297 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.

V4297S NORMALLY OPEN VENT VALVE

65-0244 6

Valve Leak Test

This is a test for checking the closure tightness of the gas

valve. It should be performed only by trained, experienced,

flame safeguard control technicians during the initial startup

of the burner system, or whenever the valve is replaced.

1. Energize the V4297S to close the vent connection.

2. Close the manual gas cock downstream of the second

Safety Shutoff Valve (SSOV).

3. Turn on main gas and make sure the gas reaches the

V4297S (energize the first SSOV).

4. Check the V4297S for gas leaks using a gas leak

detector or a soap solution.

TROUBLESHOOTING

WARNING

Electrical Shock Hazard.

Can cause serious injury or death.

Use extreme caution while troubleshooting; line

voltage is present.

IMPORTANT

Do not replace the valve until all other sources of

trouble are eliminated.

Troubleshooting Procedure

If the valve does not close when the thermostat or controller

is calling for heat:

1. Check for line voltage at the valve lead wires or terminal

block.

2. If there is no voltage at the valve lead wires or terminal

block, make sure:

a. line voltage power is connected to the master

switch;

b. master switch is closed and overload protection

(circuit breaker, fuse or similar device) has not

opened the power line.

3. If there is still no voltage at the valve lead wires or

terminal block, make sure all appropriate contacts in the

thermostat or controller, limits and flame safeguard

controls are closed. If one or more are open, determine

the cause(s); correct the trouble, and proceed.

4. If there is proper voltage at the valve but the valve still

does not close, check for normal gas pressure.

5. If the valve still does not close, replace the valve.

If the valve does not open when one or more of the

appropriate contacts in the thermostat, controller, limits or

flame safeguard control is open:

1. Make sure the valve is wired in the correct circuit.

2. Open the master switch to remove power from the

valve.

3. If the valve opens now, check the wiring for the valve

and correct the wiring as necessary.

4. Check for a short in the electrical circuit and repair it as

necessary.

SERVICE INFORMATION

WARNING

Explosion and Electrical Shock Hazard.

Can cause explosion, serious injury or death.

1.Turn off the gas supply and disconnect all electrical

power to the valve before servicing.

IMPORTANT

Only trained, experienced flame safeguard control

technicians should attempt to service or repair flame

safeguard controls and burner assemblies.

Scheduled Inspection and Maintenance

Set up and follow a schedule for periodic inspection and

maintenance, including the burner, all other controls, and the

valve(s). It is recommended that the valve leak test in the

Checkout section be included in this schedule. Refer to the

instructions for the primary safety control(s) for more

inspection and maintenance information.

V4297S NORMALLY OPEN VENT VALVE

65-02447

V4297S NORMALLY OPEN VENT VALVE

65-0244 8

Honeywell Europe S.A.

3 Avenue du Bourget

1140 Brussels

Belgium

Honeywell Asia Pacific Inc.

Room 3213-3225

Sun Hung Kai Centre

No. 30 Harbour Road

Wanchai

Hong Kong

Home and Building Control

Honeywell Limited-Honeywell Limitée

155 Gordon Baker Road

North York, Ontario

M2H 3N7

Honeywell Latin American Region

480 Sawgrass Corporate Parkway

Suite 200

Sunrise FL 33325

65-0244 G.R. 6-99

Home and Building Control

Honeywell Inc.

Honeywell Plaza

P.O. Box 524

Minneapolis MN 55408-0524

www.honeywell.com

Printed in U.S.A. on recycled

paper containing at least 10%

post-consumer paper fibers.

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