Honeywell V4730C Manuale utente

Product data

EN2R-9074 0612R1-NE

V4730C/V8730C/V4734C

1:1 Gas/Air Servo Regulated Gas Valves

Note: Photo shows valve with manual safety shutoff valve and

venturi installed.

CONTENTS

Application ..........................................................1

Features ..............................................................1

Specifications ......................................................2

Ordering Information.............................................3

Installation ..........................................................13

Electrical Connections ........................................14

Adjustments and Final Checkout ........................14

Operation ...........................................................15

Troubleshooting..................................................16

Service Information ............................................16

APPLICATION

The V4730C/V8730C/V4734C 1:1 Gas/Air Servo Regulated Gas

Valves, with the addition of the Venturi Mixing Unit (VMU) and dc

fan, are used for modulating premix appliances such as gas bur-

ners, gas boilers, rooftop units, makeup air units and process ap-

plications.

FEATURES

• Wide modulation range (14% to 100% of burner load).

• 24 Vac and 120 Vac models.

• Main valve body with two shutoff seats (double block valve).

• Closing time less than one second.

• Mesh screen (strainer) between inlet flange and main body.

• Various pressure tap points available at main body when no

additional valves or pressure switches are used.

• DIN 43650 Plug Connector with 36-in. (914 mm) leadwires

included.

• Flexible mounting positions of venturi manifold to fan.

• Replaceable pipe flange adapters available.

• Position indication lamp for each valve stage

V4730C/V8730C/V4734C 1:1 Gas/Air Servo Regulated Gas Valves

2 EN2R-9074 0612R1-NE

SPECIFICATIONS

The specifications in this section are related to the Venturi

Mixing Unit (VMU) and Combination Gas Valve.

Models: See Table 1

aWhen used with VMU335 Venturi UnitAnwendung

Table 1: Model Information

Model Number Size (in.) Voltage/Frequency V1 + V2 Total Current Capacity (Natural Gas 0.64sp.gr)

V4730C1006 1/2 120 Vac, 50/60 Hz 0.32 A 22-150 kW (73-512 kBtuh)

V4730C1014 3/4 43-300 kW (146-1024 kBtuh)

V4730C1022 1 0.5 A

V4730C1030 1-1/4 55-382 kW (185-1300 kBtuh)a/71 -

500 kW (245-1710 kBtuh)

V4734C1002 1-1/4 120 Vac, 50/60 Hz 2.6 A at start

1.04 A during operation

97-680 kW (326-2287 kButh)

when used with VMU680 unit

V8730C1007 1/2 24 Vac, 50/60 Hz 1.56 A 22-150 kW (73-512 kBtuh)

V8730C1015 3/4 43-300 kW (146-1024 kBtuh)

V8730C1023 1 1.72 A

V8730C1031 1-1/4 55-382 KW (185-1300 kBtuh)a/71 -

500 KW (245-1710 kBtuh)

Maximum Operating Pressure (UL):

1.45 psi (100 mBar), except for 1-1/4 in. size:

(24V): 1 psi (70 mBar).

(120V): 1.45 psi (100mBar)

CSA Approved: 0.5 psi (34 mBar).

Note: CSA Certification to 1/2 psi.

Connections:

1/8 in. (3 mm) NPT pressure taps at inlet and outlet flanges. Eight

flange connections are provided at the main body to mount either

a pressure switch (high or low) or a ValveProving System (VPS).

Torsion and Bending Stress:

Pipe connections meet EN151, Group 2, requirements.

Electrical Equipment:

Standard DIN plug connector with 36-in. (914 mm) leadwires.

Valve Position Indicator Lamps:

Inboard (closest to the valve body) - V1.

Outboard - V2.

Ambient Temperature Range:

5°F to 140°F (-15°C to +60°C).

Coil Insulation Solenoid Valves:

Class H insulation system.

Body Material:

Aluminum alloy, die-cast

Strainer:

Fine mesh screen (0.135 in. [0.34 mm] diameter). AISI 303 steel,

serviceable after removing inlet flange screws. Meets EN161 re-

quirements for strainers

Seals and Gaskets:

Hydrocarbon-resistant NBR and Viton rubber types.

Flange Kit:

Consists of one flange with sealing plug, one O-ring and four

screws. See Table 2.

Note: Valve comes with one kit only.

Manual Shut-Off Valve Kits:

50002653-001 for use with 1 in. NPT or smaller valves.

50002653-002 for use with 1-1/4 in. NPT valves.

Table 2: Flange Kits.

Part Number Size NPT in in. (mm)

32006652-001 1/2 (13)

32006652-002 3/4 (19)

32006652-003 1 (25)

32006652-004 1-1/4 (32)

V4730C/V8730C/V4734C 1:1 Gas/Air Servo Regulated Gas Valves

EN2R-9074 0612R1-NE 3

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 informati-

on, or would like to comment on our products or services, please

write or phone:

1. Your local Honeywell Automation and Control Products Sales

Office (check white pages of your phone directory).

2. Honeywell Customer Care

1885 Douglas Drive North

Minneapolis, Minnesota 55422-4386

In Canada - Honeywell Limited/Honeywell Limitée, 35 Dynamic

Drive, Scarborough, Ontario M1V 4Z9.

International Sales and Service Offices in all principal cities of the

world. Manufacturing in Australia, Canada, Finland, France, Ger-

many, Japan, Mexico, Netherlands, Spain, Taiwan, United King-

dom, U.S.A.

Opening Time:

Dead time maximum: 1 second.

First valve opening: less than 1 second.

Second valve opening: reaches 50% of the adjustable outlet

pressure within 5 seconds.

Maximum Allowable Leakage:

Outerwall: 3 cu. in./hr (50 cm3/h) at test pressure of 0.87 psi

(6 mBar) and 7.83 psi (540 mBar).

First Valve: 2.5 cu. in./hr (40 cm3/h) at test pressure of 0.87 psi

(6 mBar) and 7.83 psi (540 mBar).

Second Valve: 2.4 cu. in./hr (40 cm3/h) at test pressure of

0.87 psi (6 mBar) and 7.83 psi (540 mBar).

High Pressure Test:

In the OFF condition, the valve will withstand 21.75 psi (1.5 Bar)

inlet pressure without damage.

Accessories:

FL020008 Mesh Screen.

Flange Kits (see Table 2).

DIN43650 Connector

32006653-001 Venturi O-rings/screws.

Operational Voltage Range:

The combination gas valve will function satisfactorily between

85% and 110% of the rated voltage.

Gas Valve Connection to Venturi (Field-Assembled):

Four screws and an O-ring are used to connect the gas valve to

the venturi/manual shutoff valve.

The metal tube provided with the venturi must be connected bet-

ween the venturi and the gas valve regulator.

Fan Connection:

The venturi is connected to the fan using six bolts (wich are inclu-

ded with VMU).

Minimum Load:

The minimum load for which the system can be used is

14-17% of the reference load, which equals a minimum

pressure differential of 0.2 in. wc (50 Pa) of the 1:1

venturi/servo regulator gas control.

Approvals:

Gas Appliance Directive 90.396/EEC

ANSI: Z21.21

CSA: 6.5

Capacity Curves:

See Fig. 9 to 14.

Dimensions:

See Fig. 1 to 5

V4730C/V8730C/V4734C 1:1 Gas/Air Servo Regulated Gas Valves

4 EN2R-9074 0612R1-NE

Fig. 1: V4730C/V8730C Gas Valves, 1/2 in. (13 mm) and 3/4 in. (19 mm) size, dimensions in in. (mm).

Fig. 2: V4730C/V8730C Gas Valves, 1 in. (25 mm) size, dimensions in in. (mm).

V4730C/V8730C/V4734C 1:1 Gas/Air Servo Regulated Gas Valves

EN2R-9074 0612R1-NE 5

Fig. 3: V4730C/V8730C Gas Valves, 1-1/4 in. (32mm) size, dimensions in in. (mm).

Fig. 4: V4734C Gas Valves 1-1/4 in. (32mm) size, dimensions in in. (mm).

V4730C/V8730C/V4734C 1:1 Gas/Air Servo Regulated Gas Valves

6 EN2R-9074 0612R1-NE

Fig. 5: Venturi 150-335 kW, with 1/2 in. to 1 in. gas valves and valve shutoff kit installed dimensions in in. (mm). See Table 3 for

dimensions

Table 3: Dimensions in inches (millimeters)

Valve Size in inches A B C D

1/2, 3/4 6 - 1/4 (159) 15 - 15/16 (405) 2 - 15/16 (75) 7 -7 1/2 (191)

18 - 5/16 (211)

V4730C/V8730C/V4734C 1:1 Gas/Air Servo Regulated Gas Valves

EN2R-9074 0612R1-NE 7

Fig. 6: Venturi 500kW, with V4730 gas vlave and valve shutoff kit installed, dimensions in in. (mm), part 1.

V4730C/V8730C/V4734C 1:1 Gas/Air Servo Regulated Gas Valves

8 EN2R-9074 0612R1-NE

Fig. 7: Venturi, 500 kW, with V4730 gas valve and valve shutoff kit installed, dimensions in in. (mm), part 2

V4730C/V8730C/V4734C 1:1 Gas/Air Servo Regulated Gas Valves

EN2R-9074 0612R1-NE 9

Fig. 8: V4734 + VMU 500/680

V4730C/V8730C/V4734C 1:1 Gas/Air Servo Regulated Gas Valves

10 EN2R-9074 0612R1-NE

Fig. 9: Capacity curves for V4730C/V8730C and VMU 150 Venturi, 1/2 in. size.

Fig. 10: Capacity curves for V4730C/V8730C and VMU 300 Venturi, 3/4 in. size

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