Honeywell Thermostat V8943C Manual do Utilizador descarregar pdf

PRODUCT DATA

65-0214-08

V4943/V8943B,C,N;

V4944/V8944B,C,L,N

Regulating Diaphragm Gas Valves

APPLICATION

The V4943/V8943B and N (single stage) and V4944/V8944B

and N (two stage) are solenoid-operated diaphragm valves

suitable for natural gas only. The V4943/V8943C and

V4944/V8944C and L are solenoid-operated diaphragm

valves suitable for Liquefied Petroleum (LP) gas only. These

valves are used on boilers, unit heaters, duct furnaces,

makeup air and rooftop heaters.

FEATURES

• Models are available for natural or liquid petroleum

(LP) gases.

• Valve models L, N are rapid opening (less than six

seconds) and fast closing, and are available for LP and

natural gases, respectively.

• Line voltage with two-wire thermostat or controller is

used with V4943; V8943 is used with 24V thermostat or

controller.

• V4944 is used with line voltage dual-stage thermostat

or controller; V8944 is used with 24V dual-stage

thermostat or controller.

• Slow opening B,C valve models are available for

natural and LP gases respectively.

• Valve closes on power failure; recommended for final

shutoff service.

• Valve closing time: 2 seconds maximum at 7 inches wc

inlet pressure.

• Valves rated for 0.5 pound per square inch (psi) (3.4

kPa).

• Leadwires and cover for electrical conduit connections

are provided.

Contents

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

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

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

Ordering Information ........................................................ 2

Installation ........................................................................ 6

Operation .......................................................................... 9

Checkout and Troubleshooting ......................................... 10

Service Information .......................................................... 12

1 2 3 4 5 6 ... 11 12

Resumo do Conteúdo

Página 1 - V4944/V8944B,C,L,N

PRODUCT DATA65-0214-08V4943/V8943B,C,N; V4944/V8944B,C,L,N Regulating Diaphragm Gas ValvesAPPLICATIONThe V4943/V8943B and N (single stage) and V4944/V

Página 2 - SPECIFICATIONS

V4943/V8943B,C,N; V4944/V8944B,C,L,N REGULATING DIAPHRAGM GAS VALVES65-0214—08 10Operation of the V4943B,C,N/V8943B,NThe V4943/V8943B,C,N Valves are c

Página 3 - 3 65-0214—08

V4943/V8943B,C,N; V4944/V8944B,C,L,N REGULATING DIAPHRAGM GAS VALVES11 65-0214—08Checkout1. Valve outlet pressure measurements are made at a point app

Página 4 - Gas Valve Sizing

V4943/V8943B,C,N; V4944/V8944B,C,L,N REGULATING DIAPHRAGM GAS VALVESAutomation and Control SolutionsHoneywell International Inc.1985 Douglas Drive Nor

Página 5 - PRESSURE DROP (IN. WC)

V4943/V8943B,C,N; V4944/V8944B,C,L,N REGULATING DIAPHRAGM GAS VALVES65-0214—08 2ORDERING INFORMATIONWhen purchasing replacement and modernization prod

Página 6 - INSTALLATION

V4943/V8943B,C,N; V4944/V8944B,C,L,N REGULATING DIAPHRAGM GAS VALVES3 65-0214—08Pressure Reference Port Vent: 5/16–24 UNF internal tapping.Standard Fa

Página 7 - 7 65-0214—08

V4943/V8943B,C,N; V4944/V8944B,C,L,N REGULATING DIAPHRAGM GAS VALVES65-0214—08 4Fig. 1. V4943/44 and V8943/44 dimensions in in. (mm).Gas Valve Sizing1

Página 8 - 65-0214—08 8

V4943/V8943B,C,N; V4944/V8944B,C,L,N REGULATING DIAPHRAGM GAS VALVES5 65-0214—08Fig. 3. Capacity vs. pressure drop of Natural Gascurves for 1-1/4 in.

Página 9 - OPERATION

V4943/V8943B,C,N; V4944/V8944B,C,L,N REGULATING DIAPHRAGM GAS VALVES65-0214—08 6Fig. 7. Capacity vs. pressure drop of LP Gascurves for 1-1/4 in. valve

Página 10 - TROUBLESHOOTING

V4943/V8943B,C,N; V4944/V8944B,C,L,N REGULATING DIAPHRAGM GAS VALVES7 65-0214—08When Installing this Product...1. Read these instructions carefully. F

Página 11 - Checkout

V4943/V8943B,C,N; V4944/V8944B,C,L,N REGULATING DIAPHRAGM GAS VALVES65-0214—08 8Fig. 10. Preparing the piping and installing the valve.WiringWARNINGEl

Página 12 - SERVICE INFORMATION

V4943/V8943B,C,N; V4944/V8944B,C,L,N REGULATING DIAPHRAGM GAS VALVES9 65-0214—08Fig. 11. Typical wiring diagram for V4943B,N.Fig. 12. Typical wiring d

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Honeywell Thermostat V8943C Manual do Utilizador

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