Honeywell Honeywell Thermostat V8944B User's Manual

Honeywell Thermostats User's Manual - Honeywell Thermostat V8944B.
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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

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