User Guide
Table Of Contents
PRODUCT DATA
65-0212-2
V4943A/V8943A
On/Off Diaphragm Gas Valves
APPLICATION
The V4943A and V8943A are solenoid-operated diaphragm
valves suitable for Liquefied Petroleum (LP) and natural
gases. They are normally used on atmospheric boilers,
commercial water heaters, and rooftop heaters.
FEATURES
• V4943A used with line voltage, two-wire thermostat or
controller.
• V8943A used with 24 Vac thermostat or controller.
• Valves open in less than six seconds.
• Rated for 0.5 psi (3.4 kPa).
• Rated for -40°F to +150°F (-40°C to 66°C).
• Firm closing; diaphragm is spring-loaded.
• Valves close on power failure; recommended for final
shutoff service.
• 1/4 in. (6 mm) spade terminal electrical connections.
Leadwires and cover for electrical conduit connections
are provided.
• Designed as replacement valves for V4843A/V8843A.
Contents
Application......................................................................... 1
Features ............................................................................ 1
Specifications .................................................................... 2
Ordering Information ......................................................... 2
Installation ........................................................................ 4
Wiring ................................................................................ 6
Operation........................................................................... 7
Checkout and Troubleshooting.......................................... 7