Honeywell V8943C User Manual

7

65-0214—08

1. Read these instructions carefully. Failure to follow them 

could damage the product or cause a hazardous 

condition.

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 completed, check out product opera-

tion as provided in these instructions.

1. Turn off gas supply before starting installation.

2. Disconnect power supply before beginning 

installation to prevent electrical shock and equipment 

damage.

3. Do not remove seal over valve inlet or outlet until 

ready to connect piping. 

1. Use new, properly reamed pipe free from chips.

2. Do not thread pipe too far. Valve distortion or malfunction 

can result from excess pipe in valve.

3. Apply good quality pipe dope resistant to the action of LP 

gas; put a moderate amount only on the pipe threads. If 

pipe dope lodges on the valve seat, it will prevent proper 

closure.

4. Install the valve in a horizontal pipe line in an upright 

position with the gas flow in the direction indicated by the 

arrow on the casing. The valve must be upright 

(electrical connection tower in the up position) on a 

horizontal axis with respect to the inlet connection 

(see Fig. 10). Certain models may be mounted in the 

limited horizontal position (any position from upright to 

90 degrees to upright on an horizontal axis with respect 

to the inlet connection. See Specifications section.)

5. Apply a parallel jaw wrench only to the flat next to the 

pipe being inserted. A wrench applied to the valve body 

itself or to the end farthest from the pipe being inserted 

can distort the casting and cause a malfunction.

6. The gas flow must be in the same direction as the arrow 

on the bottom of the valve body.

If flow is not in direction of arrow, valve may not 

shut off; which can cause excess gas and harm to 

equipment or personnel.

7. Make electrical connections as illustrated in the wiring 

diagrams (see Figs. 11–14).

8. Turn on the main gas and, with a soap solution, check 

the valve installation for leaks.

9. The V4943/V8943, V4944/V8944 combination valve 

pressure regulating sections are provided with integral 

vent limiters.