Sit valve is used on most fireplaces produced after 1999. Uses Thermopile and Thermocouple (quick drop out) ... The automatic shut-off valve provides particularly silent operation and is supplied by thermopile, without requiring external electrical energy. Pilot outlet flow is adjustable.
How do you test a gas valve on a sit?
https://www.youtube.com/watch?v=P_yoGKqFjOo
What are the 3 classifications of gas valves?
- Angle valves admit gases at an angle and allow for maximum flow.
- Balancing valves maintain a consistent temperature and compensate for pressure drops.
- Ball valves provide tight shut-offs, but are not suitable for sanitary applications.
- Butterfly valves permit flow in only one direction.
How do I know if my gas valve is bad?
If you notice strange noises from your furnace, airflow distribution is weak, or it starts to cycle between on and off settings continuously, you likely have problems that don't involve the gas valve. A service visit to troubleshoot the problem is needed.Dec 13, 2019
What is the on position for a gas valve?
The long side of your handle is parallel to the incoming gas line, which means your gas in on and flowing. By turning the handle perpendicular to the incoming pipe, you are closing the valve and shutting off the gas.
Do gas valves have a direction?
They are non directional. Choose your direction from which way you want the valve to turn to operate it.
What causes a gas valve to fail?
The valve itself may have simply worn out or may be damaged due to basement seepage or submersion. Alternately, one of the electronic gas ignition components or a glitch in the safety circuit may be to blame. If your furnace has a standing pilot light, the thermocouple could be worn out.