The watts 201 5 valve shown will shut off the gas supply if water temperature exceeds 210 f.
Furnace gas shut off valve.
Ultimately the thermocouple acts as a safety mechanism that prevents gas buildup within the home.
Turn the handle perpendicular with the pipe to close the valve and parallel to open the valve.
Visual signs of lp gas leakage at an appliance gas valve.
As a result this cuts off the supply of gas to the pilot light.
Again handle parallel to the line means gas is flowing perpendicular means it s cut off.
A broken furnace shut off valve is a serious problem that must be attended to as soon as it is realized.
A gas shut off valve can be found in most modern gas appliances.
They are designed to close the gas supply if the pilot light flame does not come on or if it is extinguished for some reason.
Local shut off valves local shutoff valves have handles that limit the flow of gas to a specific appliance.
Most service valves are single lever ball valves.
A 24 vac transformer or the thermopile powers the main valve.
Without adequate heating of the thermocouple or thermopile the furnace gas valve closes.
In order to ensure safety when working on other parts of the furnace the shut off valve stops the flow of oil hot water or other type of material that the furnace uses to create the heat.
The shut off valve stands in between the oil supply and the actual furnace itself.