What is a smart valve on a furnace?

The Smart Valve system uses a 24 VAC powered hot surface pilot gas igniter to ignite the pilot gas. The main gas is ignited in both instances by a pilot gas burner. The Smart Valve system is self-contained, thus eliminating the need for a separately mounted ignition source, usually in the furnace or boiler vestibule.

What is a smart valve?

The Smart Valve is a patented, USA made device that is installed on the user side of your incoming water line that creates a steady back pressure through your water meter. 99% of meters on the market do not recognize the difference between water and air, so they count BOTH as volume!

How do I know if my gas valve is bad on my furnace?

If 24 volts is coming from the board to the gas valve terminals and you don’t hear that little clicking noise the internal valve makes, you could have a bad gas valve. To double-check, take the leads off to the gas valve and check there.

How do you read a Honeywell gas valve number?

Honeywell (SV, V4, V8, VR, VS) – Honeywell valves have a part number format in the form of P(P)NNNNXnnnn. Where P or PP is the prefix denoting the type of valve: SV, V, VR or VS; NNNN is normally four numbers; X is a letter and nnnn are four more numbers.

What is smart positioner in control valve?

Smart valve positioners are digital valve controllers, microprocessor-based, current to pneumatic instruments with internal logic capability. They are designed to convert a current signal to a pressure signal to operate a valve.

How do you diagnose a bad gas valve?

If 24 volts is coming from the board to the gas valve terminals and you don’t hear that little clicking noise the internal valve makes, you could have a bad gas valve. To double-check, take the leads off to the gas valve and check there. Got 24 volts? Then something downstream of that 24 volts is not working.