Flame Rod Sensor Circuit

The sensor needs to be cool to the touch when you clean it so it doesn t melt the scotchbrite pad and leave a residue on the flame rod.

Flame rod sensor circuit.

In a nutshell the flame rectification system is an electrical process that causes a low level dc current to be conducted from the. Most every flame rod system i have worked on puts and ac voltage on the flame rod. Quick response to flame failure. It is essentially fail safe.

If proof of flame is not present the icm will de energize the gas valve and retry for ignition or lockout. Once the board sends a call to the gas valve to open it monitors the current flow on the flame sensing rod. It does this by generating a potential voltage at the flame sensing terminal this terminal is connected to the sensor with a conductor. Flame rods have the following advantages.

I am sensing a flame using a flame rod. Troubleshoot flame sensor the flame sensor in any furnace proves combustion. Connect a micro amp meter in series with this wire and the. Flame rods are found on nearly all induced draft burner systems and on many forced draft burners.

Flame rods are found on nearly all induced draft burner systems and on many forced draft burners. Disconnect the flame sensor wire from sensor. This video is part of the heating and cooling series of. After cleaning you should reinstall the flame sensor and take another reading in order to see how much you improved flame signal.

Proves flame at the point of ignition. Also some tips for servicing. If abnormal situations exist such as open circuits short. This is known as a flame sensor or flame rod.

The other connection in the circuit is the flame being in contact with a metal surface that acts as a ground. A special metal rod is mounted in the path of the flame. In a nutshell the flame rectification system is an electrical process that causes a low level dc current to be conducted from the. The flame rod in your picture is not a thermocouple.

This is known as a flame sensor or flame rod. This one explains the electronics behind the flame rod control system. To troubleshoot flame sensor. Flame sensing rods stick out into the flame and connect back to the furnace board.

A special metal rod is mounted in the path of the flame. The cpfs circuit 31 of the flame detector generates a comparable microampere dc current in response to a flame pulse signal in the 10 500 hz frequency range so that the uv flame detector can be used in place of a flame rod sensor with an existing burner control combustion safeguard circuit. When no flame.