Maintaining the correct 7

Look for visible cracks in the metal

monitoring the micro-amp signal generated when the probe is engulfed in the burner flame

providing a precise

MARS 33247 Thermal Time Delay Maintaining the correct 7The MARS 33247 Thermal Time Delay is a field proven SPDT N O sequencer designed for precision timing in residential and commercial HVACR systems. Engineered to handle high current electric heat and air conditioning loads, this 24V control voltage relay utilizes a solid state PTC device and a snap acting disc to ensure positive make break action. With a delay on make range of 124 seconds and a delay on break range of 1575 seconds, this 33247 sequencer