When the sensed temperature hits the upper threshold
Always check the flue gas path and perform a draft test before putting the unit back into service
Does this switch work with plastic tubing
specifically engineered for strip chart recorders
this 760-56 electrode delivers the consistent conductivity required for modern HVAC flame rectification circuits
ICM Controls ICM2920 Ignition Control R-410A When the sensed temperature hitsThe ICM Controls ICM2920 Ignition Control is a form, fit, and functional direct replacement for PCBAG123S and PCBAG123, engineered specifically for Goodman spark ignition furnace systems. This microprocessor based automated gas ignition control board monitors the critical heating sequence, including the inducer, pressure switch, spark ignition, and gas valve, while maintaining high level safety monitoring for limit and rollout switches. Designed for