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This HVAC circuit board is engineered to monitor safety circuits and coordinate 24VAC thermostat signals with high-voltage outputs
providing versatile switching options for complex boiler logic
Environmental Resilience: Features a water-resistant
the M333A00 is the direct replacement for M133A00
BASO C661PGA-1C Ignition Module Els PW 17895 This HVAC circuit board isThe BASO C661PGA 1C Ignition Module is a robust intermittent pilot ignition control engineered for precision in gas fired heating systems. Operating on a 24V AC circuit, this module features a 15 second pre purge cycle and an 8 second Trial for Ignition (TFI), ensuring safe and reliable pilot flame sensing. Designed for professional field service, the C661PGA 1C serves as a high performance HVAC replacement part, maintaining system integrity in
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