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the DPST configuration allows for various wiring schemes to handle compressor cycling or safety lockout functions depending on the terminal connections
Common causes include a blocked flue pipe
this normally closed unit ensures a fail-safe return to the home position upon loss of power
The dual-powered design supports either a hardwired "C" wire or battery operation via two AA batteries
Carrier LH33WP007 Control Board 321702-401 the DPST configuration allows forThe Carrier LH33WP007 Ignition Control Board is a factory authorized OEM replacement engineered for high performance 24VAC furnace and packaged unit applications. As a critical HVAC furnace control board, this module manages the entire ignition sequence, including spark ignition, flame sensing, and gas valve regulation. Built for 60Hz systems, the Carrier LH33WP007 ensures precise timing and burner operation, providing a direct drop in solution that