ensuring a fast thermal response for Lochinvar Copper-Fin CB-CW-CS series boilers

The circuit design incorporates an integrated combustion blower relay with a 15-second pre-purge and a 30-second post-purge cycle to clear the combustion chamber effectively

This high-precision HVAC valve linkage is critical for field retrofits where existing valves like the V5045 or VGF series need to be paired with modern direct-coupled actuators such as the Honeywell ML6984 or ML7984

Smith 100170436

Lennox 40K82 Control Board R-407C ensuring a fast thermal responseThe Lennox 40K82 Control Board, also identified as the BDC3 1 Blower Circuit Control Module (Part # 40K8201), is a critical OEM component manufactured by Computime (LEN408C) for high performance Lennox residential and light commercial HVAC systems. Operating on a 24V circuit with a 1 Amp rating, this board serves as the primary blower motor control relay and timing module, ensuring precise airflow management during both heating and cooling cycles.