What is the purpose of the SPDT contact in this air switch

Replacing a deteriorated or misshapen burner head restores the optimal fuel efficiency of the system and prevents carbon buildup within the combustion chamber

Maintenance-Friendly Calibration: Features a recalibrateable dial to maintain high-level accuracy over the life of the instrument

This 2 Heat / 1 Cool stage thermostat provides veteran HVAC contractors with a reliable

Installation is streamlined via the 1/4" flare with valve depressor and a DIN plug with 36" cable

BASO C664BEA-1C Control 30067439-890 What is the purpose ofThe BASO C664BEA 1C is a specialized intermittent pilot ignition control designed for 24VAC gas fired atmospheric burners using a remote flame sensor. This industrial grade module provides a 25 second trial for ignition (TFI) and features a 4 pin plug in connector for streamlined installation in commercial and residential heating systems. Engineering wise, this unit serves as the direct OEM replacement for legacy models including the BG1600M10FF 1AA,