This 040-0166-21 type relay is a standard 3-screw terminal configuration

ensuring a code-compliant installation in demanding commercial HVAC environments

OEM Compatibility: Specifically designed for select York

or a solenoid "clicking" without the slide shifting

preventing hazardous accumulation

Bard HVAC 9022-095 Primary Refrigerant This 040-0166-21 type relay isThe Bard 9022 095 Genisys Primary Control with pre purge functionality is a critical component for maintaining precise combustion cycles in high performance oil fired heating systems. Designed to serve as a direct replacement for Beckett Genisys 7505P series controls, this 120V AC unit manages the oil burners ignition, flame sensing, and motor control with industrial grade reliability. The integrated pre purge timing ensures the combustion chamber is