heating and cooling coils

ensuring the inducer motor is generating adequate static pressure before allowing the ignition sequence to proceed

During boiler service

a crankcase heater is highly recommended to prevent liquid migration during the off-cycle

Carrier HH18SA100 Temp Act 320788-704 heating and cooling coilsThe Carrier HH18SA100 Temperature Actuator is a critical OEM replacement component engineered for integrated climate control within commercial and industrial HVAC systems. Designed for precision temperature regulation, this switch style actuator functions as a dedicated thermal gatekeeper, cycling heating or cooling stages based on real time feedback from high sensitivity thermal sensors to maintain tight setpoint tolerances. Operating with a