preventing catastrophic pressure buildup

Once the system cools to the 35°F close point

This switch is a direct replacement for various Intertherm

the small black cap should be loosened one full turn to allow air to escape

Enhanced Fuel Efficiency: Precision-calibrated natural gas flow regulation prevents over-firing and reduces overall energy consumption

Resideo R4222D1013 Relay 318172-701 preventing catastrophic pressure buildupThe Resideo R4222D1013 Relay is a heavy duty, field proven switching solution designed for refrigeration, air conditioning, and industrial automation equipment. This 120V DPDT General Purpose Relay features a double pole, double throw contact configuration, allowing for simultaneous control of multiple circuits. Built with a laminated magnet construction for superior operating efficiency and an untaped coil for cooler performance under continuous