since this is a mechanical spring wound timer

Key Benefits Precise Dual Monitoring: Combined 0-75 PSI and 70-250°F scales allow for simultaneous tracking of thermal and hydraulic conditions

As long as your heater utilizes a 1-inch screw-in flange and has at least 14 inches of internal clearance

as this may violate local safety codes and change the intended sequence of operation for the equipment

The unit features one DPST switch and one SPDT switch

Schneider Electric (Barber Colman) AK-42309-500 Relay Els PW 29614 since this is a mechanicalThe Schneider Electric (Barber Colman) AK 42309 500 is a direct acting pneumatic relay designed for high precision force balance position sensing. Built for the rigorous demands of commercial HVACR systems, this positive positioning relay ensures an actuator's stroke remains consistent relative to the signal pressure received from the controller. It effectively handles variations in air pressure and mechanical load, making it a critical component for