and vibration common in mechanical rooms

What is the purpose of the 4-8"wc spring range

Can the check valve be serviced or replaced

investigate the heat exchanger for cracks

Can I install this myself

Robertshaw 5000-071 Thermostat THPU32HP7Y and vibration common in mechanicalThe Robertshaw 5000 071 is a high capacity, heavy duty commercial electric thermostat designed for demanding process control applications where precision is paramount. This 5000 Series (D1 style) control features a Double Pole Single Throw (DPST) snap action mechanism with a positive "OFF" position, making it an essential component for high amperage systems. Rated for 30 Amps at 120 277V AC and up to 10 Amps at 480V AC, it provides reliable switching