This kit features a 4 to 8 psi spring range

the Watts N36 vacuum relief valve features a silicone disc and a 302 stainless steel spring

the NEMA 4X enclosure is designed to protect internal components against windblown dust

you know that keeping a system clean is the only way to prevent callbacks and compressor failure

Johnson Controls T-4756-201 Thermostat Refrigerant This kit features a 4The Johnson Controls T 4756 201 is a professional grade pneumatic heating cooling thermostat engineered for high volume air distribution in commercial HVAC systems. This dual temperature control unit operates with distinct pressure actions: 15 psig direct acting for heating and 20 psig reverse acting for cooling. Designed for horizontal mounting, this robust controller ensures seamless transitions between seasonal cycles by managing pneumatic actuator