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a field-adjustable pressure switch should be sourced

the Sporlan 3552-00 allows for brazing without disassembly

designed for seamless physical and electrical integration into existing Goodman and Amana wiring harnesses

Johnson Controls T-4756-205 Thermostat Els PW 29614 What does '1The Johnson Controls T 4756 205 is a professional grade horizontal pneumatic thermostat designed for high volume dual temperature control in commercial pneumatic HVAC systems. Engineered for heating cooling changeover applications, this unit operates with a 15 psig reverse acting signal for heating and a 20 psig direct acting signal for cooling. The high volume output relay ensures rapid response times and consistent pressure delivery to terminal