Johnson Controls P400AD-1 Pressure Switch Refrigerant Engineered for mission-critical commercial refrigeration

Engineered for mission-critical commercial refrigeration

Excessive heat during the sweat connection process can damage internal seals and the diaphragm

By utilizing this specific boiler control fitting

If the switch fails open

When should this T&P relief valve be replaced

Johnson Controls P400AD-1 Pressure Switch Refrigerant Engineered for mission-critical commercial refrigerationSingle Point Differential Oil Pressure Switch, 7. 0 1 Psid Open Point ( Differential Pressure ), Less than or Equal to 2 Psid Close Point ( Differential above Open Point ), 3 4" Threads, Includes Wiring Harness ( WHA P400 100 ) P400AD 1 is the direct replacement for P300AD 1