By replacing the diaphragm and seal components

Broad Fluid Range: Rated for a specific gravity range of 0

Fail-Safe Operation: The 3-6 PSI spring return mechanism guarantees the valve returns to its normally open state during pneumatic signal failure

or head pressure in demanding environments

The Maxitrol 325-3-1/2-RED can be used with a 12A09 vent limiting device for indoor installations where local codes permit

Trane CNT4365 Defrost Control 340793-762 By replacing the diaphragm andThe Trane CNT4365 Defrost Control is a critical OEM replacement board designed to manage the initiation and termination of defrost cycles in residential heat pump systems. This solid state control board utilizes advanced logic to monitor evaporator coil temperatures, preventing excessive ice accumulation that can lead to compressor slugging or total system failure. By accurately timing the reversing valve operation and fan motor shutoff, the CNT4365