McDonnell & Miller 193-B Controller THPU32HP7Y Universal Pilot Operation: Utilizes system

Universal Pilot Operation: Utilizes system pressure to assist the shift

120V Control: Optimized for standard 120-volt circuits commonly found in industrial HVAC and automation applications

restoring the self-evacuating functionality required for continuous compressed air management

Automatic Changeover: Transitions between heating (25 psi) and cooling (18 psi) logic based on main air supply pressure

Reliable High-Limit Protection: Integrated Energy Cut-Off (ECO) safety circuit protects the tank and piping by interrupting power if temperatures exceed safe operating parameters

McDonnell & Miller 193-B Controller THPU32HP7Y Universal Pilot Operation: Utilizes systemThe McDonnell & Miller 193 B Controller is a heavy duty, float operated combination low water cut off and pump controller specifically designed for commercial and industrial steam boiler applications. Engineered to handle a maximum pressure of 150 PSI, the 193 B model features a water column with alternate tappings to simplify integration with existing gauge glass and tri cock sets. This unit utilizes two snap acting SPDT switches (Number 5 switches)