McDonnell & Miller TC-4 Valves THPU32HP7Y While often utilized in liquid

While often utilized in liquid and steam systems

Key Benefits Versatile Coil Inputs: Supports low voltage (24V) and high voltage (208 to 277V) triggers for broad system compatibility

or improper control signal calibration

making it a reliable choice for maintaining optimal boiler operation and protecting against carbon monoxide buildup

Always cross-reference your specific model number with the HVAC parts manual to ensure correct manifold configuration

McDonnell & Miller TC-4 Valves THPU32HP7Y While often utilized in liquidFor industrial boiler applications requiring precise low water cut off (LWCO) verification, the McDonnell & Miller TC 4 Test and Check Valves (Part Number 195000) provide a critical interface for maintenance and safety compliance. This 1" NPT dual valve set is engineered specifically for use with McDonnell & Miller controllers, allowing technicians to isolate the water column and simulate low water conditions without draining the entire system.