McDonnell & Miller 150S-M Pump Controller Refrigerant The Robertshaw 1950-002 Thermopile is

The Robertshaw 1950-002 Thermopile is a field-proven millivolt pilot generator engineered for self-powered gas control systems in wall furnaces

Technicians should verify the WC rating and normally open contacts during diagnostic cycles to prevent inducer motor pressure switch lockout

Key Benefits Reduced Installation Labor: Eliminates the need to pull new wires through walls

Broad Compatibility: Services a wide range of York-family equipment

This specific model is designed for standalone operation

McDonnell & Miller 150S-M Pump Controller Refrigerant The Robertshaw 1950-002 Thermopile isThe McDonnell & Miller 150S M is a commercial grade float type combination low water cut off and pump controller designed for steam boilers in high pressure industrial applications. Engineered for systems with a maximum pressure of 150 psi, this unit features a manual reset mechanism, ensuring that the burner circuit remains locked out following a low water event until a technician can verify the system's safety. The internal Monel bellows provides