It is not recommended for ammonia (R717) or flammable refrigerants

a weak or orange pilot flame

It handles a wide performance range

Contractors trust its rugged aluminum body and wide ambient temperature range—from -40°F to 175°F (CSA)—for long-term service in rigorous industrial and residential environments

For field reliability

Lochinvar & A.O. Smith 100327308 Coupler Refrigerant It is not recommended forThe Lochinvar & A. O. Smith 100327308 Coupler is a precision engineered 3J 1 2 X 5 8 mechanical linkage designed for high demand HVAC pump repair and fluid management systems. As a direct replacement for ARM1008, this component ensures a secure interface between the motor and pump shafts, facilitating efficient torque transmission while maintaining critical shaft alignment. Built to withstand the rigorous duty cycles of commercial industrial pump