McDonnell & Miller 61-HD Low Water Cut Off R-410A the 998-0510-98 kit typically includes

the 998-0510-98 kit typically includes the necessary seal (part no

and 9 for hazardous or washdown locations

this HVAC safety switch is calibrated to provide high-limit protection by breaking the electrical circuit to the gas valve or ignition control if internal temperatures exceed factory safety thresholds

This actuator is specifically designed for use with ESBE VRG and VRB series rotary valves

making it suitable for outdoor and wash-down environments

McDonnell & Miller 61-HD Low Water Cut Off R-410A the 998-0510-98 kit typically includesThe McDonnell & Miller 61 HD (Part Number 140300) is a heavy duty mechanical low water cut off designed specifically for low pressure steam boiler applications. This head mechanism serves as a direct replacement component for Series 61 controllers, facilitating reliable burner circuit interruption when water levels drop below the safe line. Rated for a maximum steam pressure of 20 PSI, the 61 HD utilizes a high buoyancy float operated mechanism to