as well as the OPD210D overpressure protection device

ensuring a precise fit in the scale control insert

and WeatherKing air handlers and furnaces

Tamper Prevention: Restricts access to internal configuration and setpoint adjustments

Precision Control: Eliminates mechanical play in the damper linkage

Heil Quaker ICP 1003175 Limit Switch as well as the OPD210DThe Heil Quaker ICP 1003175 Limit Switch is a critical safety component designed for high performance temperature regulation in residential and mobile home furnace applications. Engineering specifications define this as an L150 30F limit switch, meaning it is set to open the circuit at a fixed 150F high limit threshold and features a 30F differential for automatic reset. This OEM replacement part is essential for preventing heat exchanger damage by