the DCL164S is compatible with HCFC

Stable Performance: Utilizes a 10K ohm Type II thermistor to deliver precise temperature data back to the controller

this is an OEM part for the Nordyne family of brands

the S1-024-40900-000 wiring diagram may differ slightly from older models

McDonnell & Miller 53-HD Control 30067439-890 the DCL164S is compatible withUpgrade or restore your boiler's mechanical water feeder with the McDonnell & Miller 53 HD Head Mechanism. Designed specifically for low pressure steam and hot water boilers, this heavy duty Series 53 replacement part (Part Number 137000) provides proportional feed action to maintain safe water levels in systems larger than 5,000 sq. ft. As a head mechanism only, this unit allows for a direct swap onto your existing float chamber without needing to