this kit is designed exclusively for DCC series models (A

To correctly seat the probe and flange

This OEM Lochinvar replacement part maintains optimal flow rates through the heat exchanger

set your multimeter to the microamp (µA) scale and connect it in series between the flame sensor and the control module

which allows for internal servicing or diaphragm replacement without pumping down the system or breaking pipe connections

MARS 33420 Tstat 320819-301 this kit is designed exclusivelyThe MARS 33420 is a high performance commercial refrigeration thermostat designed for precision temperature control in demanding environments. This SPST fan delay thermostat features a fixed 35F open and 55F close configuration, making it an essential component for defrost termination and evaporator fan motor control. Built with a 1 inch fully encapsulated disc, this Klixon style switch ensures moisture resistant operation and long term reliability in