this model is specifically tested to meet UL555S standards

For technicians servicing Reznor UDAP

electrical surges

This 24V continuous try ignition module is engineered to manage the pilot and main burner ignition cycles

McDonnell & Miller 157S-RLS-MD Control R-410A this model is specifically testedThe McDonnell & Miller 157S RLS MD (Part Number 177251) is a high performance mechanical combination low water cut off and pump controller designed for commercial and industrial steam boilers. Engineered for high pressure applications up to 150 psi, this unit features a maximum differential operation that effectively prevents nuisance burner shutdowns in systems experiencing rapid water level fluctuations. Its integral water column design simplifies