the 56M13 and 56M1301 are technically identical parts and are interchangeable in all specified applications

and Comfortmaker residential split systems

which corrects piping errors electronically without the need for manual replumbing

What are the signs of a failing door switch

Overpressure Protection: Integrated OPD design ensures safety for downstream appliances in 2-PSI piping systems

Tekmar Controls 256 Control 340155-7026 the 56M13 and 56M1301 areThe Tekmar Controls 256 is a sophisticated 24Vac single stage boiler control engineered to optimize hydronic system efficiency through precise outdoor reset technology. Designed for veteran contractors, this microprocessor based control adjusts the boiler supply temperature based on fluctuating outdoor conditions, effectively preventing short cycling and reducing energy consumption. The unit features a characterized heating curve that allows for fine