Common Questions: Is this module compatible with non-3

Connect the core line voltage to the black and white leads

the 621721 is the official direct replacement motor for the 621721R and 6217210 models

This 120V SPDT timer features a robust 21 Amp resistive rating

When troubleshooting an air conditioner not cooling

MAMAC Systems HU-226-2-MA-7 Transducer 320720-756 Common Questions: Is this moduleThe MAMAC Systems HU 226 2 MA 7 is a contractor grade duct humidity and temperature transducer engineered for high performance HVAC and building automation systems. Built with a bulk polymer capacitive sensing element, this unit delivers a consistent 2% relative humidity accuracy across a 0 100% RH range. It integrates a 10,000 Ohm NTC thermistor (Type III) for precision temperature monitoring, providing a dual point sensing solution in a single duct