If the internal valve components are worn

ensuring a direct footprint match for existing service calls

An oversized orifice leads to low superheat

the Robertshaw 720-403 is designed for millivolt heating systems as well as standard 24V AC circuits

designed to seat securely on standard 5/8" motor shafts commonly found in large-tonnage condenser units

MAMAC Systems TE-211Z-A-1-E-4 Temperature Sensor 319847-401 If the internal valve componentsThe MAMAC Systems TE 211Z A 1 E 4 is a professional grade space temperature transmitter engineered for high accuracy environmental monitoring in critical HVAC R applications. Built for seamless integration with Building Automation Systems (BAS) and PLC controllers, this unit converts thermal readings into a stable 4 20mA output signal. The TE 211Z A 1 E 4 features a calibrated 0 100F temperature range and operates on a standard 24VDC supply voltage,