The Robertshaw RS9220 is a trade-grade multi-stage programmable thermostat designed specifically for 2 heat / 2 cool systems

This dual automatic valve incorporates a solenoid-operated first operator and a diaphragm-assisted second operator for redundant safety shutoff

and 6R series

Can I use this 2-pole sequencer to replace a single-pole unit

Carrier HD52DL857 Motor Freon The Robertshaw RS9220 is aThe Carrier HD52DL857 Motor is a high performance 1 HP blower motor designed for heavy duty HVACR applications requiring a 3450 RPM synchronous speed. This three phase motor operates on a dual voltage 230 460V configuration, providing the torque necessary for industrial grade air handlers and large scale ventilation systems. Built with a robust L56 frame, it features a 5 8 inch diameter shaft that extends 2 inches, ensuring a secure fit for standard