14SH22-309105 York Therm-O-Disc, 24V, SPDT (SPNO/SPNC), 3 Switches, 2 Timing, Heat Sequencer Relay (On: 1-110s, Off: 1-110s)

Product Overview

The 14SH22‑309105 is a genuine York Therm-O-Disc heat sequencer designed for electric furnace and air‑handler heating element staging. This 24‑volt SPDT (SPNO/SPNC) sequencer controls the timed activation and shutdown of multiple heat strips, ensuring safe, reliable, and properly sequenced operation in York electric heating systems.

Built with three switches and dual timing circuits, this sequencer provides dependable performance in demanding HVAC applications and is a direct replacement for many York electric furnace models.

Key Features

• Voltage: 24V control

• Switch Type: SPDT (SPNO/SPNC)

• Number of Switches: 3

• Timing:

  • On: 1–110 seconds

  • Off: 1–110 seconds

• Application: Electric furnace heat staging / blower delay

• Reliable Therm-O-Disc construction for long service life

• OEM-grade performance for York systems

Common Symptoms of a Failed Sequencer

• Heat strips not turning on

• Heat strips stuck on continuously

• Blower running with no heat

• Intermittent heating or delayed heat response

Compatibility

This sequencer is commonly used in York electric furnaces and air handlers. Always verify part number match or consult equipment documentation before ordering.

Replaces / Cross-References

• 14SH22‑309105, 15SH-309105, 14SH22309105

• SH22 series sequencers

• York OEM heat sequencers with identical specs

(If you want, I can pull cross‑references from Neuco or AC Parts Distributors and add a full compatibility table.)

Specifications