Honeywell 50021579-001 1097 Ohm Standard Temperature Sensor Temperature Controller

The Honeywell 50021579-001 1097 Ohm Standard Temperature Sensor Temperature Controller is a Honeywell temperature controller for HVAC repair and replacement work. Use it when the part number 50021579-001 and the listed specifications match the equipment being serviced.

This is a standard temperature sensor for use with the T775 Series 2000 electronic standalone controller in commercial heating and cooling applications. Features: Fast response time and highly accurate 1/2 in. (6.35 mm) stainless steel probe with a thermally conductive epoxy 1,097 Ohms PTC at 77F (25C) Standard temperature sensor for indoor applications Two year warranty Some typical applications include: Monitoring return air temperatures Monitoring discharge air temperatures Monitoring mixed air temperatures

Key Specs

• Application: Accessory
• Sensor Type: 1097 ohm @ 77 F PTC
• Product Type: Temperature Controller

Fitment Notes

Captured equipment fit data references models including T775A1001, T775A2009, T775B2032, T775B2040, T775L2007, T775M2006, T775M2030, T775M2048, T775P2003, T775R2001, T775R2019, T775R2027. Verify the complete unit model and service manual before installation.

Expert Verdict

Reviewed by the SuperArbor Pro Desk: choose this part when the existing component label and unit documentation match 50021579-001 and the spec set above. It is best suited for targeted HVAC service repairs where exact fitment matters more than broad universal compatibility.

FAQs

What is the Honeywell 50021579-001 used for?

It is a temperature controller for compatible Honeywell HVAC equipment. Match the part number 50021579-001 and the equipment service literature before ordering or installing.

Which specs should I verify before purchase?

Verify the spec set shown for this part: Application: Accessory; Sensor Type: 1097 ohm @ 77 F PTC; Product Type: Temperature Controller. The replacement should match the existing component and the unit documentation.

How do I confirm this is the right replacement?

Compare the part number 50021579-001, the temperature controller description, and any unit model references with the original component and the service manual.

Which equipment models are referenced in the fit data?

Captured fit data references models such as T775A1001, T775A2009, T775B2032, T775B2040, T775L2007, T775M2006. Treat this as a fitment aid and verify the complete model list in the equipment documentation.

Who should install this HVAC component?

A qualified HVAC technician should install and test the temperature controller. Disconnect power first, follow lockout procedures, and confirm safe operation after replacement.

Safety and Installation Notes

Disconnect power before service. HVAC electrical and combustion-related components should be installed and tested by a qualified technician. After installation, confirm wiring, mounting, airflow or fluid routing as applicable, and normal system operation.