Amana-Goodman PHWT-A100C Tstat

The Amana-Goodman PHWT-A100C is a professional-grade non-programmable heat pump thermostat designed for 1 Heat / 1 Cool configurations. Engineered as the direct replacement for 2246002 and 1246002, this 24V AC digital interface provides reliable performance for PTAC, PTHP, and standard heat pump systems. It features a high-visibility backlit display and precise temperature control, maintaining a +/- 1-degree differential to prevent short-cycling and ensure equipment longevity. This hardwired HVAC control eliminates the need for batteries by drawing power directly from the C-wire. The PHWT-A100C includes adjustable compressor protection delay and is compatible with most R, C, Y, W, G, O/B terminal designations. Contractors can rely on its straightforward terminal block wiring and rugged housing for fast installations and long-term field stability in both residential and light commercial applications.

• Direct OEM Replacement: Replaces obsolete part numbers 2246002 and 1246002 without requiring wall modifications.
• Heat Pump Compatibility: Specifically calibrated for 1H/1C heat pump systems including Goodman and Amana PTAC units.
• Contractor-Friendly Installation: Features standard terminal nomenclature and a robust mounting plate for secure fitment.
• System Protection: Integrated short-cycle protection logic preserves compressor life during rapid power cycles.

Common Questions:

Is the PHWT-A100C compatible with multi-stage systems?
No, this unit is designed strictly for single-stage heat pump applications (1 Heat / 1 Cool). For 2-stage systems, a different control module is required.

Does this thermostat require batteries?
This is a hardwired thermostat that requires a common wire (C-wire) to function, ensuring consistent power for the backlit display and logic board.

Can I use this to replace a 2246002 model?
Yes, the PHWT-A100C is the direct engineering successor to the 2246002 and 1246002 legacy models, maintaining identical wiring footprints.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.