Plaza notes
Hard ruleDescription
restricted airflow
providing reliable data for critical environmental adjustments
This kit is proprietary to the Series FHB models
OEM Compatibility: Authentic Amana-Goodman replacement part ensures exact fitment and restores original equipment performance
25 inch female quick connect terminals on both ends
MARS 39004 Switch restricted airflowThe MARS 39004 is a professional grade 390 Series SPDT Changeover Switch designed for automatic seasonal transition in hydronic heating and cooling systems. Specifically engineered for fan coil units, this summer winter changeover switch manages thermostat logic based on water temperature, ensuring seamless climate control without manual intervention. It features a high reliability SL 8 thermostat enclosed in a sealed case for environment protection
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy