ZoneFirst MST Damper Actuator Refrigerant often displaying a flash code

often displaying a flash code for "pressure switch stuck open

3-tube in-shot replacement designed to restore thermal efficiency in Lennox gas furnaces

Efficient Power Draw: 6

eliminating the risks of aftermarket alternatives

this 3-pole definite purpose contactor is the industrial standard

ZoneFirst MST Damper Actuator Refrigerant often displaying a flash codeThe ZoneFirst MST Damper Actuator is a professional grade 24V damper motor engineered for reliable operation in forced air residential and light commercial HVAC zoning systems. This two position actuator operates on 24Vac with a high efficiency 6 watt power draw, ensuring minimal load on the HVAC zone control panel. Designed for a precise 30 second timing cycle for both opening and closing, the MST provides consistent airflow management and prevents