Zonefirst TTS 7 Day Program Heat/Cool Stat Touch Screen Freon Universal Input: The 10-30V AC/DC

Universal Input: The 10-30V AC/DC operating range supports both AC and DC control circuits without additional hardware

Compact footprint allows for easy installation in new or retrofit HVACR control panels

This F135-40F thermostatic switch is designed to regulate blower fan cycling by monitoring heat exchanger temperatures

What does a flashing flame light on the module indicate

check the back of the switch

Zonefirst TTS 7 Day Program Heat/Cool Stat Touch Screen Freon Universal Input: The 10-30V AC/DCThe Zonefirst TTS is a professional grade 7 day programmable thermostat engineered for precise climate management in residential and light commercial zoning applications. This touchscreen HVAC control features a high contrast backlit interface that simplifies setpoint adjustments and schedule overrides, making it a preferred choice for contractors seeking a Zonefirst digital stat with high reliability. Designed for compatibility with most 24V AC