Venstar VST3800 Thermostat R-410A Direct Compatibility: Seamlessly replaces Cecilware

Direct Compatibility: Seamlessly replaces Cecilware CD241 and CD241L part numbers

allowing for significant adjustment of the drive ratio

Robust Connection Ports: Features both binder head screws and quick-connect terminals for flexible

it must be configured with the appropriate spring kit or conversion regulator as specified by the furnace manufacturer’s installation instructions

Application Versatility: Engineered specifically for Goodman and Amana furnace repair

Venstar VST3800 Thermostat R-410A Direct Compatibility: Seamlessly replaces CecilwareFor service technicians requiring a reliable multi stage control solution, the Venstar VST3800 Thermostat serves as the definitive genuine OEM replacement for obsolete units including the VST1800, P374 1100, P374 1800, and T1800. This 4 Heat 2 Cool (4H 2C) thermostat is engineered to interface seamlessly with Carrier Venstar HVAC systems, supporting complex configurations such as multi stage heat pumps, gas electric dual fuel setups, and hydronic