Product Details
The TA155 auto changeover thermostat is designed for HVAC systems, including two or four-pipe fan coil applications or other installations requiring manual switching between heating and cooling. This thermostat features solid-state accuracy for comfort and efficiency, complemented by contemporary styling. It includes advanced self-configuring circuitry that accommodates input voltages from 24 to 277 VAC at 50 or 60 Hz, with outputs suitable for connection to relays, valves, and similar pilot duty loads. The system and fan switches are capable of handling both inductive and resistive loads. Standard models are available as a heating/cooling thermostat only or with integral switches for heat-off-cool and fan speed selection. The TA155 is user-configurable for either unit or remote thermistor sensing and supports fan operation for either continuous or cycled modes with the use of a load handling relay. Key features include a thermostat switching from heat to cool with a 4°F dead-band, 1 heat/1 cool ratings of 10 VA at 24 VAC and 20 VA at 120-277 VAC, a temperature range of 50 to 90°F / 10 to 32°C, and the capability for up to three-speed fan switching. It operates at 50 or 60 Hz and features auto changeover functionality.
