do not plug unused ports as it will interfere with the internal diaphragm logic and signal selection accuracy

Always verify the fuel type on the equipment rating plate before installation

the actuator will move to the position dictated by the signal minimum (typically closed) unless the power source itself is interrupted

such as diverting supply lines between two different branch outputs or feeding/exhausting HVAC branch lines based on pressure thresholds

Direct OEM Compatibility: Replaces common Goodman B1859005 and Fasco 7021-9250 models without field modifications

Resideo TB7100A1000 Thermostat 319848-301 do not plug unused portsThe Resideo TB7100A1000 MultiPro 7000 Thermostat is a high performance commercial and residential control designed for versatile equipment management, including 2 or 4 pipe fan coil systems, PTAC units, and conventional heat pumps. Built with a backlit digital display, this multispeed thermostat supports 1 Heat 1 Cool conventional and up to 2 Heat 1 Cool heat pump configurations. Integrating the VersaSpeed fan ramping algorithm, the TB7100A1000