Honeywell T678A1437 Controller 30067439-890 Optimized Airflow: The 1100 RPM

Optimized Airflow: The 1100 RPM rating is calibrated for maximum heat dissipation without exceeding decibel limits

the 0121491 is the lead-free updated version of the legacy 0275114 and 174A-1-60 models

Designed with NBR (Buna-N) seals

Delivering 140 lb-in torque

Honeywell T678A1437 Controller 30067439-890 Optimized Airflow: The 1100 RPMThe Honeywell T678A1437 is a heavy duty remote bulb controller designed for precise two stage temperature control in commercial HVACR applications. As a veteran grade mechanical thermostat, it excels in regulating temperatures within ducts, pipes, tanks, and boilers. This model features dual SPDT switch outputs that operate in sequence, making it the standard choice for staging dampers, valves, or multi stage heating and cooling equipment. With a 0