as the control board fails to receive the microamp signal required to keep the gas valve energized

allowing for rapid mechanical room repairs and reduced system downtime

while the outlet (Port AB) delivers the mixed fluid

this starting relay provides the industrial-strength switching needed to prevent premature motor failure and maintain system uptime in demanding HVACR environments

though knowledge of York-specific error codes and board jumpers is recommended for proper calibration

iO HVAC Controls BAL-10 Damper with Actuator R-407A as the control board failsThe iO HVAC Controls BAL 10 is a heavy duty, 10 inch round electronic remote balancing damper engineered for precision airflow management in commercial and residential ductwork. Built with a 20 gauge galvanized steel shell, this motorized balancing damper is the professional standard for high performance air balancing in hard to access locations, such as finished ceilings or restricted mechanical runs. Unlike manual dampers that require physical