Resideo ZD20X16TZ Damper 321702-401 ensuring fast and stable flame

ensuring fast and stable flame establishment

or the module failing to generate a spark entirely despite having 24V power at the input terminals

or P8 depending on the specific Mitsubishi Electric model

verified kit

Resideo ZD20X16TZ Damper 321702-401 ensuring fast and stable flameThe Resideo ZD20X16TZ is a professional grade rectangular zone damper engineered for tight airflow control in multizone forced air systems. This 20x16 parallel blade damper utilizes a 24VAC synchronous motor mounted on the 16 inch side, featuring a power closed spring return open configuration. Designed for fail safe operation, it automatically reverts to the open position during power loss to ensure continuous ventilation. The assembly is constructed