Resideo ZD10X18TZ Damper 320788-702 this 25kW heat kit is

this 25kW heat kit is designed to work with both fixed-speed and variable-speed ECM motors

Unlike sacrificial alternatives

Is the Copeland ZR16K5E-PFV-800 compatible with R-22

Replacing a failed valve with this genuine 100208449 Lochinvar part ensures exact fitment and adheres to ASME and CSA safety standards

use a calibrated manometer to verify the trip points during commissioning to ensure accuracy within the gas pressure range

Resideo ZD10X18TZ Damper 320788-702 this 25kW heat kit isThe Resideo ZD10X18TZ is a professional grade 10" Wide X 18" High Parallel Blade Zone Damper engineered for heavy duty performance in forced air systems. As a 24VAC power closed spring return open unit, it ensures a fail safe open position during power loss, maintaining critical airflow. This rectangular zone damper features a parallel blade action and Kevlar gearing, which significantly reduces mechanical wear compared to standard competitive models.