Precision Tuning: Includes a cutout knob adjustment for field-calibrating high and low limits without removing the cover

This unit is a direct replacement for Antunes 8562120010 models requiring reliable freeze protection control and precise digital temperature monitoring in air handling units (AHUs)

this 115Vac draft inducer operates at a precise 3300 RPM to facilitate the safe expulsion of flue gases

and EV220B valves

Key Benefits for Contractors: Overpressure Protection: Integrated internal relief valve enhances system safety by venting excess pressure

Zonefirst AOBD-12X12 Blade Damper Els PW 29614 Precision Tuning: Includes a cutoutThe Zonefirst AOBD 12X12 is a professional grade 12" x 12" automatic opposed blade damper designed to provide precise airflow management in commercial and residential HVAC zoning systems. Constructed from heavy duty extruded anodized aluminum, this damper features a low profile frame that allows for simple "slide in" installation through a standard 3 inch duct slot. Unlike parallel blade dampers, the opposed blade action provides a linear airflow