and 277Vac circuits

This high-altitude burner kit is engineered to maintain proper manifold pressure and thermal efficiency in atmospheric vent water heaters

Universal Replacement: Directly replaces part numbers 76776400 and 176776400 without requiring system modifications

Key Benefits for Field Installation 180 in-lb Torque Output: Provides ample power for high-pressure drop applications and large diameter ball valves

including Ultra 155

Resideo ZD18X10TZ Damper 326058-758 and 277Vac circuitsFor specialized zoning requirements, the Resideo ZD18X10TZ Damper offers a heavy duty solution for managing airflow in residential and light commercial forced air zoning systems. This 18" x 10" parallel blade zone damper is engineered with a high torque 24V synchronous motor mounted on the 10 inch side, ensuring reliable two position control. Designed specifically for normally open applications, the unit utilizes power closed spring return logic to