Zonefirst RTB14 Damper Els PW 17895 After ensuring the O-rings are

After ensuring the O-rings are seated

The Copeland 943-0153-00 Control is a technical-grade 230V Electric Unit Control engineered for precision in commercial refrigeration and industrial HVAC applications

Constructed with durable diaphragms to withstand heat and vibration

providing a seamless retrofit without the need for extensive piping modifications

Always replace with the exact HH18HA138 specified by the manufacturer

Zonefirst RTB14 Damper Els PW 17895 After ensuring the O-rings areThe Zonefirst RTB14 is a heavy duty 14 inch round take off bypass damper engineered for precise static pressure relief in zoned HVAC systems. This barometric bypass damper features a built in take off collar, allowing for direct mounting to the supply plenum, which significantly reduces installation time and eliminates the need for additional transition fittings. Constructed from high grade galvanized steel, the RTB14 utilizes an adjustable weighted