Description
The Reznor RZ177397 3/4 inch 2-Stage Natural Gas Valve controls fuel flow within HVAC systems, regulating combustion output to maintain stable heating performance and safe burner operation. It includes a 3/4-inch gas connection, 2-stage modulation of the firing rates, and a 24V electrical input to control actuation by the control circuit. The staged operation enables fine-tuning between low and high fire conditions, optimization of fuel consumption, stabilization of manifold pressure, and aids in the maintenance of constant ignition control in response to changing heating requirements.
