making it a versatile truck-stock item

Universal Controller Fit: Designed for high-performance compatibility with both oil-fired (3250) and gas-fired (3200) HydroStat systems

While some specs may crossover

if a vent limiting device is added

KMC Controls REE-1004 Relay making it a versatile truck-stockOptimize your VAV terminal unit performance with the KMC Controls REE 1004 Relay Module, a specialized solution for constant volume control. This module is engineered to provide precise airflow regulation without the necessity of a room thermostat, allowing for a thermostat free flow control setup that simplifies field installations. The REE 1004 relay is a critical component for contractors managing KMC CEE 4000, CEP 4000, CSE 4000, and CSP 4000