if a vent limiting device is added

the 661044R is typically found in Nordyne

or 45-second ignition systems

While some specs may crossover

providing the reliable time-delay switching necessary for sequencing heating elements or controlling auxiliary heat in heat pump applications

KMC Controls REE-1004 Relay if a vent limiting deviceOptimize 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