Electric Heat Control Module, Pro, 24VAC, 5W, 10VA

The EHM allows a wide variety of ETC (External Temperature Control) devices to control an SSR (Solid State Relay) switched electric heater assembly. Connecting a DAT (Discharge Air Temperature) sensor enables automatic DAT control. The EHM modulates the electric heater elements in response to a call from the ETC. External temperature controls may be a simple thermostat, or a wide variety of common heater control methods offered by HVAC and building automation equipment manufacturers. These controls may provide a simple call for 100% heat, call the heat in stages, or call the heat by analog signal. Without DAT control, the EHM uses this call to determine the percent of full heater capacity supplied to the air stream