Model DFAC
Fresh Air Ventilation Control for Multi-Family Housing
Meets ASHRAE 62.2 Ventilation Requirements.
Prioritizes fresh air operation during HVAC fan calls for energy efficient operation.
Adjustable High and Low Outdoor Temperature Limits. Inhibits fresh air operation when the outdoor temperature is below or above the limits set.
Adjustable High Outdoor Humidity Limit. Inhibits fresh air operation when the outdoor humidity is above the limit set.
View the outdoor temperature and humidity.
Optional Boost Fan Operation. Includes a relay for controlling an optional boost fan 24VAC relay.
Optional Inline Heater Operation. Includes a relay for controlling an optional inline heater 24VAC relay. An outdoor temperature limit can be set for heater operation.
Power Switch for turning the DFAC On or Off.
Description
The DFAC is a smart fresh air control designed to meet ASHRAE 62.2 ventilation requirements at a cost effective price. Fresh air minutes per hour, temperature limits and relative humidity (RH) limits are easily set using the keys and LCD display on the control.
The DFAC prioritizes delivering the required fresh air during heating, cooling and fan calls. If the required ventilation time is not achieved during these calls, the control will automatically open the fresh air damper and activate the HVAC fan and/or a dedicated boost fan to ensure compliance. An optional inline heater can also be used.
Easy Installation
The fresh air damper easily connects to the DFAC control using the provided plug&play cable.
The combination RH and Temperature sensor is installed in the intake end of the damper so it can sense outdoor RH and temperature without operating the fan. The sensor connects to the DFAC control using the provided plug&play cable.
Easy wiring using screwless, push-in terminals.
A Test Mode is provided for measuring fresh air intake CFM.
