Aprilaire Ventilation Control System, 6 Inch, 18-30 VAC Controller, 24 VAC Damper, 1 A Controller, 0.41 A Damper, 1 hr, 2-Wire, 0 - 100 deg F, Includes: Transformer, 8120X Ventilation Controller, 6 Inch Diameter Power Open and Normally Closed Damper|If the outdoor air temperature is below 0 deg F or above 100 deg F, the motorized, normally closed damper to the outside wall will not open|Separate ventilation time adjustment|Separate cycle time adjustment|Minimum off times between cooling call and unsolicited blower call (UBC)|Measures outdoor temperature to stop ventilation at extremely hot or cold outdoor temperatures|Installation flexibility - ability to override humidity and temperature control|Ventilation time dial setting (minutes per cycle) - off, 0-60, test/reset|Duct opening dimensions (for humidity sensor) 3/4 Inch dia hole|Outdoor temperature sensor inputs - thermistor (provided)|Overall dimensions 6 Inch width x 4-1/4 Inch height x 1-3/4 Inch depth|0.2 deg F temperature accuracyStandard/Approvals: ASHRAE 62.2-2010Application: Air Quality
