Aprilaire 8126X

Aprilaire® 8126X Ventilation Control System, Includes: 6506 6 inch Damper, 8120X Controller and 24 VAC 10VA Transformer.


Manufacturer part number:



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 accuracy

Standard/Approvals: ASHRAE 62.2-2010

Application: Air Quality

Products specifications
Attribute nameAttribute value
Amperage Rating1 A Controller, 0.41 A Damper
Electrical Connection2-Wire
ManufacturerResearch Products Corporation
Size6 Inch
Temperature Rating0 - 100 deg F
Timing1 hr
Voltage Rating18-30 VAC Controller, 24 VAC Damper