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Aprilaire 8126A -Ventilation Control System (Includes Control, Damper And Transformer)

Item: 8126A
MFR: 8126A
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Aprilaire 8126A -Ventilation Control System

Ventilation control kit (Includes Control, Damper And Transformer) Installed as part of your home's heating and cooling system, the Aprilaire Ventilation Controller makes decisions regarding when and how long to ventilate. It does this through continuous monitoring of indoor relative humidity, outdoor temperature, and user-friendly adjustable timer settings.

Indoor relative humidity is monitored to help prevent high humidity conditions inside homes. The Aprilaire Ventilation Controller will not open the damper to outside air if there is a chance of raising the humidity inside the house to high levels. The Aprilaire Ventilation Controller is designed to prevent indoor relative humidity levels from increasing beyond 60% due to ventilation.

If the outdoor air temperature is below 0 degrees F or above 100 degrees 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)
  • 24-Volt control
  • Measures outdoor temperature to stop ventilation at extremely hot or cold outdoor temperatures
  • Measures indoor relative humidity, preventing home indoor RH from exceeding 60%
  • Installation flexibility - ability to override humidity and temperature control

  • Controls that satisfy your customers' needs
  • Allows fan to cycle, increasing air cleaner and humidifier run times
  • Allows coil to drain before running fan to prevent moisture from being added back into the home
  • Easy to install, saving you time & money
  • Increased customer comfort and energy savings over other economical ventilation options
  • Allows you to meet every application


NameAprilaire 8126A -Ventilation Control System (Includes Control, Damper And Transformer)
Gemaire Item Number8126A
Manufacturer Product Number8126A
SKU - PIM Number1468225916259
ERP Number158798
Unit of MeasureEA
Weight6.5 Pounds (Lb)
Length10.3 Inches (In)
Width10.3 Inches (In)
Height10.9 Inches (In)
Country of OriginUSA
Voltage24 VAC
Cycle/Hertz60 Hz
TypeVentilation System
UL ListedNo
UL RecognizedNo
GEM - Case Quantity


Parts List