Aprilaire Model 6504 Zoned Temperature Control

The Aprilaire Model 6504 Zoned Temperature Control provides ultimate comfort, control and convenience. This whole-home system delivers perfect temperature control 365 days a year and serves as a command center for other Aprilaire Indoor Air Quality products.

The Model 6504:
  • Eliminates inconsistent, uncomfortable temperatures in your home by using an Aprilaire Model 8570 Thermostat in up to four separate areas or “zones.”
  • Shares information between thermostats and opens and closes dampers located in your system's ductwork to control heating and cooling needs in each zone.
  • Delivers conditioned air only where you need it, when you need it, allowing you to customize your comfort while saving you money on energy costs.
The Aprilaire Model 6504 Zoned Temperature Control is the ultimate system for achieving the perfect temperature throughout your home. The Model 6504 is the central wiring hub and information interchange for your zoned temperature control system, which also consists of an Aprilaire Model 8570 Thermostat in each zone.
Information is shared between thermostats, the Model 6504 and other Aprilaire accessories to optimize performance and convenience. The Model 6504 is located near your heating and cooling system and is installed by a local HVAC professional.

Total Comfort Control

The Model 6504 can go well beyond perfect temperatures to control other aspects of indoor air quality, providing the ultimate in home comfort and convenience.
  • Improve humidity control—your Aprilaire Whole-Home Humidifier shares your home's relative humidity level with the system, which allows the Model 6504 to extend blower operation at the end of a heat call if the humidity set point was not reached during the call.
  • Ventilation and air purity control—when installed with an Aprilaire Energy Recovery Ventilator or an Aprilaire Ventilation Damper and an Aprilaire Whole-Home Air Purifier the Model 6504 control will deliver the right quantity and quality of fresh air.
  • Maintenance reminders—the Model 6504 will alert you when scheduled service is needed for your heating and cooling equipment as well as your Aprilaire indoor air quality products.

Other Features and Benefits

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  • Plenum temperature control: Provides high and low temperature protection for the heating and cooling equipment.
  • Any zone sets mode: Provides true independent temperature control by zone.
  • Zoned fan: Independent control of fan operation provides increased ventilation flexibility.
  • Ability to control any thermostat from any other thermostat: Whether turning on/off, adjusting or simply viewing, you can control any Model 8570 Thermostat from any other Model 8570.
  • Unsurpassed convenience: Create customized names for each Model 8570 thermostat to provide easy identification from one another.
  • Useful information display: Indoor and outdoor temperature, indoor relative humidity, equipment status, time and date are shared by the 6504 with each thermostat. It can also display the name and phone number of your heating and air-conditioning dealer if service is ever needed.
  • Constant comfort: Your morning temperature setting is assured after an overnight setback through the use of special Progressive Recovery technology.
The Model 8570 Thermostat complements the Aprilaire Model 6504 Zoned Temperature Control perfectly. Visit the Model 8570 page to learn more about its features.