Aprilaire #4838 Air Cleaner Control

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Aprilaire #4838 Air Cleaner Control & LED Base

This "Active Air Cleaner Control" can be used to upgrade your existing whole house air cleaner.  Your air cleaner is only working when your HVAC fan is running.  So - this control makes it possible to run the HVAC fan even when there is no call for heating or cooling.

This control fits air cleaner models 2120, 2140, 2200, 2400 & 5000 - it can be mounted either in your mechanical room (on top of the air cleaner) or on the wall next to the thermostat.  Requires 24VAC for power.

Historically, whole-home air cleaners have waited passively for a heating or cooling call to clean the air. Other than turning the blower on and off, there wasn't a way for homeowners to actively control the blower.  Here's how the #4838 Air Cleaner Control works:

The Air Cleaner Control wires between your thermostat and HVAC equipment.   The Air Cleaner Control provides status information at all times:

Filtering - When the air cleaner is cleaning the air, either at your command or when the heating and cooling system is operating, bars on the display will sequence on and off to let you know that it is working
Filter Life Indicator - This area of the display indicates filter usage. Bars will build indicating usage increments of 20%, based on how the Air Cleaner Control was set up. When all bars are filled and begin to flash, it is time to change the filter.
Active Cleaning - Four selections are available to choose the Air Cleaner Control option that is best for you, beyond the cleaning that occurs whenever your equipment is heating or cooling.

Aprilaire gives you unprecedented control with one touch.
. Constant Cleaning - Runs 24 hours a day, for homes with pets or individualswho suffer fromallergies or asthma
. Automatic - An every-day setting that cleans for 30 minutes every hour
. Event Clean - A great setting when you clean and vacuum - or for parties when visitors bring animals, smoke or other irritants in the home-a three-hour burst of cleaning
. Allergies - For those days when pollen counts are high, this setting runs for 24 hours straight, then turns off