Specification

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b. IF YOU PRESS RESET BY MISTAKE, press it again for 2
seconds until the Status LED blinks Amber and a beep is heard.
3. Wait at least one minute before turning your HVAC system ON – The
FILTERSCAN WiFi Air Filter Monitor is starting the automatic
calibration process during this time, calibrating itself to the air filter and
HVAC system into which it is installed.
4. To verify communication with the AFS server, you may depress the
SEND button momentarily at this point, then log into your AFS
account, and select Filter Status, where you should see “OK” for
Status or Device Health.
Your FILTERSCAN WiFi Air Filter Monitor is now calibrated to the
type of air filter you have installed. Due to air filter types and
manufacturing tolerances, you will need to calibrate the FILTERSCAN
WiFi Air Filter Monitor each time a new air filter is installed.
Automatic ATTENTION - HVAC systems with two-speed blowers! Typical HVAC
Adjustment systems will have different blower speeds for Heat and A/C. The
FILTERSCAN WiFi Air Filter Monitor automatically adapts to the
changes in HVAC blower speeds.
Software Updates The FILTERSCAN WiFi Air Filter Monitor has the capability of
automatically updating its software through its Internet connection to the
AirFilterSentry cloud server. If you checked the “Allow Automatic Updates
to your FILTERSCAN Software?” box on the Edit Monitor screen and
there is a later version of software available on the server, your
FILTERSCAN WiFi Air Filter Monitor will automatically download the
latest version of software and update itself without any action by you. The
update will be transparent and all operating parameters will be intact after
the update.
Frequently Asked Questions
All Models Can the FILTERSCAN WiFi Air Filter Monitor be mounted on the
supply side of the HVAC blower?
No, only on the return side duct, either upstream or downstream of
the air filter or differentially across the air filter.
Can I install the FILTERSCAN WiFi Air Filter Monitor on a multi-
speed blower HVAC system?
Yes.
Can I install the FILTERSCAN WiFi Air Filter Monitor on a Variable
Air Volume (VAV) HVAC system?
As of the writing of this manual, the FILTERSCAN WiFi Air Filter
Monitor will operate with most VAV systems in production. Note: The
Monitor must be mounted downstream if the VAV system is set to the
constant torque mode.
What effect, if any, does opening or closing air vent registers have on the
FILTERSCAN WiFi Air Filter Monitor performance after it has been
calibrated to a new air filter?
Any significant changes in HVAC system pressure caused by register
changes or other factors will change the point at which the clog alert
will occur. The greater the number of system registers, the less effect