Installation guide

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manufacturing tolerances, you may 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.
F requently 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
on the system’s pressure when one or two registers are changed and
therefore the less effect on when the clog alert will occur. Regular
changes to system registers could make the performance
unpredictable.
What if my FILTERSCAN WiFi Air Filter Monitor stops sending
status data? What if the Status report at my AirFilterSentry Notification
Service account does not display a recent update Date?
There could be many causes for data to not reach the AFS server.
1. First, depress the SEND button on the FILTERSCAN WiFi Air
Filter Monitor front panel. Wait for one minute then recheck the
AFS Status Display for a current update time and date.