Installation Guide

21
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 (FAQ’s)
All Models Can the FILTERSCAN WiFi Home 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 Home Air Filter Monitor on a
multi-speed blower HVAC system?
Yes.
Can I install the FILTERSCAN WiFi Home Air Filter Monitor on a
Variable Air Volume (VAV) HVAC system?
As of the writing of this manual, the FILTERSCAN WiFi Home 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 Home 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. In these cases, an optional Tubing Kit is
recommended.
What if my FILTERSCAN WiFi Home 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
Home Air Filter Monitor front panel and immediately release.
Wait for one minute then recheck the AFS Status Display for a
current update time and date.
2. Next, check the FILTERSCAN WiFi Home Air Filter Monitor
power. Insure batteries or power to the Monitor is good (Status
LED blinks green approximately once per minute).
3. Turn power off to the FILTERSCAN WiFi Home Air Filter
Monitor power for one minute. Then turn power back on.
4. Turn power off to your wireless router for one minute. Then turn
power back on.
If none of the above result in updated status data, please review
Table 1 WiFi Status indications above for various WiFi Status LED
conditions.
Where should I set the Service Filter knob?