Installation guide

16
C alibrating the FILTERSCAN W i F i A ir F ilter M onitor
Figure 15: Front cover of the FILTERSCAN WiFi monitor
1. After power is applied, wait for approximately 15 seconds (warm up and stabilization time).
2. Turn the HVAC system OFF at the thermostat. Ensure the HVAC system blower is turned OFF and
that no conditions exist during this part of the calibration that would cause air to be moving within the
HVAC ducts, such as opening and closing of doors or windows.
3. Install a clean, new air filter into the system.
4. Depress the ZERO/CLEAN button ONCE.
5. If the STATUS LED turns Red, depress the ZERO/CLEAN button ONCE again.
a. The STATUS LED will blink yellow for several seconds while the FILTERSCAN WiFi Air Filter
Monitor records the HVAC system’s FAN OFF condition, then turns to blinking green. This
indicates proper operation and that you are ready to move to next step. If the unit detects the zero
air flow is out of limits, the STATUS LED will blink red. In this case, check to see that the system
blower fan is OFF and that no condition described in step 1 exists. If no such condition exists, start
again at step 1. If the error condition persists, call 888-414-FLOW (3569) for instructions.
6. Adjust the thermostat temperature adjustment to either increase or decrease the room temperature by
at least ten degrees, enough to signal the HVAC system to turn on heating or cooling at maximum
blower fan speed.
7. Once the HVAC system blower fan turns on, wait at least one minute, or until the blower fan reaches
maximum speed, for the blower fan to stabilize. This is critical to proper operation in VAV blower
systems.
8. Depress the ZERO/CLEAN button once. The STATUS LED should turn from blinking green to
blinking yellow for about eight (8) minutes. This indicates that the unit is calibrating itself to the air
filter and HVAC system into which it is installed.
9. Once calibration is completed, the STATUS LED will change from blinking yellow to blink green a few
times then turn off.
10. Return the thermostat to normal operating temperature.
This concludes the installation of the FILTERSCAN WiFi Air Filter Monitor .
The SERVICE FILTER control is a fine tuning adjustment that has been calibrated during production to the
mid-range, which is the Recommended Setting. This control allows the user to change the point at which
the clog alarm will be triggered. Turning the SERVICE FILTER adjustment knob clockwise will cause the
FILTERSCAN WiFi Air Filter Monitor to issue an alarm at a lower level of filter clogging (less energy
consumption). Turning the SERVICE FILTER adjustment knob counter-clockwise will cause the
FILTERSCAN WiFi Air Filter Monitor to issue an alarm at a higher level of filter clogging (more
energy consumption). See the FAQ Section for further information.