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CALIBRATE IQ BLOWER
SYSTEM
TM
After the hood is installed and wired,
engage the calibration process (our
Guaranteed Performance System
Technology to ensure full-rated air ow is
being delivered). Prior to calibration, ensure
that all lters, light bulbs and duct system
are installed.
CALIBRATION PROCESS Fig. 27
Hold the calibration button for 3 seconds;
calibration button will light up and stay on
for up to 13 minutes. The blower will start
and begin the calibration process. When
calibration is complete, one of two things
will occur:
FIG. 27
CALIBRATION
LIGHT
CALIBRATION
BUTTON
1.The blower turns o and calibration button light stays on = Successful calibration. Press
the button to turn o the LED. Note: The LED will also turn o if you select any blower
speed on the control.
2.The blower turns o and calibration button light blinks continuously = Too much
restriction in the ductwork is preventing the IQ Blower System™ from achieving the rated
air ow. The blower is automatically set to maximum intensity. NOTE: Common items that
cause restrictions: restricted damper ap(backdraft damper, wall cap, roof cap), too many
elbows, duct size less than 80% of hood outlet, poor transition, use of ex ducting and/or
crushed ducting.
Three options are available if your hood system has too much restriction:
1. Accept air ow as is.
a. Press the calibration button to accept air ow as is. The IQ Blower System™ is now
con gured to the highest possible performance. The blinking calibration light goes out.
Note: The LED will also turn o if you select any blower speed on the control.
2. Correct duct restriction, clear the original calibration data, and repeat the calibration
process.
a. Correct the duct restriction.
b. Clear the original calibration data by holding calibration button for 10 seconds. The light
will blink 3 times to con rm and the blower con guration will go back to default settings.
c. Repeat calibration process from the beginning.
3. Clear calibration data to reset hood to default factory setting and achieve standard high
pressure blower performance.
a. Clear calibration data and reset hood to factory default setting by holding calibration
button for 10 seconds. The light will blink 3 times to con rm and the blower con guration
will go back to default settings.
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