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CALIBRATE IQ BLOWER
SYSTEM
(WC34
TM
INTERNAL BLOWER DUCTED UNITS ONLY
After the hood is installed and wired, en-
gage the calibration process (our Guaran-
teed Performance System Technology to
ensure full-rated airflow is being delivered).
Prior to calibration, ensure that all filters,
light bulbs and duct system are installed.
CALIBRATION PROCESS Fig. 24.
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:
A. The blower turns off and calibration but-
ton light turns off = Successful calibra-
tion.
B. The blower turns off and calibration but-
ton light blinks continuously = Too much
restriction in the ductwork is preventing
the IQ Blower System™ from achieving
the rated airflow. The blower is automati-
cally set to maximum intensity.
NOTE: Common items that cause restric-
tions: restricted damper flap (backdraft
damper, wall cap, roof cap), too many
elbows, duct size less than 80% of hood
outlet, poor transition, use of flex ducting
and/or crushed ducting.
Two options are available:
1. Press the calibration button to accept
airflow as is. The IQ Blower System™
is now configured to its highest possible
setting. The blinking calibration light
goes out.
2. Correct duct restriction and repeat the
calibration process.
a. To clear the original calibration data,
hold calibration button for 10 seconds.
The light will blink 3 times to confirm
and the blower configuration will go
back to default settings.
b. Repeat calibration process.
I
Q)
- 17 -
CALIBRATION
LIGHT
CALIBRATION
BUTTON
FIG.24
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