Grozone Control SCO2 Mode D'emploi page 8

CO
This step is not required for a new unit (factory calibrated). Verify CO
sor precision by exposing your unit to outdoor air every 6 months (correct
If you need to calibrate the sensor, please follow these instructions. At any
time before the last step, the calibration procedure may be cancelled,
causing the controller to return to normal operation.
IMPORTANT : Before beginning the calibration , bring the con-
troller outdoor (fresh air being use as a reference) and wait un-
Steps til the reading is stable (2-3min). If the value on the screen is
around 350 to 450 ppm, YOU DO NOT NEED TO RECALIBRATE
YOUR UNIT.
Click knob repeatedly until "Set-Up &
1
Press knob and keep it pressed for about 5 seconds, until "Set
Up & Cal"
2
screen.
Let knob go, "CO
(blinking).
3
8
CO SENSOR CALIBRATION SENSOR CALIBRATION
2 2
IMPORTANT NOTICE:
value stands between 300 and 500 ppm).
light indicator begins to flash and
" and
2
Cal"
"CAL" appears on the screen alternately
indicator turns ON.
"CAL" appears on
sen-
2