25
The electronic module controls peripheral devices. Setting of the module is done with the operating
knob. Data from the main PCB is shown on the display. See section 4.1.1. The VOC motherboard Is
screwed on the back of the motherboard. It Is connected with a ribbon cable
The following elements are connected to the main PCB:
•
limit switch (kill switch) preliminary filter cover, indicating the cover is closed;
•
limit switch (kill switch) main cover, indicating the cover is closed;
•
DUST sensor showing dust level;
•
VOC sensor showing VOC level;
•
UV lamp relays, which control UV lamp operation;
•
Fan
–
fan speed control.
5.4.1
Replace electronic module
To get access to the electronic module:
•
open the top cover;
•
remove the HEPA H14 main filter (see section 7.2
Replace the main HEPA filter
of the i-air Pro®
user manual);
•
remove the electronic module cover screws;
•
remove the electronic module cover.
ATTENTION
After the DUST sensor is replaced it should be calibrated against the reference dust
sensor. Calibration is done via service menu, submenu PARAMETERS/DUST_OFFSET.
The dust sensor is mounted on the left side of the motherboard (see image 16 / nr 1)
5.5
Filter replacement
5.5.1
Replace the carbon pre-filter
For removal of the carbon pre-filter see section 7.1
Replace the pre-filter
of the i-air Pro user manual.
5.5.2
Replace the HEPA H14 main filter
For removal of the HEPA H14 main filter see section 7.2
Replace the main HEPA filter
of the i-air Pro
user manual.
5.6
Preventive maintenance schedule
Preventive maintenance task
Frequency
Authorized
person
Inspection
method
Check and replace carbon pre-filter when required
1/year
Service or
repair engineer
Visual
Check and replace HEPA H14 main filter when required
Visual
Check gasket conditions every month!
Visual
Check limit switches (kill switches) for proper operation
Physical
Check cleanliness of UV lamps
Visual
Check that the UV lamps are ON
Visual
Indicator in the menu of the working hours
Visual
Check supply voltage
Measure
(multimeter)
Check fan current consumption
Measure
(multimeter)
Check PCB
–
fan connectors
Physical
Содержание i-air PRO
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