36
5. MAINTENANCE
Attention: before handling and/or opening the access panels it is compulsory to shut down the power supply
using the general switch located on the front panel. If options KWin and\or KWout are installed, then shut down the
corresponding general switches.
Regular maintenance of the HRg unit is essential to guarantee a good operation of the device and a long life
expectancy. The maintenance frequency will depend on the application and on the actual environment conditions
but in a general way the following controls are advised:
5.1. Once the unit operates in normal condition
Replace the starting filters kit by a kit for replacement filters. See Section 1.4 of this booklet.
5.2 Every 3 months
1. Check for any alarm indicated on the control device. In case of alarm refer to control manual.
2. Check the state of filter clogging. The control device allows to set a pre-defined ‘filter clogging’ threshold (refer
to installation manual). If need be replace filters. Filters that are too clogged can generate the following
problems :
•
Insufficient ventilation
•
Excessive increase of fan rotation speed, creating excessive sound level
•
Excessive power consumption (power consumption will increase exponentially to an increase in pressure
drop, for a constant airflow)
•
A damaged filter allows unfiltered air to enter heat exchanger (risk of clogging) and into ventilated room.
List of replacement filters :
Unit type
Filters dimensions
[mm]
Filter on
supply air
Filter on
exhaust air
Filters kit (exhaust)
CID
HRg 800
HRg 800 ECO
470x287x50
1 x F7
1 x M5
510089
1 x F7
510072
HRg 1200
HRg 1200 ECO
830x287x50
1 x F7
1 x M5
510090
1 x F7
510073
HRg 2000
HRg 2000 ECO
503x370x50
2 x F7
2 x M5
510091
2 x F7
510054
HRg 3000
HRg 3000 ECO
1 x 503x370x50
2 x 436x370x50
3 x F7
3 x M5
510092
3 x F7
510074
HRg 4000
HRg 4000 ECO
436x370x50
4 x F7
4 x M5
510093
4 x F7
510056
HRg 5000
HRg 5000 ECO
503x370x50
5 x F7
5 x M5
510094
5 x F7
510058
HRg 6000
HRg 6000 ECO
503x370x50
5 x F7
5 x M5
510094
5 x F7
510058
3. Inspection and cleaning of the inside of the unit:
- Vacuum clean any accumulation of dust in the unit.
- Inspect and gently vacuum clean if need be the heat exchanger. Use brush accessory to protect fins.
- Clean the possible condensation marks and possible accumulations in the drain pan.
5.3 Every 12 months
1. Check for any alarm indicated on the control device. In case of alarm refer to installation manual.
2. Check the state of filter clogging. The control device allows to set a pre-defined ‘filter clogging’ threshold (refer
to installation manual). If need be replace filters. Filters that are too clogged can generate the following
problems :
•
Insufficient ventilation
•
Excessive increase of fan rotation speed, creating excessive sound level
