ENGLISH
41
NT_51897201_RHE-AN_130516.docx
Servicing / replacement of the fresh air / extracted air filters
9.3
As standard, the RHE units have filters on the extracted air to protect the heat exchanger (Filter G4) and
on the fresh air (Prefilter G4 + Filter F7 or F9).
The filters F7 are held flush on the sealing joints by 2 compression latched slides.
The clogging of the filters is checked by differential pressure sensors with a return of information on the
controller.
Size Quantity
G4 filter. Dimensions
(mm)
Media Surface
(m
2
)
Filter F7 or F9
Dimensions (mm)
Media surface
(m
2
)
1300 1
600x372x48
0,76
600x
372x
48
7,3
1900 1
700x422x48
1
700x
422x
48
9,7
2500
2
425x472x48
2x 0,67
425x 472x 48
2x 3,3
3500
2
505x562x48
2x 0,97
505x 562x 48
2x 4,7
Intervention :
Switch off the electrical power supply with the main circuit breaker.
Open the access doors.
Pull on the filters G4 (extraction and fresh air prefiltration).
Pull on the mobile slides to unlock the filter F7 ; take him out.
Remove the dust from the compartment next to the filter slides.
Place the new filters and lock the mobile slides.
Close the doors.
Restart the unit; the filter alarm is automatically reset and disappears.
Note
: At the first commissioning, clean or replace the filters. (see how to replace them).
Servicing / replacement of the rotating heat exchanger and belt
9.4
Periodically cleaning of the fan from dust recommendation once a year.
To facilitate maintenance, the motor/heat exchanger assembly can be extracted from the unit :
Switch off the electrical power supply with the main circuit breaker.
Open the access door.
Disconnect the quick release connector of the motor connection.
Pull on the heat exchanger to extract the unit.
Handling with care using correct lifting equipment.
Clean with compressed air or milt detergent.
Do not use ammonia-based detergents.
Make sure that the heat exchanger rotates correctly by turning the
wheel by hand after having removed the belt from the motor’s pulley groove.
Check the condition of the belt – an additional belt is mounted on the wheel.
Make sure that the tightness brushes are not damaged or shifted.
The rotor’s bearings do not need, in principle, to be greased.
Reinstall the assembly and reposition the connector.
To replace the belt : contact us.
