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VR 250 ECH/B
Operation and maintenance instructions
206610 (16-11-2010)
7
Systemair
AB
GB
Maintenance
Fig. 3
Fig. 4
Maintenance of the VR 250 ECH/B should normally be performed 3 - 6 times a year. Apart from general
cleaning the following should be observed:
Changing extract/inlet filter
Changing extract/inlet filter (lamp signal on control panel) 1 - 2 times per year or as necessary
(Fig. 3)
The bag filters cannot be cleaned and must be changed as necessary. (Contact your supplier for new
filter).
Operation time between filter changes must be re-set after filter change. Press button 13
(fig. 2)
for
approx. 5 seconds. Yellow lamp (14) and one of the green lamps (6, 7 or 8, depending on chosen
operation time) will flash for a few seconds.
Each time a filter change is performed it is recommended to check the driving belt for the heat
exchanger rotor. Check that the belt is undamaged and tight. Test that the drive belt wheel moves
when the rotor is moved by hand. If the belt needs to be replaced contact your installer.
Fig. 5
Fig. 6
Changing operation time between filter changes
Depending on the condition of the filter, you might need to change the operation time for the filter. See
Installation instructions - "Commissioning".
