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E. Commissioning
The speed and boost settings are fully adjustable via the potentiometers located on the front of the unit.
However, for ease of adjustment during commissioning there are 4 pre-marked settings to assist in speed selection.
As marked on the unit, the left hand potentiometer controls the 'Normal' speed, the right hand potentiometer
controls the 'Boost' speed.
USE THE BLUE POTENTIOMETER DRIVER SUPPLIED WITH THE UNIT. Turning the potentiometer clockwise
will increase the speed.
If a purge switch is installed this activates the unit at maximum speed.
Once the MVDC-MS is commissioned, apply white label over marked area containing 'Boost' and 'Normal' holes to
ensure the potentiometers are inaccessible and that the unit returns to an IP22 rated status.
Speed Selection –
400
350
300
250
200
150
3
100
2
50
1
0
0
50
100
F. SERVICING AND MAINTENANCE.
This product contains a self-cleaning backward curved impeller that requires no servicing.
The fan has sealed for life bearings, which do not require lubrication.
Applicable only to products installed and used in the United Kingdom. For details of guarantee outside the United Kingdom contact your local
Vent-Axia guarantees its products for two years from date of purchase against faulty material or workmanship. In the event of any part being found
to be defective, the product will be repaired, or at the Company's option replaced, without charge, provided that the product:-
•
Has been installed and used in accordance with the instructions given with each unit.
•
Has not been connected to an unsuitable electricity supply. (The correct electricity supply voltage is shown on the product rating label
attached to the unit).
•
Has not been subjected to misuse, neglect or damage.
•
Has not been modified or repaired by any person not authorised by the company.
Please return the complete product, carriage paid to your original supplier or nearest Vent-Axia Centre, by post or personal visit. Please ensure
that it is adequately packed and accompanied by a letter clearly marked "Guarantee Claim" stating the nature of the fault and providing evidence of
The guarantee is offered to you as an extra benefit, and does not effect your legal rights
4
150
200
250
3
Volume (m
/h)
The
IF CLAIMING UNDER TERMS OF GUARANTEE
date and source of purchase.
300
350
400
Guarantee
supplier.
Setting
4
0
1
2
3
4
0
1
2
3
4
0
1
2
3
4
0
1
450
500
2
3
Speed
15%
30%
45%
100%
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