5
nuaire.co.uk
029 2085 8400
30. 05. 19. Document Number 671924
Installation and Maintenance
MEV-X
- Continuous Extract Unit
7.0 MAINTENANCE
It is inevitable that even with filtered extract grilles fitted, some dust,
fluff etc. will pass through the filter, and which, if allowed, will build up
internally on motors and impellers, shortening the life of the unit and
in severe cases lead to overheating of the motors. Consequently, it is
strongly recommended that all units are inspected and cleaned every
year.
8.0 REPLACEMENT OF PARTS
Should any component need replacing, Nuaire keep extensive stocks
for quick delivery. Ensure that the unit is electrically isolated, before
carrying out any work.
Note: The supply cable must be replaced by an electrically
competent person.
When ordering spare parts, please quote the serial number of the unit
and the ARC number of the purchase, if possible. (This information will
be available on the fan label).
Telephone 02920 858 400
6.0 COMMISSIONING
The unit offers up to three independently variable speeds depending
on the required installation and wiring configuration (Section 5.0).
To adjust the speed, remove the blanking screw from the appropriate
speed control set point and rotate the pot in the desired direction using
a small terminal screwdriver (Figure 4).
Commissioning should be carried out in accordance with building
regulations.
A calibrated moving vane anemometer and hood will be required to
carry out commissioning.
Adjustment valves should be locked in place to prevent further
adjustment.
Once commissioned, the home owner / tenant should be informed that
the unit should not be adjusted as it will have a detrimental effect on
the indoor air quality.
Figure 8. Commissioning Set Points
9.0 WARRANTY
The 5 year warranty starts from the day of delivery and includes parts
and labour for the first year and parts only for the remaining 4 years.
This warranty is void if the equipment is modified without
authorisation, is incorrectly applied, misused, disassembled, or not
installed, commissioned and maintained in accordance with the details
contained in this manual and general good practice.
The product warranty applies to the UK mainland and in accordance
with Clause 14 of our Conditions of Sale. Customers purchasing from
outside of the UK should contact Nuaire International Sales office for
further details.
10.0 AFTER SALES
For technical assistance or further product information, including spare
parts and replacement components, please contact the After Sales
Department.
