Warranty - NuAire AVT Series Installation And Maintenance Manual

Installation and Maintenance
14.0 Maintenance
Isolation - Before commencing work make sure
that the unit, switched live and Nuaire control are
electrically isolated from the mains supply.
The first maintenance should be carried out three months after
commissioning and thereafter at twelve monthly intervals.
These intervals may need to be shortened if the unit is operating
in adverse environmental conditions, or in heavily polluted air.
Note: failure to maintain the unit as recommended will
invalidate the warranty.
Lubrication
Motors are fitted with sealed for life bearings and do not require
any lubrication.
General cleaning and inspection
Clean and inspect the exterior of the fan unit and associated
controls etc. Remove the access panel from the fan unit.
Inspect and, if necessary, clean the fan and motor assemblies
and the interior of the case. If the unit is heavily soiled it may
be more convenient to remove the fan/motor assemblies.
Check that the shutters are free to move smoothly and that they
seal the appropriate fan outlet effectively.
Clean and inspect each fan and motor assembly as follows;
taking care not to damage, distort or disturb the balance of
the impeller.
a) Lightly brush away dirt and dust, paying particular
attention to any build up at the motor ventilating slots.
If necessary, carefully remove with a blade or scraper.
b) Stubborn dirt at the impeller may be carefully removed
with a stiff nylon brush.
c) Check all parts for security and general condition.
Check that the impeller rotates freely.
Refit the assemblies to the unit (see Replacement of Parts)
then replace the access covers.
If Nuaire controls and or remote indicators are fitted, remove
the covers and carefully clean out the interiors as necessary.
Check for damage.
Check security of components.
Refit the access covers.
AIRE-VOLVE Direct Drive External Twin Fans
15.0 Replacement of parts
The only items of the fan units unit likely to require replacement
are the fan/motor assemblies due to a failed motor or damaged
impeller or damper actuator.
Remove the access cover. Disconnect the incoming wiring from
the connection box (located on the fan scroll) on the particular
fan/motor assembly to be removed.
Remove the fan/motor fixings completely, other than the two
slotted hole fixings. Support the fan/motor assembly and
loosen the slotted hole fixings. The fan/motor assembly can
now be turned and withdrawn from the unit.
After replacing the faulty item, refit the fan motor/assembly
using the slotted hole fixings to assist in supporting the
assembly. Re-connect the wiring. Replace the access cover.
16.0 Spare parts
When ordering spares please quote the serial number of the unit
together with the part number. If the part number is not known
please give a full description of the part required.
The serial number will be found on the identification plate
attached to the unit casing.

17.0 Warranty

The 5 year warranty starts from the day of delivery and
includes parts and labour for the first year. The remaining
period covers replacement parts only.
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.
18.0 After Sales
For technical assistance or further product information,
please contact the After Sales Department.
Telephone 02920 858 400
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16. 03. 18. Leaflet Number 671590