19. 08. 21. Document Number 671220 9
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
AX
Installation Manual
7.0 MAINTENANCE
Isolation - Before commencing work, make sure that the unit,
switched live and Nuaire controls are electrically isolated from the
mains supply.
It is important that maintenance checks are recorded and that the
schedule is always adhered to, in all cases, the previous report should
be referred to.
Only appropriately qualified personnel, familiar not only with the
electrical aspect of the work but with the plant, area or application
served by the unit, should carry out routine and preventative
maintenance on this product.
Ensure all mechanical and electrical connections and fixings are secure
and that inlet and outlet duct work is free of any obstruction or debris.
Briefly switch the fan on/off to ascertain correct direction of rotation,
compare the rotational label applied to the fan case and correct if
necessary.
Motors are fitted with sealed for life bearings and do not require any
lubrication.
7.1 Routine Maintenance
•Clean all areas of unit of dust or fibres and treat any areas of
corrosion, including lifting lugs / eye bolts.
•Check all areas and ensure no damage is present on units i.e.
impeller cracked, fan cowl bent, foot cracked etc.
•Check all access doors for leakage and if necessary locks should be
adjusted and any replacement gasket materials should be replaced
as required.
•Check insulation resistance is adequate, it is imperative this is
checked after any prolonged shut down period.
•Check all fasteners and tighten if necessary.
•Ensure no excessive vibration.
7.2 Every 3 Months
•Check sealing of motor and gland plate is in good condition.
7.3 Annually
•Thoroughly inspect the unit and its components for corrosion,
acting immediately to treat/restore any damaged areas.
•Check all cables are in good condition and all electrical terminals
within the unit are tight.
•Check all earth connections.
•Check all cables are in good condition.
•Check bearing condition and if necessary re-grease bearings for
160 motor frames and larger.
7.4 Impellers
Impellers are dynamically balanced during manufacture, no special
treatment is required during maintenance, other to clean and remove
all dust and dirt residue taking care not to disturb the balance weights.
Remove stubborn dirt with warm soapy water – do not use caustic
fluids.
If an ATEX compliant unit, observe the advice of the guidance notes
in document 671216.
The maintenance programme must conform to ‘good custom and
practice’ and to the published recommendations of associations such
as the HVCA, CIBSE etc. The HVCA’s publication ‘Standard Maintenance
Specification for Mechanical Services in Buildings’ Vol 2 Ventilating and
Air Conditioning is a recommended reference.
8.0 WARRANTY
Axus AX units have a 3 year warranty. Units with Ecosmart control have
a 5 year warranty. The 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.
Failure to maintain the unit as recommended will invalidate the
warranty.
9.0 END-OF-LIFE AND RECYCLING
Where possible Nuaire use components which can be largely recycled
when the product reaches its end-of-life:
•Fans, motors, controls, actuators, cabling and other electrical
components can be segregated into WEEE recycling streams.
•Sheet metal parts, aluminium extrusion, heating/cooling coils and
other metallic items can be segregated and fully recycled.
•Cardboard packaging, wood, used filters and other paper
components can be largely recycled or fully processed in energy
from waste centres.
•Remaining items can be further segregated for energy from waste
centres or, as a last resort, sent to landfill. Please call After Sales
Support for further information on items not listed above.
Ensure that Nuaire product is made safe from any electrical / water
/ refrigerant supplies before dismantling commences. This work
should only be undertaken by a qualified person in accordance with
local authority regulations and guidelines, taking into account all
site based risks.
10.0 AFTER SALES AND REPLACEMENT PARTS
For technical assistance or further product information, including spare
parts and replacement components, please contact the After Sales
Department.
If 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.
Telephone 02920 858 400
aftersales@nuaire.co.uk
Technical or commercial considerations may, from time to time,
make it necessary to alter the design, performance and dimensions
of equipment and the right is reserved to make such changes without
prior notice.
