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Installation, Operating and Maintenance Instructions
10.0 Maintenance
It is recommended that PPE is always used during the maintenance of
Air Handling Equipment – gloves, eye shields and respiratory mask.
Isolation - Before commencing work make sure
that the unit and Nuaire control are electrically
isolated from the mains supply.
The appropriate maintenance interval will depend on the operating
environment. It is recommended that an initial inspection be carried
out after 3 months of normal operation, and the ongoing maintenance
programme determined based on the unit's condition.
As noted previously, contamination occurring if the unit is operated
during the construction phase, may be considerably greater than in
normal operation.
10.1 Filters (2 x G3 Fitted as standard)
Disposable filters should be changed when an appropriate pressure
drop is achieved. The filters may also be cleaned by vacuuming. For
replacement filters please call Nuaire on 02920 858 200, quoting
Part No. XBX-FILTERKIT.
10.2 Counter-flow Plate Heat Exchanger
The heat exchanger block is normally protected from dust and
contamination by upstream pre-filters. It is possible to clean the unit
with compressed air in the case of dust deposits or by spraying with
clean water. Do not use cleaning water at temperatures over
30 deg C. It is essential that the heat exchanger is air dried (without the
application of heat) before being refitted to the unit.
Note that the heat exchanger is constructed from an advanced
polymer that allows moisture transfer. On no account replace the heat
exchanger with a physically similar type without this facility, as
condensate leakage will occur.
10.3 Bypass Actuator
Where applicable, some models within this range feature a bypass
actuator slider mechanism. Manually check the condition of the
mechanism at regular intervals, re-greasing as required. Ensure that the
pivot and sliding mechanism of the bypass actuator linkage is
lubricated with a small amount of high performance multi purpose
Lithium based grease.
Figure 7: Actuator damper linkage.
ACTUATOR
DAMPER
DAMPER LINKAGE
10.4 Fans and Motors
Fan bearings should be manually checked at regular intervals for
condition. Standard fan bearings are supplied as 'sealed for life' and
have an anticipated life of 40,000 hours.
Motors have an enclosed bearing housing and are pre-greased for life.
Check all fixings are secure.
10.5 General
Inspect all internal and external surfaces to check for corrosion.
Thoroughly clean affected areas with a wire brush, apply a coat of zinc
rich primer or similar, and re-touch with suitable finishing paint.
Ensure tightness of all nuts, bolts, and fixings.
Check all components for general condition.
11.0 Warranty
Project specific warranty arrangements apply to this product – refer to
project documentation.
This warranty is void if the equipment is modified without
authorisation, is incorrectly applied, misused 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.
12.0 After Sales
For technical assistance or further product information, including spare
parts and replacement components, please contact the After Sales
Department.
ACCESS PANEL
7
XB-EFA-8L-BK & XB-EFA-8R-BK
Telephone 029 2085 8400
Fax 029 2085 8444
02. 05. 19. Leaflet Number 671702
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