Maintenance; Warranty - NuAire XBOXER 55 Series Installation, Operating And Maintenance Instructions

Installation, Operating and Maintenance Instructions

9.0 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.
In some Ecosmart units and in some third party controls, variable
speed drives (inverters) are used to provide fan speed control.
After the fan is isolated, allow at least 5 minutes for the capacitors
in the inverter to discharge before commencing any work on the
unit.
9.1 Dampers
At regular intervals check that the blades move freely.
9.2 Filters
Disposable filters should be changed when an appropriate
pressure drop is achieved.
9.3 Heating and Cooling Coils
Coils should have their finned surface examined for accumulation
of dirt, lint and biological contaminants or similar. If necessary,
wash down affected areas with a mild detergent solution and
a soft brush. Care should be taken not to damage the finned
surface, and any cleaning fluids should be rinsed away with water.
A compressed air line may be used to blow out any solids between
fins. Do not probe the coil fin block with metal objects as damage
may cause leaks.
Drain lines should be checked to ensure that they are unobstructed
and free draining. Traps should be checked that they are fully
primed and functioning.
Drain pans should be flushed out periodically to remove
contamination.
Note: The unit application may require particular attention to
this item – Check with Building Management personnel for
details.
9.4 Recuperator/Plate Heat
Exchanger
The recuperator 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 a mild detergent solution for grease deposits. Solvents,
strong alkaline, acidic or any products that may be aggressive to
aluminium should not be used. Do not use cleaning water over
50°C.
Drain lines should be checked to ensure that they are unobstructed
and free draining. Traps should be checked that they are fully
primed and functioning.
Drain pans should be flushed out periodically to remove
contamination, and chemical treatments may be used to provide
protection between service visits.
Note: The unit application may require particular attention to
this item – Check with Building Management personnel for
details.
9.5 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.
9.6 General
Inspect all internal and external surfaces to check for corrosion or
peeling of painted surfaces.
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.
10.0 Service
Service schedule (typical – will depend on site
conditions)
FILTERS
DAMPERS
DAMPER ACTUATORS
VENT WATER COILS
COIL FINNED SURFACES
CHECK DRAIN LINES + DRIP TRAY
CLEAN & FLUSH DRAIN PANS
NUTS, BOLTS, FIXINGS SECURE
FAN BEARINGS
ELECTRIC HEATERS
ELECTRICAL WIRING
FAN IMPELLER
GENERAL

11.0 Warranty

XBOXER 55 units fitted with Ecosmart control carry a 5 year
warranty. Units without controls carry a 2 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 or not installed
commissioned and maintained in accordance with the details
contained in this manual and general good practice.
12.0 Spares
Spare parts and replacement components, and general advice are
available from the Nuaire Ltd Service department.
Telephone 029 2085 8585
Fax 029 2085 8586
13
XBOXER 55
6 MONTHS 12 MONTHS
or
Building
Schedule ?
18. 10. 17. Leaflet Number 671508