Isolation - Before commencing work make sure that the unit,
switched live and Nuaire control are electrically isolated
from the mains supply and switched live supply.
5.0 Ancillaries
Remote Fail Indicator:
MRXBOX95LH-RFI
Loft Stand:
MVHR-LOFT-STAND
(see figure 10).
If the unit needs to be raised in the loft space, then a stand
should be used.
The four ‘L’ shape brackets should be fitted to the main unit and
this in turn should be bolted to the stand. Place the additional
AV pads on to the stand before bolting to the stand using the
pre inserted holes (Please refer to section 2 to ensure the
correct fitting of the ‘L’ shaped brackets).
6.0 Commissioning
1.
For the required airflow rates refer to the design
specification for the property or refer to Building
Regulations Part F.
2.
The unit is supplied with control of both the normal
airflow and boost airflow. (see figure below).
3.
Commissioning should be carried out using a moving
vane anemometer in conjunction with a hood.
4.
Once commissioned the house owner / tenant should
be informed that the unit should not be adjusted as it
will have a detrimental effect on the indoor air quality
and could result in condensation and mould growth.
7.0 Maintenance/Cleaning
Please allow 300mm each side of the unit to allow access for
maintenance purposes.
1.
Replace filters every 5 years.
Remove the top cover and
slide out the two G4 filters fitted either side of the heat
exchanger. Replace with new filters.
2.
Inspect heat exchanger every 5 years.
Generally check for
damage and security of components. Refit top cover.
3.
Inspecting motors.
Motors can be accessed through
removal side panels.
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.
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).
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 conditional on planned
maintenance being undertaken
.
10.0 Service Enquiries
Nuaire can assist you in all aspects of service. Our service
department will be happy to provide any assistance required,
initially by telephone and If necessary arrange for an
engineer to call.
Technical Support
029 2085 8400
6
14. 02. 14. Leaflet Number 671496
Figure 11. Detail of unit control on side panel.
Boost
Extract
Fan
Supply
Fan
Fan
Failure
+
_
+
_
+
_
For commissioning
refer to user manual
Ventilation controls
Continuous
background
Power
Figure 12. Removing filters.
Installation and Maintenance
MRXBOX95-LH1/LH2 Mechanical Ventilation with Heat Recovery
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.
Figure 10. MVHR-LOFT-STAND.