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22. 07. 20. Document Number 671813
Nuaire |
Western Industrial Estate
|
Caerphilly
|
CF83 1NA
|
nuaire.co.uk
MRXBOX-SIL4
4 Way Silencer For Wall / Cupboard
Mounted MRXBOXAB-ECO4 Units
Installation and Maintenance
1.0 SAFETY INFORMATION
•
Ducting must be securely fixed with screws to the spigot to prevent access to live parts. Duct
runs terminating close to the fan must be adequately protected by suitable guards.
•
This appliance should not be used by children or persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge, unless they have been given supervision
or instruction concerning the safe use of the appliance by a person responsible for their safety.
Children shall not play with the appliance. Cleaning and user maintenance shall not be carried
out by children.
1.1 Symbols
REFER TO INSTRUCTION MANUAL
Read and understand the installation and maintenance manual before installing,
operating or maintaining this product.
1.2 Important Information
This manual contains important information on the safe and
appropriate assembly, transport, commissioning, operation,
maintenance, disassembly and simple troubleshooting of the product.
While the product has been manufactured according to the accepted
rules of current technology, there is still a danger of personal injury or
damage to equipment if the following general safety instructions and
the warnings contained in these instructions are not complied with.
•
Read these instructions completely and thoroughly before
working with the product.
•
Keep these instructions in a location where they are accessible
to all users at all times.
•
Always include the operating instructions when you pass the
product on to third parties.
1.3 Personal Protective Equipment
The following minimum Personal Protective Equipment (PPE) is
recommended when interacting with Nuaire product:
•
Protective Steel Toed Shoes -
when handling heavy objects.
•
Full Finger Gloves (Marigold PU800 or equivalent) -
when
handling sheet metal components.
•
Semi Fingerless Gloves (Marigold PU3000 3DO or equivalent)
- when conducting light work on the unit requiring tactile
dexterity.
•
Safety Glasses
- when conducting any cleaning/cutting operation
or exchanging filters.
•
Reusable Half Mask Respirators
- when replacing filters which
have been in contact with normal room or environmental air.
Nuaire would always recommend a site specific risk assessment by a
competent person to determine if any additional PPE is required.
2.0 INTRODUCTION
Nuaire’s MRXBOX-SIL4 (4 Way Silencer) is designed for use with
MRXBOXAB-ECO4 MVHR units. The product offers a four way
attenuation solution to improve in duct noise levels; the bespoke
solution allows both elements to be close coupled reducing breakout
noise in this area and a more aesthetically pleasing installation.
3.0 MECHANICAL INSTALLATION
Installation must be carried out by competent personnel in
accordance with the appropriate authority and conforming to all
statutory governing regulations.
Please note a clear working space is required around the installed
MVHR unit to allow the cover to be removed and provide sufficient
access for maintenance such as filter change. Please allow a minimum
of 480mm in front of the unit.
The fan must be installed indoors, on a suitable wall away from direct
sources of frost, heat, water spray or moisture generation.
For a vibration-free result the unit must be mounted to a solid wall.
When fitting a MRXBOX-SIL4 in conjunction with a
MRXBOXAB-ECO4 the unit should be mounted using the
alternative wall mounting method supplied under product code
MRXBOX-AV4 (Figure 4). Under no circumstances should this
assembly be fitted using the standard hanging bracket supplied
with the MVHR unit as this is not rated for the combined load.
For more detailed information on structural and installation
requirements of the MRXBOXAB-ECO4 unit please refer to the
installation documents supplied with the MVHR unit and also
MRXBOX-AV4 for wall mounting details.
3.1 Pre-assembly
The silencer is supplied with 4x 200mm O-rings, these should be fitted
over the 200mm foam spigots on the top of the MVHR unit.
Secure the toggle clamp and catch plate to both sides of the MVHR
unit and silencer with the M4 fixings supplied (Figure 1).
If any Ecosmart products are to be used the connection to the MVHR
unit should be made at this point as this is situated on the rear panel
and access will be restricted once in place.