NuAire IAQ-V125 Bedienungsanleitung
1
16. 03. 20. Document Number 671852Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
IAQ-V125
125mm Ø Carbon Filtered Valve
Installation Manual
1.0 SAFETY INFORMATION
• Precautions must be taken to avoid the back-flow of gases into the room from the open flue of
gas or other fuel-burning appliances.
• 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.
• To ensure levels of NO2 are being reduced, the carbon filters should be replaced every 2 years as
per our recommended maintenance.
• Carbon filters/pellets are not to be ingested, ensure hands are thoroughly washed after handling.
1.1 Hazard Symbols
GENERAL WARNING
Signifies a general warning regarding hazard specified by supplementary information.
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 PPE (Personal Protective Equipment) is
recommended when interacting with Nuaire product:
•Full Finger Gloves (Marigold PU800 or equivalent) - when
handling sheet metal components or knives. When using silicone,
Butyl rubber gloves (0.4mm) are recommended.
•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 125mm diameter Carbon Filtered Supply Valve has been
specifically designed to reduce the level of airborne contaminants
entering the property, in particular up to 91% of nitrogen dioxide
(NO), thus improving indoor air quality (IAQ).
The IAQ-V125 valves incorporate a carbon filter. The valve is adjustable
for commissioning purposes, lockable and spring loaded to prevent
vibration. Replacing the carbon filter is quick and easy and leaves the
valve adjustment unaffected.
An airflow screen is provided and can be fitted to deflect the airflow
away from walls and other obstructions, such as smoke alarms.
IAQ-V125 valves should be fitted on the supply leg of the ducting and
therefore do not require insulation (Figure 2).
To aid in maintenance, the valves are easily removable and do not
require re-commissioning.
2.1 Main Features
•IAQ-V125 can remove up to 91% NO2 entering the property.
•Low profile.
•Adjustable for commissioning purposes.
•Decorative panel to cover commissioning screw.
•Spring loaded to prevent vibration.
•Valve easily removed for maintenance and does not require
re-commissioning.
•Quick and easy carbon filter replacement.
•Supplied with airflow screen to enable air to be directed away from
obstacles.
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16. 03. 20. Document Number 671852Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
IAQ-V125
Installation Manual
2.2 Performance Data
Nuaire’s carbon filters have been independently tested and offer up to
91% reduction in NO2. The unit meets planning obligations and world
health organisation's recommendations.
2.3 Resistance Data
When selecting the MVHR unit please ensure that the resistance
through the carbon filter has been allowed for. Please see
www.nuaire.co.uk/iaq-valve for further details.
3.0 MECHANICAL INSTALLATION
Installation must be completed by competent persons, in accordance
with good industry practice and should conform to all governing and
statutory bodies i.e. IEE, CIBSE, etc.
3.1 Installation - Void Depths Exceeding 200mm
•It’s recommended that ridged ducting and a plenum is used for
void depths exceeding 200mm.
•The vertical ducting is to be fitted below the specified ceiling level
and cut to length after ceilings have been installed.
•Ceilings to be installed with a 145mm hole to accommodate the
ducting (Note: this is a larger hole to accommodate the main body
installed at a later stage).
•Cut the length of duct 35mm above the underside of the ceiling
(Figure 3).
•Insert the main body into the hole and mark the fixing positions.
•Remove the main body from the hole, drill and insert with
appropriate fixings.
•Apply a thick bead of sealant around the outer section of the
spigot before re-fitting and fixing in place with appropriate fixings
(not supplied). Ensure a good seal is achieved between the duct
and the main body (Figure 4).
•See important note and (Figure 13) regarding fixing within 1 metre
of a wall (Section 2.3).
•Place the carbon filter in the valve damper assembly (ensure the
filter sits level on the valve assembly).
•Fit the combined assemblies to main body by aligning the triangle
symbols, then press together and twist damper assembly clock
wise, (you will hear a click when damper is in a ‘locked’ position
(Figure 5).
•Once all valves are in position they can be commissioned using the
adjustment screw.
•On completion, clip decorative panel in place (Figure 6).
•Wash hands thoroughly after handling.
Note: The gap between the airflow disk and the main body determines
the airflow that can pass through the valve. This gap can be adjusted
using the screw on the underside of the flow disk (clockwise to reduce
the gap and flow), (anti-clockwise to increase the gap and flow).
Main Body
Carbon filter
Valve damper
Spring
Airflow disc
M5 commissioning
screw
Decorative panel
M5 nut
Exhaust air from
kitchen/bathroom to
outside via air brick
Minimum distance as specified
in building regulations
Intake air
from outside
via air brick
All duct between MVHR
unit and atmosphere to
be insulated Insulated
supply duct
Air supply
to lounge
via Air Valve
in ceilings
Q-AIRE-EV125F
Extract Valve
Extract air from
kitchen/bathroom
via Air Valve in ceilings
Air supply
to bedrooms
via Air Valve
in ceilings
Top of ceiling void
Nuaire wall
mounted unit
MVHR-DRAIN
Condensate drain, uninsulated
drain pipe with min 5° fall running to SVP
Insulated
extract duct
IAQ-V125
Supply Valve with
Carbon Filter
1
2
IAQ-V125 Components
Typical Example of Cupboard Mounted MVHR with IAQ-V125 Installed in the Supply Duct
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16. 03. 20. Document Number 671852Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
IAQ-V125
Installation Manual
3.2 Installation - Plenum Box
Minimum ceiling void depth of 180mm, maximum 440mm. For voids
exceeding 440mm, rigid ducting should be used.
IMPORTANT
If a valve is situated within 1 metre of an obstruction (e.g. a wall or smoke
alarm), then the airflow screen should be fitted to guide the airflow away
from the obstruction (Section 2.3).
3.2.1 First Fix Installation of IAQ-PLENUM (Plenum box)
Prior to the ceilings being installed:
•Using a maximum length of 300mm flexible ducting, connect to
the ridged ducting installed and seal appropriately.
Note: To comply with building regulations the flexible ducting
must be pulled taught to 90% of its length.
•Position the IAQ-PLENUM directly above the allocated hole
position for the IAQ-V125 and secure the unit to surface above
using an appropriate fixing (Figure 8).
Note: The fixing will need to be removed later to fit the IAQ-V125
(once ceilings are installed). Access to the fixing is through the hole
in the base of the unit and through the ceiling below.
•Connect the free end of flexible ducting to a short length of 204 x
60 rigid ducting and insert duct into the spigot of the plenum box
and seal all joints appropriately.
3.2.2 Installation of IAQ-V125 (Carbon Filter Valve)
Following the ceilings being suspended:
•Cut a 145mm Ø hole in the ceiling at designated vent position (Note: this
is a larger hole to accommodate the main body installed at a later stage).
•Remove the fixing screw from inside the plenum box and replace with the
sealing plug provided. Lower the Plenum box into position over the hole
cut in the ceiling (Figure 9).
•Place the main body into the hole and fix with appropriate screws.
•See important note and Section 2.3 regarding fixing within 1 metre of a
wall. If required fit Airflow screen to flow disk (Figure 13).
•Place the carbon filter in the valve damper assembly (ensure the filter sits
level on the valve assembly).
•Fit the combined assemblies to main body by aligning the triangle symbols,
then press together and twist damper assembly clock wise, (you will hear a
click when damper is in a ‘locked’ position (Figure 5).
•Once all valves are in position they can be commissioned using the
adjustment screw.
•On completion, clip decorative panel in place (Figure 6).
•Wash hands thoroughly after handling.
Note: The gap between the airflow disk and the main body determines
the airflow that can pass through the valve. This gap can be adjusted
using the screw on the underside of the flow disk (clockwise to reduce
the gap and flow, anti-clockwise to increase the gap and flow).
40 ± 5 mm
50 mm
Cut line
Cut from
underside of ceiling
Ducting
Sealant
3
6
4
5
Cutting Vertical Duct
Cutting Vertical Duct
Fitting Valve Main Body
Fitting Filter Assembly
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16. 03. 20. Document Number 671852Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
IAQ-V125
Installation Manual
Underside View
Sectioned Side View
Ø 138
325
240
173
204 x 60 spigot
24
Foam seal
Bottom access hole
(access for the first fit fixing)
272
First fix - top fixing hole
Section of 204 x 60 duct
(optional - not supplied
Top
mounting
surface
IAQ-PLENUM
(plenum box)
Plaster board ceiling
(not installed at first fix stage)
Top fixing screw
Flexible
ducting
204 x 60 spigot
Sections of
204 x 60 ridgid duct
IAQ-V125 assembled
If the valve is 1m or less to an
obstruction or wall, position
main body/damper so that
one of the tri-sectors points
towards the obstruction.
It can then be blanked off
using the airflow screen.
The airflow screen.
7
8
11
12
9
10
IAQ-PLENUM Dimensions
First Fix Plenum
First Fix Plenum
First Fix Plenum
Fitted Sealing Plug
Fitting Valve Main Body to IAQ-PLENUM
3.3 Fitting the Airflow Screen
If a valve is situated within 1 metre of an obstruction (e.g. a wall or
smoke alarm) then the airflow screen should be fitted to guide the
airflow away from the obstruction (Figure 13).
•Fully unscrew the damper assembly.
•Slide the airflow screen into place ensuring a positive fit (an
audible click will be heard).
•Once in its locked position, re-tighten the fixing screw.
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16. 03. 20. Document Number 671852Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
IAQ-V125
Installation Manual
4.3 Carbon Filter Replacement
•Rotate the valve in an anti-clock wise direction (Figure 14).
•The damper and filter assembly will release and can be removed
from the main valve body.
•Separate the damper assembly and carbon filter assembly (Figure
15).
•Place the carbon filter cartridge in a sealable bag to capture any
loose particles.
•Fit a new carbon filter cartridge in the damper assembly and re-fit
the combined assembly in the reverse to the procedure detailed
above.
•Wash hands thoroughly after handling.
5.0 WARRANTY
The 5year 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.
6.0 END-OF-LIFE AND RECYCLING
Where possible Nuaire use components which can be largely recycled
when the product reaches its end-of-life:
•EPP, plastic ducting, nylon corner pieces, plastic heat exchangers,
packaging material and other plastic components can be
segregated into mixed plastic and widely 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 and processed in
accordance with the zero waste hierarchy. Please call After Sales
Support for further information on items not listed above.
IMPORTANT
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.
7.0 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.
4.0 MAINTENANCE
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.
To ensure the carbon filter maintains its high reduction of NO2, the
filter must be replaced once the end of its lifespan has been reached.
The lifespan of the carbon filter in normal conditions is shown in
Section 3.2.
4.1 Annually
•Clean all areas of unit and treat any areas of corrosion.
4.2 Carbon Filter Lifespan & Replacement Codes
Replacement filters can be purchased direct from Nuaire using the code
provided in the table below.
Unit Code Carbon Filter Carbon Filter
Lifespan
Carbon Filter
Weight
IAQ-V125 IAQ-V125-FILTER 2 years 0.6 Kg
13
14
Removing Filter Cover
Removing Carbon Filter
Telephone 02920 858 400
aftersales@nuaire.co.uk
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16. 03. 20. Document Number 671852Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
IAQ-V125
Installation Manual
NOTES
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16. 03. 20. Document Number 671852Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
IAQ-V125
Installation Manual
NOTES
8
16. 03. 20. Document Number 671852Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA |nuaire.co.uk
IAQ-V125
Installation Manual
NOTES
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