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Lo-Carbon
SOLO Plus
SELV
Centrifugal
Bathroom
Stock Ref. N°
427485B (P)
427486B
427487B (HT)
427488B (TM)
Installation and Wiring Instructions
T IPX7
FAN UNITS 12V DC SELV (CLASS III)
CONTROLLERS 220
WITH 12V DC
/Toilet Fan
-240V 50Hz MAINS SUPPLY (CLASS II)
SELV OUTPUT
PLEASE READ INSTRUCTIONS IN CONJUNCTION WITH THE ILLUSTRATIONS.
PLEASE SAVE THESE INSTRUCTIONS
(T)
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Installation and Wiring Instructions for the Lo-Carbon SOLO Plus SELV Bathroom Extract
Fan.
IMPORTANT:
READ THESE INSTRUCTIONS BEFORE COMMENCI NG THE INSTALLATION
DO NOT install this product in areas where the following may be present or occur:
• Excessive oil or a grease laden atmosphere.
• Corrosive or flammable gases, liquids or vapours.
• Ambient temperatures higher than 40°C or less than –5°C.
• Possible obstructions which would hinder the access or removal of the Fan.
SAFETY AND GUIDANCE NOTES
A. All wiring to be in accordance with the current I.E.E.
Regulations, or the appropriate s t a ndards of your
country and MUST be installed by a suitably qualified
person.
B. The Fan should be provided with a loc a l isolator
switch capable of disconnecting all poles, having a
contact separation of at leas t 3mm.
C. Ensure that the mains supply (Voltage, Frequency,
and Phase) complies with the rating label .
D. The Fan should only be used in conjunc t i on wit h t he
appropriate Vent-Axia product s .
E. It is recommended that the connection to the fan
connector terminals is made with flexible cable.
F. When the Fan is used to remove air from a room
containing a fuel-burning applia nce, ensure that the air
replacement is adequate for both the fan and the fuelburning appliance.
G. The Fan should not be used where it is li able to be
subject to direct water spray for prolo nged periods of
time.
H. Where ducted Fans are used to handle mois t ure-
laden air, a condensation trap should b e fi t t e d.
Horizontal ducts should be arranged to slope slightly
downwards away from the Fan.
I. This appliance is not intended for us e by per s o ns
(Including children) with re duc e d phy s i c a l, s e ns or y or
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mental capabilities, or lack of experience and
knowledge, unless they have be en giv e n s upervision or
instruction concerning use of t he appliance by a person
responsible for their safety.
J. Young children should be supervi s e d to ens ur e t ha t they
do not play with the appliance.
K. Fans used for tropical climates.
IMPORTANT:- ONLY CONNECT TOGETHER PRODUCTS FROM T HE LO-CARBON SOLO PLUS SELV RANGE
SINCE THE FANS ARE SPECIALLY DESIGNED TO WORK ON 12V DC AND ARE NOT COMPATIBLE WITH
OTHER VENT-AXIA CONTROLLERS. DO NOT CONNECT MORE THAN ONE FAN TO T HE CONTROLLER.
DESCRIPTION
As standard, the Lo-carbon SOLO Plus SELV is suitable for panel/wall installations, flush or surface mounting, either
in a horizontal or vertical plane. 100mm ducting (flexibl e or straight) can be attached using the supplied adjustable
spigot, providing rear or side exit options. A dapt ors f or System 25 and System 50 ducting can be used in co nj unction
with the adjustable spigot. For wall installations a Wall Kit (25 41 02 White / 25 41 00 Brown) can be used. An
optional filter is also available (449265). P l ease se e our c atalogue or web site (www.vent-axia.com) for more
information on System 25/50 and for alternative du ct ing and termination options.
SITING THE CONTROLLER
1. The controller must not be installed in a shower cubicle or enclosure. It must be sited away from direct
sources of water spray and out of reach (1.5m) of a person using a fixed bath or shower.
2. Site away from direct sources of heat. Ambient temperature range 0 to 40ºC. Do not site in an area
containing excessive levels of grease.
3. Decide where to site the controller and fan (see sect ion siting the fan), and work out the required cable runs.
SITING THE FAN
1. The electrical supply to this fan is 12V DC SELV from the mains controller. This means that the fan may be
installed within reach of a person using a fixed bath or shower, i.e. in a nearby wall. However, the fan must
not be placed where it could be submerged in water or regularly exposed to direct water spray, e.g. from a
shower head whether permanently fixed or movable.
A. INSTALLATION
PANEL MOUNTING (Surface)
1. Cut a 105mm∅ hole through the panel, ensuring t hat t here is sufficient space for the product to be installed and
that the filter (If fitted) can be removed for maintenance.
2. Removing the grille. Firstly remove the front cover by carefully pul l ing each corner of the front panel until it is
free to be removed from the inner grille (Fig 1). Uns crew the two screws at the bottom of the inner grille. T he
screws will remain in the inner grille but will be loose when the grille is ready to be removed (Fig 1). Lift the inner
grille from the bottom edge ensuring not to damage the sensor cable (TM m odel only) attached to the front
assembly and Base Housing (Fig 6).
3. Remove the Spigot Ring from inside the carton and clip over the Spigot Adaptor making sure the lip on the
Spigot Ring locates firmly inside the groove on the Spigot Adaptor (Fig 2). Ensure that the Spigot Adaptor is
firmly located onto the Base Housing and the shutter is still securely fastened and fully functional.
4. Set-up the appropriate speed selection and other features a s out l ined in Section B SETUP.
5. Attach the ducting to the Spigot and locate into the hol e i n the panel ensuring the Skirt is located correctly int o
the Base Housing. Secure into position using appropriate fixtures (Fig 3)
6. Ensure the Impeller rotates freely.
7. Select and follow the appropriate wiring diagram in S ectio n C WI RING.
8. Replace the inner grille ensuring that the PIR sensor cable (TM model only) is reconnected to the PIR sensor
PCB (Fig 6) Replace the front panel.
9. Switch the mains power supply on and check the fan is operating correctly.
PANEL MOUNTING (Flush)
1. Mark and cut a rectangular hole (190mm x 240mm) through the panel, ensuring that there is sufficient sp ace for
the product to be installed and that the filter (If fitted) can be removed for maintenanc e. IMPORTANT: Be careful
to avoid joists and hidden cables.
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2. Removing the grille. Firstly remove the front cover by carefully pulling each corner of the front panel until it is
IMPORTANT
Once complete after approximately 2 minutes, the fan will run as normal.
free to be removed from the inner grille (Fig 1). Uns crew the two screws at the bottom of the inner grille. The
screws will remain in the inner grille but will be loose when the grille is ready to be removed (Fig 1). Lif t the inner
grille from the bottom edge ensuring not to damage the sensor cable (TM model only) attached to the front
assembly and Base Housing (Fig 6).
3. Remove the Spigot Ring from inside the carton and cl i p over the Spigot Adaptor, making sure the lip on the
Spigot Ring locates firmly inside the groove on the Spigot A daptor (Fig 2). The Spigot can be repositioned f or
side exit installations by removing the screw and slidi ng the spigot away from the rear of the Base Housing,
carefully observing the guide rails (Fig 4). The Spi got can then be rotated and repositioned for side exit using the
same guide rails and retaining screw (Fig 4). Ensure that the Spigot Adaptor is firmly located onto the Base
Housing in the required orientation and the shutter is still securely fastened and fully functional.
4. Remove the Skirt and pass the supplied screw fully t hrough the flange of the base housing. Then attach t he 3
supplied Panel Clips (Fig 5) and partially screw int o place until they are properly retained (allowing enoug h gap
for the panel thickness).
5. Set-up the appropriate speed selection and other features a s out l ined in Section B SETUP.
6. Attach the ducting to the Spigot and locate into the hol e i n the panel, ensuring the cable is fed into the Base
Housing and the Panel Clips spring out behind the panel .
7. Secure into position by carefully tightening the Panel Clips. It maybe necessary to hold the product centrally in
the hole while tightening so that no gaps are seen onc e t he cov er is on. IMPORTANT: If power tools are used,
set them to the minimum torque setting or preferably use a manual screwdriver. Do not over tighten.
8. Ensure the Impeller rotates freely.
9. Select and follow the appropriate wiring diagram in S ectio n C WI RING.
10. Replace the inner grille ensuring that the PIR sensor cable (TM model only) is reconnected to the PIR sensor
PCB (Fig 6). Replace the front panel.
11. Switch the mains power supply on and check the fan is operating correctly.
WALL MOUNTING (Surface) For wall installations a Wall Kit (25 41 02 White / 25 41 00 Brown) can be used.
1. Cut a 115mm. ∅ hole through the wall, ensuring that there is sufficient space for the product to be installed and
that the filter (If fitted) can be removed for maintenance.
2. Insert the wall sleeve with the smaller diamet er sleeve on the room-side and cement both ends into posit ion flush
with the wall faces. The wall sleeve should be angl ed downwards, away from the fan, to allow any condensati on
to drain to the outside wall.
3. Outside Grille: Using the Back Plate as a template, m ark the fixing hole centres on the wall. Drill and plug the
wall and fix the Back Plate into position.
4. Fix the Outside Grille on to the Back Plate (screws provided). Ensure the louvres are pointing downwards.
5. Removing the grille. Firstly remove the front cover by carefully pull ing each corner of the front panel until it is free
to be removed from the inner grille (Fig 1). Unscrew the two screws at the bottom of the inner grille. The screws
will remain in the inner grille but will be loose when the grille is ready to be removed (Fig 1). Lift the inner grille
from the bottom edge ensuring not to damage the sensor ca bl e (TM model only) attached to the front assembly
and Base Housing (Fig 6).
6. Remove the Spigot Ring from inside the carton and clip over the Spigot Adaptor making sure the lip on the
Spigot Ring locates firmly inside the groove on the Spigot A daptor (Fig 2). Ensure that the Spigot Adaptor is
firmly located onto the Base Housing and the shutter is still securely fastened and fully functional.
7. Set-up the appropriate speed selection and other features a s out l ined in Section B SETUP.
8. Using the Base Housing as a template, mark the f i xing hole centres on the wall, carefully sliding the spigot i nto
the Wall Liner. Secure the Base Housing into positio n using the screws and fixings provided ensuring the Skirt is
located correctly into the Base Housing (Fig 3).
9. Ensure the Impeller rotates freely.
10. Select and follow the appropriate wiring diagram in Section C WIRING.
12. Replace the inner grille ensuring that the PIR sensor cable (TM model only) is reconnected to the PIR sensor
PCB (Fig 6). Replace the front panel.
13. Switch the mains power supply on and check the fan is operating cor rectly.
B. SETUP
WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE ISOLATED FROM THE
POWER SUPPLY DURING THE INSTALLATION / OR MAINTENA NCE.
On first power up, the fan will run through its initializat i on rout ine.
On T, HT & TM models the fan will switch on and off during this routine (Including the LED)
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1. SELECTING THE CONSTANT TRICKLE OPTION - Switch dip switch 2 into the ON position to activate the
constant trickle operation. To disable the constant trickle option, move dip switch 2 into the OFF posit i on. (Fig 7).
2. SELECTING THE TRICKLE SPEED (if enabled)
This will determine the speed at which the fan will run cont inuously if the constant trickle speed option is enabled (1
above).
• Low trickle speed – Switch dip switch 1 into the OFF position (Fig 7).
• High trickle speed – Switch dip switch 1 into the ON position (Fig 7).
3. SELECTING THE INSTALLATION RUNNING MODE
This will determine the speed at which the fan will run whe n act i vated by either the Pull-cord/LS line/Humidity/PIR.
• Wall mode – Switch dip switch 3 into the OFF position (Fig 7).
• Ducted mode – Switch dip switch 3 into the ON position (Fig 7).
4. SELECTING THE DELAY-ON OPTION (T and HT models) - Switch dip switch 4 into the ON position to activate
the delay-on feature. This will prevent the fan from going to boost for approximately 2 minutes. If the S witch Live is
disconnected (switched off) within this period the fan will not boost. If the Switch Live is still active af ter the period the
fan will boost (Fig 7).
5. TIMER ADJUSTMENT (T, HT, TM models)
The overrun time period is factory set to 15 minutes. The overrun time period may be adjusted from 5-30 minutes
by altering the adjuster on the control PCB [T] (Fig 7).
i. To REDUCE the operating time, turn the adjuster [T] ANTI-CLOCKWISE (Fig 7 ).
ii. To INCREASE the operating time, turn the adjuster [T] CLOCKWISE (Fig 7).
6. HUMIDITY ADJUSTMENT (HT model)
The fan’s Humidity Set-Point is factory set to switch t he fan on at 72%RH (Fig 7).
i. To LOWER the Set-Point, turn the Humidity Adjuster [H] ANTI-CLOCKWIS E. This makes the fan more
sensitive to RH%, i.e. the fan will come on at a lower RH% (Fig 7).
ii. To RAISE the Set-Point, turn the Humidity Adjuster [H] CLOCKWISE. This makes the fan less sensitive to
RH%, i.e. the fan will come on at a higher RH% (Fig 7).
C. WIRING.
WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE ISOLATED FROM THE
POWER SUPPLY DURING THE INSTALLATION / OR MAINTENA NCE.
IMPORTANT
• The Controller MUST be surface mounted to allow air to freely circul ate around the unit. When installed in a
loft void it MUST NOT be enclosed or covered with insulation.
1. Select and follow the appropriate wiring diagram (Fig 8-9)
2. It may be necessary to feed the mains cable around between the outside of the Base Housing and the S kirt to
prevent the cable from being trapped.
3. Check all connections have been made correctly and ensure all terminal connections and cable clamps are
securely fastened.
4. Ensure the impeller rotates and is free from obstructions.
D. SERVICING AND MAINTENANCE.
WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE ISOLATED
FROM THE POWER SUPPLY DURING MAINTENANCE.
1. At intervals appropriate to the installation, t he fan should be inspected and if required cleaned to ensure there is
no build-up of dirt or other deposits.
2. If a filter is fitted, remove the filter and wash in warm soapy water.
3. Wipe the inlets and front face with a damp cloth until clean.
4. Once the filter is dry it can be replaced.
The fan has sealed for life bearings, which do not require lubrication.
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Fig. 3.
Fig. 1.
Fig. 2.
Fig. 4.
Removing the grille
Attaching the spigot
Converting outlet
spigot for side exit
and recess mounting
Surface mounting screw hole locations
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Fig. 6. PIR sensor cable - (TM only)
Fig. 7. Settings
4 = Delay-On timer on or off (Not on TM model)
To remove the
Timer adjuster
Turn anti-clockwise.
To increase time
Humidity adjuster
Fig. 5.
LED position
Dip switch
settings
Cable clamp
wiring.
12V
0V
LS
T H - + -
+
Recess mounting clips
In 3 positions.
(T/HT/TM Models)
To reduce time
Turn Clockwise.
Top view of PCB cover showing pot locations
And dip switch location
cover on TM
models the
sensor
lead must be
disconnected
must be used
with surface
(HT Model)
To LOWER the set-point
Turn Anti-clockwise.
To RAISE the set-point
Turn clockwise.
1 = Trickle speed
2 = Constant trickle on or off
3 = Wall or Duct mode
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Fig. 9. T/HT wiring diagram
Fig. 8. P/TM wiring diagram
IMPORTANT
Once complete after approximately 2 minutes, the fan will run as normal.
On first power up, the fan will run through its initialization routine.
On T, HT & TM models the fan will switch on and off during this routine (Including the LED)
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PRODUCT FICHE
Name:
Vent-Axia
Vent-Axia
Vent-Axia
Vent-Axia
SEC Class F E C C
SEC Value ('Average')
13.97
15.72
26.23
26.23
SEC Value ('Warm')
6.32
7.11
11.86
11.86
SEC Value ('Cold')
27.32
30.75
51.31
51.31
Label Required? (Yes/No=Out of scope)
No
No
No
No
Speed Drive
Multi-Speed
Multi-Speed
Multi-Speed
Multi-Speed
Type HRS (Recuperative, Regenerative, None)
None
None
None
None
Thermal Eff: [ (%), NA(if none)]
N/A
N/A
N/A
N/A
Max. Power Input (W): (@Max.Flow Rate)
8.40
8.40
8.40
8.40
LWA: Sound Power Level (dB)
51.02
51.02
51.02
51.02
Ref. Flow Rate (m3/s)
0.01
0.01
0.01
0.01
Ref. Pressure Diff. (Pa)
N/A
N/A
N/A
N/A
SPI [W/(m3/h)]
0.16
0.16
0.16
0.16
Control Factor & Control Typology: (CTRL/ Typology)
Control Factor; CTRL
1.00
0.95
0.65
0.65
Local Demand
Control
Local Demand
Control
carry over (for regenerative heat exchangers only),
For UVUs (Instructions Install Regulated Supply/Extract Grilles
Façade)
Internet Address (for Disassembly Instructions)
www.vent-axia.com
www.vent-axia.com
www.vent-axia.com
www.vent-axia.com
Sensitivity p. Variation@+20/-20 Pa: (for Non-Ducted Vus)
N/A
N/A
N/A
N/A
Air Tightness-ID/OD-(m3/h) (for Non-Ducted Vus)
N/A
N/A
N/A
N/A
Annual Electricity Consumption: AEC (kWh/a)
2.19
2.03
1.15
1.15
Annual Heating Saved: AHS (kWh/a)
AHS: Average
13.97
15.72
26.23
26.23
AHS: Warm
6.32
7.11
11.86
11.86
AHS: Cold
27.32
30.75
51.31
51.31
For Residential Ventilation Units (Complying Comm ission Delegated Regulation (EU) No 1254/2014)
Model ID (Stock Ref.) :
Declared as: RVU or NRVU/UVU or BVU RVU-UVU RVU-UVU RVU-UVU RVU-UVU
Max. Flow Rate (m3/h) 75.60 75.60 75.60 75.60
Control Typology Manual Control Clock Control
Declared: -Max Internal & External Leakage Rates(%) for BVUs or
-&Ext. Leakage Rates (%) for Ducted UVUs;
Mixing Rate of Non-Ducted BVUs not intended to be equipped
with one duct connection on either supply or extract air side;
Position and description of visual filter warning for RVUs
intended for use with filters, including text pointing out the
importance of regular filter changes for performance and energy
efficiency of the unit
Lo-Carbon Solo Plus
SELV P - 427485
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
Lo-Carbon Solo Plus
SELV T - 427486
Lo-Carbon Solo Plus
SELV HT - 427487
Lo-Carbon Solo Plus
SELV TM - 427488
In F&W In F&W In F&W In F&W
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Notes:-
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Notes:-
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The Guarantee
Applicable only to products installed and used in the United Kingdom. For details of guarantee outside the United Kingdom contact
Vent-Axia guarantees its products for two years from date of purchase against faulty material or workmanship. In the event of any part being found
that it is adequately packed and accompanied by a letter clearly marked “Guarantee Claim” stating the nature of the fault and providing evidence of
to be defective, the product will be repaired, or at the Company’s option replaced, without charge, provided that the product:-
• Has been installed and used in accordance with the instructions given with each unit.
• Has not been connected to an unsuitable electricity supply. (The correct electricity supply voltage is shown on the product rating label
attached to the unit).
• Has not been subjected to misuse, neglect or damage.
• Has not been modified or repaired by any person not authorised by the company.
IF CLAIMING UNDER TERMS OF GUARANTEE
Please return the complete product, carriage paid to your original supplier or nearest Vent-Axia Centre, by post or personal visit. Please ensure
date and source of purchase.
The guarantee is offered to you as an extra benefit, and does not affect your legal rights
your local supplier.
Head Office: Fleming Way, Crawley, West Sussex, RH10 9YX.
EU Authorised Representative: Vent-Axia Bedrijv enweg 17 7442 CX Nijverdal Nederland. [email protected]
UK NATIONAL CALL CENTRE, Newton Road, Crawley, West Sussex, RH10 9JA
SALES ENQUIRIES: Tel: 0344 8560590 Fax: 01293 565169
TECHNICAL SUPPORT: Tel: 0344 8560595 Fax: 01293 539209
For details of the warranty and returns procedure please refer to www.vent-axia.com or write to Vent-Axia Ltd, Fleming Way, Crawley, RH10 9YX
448551F 0721
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