Vent-Axia Lo-Carbon Minivent B Assembly instructions

PLEASE READ INSTRUCTIONS IN CONJUNCTION WITH THE ILLUSTRATIONS.
PLEASE SAVE THESE INSTRUCTIONS
Minivent
Lo-Carbon RANGE
In-Line Fan Kit
Stock Ref. N°
Lo-Carbon
Minivent B (Basic)
441421A
Lo-Carbon
Minivent T (Timer)
441422A
Installation and Wiring Instructions
FAN UNITS 12V DC SELV (CLASS III)
CONTROLLERS 220-240V 50Hz MAINS SUPPLY (CLASS II)
WITH 12V DC SELV OUTPUT

2
Installation and Wiring Instructions for the Minivent Lo-Carbon Fan Kit.
IMPORTANT:
READ THESE INSTRUCTIONS BEFORE COMMENCING 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.
•Sudden ductwork bends or transformations close to the Fan.
SAFETY AND GUIDANCE NOTES
A.All wiring to be in accordance with the current I.E.E. Regulations, or the
appropriate standards of your country and MUST be installed by a suitably
qualified person.
B.The Fan should be provided with a local double pole isolator switch having a
contact separation of at least 3mm.
C.The control unit is intended for permanent connection to the fixed electrical
supply.
D.The controller is only suitable for use with one fan unit.
E.The fan is only suitable for use with the safety extra low voltage DC transformer
controller supplied. The unit MUST NOT be connected directly to the mains
voltage electrical supply.
F. Ensure that the mains supply (Voltage, Frequency, and Phase) complies with
the rating label.
G. The transformer controller requires free air circulation and must not be
recessed into the mounting surface or covered with any insulating material that
might be in a ceiling or roof void.
H.The Fan should only be used in conjunction with the appropriate Vent-Axia
products.
I. It is recommended that the connection to the fan connecter terminals is made
with flexible cable.
J. When the Fan is used to remove air from a room containing a fuel-burning
appliance, ensure that the air replacement is adequate for both the fan and the
fuel-burning appliance.
K.The Fan should not be used where it is liable to be subject to direct water spray
for prolonged periods of time.
L. Where ducted Fans are used to handle moisture-laden air, a condensation trap
should be fitted. Horizontal ducts should be arranged to slope slightly
downwards away from the Fan.
M. This appliance is not intended for use by young children or infirm persons
without supervision.
N.Young children should be supervised to ensure that they do not play with the
appliance.

3
~
N
L
1 Phase Supply
(220-240V 50Hz). FUSE
Switched
Fused Spur
+
LN 8V 11V
-ve
Controller
-
Fan
SELV Supply
Pullcord
Lower Speed
for Toilet
Higher Speed for
Bathroom
A INSTALLATION.
The unit is designed to be installed in 100mm ducting. The ducting run should not exceed 3m. The flexible ducting
should be fully extended to obtain the best results. Position the fan at the highest point on the system with both
ducting runs sloping downwards from this point. In circumstances where an excessive amount of moisture is
present in the air then a condensation trap should be installed. Pass the cable supplying power to the fan through
the grommet provided. Secure the duct to the fan once wiring is complete.
B. WIRING.
WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE ISOLATED FROM
THE POWER SUPPLY DURING THE INSTALLATION / OR MAINTENANCE.
NOTE: The Controller MUST be surface mounted to allow air to freely circulate 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. 2-3).
2. Check all connections have been made correctly and ensure all terminal connections and cable clamps are
securely fastened.
3. The cable entry must be made using the cable grommet.
4. Ensure the impeller rotates and is free from obstructions.
Fig. 2.
Minivent Lo-Carbon B
Basic Model.
Select the wiring configuration required for the Toilet or Bathroom.
Inlet grille
Outlet
g
rille
Fan lead to
controller
Airflow
Typical installation

4
Bath/Utility Room
Ls
~N
Switch
Toilet
SELV Supply
NL +ve -ve
+
-
Fan
Select Bath/Utillity (High Speed)
or Toilet (Low Speed) using the
selector switch
mins
Timer Adjuster.
Control Timer
Fig. 3.
Minivent Lo-carbon T
Timer Model.
Switch the selector switch to the required mode.
Timer Adjustment.
The overrun time period is factory set to 15 minutes. The overrun time period may be adjusted from 5-25 minutes,
by altering the adjuster on the back of the Control Timer.
Before adjusting the timer, switch off the Mains Supply.
1. Remove the Controller Unit.
2. To REDUCE the operating time, turn the adjuster ANTI-CLOCKWISE on the back of the Controller.
3. To INCREASE the operating time, turn the adjuster CLOCKWISE on the back of the Controller.
4. Replace the front of the Control Timer.
5. Reconnect the mains supply.

5
PRODUCT FICHE
For Residential Ventilation Units (Complying Commission Delegated Regulation (EU) No 1254/2014)
Name: Vent‐AxiaVent‐Axia
ModelID(StockRef.):Lo‐CarbonMiniVent
B‐441421
Lo‐CarbonMiniVent
T‐441422
SECClassEE
SECValue('Average')17.1518.74
SECValue('Warm')7.768.48
SECValue('Cold')33.5536.67
LabelRequired?(Yes/No=Outofscope)NoNo
Declaredas:RVUorNRVU/UVUorBVURVU‐UVURVU‐UVU
SpeedDriveMulti‐SpeedMulti‐Speed
TypeHRS(Recuperative,Regenerative,None)NoneNone
ThermalEff:[(%),NA(ifnone)]N/AN/A
Max.FlowRate(m3/h)111.60111.60
Max.PowerInput(W):(@Max.FlowRate)6.506.50
LWA:SoundPowerLevel(dB)40.5240.52
Ref.FlowRate(m3/s)0.020.02
Ref.PressureDiff.(Pa)N/AN/A
SPI[W/(m3/h)]0.080.08
ControlFactor&ControlTypology:(CTRL/
Typology) 
ControlFactor;CTRL1.000.95
ControlTypologyManualControlClockControl
Declared:‐MaxInternal&ExternalLeakage
Rates(%)forBVUsorcarryover(for
regenerativeheatexchangersonly),
‐&Ext.LeakageRates(%)forDuctedUVUs;
N/AN/A
MixingRateofNon‐DuctedBVUsnot
intendedtobeequippedwithoneduct
connectiononeithersupplyorextractair
side;
N/AN/A
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
N/AN/A
ForUVUs(InstructionsInstallRegulated
Supply/ExtractGrillesFaçade)InF&WInF&W
InternetAddress(forDisassembly
Instructions)www.vent‐axia.comwww.vent‐axia.com
Sensitivityp.Variation@+20/‐20Pa:(for
Non‐DuctedVus)N/AN/A
AirTightness‐ID/OD‐(m3/h)(forNon‐Ducted
Vus)N/AN/A
AnnualElectricityConsumption:AEC(kWh/a)1.040.97
AnnualHeatingSaved:AHS(kWh/a) 
AHS:Average17.1518.74
AHS:Warm7.768.48
AHS:Cold33.5536.67

6
C. 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, the fan should be inspected and cleaned to ensure there is no build
up of dirt or other deposits.
The Lo-Carbon fan has sealed for life bearings, which do not require lubrication.

7

8

Head Office: Fleming Way, Crawley, West Sussex
UK NATIONAL CALL CENTRE, Newton Road, Crawley, West Sussex, RH10 9JA
SALES ENQUIRIES: Tel: [phone] Fax: [phone]
TECHNICAL SUPPORT: Tel: [phone] Fax: [phone]
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
404176B 0916
The Guarantee
Applicable only to products installed and used in the United Kingdom. For details of guarantee outside the United Kingdom contact your local
supplier.
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
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
that it is adequately packed and accompanied by a letter clearly marked “Guarantee Claim” stating the nature of the fault and providing evidence of
date and source of purchase.
The guarantee is offered to you as an extra benefit, and does not effect your legal rights