Vent-Axia Centra Series Assembly instructions

CONTINUOUS EXTRACT FAN

Installation and Wiring Instructions

Stock Ref. N°

44 17 82 B

PLEASE READ INSTRUCTIONS IN CONJUNCTION WITH ILLUSTRATIONS.

PLEASE SAVE THESE INSTRUCTIONS.

Centra

IPX4

220-240V~50Hz

Installation and Wiring Instructions for the Centra Range of Extractor Fans.

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.

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 isolator switch capable of disconnecting all poles,

having a contact separation of at least 3mm.

C. Ensure that the mains supply (Voltage, Frequency, and Phase) complies with the rating

label.

D. The Fan should only be used in conjunction with the appropriate Vent-Axia products.

E. The fan should only be used in conjunction with fixed wiring.

F. 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.

G. The Fan should not be used where it is liable to be subject to direct water spray for

prolonged periods of time.

H. 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.

I. This appliance is not intended for use by persons (including children) with reduced physical,

sensory or mental capabilities, or lack of experience and knowledge, unless they have been

given supervision or instruction concerning use of the appliance by a person responsible for

their safety.

J. Young children should be supervised to ensure that they do not play with the appliance.

DESCRIPTION

The Centra 100mm fan is a continuously running extract fan for kitchens, utility rooms,

bathrooms and toilets.

The product incorporates an airflow detection system that detects the installation duct

resistance and maintains the correct fan speed to achieve the preset extract flow rate of

either 6l/s, 9l/s or 15l/s, minimising energy use and noise (see Section C-Setup for more

information).

Long life ball bearing DC motor with anti-vibration mounts provides virtually zero noise

transmission into plasterboard/panels for silent operation.

The fan can be wall or panel/ceiling mounted.

ACCESSORIES (not supplied)

WALL FITTING KIT

A range of white (stock ref. 254102) or brown (stock ref. 254100) 100mm wall kits are

available for installing into most walls using telescopic liners supplied.

A. INSTALLATION

IMPORTANT: The fan should only be used in conjunction with fixed wiring.

PANEL/CEILING MOUNTING

1. For panel/ceiling mounting the fan should be installed into a closed duct system of

at least 1.2m long or protected by an exterior air grille that must comply with the

standard requirements of your country to prevent access to the fans impeller.

2. Cut a 105mm diameter hole.

3. Loosen the screw at the bottom of the grille and remove the front grille. Mark the

screw centres through the holes in the fan back plate. Drill, plug and screw into

position.

4. Attach ducting as required for the installation.

5. Wire the fan as described in Section B-Wiring. Adjust any settings as required

(see Section C-Setup).

6. Replace the grille and tighten the retaining screw.

7. After installation, ensure impeller rotates freely.

WALL MOUNTING

1. For wall mounting cut a 117mm diameter hole through the wall and insert the wall

sleeve. Slope the sleeve slightly downwards away from the fan. Cut to length and

cement both ends into position flush with the wall faces.

2. Loosen the screw in the bottom of the grille and remove the front grille. Mark the

screw centres through the holes in the fan back plate. Drill, plug and screw into

position.

3. Fix exterior grille into position with the louvres positioned downwards. (Note:- The

grille must comply with the standard requirements of your country to prevent

access to the fans impeller).

4. Wire the fan as described in Section B-Wiring. Adjust any settings as required

(see Section C-Setup).

5. Replace the grille and tighten the retaining screw.

6. After installation, ensure impeller rotates freely.

B. WIRING.

WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE

ISOLATED FROM THE POWER SUPPLY DURING THE INSTALLATION /

OR MAINTENANCE.

IMPORTANT

The fan should only be used in conjunction with fixed wiring.

The cross - sectional area of supply cord used should be ranged from 1 -1.5mm2.

Cable entry can only be made from the rear of the fan.

The extraction fan is suitable for connection to 220-240V 50Hz supply.

The fan is a class ll double insulated product and MUST NOT be earthed.

1. Select and follow the appropriate wiring diagram. (Fig. 1, 2 or 3)

2. Check all connections have been made correctly and ensure all terminal

connections and cable clamps are securely fastened.

3. Ensure the impeller rotates and is free from obstructions.

C. SETUP

WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE

ISOLATED FROM THE POWER SUPPLY DURING THE INSTALLATION /

OR MAINTENANCE.

Accessing the control settings – (Fig. 4 and 5)

1. Loosen the screw in the bottom of the grille and remove the front grille.

2. Carefully pull the inner cap from the centre of the fan away from the chassis.

3. Adjust the settings as outlined below.

Trickle speed selection (6l/s or 9l/s) – (Fig. 7)

In normal running mode the fan can extract at either 6l/s (22m3/h) or 9l/s (32m3/h) flow

rate. The fan will boost to 15l/s (54m3/h) when the LS connection is switched.

Factory set at 6l/s (22m3/h).

Remove jumper connector (JP1) if 9l/s (32m3/h) extract flow rate is

required.

Airflow detection system – enable/disable (Fig. 8)

The airflow detection system will detect the installation duct resistance and also react to

external wind conditions to ensure the fan maintains a constant extraction rate. This can

cause the fan to ramp up and down and in most applications will not be required. To turn

this feature on, complete the following:

Push switch (SW1) into the on position to turn on constant flow mode.

Push switch (SW1) into the off position to turn off constant flow mode.

(Factory set)

IMPORTANT – On first power up, the fan will run through its initialisation routine. This

will involve the fan running on maximum speed for 10-20 seconds. After which the fan

will run as normal and will not need to be initialised/calibrated again. The fan will

remember its settings if there is a power cut.

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, the fan should be inspected and cleaned to

ensure there is no build up of dirt or other deposits.

2. Carefully push the front panel of the grille upwards away from the base part of the

grille (fig. 6).

3. Wipe the inlets and front face with a damp cloth until clean.

The fan has sealed for life bearings, which do not require lubrication.

Siting

the

fan.

 

Fig.2 Continuous boost (15l/s) with no trickle facility

Fig.3 Continuous trickle with boost facility

Fig.1 Continuous trickle (6l/s or 9l/s) with no boost facility

Fig.4. Removing the grille for wiring and setting the controls

1. Loosen screw. 2. Pull grille slightly away from

bottom edge.

3. Push grille upwards until

clear from the fan chassis.

Fig.8. Airflow detection system

Auto sensing mode = Push switch (SW1)

into the on position to turn on airflow

detection system.

Manual mode = Push switch (SW1) into

the off position to turn off airflow

detection system.

Fig.7. Speed Selection

9l/s = Remove Jumper Connector

6l/s = Replace Jumper Connector (factory set)

(For 15l/s, permanently link terminal

connections L to LS)

Flow rate conversion:

6l/s = 22m3/h

9l/s = 32m3/h

Fig.5. Accessing the control settings

Fig.6. Removing the front grille panel for cleaning.

SW1 Dip

switch

On Off (factory set)

IMPORTANT:

DO NOT

CHANGE DIP

SWITCH 2.

LEAVE IN OFF

POSITION

JP1

JUMPER

PRODUCT FICHE

For Residential Ventilation Units (Complying Commission Delegated Regulation (EU)

No 1254/2014

Name: Vent‐Axia

ModelID(StockRef.):Lo‐CarbonCentra

dMEV‐441782

SECClassC

SECValue('Average')26.23

SECValue('Warm')11.86

SECValue('Cold')51.31

LabelRequired?(Yes/No=Outofscope)No

Declaredas:RVUorNRVU/UVUorBVURVU‐UVU

SpeedDrive2‐Speed

TypeHRS(Recuperative,Regenerative,None)None

ThermalEff:[(%),NA(ifnone)]N/A

Max.FlowRate(m3/h)54.00

Max.PowerInput(W):(@Max.FlowRate)2.40

LWA:SoundPowerLevel(dB)33.02

Ref.FlowRate(m3/s)0.01

Ref.PressureDiff.(Pa)N/A

SPI[W/(m3/h)]0.06

ControlFactor&ControlTypology:(CTRL/Typology)

ControlFactor;CTRL0.65

ControlTypologyLocalDemand

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

MixingRateofNon‐DuctedBVUsnotintendedtobeequipped

withoneductconnectiononeithersupplyorextractairside;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

ForUVUs(InstructionsInstallRegulatedSupply/ExtractGrilles

Façade)InF&W

InternetAddress(forDisassemblyInstructions)www.vent‐axia.com

Sensitivityp.Variation@+20/‐20Pa:(forNon‐DuctedVus)N/A

AirTightness‐ID/OD‐(m3/h)(forNon‐DuctedVus)N/A

AnnualElectricityConsumption:AEC(kWh/a)0.52

AnnualHeatingSaved:AHS(kWh/a)

AHS:Average26.23

AHS:Warm11.86

AHS:Cold51.31



Head Office: Fleming Way, Crawley, West Sussex, RH10 9YX.

UK NATIONAL CALL CENTRE, Newton Road, Crawley, West Sussex, RH10 9JA

SALES ENQUIRIES: Tel: 0844 8560590 Fax: 01293 565169

TECHNICAL SUPPORT: Tel: 0844 8560594 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

449430 B 1116

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

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