Vent-Axia VA100/SELV Assembly instructions

100mm AXIAL EXTRACT FAN

Installation and Wiring Instructions

Stock Ref. N°

16 14A - LP

45 90 49

A - XP

16 15A - LT

45 90 50

A - XT

44 16 16

A - LHTP

43 60 64

A - XHTP

PLEASE READ INSTRUCTIONS IN CONJUNCTION WITH

ILLUSTRATIONS. PLEASE SAVE THESE INSTRUCTIONS.

VA100

-Carbon SELV

RANGE

IPX7

FAN UNITS 12V DC SELV (CLASS III)

CONTROLLERS 220

-240V 50Hz MAINS SUPPLY (CLASS II)

WITH 12V DC

SELV OUTPUT

Installation and Wiring Instructions for the VA100 Lo-Carbon SELV 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. Children should be supervised to ensure that they do not play with the appliance.

K. Stationary appliances not fitted with means for disconnection from the supply

mains having a contact separation in all poles that provide full disconnection

under over voltage category III, the instructions state that means for

disconnection must be incorporated in the fixed wiring in accordance with the

wiring rules.

IMPORTANT:- THESE FANS ARE SPECIALLY DESIGNED TO WORK ON 12V DC

AND ARE NOT COMPATIBLE WITH OTHER CONTROLLERS. DO NOT CONNECT

MORE THAN ONE FAN TO THE CONTROLLER.

DESCRIPTION

The VA100 Lo-Carbon SELV fan is an axial extraction fan suitable for domestic

bathrooms and WC’s and is with shutter timer and humidity combinations. The fan

can be wall, panel/ceiling or window mounted using the appropriate ducting/grille

kit (see Accessories section below).

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

transmission into plasterboard/panels for quiet operation compared with other DC

motor based fans.

ACCESSORIES (not supplied) Please see www.vent-axia.com for more

information.

WALL FITTING KIT

A range of 100mm wall kits are available for installing into most walls using

telescopic liners supplied. White stock ref.: 254102, Brown stock ref: 254100.

WINDOW FITTING KIT

Two window kits are available, for existing 105-110mm diameter holes use stock

ref. 254101A. For 110-140mm holes use stock ref. 443234.

A. INSTALLATION

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 section siting the fan), and

work out the required cable runs.

PANEL/CEILING MOUNTING

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

system of at least 1.2m long (max 3m) 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 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 and the shutters can open.

WALL MOUNTING (WALL KIT SUPPLIED SEPARATELY – SEE ACCESSORIES ON PREVIOUS PAGE)

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. 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)

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

required (see Section C-Setup).

4. Replace the grille and tighten the retaining screw.

5. After installation, ensure impeller rotates freely and the shutters can open.

WINDOW MOUNTING (WINDOW KIT SUPPLIED SEPARATELY – SEE ACCESSORIES ABOVE)

The following instructions are for 105-110mm holes only – using the

254101A window mounting kit. For 110-140mm holes please use

443234 window kit and refer to the supplied instructions.

1. Cut a 105mm diameter hole in the glass.

2. Fit spacers as required behind the fan back plate, engaging the locating pips

in the corner holes.

3. Place the fan spigot through the hole in the glass from the inside, with a

gasket on each side of the glass.

4. From the outside, place on the remaining spacer, with the locating pips

facing outwards. For double-glazing and materials up to 40mm thick, one or

more spacers may be discarded.

5. Draw the assembly together with the threaded fixing ring. Do not over-

tighten.

6. Fix the exterior grille in position, using the screws provided, with the louvres

pointing downwards.

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 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.

There are two methods of cable entry to the fan. If the side cable entry option is

used, ensure the supplied grommet is used and maintains a good seal to prevent

water ingress.

The fan must be powered at all times to allow the shutter to work correctly. If there

is a requirement to switch the fan via an external switch, this should be connected

to the LS connection and not by switching L/N supply.

1. Select and follow the appropriate wiring diagram. (Fig. 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.

4. DO NOT TEST THE FAN WITHOUT THE GRILLE SECURELY FASTENED.

THIS COULD POTENTIALLY CAUSE DAMAGE TO THE SHUTTER

MECHANISM.

C. SETUP

WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT

MUST BE ISOLATED FROM THE POWER SUPPLY DURING THE

INSTALLATION / OR MAINTENANCE.

SPEED SETTING (Fig. 4):

The fan has two speed settings for different installation requirements:

1) High speed – for ducted installations: Replace jumper.

2) Normal speed – for wall/window installations: Remove jumper.

TIMER ADJUSTMENT (LT/XT/LHTP/XHTP MODELS)

BEFORE ADJUSTING THE TIMER, SWITCH OFF THE MAINS SUPPLY. TIMER

SHOULD ONLY BE ADJUSTED BEFORE OR DURING INSTALLATION.

1. Remove the fan grille. The controller is factory set at 15 minutes

approx. The overrun time period can be adjusted from approximately

3-30 minutes by altering the adjuster on the control PCB.

2. To REDUCE the operating time, use a small screwdriver to turn the

adjuster Fig.4. ANTI-CLOCKWISE.

3. To INCREASE the operating time, use a small screwdriver to turn the

adjuster Fig.4. CLOCKWISE.

4. Replace the fan grille.

HUMIDITY SET-POINT ADJUSTMENT (LHTP/XHTP MODELS ONLY)

BEFORE ADJUSTING THE CONTROLLER, SWITCH OFF THE MAINS SUPPLY.

HUMIDISTAT SHOULD ONLY BE ADJUSTED BEFORE OR DURING

INSTALLATION.

1. Remove the fan grille. The controller is factory set to switch on at

about 70% RH. The humidity set point can be adjusted from 65-

95%RH by altering the adjuster on the control PCB.

2. To LOWER the set-point use a small screwdriver to turn the adjuster

Fig.4. ANTI-CLOCKWISE. This makes the controller MORE sensitive.

3. To RAISE the set-point use a small screwdriver to turn the adjuster

Fig.4. CLOCKWISE. This makes the controller LESS sensitive.

4. Replace the fan grille.

IMPORTANT: Upon installation it is possible that the humidity controller will make

the fan run continuously until it has acclimatised to the environment. As part of the

installation process it is important to set/adjust the humidity sensitivity to the

desired position. The controller is already factory set to switch on at about 70%

R.H. If the room has not had a fan correctly working for sometime, the fan may run

continuously for 2 or more weeks until the humidity drops below 70%RH.

PULLCORD OPERATION (LP/XP, LHTP/XHTP)

The PULLCORD will activate the fan when switched. For the HTP models, the fan

will return to the auto humidity sensing mode once the pullcord is switched into the

off position. The LED indicator light will only activate if the PULLCORD is in the

ON position.

LED INDICATOR LIGHT OPERATION

The Neon will activate whenever the LS or PULLCORD is activated. The LED

indicator light will switch off if the fan is running in Timer overrun or Humidity mode

(if applicable).

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

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

Fig.3 Models: LT/XT, LHTP/XHTP

Fig.2 Models: LP/XP (LHTP/XHTP – if the Timer is not used)

Fig.1.





1 Phase Supply

(220-240V 50Hz). FUSE

Switched

Fused Spur

(3A)

12V

Controller

Fan

12V D.C

SELV Supply

~ N

LS12V

Controller

Fan

12V D.C

SELV Supply

Fig.4.

Humidistat set point adjustment (65-95%RH)

Overrun timer adjustment (1-30min)

SPEED SETTING:

The fan has two speed settings for different

installation requirements:

•High speed – for ducted installations:

Replace jumper.

•Normal speed – for wall/window

installations: Remove jumper.

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

VA100 SELV

LP - 441614

Lo-Carbon

VA100 SELV

XP - 459049

Lo-Carbon

VA100 SELV

LT - 441615

Lo-Carbon

VA100 SELV

LHTP -

441616

Lo-Carbon

VA100 SELV

XT 459050

Lo-Carbon

VA100 SELV

XHTP -

436064

SEC Class F F E C E C

SEC Value ('Average') -10.00 13.97 15.72 26.23 15.72 26.23

SEC Value ('Warm')

-2.34

6.32

7.11

11.86

7.11

11.86

SEC Value ('Cold')

-23.35

27.32

30.75

51.31

30.75

51.31

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

Declared as: RVU or NRVU/UVU or BVU

RVU-UVU

Speed Drive

2-Speed

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

Thermal Eff: [ (%), NA(if none)]

N/A

Max. Flow Rate (m3/h)

75.60

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

6.10

LWA: Sound Power Level (dB)

53.52

Ref. Flow Rate (m3/s)

0.01

Ref. Pressure Diff. (Pa)

N/A

SPI [W/(m3/h)] 0.12 0.12 0.12 0.12 0.12 0.12

Control Factor & Control Typology: (CTRL/

Typology)

Control Factor; CTRL

1.00

0.95

0.65

0.95

0.65

Control Typology

Manual

Control

Manual

Control

Clock Control

Local Demand

Control

Clock Control

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 N/A N/A N/A 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 N/A N/A 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 N/A N/A N/A N/A

For UVUs (Instructions Install Regulated

Supply/Extract Grilles Façade) In F&W In F&W In F&W In F&W In F&W In F&W

Internet Address (for Disassembly

Instructions)

www.vent-

axia.com

www.vent-

axia.com

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 N/A N/A

Air Tightness-ID/OD-(m3/h) (for Non-Ducted

Vus)

N/A N/A N/A N/A N/A N/A

Annual Electricity Consumption: AEC (kWh/a)

1.59

1.49

0.95

1.49

0.95

Annual Heating Saved: AHS (kWh/a)

AHS: Average 13.97 13.97 15.72 26.23 15.72 26.23

AHS: Warm

6.32

7.11

11.86

7.11

11.86

AHS: Cold

27.32

30.75

51.31

30.75

51.31

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