Vent-Axia 7 125 Lo Carbon Response Instruction Manual

Vent-Axia 7 125 Lo Carbon Response

Product Specifications:

• Model Numbers: 494143, 496738, 494144, 496689, 494150, 494149
• Product Name: Lo-Carbon Response Continuous Extract Fan
• Power Supply: 220-240V~50Hz
• IP Rating: IPX5 (for most models), IPX7 (SELV models)

Product Usage Instructions

Installation:

1. Siting the Transformer (SELV Models only): The transformer must not be installed in a shower cubicle.
2. Panel/Ceiling/Interior Wall Mounting:
   • Cut a 107mm diameter hole (100mm fans) or a 130mm hole (125mm fans).
   • Remove the front panel and inner grille.
   • Mark and drill screw centers, then attach the fan to the wall.
   • Wire the fan as described in Section B-Wiring.
   • Adjust settings if needed (refer to Section C-Setup).
   • Ensure impeller rotates freely after installation.
   • Replace the inner grille and front panel.
3. Exterior Wall Mounting:
   • Cut a 117mm diameter hole (100mm fans) or a 140mm hole (125mm fans) through the wall.
   • Insert the wall sleeve and fix exterior grille into position.
   • Follow steps 3 to 8 under Panel/Ceiling/Interior Wall Mounting.
4. Window Mounting (100mm Only): Refer to the instructions provided with the kit for window mounting.

Frequently Asked Questions:

• Q: Can the fan be installed in Zone 1 or Zone 2?
  A: Yes, the fan is suitable for installation within Zones 1 & 2. Please refer to safety and guidance notes for more information.

• Q: What is the power supply requirement for this fan?
  A: The fan operates on a power supply of 220-240V~50Hz.

Lo-Carbon Response

CONTINUOUS EXTRACT FAN Installation and Wiring Instructions

Stock Ref. N°

• 494143
• Lo-Carbon Response 7 HTP 496738
• Lo-Carbon Response 7 125 HTP
• 494144
• Lo-Carbon Response 7 Pro HTP 496689
• Lo-Carbon Response 7 Pro 125 HTP
• 494150
• Lo-Carbon Response 7 SELV HTP 494149
• Lo-Carbon Response
• 7 Pro SELV HTP

220-240V~50Hz

PLEASE READ INSTRUCTIONS   IN CONJUNCTION WITH  ILLUSTRATIONS.
PLEASE SAVE THESE INSTRUCTIONS. IPX5
IPX7 (SELV)

Installation and Wiring Instructions for the Lo-Carbon Response 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

• 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.
• The Fan is suitable for installation within Zones 1 & 2.
• The Fan should be provided with a local isolator switch capable of disconnecting all poles, having a contact separation of at least 3mm.
• Ensure that the mains supply (Voltage, Frequency, and Phase) complies with the rating label.
• The Fan should only be used in conjunction with the appropriate Vent-Axia products.
• The fan should only be used in conjunction with fixed wiring.
• 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.
• The Fan should not be used where it is liable to be subject to direct water spray for prolonged periods of time.
• 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.
• 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.
• Young children should be supervised to ensure that they do not play with the appliance.

DESCRIPTION
The Response 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 (model dependant).
The incorporated LED display allows the installer to configure the fan to suit its installation. The display is also used to show the day logger and power run meter.
The fan can be wall, window (100mm only) or panel/ceiling mounted.

ACCESSORIES (not supplied)

• WALL FITTING KIT – A range of white (stock ref. 254102), brown (stock ref. 254100) 100mm wall kits & White (Stock ref. 455226) 125mm wall kits are available for installing into most walls using telescopic liners supplied.
• WINDOW KIT stock ref. 407927 (100mm only)
• CEILING KIT stock ref. 407928 (100mm only)
• 150mm CONVERSION KIT stock ref. 408680 (100mm only)
• Decoration Frame stock ref. 474041 (100mm only)

INSTALLATION

SITING THE TRANSFORMER (SELV Models only)

1.  The transformer 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 ºC to 40ºC. Do not site in an area containing excessive levels of grease.
3.  Decide where to site the transformer and fan and work out the required cable runs.

PANEL/CEILING/ INTERIOR WALL MOUNTING

1.  Cut a 107mm diameter hole (100mm fans) or a 130mm hole for (125mm fans).
2.  Remove the front panel by carefully pulling it away from the fan. Loosen the two self-retaining screws and remove the inner grille by carefully pulling it away from the housing.
3.  Using the built  in spirit level bubble as an aid. Mark the screw  centres  through the holes in the fan back plate. Drill, plug and screw into position. Attach ducting as required for the installation.
4. Wire the fan as described in Section B-Wiring. Adjust any settings as required (see Section C-Setup).
5.  After installation, ensure impeller rotates freely.
6.  Replace the inner grille and tighten the retaining screws.
7.  Replace the front panel.

EXTERIOR WALL MOUNTING

1.  For wall mounting cut a 117mm diameter hole (100mm fans) or a 140mm hole (125mm fans) through the wall and insert the wall sleeve. Slope the sleeve slightly downwards away from the fan. Where necessary cut to length and cement both ends into position flush with the wall faces.
2.  Fix  exterior grille into position with the  louvres positioned downwards.
3.  Remove the front panel by carefully pulling it away from the fan. Loosen the two self-retaining screws and remove the inner grille by carefully pulling it away from the housing.
4.  Using the built in spirit level bubble as an aid. Mark the screw centres through the holes in the fan back plate. Drill, plug and screw into position.
5.  Wire the fan as described in Section B-Wiring. Adjust any settings as required (see Section C-Setup).
6. After installation, ensure impeller rotates freely.
7.  Replace the inner grille and tighten the retaining screws.
8.  Replace the  front  Panel.

WINDOW MOUNTING (100MM ONLY)
For window mounting refer to the instructions provided with the kit.

WIRING.

WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE ISOLATED FROM THE POWER SUPPLY DURING INSTALLATION OR MAINTENANCE.

IMPORTANT

• The cross – sectional area of supply cord used  should be ranged from 0.75 -1.5mm2.
• Cable entry can be made from the rear or on 100mm models also the side of the fan using the grommet provided.
• The extraction fan or transformer (SELV models) is suitable for connection to 220-240V 50Hz supply.
• The Transformer (SELV models only) 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.
• 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, 3, or 4, 5, 6)
2.  Check all connections have been made correctly and ensure all terminal connections and supply wires are securely fastened.(Fig. 7)
3.  Ensure the impeller rotates and is free from obstructions.

SETUP

Accessing the commissioning menu
To configure the fan first remove the grille. With the grille removed the control buttons are visible (Fig.7). Do NOT isolate the fan from the power supply as configuration requires power to the fan.
IMPORTANT
Do NOT attempt to remove the circuit board cover (Fig.7). This covers the high voltage power supply, preventing the risk of an electric shock.

Display modes
When first powered on, the display will run through an initialisation sequence and then activate prism mode (cover on).
When a button is pressed, the display will go into the menu system and display as viewed without the prism.
The display will return to prism mode after 60 seconds of inactivity (i.e. no button presses).
When activating the menu, the initial button push will not change any settings.
Prism mode may also be re-activated by holding the pull-cord for 5 seconds (if applicable).

Prism Mode
When the controller is in ‘prism mode’ the display will be mirrored such that the characters are shown correctly when viewed through the prism fitted in the fan cover.
When activated, prism mode will run for 15 minutes, first showing the day logger then cycling between displaying:

• Airflow rate (Pro models only, other models display speed setting)
• Estimated duct pressure (Pro models only if CV / F-2 mode enabled)
• Current RH% (HT models only)

Calibration process will run after the first 15 minutes (if CV / F-2 mode enabled); see Advanced settings for further details.

Menu
If the buttons are pressed the display goes from prism mode to direct view mode and menu activated. If the buttons are not pressed for 30 seconds the display reverts to prism mode.
The (Up) button is used to increase the value of a setting, the  (Down) button is used to reduce the value of a setting and the (Mode/Set) button is used to advance to the next menu item.

The fan has the following ‘menu’ modes:

• Standard (press any button from normal runtime –
• Advanced/Engineer (hold +   for 5 seconds from the standard menu)
• Data-logger readout (hold for 5 seconds from standard menu)

Standard settings

15
****| Humidity level

trigger

| h40 to h90 – 40% to 90% relative humidity| 70% RH
| Fan Control Mode| F-0 = CV disabled, wall / window installation| F-1 = CV disabled, ducted installation| F-2 = CV Constant Volume enabled| F-0
| Comfort mode| c-n = normal LS overrun| c-Y = comfort mode| c-n
| ****

Enable / disable lock code

| loc – lock code enabled| unl – lock code disabled (unlocked)| unl
|

Menu lock code

| Up / down selects current digit, X moves to next digit.| 10c
****| To change the lock code when “cod” is displayed select the

up/down buttons to select a digit then select X to move on to the next digit.

*If “0” is selected, the fan switches to Intermittent mode. Advanced settings:

Response

| A-Y Ambient Response

enabled

| A-n Ambient Response disabled| Enabled
****| RH Rapid

Response enable

| p-Y = Rapid Response enabled| p-n = Rapid Response disabled| Y

Settings
Speed selection
Set trickle and boost speeds in l/s by using the  and  buttons.
To convert m3/h to l/s, divide the m3/h by 3.6 (e.g. 54m3/h / 3.6 = 15 l/s).
The Trickle Speed cannot be higher than the Boost selection. Therefore it might be necessary to modify the Boost selection before increasing the Trickle setting.
If “0” is selected for the trickle speed, the fan will be off until a boost signal is activated (for example via LS/ pullcord/humidity).

Boost time
The boost setting allows the boost timer to be adjusted from 1-30 minutes, the default is 15 minutes. This option may also be disabled, thus removing the option from the menu and setting the overrun to 0.
Inbuilt Ambient Response Humidistat with Rapid Rise Detection The humidity threshold setting defines at what relative humidity the fan will trigger, adjustable from 40% to 90% rH. The fan increases in speed slowly between the trickle and boost speeds between the trigger %rH and +10%. The trigger point will automatically adjust if the temperature drops below 18C to prevent nuisance triggering.
The fan also incorporates a rapid rise function to detect rapid rises in humidity when the ambient %rH is under the threshold setting. If a rapid rise is detected the fan will increase in speed proportionally between the trickle and boost settings until the humidity lowers again.

Comfort mode

• With comfort mode disabled, the fan will go into boost as soon as an LS (Light Switch) input is detected and over-run for the set period after LS is disconnected.
• With comfort mode enabled, the fan will remain off / in trickle up to a maximum of 20 minutes. Once LS is deactivated, fan will run at boost mode for the length of time LS was present up to a maximum of 20 minutes plus the set over-run time. If the LS was activated for < 3 minutes, no boost will occur to prevent nuisance activations.

Fan Control Mode
There are 3 modes for fan speed control. Wall, ducted and constant airflow/ volume (CV) mode (CV – Pro models only). In wall or ducted mode, the fan speeds are pre-determined at the factory and does not use the airflow sensor.
In CV mode (Constant Airflow/Volume), the fan will automatically adjust the fan speed to maintain the desired airflow. After the first 15 minutes of operation the fan enters calibration mode to determine the most efficient mode of operation.

Calibration Reset
In some circumstances it may be necessary to reset the calibration settings (if the fan was covered to prevent dust/damage/or poor weather outside).
Reset the calibration by configuring the fan for wall or duct mode (F-0 or F-1), turn the product off and on and re-configure back to CV mode (F-2). The fan will calibrate after 15 minutes or by holding the pullcord for 5 seconds.

Pullcord

• Switches the fan from trickle to boost (for boost overrun time)
  • If the overrun time has been set to 0 (disabled), a default overrun duration of 5 minutes will take place.
• This will override LS comfort mode, boosting the fan immediately
• An activation when a Pullcord/LS (Light Switch) boost is already active shall cancel overrun timer (RH boost sources remain unaffected)

Data Logger Menu

• When the display is rotated the decimal point will no longer display; eg. 055 represents 5.5KWh

Cutting the power to the fan will not erase the stored data. To reset the data, hold pullcord for 14 seconds while in the data logger menu.

Data Examples

←Text scrolling from right to left
In this example the display is showing a total run time of 1 year and 237 days .

←Text scrolling from right to left
In this example the display is showing 34Wh of energy consumption in the previous 24h. Returning to commissioning mode
A further 5 second press of the Mode button will return the fan to the commissioning menu.

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.This energy consumption comparison is a guide to help understand the difference between running the Vent-Axia Response versus other every day electrical items. Running costs will vary depending on use. The energy price shown in this comparison sheet is based on the October 2022 energy price cap. This price will vary depending on region and energy supplier.

Disposal
This product should not be disposed of with household waste. Please recycle where facilities exist. Check with your local authority for recycling advice.

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 this product for 7 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 affect your legal rights

Head Office: Fleming Way, Crawley, West Sussex, RH10 9YX.
UK NATIONAL CALL CENTRE, Newton Road, Crawley, West Sussex, RH10 9JA
SALES ENQUIRIES: Tel: 0344 856 0590 Fax: 01293 565169
TECHNICAL SUPPORT: Tel: 0344 856 0594 Fax: 01293 532814
For details of the warranty and returns procedure please refer to www.vent- axia.com or write to Vent-Axia Group, Fleming Way, Crawley, RH10 9YX EU Authorised Representative: Vent-Axia Sigarenmaker 5 – 5521DJ Eersel Nederland authorisedrep@vent-axia.nl

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