Vent-Axia MVDC-MS, 437634C, MVDC-MSH, 443298B, MVDC-MSH UniFlex Installation Instructions

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Page 1

220

240V~50Hz

Carbon

MVDC & SENTINEL MULTIVENT RANGE

VENTILATION SYSTEMS

Installation and Wiring Instructions

ORIGINAL ENGLISH MANUAL. DOWNLOAD THE APP HERE:

PLEASE KEEP THIS MANUAL AND READ IN CONJUNCTION WITH THE ILLUSTRATIONS.

Stock Ref. N°

MVDC-MS 437634C MVDC-MSH 443298B MVDC-MSH UniFlex 498502

SMV-H 445655B SMV-HX 495360 SMV-HX CO² 495361

SMV PLUS-H 407849A SMV PLUS-HX 495362 SMV PLUS-HX CO² 495363

SMV PLUS-H 496186 (Ventair)

X-Units have wireless controls and Bluetooth capability.

IPX2

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Installation and Wiring Instructions for the Multivent Multi-Speed Extract 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.



Subject to direct water spray from hoses.



All wiring must be in accordance with the current IEE wiring regulations BS7671, or appropriate standards

of your country. Installation should be inspected and tested by a suitably qualified person after completion.



Ensure the mains supply (voltage, frequency and phase) complies with the rating label.



The unit should be provided with a local double pole fused spur fitted with a 3A fuse having a contact

separation of at least 3mm.



Units showing on the rating label incorporate an earth connection for functional purposes only.



Units showing on the rating label have a Protective Earth.



Precautions must be taken to avoid the backflow of gases into the building from the open flue of gas or

other fuel-burning appliances.



Ambient temperatures higher than 40°C

and lower than -20°C.



Possible obstructions that may hinder

access to or removal of the unit.



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.



Cleaning and user maintenance shall not be made by children



The installer is responsible for the installation and electrical connection of the unit on site. It is the

responsibility of the installer to ensure that the equipment is safely and securely installed and left only when mechanically and electrically safe.



All regulations and requirements must be strictly followed to prevent hazards to life and property, both

during and after installation, and during any subsequent servicing and maintenance.



Certain applications may require the installation of sound attenuation to achieve the sound levels required.



The unit must not be connected directly to a tumble drier.



The exhaust grille should be located in accordance with building regulation and be at least 300mm away

from any flue outlet.



This product and associated duct installation should be carried out in accordance with the Domestic

Ventilation Compliance Guide.

Models that support Radio and Bluetooth communication the below applies



Bluetooth variants contain FCC ID: S9NSPBTLERF



Bluetooth LE: -12dBm EIRP (63μW), nominal 2450MHz.



Bluetooth v4.1 compliant



Bluetooth and radio variants obtained RED certificate: No. 0051-RED-0011 REV. 0



Zirconia Wireless: -14dBm EIRP nominal 868MHz.



The manufacturer hereby assure that this type of Bluetooth radio and 868MHz radio

equipment complies with RED Directive 2014/53 / EU

The full text of the EU Declaration of Conformity can be found at the following URL:

https://www.vent-axia.com/range/centralised-mechanical-extract-ventilation-mev

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INTRODUCTORY NOTES

The MVDC & Sentinel Multivent units are designed for simultaneous extract ventilation of multiple wet rooms such as bathrooms, kitchens and toilets. The units use a highly efficient backward curved centrifugal motor impeller set and are designed for continuous 24-hour use.

Depending on the model, they feature either 3 or4 settable speeds and can be configured to change speed based on a wide range of sensor or control inputs as depicted below

Model MVDC-MS MVDC-MS H

Speeds 3 3 4 4 4 4 4 4

Max airflow m3/hr (0Pa)

Switched Live Input (LS)

RS485 Connectivity

Analogue Input 0-10V

Digital Input Yes Yes Yes Yes Yes Yes Yes Yes

Humidity Sensor No Yes Yes Yes Yes Yes Yes Yes

430 430 463 463 463 573 573 573

Yes Yes Yes Yes Yes Yes Yes Yes

No No Yes Yes Yes Yes Yes Yes

Yes Yes Yes Yes Yes Yes Yes Yes

SMV H

SMV HX

SMV HX Co2

SMV Plus H SMV Plus

SMV Plus HX Co2

CO2 Sensor No No No No Yes No No Yes

Wireless Receiver No No No Yes Yes No Yes Yes

The units can be precisely programmed to determine how they respond to changes in sensor values or the status of the various signal inputs. The units will run at a normal flowrate until a sensor or input change causes it to change speed. In the case of the Switched Live and Digital inputs the units will perform a step change in speed to the appropriate new level. In the case of the Analogue inputs, Humidity Sensor and CO2 sensor the unit can be programmed to give a proportional response to the change in conditions.

INSTALLATION

Position the unit, taking into consideration the position of the rooms to be ventilated, the exhaust position and the electrical services. Ensure there is adequate access for installation and maintenance.

If the unit is sited in the heated void of the dwelling a condensate drain should not be necessary. When sited in a cold void, consideration should be given to fitment of a condensate drain. Alternatively, the unit and ducting can be externally insulated to minimize condensation within the units housing.

To reduce the system resistance in your duct system, and therefore lower the speed, power consumption and noise of the fan, follow these guidelines:

1.1. Keep the length of duct runs to a minimum, particularly the exhaust duct run.

1.2. If you need to use flexible ducting, make sure that it is fully extended and not crushed, sagging or torn.

1.3. Try to minimize the use of diffusers/valves by having similar length duct runs to the inlets.

1.4. The bend radius (measured to the inside of the bend) should be at least 1x the duct diameter.

1.5. Avoid having any bends, filters or other obstructions within 250mm of the fan inlets and outlet.

1.6. Set the valves to their maximally opened positions for a minimal pressure drop.

Securely mount the unit through the mounting holes on the casing using appropriate fixings for the mounting substrate. It is recommended that anti-vibration mounts, acoustic mat or rubber bushes are used.

Fixings (not supplied) to be capable of securing 4 x the weight of the unit. Unit weight: 4.1kg

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To maintain the IPx2 rating of the unit, the unit must NOT be mounted with the cover removal slots facing upwards, or at an angle where they are visible from above. All other orientations are acceptable.

See the dimensional details below for the mounting hole positions.

-Spigot diameters are 125mm

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i. Base mounted Installation with ducting radiating out horizontally.

ii. Vertically mounted Installation with the exhaust spigot at top. The electrical connections must

come out of the bottom of the unit in order to maintain the water ingress protection.

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iii. Ceiling mounted Installation with ducting radiating out horizontally.

WIRING

WARNING: THE UNIT AND ANCILLARY CONTROL EQUIPMENT MUST BE ISOLATED FROM THE POWER SUPPLY DURING THE INSTALLATION / OR MAINTENANCE. THIS UNIT MUST BE EARTHED.

1. To remove the cover, use a coin or similar; depress the retaining tabs via the slots in the side of the unit.

2. With the power off, connect a suitable mains power cable from a switched, fused spur to the screw terminal block. Use the cable clamps and clip provided to secure the lead.

3. Two mains voltage Live Switched (LS1 and LS2) connections are provided and can be used to trigger a change in speed. Common inputs would be from a bathroom lighting circuit. When commissioning the unit, a delay on timer and an overrun timer can be selected and adjusted in the software using the buttons and screen. See Commissioning section on page 9 of this document for details.

4. The switched live output (230Vac) from any other switch or controller, (such as a simple latching pull cord or push button switch, humidistat or PIR detector) can be connected to the LS terminal instead of connecting to a lighting circuit.

5. Important: Use 4-core, low voltage, twisted pair, telecoms type cable for accessories (Vent-Axia part number 459931). Accessories are connected via the IO (Input Output) PCB; see the Low Voltage Connections diagram. Use the cable clamp and grommet provided.

6. There are no delay-on or overrun timers with the volt-free connection as the controller should determine when the fan is running at Boost or Normal speeds. Use the LS connection described above if you want a timer.

Units showing on the rating label incorporate an earth connection for functional purposes only.

Units showing on the rating label have a Protective Earth.

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Connection

Description

1 L Live (220

240Vac)

2 N

Neutral

4 LS1

Live Switched 1, (220

240Vac), isolated

LS2

Live Switched 2 (220

240Vac), isolated

7 N

+ NS

Link Wire

A P

E L

CONNECTION DIAGRAM

Main power connections

A: Main power connections

The LS1, LS2 and NS terminals are electrically isolated. Note: Neutral link between 2 & 6 should be removed if different RCD protection circuits are used for mains power a & Live Switch connections. Note: Ensure all live & neutral are isolated before servicing.

Low voltage connections, if fitted



Units showing on the rating label incorporate an earth connection for functional purposes only.



Units showing on the rating label have a Protective Earth.

Functional Earth

Protective Earth

1 2 3

NS Neutral Switched, isolated

B: Low voltage connections

For best performance use 4-core, low voltage, twisted pair, telecoms type cable for accessories. (Available from Vent-Axia part number 459931).

ON OFF

6 5 4

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Position

Label

Description

Action

a power supply

A B A+ Data C B- Data D GND Ground E

F + Digital input 2

H + Digital input 1

J + Digital output 2 K L + Digital output 1

N GND Ground O P GND Ground

RS485

D IN 2

D IN 1

D OUT 2

D OUT 1

AN 2

AN 1

5V 5V Output, Max 250mA

COM Digital input common

COM Digital output common

+ Analog input 2

+ Analog input 1

RS485 communication to wired accessories.

Data connection (B, C) if available. The 5V and Ground connections are available on all units.

Go to Boost speed (Min.1V, max. 6V).

The 5V output from the RS485 connection can be used as

Go to Low speed (Min.1V, max. 6V).

The 5V output from the RS485 connection can be used as

Unpowered Boost indicator Switch

(Switching 6V 50mA max)

Unpowered LED fault indicator switch

(Switching 6V 50mA max)

0-10V analogue input. Two user settable voltage thresholds with two user settable actions. The unit will run at Normal when supplied voltage is between the two thresholds.

RS485 Wired inputs

The RS485 terminals are used to connect compatible sensors and switches. The connection allows sensors be daisy chained to simplify wiring. The maximum length of cable run from the unit is limited to 250m. Once accessories are wired to the unit, they must be paired to the unit to function correctly.

RS485 Wired input connection diagram

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RF868 Wireless inputs Units that contain a Wireless receiver can be paired with compatible sensors, these can be mains or battery powered depending on the sensor.

A maximum of 15 wired and wireless sensors can be connected to a single unit.

Pairing sensors

To pair the unit with a wired or wireless sensor:

- Press the Mode button to turn on the display.

- Press and hold the Mode button until the LED illuminates solid White

- Release the mode button, the LED will flash White to indicate that it is in pairing mode.

The unit will remain in pairing mode for 1 hour, or until the mode button is pressed again.

- Activate the pairing function on the sensor to be paired (see the instructions that came with the sensor).

- When a sensor is paired the total number of paired devices is displayed on the unit.

Removing sensors

To remove paired sensors, the unit must be reset. Caution, this will reset all values back to factory default.

- Press the Mode button to turn on the display.

- Press and hold the Mode button until the LED illuminates solid Red

- Release the mode button, the LED will stay Red.

- Pressing the Mode button again will confirm the reset command. If a reset is not wanted, leave the unit until the command times out and the LED turns off.

C: Sensor priorities

The unit set the motor speed based on the source in the following order:

 User override  LS inputs (1 and 2)  Digital inputs (1 and 2)  Sensor override: The Sensor override action is decided based upon the Sensor input (Humidity Sensor, Co2

sensor, Analog inputs) whichever sets the motor to run in Highest speed.

 Default speed (run in normal speed)

Note: At each priority state, if more than one inputs are active (e.g. Digital input 1 and 2 are active), then motor will always run at a speed from the input which has highest speed level.

Example - LED Fault Indicator Connection Example - LED Boost Indicator Connection

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Low Voltage Switch’s – Boost & Low Speed

FEATURE DESCRIPTIONS

If compatible, the unit can be controlled via the Bluetooth linked App. This is only available on Multihome Wireless units.

Comfort mode

If Comfort mode is enabled the unit will behave as follows to all LS inputs:

Trigger Action

LS input active less than 5 minutes No action (continue to run at Normal speed)

Once LS input is removed, fan will run at user LS input active more than 5 minutes but less than 20 minutes

LS input active more the 20 minutes

The above applies to all LS inputs. The times are not adjustable by the user.

Delay On

A delay can be set so that the unit will not respond to an input until after the set delay has elapsed, applies to LS inputs only.

Overrun Timer

The unit can be set to run for a defined period after the input is removed, applies to LS inputs only.

Humidity – Rapid rise*

Rapid Rise humidity response functions to detect rapid rises in humidity when the ambient %RH is under the threshold setting. If a rapid rise is detected the fan will boost until the humidity lowers again.

Humidity – Ambient response*

When ambient response is enabled the threshold set point is modified based on the ambient temperature. This helps to prevent nuisance boosting of the unit as temperatures changes during the day.

Humidity – Threshold*

The unit will boost when the RH is above the threshold set point.

selected speed for the length of time LS was

present plus the set over-run time (if over run is

enabled).

Unit will Boost after 20mins.

Once LS input is removed, fan will run at user

selected speed for 20 minutes plus the set over-

run time (if over run is enabled).

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CO2 threshold Boost / Purge*

The unit will go to Boost / Purge when the detected CO2 level exceeds the set thresholds.

Analogue inputs

Both analogue inputs have adjustable low and high trigger voltages within the 0-10V range. The response to being above or below either of the threshold voltages is user settable. Note: The display doesn’t show a decimal point, for example at threshold voltage of 5.2V, is displayed as “52” on the unit.

Digital Inputs

The unit can be set to change speed (selectable), based on whether the digital inputs are above or below the threshold voltage. See the table of Low Voltage Connections for details.

Display Lock

To protect the settings on the MEV unit a pin code can be enabled via the main menu. Once the lock function has been enabled the Pin code can be set. The 3-digit pin is A to F, 0 to 9, and the default is LoC.

* If external RH or CO2 sensors are fitted via RS485, they will have priority over the internal sensors, their value will also be displayed on the unit in preference to the internal sensor.

UNIT ADJUSTMENT

1. Commissioning and configuration on all products is supported by the 3 digit user interface and associated push buttons.

2. When powered on, the unit will display the firmware revision number, after a few seconds the unit will display the first option in the menu structure (see below).

3. The display will enter standby mode after defined timeout (default 10min) or user selects “END” option in menu, press the Mode button to turn the display back on.

4. Changes to the settings can be made via the + and – buttons, the Mode button will

accept changes and move onto the next menu option.

5. When setting the speeds, there is an internal logic: Low<Normal<Boost<Purge. I.e., Boost is always higher than Normal.

6. The actions for each of the Live Switched (LS), inputs are selectable. The setting for delays and over run timers are applicable to all inputs.

7. To restore factory settings, Press and hold “Mode” button for 10 seconds

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Wireless units can be commissioned via the Bluetooth connected App. Links to the App are shown on the cover page of this manual. The App must be installed before a connection to the unit is possible.

Bluetooth Pairing

To enable Bluetooth pairing on the unit:

- Press the Mode button to turn on the display

- Press and hold the Mode button until the LED illuminates solid Blue Release the mode button, the LED will flash Blue to indicate that it is in pairing mode.

- Follow the instruction on the App to connect to the unit.

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User Configurable Parameters

Display

Function

text

Lxx Low speed 1 to 97% motor speed 10%

nxx Normal speed 2 to 98% motor speed 35%

bxx Boost speed 3 to 99% motor speed 70%

Pxx Purge Speed 4 to 100% motor speed 100%

LS1 Live switch 1 Low, Boost or Purge speed Low

LS2 Live switch 2 Low, Boost or Purge speed Boost

LS3 Live switch 1&2 Low, Boost or Purge speed Purge

c-n Comfort mode Comfort mode - yes or no No

d-n Delay On Delay on - yes or no No

dxx Delay On time Delay to boost duration 1 to 60 minutes 10m

o-n Overrun Overrun - yes or no No

oxx Overrun time Overrun duration 1 to 60 minutes 10m

r-n Humidity – Rapid Rise Rapid rise - yes or no Yes

A-n Humidity – Ambient Response Ambient response - yes or no No

hxx Humidity threshold Ambient response threshold 40 to 90% RH 70%

C2b CO2 threshold boost

C2P CO2 threshold purge

A1LA Analogue 1 - low action Low, Normal, Boost or Purge speed Low

A1HA Analogue 1 - high action Low, Normal, Boost or Purge speed Purge

A1tL Analogue 1 - low threshold Analogue Input Threshold Low 1 - 99 15

A1tH Analogue 1 - high threshold Analogue Input Threshold High 1 - 99 75

A2LA Analogue 2 - low action Low, Normal, Boost or Purge speeds Low

A2HA Analogue 2 - high action Low, Normal, Boost or Purge speeds Purge

A2tL Analogue 2 - low threshold Analogue Input Threshold Low 1 - 99 15

A2tH Analogue 2 - high threshold Analogue Input Threshold High 1 - 99 75

D1 Digital input 1 Action Low, Boost or Purge speeds Low

D2 Digital input 2 Action Low, Boost or Purge speeds Purge

unl Unlock code Turn on/off the menu lock - - -

PIn Display Pin 3 characters A to 9 LoC

dtxx Display time Adjust how long the display is illuminated 1-99 min

rot Rotate display Invert the display rot

hu Humidity Show the current internal humidity %

tu temperature Show the current internal temperature °C

CO2 CO2 Show the current CO2 level PPM

end end End of menu (loop to start)

Boost threshold 650 – 4950 PPM in increments of 50 Purge threshold 700 – 5000 PPM in increments of 50

Selections Default

100

195

If the unit being commissioned is not fitted with the relevant hardware, the associated menu options will not be available.

CO2 Calibrations

The following instructions describe the actions required to calibrate the CO2 sensors used within the MEV unit (if fitted), and the Room Sensor accessories in two steps:

1. MEV Unit – Internal sensor

Step 1 can be done by either Exposure method or Measurement method, the baseline step 2 is actioned once either step 1 options are complete.

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1.1 Exposure method step 1

Exposure method assumes that the outside CO2 concentration is 400 PPM in the rooms in which the MEV extracts air from, the Rooms must be well ventilated by opening any external windows and doors for 10 to 15 minutes. The room must remain well ventilated and unoccupied until after the baseline step has been actioned.

1.2 Measurement method step 1

If the Engineer has a calibrated CO2 meter, they simply need to measure the CO2 in accordance to the CO2 meters instructions within the rooms the MEV extract air from. Measurement taken from each room should be recorded and then averaged.

Example: Room 1 – 450ppm + Room 2 440ppm + Room 3 – 460ppm = 1350ppm / 3 = 450ppm

The averaged value is then used during the baseline step.

1.3 Baseline step 2

MEV On-Board display method Within the MEV menu there is rEF which has a default value of 40 (=400ppm), if using the Exposure method of calibration this does not need to be changed. For the Measurement method of calibration, the value within rEF should be changed to the recorded average PPM, using the example value this would be 45 (=450ppm). With the rEF value set as required, the user should navigate to the cAl menu and use the up/down arrow to select y (=Yes). The status LED will start blinking Magenta colour signifying the start of the calibration, the MEV will repeatedly read the CO2 sensor for 3 minutes to obtain a stable reading, once the status LED stops flashing the Calibration value has been set.

MEV Mobile App method Once the app is connected to the MEV navigate to the CO2 screen from the home screen. On the CO2 screen enable Set CO2 calibration at the bottom of the page. An additional slide bar will appear with a default value set to 400ppm, if using the measurement method, the value should be changed to match the measured averaged recorded PPM, using the example value this would be 450ppm. For the Exposure method the value should be unchanged at 400ppm. With the value set the Save button should be pressed in the top right of the screen to start the calibration process, the status LED will start blinking Magenta colour signifying the start of the calibration, the MEV will repeatedly read the CO2 sensor for 3 minutes to obtain a stable reading, once the status LED stops flashing the Calibration value has been set.

2. Room Sensor Calibration

The Room sensor can only be calibrated using the Exposure method and will have Auto Background Calibration (ABC) by default.

2.1 Exposure method Step 1

Exposure method assumes that the outside CO2 concentration is 400 PPM in the room which the Sensor is fitted, the room must be well ventilated by opening any external windows and doors for 10 to 15 minutes. The room must remain well ventilated and unoccupied until after the baseline step is complete.

2.2 Baseline method – Step 2

With the Room sensor paired to the system the status LED will be Green when the button is pressed, in this condition the button should be pressed and held (8 Seconds) until the status LED is Magenta, the button should then be released and the LED will be blinking Magenta to signify the start of the calibration process, the room should be unoccupied once the calibration has started and should remain so for 5 minutes. During the calibration process the Room sensor will repeatedly read the CO2 sensor for 3 minutes to obtain a stable reading, once the status LED stops flashing the Calibration value has been set.

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FAULT CODES

offline/Lost

RF/RS485 is offline/Lost

Re-pair the sensor to the unit, see page 10.

If the MEV unit detects a fault it will display an error message on the HMI display:

Fault Code Description

F01

F02 Motor Fault – No RPM

F03

F04

F05

Control fault – Unit failed startup check

Humidity/Temp sensor Fault – No value – internal sensor CO2 sensor Fault – No value – internal sensor Temp or Humidity sensor connected via RF/RS485 is

Turn the power off and on again.

Check that the impellor has free movement. Check internal motor wiring.

Contact tech support, scroll part.

Check the internal wiring to the sensor

Check that the sensor is turned on. Re-pair the sensor to the unit, see page 10.

F06

F07 4-Way Speed Switch SSU offline or lost – Please reconnect

F08 AIM (Alarm Interface Module) AIM Sensor triggered / offline or lost – Verify Issue

If a fault persists, contact your local technical support, see the back cover of this manual for details.

CO2 sensor connected via

Check that the sensor is turned on.

SPARE PARTS

WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE ISOLATED FROM THE POWER SUPPLY DURING PART REPLACEMENT.

1. Individual faulty parts should not be replaced due to complexity of assembly. Only the full scroll assembly is replaceable.

2. To remove the scroll assembly, isolate the power, then use a coin or similar to depress the cover retention clips and remove the cover.

3. Disconnect and remove the power supply and signal leads.

4. Remove the scroll assembly by unscrewing the two screws and unclipping the clips in the opposite two corners and lift the scroll assembly out of the housing.

5. The fan has sealed for life bearings, which do not require lubrication. Expected service life is at least 45,000 hours continuous running.

6. Upon reassembly, check all fixings are tight and secure.

For a replacement Scroll assembly please contact: Vent-Axia Technical support +44 (0)344 856 0594 Email: [email protected]

Please take note of the model’s name and number to ensure the correct scroll assembly is supplied.

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ACCESSORIES

SMV H

SMV HX / CO2

Sensor/Controller

Wired

AIM (Alarm

External Temp/RH

MEV Controller RH

Part

MVDC-MS / H

Name / Function

Temp/RH 496428 (240V) 496428 (240V) 496429 (240V) 496429 (240V)

CO2 (+RH)

0-10V

PIR - - 496438 (240V) 496438 (240V) 496438 (240V)

interface module)

battery powered

RS485 & RF868

Speed Switch

4 way

0-10V

496432 (240V) 496432 (240V) 496433 (240V) 496433 (240V) 496433 (240V)

- - - - 496441 (240V)

- - - - 496442 (Battery)

- - 496442 (240V) 496442 (240V) 496442 (240V)

- - 496621 (240V) 496621 (240V)

All units

Sensor/Controller Name

4-way analogue speed switch 496622

Timespan controller 563519

Air Quality Sensor 563506

Ambient response Humidity sensor 563550

Ecotronic Humidity sensor 563532

ThermoSwitch 563502

7 Day timer switch 563515

Visionex PIR 459623

3-pole Isolator switch 563518

Remote delay timer 457986

Isolator relay 442030

Normal/boost switch 455213

Normal/boost/purge switch 5108454

2-way switch with neon 459746

3 speed controller switch 563533

Normal / boost switch stainless 437320

Normal / boost switch with Neon 449060

LED Fault indicator 448356

0-10V

Number

SMV PLUS H

RS485

SMV PLUS HX / CO2

RS485

Wireless RF868

496429 (240V) 496431 (Battery)

496620 (240V) 496437 (Battery)

Page 17

Product Fiche

of scope)

NRVU/UVU or BVU

Regenerative, None)

none)]

(@Max.Flow Rate)

Typology: (CTRL/ Typology)

extract air side;

energy efficiency of the unit

Disassembly Instructions)

20 Pa: (for Non

Ducted VUs)

(for Non

Ducted VUs)

Consumption: AEC (kWh/a)

(kWh/a)

Name: Vent-Axia

Model ID (Stock Ref.) 437634C 443298B 445655B 495360 495361

SEC Class B B B

SEC Value ('Average') -27.2 -27 -26.9

SEC Value ('Warm') -11.7 -11.5 -11.4

SEC Value ('Cold') -54.3 -54.1 -54.0 Label Required? (Yes/No=Out

Declared as: RVU or

Speed Drive Multi Speed Type HRS (Recuperative,

Thermal Eff: [ (%), NA(if

Max. Flow Rate (m3/h) 338.8 400 505.1 Max. Power Input (W):

LWA: Sound Power Level dB) 46.4 50.7 52.2

Ref. Flow Rate (m3/s) 0.066 0.078 0.098

Ref. Pressure Diff. (Pa) 201 203 206

SPI [W/(m3/h)] 0.07 0.08 0.09 Control Factor & Control

Control Factor; CTRL 0.65

43 52 85

Yes

RVU/UVU

None

N/A

407849A

496186

495362 495363

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; Mixing Rate of Non-Ducted BVUs not intended to be equipped with one duct connection on either supply or

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

For UVUs (Instructions Install Regulated Supply/Extract Grilles Façade)

Internet Address (for

Sensitivity p. Variation@+20/-

Air Tightness-ID/OD-(m3/h)

Annual Electricity

Annual Heating Saved: AHS

AHS: Average 28.3 28.3 28.3

AHS: Warm 12.8 12.8 12.8

AHS: Cold 55.4 55.4 55.4

0.4 0.5 0.6

<5% Internal, <5% External

N/A

In F&W

www.vent-axia.com

N/A

Page 18

Disposal

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

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. Motors are guaranteed for five years.

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,

 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.

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

The guarantee is offered to you as an extra benefit, and does not affect your legal rights

The Guarantee

provided that the product:

IF CLAIMING UNDER TERMS OF GUARANTEE

purchase.



Head Office: Fleming Way, Crawley, West Sussex, RH10 9YX. Tel: 01293 526062 Fax: 01293 551188

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

SALES ENQUIRIES: Tel: 0344 8560590 Fax: 01293 565169 TECHNICAL SUPPORT: Tel: 0344 8560594 Fax: 01293 532814 Web: www.vent-axia.com Email: [email protected]

Ventair Australia

Tel: +61 3 9775 0556 Fax: +61 39775 0775 Email: [email protected] 4 Capital Place, Carrum Downs, VIC 3201, Australia

As part of the policy of continuous product improvement Vent-Axia reserves the right to alter specifications without notice.

EU Authorised Representative: Vent-Axia Bedrijvenweg 17 7442 CX Nijverdal Nederland [email protected]

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