Vent Axia Lo-Carbon Multivent MVDC-MSH - with humidity sensor 443298
Vent Axia Lo-Carbon Multivent MVDC-MSH features a DC motor and is one of the most efficient central extraction units in the UK. This unit offers ‘Close Control’ option in both residential or commercial applications along with the added benefit of an inbuilt humidistat. 5 years guarantee is offered on the MVDC LoWatt energy saving motor
Please note - You can purchase the MEV unit with or without the ductwork on this listing
- Internal Humidity sensor
- Maximum Airflow - 350m3/h
- Best in class Specific Fan Power (SFP) as low as 0.15 wls
- Dimensions (L x W x H) 340mm x 310mm x 249mm
- Ultra-quiet - acoustically lined for low noise levels
- Fitted with four extract valves – 125mm or 100mm diameter spigots allowing quick connection to ducts
- Recognised in SAP Appendix Q
- Complies with Building ADF (System 3)
- Mounting options – wall, ceiling or loft
- Improved controllability
- Switched Live Boost connection
- Fully variable normal and boost speeds
- Fully serviceable unit with all parts accessible
- 2-year standard or optional 5-year parts warranty
The potentiometer-controlled speed selector allows accurate setting of airflow
The unit has 2 fully variable speeds for trickle and boost, with an inbuilt humidistat activation for the boost speed.
A switched live (LS) can also be used to select boost speed when wired through an Isolator Relay (Part No. 442030 - not supplied).
An additional third speed (purge) is available by using a second switched live connection.
This unit is constructed of a PVC outer casing with an acoustic lining as standard, this ensures minimum noise levels
The unit has Long life, low energy multispeed DC motor
Installation on a ceiling, wall or floor is recommended
For the MVDC-MS H (443298) the Boost setting is activated by the internal humidity sensor.
The internal humidity sensor uses one of the two available LS inputs, the other remaining LS input can be used to switch the unit to Purge speed.
The MVDC-MS H has the option to switch from Normal to Boost speed (in effect over-riding the internal humidity sensor), this can be achieved by connecting an isolated switched live connection to the LS connection on the power supply terminal block. This must be isolated by using, for example an Isolator Relay Control, Vent-Axia part number 442030, or similar.
Isolator Relay Controller – Vent Axia part number 442030
Benefits of working with BPC Ventilation
- Authorised Vent Axia distributors
- In-House design service
- In-House Technical support
- Specialists in easy to install DIY systems
- 1000s of products in stock in our own warehouse
- Large showroom with working units on display
- Installer network throughout the UK and Ireland
- All systems comply to all the latest building control regulations
- 0% Finance available
- Ducting Kits
Multivent MVDC-MSH Kit
List of Products in Kit
part number Description 2 point kit 3 point kit 4 point kit 5 point kit 443298 Multivent MVDC-MSH 1 1 1 1 MW124 125mm Metal extract valve 2 3 4 5 C125 125mm pipe connector 1 2 3 4 GPVC125W 125mm PVC external grille (white) 1 1 1 1 IFD125 125mm Insulated flexible ducting X 10 Meter 1 2 2 3 ST75 Roll 75mm x 10m silver foil tape 1 1 1 1 JC160 Jubilee clip 100-150mm (pack 10) 1 1 1 2 T125 125mm T piece 0 0 1 2
- Technical Specification
MVDC-MSH Technical Information
A B C D E F G H I J 340 72.5 25 15 360 214 310 249 150 85
- Download Documentation
- Further Information
What is Mechanical Extract Ventilation (MEV)
Mechanical Extract Ventilation (MEV) systems provide continuous ventilation.
Centralised mechanical extract systems (c-MEV) also known as a Multipoint and Central Extract System draw moisture-laden air from multiple wet rooms of a property, Essentially the concept is to provide simultaneous, low level extraction from kitchens, bathrooms, shower rooms, utility rooms and toilets to a central extract fan typically located in a loft space or hallway cupboard via a system of ductwork and grilles to control humidity levels.. The extracted air is then normally discharged to outside via a single duct and grille/cowl.
Decentralised mechanical extract fan (d-MEV) also known as a continious running fan is perfect for single applications such as bathroom, kitchens or utility rooms if a (c-MEV) is not suitable
As this type of system has to work 24 hours a day, 7 days a week, 365 days a year, low noise levels and reliability are critical.
Our MEV systems are cost-effective and offer many benefits to home-owners:
Elimination of condensation dampness
Healthier living environment
Removal of musty odours
Low running costs and low-energy operation
Easy installation and low maintenance
MEV Suitable Applications:
Ideal apartment ventilation solution where there is possibly only one external wall.
Homes with more than one wet room.
Building Control System 3
Building Regulation Part F - System 3 covers continuous mechanical extract ventilation (MEV). This can be either a whole house centralised MEV system, or localised decentralised MEV fan.
Current Building regulation requires such systems be designed to provide background extraction at a rate equating to approximately 0.3 to 0.5 air changes per hour or individual room rates of 13 kitchen,and 8l/s for bathrooms (whatever higher is used) with the ability to boost by approx 25% for times when increased ventilation is required e.g. during cooking.
Replacement air is normally able to be provided via structural air leakage with older buildings above 5ma@50Pa or if the home is built to good airtight standards with background ventilation openings like trickle vents and wall vent having a minimum equivalent area of 2500 mm2 should be fitted in each room, except wet rooms, from which air is extracted
Always refer to your local building contro regulations as this information can change.
- €126.43 including VAT Excluding VAT €105.36including VAT
- €78.59 including VAT Excluding VAT €65.49including VAT
- €92.65 including VAT Excluding VAT €77.21including VAT
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