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Counterflow MVHR

The Axco MVHR C range of ventilation units are manufactured for us in the UK and are Energy Saving Trust (EST) Best Practice Compliant. The combination of extremely low power consumption and a highly efficient heat exchange is specifically designed to enhance the building’s SAP performance via Appendix Q.

  • Energy Saving Trust compliant
  • Up to 92% efficient
  • G4 filters
Features & Benefits Units Controls Ducting & Valves Installation
  • Extremely low power consumption. Latest EC fans with SFP (Specific Fan Power) from 0.7wls-1. Energy Saving Trust compliant.
  • Highly efficient heat exchange. Patented aerodynamic internal structure for the lowest air resistance & best in class performance - up to 92% efficient.
  • Advanced counterflow ventilation units for all home types, providing high efficiency and high airflow capability.
  • Demand control / manual control automatic boost by rise in humidity with manual boost switch also provided. Setback option for unoccupied periods. Delivers top performance when and where you need it.
  • Fully adjustable boost overrun timer 0-60 minutes. Can be set to suit occupants lifestyle.
  • Unique design temperature controlled summer bypass with Summerboost (incorporating a patented stainless steel shutter valve) assists comfort cooling in summertime: Exclusive fail-safe construction and performance.
  • G4 filters as standard. Low cost filter refills available, saving waste and cost.
  • Intelligent frost protection - built-in to prevent freezing.
  • Internally insulated in high density Expandable Polypropylene (EPP) - allows unit to be installed in any location within the home where temperature ranges from -5 to +40oC.
  • Manufactured in durable Zintec® steel complete with high gloss baked resin finish for long life.

Best Practice MVHR Installation 

All systems are designed in-house by our experienced technical team and installed by our own team of BPEC registered engineers.

Our Mechanical Ventilation with Heat Recovery (MVHR) systems are installed with smoothflow rigid ducting throughout, providing higher heat efficiency. The resulting low pressure loss will mean a lower energy use and the system will be quieter due to efficient low velocity.

This solid ducting is resistant to crush damage during construction and thereafter can be cleaned and maintained if required.

We only use precision engineered metal and plastic fittings, ducting and silencers mechanically fastened and sealed at every joint.

MVHR Ducting Installation should take place as follows:

If the house is of concrete slab construction

  • When roof is complete (building watertight)
  • Before any other services are installed below the concrete slab
  • A void space of 200mm below the concrete slab will allow insulated duct to be used
  • A void space of 100mm will mean you will have to convert to 204/60mm flat channel ducting

If the house is of timber-frame construction

  •  When roof is complete (building watertight)
  • Before any other services are installed
  • Timber partition walls and floors are in place

Should you decide to install a MVHR system from Beam on a DIY basis, we can provide design layout and commissioning. However, it is crucial that best practice is adhered to at all times to ensure system efficiency.

Unit Axco MVHR C65 Axco MVHR C90 Axco MVHR C130
EST Compliant

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Specific Fan Power (SFP) 0.6wls −¹ 0.5wls −¹ 0.5wls −¹
% Heat Exchange Efficiency (HEE) 88% 92% 92%
Flow (max) 245m³h−¹ 390m³h−¹ 500m³h−¹
Summer Bypass

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Demand control / Manual Boost System

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G4 Filters

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Condensation Drain Required

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Inlet Diameter (mm) 125 150 150
Weight (kg) 16 24 31
Dimension W x H x D (mm) 600 x 430 x 295 715 x 490 x 426 790 x 665 x 495
SAP Appendix Q Listed

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Auralite®

Auralite® is a low voltage hard wired remote LED ventilation system status indicator, designed to fit a standard UK patress or recessed backbox.  The indicator is for use with Axco C Range models C50, C75 and C100 and displays:

  • Normal Running - the system is running at continous speed (normal mode) or the unit is running at setback speed if this light is flashing 
  • Frost Protection - the unit is in automatic frost protection mode
  • Filter Change - the filters require changing 
  • Boost Speed - the system is running in boost speed if this light is flashing 
  • Summer - the is in summer bypass mode
  • Fault - there is a fault with the system and the installer should be contacted 
 

Features and Benefits

  • Meets guidlines for owner accessability 
  • Increase owner awareness of system operation 
  • Can be sited remotely from unit in an easy to access location 
  • Discreet design 
  • Fits a standard UK patress box 
  • Compatible with Titon HRV units  

Aurastat®

Aurastat® is a Programmable controller and display for commissioning and monitoring an Axco C130 MVHR system, and is connected to the MVHR system via a wired connection.

 

  • Boost alert timer
  • Summer Mode, Summer Bypass and SUMMERboost® settings
  • Duct heater settings
  • Room sensor set points
  • Internal humidity settings 
  • Continous, boost and set back speeds
 

The home owner has access to set a number of features themselves, such as:

  • 24-hour clock
  • Day of week display
  • Back light brightness
  • Boost overrun timer
  • Boost delay timer 
  • Boost inhibit times
  • Internal humidity sensor set point 
  • Filter change alert interval and reset 

 

Features and Benefits

  • User friendly interface showing system status, fan speeds/air temperature and more
  • Boost alert triggers a warning message when the HRV has been left in boost
  • Grants the occupant accessibility and control
  • PIN protected menu structure for commissioning 
  • Low power consumption 
  • Individual supply/extract fan speed settings 
  • Seperate kitchen and wet room boost function settings 
  • Demand control features via 2 x 0-10V DC proportional sensor inputs (power supplied from main PCB, RH, CO2, Air quality and temperature)
  • Fully automatic summer bypass
  • Intelligent frost protection 
  • Boost delay Boost inhibit within selected time zones 
  • Running hours recorder
  • Internal MVHR humidity sensor setpoint 
  • Fully adjustable SUMMERboost® speed (linked to automatic bypass)
  • Programmable timer option 
  • Mains voltage or volt free boost switching  

Auramode®

Auramode Control Panel

The auramode® allows straightforward operation of ventilation speeds at a click of a button. Offering a display that is back lit with adjustable light and contrast settings, the indicator is for use with Axco C Range model C130 and displays:

  • Digital 4 speed switch (speeds 1, 2, 3 or 4)
  • Auto timed speed mode
  • 7-day, 8 settings per day programmable speeds
  • Filter change indicator with adjustable (1-24 months independent filter check and filter change intervals) Internal MVHR humidity set point adjustment
  • Boost inhibit functions linked to timed speeds (avoiding night time boosting via either switch inputs or humidity)
 

Features and Benefits

  • User friendly Interface
  • Fan speed commissioning
  • Multiple languages available
  • Boost inhibit
  • Compact design
  • Internal MVHR humidity sensor set point -5 Compatible with MVHR models
  • Kitchen boost overrun timer adjustment
  • Wet room boost overrun timer adjustment
  • Volt free and mains voltage MVHR Switch configuration setup
  • Humidity set point adjustment
  • High flow boost setting (speed 4)
  • Summerboost boost on/off selection
  • Single button operation for everyday basic functions
  • Low voltage, hard wired status programmer

One of the most important aspects of a well planned, low energy MVHR system is the ducting type, design and the quality of installation.

The best practice is to use larger diameter, 125mm diameter branch lines and up to 250mm diameter main lines, which can carry the necessary high volumes of air at low velocity (depending on size of system).

Rigid, large diameter ducting is the preferred choice to provide a smooth flow of air, causing less noise (from both fans and air turbulence) and costs less to run. Foil backed insulated ducting in a cold space is essential to retain high heat efficiency.

Careful consideration to the design and choice of installation materials ensures your MVHR system delivers the correct ventilation rate and heat efficiency to your home.

Our modern Supply & Extract Valves are manufacture in high quality steel and are designed to not produce down draft, ensuring a comfortable indoor climate.

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