Vectaire

Ventilation specialist

Midi BY AT

  • very low noise levels - lined with Class "O" fire resistant acoustic foam
  • with summer bypass and frost-stat
  • efficient, low energy solution to controlling condensation and pollution in residential properties up to 170m2
  • up to 94% heat exchange efficiency
  • variable choice of low (trickle), boost and purge speed at installation
  • for wall, cupboard or loft installation
  • universal handing for models without humidistat
  • low running costs
  • complies with Building Regulations Parts L1A 2013 and F 2013
  • manufactured in UK to ISO 9001
  • accurate commissioning via integral touch screen LCD

General

  • extremely low noise levels
  • up to 95 litre/sec at 50Pa - max 101 litre/sec capacity
  • sfp down to 0.50 W/l/s
  • summer bypass activated when inside temperature is above 24ºC (and outside temperature between 14ºC and 24ºC);
  • frost-stat - proportionally reduces intake motor speed as temperature falls - activated when the outside temperature between +2ºC to -8ºC.
  • run-time and power outage counters
  • easy to install and maintain
  • easy to access G3 filters
  • universal handing for models without humidistat - left or right
  • for fitting vertically into lofts, or cupboards - wall fixing bracket supplied
  • variable low (trickle), boost and purge options for each motor
  • boost speed can be activated by a 230V switched live, or a 0-10V connection from:
    • a light switch (if more than one light switch is used, each one must be a double pole switch)
    • Remote humidistat (230V - DRH240)
    • Passive infra red (230V - PIRFF)
    • Thermostat (230V - THM)
    • Remote switch/pull cord - 230V
  • low running costs
  • 5 year warranty - 1 year parts and labour, 4 years parts only

CONTROL FEATURES - STANDARD

  • independent variable speed adjustment for each motor for trickle, boost and purge speeds.
  • adjustable boost speed over-run timer from 0 to 30 minutes.
  • adjustable boost speed delay from 0 to 5 minutes.
  • adjustable purge speed over-run timer from 0 to 250 minutes, pre-set to 15 minutes (adjustable at factory).
  • adjustable night time boost and purge inhibitor.
  • integral frost-stat - proportionally reduces intake motor speed as temperature falls
  • automatic summer bypass

CONTROL FEATURES - FACTORY SET

  • change of ductwork handing on humidistat version (trip point can be set at manufacture)
  • integral humidistat - proportionally increases motor speeds with rising humidity
  • 0-10V connections can be added for:
    • BMS - for remote motor shut-off
    • CO2 detector
    • home automation system
    • external pre-heater
    • 3 speed selector switch
  • purge speed over-run time
  • holiday mode for reduced speeds when property is unoccupied (factory set option)
  • run-time and power outage counters downloadable via QR code


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Specification

  • compact unit - casing from steel sheet - epoxy paint finish
  • lined with Class "O: fire resistant acoustic foam
  • low energy EC brushless motor with single width, single inlet, direct drive, forward curved impellors
  • operates in temperature up to 60ºC
  • easy to access standard, disposable G3 filters
  • counter flow heat exchanger


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Compliance

  • Part L1A 2013 of Building Regulations for enhanced energy saving capability
  • Part F 2013 of Building Regulations for reliable, efficient ventilation
  • EU RoHS Directive Compliant.
  • Complies with IEC60335-2-80, LVD2006/95/CE and EMC2014/30/UE (European Directive against radio interference and electro-magnetic compatibility
  • manufactured in UK to ISO 9001
  • CE marked
  • SAP PCDB Listed


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Range

  • Midi BY-AT+LCD - bypass, attenuation, universal, integral LCD
  • Midi BYAT+LCDLH - bypass, attenuation, left drain, humidistat, integral LCD
  • Midi BYAT+LCDRH - bypass, attenuation, right drain, humidistat, integral LCD


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Features

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Installation

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Pressure

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Dimensions

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Typical specification

  • The unit will:
    • be manufactured by Vectaire Ltd.
    • be constructed from steel sheet with an epoxy paint finish and the case lined and insulated with Class "O" fire resistant acoustic foam to ensure extremely low noise levels.
    • be suitable for installation on walls, in cupboards or in lofts.
    • have a condensate tray and drain connections for connection by others.
    • have a high efficiency counterflow heat exchanger with a thermal efficiency of up to 94%
    • have two low energy, high efficiency EC fan motor assemblies.
    • have a specific fan power from 0.50 W/l/s.
    • have two G3 grade filters to protect the heat exchanger
    • will operate in temperature up to 60ºC
    • have an automatic summer bypass
    • have an integral frost-stat
  • Units without humidistats shall be capable of being handed for left or right mounting without any on-site assembly.
  • Access to filters shall be from the front by removing two magnetic strips.
  • The unit shall incorporate the following control features:

STANDARD

    • independent variable speed adjustment for each motor for trickle, boost and purge speeds.
    • adjustable boost speed over-run timer from 0 to 30 minutes.
    • adjustable boost speed delay from 0 to 5 minutes
    • adjustable purge speed over-run timer from 0 to 250 minutes, preset to 15 minutes (adjustable at factory).
    • adjustable night time boost and purge inhibitor
    • integral frost-stat - proportionally reduces intake motor speed as temperature falls
    • summer bypass - automatic bypass of heat exchanger in hot weather

FACTORY SET

    • change of ductwork handing on humidistat version (trip point can be set at manufacture)
    • integral humidistat - proportionally increases motor speeds with rising humidity
    • 0-10V connections can be added for:
    • BMS - for remote motor shut-off
    • CO2 detector
    • home automation system
    • external pre-heater
    • 3 speed selector switch
    • purge speed over-run time
    • holiday mode for reduced speeds when property is unoccupied (factory set option)
    • run-time and power outage counters downloadable via QR code.
  • LCD touch screen informs user of:
    • operating speed (user adjustable)
    • internal and external temperatures
    • status icons shows which functions currently controlling fan speed
    • date and time (user adjustable)
    • relative humidity level
    • bypass status
    • error and service notifications
    • filter saturation level (reset after changing)
    • user can also set system to holiday mode and set language
  • (Loft mounted units can be provided with a remote LCD touch screen).
  • The LCD touch screen will allow the commissioning engineer or installer to set the following parameters:
    • Time and Date
    • Holiday Mode
    • Trickle, boost and purge speeds for each motor
    • Boost speed delay time duration
    • Boost over-run time duration
    • Night time boost inhibitor times
    • Touch screen sensitivity calibration
    • Pre-heater threshold (if fitted)
    • Handed installations
    • Activate CO2 detector or home automation system (if fitted)
  • The unit will:
    • be CE marked
    • comply with:
    • manufactured in UK to ISO 9001
    • be SAP PCDB Listed
    • have a 5 year warranty -1 year parts and labour and 4 years parts only
  • Part L1A 2013 of Building Regulations for enhanced energy saving capability
  • Part F 2013 of Building Regulations for reliable, efficient ventilation
  • EU RoHS Directive Compliant
  • IEC60335-2-80, LVD2006/95/CE and EMC2014/30/UE (European Directive against radio interference and electro-magnetic compatibility


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Vectaire Ltd, Lincoln Road, Cressex Business Park, High Wycombe, Bucks, HP12 3RH

Tel: +44(0)1494 522333. Fax: +44(0)1494 522337. http://vectaire.co.uk, e-mail: sales@vectaire.co.uk