Totus 2 MIDI – Vent-Axia Commercial MVHR Unit (TOTUS2MIDI)


Totus 2 Midi D-ERV Vent-Axia MVHR unit – Sensor & Constant pressure control

2 Year Warranty as standard on all Vent-Axia MVHR Units

VA-TOTUS-MIDITotus 2 MIDI - Vent-Axia Commercial MVHR Unit (TOTUS2MIDI) - Sensor Control


Mini and Midi Models are manufactured with a frameless construction from single skinned Aluzinc panels, internally lined with 90kg/m3 high efficiency acoustic and thermally insulating foam (fire retardent to BS476 Part 7 Class 1 & Part 6 Class O). Aluzinc panels allow for all units to be mounted either internally or externally as standard (IPX4). An optional inlet cowl is available for roof mounting applications if required.

£6,011.02 (excl. VAT) / £7,213.22 (incl. VAT)
VA-TOTUS-MIDI-CPTotus 2 MIDI - Vent-Axia Commercial MVHR Unit (TOTUS2MIDI) - Constant Pressure

SENTINEL TOTUS 2 MIDI – Constant pressure control

Nominally 1000 m3/h, designed for demand ventilation control with high efficiency energy recovery (independently tested to EN308). Unit incorporates In-built constant pressure control to control units airflow against target duct pressure. Range of Duct Dampers or PIR activated grille to control individual room extract rates (trickle & boost) Duct dampers can be individually controlled for occupancy & air quality.

£6,011.02 (excl. VAT) / £7,213.22 (incl. VAT)

Vent-Axia Sentinel Totus 2 Midi Commercial MVHR Unit.

Ideal in applications where rooms are used intermittently. The Sentinel Totus 2 midi can monitor occupancy and respond to the ventilation demands of a room adjusting atmosphere accordingly. A range of sensors of controls are available that can monitor carbon dioxide levels, temperature humidity or air quality.

Features of the Totus 2 Midi by Vent-Axia:-

  • Designed to operate at airflows of up to 1000m³/hr at 150 Pa.
  • Fitted with high efficiency low energy EC/DC motor technology.
  • ERP 2015 compliant fans.
  • Recovers up to 90% of extracted energy.
  • The Sentinel Totus² range is fully compliant with both Part F and L UK building regulation requirements.
  • 90% heat exchange efficiency independently tested to EN 308.
  • Inbuilt automatic frost protection.
  • Low standby power 0.6watts (PIR activation).
  • Monitors occupancy and responds to the ventilation demands of a room.
  • The units contain heaters, which automatically prevent the heat recovery unit from freezing. These can also be used to top up the air temperature to the room.

Typical applications for the Sentinel Totus 2 Midi:-

  • A network of hotel rooms/bathrooms flats or apartments that are used for limited periods such as mornings or evenings.
  • Schools classrooms that are occupied by a variable number of people. Sensors can keep CO2 levels within prescribed limits.
  • Office environments which have a variable number of staff and visitors that when occupied must meet prescribed airflow rates.

Sentinel Totus 2 Midi D-ERV Technical Specification

Tech DataTotus 2 Midi
Airflow (nominal)1000m³/hr @ 150 Pa
AC Voltage Input220-240 V ac (Single phase)
AC Frequency input50/60 Hz nominal
Supply fuse or Cct Breaker16 A
Rated Current12 A
Rated Power2500 W
Total Fan Power (max.)500 W
Total Frost Heat (max.)2 kW
Power (standby)0.6 W
DC Voltage Output24 V dc (18-30 V dc) at 350 mA (max.) for switches & sensors
IP rating - UnitIPX4
IP rating commissioning interfaceIP42
Operating Temperature-10°C to +40°C
Operating Humidity0% to 95% (non-condensing) - weatherproof unit option
Storage Temperature-10°C to +40°C
Storage Humidity0% to 95% (non-condensing)
Condensate Pump12 m max head, 25 m max hoizontal distance, but 150 max head X distance

Totus² D-ERV Catalogoue Page

Totus² D-ERV Installation, Operation & Maintenance Manual

Totus² D-ERV Midi - Data Sheet - Sensor Control Model

Totus² D-ERV Midi - Data Sheet - Constant Pressure Model

Totus² D-ERV Midi - Performance Guide & Sound Data

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