Sentinel Totus2 D-ERV Vent-Axia

• 3 unit sizes covering 500-2000m3/h
• Sentinel demand ventilation control
• Low energy EC/DC motors
• Internal or external mounting
• Up to 90% energy recovery cell
• Independently tested to EN 308
• Proportional or constant pressure control
• Performance tested to BS848 Parts 1 & 2
• Manufacture controlled to BS EN ISO 9001

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Symbol Vent-Axia
Profile: Manufacturer
Headquarters: GB
Certificates: ISO 14001:2004, ISO 9001:2008
Establishment date: 1936
Guarantee: 5 years
Employees: 800
Assortment: Ventilation products, Fans, Roof fans, Air Handling Units
Mini D-ERV Unit - 1
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Midi D-ERV Unit - 1
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Maxi D-ERV Unit - 1
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Mini/CP D-ERV Unit - 1
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Midi/CP D-ERV Unit - 1
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Maxi/CP D-ERV Unit - 1
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Product descritipion

Following on from the highly successful award winning Sentinel demand ventilation system, Vent-Axia has taken the next step by incorporating the
Sentinel demand control philosophy with a state of the art high efficiency heat recovery cell to create the Sentinel Totus2 D-ERV, Demand Energy
Recovery Ventilation System.


Sentinel Totus2 D-ERV incorporates the same ‘Sentinel’ high efficiency EC/ DC backward curved motors/impellers, Sentinel Demand Controlled ventilation strategies and a market leading high efficiency counterflow heat recovery cell which achieves up to 90% energy recovery. The Energy recovery capabilities are independently tested and rated to EN308.

Sentinel provides a solution to the common problem of ‘Why ventilate a room you’re not using?’ or ‘Why over ventilate a room with only one or two
occupants inside?’

Sentinel overcomes many of the issues encountered with a traditional fixed volume ventilation system that is either ON or OFF irrespective of the number of people in the room, risking over ventilation, burning valuable money and is a wasteful use of energy.



Overview Sentinel Totus2 D-ERV

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. Maxi units are manufactured with an aluminium frame construction with double skinned Aluzinc panels fitted with 60kg/m3 thermal acoustic insulation.

The casing includes an inclined inlet and bellmouth entry which directs the incoming air to the impeller with minimal turbulence. The
result is better air management through the unit, less noise, higher efficiency and an increased performance.

The housing is designed to be as compact as possible for concealed false ceiling applications and Sentinel Totus2 D-ERV, Demand Energy
Recovery casings incorporate top and bottom access panels for maintenance (note Maxi unit is side access). Access panels are sized to
enable single man maintenance.

Impellers
All Sentinel Totus2 D-ERV units feature low energy, Class 1, EC/DC external rotor motor and backward curved impeller assemblies
specifically chosen for performance and nonoverloading
characteristics. The assembly is dynamically balanced to DIN ISO 1940
Grade 6.3. Ball bearings are greased for life. Insulation is Class ‘B’ (from -25°C to +60°C). All models incorporate internal electronic overload protection and soft start function.

Filters
All Sentinel Totus2 D-ERV units are complete as standard with G4 replaceable synthetic filters, complete with filter change warning. High
grade F6 filters are available as an option.

Electrical
Every Sentinel Totus2 D-ERV unit is fitted with integrated controls and a purpose designed common user interface controller incorporating
a 16-character backlit alpha numerical 2 line display with 4 button membrane keypad for fan status and commissioning set up. As standard this is mounted behind a removable perspex viewing pane allowing commissioning without accessing the wiring compartment. The user interface can be removed and remotely fixed if required. The unit also incorporates a isolator that is suitable for fitting a locking device to
prevent accidental operation.

Motors are single phase 230V +/- 10% /
50/60Hz / 1ph.

24V DC power is provided from the unit for powering the matched range of Sentinel Demand Ventilation switches and sensors.

Performance/Sound
Extensively tested to BS848 parts 1 & 2. Published dB(A) figures are free field sound pressure levels at 3m with spherical propagation at reference level of 2 x 10-5 Pa. The inlet/outlet sound power level spectra figures are dB with a reference of 10–12 watts.

 

 

Models

Sentinel Totus2 D-ERV Vent-Axia - 1

SENTINEL TOTUS 2 MINI - Constant pressure control

Nominally 700 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.
Sentinel Totus2 D-ERV Vent-Axia - 1

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.
Sentinel Totus2 D-ERV Vent-Axia - 3

SENTINEL TOTUS 2 MAXI

Maxi units are manufactured with an aluminium frame construction with double skinned Aluzinc panels fitted with 60kg/m3 thermal acoustic insulation. The casing includes an inclined inlet and bellmouth entry which directs the incoming air to the impeller with minimal turbulence. The result is better air management through the unit, less noise, higher efficiency and an increased performance. The housing is designed to be as compact as possible for concealed false ceiling applications and Sentinel Totus2 D-ERV, Demand Energy Recovery casings incorporate top and bottom access panels for maintenance (note Maxi unit is side access). Access panels are sized to enable single man maintenance.

Sentinel Totus2 D-ERV Vent-Axia - 3

SENTINEL TOTUS2 MAXI - Constant pressure control

Nominally 2000 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.



 Fan Dimensions (mm)

 

Model a b c d e f g h i j
Mini 1800 1910 - 970 900 450 350 - 55 70
Midi 1900 2020 400 1320 1250 538 350 250 60 70
Maxi 1800 1924 - 1212 1130 530 660 - 60 -

Sentinel Totus2 Mini/ Midi

Sentinel Totus2 D-ERV Vent-Axia - 5

Sentinel Totus2 Maxi

Sentinel Totus2 D-ERV Vent-Axia - 6

 

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