Discipline in Econex

Ventilation

From the air handling unit to every damper

Econex brings the ventilation system into one view – air handling units, VAV and dampers, rooms and air quality. Add optimisation, commissioning, special extract and common extract when the building needs them.

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Discipline
Ventilation
7 modules

The ventilation modules

Browse the modules and see what they look like in Econex.

  1. 01 / 07

    Air handling unit

    A technical view of every air handling unit with a flow diagram, temperatures along the airflow, fan performance and heat recovery.

    • Supply and extract with temperatures, pressure and fan speed
    • Heat recovery efficiency and SFP in real time
    • Filter condition, alarms and maintenance status
    sd.econex.no/building-a/ventilation
    Illustration
    Ventilation
    Building A · 3 air handling units
    Running
    Air handling units
    UnitStatusSupplyExtractImbalance
    360.001Office wingAuto8,420 m³/h8,173 m³/h2.9 %
    360.002Canteen/meetingAuto3,155 m³/h2,928 m³/h7.2 %
    360.003Garage/storageAuto1,885 m³/h1,857 m³/h1.5 %
    360.001 · Air handling unitSFP 1.74121 Pa
    VAV dampers · 360.001
    2.01 Office east
    46%
    2.02 Office west
    52%
    2.03 Meeting room
    61%
    2.04 Canteen
    38%
    2.05 Office north
    49%
    2.06 Storage
    22%
    2.07 Changing room
    31%
    2.08 Reception
    43%
    Special extract
    SA-01
    Kitchen spot extract
    1,243m³/hRunning
    SA-02
    Waste room
    426m³/hRunning
    SA-03
    Lab spot extract
    0m³/hStandby
    SA-04
    Garage CO
    964m³/hDemand
  2. 02 / 07

    VAV and dampers

    Every damper is linked to the room it serves and the unit it belongs to, with measured airflow against the designed vmin and vmax.

    • Damper position, control signal and airflow per damper
    • Vmin, vmax and nominal airflow from the design
    • Alert when a damper is fully open without reaching its airflow
    sd.econex.no/building-a/ventilation
    Illustration
    Ventilation
    Building A · 3 air handling units
    Running
    Air handling units
    UnitStatusSupplyExtractImbalance
    360.001Office wingAuto8,420 m³/h8,173 m³/h2.9 %
    360.002Canteen/meetingAuto3,155 m³/h2,928 m³/h7.2 %
    360.003Garage/storageAuto1,885 m³/h1,857 m³/h1.5 %
    360.001 · Air handling unitSFP 1.74121 Pa
    VAV dampers · 360.001
    2.01 Office east
    46%
    2.02 Office west
    52%
    2.03 Meeting room
    61%
    2.04 Canteen
    38%
    2.05 Office north
    49%
    2.06 Storage
    22%
    2.07 Changing room
    31%
    2.08 Reception
    43%
    Special extract
    SA-01
    Kitchen spot extract
    1,243m³/hRunning
    SA-02
    Waste room
    426m³/hRunning
    SA-03
    Lab spot extract
    0m³/hStandby
    SA-04
    Garage CO
    964m³/hDemand
  3. 03 / 07

    Ventilation optimisation

    The optimisation follows damper positions, air quality and comfort – not just pressure. Dampers that keep asking for more air than they can deliver are taken out of control, so the rest of the system is not pushed to needlessly high pressure.

    • Pressure is built carefully when reserve is needed – not blindly
    • Visible which dampers are in or out of control, and why
    • SFP is shown in real time on the units where the optimisation runs
    More about ventilation optimisation
    sd.econex.no/building-a/ventilation
    Illustration
    Ventilation
    Building A · 3 air handling units
    RunningOptimizer
    Air handling units
    UnitStatusSupplyExtractImbalance
    360.001Office wingAuto8,420 m³/h8,173 m³/h2.9 %
    360.002Canteen/meetingAuto3,155 m³/h2,928 m³/h7.2 %
    360.003Garage/storageAuto1,885 m³/h1,857 m³/h1.5 %
    360.001 · Air handling unitSFP 1.74121 Pa
    VAV dampers · 360.001Optimizer
    2.01 Office east
    46%
    2.02 Office west
    52%
    2.03 Meeting room
    61%
    2.04 Canteen
    38%
    2.05 Office north
    49%
    2.06 Storage
    22%
    2.07 Changing room
    31%
    2.08 Reception
    43%
    Special extract
    SA-01
    Kitchen spot extract
    1,243m³/hRunning
    SA-02
    Waste room
    426m³/hRunning
    SA-03
    Lab spot extract
    0m³/hStandby
    SA-04
    Garage CO
    964m³/hDemand
    Pressure optimisation
    Duct pressure is lowered until the most open damper sits at ~90%. 360.001 now 121 Pa.
  4. 04 / 07

    Commissioning

    With Econex as technical partner, the ventilation contractor can use Econex actively during balancing and commissioning – with a shared view of supply, extract and balance.

    • Designed versus measured airflow per damper
    • Imbalance between supply and extract per unit, floor and room
    • Progress can be followed along the way – not just at the end
    More about commissioning
    sd.econex.no/building-a/ventilation
    Illustration
    Ventilation
    Building A · 3 air handling units
    Running
    Air handling units
    UnitStatusSupplyExtractImbalance
    360.001Office wingAuto8,420 m³/h8,173 m³/h2.9 %
    360.002Canteen/meetingAuto3,155 m³/h2,928 m³/h7.2 %
    360.003Garage/storageAuto1,885 m³/h1,857 m³/h1.5 %
    360.001 · Air handling unitSFP 1.74121 Pa
    VAV dampers · 360.001
    2.01 Office east
    46%
    2.02 Office west
    52%
    2.03 Meeting room
    61%
    2.04 Canteen
    38%
    2.05 Office north
    49%
    2.06 Storage
    22%
    2.07 Changing room
    31%
    2.08 Reception
    43%
    Special extract
    SA-01
    Kitchen spot extract
    1,243m³/hRunning
    SA-02
    Waste room
    426m³/hRunning
    SA-03
    Lab spot extract
    0m³/hStandby
    SA-04
    Garage CO
    964m³/hDemand
  5. 05 / 07

    Special extract

    Extract for rooms with special needs – such as wet rooms, labs or kitchens. A trigger selects a low or high state, and each state has its own fan command and damper actions.

    • Triggers: room switch, binary signal, humidity or AHU operation
    • Dampers set to closed, Vmin, Vmax or auto per state
    • Supervision of run feedback, fan fault and airflow deviation
    More about special extract
    sd.econex.no/building-a/ventilation
    Illustration
    Ventilation
    Building A · 3 air handling units
    Running
    Air handling units
    UnitStatusSupplyExtractImbalance
    360.001Office wingAuto8,420 m³/h8,173 m³/h2.9 %
    360.002Canteen/meetingAuto3,155 m³/h2,928 m³/h7.2 %
    360.003Garage/storageAuto1,885 m³/h1,857 m³/h1.5 %
    360.001 · Air handling unitSFP 1.74121 Pa
    VAV dampers · 360.001
    2.01 Office east
    46%
    2.02 Office west
    52%
    2.03 Meeting room
    61%
    2.04 Canteen
    38%
    2.05 Office north
    49%
    2.06 Storage
    22%
    2.07 Changing room
    31%
    2.08 Reception
    43%
    Special extract
    SA-01
    Kitchen spot extract
    1,243m³/hRunning
    SA-02
    Waste room
    426m³/hRunning
    SA-03
    Lab spot extract
    0m³/hStandby
    SA-04
    Garage CO
    964m³/hDemand
  6. 06 / 07

    Common extract

    When several rooms share an extract, Econex controls the extract dampers as one group. The required extract is calculated from the supply air, with an offset and minus fixed CAV extracts, and the remainder is shared between the controlled dampers by nominal capacity.

    • Measured against the required total extract for the group
    • Control signals within each damper's min and max limits, with a dead band
    • Visible which dampers are in the control loop, and what the next calculated step is
    sd.econex.no/building-a/ventilation
    Illustration
    Ventilation
    Building A · 3 air handling units
    Running
    Air handling units
    UnitStatusSupplyExtractImbalance
    360.001Office wingAuto8,420 m³/h8,173 m³/h2.9 %
    360.002Canteen/meetingAuto3,155 m³/h2,928 m³/h7.2 %
    360.003Garage/storageAuto1,885 m³/h1,857 m³/h1.5 %
    360.001 · Air handling unitSFP 1.74121 Pa
    VAV dampers · 360.001
    2.01 Office east
    46%
    2.02 Office west
    52%
    2.03 Meeting room
    61%
    2.04 Canteen
    38%
    2.05 Office north
    49%
    2.06 Storage
    22%
    2.07 Changing room
    31%
    2.08 Reception
    43%
    Special extract
    SA-01
    Kitchen spot extract
    1,243m³/hRunning
    SA-02
    Waste room
    426m³/hRunning
    SA-03
    Lab spot extract
    0m³/hStandby
    SA-04
    Garage CO
    964m³/hDemand
  7. 07 / 07

    Fire dampers

    The fire dampers in the ventilation system are monitored in the fire damper central: end positions, faults and motor tests, with a weekly test that waits until the linked air handling unit has stopped.

    • Open and closed position for every damper, also on the drawing
    • Weekly test that is blocked while the unit runs
    • Test log with travel time and result
    Read about the fire damper central
    sd.econex.no/building-a/fire-dampers
    Illustration
    Fire damper control
    Building A · 10 dampers · 2 AHUs
    Auto
    Open
    10
    Closed
    0
    Faults
    0
    Test due
    0
    Next weekly test · 576.001-KA002
    Today at 07:10 · blocked automatically while AHU 360.001 is running.
    Damper register10 · polled every 5 min
    • 576.001-KA001
      Supply technical room · FC 1-1
      Open
    • 576.001-KA002
      Supply office 101 · FC 1-1
      Open
    • 576.001-KA003
      Supply meeting room 102 · FC 1-2
      Open
    • 576.001-KA004
      Extract office 105 · FC 1-3
      Open

Go deeper

Some modules have their own pages with more detail, articles and examples.

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