Topvex – air handling units Optimal air quality where you spend most of your time

Fans | Air Handling Units | Air Distribution Products | Fire Safety | Air Conditioning | Air Curtains and Heating Products | Tunnel Fans

Fans | Air Handling Units | Air Distribution Products | Fire Safety | Air Curtains and Heating Products | Tunnel Fans

AIASEfficient Demand Controlled Ventilation System

2 | AIAS - Efficient Demand Controlled Ventilation AIAS- Efficient Demand Controlled Ventilation | 3 3 | Systemair

AIAS A revolution in demand controlled ventilation !

Introduction

AIAS is a pre-programmed, easy configurable and oper-able control system for optimizing the energy consump-tion in demand oriented building ventilation systems with VAV controllers.

Also other ventilation system parameters like system static pressure, noise in the duct, on the control and terminal ventilation elements face remarkable improve-ment by optimizing functionality of AIAS.

Demand Controlled Ventilation adjusts the level of air to the room’s actual needs. This means that a high indoor climate quality can be achieved at the same time as ener-gy consumption is kept to a minimum.

AIAS- optimise your system

The demand controlled ventilation is a powerful instrument to influencemany aspects of room climate qual-ity like temperature, humidity, CO2 or particles content and others. For many years our customers and we could experience these quality ben-efits in public buildings, offices, sport halls, hospitals, schools etc. Tradi-tionaly high room air quality was achieved through demand oriented VAV-systems.

Systemair always stands for quality,as well for efficiency. With our new AIAS system, we will boost the ef-

ficiency of your demand oriented climate control to a higher level.

Spend only as much energy as it is required to produce high quality air to meet ventilation demands of the rooms at every moment. Spend only as much of financial resources, engineering, installations, automa-tion and maintenance, to meet the demand on high efficient automatedcontrolled ventilation system.

Meet AIAS.

How It Works

The AIAS system consists of 4 components

AIAS ‘Combox”

Mobile configuration & commissioning display

AIAS Remote I/O modul 16X AI

AIAS Room controller

The central piece of the AIAS optimizing system is the AIAS “combox”. It coordinates the operation of air handling unit with all the individual room control ele-ments by a tailored digital control solution. Each AIAS “combox” can manage up to 30 individual room VAV-control loops, each can con-tain appx. 10 data points.

The RIO module is used for additional measurement of analog values if required by the system. The unit communicates the values via ExoLine data bus to the AIAS “Combox”.

Directly connected to AIAS “com-box” is the pocket display module, enableing access to the system configuration and variables for reading and editing directly at site.

Directly connected to AIAS “combox” is the pocket display module, enableing access to the system con-figuration and variables for reading and editing directly at site.

1

2 4

3

4 | AIAS - Efficient Demand Controlled Ventilation AIAS- Efficient Demand Controlled Ventilation | 5

AIAS Easy linkage for optimised ventilation.

System Characteristics Both commissioning and in-service monitoring is easy with the unique smart functions and integrated web server. Good room comfort is combined with optimal operating economy. The supply air temperature is adjust-ed to reduce the need for exter-nal heating and cooling air flow.

FunctionsThe operation principle of AIAS is calculating controllingthe optimal fan power according to the operation valuesof the VAV controllers. The system covers exactly thehighest ventilation air demand interpreted by VAVcontrollers not exceeding the lowest possible fan powerto meet this demand.

CommissioningThe minimal configuration of AIAS system is based on one central control unit called AIAS-Combox. It is a

compact DDC-controller with pre-programmed functional blocks for optimizing ventilation system energy con-sumption. It communicates with VAV and room control-lers via bus on Exoline and Modbus protocols and so it can be integrated into superior BMS. Such configuration is able to operate in systems with up to 30 VAV devices individually controlling rooms or zones connected to one air handling unit with variable fan speed control. Each space can be operated by a supply and an extract VAV with app. 10 data-points (measurement and control vari-ables) processed by AIAS.

The configuration can be extended by adding next AIASCombox units each for additional up to 30 VAV devicesconnected to the same AHU. So the configuration canbe scaled up to virtually unlimited number. The real limitation is the number of rooms aerated by the same AHU. The master AIAS Combox tops the chain of con-trol signals from all slave units. It generates the power control signals for the supply and extract fan. Any AHU or ventilation fan can be controlled by AIAS if it has con-tinuous output power control modulated by the control signal DC 0-10V.

The system can operate also with VAV devices that can-not communicate by bus protocol. Therefore a remote I/O module - AIAS-RIO with analog inputs for reading the VAV feedback signals is available. This opens possibilities to optimize also older or simpler ventilation VAV systems by AIAS.

• Operability with any air handling unit or fan system with continuous fan power control by DC 0-10V signal

• Separate fan power optimization for the supply fan and for the exhaust fan by a single AIAS “Combox” cen-tral control unit.

• Up to 30 separate rooms or zones with VAV control, eachwith up to 10 operation variables can be connected by bus communication to a single AIAS “Combox” central control unit and participate in optimized operation of the corresponding air handling unit.

• Virtually unlimited number of AIAS “Combox” central control units can be connected in cascade in order to op-timizeoperation of of the corresponding air handling unit.

• Reducton of fan power to a minimum, that just can cover the ventilation demand. Thereby saving of electri-cal energy and air quality processing energies (heating, cooling etc.)

• Minimizing the static air pressure in the duct to a level that just can cover the ventilation demand.

• Minimizing the pressure loss and noise generation on the VAV-dampers by operation in possibly most open position due to minimized duct pressure.

• Easy system build-up.

• Easy system configuration and start-up via display menu.

• Open system architecture for subsequent expansion and integration.

• Integration of both, analog- and bus-communicating VAV controllers, retrofit ability.

• Operation with overrides and interlocks like fire alarms, heat/cool change-over, free cooling etc.

• Calendar/time schedule dependent operation.

• Alarm handling, messaging and acknowledging with priority levels.

• Recording functionality.

• Web interface, remote mamagement.

6 | AIAS - Efficient Demand Controlled Ventilation AIAS- Efficient Demand Controlled Ventilation | 7

1

2

3

4

AIAS Examples of room & zone solutions

6 / 10 | AIAS - Efficient Demand Controlled Ventilation

AIAS – typical system topologies

LEGEND

ModBus RTU (bus) Analog or binary signal

ExoLine (bus) AC24V

Room control unit Sensor / transmitterCO2, humidity, etc.

Window contact Occupation switch

VAV controller Heating / cooling control actuator

AIAS Combox

SP e

xtra

ct fa

nSP

sup

ply

fan

AHU

Room 2 Room 15Room 1 ...

...

...Individual room control (IRC), supply and extract VAV controllers with Modbus communication.

Up to 30 VAVs / Up to 15 rooms

AIAS - Efficient Demand Controlled Ventilation | 7 / 10

...

...

...

Room 1 Room 8 Room 9 ... Room 14

...

...

SP e

xtra

ct fa

nSP

sup

ply

fan

AHU

AIAS Combox RIO-module 16xAI RIO-module 16xAI

AIAS Combox

SP e

xtra

ct fa

nSP

sup

ply

fan

AHU

Room 2Room 1 Room 15...

...

...

RIO-module 16xAI

Individual room control (IRC), supply and extract VAV controllers with analog feed-back signal.

Up to 30 VAVs / Up to 15 rooms

Individual room control (IRC), supply and extract VAV controllers with Modbus communication (1, ...15) and with analog feed-back signal (room 2).

Up to 30 VAVs / Up to 15 rooms

AIAS - Efficient Demand Controlled Ventilation | 7 / 10

...

...

...

Room 1 Room 8 Room 9 ... Room 14

...

...

SP e

xtra

ct fa

nSP

sup

ply

fan

AHU

AIAS Combox RIO-module 16xAI RIO-module 16xAI

AIAS Combox

SP e

xtra

ct fa

nSP

sup

ply

fan

AHU

Room 2Room 1 Room 15...

...

...

RIO-module 16xAI

Individual room control (IRC), supply and extract VAV controllers with analog feed-back signal.

Up to 30 VAVs / Up to 15 rooms

Individual room control (IRC), supply and extract VAV controllers with Modbus communication (1, ...15) and with analog feed-back signal (room 2).

Up to 30 VAVs / Up to 15 rooms

8 / 10 | AIAS - Efficient Demand Controlled Ventilation

Individual room control (IRC) supply VAV controllers with Modbus communication.

Zone control extract VAV with analog feed-back signal and supply flow measurement.

Up to 29 VAVs in 29 rooms, 1 VAV in zone extract.

Room 1

AIAS Combox

SP e

xtra

ct fa

nSP

sup

ply

fan

AHU

RIO-module 16xAI

Room 29

Optima RM

Optima-BLC4

...

...

...

8 | AIAS - Efficient Demand Controlled Ventilation

5

AIAS - Efficient Demand Controlled Ventilation | 9 / 10

SUPP. EXH.

Room 1

SUPP. EXH.

Room 2

SUPP. EXH.

Room 15

SP extract fanSP supply fan

SP e

xtra

ct fa

nSP

sup

ply

fan

AHU

SUPP. EXH.

Room 16

SUPP. EXH.

Room 17

SUPP. EXH.

Room 30

AIAS Combox

SUPP. EXH.

Room 31

SUPP. EXH.

Room 32

SUPP. EXH.

Room 45

AIAS Combox

SP e

xtra

ct fa

nSP

sup

ply

fan

SP e

xtra

ct fa

nSP

sup

ply

fan

...

...

...

...

...

...

...

...

...

...

...

...

...

...

...

AIAS Combox

Individual room control (IRC), supply and extract VAV controllers, more than 30 VAV devices on one AHU.

The AIAS Comboxes are connected to the chain by analog setpoint signals (1 for supply, 1 for extract fan).

Each Combox compares own calculated setpoints with SP from Combox lower in the chain. The higher SP from this comparison passes to the Combox higher in the chain. So the Combox highest in the chain sends the highest setpoints of all to the supply and extract fan.

6 / 10 | AIAS - Efficient Demand Controlled Ventilation

AIAS – typical system topologies

LEGEND

ModBus RTU (bus) Analog or binary signal

ExoLine (bus) AC24V

Room control unit Sensor / transmitterCO2, humidity, etc.

Window contact Occupation switch

VAV controller Heating / cooling control actuator

AIAS Combox

SP e

xtra

ct fa

nSP

sup

ply

fan

AHU

Room 2 Room 15Room 1 ...

...

...Individual room control (IRC), supply and extract VAV controllers with Modbus communication.

Up to 30 VAVs / Up to 15 rooms

AIAS Typical system topologies

The straight choice for good indoor climate at low energy cost!!

ENERGYEXPERTISEENVIRONMENT

IPSUM from Fläkt Woods

The straightforward choice for good indoor climate and low energy costs

the Lcc calculates it all

In our industry we use the life cycle cost analysis method when we design ventilation systems. This balances the additional costs of bet-ter components and more intelligent system control against savings on mainte-nance and energy over the service life of the system. Unsurprisingly a more in-telligent system is a better investment. About 85% of the life cycle cost is made up of energy costs, 10% is the purchase price and 5% is maintenance.

FOR PROPERTy OWNERS

• SystemoptimisationminimizesoperatingcostandCO2 footprint

• Singlesupplierforallyourclimatesystems

• Abuilt-inwebinterfaceforcompleteclimatemanagementandenergymonitoring

• CanusethebuildingsexistingEthernetnetwork

FOR INSTALLATION/COMMISSIONING ENGINEERS

• Automaticfault-tracing

• Smartfunctionsfacilitatecommissioning

• Balancingmodethatreturnstonormalmodeautomatically

• Batchprocessfunctiontomakechangestomultiplepartsofthesysteminoneaction

FOR CONSULTANTS

• Acosteffectivesystemforlowenergycosts

• FläktWoodseQ/e3coStar air Handling Units provide maximum IPSUM functionality

• Usesopencommunicationprotocols

• Simplebutflexiblesystemlayout/selection

co

St

tIME

■ Energy 85 %■ Purchase price 10 %■ Maintenance 5 %

SavIngS

Save energy, money and the environment with Fläkt Woods

Energy optimisation is an important aspect of ventilation and is regarded as Fläkt Woods' specialty. We use e3 to mark products and solutions that are particularly effective. They serve a dual purpose, saving both the environ-ment and your long-term economy.

www.flaktwoods.com/energy

For property owners• System optimisation minimizes operating cost and CO2 footprint• Single supplier for all your climate systems• IP connect available• Can use the buildings existing Ethernet network

For consultants• A cost effective system for low energy costs• Systemair Air Handling Units provide maximum AIAS functionality• Uses open communication protocols• Simple but flexible system layout/selection

For installation/COMMISSIONING engineers• Automatic fault-tracing• Smart functions facilitate commissioning• Balancing mode that returns to normal mode automatically• Batch process function to make changes to multiple parts of the system in one action

4 / 52 | Mriežky a Výustky

Syst

emai

r 0

3 /

2014

www.systemair.com

Syst

emai

r 0

1/20

16