Demand Controlled Ventilation Overview

www.swegon.com

OVERVIEW

Demand-controlled ventilation

WISETM

Airborne climate system at the room, zone and system levels

CONDUCTORTM

Waterborne climate system at the room and system levels

GOLDTM

Air handling units at the system level

2 Swegon reserves the right to alter specifications.


An unoccupied room requires minimal ventilation and air conditioning.

Reduced impact on the climate is no longer just a pretty phrase and a set of objectives. Now people are making demands.

An important sub-demand for reducing the effects on the environment, and at the same time saving operating costs, is to reduce the power consumption of buildings.

In fact, our buildings account for 40% of the community’s total energy consumption. Here, there are enormous oppor-tunities for reducing energy consumption and operating costs – and in this way also reducing harmful impact on the Earth’s climate.

Demand-controlled ventilation involves ventilating and con-ditioning the air in a room precisely to meet our needs – no more and no less. The potential for savings is substantial, especially in premises where there is considerable variation between low and high load conditions in rooms and during times when there are few or no occupants – which is the case in many premises.

Swegon has products and systems for demand-controlled ventilation that conform to high standards of performance – a healthy indoor climate is paramount and no exceptions are acceptable. The products are also designed for renovation, which means that you can also reduce energy consumption in an existing building without extensively having to rebuild it.

This brochure gives an overview of our products and systems for demand-controlled ventilation. Detailed information is available for downloading at www.swegon.com or by con-tacting our representatives.

When the room is in use, ventilation and air condition-ing is controlled to meet the needs of the occupants.

The production of energy involves to a great extent the burning of fossil fuels and this has impact on the

earth’s climate. The way we consume energy may also have impact on the climate.

Therefore ever more stringent requirements are made on the power consumption of buildings.

The way to save both the environment and operating costs

3Swegon reserves the right to alter specifications.


System WISETM

Airborne climate system at the room, zone and system levels

Motor-driven dampers and active air diffusers with ►built-in sensors and intelligence at the room level

Motor-driven dampers with built-in intelligence at ►the zone level

The Super WISE communication unit at the system ►level, which also communicates with GOLD units and external supervisory systems

System CONDUCTORTM

Waterborne climate system at the room and system levels

Comfort modules and climate beams at the room ►level

Motor-driven dampers at the room level ►

Sensors for pressure, temperature and occupancy ►at the room level

The CONDUCTOR communication unit at the ►room level, which also communicates with Super WISE and external supervisory systems

Systems for demand-controlled ventilation

System GOLDTM

Air handling units at the system level

Energy-efficient air handling units at the system ►level with a large number of control functions well suited for demand-controlled ventilation:

- Pressure regulation of fans- Compensation for outdoor air temperature- Summer night cooling- Slave control of fans- Control of the supply flow temperature for cool-ing water and heating water



Room level

Typical examples for demand-controlled ventilation

Separate office room WISE

See page 5.

Separate office room CONDUCTORSee page 6.

Class room/Conference room

WISE See page 7.

Conference room CONDUCTORSee page 8.

Zone control is well-suited for larger systems with demand-controlled ventilation at the room level. The system is divided up into zones with intelligent zone dampers. The system will be stable since it can more quickly adjust to fluctuations in pressure caused by the variable airflows in the room.

See page 9.

Zone level

System level

Infrastruktur

System

Sub-system

Zone

Room

Product

(Spare) parts

Components

Infrastruktur

System

Sub-system

Zone

Room

Product

(Spare) parts

Components

Infrastruktur

System

Sub-system

Zone

Room

Product

(Spare) parts

Components

At the system level, you can gain full control of the entire ventila-tion system. This offers you optimal opportunities for achieving eco-nomical operation. The Super WISE communication unit is in contact with all the zone dampers and the room products, and it manages com-munication with the Swegon GOLD air handling units and with the most commonly used supervisory systems.

See page 10.



BenefitsEnergy-efficient operation since the room is venti- ►lated, heated and cooled exactly as called for by the load, neither more or less.

Free cooling can be utilised during a large part of ►the year.

High comfort and draught-free environment. ►

Fast and simple wiring (see page 14). ►

Separate office roomLow to normal cooling load

ConditionsRoom with normal heat load from lighting, computer equipment, per-sons and solar radiation from win-dows.

Varying number of occupants present.

SolutionDemand-controlled ventilation and cooling via active supply air diffuser. Control of radiator.

Components1. Active ADAPT Colibri supply air diffuser with integrated temperature sensor, presence detector, flow measurement and flow control via motor-driven damper

2. Valve actuator for radiator

3. Connection box (supplied with ADAPT Colibri)

4. Extract air via transfer air grille to the corridor, CGV/RGV for instance

Flow diagram

OperationThe presence detector integrated into the supply air diffuser con-trols the airflow in the room by opening or closing the motor-driven damper to the min. flow setting when the room is unoccupied and to the occupancy flow when the room is occupied.

The temperature sensor integrated into the supply air diffuser controls cooling by variably increasing the airflow from the occu-pancy flow to max. flow and heating by regulating valve actuators on radiators. When the room is unoccupied, the system allows the room temperature to rise or drop more than it would if the room was occupied, for saving energy.

The supply air diffuser and the connection box are interconnected via the modular cable supplied for fast and fault-free installation.

Communication with a main control system can take place via Modbus RTU.

�

Typical example, WISE

Infrastruktur

System

Sub-system

Zone

Room

Product

(Spare) parts

Components



Flow diagram

�

Separate office roomNormal to high cooling load

ConditionsRoom with high heat load from light-ing, computer equipment, persons and solar radiation from windows.

Varying number of occupants present.

SolutionDemand-controlled ventilation, cool-ing and heating via waterborne cli-mate solution and supply air dampers,

Components1. PARASOL comfort module with supply air, cooling and heating including valves, valve actuators and condensation sensor.

2. CRT supply air damper with integrated damper actuator

3. Cooling water and heating water

4. Wireless room thermostat with integrated temperature sensor

5. Presence detector

6. CONDUCTOR communication unit

7. Extract air via transfer air grille to the corridor, CGV/RGV for instance


The airflows can be preset for vacancy, occupancy ►and boost.

High comfort with provision for individual control. ►

Requires no separate heating system. ►

Unique operational and comfort advantages ►together with the All Year Comfort GOLD function.


Typical example, CONDUCTOR

Infrastruktur

System

Sub-system

Zone

Room

Product

(Spare) parts

Components

OperationThe control system continuously senses whether anyone is inside the room and adjusts the airflow and temperature according to the present situation.

When the room is unoccupied, the system lowers the room tem-perature to the min. flow setting while the room temperature is allowed to rise or drop more than it would if the room was occu-pied, for saving energy. When the room is occupied, the system changes over to the comfort setting with occupancy flow and tighter temperature regulation. The system can also start operating in the boosted flow mode in order to more quickly ventilate and air condition a room that has not been occupied. The boost flow can also be enabled automatically if the difference between the required and actual room temperature is substantial.

The set points can be individually adjusted from the room terminal.

The sensor and actuator can be interconnected to the wiring termi-nals of the communication unit for fast and fault-free installation.




Class room/Conference roomVaried air requirement and low to normal cooling load

Components1. ADAPT Damper (master) room control damper for extract air with integrated temperature sensor, air quality sensor, flow measurement and flow control via motor-driven damper

2. ADAPT Damper (slave) room control damper for supply air with integrated temperature sensor, flow measurement and flow control via motor-driven damper

3. Valve actuator for radiator


5. Connection box (supplied with the master damper)

6. Supply air diffuser that manages variable flows and high sub-temperature, LOCKZONE, COLIBRI and EAGLE Ceiling for instance

7. Extract air register, PELICAN Ceiling for instance

Flow diagram

�

�

OperationThe presence detector controls the airflow in the room by opening or closing the motor-driven dampers to the min. flow setting when the room is unoccupied and to the occupancy flow when the room is occupied. The extract air damper acts as the master damper and it slave-controls the supply air damper. The temperature sensor in the extract air damper controls the heat-ing by regulating the valve actuator of the radiator and cooling by variably increasing the airflow from the occupancy flow to max. flow. When the room is unoccupied, the system allows the room temperature to rise or drop more than it would if the room was occupied, for saving energy. The air quality sensor increases the airflow if the content of impurities in the air exceeds the preset set point.The supply air and extract air dampers and the sensor and valve actuators can be interconnected to the connection box, supplied, with modular connectors and wiring terminals for fast and fault-free installation. Communication with a main control system can take place via Modbus RTU.

BenefitsEnergy-efficient operation since the room is venti- ►lated and heated exactly as called for by the load, neither more or less.

Free cooling can be utilised during a large part of ►the year.

Ensured air quality via air quality sensor that detects ►volatile organic substances.

If you are renovating a building, the room control ►damper can be installed in a corridor, only the pres-ence detector is needed inside the room.


ConditionsClass room/conference room with varying load. High demands on air volume and air quality.

Varying number of occupants present and load.

SolutionDemand-controlled ventilation via room control damper. Control of radiators.


Infrastruktur

System

Sub-system

Zone

Room

Product

(Spare) parts

Components



Conference roomVaried air requirement and normal to high cooling load

Components1. Supply air diffuser with pressure sensor that manages VAV flows and high sub-temperature, LOCKZONE, COLIBRI and EAGLE Ceiling for instance

2. PARASOL comfort module with supply air, cooling and heating including valves, valve actuators, pressure sensor and condensation sensor.

3. Extract air register, PELICAN Ceiling with pressure sensor for instance



6. CRT extract air damper with integrated damper actuator

7. Cooling water and heating water

8. CONDUCTOR communication unit


10. CO2 sensor

11. Wireless room thermostat with integrated temperature sensor

Flow diagram

��


Economical cooling since free cooling can be utilised ►during a large part of the year. If this is not sufficient, the controller first increases the airflow and in the next step, it switches on waterborne cooling. The cooling sequence can also be selected with water-borne cooling first and, after that, increased airflow.

Very high comfort and air quality with provision for ►individual control.


ConditionsConference room irregularly occupied. High demands on air volume and tem-perature regulation under maximum load conditions.

Varying number of occupants present and load.

SolutionDemand-controlled ventilation via supply air diffuser supplemented with comfort module for cooling and heat-ing.

OperationThe presence detector controls the airflow in the room via the CRT (4 and 6) supply air and extract air dampers to the min. flow setting when the room is unoccupied and to the occupancy flow when the room is occupied.

The temperature sensor controls cooling and heating by regulating the CRT supply air damper (5) and by regulating the valve actuator in the PARASOL in sequence. In the cooling case, the airflow is first variably increased to the max. flow setting, after which the valve actuator opens the valve for water cooling or vice versa. When the room is unoccupied, the system allows the room temperature to rise or drop more than it would if the room was occupied, for saving energy. The CO2 sensor increases the airflow if the content of impu-rities in the air exceeds the preset set point.

The set points can be individually adjusted from the room terminal.

The sensor and actuator can be interconnected to the wiring termi-nals of the communication unit for fast and fault-free installation.


Typical example, CONDUCTOR

Infrastruktur

System

Sub-system

Zone

Room

Product

(Spare) parts

Components



Zone controlProvides stable and economical operation


Balanced ventilation at the room level1. CONTROL Damper zone damper with integrated damper actuator for supply air (pressure controlled)

2. Pressure sensor for CONTROL Damper zone damper, supply air

3. CONTROL Damper zone damper with integrated damper actuator for extract air (pressure controlled)

4. Pressure sensor for CONTROL Damper zone damper, extract air

5. Separate office room with active supply air diffuser/damper and extract air register/damper for balanced ventilation

6. Passive supply air diffuser in cloakroom for constant supply airflow

7. Passive extract air register in toilet group for constant extract airflow

Zone 1 Zone 2

Operation In a smaller ventilation system, the GOLD air handling unit man-ages the necessary pressure control Zone dampers that divide the system into smaller zones are required in larger systems. The zone dampers react much quicker to flow changes than they would if the air handling unit located centrally and in this way provides a stable ventilation system with fewer motor movements in the system.

No duct pressure is throttled away unnecessarily and the duct pressure can be kept as low as 40-60 Pa in the zone, with provides economical operation.

In the zone example above, we see that the zone dampers in the WISE system manage both a balanced solution (zone 1) and mixed solution (zone 2).

Central extract air and balanced ventilation at the room level1. CONTROL Damper zone damper with integrated damper actuator for supply air (pressure controlled)

2. Pressure sensor for CONTROL Damper zone damper, supply air

3. CONTROL Damper zone damper with integrated damper actuator central extract air in the corridor (pressure controlled)

4. Pressure sensor for CONTROL Damper zone damper, central extract air

5. SLAVE Control zone damper with integrated damper actuator extract air (slave-controlled by zone damper 1)

6. Conference room with active supply air diffuser/damper and extract air register/damper for balanced ventilation

7. Separate office room with active supply air diffuser and extract air register for outflow to the corridor

8. Passive supply air diffuser in cloakroom for constant supply airflow

9. Passive extract air register in toilet group for constant extract airflow

BenefitsQuickly adjusts to pressure fluctuations due to the ►variable airflows in the rooms.

No unnecessary throttling of duct pressure. ►

Low duct pressure in the zone; provides a quiet ►ventilation system and economical operation.

Infrastruktur

System

Sub-system

Zone

Room

Product

(Spare) parts

Components



System supervisionGives you complete control of the entire system

Typical example

Room

Zone

System

GOLD Super WISE

Typical webpage in Super WISE

BenefitsFull control of the entire ventilation system which ►offers potential for achieving optimal room comfort and operating economy.

Airborne and waterborne climate products can be ►combined.

Incorporated webpage with automatic configuration ►offers fast and simple installation and commissioning.

Logging of information facilitates follow-up and ►energy optimization.

Communication with the GOLD and the external ►supervisory system

CONTROL Damper zone dampers can be wired directly to Super WISE. If waterborne climate products with CONDUCTOR are

included in the system, communication takes place with Super WISE via a router.

External supervisory system

OperationThe Super WISE communication unit has contact with all the zone dampers and room products. Super WISE communicates with the GOLD air handling unit in order to minimise the pressure required in main ducts.

The webpage incorporated into the Super WISE is automatically configured and shows the system as a clear system file tree. Actual values and set points can be viewed and changed all the way down to the room level. Requires no other program other than an ordinary web browser (Internet Explorer, for instance).

Communication with external supervisory systems takes place via Modbus RTU/TCP or BACnet TCP.

Infrastruktur

System

Sub-system

Zone

Room

Product

(Spare) parts

Components

CONTROL Damper

Router



Air diffusers with active slot opening/damper ►Pressure-independent and cleanable ►Integrated presence detector, temperature sensor, flow ►measurement and flow controlAir quality sensor can be connected ►Simple wiring, Plug & Play ►Communication via Modbus RTU ►Supplied complete with connection box (to master air ►diffuser)

External control facilitiesRadiator, or cooling circuit valve (max. 3 actuators per ►master)Slaves air diffusers/registers (supply air or extract air, three ►diffusers)Lighting (via relay) ►

System WISETM

Product Overview

ADAPT Sphere ADAPT Free

ADAPT ExhaustADAPT Colibri

Active air diffusers

Motor-driven damper with controller for variable airflows ►Versions such as master or slave damper ►Integrated temperature sensor, Clean Air Control air qual- ►ity sensor, flow measurement and flow control (ADAPT Damper)

Communication via Modbus RTU ►Simple wiring: Plug and Play ►

External control facilities

Cooling circuit valve actuator and/or radiator valve ►

Slave damper, supply air or extract air ►

Lighting via external presence detector and lighting relay ►

CONTROL DamperZone control

ADAPT DamperRoom control

Damper products

Super WISECommunication unit for all the products in the WISE ►system, CONDUCTOR and GOLD air handling unit

Senses all the zone damper positions and gives the GOLD ►unit the lowest possible pressure set point

Manages the addition and subtraction of flows for up to ►80 zone dampers and 10 different zones

Automatically defines all the products in the system and ►generates a clear tree structure

Communication via webpage with provision for viewing ►and changing actual values and set points at the room, zone and system levels

Can communicate with a main control system via Modbus ►RTU/TCP or BACnet TCP

Infrastruktur

System

Sub-system

Zone

Room

Product

(Spare) parts

Components

Supplied integrated into the cubicle with 24 V transformer

and wiring terminals

Super WISE



System CONDUCTORTM

Product Overview

Comfort modules

Communication unit

PARASOL

Comfort module for cooling, heating and ventilation ►Designed for hotel rooms and hospital wards ►Variant for rear edge installation in office rooms ►Adjustable vertical and horizontal air discharge direction ►Low installation height ►High capacity ►Simple Installation ►Closed system ►

Comfort module for cooling, heating and ventilation ►4-way air discharge ►Adjustable air discharge direction along each side ►Adjustable airflow along each side ►Very high capacity ►For flush or suspended mounting. ►Two sizes, several capacity variants ►

PARAGON

Communication unit for room control of valve actuators in ►comfort modules and supply air dampers in branch ducts

Manages up to 12 pairs of actuators ►

Control of temperatures, air quality, condensation moni- ►tor, window contact, key card

An air/water or water/air cooling sequence can be ►selected

Communicates with a main control system via Modbus ►RTU

Communicates with Super WISE via router ►

Wirelessly configurable via the room terminal ►

CONDUCTOR

Motor-driven branch damper at the room level ►

Sensors for pressure, temperature and occupancy at ►the room level

Wireless room terminal ►

Control equipment

CRT Branch damper

Presence detector

Infrastruktur

System

Sub-system

Zone

Room

Product

(Spare) parts

Components

Room terminal



GOLD CX with coil heat exchangers

GOLD RX with rotary heat exchanger

GOLD PX with plate heat exchanger

System GOLDTM

Air handling units

Product Overview

Energy-efficient air handling units with built-in control ►equipment and communication

Low energy fans with newly developed EC technology ►that manage large flow ranges with maintained efficiency

Efficient heat recovery ►A large number of control functions of which the follow- ►ing are well-suited for demand-controlled ventilation:- Pressure regulation of fans- Compensation for outdoor air temperature- Summer night cooling- Slave control of fans- Control of the supply flow temperature for cooling water and heating water via the All Year Comfort func-tion.

Communication with all established communication ►interfaces

A complete range of accessories such as cooling units, air ►coolers, air heaters and a recirculation section.

Simple installation and wiring: Plug and Play ►

Infrastruktur

System

Sub-system

Zone

Room

Product

(Spare) parts

Components



Fast and simple installation

The CONNECT Adapt connection box is included for each master air diffuser/register and master damper in the WISE system.

The air diffusers/registers are connected to modular contacts, other products to screw wiring terminals. The connec-tion box makes installation in the room simple and ensures faultless wiring.

System WISE

System CONDUCTOR

The products in the CONDUCTOR system can be wired to wiring terminals and modular contacts on the CONDUCTOR communication unit. The room terminal is wireless.

CONNECT Adapt



Detailed information and complete typical examples can be obtained in the product datasheet of the relevant product and in

the "WISE System Technology" documenta-tion available at www.swegon.com.

Swegon’s system for demand-controlled ventilation offers the following features:

Simple project design and planning, and high ►flexibility

Fast and simple installation and commissioning ►Economical operation with high comfort ►

EN-D

CV

Ove

rvie

w 2

010-

01-2

0

www.swegon.com

Documents

Demand Controlled Ventilation Overview