Energy-efficient room automation

with EN 15232 and VDI 3813

2 www.spega.com

DD

C

B

A

CB

A

DC

B

A

Manual on/off switch

Manual

–

––

–

Manual on/off switch with additional sweeping extinction signal

Automatic

Automatic detection Switching off the lighting in the event of non-occupancy eliminates energy use in unoccupied rooms .

Reduction in the luminous flux of artificial lighting to the required minimum .

- Presence detection- Occupancy evaluation- Automatic lights- Light actuator

- Brightness measurem .(indoor)- Constant-light control- Light actuator (dimmable)

- lumina MS3 (mini)- lumina MS/RC- all e .control light actuators

- lumina MS3 (mini)- lumina MS/RC- lumina(R)DALx- lumina (R)ST4- lumina RDAx-UN

0

1

2

0

1

5.1 Occupancy control

5.2 Daylight control

BAC Eff.Class

BAC Eff.Class

Energy savings

Energy savings

VDI 3813-2 functions

VDI 3813-2 functions

Suitable spega devices

Suitable spega devices

Office

Office

Scho

ol

Scho

ol

Hotel

Hotel

Manual operation –

–Motorized operation with manual control

–Motorized operation with automatic control

Combined control of lighting, blind and HVAC system

Maximisation of daylight penetration by means of slat tracking mini-mises the proportion of artificial lighting, energy-optimised control of the solar energy inputs relieves the heating and cooling system .

- Brightness measurem . (outdoor)- Automatic solar control- Sunshade actuator

- Brightness measurem . (outdoor)- Temperature measurem .(indoor)- Slat tracking control- Shadow correction- Automatic thermal control- Sunshade actuator

- ombra W2- ombra W8 with ombra W7-C- all e .control Sunblind actuators

- ombra W2- ombra W8 with ombra W7-C- ombra BST- lumina MS/RC with dialog RC-T(S)- all e .control Room operat . panels- all e .control Sunblind actuators

0

1

2

3

6 Blind control

e.controlTM - energy efficiency for lighting and sunblinds

The European standard EN 15232 sets the standard for building automation, specifying for the first time a list of room and build-ing automation and management methods which influence the energy efficiency of buildings. Moreover, these are divided into four efficiency classes in order ensure a reasonable minimal functionality in accord-ance with building contractors’ requirements.

Whereas efficiency class C requires just the legal minimum standards to be met without any specific energy-saving automa-tion, class B already requires the use of energy-efficient room automation functions for all systems (heating, cooling, ventilation, lighting and sunblinds). This is reasonable insofar as an increase in energy efficiency is primarily achieved by controlling the usage of energy, i.e. within the rooms. Only in this way can waste energy, which is the

result of energy output which is not adapted to utilisation requirements, be effectively ruled out. For this reason, room automation in Green Buildings is of immense impor-tance and is explained in greater detail in the tables below.

The first two columns contain the room automation-related methods detailed in EN 15232 and which refer to lighting, sunblind, heating and cooling systems as well as room climate control systems.The third column, also from this standard, shows the efficiency class which can be achieved with one method.The next column describes by which means energy savings are achieved. Column 5, “VDI 3813-2 Function” is par-ticularly important for the planning of room automation systems, as it provides the link to the room automation functions described

in the directive VDI 3813-2. The 3 follow-ing tables show which methods can be used efficiently in which type of building.The last column lists the e.control devices – and combinations thereof, which fulfil the requirements of the respective method and thus the required room automation functions.

For the lighting system, the combination of an e.control multisensor and dimmable light actuators of series R or M meets the highest efficiency class A. In the case of the sun-blinds, class A is achieved by using ombra BST slat tracking controller in combination with any number of e.control sunblind actuators and an e.control room climate controller (automatic thermal control).

e.controlTM functionalityEnergy efficiency according to EN 15232

3

DC

B

A

DC

B

A

DC

B

A

DDC

B

A

e.controlTM - energy efficiency for heating and cooling

No automatic controlCentral automatic control

No automatic control

No automatic control

No interlock

–

–

–

–

–

–

–

–

–

Individual room control by thermostatic valves or electronic controller

Automatic control with fixed time program

Outside temperature compensated control

Partial interlock

Individual room control with communication between controllers and to BACS

Automatic control with optimum start

Automatic control with demand evaluation

Demand based control

Total interlock

Communication allows the use of time programs for reduction in the event of non-use . Centralised control is also possible .

The latest possible heating-up time reduces supply losses in the morning .

Acknowledgement of the effective loads of the individual room controllers reduces the distribution losses to a mini-mum by adopting the tempera-ture to the effective demand .

Reliable prevention of simul-taneous heating and cooling energy output with the effect of neutralisation .

- Time program- Setpoint calculation- Energy mode selection- Temperature control- (Window monitoring)

- Time program- Energy mode selection- Start optimisation

- Function selection

- nova / clima RO (-CC / -FC)- nova / clima RCM (-CC / -FC)- nova / clima LCD (-CC)- dialog 1 / dialog 8- tactio S / tactio L- all e .control actuators

- nova / clima RO (-CC / -FC)- nova / clima RCM (-CC / -FC)- nova / clima LCD (-CC)- dialog 1 / dialog 8- tactio S / tactio L- lumina MS/RC with dialog RC-T(S)

- nova / clima RO (-CC / -FC)- nova / clima RCM (-CC / -FC)- nova / clima LCD (-CC)- dialog 1 / dialog 8- tactio S / tactio L- lumina MS/RC with dialog RC-T(S)

Integrated individual room control including demand control (by occupancy sensors)

Automatic occupancy sensing leads to a further minimisation of supply losses in the event of total non-occupancy .

- Presence detection- Occupancy evaluation- Time program- Setpoint calculation- Energy mode selection- Temperature control- (Window monitoring)

- Room operation panels as above with lumina MS3 (mini) - lumina MS/RC with dialog RC-T(S)– all e .control actuators

0 12

3

4

0

1

2

3

0 1

2

0

1

2

1.1/3.1 Emission control

1.5/3.5 Intermittent control of emission

1.3/3.3 Control of distribution network water temperature

3.6 Interlock between heating and cooling control of emission

BAC Eff.Class

Energy savings VDI 3813-2 functions Suitable spega devicesOffice

Scho

ol

Hotel

To achieve energy efficiency class B or A for cooling and heating systems, all e.control room control devices with integrat-ed room climate controller can be used, as the latter already comprises all the necessary functions in accordance with VDI 3813. For class A an e.control multisensor, which facilitates the switch-over between energy

modes based on the actual occupancy, is also used. When selecting the lumina MS/RC radio-controlled multisensor, into which even the room climate controller is inte-grated, class A is already achieved when used in conjunction with a dialog RC-T(S) radio-controlled temperature sensor.

- Load optimisation - nova / clima RO (-CC / -FC)- nova / clima RCM (-CC / -FC)- nova / clima LCD (-CC)- dialog 1 / dialog 8- tactio S / tactio L- lumina MS/RC with dialog RC-T(S)

Time-based heating to standby setpoint, heating-up to comfort setpoint only on presence .

same as above, plus:- Presence detection- Occupancy evaluation

4 www.spega.com

DCB

A

DCB

A

e.controlTM - energy efficiency for ventilation and air conditioning

No automatic controlTime controlPresence control

Demand control

No control

–

–

–

–

- Time program

Night coolingFree cooling

Reduction in volumetric rate of flow in the event of non-occupancy reduces the power required by the fans .

The use of night air for discharging the thermal mass of the building without using power for cooling .

- Presence detection- Occupancy evaluation- Air quality control- Control drive actuator- (Window monitoring)

- Temperature measurement (indoor/outdoor)- Function selection- Night-time cooling

- nova / clima RO (-CC / -FC)- nova / clima RCM (-CC / -FC)- nova / clima LCD (-CC)- dialog 1 / dialog 8- tactio S / tactio L- lumina MS3 (mini)- lumina MS/RC- clima (R)AAx-10V- clima (R)AA8-MP

- nova / clima RO (-CC / -FC)- nova / clima RCM (-CC / -FC)- nova / clima LCD (-CC)- dialog 1 / dialog 8- tactio S / tactio L- lumina MS/RC with dialog RC-T(S)- ombra W2- ombra W8 with ombra W7-C

Demand-based control of the volumetric rate of flow according to the air quality reduces the required power to a minimum .

- Air quality measurement- Presence detection- Occupancy evaluation- Air quality control- Control drive actuator- (Window monitoring)

- devices as above

0 12

3

0

12

4.1 Air flow control at room level

4.5 Free mechanical cooling

To ensure energy efficiency in ventilation and air conditioning control, the volumetric air flow must be adjusted by means of the room occupancy sensor (class B) or air quality measurement sensor (class A) in the case of mechanical ventilation. In the first instance, an e.control multisensor provides

the required sensor technology. The control algorithms for adjusting the air flaps and for free night cooling are already integrated into the room climate controller of the e.control room control device, which is used for heating and cooling. The e.control MP bus controller, in addition to the R or M

series analogue output modules, is especial-ly suited for controlling the air volume flaps as it evaluates not only the actuators but the air quality sensors required for class A.

BAC Eff.Class

Energy savings VDI 3813-2 functions Suitable spega devicesOffice

Scho

ol

Hotel

e.controlTM functionalityEnergy efficiency according to EN 15232

spelsberggebäudeautomation gmbhzechenstr . 7047443 moers germanyfon: +49 (2841) 88049-0fax: +49 (2841) 88049-49e-mail: info@spega .cominternet: www .spega .com