Energy Efficient Room Automation with EN15232 ... - Slaney Direct Ltd

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Energy Efficient Room Automation with EN15232 ... - Slaney Direct Ltd

Energy-efficient room automation

with EN 15232 and VDI 3813


e.control TM functionality

Energy efficiency according to EN 15232

e.control TM - 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 building

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 accordance

with building contractors’ requirements.

Whereas efficiency class C requires just

the legal minimum standards to be met

without any specific energy-saving automation,

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 importance

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 particularly

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 following

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 sunblinds,

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).

5.1 Occupancy control

0 Manual on/off switch

1 Manual on/off switch with additional

sweeping extinction signal

2 Automatic detection

BAC Eff.

Class

D

C

B

A




Energy savings

Switching off the lighting in the

event of non-occupancy

eliminates energy use in

unoccupied rooms.

VDI 3813-2 functions

- Presence detection

- Occupancy evaluation

- Automatic lights

- Light actuator

Office

School


Hotel

Suitable spega

devices

- lumina MS3 (mini)

- lumina MS/RC

- all e.control light actuators

5.2 Daylight control

0 Manual

1 Automatic

C

B

A


Reduction in the luminous flux of

artificial lighting to the required

minimum.

- Brightness measurem.(indoor)

- Constant-light control

- Light actuator (dimmable)


- lumina MS3 (mini)

- lumina MS/RC

- lumina(R)DALx

- lumina (R)ST4

- lumina RDAx-UN

BAC Eff.

6 Blind control

Class

0

1

Manual operation

Motorized operation with manual

control

D

D



2 Motorized operation with automatic C –

control

3

Combined control of lighting,

blind and HVAC system

2 www.spega.com

B

A

Energy savings

Maximisation of daylight penetration

by means of slat tracking minimises

the proportion of artificial

lighting, energy-optimised control

of the solar energy inputs relieves

the heating and cooling system.

VDI 3813-2 functions

- Brightness measurem. (outdoor)

- Automatic solar control

- Sunshade actuator

- Brightness measurem. (outdoor)

- Temperature measurem.(indoor)

- Slat tracking control

- Shadow correction

- Automatic thermal control

- Sunshade actuator


Office

School

Hotel

Suitable spega

devices

- 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


e.control TM - energy efficiency for heating and cooling

To achieve energy efficiency class B or

A for cooling and heating systems, all

e.control room control devices with integrated

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

1.1/3.1 Emission control

0 No automatic control

1 Central automatic control

2 Individual room control by

thermostatic valves or electronic

controller

3

4

Individual room control with

communication between controllers

and to BACS

Integrated individual room control

including demand control

(by occupancy sensors)

1.3/3.3 Control of distribution network water temperature

0 No automatic control

D –

1 Outside temperature compensated C –

control

2 Demand based control

Acknowledgement of the

B

effective loads of the individual

room controllers reduces the

A distribution losses to a minimum

by adopting the temperature

to the effective demand.

3.6 Interlock between heating and cooling control of emission

0

1

No interlock

Partial interlock

D

C



D

D

C

1.5/3.5 Intermittent control of emission

0 No automatic control

D

1 Automatic control with fixed time

program

2 Automatic control with optimum

start

C

B

3

2

Automatic control with demand

evaluation

Total interlock

BAC Eff.

Class

B

A

A

B

A

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 integrated,

class A is already achieved when

used in conjunction with a dialog RC-T(S)

radio-controlled temperature sensor.




Communication allows the use

of time programs for reduction

in the event of non-use.

Centralised control is also

possible.

Automatic occupancy sensing

leads to a further minimisation

of supply losses in the event of

total non-occupancy.



Energy savings VDI 3813-2 functions Suitable spega

devices

The latest possible heating-up

time reduces supply losses in the

morning.

Time-based heating to standby

setpoint, heating-up to comfort

setpoint only on presence.

Reliable prevention of simultaneous

heating and cooling

energy output with the effect of

neutralisation.

- Time program

- Setpoint calculation

- Energy mode selection

- Temperature control

- (Window monitoring)

- Presence detection

- Occupancy evaluation

- Time program

- Setpoint calculation

- Energy mode selection

- Temperature control

- (Window monitoring)

- Time program

- Energy mode selection

- Start optimisation

- Function selection

Office

School

Hotel





- 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

- Room operation panels as

above with lumina MS3 (mini)

- lumina MS/RC with dialog RC-T(S)

– all e.control actuators

- 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)

same as above, plus:

- Presence detection

- Occupancy evaluation

- 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)

3


e.control TM functionality

Energy efficiency according to EN 15232

e.control TM - energy efficiency for ventilation and air conditioning

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 especially

suited for controlling the air volume flaps

as it evaluates not only the actuators but the

air quality sensors required for class A.

4.1 Air flow control at room level

0 No automatic control

1 Time control

2 Presence control

3

Demand control

BAC Eff.

Class

D

C

B

A

Energy savings VDI 3813-2 functions Suitable spega

devices



Reduction in volumetric rate

of flow in the event of nonoccupancy

reduces the power

required by the fans.

Demand-based control of the

volumetric rate of flow

according to the air quality

reduces the required power to

a minimum.

- Time program

- Presence detection

- Occupancy evaluation

- Air quality control

- Control drive actuator

- (Window monitoring)

- Air quality measurement

- Presence detection

- Occupancy evaluation

- Air quality control

- Control drive actuator

- (Window monitoring)



Office

School

Hotel


- 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

- devices as above

4.5 Free mechanical cooling

0 No control

1

2

Night cooling

Free cooling

D

C

B

A



The use of night air for

discharging the thermal mass

of the building without using

power for cooling.

- 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 MS/RC with dialog RC-T(S)

- ombra W2

- ombra W8 with ombra W7-C

4 www.spega.com


Your local spega partner:

spelsberg

gebäudeautomation gmbh

zechenstr. 70

47443 moers

germany

fon: +49 (2841) 88049-0

fax: +49 (2841) 88049-49

e-mail: info@spega.com

internet: www.spega.com

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