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Office

Efficiency factor for thermal energy School

Hotel

0.70

0.80

0.68

0.88

0.85

1

1

1.20

1.31

The following diagram shows the differences in energy consumption for three building types in the energy efficiency classes A, B and D relative to the basis values in rating C. For example, by using class A, 30 % of the thermal energy can be saved in offices.

Building Automation and Control (BAC) efficiency classes to EN 15232

Standard BACS A B Advanced BACS and TBM C D Non energy efficient BACS High energy performance building automation and control system (BACS) and technical building management (TBM)

0.80

1

1.51

Office

School

Hotel

0.87

0.86

0.90

0.93

0.93

0.95

1

1

1

1.10

1.07

1.07

Efficiency factor for electrical energy

Function list and assignment to energy performance classes (section from table 1 of the EN 15232:2007 [D])

A

Heating / Cooling control

  • Individual room control with communication between controllers

  • Indoor temperature control of distribution network water temperature

  • Total interlock between heating and cooling control

Ventilation / Air conditioning control

  • Demand or presence dependent air flow control at room level

  • Variable set point with load dependant compensation of supply temperature control

  • Room or exhaust or supply air humidity control

Lighting

  • Automatic daylight control

  • Automatic occupancy detection manual on / auto off

  • Automatic occupancy detection manual on / dimmed

  • Automatic occupancy detection auto on / auto off

  • Automatic occupancy detection auto on / dimmed

Sun protection

  • Combined light/blind/

HVAC control

B

  • Individual room control with communication between controllers

  • Indoor temperature control of distribution network water temperature

  • Partial interlock between heating and cooling control (dependent on HVAC system)

  • Time dependent air flow control at room level

  • Variable set point with outdoor temperature compensation of supply temperature control

  • Room or exhaust or supply air humidity control

  • Manual daylight control

  • Automatic occupancy detection manual on / auto off

  • Automatic occupancy detection manual on / dimmed

  • Automatic occupancy detection auto on / auto off

  • Automatic occupancy detection auto on / dimmed

  • Motorized operation with

automatic blind control

C

  • Individual room automatic control by thermostatic valves or electronic controller

  • Outside temperature compensated control of distribution network water temperature

  • Partial interlock between heating and cooling control (dependent on HVAC system)

  • Time dependent air flow control at room level

  • Constant set point of supply temperature control

  • Supply air humidity limitation

  • Manual daylight control

  • Manual on/off switch + additional sweeping extinction signal

  • Manual on/off switch

  • Motorized operation with

manual blind control

D

  • No automatic control

  • No control of distribution network water temperature

  • No interlock between heating and cooling control

  • No air flow control at room level

  • No supply temperature control

  • No air humidity control

  • Manual daylight control

  • Manual on/off switch + additional sweeping extinction signal

  • Manual on/off switch

  • Manual operation for blinds

2CDC 500 060 M0201 7

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