User Manual

73
AUTOMATIC CONTROL
7 TECHNICAL HOME AND BUILDING
MANAGEMENT
BT Reason for energy savings
7.2 Manual setting room by room individually
Adaptation of system/plant operating hours
according to given time schedule and/or calendar
0
Manual setting (plant enabling) Often such plants are turned on at a reasonable
time, but often are operating for unnecessarily
long time, because they are not switched off
based on demand. This results in unnecessary
high energy consumption.
1
Individual setting following a predefined schedule
including fixed preconditioning phases
With a predefined time schedule the situation
regarding switching off (see 0) will be improved.
The fixed time definitions and the fixed
preconditioning phases however lead to the
plant being in operation even though it would not
(yet) be necessary from a demand perspective.
2
Individual setting following a predefined time
schedule; adaptation from a central room (e.g.
work station, web operation; room operating units
are excluded); variable preconditioning phases
With this a better adjustment to the demand
situation will be achieved and the plant mostly
will only be in operation if it is required.
7.3 Detecting faults of technical building systems and
providing support to the diagnosis of these faults
1
0
No central indication of detected faults and
alarms
Faults and alarms very often are detected too
late or not at all which leads to an unnecessary
high energy consumptions until they are
detected/fixed.
1
With central indication of detected faults and
alarms
With this faults and alarms will be indicated at a
central location. The diagnosis depends on the
capabilities/availabilities of the technical
personnel. This often leads to delays in fixing
them and with that to unnecessary high energy
consumption until the fault situation gets fixed.
2
With central indication of detected faults and
alarms including diagnosing functions
With this faults and alarms will be indicated at a
central location and the technical personnel
have diagnostic functions available for quickly
fixing them. This helps to respond early and
focused and prevent unnecessary high energy
consumption.
7.4 Reporting information regarding energy
consumption, indoor conditions
2
0
Indication of actual values only
(e.g. temperatures, meter values)
The information is available but without
reasonable tools very often nothing happens
based on it. Due to that increases in energy
consumption are not detected (early on).
1
Trending functions and consumption
determination
Consumption data and trend information allow
for early detection of changes. W hether it is
possible to prevent increases in energy
consumption based on this information depends
on the capabilities and the availabilities of the
technical personnel.
2
Analyzing, performance evaluation,
benchmarking of indoor environment and energy
With analysis and evaluation functions and the
benchmarking of the indoor environment and
energy consumption it is possible to prevent
increasing energy consumption early on and
with a focused effort.