Constant For Quick Setback (Kon) - Siemens ALBATROS QAA73.110 Basic Documentation

Example with graph
Note
Description
Line 103
Effect
Quick setback with
no room influence
54/70
Siemens Building Technologies
HVAC Products
As the example shows, if the room temperature is 2 °C too high, the room influence
temporarily shifts the room temperature setpoint down to a level of 12 °C.
TRwk [°C]
30
25
20
15
10
5
5 10
The corrected room temperature setpoint
KORR works only if the room temperature influence on line 75 is activated.
5.3

Constant for quick setback (KON)

Quick setback takes advantage of the thermal storage capacity of a building. The
constant for quick setback is only active in the case of quick setback of control systems
with no room influence.
1. Press the line selection buttons to select line 103.
2. Press the + / – buttons to set the constant.
Setting range
0...20
The duration of quick setback will be changed.
Entry:
Increase: Setback time will become longer
For well insulated buildings that cool down slowly
Decrease: Setback time will become shorter
For poorly insulated buildings that cool down rather quickly
Quick setback is started as soon as a change to a lower room temperature setpoint
takes place (e.g. switching times in automatic mode).
The heating circuit pump will be deactivated until the quick setback time has elapsed,
which is the result of setting 103, the composite outside temperature and the room
temperature setpoint jump.
The quick setback time is limited to a maximum of 15 hours.
Basic Documentation QAA73.110 Room unit
Description of the OEM settings
TRw
KORR=4
KORR=10
15 20
Unit
–
TRx °C
25 30
Factory setting
2
CE1P2284en
10.07.2002