Table of Contents
Advertisement
Description
Line 46
Effect
Changeover
Notes
32/70
Siemens Building Technologies
HVAC Products
3.15 Summer / winter changeover temperature
The summer / winter changeover temperature is the criterion for automatic summer /
winter changeover of the heating plant.
It offers the following benefits:
• Fully automatic operation throughout the year
• The heating will not be switched on when the outside temperature drops for short
periods of time
• Additional savings function
1. Press the line selection buttons to select line 46.
2. Press the + / – buttons to select the summer / winter changeover temperature.
Setting range
8 ... 30.0
By changing the setting, the respective periods of time will be shortened or extended.
The change will only affect the heating circuit.
Entry:
Increase:
Winter operation will start earlier
Summer operation will start later .
Decrease:
Winter operation will start later
Summer operation will start earlier
To determine changeover, the setting of the summer / winter changeover temperature
( ± a fixed switching differential) is compared with the attenuated outside temperature.
Heating OFF (from winter to summer)
Heating ON (from summer to winter)
• This function only acts in automatic mode
• During summer operation, Info line 4 Eco is displayed
T
°C
20
19
18
17
16
H
ON
OFF
0
5
Changeover between summer and winter operation:
TAged
Attenuated outside temperature
SuWi
Summer / winter changeover temperature
T
Temperature
t
Time in days
H
Heating
Basic Documentation QAA73.110 Room unit
Error! Style not defined.
Unit
°C
TAged > SuWi +1 °C
TAged < SuWi -1 °C
TAged
SuWi +1 °C
SuWi
SuWi -1 °C
t
10
15
Factory setting
17
CE1P2284en
19.06.2002
Advertisement
Table of Contents
