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Siemens Building Technologies
Basic Documentation RVA47.320
CE1P2379E
HVAC Products
Description of the enduser settings
15.07.2002
1. Press the operating line selection buttons to select line 16.
2. Press the + / – buttons to select the summer / winter changeover temperature.
Setting range
Unit
Factory setting
8...30.0 °C
17
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
The summer / winter changeover temperature can act either locally or on other devices
in the system (also refer to section "Effect of summer / winter changeover temperature")
(Also refer to "Effect of automatic summer / winter changeover" on operating line 91).
•
This function only acts in automatic mode
and standby mode
.
•
Level cursor flashes during summer operation.
To determine changeover, the setting of the summer / winter changeover temperature
( ± a fixed switching differential) is compared with the attenuated outside temperature.
Also refer to page 64.
Heating
OFF
(from winter to summer)
TAged > SoWi + 1°C
Heating
ON
(from summer to winter)
TAged < SoWi - 1°C
ON
17
T
SoWi
TAged
°C
H
OFF
t
23
79
D06
SoWi +1 °C
SoWi -1 °C
16
18
19
20
5
0
10
15
Changeover between summer and winter operation:
TAged Attenuated outside temperature
SoWi Summer / winter changeover temperature
T Temperature
t Time
in
days
H Heating
Setting
Effect
Notes
Changeover
