7
Diagram 2: Functions
Function
Default valve
Arrange
Description
8
℃
5-20
℃
Switch-on temp. difference
Temp. difference
circulation
4
℃
2-12
℃
Switch-off temp. difference
60
℃
45-75
℃
Reference temp. for Auxi.H
Auxiliary heating
00:00-00:00
00:00-00:00
17:00-22:00
00:00-23:50
Working time periods for Auxi.H
35
℃
15-60
℃
Reference temp. for solar heat collect
Solar heat collect
00:00-23:59
00:00-00:00
00:00-00:00
00:00-23:59
Working time periods for solar
heat collect
35
℃
15-60
℃
Reference temp. for hot water end
circulation
Hot water end
circulation
00:00-23:59
00:00-00:00
00:00-00:00
00:00-23:59
Working time periods for hot water end
circulation
Collector frost
protection
3
℃
2-8
℃
When the collector temp. is lower than the
desired frost protection temp., this function
will be activated.
Tank high temp.
protection
80
℃
50-95
℃
When the storage reaches the desired
overheating
protection
temp.,
temp.
difference circulation will be switched off.
System overheat
protection
130
℃
120-160
℃
When the collector is overheating, the
system switches off emergently avoiding
to be destroyed.
Anti-bacteria
Open
When the collector temp. is lower than the
desired frost protection temp., this function
will be activated.
Holiday function
Close
This function will be activated when a
holiday is planed or when there is no need to
use hot water for a long time.
Factory default
All the desired values (except Time) can be
set back to factory default.
Solar working station series for solar water heating control system
Summary of Contents for SP228
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