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9.5.7 Collector type
Menu: Expert menu > Settings > 1: Standard system > Collector type
In order to pump the heated heat transfer fluid to the temperature sensor in systems with evacuated
tube collectors, the solar system pump is switched on briefly every 15 minutes between the hours of
6:00 am and 10:00 pm if the collector temperature is 20 °C or more.
This function is not possible or is limited if the collector temperature sensor is external to the collector.
Setting range
Flat collector, Tube collector
If Tube collector is selected, the cooling function (
automatically deactivated.
9.5.8 Pump SP operating mode
Menu: Expert menu > Settings > 1: Standard system > SP pump operating mode
In Auto mode, the connected pump runs whenever the conditions for switching on are met.
Selecting the option On activates the pump on.
Selecting the option Off deactivates the pump.
Setting range
Auto, On, Off
9.5.9 Return boost cut-in temperature differential
Menu: Expert menu > Settings > 2: Back-up htg. > DWU1 valve switch-on temp. differential
When the set cut-in temperature differential between the reserve cylinder and the heating system
return is reached, the valve switches over and the flow is diverted through the cylinder.
The minimum difference from the cut-out temperature differential is 3 K.
Setting range
6 - 20 K
Default setting
Flat collector
Default setting
Auto
Default setting
6 K
6 720 644 593 (2010/04)
EXPERT MENU (FOR QUALIFIED TECHNICIANS ONLY)
Section 9.5.36, page 75) is
New setting
New setting
New setting
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