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Special functions
The here explained additional functions can be assigned to unused relays. Every ad-
ditional function can only be used once. Pay special attention to the technical data of
the relays („B.1. - Specifi cations“).
The enumeration does not correspond to the controllers menu enumera-
tion.
Example
Caution
System 1 +
System 1 +
System 1 +
Solar with heat exchanger with additi-
onal function Solid Fuel Boiler
Solar with storage with additional
function Solar Bypass
Solar with heat exchanger with additi-
onal function Return Flow Increasee
6.5. - Relay functions
6.5.1. - Solar bypass
Use the relay to switch a bypass valve or a bypass pump
This can direct the fl ow pass the storage, when the fl ow temperature at the bypass
sensor is lower than the storage that has to be charged.
6.5.1.2. - Variant
6.5.1.3. -
Bypass (sensor)
This menu determines wether a pump or valve is used to direct the fl ow through the
bypass.
The fl ow sensor for the bypass function is selected in this menu. Do not install in the
return fl ow.