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Special functions
The here explained additional functions can be assigned to unused relays. Every addi-
tional function can only be used once. Pay special attention to the technical data of the
relays („B.1. - Specification“).
Numbering does not have to correspond to the numbering in the contro-
ller menu.
Example
Solar +
Solar +
Solar +
Solar with heat exchanger and ad-
ditional Solid Fuel Boiler function
Solar with storage and additional
Solar Bypass function
Solar with heat exchanger and addi-
tional Return Flow Increase function
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 flow pass the storage, when the flow 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 whether a pump or valve is used to direct the flow through the
bypass.
The flow sensor for the bypass function is selected in this menu. Do not install in the
return line.
Caution
