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Solar bypass
Use a relay to switch a bypass valve or a bypass pump. With this function, the flow can be guided past the storage if the flow temperature at
the bypass sensor is less than in the storage to be filled.
Solar bypass
Variant
In this menu, you can set if the flow is guided through the bypass with a pump or a valve.
Bypass sensor
The reference sensor for the bypass function to be placed in the flow is selected in this menu.
Thermostat
Through the thermostat function, additional energy can be added to the system while being time and temperature controlled. The ther-
mostat function can be used in 2 modes.
"On" = the relay is switched on when all switching conditions are reached
"Inverted" = the relay is switched off when all switching conditions are reached and is otherwise switched on.
Temperature values which are set too high can lead to scalding or damage to the system. Scalding protection must be provided
by the customer!
Other values, for example, Teco, apply in economy mode.
Thermostat
Tset
The target temperature of the thermostat sensor 1. Below this temperature, the eat turns on until Tset+ Hysteresis is reached.
Hysteresis
Hysteresis of set-point temperature.
Thermostat sensor 1
TH Set is measured at thermostat sensor 1. With a connected thermostat sensor 2, the relay switches on if “TH Ref” at thermostat sensor 1
is undershot and off if “TH Ref” + hysteresis is exceeded at thermostat sensor 2.
Thermostat sensor 2
Optional switch off sensor
If “TH target” + hysteresis is exceeded on thermostat sensor 2, the relay will be shut down.
Teco
T Set for energy saving mode
If the energy saving mode (See " Energy Saving Mode " on page 35) is on: During a solar charge, instead of “TH reference”, this set value
“Teco” will be used as the reference value. When the temperature drops below Teco at thermostat sensor 1, the relay is switched on and
heats up to “T eco” + hysteresis.
Energy Saving Mode
The Energy Saving Mode switches the heating on when “T Eco on” is undershot and heats up to “T Eco” + hysteresis when solar charge or
solid fuel boiler is active.
Thermostat enable
Thermostat activity times
35


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