Buderus Logamatic 4122 - Managing Seasonal Mode Settings; Setting Auto Changeover Temp; Constant Summer Mode Configuration; Constant Winter Mode Configuration

Extended functions
7
Logamatic 4121, 4122 and 4126 - Subject to technical modifications.
45
Winter mode
DHW and central heating are operational if the "Adjusted outside temperature"
falls below the factory-set changeover threshold of 17 °C.
Setting the automatic summer/winter time changeover
Select the required heating circuit before calling up the summer/winter time
changeover. You may select either an individual heating circuit or all circuits
assigned to the MEC2.
z Select a heating circuit (Æ Chapter 7.6).
Example: Heating circ. 2
Setting the changeover temperature
Hold down "Su/Wi". The display briefly shows the heating circuit. Then turn
the
rotary selector to the required changeover temperature, below which
you
want to heat (here: "18°C").
The display shows the set changeover temperature.
Release "Su/Wi" to save your input.
Setting up constant summer mode
z Select a heating circuit (Æ Chapter 7.6).
Example: Heating circ. 2
Hold down "Su/Wi". The display briefly shows the heating circuit.
Then
turn the rotary selector to a changeover temperature below 10 °C.
The display shows "Constant summer".
Release "Su/Wi" to save your input.
Your heating system will constantly operate in summer mode.
Setting up constant winter mode
z Select a heating circuit (Æ Chapter 7.6).
Example: Heating circ. 2
Hold down "Su/Wi". The display briefly shows the heating circuit. Then turn
the
rotary selector to a changeover temperature above 30 °C.
The display shows "Constant winter".
Release "Su/Wi" to save your input.
Your heating system will constantly operate in winter mode.
+
Summer / Winter
Summer from
18°C
+
Summer / Winter
Constant summer
+
Summer / Winter
Constant winter