Appendix
0020283671_03 Energy 2 Installation and maintenance instructions 31
Dia-
gnostics
code
Parameter
Values
Unit Increment, select, explanation
Default set-
ting
Own setting
Min. Max.
d.21 Status of the warm start
for hot water
Current value – off = Function deactivated
on = Function activated and
available
– Not
adjustable
d.22 Status of the hot water
request
Current value – off = No current requirement
on = Current requirement
– Not
adjustable
d.23 Status of the heating
demand
Current value – off = Heating off (Summer mode)
on = Heating on
– Not
adjustable
d.24 Status of the pressure
monitor
0 1 – off = Not switched
on = Switched
– Not
adjustable
d.25 Status of the requirement
to reheat the cylinder or
for the hot water warm
start from the eBUS ther-
mostat
Current value – off = Function deactivated
on = Function activated
– Not
adjustable
d.27 Function of relay 1
(multi-functional module)
1 10 – 1 = Circulation pump
2 = External pump
3 = Cylinder charging pump
4 = Extractor hood
5 = External solenoid valve
6 = Fault display
7 = Solar pump (omitted)
8 = eBUS remote control
9 = Legionella protection pump
10 = Solar valve
1 Adjustable
d.28 Function of relay 2
(multi-functional module)
1 10 – 1 = Circulation pump
2 = External pump
3 = Cylinder charging pump
4 = Extractor hood
5 = External solenoid valve
6 = Fault display
7 = Solar pump (omitted)
8 = eBUS remote control
9 = Legionella protection pump
10 = Solar valve
2 Adjustable
d.31 Automatic filling device 0 2 – 0 = Manual
1 = Semi-automatic
2 = Automatic
0 Adjustable
d.33 Fan speed target value Current value rpm Fan speed = Display value x 100 – Not
adjustable
d.34 Value for the fan speed Current value rpm Fan speed = Display value x 100 – Not
adjustable
d.35 Position of the diverter
valve
Current value – 0 = Heating
40 = Mid-position (parallel opera-
tion)
100 = Domestic hot water
– Not
adjustable
d.36 Value for the hot water
flow
Current value l/min – – Not
adjustable
d.39 Water temperature in the
solar circuit
Current value ℃ – – Not
adjustable
d.40 Heating flow temperature Current value ℃ – – Not
adjustable
d.41 Heating return temperat-
ure
Current value ℃ – – Not
adjustable
d.43 Heating curve 0.2 4 – 0.1 1.2 Adjustable
d.45 Value for the base point
of the heating curve
15 30 – 1 20 Adjustable
d.47 Outside temperature Current value ℃ – – Not
adjustable
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