Appendix
30 Installation and maintenance instructions SUSTAIN ..c 0020200954_00
Setting level Values
Unit Increment, select, explanation
Default set-
ting
Own setting
Min. Max.
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 thermostat
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 = External fault message
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 = External fault message
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 operation)
100 = Domestic hot water
– Not
adjustable
d.36 Value for the hot water
flow
Current value l/h – – 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
d.50 Correction of the min-
imum fan speed
0 3000 rpm 1
Fan speed = Display value x 10
600 Adjustable
d.51 Correction of the max-
imum fan speed
-2500 0 rpm 1
Fan speed = Display value x 10
-1000 Adjustable
d.58 Solar circuit reheating 0 3 – 0 = Boiler's Legionella protection
function deactivated
3 = Hot water activated (target value
min. 60 °C)
0 Adjustable