Appendix
0020300876_01 Energy
7
Installation and maintenance instructions 47
Dia-
gnostics
code
Parameter
Values
Unit Increment, select, explanation
Default set-
ting
Own setting
Min. Max.
d.18 Pump overrun operat-
ing mode
1 3 – 1 = Continuous (pump runs per-
manently)
3 = Eco (intermittent pump oper-
ation – for the dissipation of the
residual heat after domestic hot
water generation at an extremely
low heat demand)
1 Adjustable
d.19 Pump mode, 2-stage
pump
0 3 – 0 = Burner mode stage 2, pump
flow/overrun stage 1
1 = Heating mode and pump
run/overrun stage 1, domestic
hot water mode stage 2
2 = Automatic heating mode,
pump rin/overrun stage 1, do-
mestic hot water mode stage 2
3 = Stage 2
3 Adjustable
d.20 Maximum target do-
mestic hot water tem-
perature
50 60 ℃ 1 60 Adjustable
d.21 Status of the warm
start for domestic hot
water
Current value – off = Function deactivated
on = Function activated and
available
– Not
adjustable
d.22 Status of the DHW
demand
Current value – off = No current requirement
on = Current requirement
– Not
adjustable
d.23 Status of the heat de-
mand
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 require-
ment to reheat the cyl-
inder or for the do-
mestic 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 = Extraction hood
5 = External solenoid valve
6 = Fault display
7 = Solar pump (omitted)
8 = eBUS remote control
9 = Anti-legionella 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 = Extraction hood
5 = External solenoid valve
6 = Fault display
7 = Solar pump (omitted)
8 = eBUS remote control
9 = Anti-legionella 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