0020230533_06 ecoFIT pure Installation and maintenance instructions 43
Dia-
gnostics
code
Parameter
Values
Unit Increment, select, explanation
Default set-
ting
Own setting
Min. Max.
d.16 Status of the 24 V room
thermostat
Current value – off = Heating off
on = Heating on
– Not
adjustable
d.17 Heating control – – – off = Flow temperature
on = Return temperature (ad-
justment for underfloor heating.
If you have activated the return
temperature control, the auto-
matic heating output determina-
tion function is not active.)
0 Adjustable
d.18 Pump overrun operating
mode
1 3 – 1 = Continuous (pump runs per-
manently)
3 = Eco (intermittent pump mode
– for the dissipation of the resid-
ual heat after hot water genera-
tion at an extremely low heat de-
mand)
1 Adjustable
d.19 Pump operating mode, 2
stage pump
0 3 – 0 = Burner mode stage 2, pump
flow/overrun stage 1
1 = Heating mode and pump
flow/overrun stage 1, hot water
handling mode stage 2
2 = Automatic heating mode,
pump flow/overrun stage 1, hot
water handling mode stage 2
3 = Stage 2
3 Adjustable
d.20 Maximum hot water set
target temperature
50 60 ℃ 1 60 Adjustable
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
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