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Dia-
gnostics
Parameter
code
d.02
Maximum burner anti-
cycling time in heating
mode
d.04
Water temperature in the
cylinder
d.05
Determined heating flow
set target temperature
d.06
Hot water set target tem-
perature
d.07
Set target temperature
for the domestic hot wa-
ter cylinder
d.08
Status of the 230 V ther-
mostat
d.09
Heating flow set target
temperature that is set
on the eBUS room ther-
mostat
d.10
Status of the internal
pump in the heating cir-
cuit
d.11
Status of the heating
circuit's shunt pump
d.13
Status of the hot water
circuit's circulation pump
d.14
Operating mode of the
modulating pump
d.15
Pump speed
d.16
Status of the 24 V room
thermostat
d.17
Heating control
d.18
Pump overrun operating
mode
d.19
Pump operating mode, 2
stage pump
0020224355_00 HOME Installation and maintenance instructions
Values
Unit
Increment, select, explanation
Min.
Max.
2
60
min
1
℃
–
Current value
℃
–
Current value
℃
Current value
(Combination unit only)
℃
–
Current value
–
Current value
0 = Room thermostat open (no
heat requirement)
1 = Room thermostat closed
(heat requirement)
℃
–
Current value
–
Current value
off / on
–
Current value
off / on
–
Current value
off / on
–
0
5
0 = variable rotational speed
(auto)
1; 2; 3; 4; 5 = Fixed rotational
speeds → Section "Setting the
pump output"
–
Current value
%
–
Current value
off = Heating off
on = Heating on
–
–
–
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.)
–
1
3
1 = Comfort (continuously operat-
ing pump)
3 = Eco (intermittent pump mode
– for the dissipation of the resid-
ual heat after hot water gener-
ation at an extremely low heat
demand)
–
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
Appendix
Default set-
User-spe-
ting
cific setting
20
Adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
0
Adjustable
–
Not
adjustable
–
Not
adjustable
0
Adjustable
1
Adjustable
3
Adjustable
31
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