Vaillant atmoTEC exclusive Installation And Maintenance Instructions Manual page 31

Diagnostics code
d.28 Switching accessory relay 2
d.52 Offset for minimum step
motor position
d.53 Offset for maximum step
motor position of the gas valve
assembly
d.56 Set the flue gas character-
istic line
d.58 Activation of solar potable
water post-heating (product with
integrated domestic hot water
generation); raising the minimum
target potable water temperat-
ure.
d.60 Number of temperature
limiter shut-downs
d.61 Number of flame sequence
control faults
d.63 Fuel gas fault meter
d.64 Average ignition time
d.65 Maximum ignition time
d.68 Unsuccessful ignitions at
1st attempt
d.69 Unsuccessful ignitions at
2nd attempt
d.70 Set the prioritising diverter
valve position
d.71 Max. target heating flow
temperature
d.72 Pump overrun after char-
ging a domestic hot water cylin-
der (also warm start and char-
ging via C1/C2)
d.73 Offset for target warm start
value
d.75 Maximum cylinder charging
time (for cylinders without their
own control system)
d.77 Domestic hot water genera-
tion partial load
0020214272_04 atmoTEC exclusive, atmoTEC plus Installation and maintenance instructions
Values
Unit
Min. Max.
–
1 6
–
0 99
–
-99 0
–
0 2
–
0 3
–
Current value
–
Current value
–
Current value
Current value s
Current value s
–
Current value
–
Current value
–
0 2
℃
40 85
0 600 s
K
-15 5
20 90 min
kW
Product- Product-
de- de-
pend- pend-
ent ent
Increment, select, explanation
1 = Circulation pump
2 = External pump
3 = Cylinder charging pump
4 = Flue non-return flap/extraction hood
5 = External gas valve
6 = External fault message
1
Only change after the gas valve assembly has been
replaced
1
0: Austria characteristic line
1: Europe standard characteristic line
2: Not suitable for use
0: Solar post-heating deactivated (adjustment range
for the target potable water temperature: 35-65 °C)
1: Solar post-heating activated (adjustment range for
the target potable water temperature: 60–65 °C)
2: Solar post-heating activated (adjustment range for
the target potable water temperature: 35–65 °C)
3: Solar post-heating deactivated (adjustment range
for the target potable water temperature: 60–65 °C)
–
Unsuccessful ignitions at last attempt
Flue gas exit detected
–
–
–
–
0 = Normal operating mode
1 = Mid-position
2 = Permanent heating mode position
1
10
1
1
1
Appendix
Default set-
ting
2
Product-
dependent
-25
1
0
–
–
–
–
–
–
–
0
75
Product with
domestic hot
water
generation:
20
Product
without
domestic hot
water
generation:
80
0
45
Full load
31