Vaillant ecoTEC exclusive 843 Installation And Maintenance Instructions Manual page 39

Code Parameter
D.034 Fan speed actual value
D.035 3-way valve position
D.036 DHW flow rate
D.039 Solar inlet temp. actual
value
D.040 Flow temperature actual
value
D.041 Return temperature actual
value
D.044 Ionisation value actual
value
D.046 Pump mode
D.047 Current outside temperat-
ure
D.050 Offset min. speed
D.051 Offset max. speed
D.052 Min. gas valve steps offset
D.058 Solar post-heating
D.060 Number of safety therm.
shut-downs
D.061 No. of shut-downs in ign.
flame controller
D.064 Avg. ignition time
D.065 Max. ignition time
D.067 Remaining anti-cycl. time
for heating
D.068 Number of first start at-
tempts
D.069 Number of second start
attempts
D.070 3-way valve operation
D.071 Max. heating target flow
temp.
D.072 Pump overrun after cylin-
der charging
D.073 Offset setting for comfort
mode
D.074 Anti-legionella funct. with
integrated cyl.
0020193968_03 ecoTEC exclusive Installation and maintenance instructions
Values
Unit Increment, select, explanation
Min. Max.
–
Current value rpm
–
Current value Position of the prioritising diverter
valve
0. Heating mode
1: Parallel operation (mid-position)
2: DHW mode
–
Current value l/min
–
Current value °C
–
Current value °C
–
Current value °C
–
Current value > 800 = No flame
< 400 = Good flame
–
0 1 0 = Relay with disable facility
1 = PWM with disable facility
Current value °C (with Vaillant weather-compensated
control)
0 3000 rpm Nominal value set in factory
-990 0 rpm Nominal value set in factory
–
0 99 The offset is specified at the gas
valve assembly.
1
–
0 3 Only products with integrated do-
mestic hot water generation
0 = Solar post-heating deactivated
3 = Domestic hot water activated
(min. target value 60 °C)
–
Current value Number of safety cut-out switch-off
sequences
– –
Current value
–
Current value s
–
Current value s
–
Current value min
–
Current value Unsuccessful ignitions at 1st at-
tempt
–
Current value Unsuccessful ignitions at 2nd at-
tempt
–
0 2 0 = Normal operating mode
1 = Mid-position (parallel operation)
2 = Permanent heating position
40 80 °C Target value maximum heating flow
temperature
1
0 10 min Internal pump
1
−15
5 K Only products with integrated do-
mestic hot water generation
1
–
0 1 0: Off
1: On
Appendix
Default Own
setting setting
–
Not ad-
justable
–
Not ad-
justable
–
Not ad-
justable
–
Not ad-
justable
–
Not ad-
justable
–
Not ad-
justable
–
Not ad-
justable
0
–
Not ad-
justable
–
–
–
0
–
Not ad-
justable
–
Not ad-
justable
–
Not ad-
justable
–
Not ad-
justable
–
Not ad-
justable
–
Not ad-
justable
–
Not ad-
justable
0
75
2
0
1
39