Installation and maintenance instructions ecoTEC 0020029172_03
44
Display Meaning
Display value/adjustable value
d.0
Heating part load
Adjustable heating part load in kW (factory setting: approx. 70%
of maximum output)
d.1
Pump overrun for heating mode
2 - 60 minutes (factory setting: 5)
d.2
Maximum burner anti-cycling time heating at 20°C flow
temperature
2 - 60 minutes (factory setting: 20)
d.4
Measured value of cylinder sensor
in °C
d.5
Set value of flow temperature (or target value of return) in °C, maximum of the value set in d.71, limited by an eBUS controller
if connected)
d.7
Set value cylinder temperature
40 to 65 °C (maximum temperature can be adjusted at d.20)
d.8
Room thermostat at terminals 3-4
0 = Room thermostat open (no heat request)
1 = Room thermostat closed (heat request)
d.9
Set value flow temperature at terminal 7-8-9
in °C, minimum off, target value of ext. eBus and target value of
terminal 7
d.10
Status internal pump
1 = on, 0 = off
d.11
Status external heating pump
1 to 100 = on, 0 = off
d.12
Status cylinder charge pump
1 to 100 = on, 0 = off
d.13
Status circulation pump
1 to 100 = on, 0 = off
d.15
Pump speed actual value
Actual value internal pump in %
d.22
Hot water demand via C1/C2, internal hot water control
system
1 = on, 0 = off
d.23
Summer/winter operating mode (heating on/off)
1 = heating on, 0 = heating off (summer mode)
d.24
not relevant
not relevant
d.25
Hot water generation enabled by eBUS controller
1 = yes, 0 = no
d.29
Actual value circulation water quantity of flow rate
sensor
Actual value in m
3
/h
d.30
Control signal for the gas valve
1 = on, 0 = off
d.33
Fan speed target value
in rpm/10
d.34
Fan speed actual value
in rpm/10
d.35
not relevant
Not relevant
d.40
Flow temperature
actual value in °C
d.41
Return temperature
actual value in °C
d.44
Digitalised ionisation voltage
Display range 0 to 102, >80 no flame, <40 good flame display
d.47
Outside temperature (with weather-controlled Vaillant
controller)
Actual value in °C
d.76
Boiler variant (display): Device specific number (DSN)
46
d.90
Status digital regulator
1 = detected, 0 = not detected (eBUS Address <=10)
d.91
Status DCF with external sensor connected
0 = no reception, 1 = reception, 2 = synchronised, 3 = valid
d.97
Activation of the 2
nd
diagnosis level
Code: 17 for level 2
d.98
Telephone number of heating engineer
Programmable telephone number
Table 9.2 Diagnosis codes in the 1
st
diagnosis level
2
nd
diagnosis level
• Scroll as described above in the 1
st
diagnosis level to
diagnosis code
d.97
• Change the displayed value to
17
(password) and save
this value.
You are now in the 2
nd
diagnosis level in which all
information from the 1
st
(see Table 9.2) and the 2
nd
(see Table 9.3) is displayed.
Scroll and change values and exit diagnosis mode as
described in the 1
st
diagnosis level.
h
Note!
If you push the buttons "i" and "+" within
4 minutes of leaving the 2
nd
diagnosis level,
you can directly access the 2
nd
diagnosis level
without re-entering the password.
9 Troubleshooting
Summary of Contents for ecoTEC VU 466/4
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