Technical data

47
Troubleshooting 8
47
Key to diagnosis codes
Code Meaning Displayed/Adjustable values
d.0 Part load setting Adjustable values in kW
d.1 Water pump over run 1 – 60 min (factory–adjusted to 5 min)
d.2 Maximum burner anti cycling period at 20 °C
flow temperature 2 – 60 min (factory–adjusted to 20 min)
d.5 Flow temperature setting Target value in °C
d.7 Warmstart temperature setting (ecoMAX 800) Target value in °C
d.8 External controls heat demand 0 = room thermostat open (no demand)
1 = room thermostat closed (demand)
d.10 Pump status 1 = ON
0 = OFF
d.11 External pump status 1 = ON
0 = OFF
d.13 External circulation pump 1 = ON
when fitted (ecoMAX 835) 0 = OFF
d.14 Pump speed Set value for built–in pump.
(ecoMAX 635, 835) Factory setting: ”auto”; possible adjustments:
0 = auto, 1 = 53%, 2 = 60%, 3 = 70%, 4 = 85%, 5 = 100%
d.16 2
nd
pump 1 = DHW circulating pump
2 = external CH pump
3 = vantage loading pump
4 = solar pump
d.22 Domestic hot water demand 1 = ON
0 = OFF
d.23 Summer/Winter function (control knob) 1 = Winter
0 = Summer
d.24 Not applicable in GB –
d.25 Hot–water activation 1 = yes
via warm–start clock 0 = no
d.34 Current fan speed value Current value in rpm/10
d.35 Diverter valve position 0 = heating system
(ecoMAX 800) 1 = hot water
2 = mid position
d.40 Actual flow temperature Current value in °C
d.41 Actual return temperature Current value in °C
d.44 Actual ionisation–current value Current value /100 in µA
d.46 Outside–temperature correction Correction value in K
(only when VRC 410s is fitted)
d.47 Actual outside temperature Current value in °C
(only when VRC 410s is fitted)
d.60 Number over heat cut off operations Number
d.61 Number of lock outs Number of unsuccessful ignition operations at
last attempt
d.67 Remaining anti cycling period in min
d.68 No first start Number of unsuccessful attempted 1
st
ignitions
d.69 No second start Number of unsuccessful attempted 2
nd
ignitions
d.71 Maximum target value for heating system Max. target value for heating–system flow temp. flow temperature
(ecoMAX 800) adjustable value 40–85 °C
(factory–adjusted to 75 °C)
d.72 Pump over run (for loading warmstart) Pump over run period, in seconds, after filling
(ecoMAX 800) of an electronically–controlled hot–water tank (incl.
warm–start and filling via C1– C2);
factory–adjusted to 80 s
d.73 Offset warmstart temperature value Range: –15 K to +15 K
For solar applications: Switching difference Factory–adjusted to –5 K (ecoMAX 800).
for the solar pump Recommended setting for solar applications: +7 °C
d.80 Number of heating system operating hours in h
(Total) (ecoMAX 800)
d.81 Number of hot water system operating hours in h
(Total) (ecoMAX 800)
d.82 Number of heating system cycles (Total)
d.83 Number of hot water system cycles (Total)
Table 8.2 Diagnosis codes
83 41 77_12 GB04.04.qxd 22.09.2004 12:34 Uhr Seite 47