Viessmann VITOLADENS 300-W Installation And Service Instructions Manual page 75

Boiler
(cont.)
Coding in the delivered condition
24:0 "Service" not shown on
display
26:0 Burner fuel consumption
(stage 1); no count if
"26:0" is programmed
29:0 Burner fuel consumption
(stage 1 and 2); no count
if "29:0" is programmed
2E:0 Do not adjust
2F:0 Venting program/fill pro-
gram disabled
30:1 Internal variable speed
circulation pump (auto-
matic adjustment)
31:... Set speed in % of the in-
ternal circulation pump
when operated as boiler
circuit pump, specified by
the boiler coding card
38:0 Status burner control unit:
Operational (no fault)
Possible change
24:1 "Service" is shown on dis-
play (the address is auto-
matically set and must be
manually reset after a serv-
ice has been carried out)
26:1 Entry of 0.1 to 25.5; 1 step
≙ 0.1 litres or gallons/hour
to
26:255
29:1 Entry of 0.1 to 25.5; 1 step
≙ 0.1 litres or gallons/hour
to
29:255
2F:1 Venting program enabled
2F:2 Fill program enabled
30:0 Internal circulation pump
without variable speed
(e.g. temporarily for serv-
ice)
31:0 Set speed adjustable from
to 0 to 100 %
31:100
38:≠0 Status burner control unit:
Error
Code 2
75