Operating instructions

64
Coding in the delivered condition Possible change
Set flow temperature for ext. demand
9b:70 Set flow temperature in
case of external demand
70 °C
9b:0
to
9b:127
Set flow temperature for
external demand adjusta-
ble from 0 to 127 °C (limited
by boiler-specific parame-
ters)
Boiler/Group "2"
Select "Boiler" for weather-compensated control units (see page 61).
Select "2" for constant temperature control units (see page 61).
Coding
Coding in the delivered condition Possible change
Single/multi-boiler system
01:1 Do not adjust (only for
constant temperature
control units)
Burner service in 100 hours
21:0 No service interval (hours
run) selected
21:1
to
21:100
The number of hours run
before the burner should
be serviced is adjustable
from 100 to 10,000 h
One adjusting step
≙
100 h
Service interval in months
23:0 No time interval for
burner service
23:1
to
23:24
Interval adjustable from 1
to 24 months
Service status
24:0 No "Service" display 24:1 "Service" display (the
address is automatically
set and must be manually
reset after a service has
been carried out)
Filling/Venting
2F:0 Venting program/fill pro-
gram disabled
2F:1 Venting program enabled
2F:2 Fill program enabled
Code 1
General/Group "1"
(cont.)
5457 552 GB