Operating instructions

63
Coding in the delivered condition Possible change
Internal circulation pump function
51:0 Internal circulation pump
always starts when there
is a heat demand
51:1 System with low loss
header:
When there is a heat
demand, the internal circu-
lation pump only starts
when the burner is opera-
tional (with pump run-on).
51:2 System with heating water
buffer cylinder:
When there is a heat
demand, the internal circu-
lation pump only starts
when the burner is opera-
tional (with pump run-on).
Subscriber no.
77:1 LON subscriber number
(only for weather-com-
pensated control units)
77:2
to
77:99
LON subscriber number,
adjustable from 1 to 99:
1 - 4 = Boiler
5 = Cascade
10 - 98 = Vitotronic 200-H
99 = Vitocom
Note
Allocate each number only
once.
Detached house/apartment building
7F:1 Detached house (only for
weather-compensated
control units)
7F:0 Apartment building
Separate adjustment of
holiday program and time
program for DHW heating,
as option
Lock out controls
8F:0 All control elements
active
8F:1 All control elements locked
out
8F:2 Only standard settings can
be controlled
Code 1
General/Group "1"
(cont.)
5457 552 GB
Service