Viessmann VITODENS 222-F Service Instructions Manual page 53

Vitodens 222-F B2TA 19 and 35 Service
General
(continued)
Coding in the factory setting
51:0
52:0
53:1
54:0
DO NOT ADJUST
6E:50
76:0
System with low loss header:
Boiler circuit pump is always
started when there is a heat
demand
Without supply temperature
sensor for low loss header
Function connection sK of
the internal extension: DHW
circulation pump
Without solar thermal system
No correction of measured
outside temperature
Without communication module
Possible change
51:1 System with low loss header:
When there is heat demand, the
boiler circuit pump will only be
started if the burner is running.
51:2 System with heating water buffer
DHW tank:
When there is a heat demand, the
internal circulation pump will only
be started when the burner is
operational.
52:1 With supply temperature sensor
for low loss header (automatic
recognition).
53:0 Central fault message
53:2 External heating circuit pump
(heating circuit 1).
53:3 External circulation pump for
DHW tank heating.
54:1 With Vitosolic 100 (automatic
recognition).
54:2 With Vitosolic 200 (automatic
recognition).
54:3 With solar control module SM1
without auxiliary function
(automatic recognition).
54:4 With solar control module SM1
with auxiliary function, e.g.
central heating backup (automatic
recognition).
6E:0 Outside correction in 0.1 K steps
to 0 to 49= -5 K to -0.1 K
6E:100 51 to 100= 0.1 K to 5 K
76:1 With LON communication module
(recognized automatically.
76:2 With cascade communication
module (recognized automatically;
only for constant temperature
control units).
Code 2
53