Boiler - Group 2 - Viessmann VITODENS 222-F Installation And Service Instructions Manual

Code 1
General – Group 1
Coding in the delivered condition
Lock out controls
8F:0 All control elements
active
Ext. Heating program changeover to heating circuit
91:0 No external heating pro-
gram changeover via
external extension (only
for weather-compensa-
ted control)
Set flow temperature in case of ext. demand
9b:0 No minimum flow temper-
ature in case of external
demand
Boiler – Group 2
Coding
Coding in the delivered condition
Single/multi-boiler system
01:1 Never adjust
64
(cont.)
Possible change
8F:1
8F:2
91:1
91:2
91:3
9b:1
to
9b:127
Possible change
All control elements locked
out
Only setting test mode pos-
sible
Standard menu and test
mode enabled
Extended menu locked out
The external heating pro-
gram changeover affects
the heating circuit without
mixer
The external heating pro-
gram changeover affects
the heating circuit with
mixer
The external heating pro-
gram changeover affects
the heating circuit without
mixer and the heating cir-
cuit with mixer
Set value for minimum flow
temperature in case of
external demand, adjusta-
ble from 1 to 127 °C (limited
by boiler-specific parame-
ters)