Heating Circuit - Viessmann Vitodens 222-F B2TA Installation And Service Instructions Manual

"DHW"/group 3
Coding in the delivered condition
"Heating circuit ..."/group 5
Select "Heating circuit ..." for weather-
compensated control units (see
page 89).
Coding
Coding in the delivered condition
A0:0 Without remote control
A1:0 All possible settings at
the remote control can be
accessed
A3:2 Outside temperature be-
low 1 °C: Heating circuit
pump "ON"
Outside temperature
above 3 °C: Heating cir-
cuit pump "OFF"
!
Please note
If a value below 1 °C is selected, there is a risk that pipes outside the thermal
envelope of the house could freeze up.
Standby mode in particular should be taken into consideration, e.g. during
holidays.
Parameter
Address A3:...
–9
–8
–7
(cont.)
Heating circ pump
"ON"
–10 °C
–9 °C
–8 °C
Possible change
73:6 "ON" 6 times per hour for
5 min
73:7 Constantly "ON"
Select "5" for constant temperature con-
trol units (see page 89).
Possible change
A0:1 With Vitotrol 200A/200 RF
(automatic recognition)
A0:2 With Vitotrol 300A/300 RF
or Vitocomfort (automatic
recognition)
A1:1 Only party mode can be set
at the remote control (only
for Vitotrol 200)
A3:–9 Heating circuit pump "ON/
to OFF" (see the following ta-
A3:15 ble)
"OFF"
–8 °C
–7 °C
–6 °C
Code 2
101