Heating Circuit 1, Heating Circuit 2, Heating Circuit 3/Group "5 - Viessmann VITODENS 200-W Service Instructions Manual

Heating circuit 1, heating circuit 2, heating circuit 3/group "5"

Select "Heating circuit ..." for weather-compensated control units (see page 53).
Select "5" for constant temperature control units (see page 53).
Coding
Coding in the delivered condition
A0:0 Without remote control
(only for weather-com-
pensated control units)
A1:0 All possible settings at
the remote control can be
accessed
A2:2 Cylinder priority applica-
ble to heating circuit
pump and mixer
A3:2 Outside temperature
below 1 °C: Heating cir-
cuit 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 building could freeze up.
The standby mode in particular should be taken into consideration, e.g. during
holidays.
Parameter
Address A3:...
-9
-8
-7
-6
Possible change
A0:1
A0:2
A1:1
A2:0
A2:1
A2:3
to
A2:15
A3:-9
to
A3:15
Heating circuit pump
"ON"
-10 °C
-9 °C
-8 °C
-7 °C
With Vitotrol 200A (auto-
matic recognition)
With Vitotrol 300A or
Vitohome 300 (automatic
recognition)
Only party mode can be set
at the remote control (only
for Vitotrol 200A)
Without cylinder priority
applicable to heating circuit
pump and mixer
Cylinder priority only appli-
cable to mixer
Reduced priority applied to
mixer (the heating circuit
receives a reduced amount
of energy)
Heating circuit pump "ON/
OFF" (see the following
table)
"OFF"
-8 °C
-7 °C
-6 °C
-5 °C
Code 2
73