Viessmann Vitodens 222-F B2TB, Application Manual

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Vitodens 222-F, B2TB
Application 5 Operational Setup Instructions
This application shows a low temperature heat circuit with 3-way mixing valve and a high temperature heat circuit
piped on the system side of the low loss header. This application provides precise system temperature monitoring
and increases the overall system efficiency. If using Vitotrol communicating room controls, simply wire them in
series back to the boiler and follow the onscreen setup wizard. If your preference is to use room thermostats to
turn the system on/off, follow the steps outlined below.
Type/Option Step# Description Parameter Set to: Setup
Location
Using Vitotrols
1 Designate 28/20 output as HC1 Pump(P4) 52: :02
Set in
Level 2
Coding
2 Configure P1 to shut down once low loss header has reached its setpoint temperature 51 :01
3 Setup HC1 Outdoor Reset Curve
Set in heating
sub menu
4 Setup HC2 Outdoor Reset Curve
5 Set DHW Temperature
6 Setup Vitotrols
or
Using Thermostat/
End Switch
1 Designate 28/20 output as HC1 Pump(P4) 52: :02
Set in Level 2
Coding
(HC1)
2 Configure boiler to operate upon a call for heat from HC1
Activates DE1 Contact 3A :01
Initiates Changeover D5 :01
Contact D8 :01
Time limit for changeover F2 :0
Changeover F8 -61
Adjust Daytime schedule
--:--
Set in heating
sub menu
Set Reduced room temperature 3°C
3 Configure boiler to operate upon a call for heat from HC2
Set in
Level 2
Coding
(HC2)
Activates DE2 Contact 3B :01
Initiates Changeover D5 :01
Contact D8 :02
Time limit for changeover F2 :0
Changeover F8 -61
Adjust Daytime schedule
--:--
Set in heating
sub menu
Set Reduced room temperature 3°C
4 Setup HC1 Outdoor Reset Curve
5 Setup HC2 Outdoor Reset Curve
6 Set DHW Temperature
Optional Adjustments
Set a Heating Schedule (Not required if DE contact is being used as a changeover)
Set in heating
sub menu
Set an Individual DHW Schedule