Viessmann Vitodens 222-F B2TB, Application Manual

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Vitodens 222-F, B2TB
This application shows 2 heat circuits with mixing valves and a high temperature heat circuit piped on the primary side of the low loss header.
This system approach maximizes efficiency, control and comfort through precise water monitoring. To increase this level even further, controlling
each heat circuit with a Vitotrol will allow it to feed the boiler with precise room temperature feedback. This allows the boiler to adjust the water
temperature to accomodate changes in the space (open doors, increeased # of occupants, fireplaces...) to setup thie boiler for this application you
will need to complete the following:
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 Setup HC3 Outdoor Reset Curve
6 Set DHW Temperature
7 Setup Vitotrols
On Vitotrol Wizard
or
Using Thermostat/ End Switc
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
Identifies changeover based on DE1 contact D8 :01
Time limit for changeover F2 :0
Temperature Limit for disabling 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 DE1 Contact 3B :01
Initiates Changeover D5 :01
Identifies changeover based on DE2 contact D8 :02
Time limit for changeover F2 :0
Temperature Limit for disabling changeover F8 -61
Adjust Daytime schedule
--:--
Set In Heating Sub
Menu
Set Reduced room temperature 3°C
4 Configure boiler to operate upon an External Demand from HC1
Set in Level 2
Coding (HC3
Set desired setpoint temperature 98: Set Temp.
Identify DE3 as external demand contact 3C: :02
Internal Circulation Pump Mode 3F: :02
5 Setup HC2 Outdoor Reset Curve
Set in Heating Sub
Menu
6 Setup HC3 Outdoor Reset Curve
7 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
Application 6 Operational Setup Instructions