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Viessmann Vitocal 252-A Series - Page 101

Viessmann Vitocal 252-A Series
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101
Procedure Explanations and references
Heating/cooling circuit 1 to
heating/cooling circuit 4
Configuring the heating/cooling circuits
Note
For types ....2C, only 2 heating/cooling circuits can be configured.
■
Function
■
Not available
■
Heating/cooling circuit without mixer
■
Heating/cooling circuit with mixer (not for heating/cooling circuit 1)
■
Operating mode
■
Heating only
■
Cooling only
An external buffer cylinder (if installed) must be configured for "Heating and
cooling".
■
Heating and cooling
An external buffer cylinder (if installed) must be configured for "Heating and
cooling".
■
Type Type of energy distribution, e.g. radiators, underfloor heating system
DHW System components for DHW heating
■
Not available System without DHW heating
■
Cylinder with one sensor DHW cylinder with 1 cylinder temperature sensor
■
Cylinder with one sensor
and DHW circulation
pump
DHW cylinder with 1 cylinder temperature sensor and DHW circulation pump
External heat generator In conjunction with the EM-HB1 extension kit (accessories):
Configuration of the external heat generator
■
Function not available System without external heat generator
■
Central heating without
pump
For external heat generators without integral circulation pump
■
Central heating with
pump
For external heat generators with integral circulation pump
Filling assistant
System pressure Select the system pressure values.
■
Set value Set value of the heating water side system pressure in bar
■
Range Tolerance range of the system pressure in bar: If this value deviates for a deter-
mined period by more than the given range, warning message A.11 appears.
Filling Fill the system with heating water.
■
Filling heating/cooling
circuit 2
See chapter "Filling heating/cooling circuit 2" on page 107.
■
Filling DHW See chapter "Filling the remaining consumer circuits" on page 107.
■
Filling defrost buffer
■
Filling heating/cooling
circuit 1
■
Building up the system
pressure
See chapter "Building up the system pressure" on page 110.
Commissioning, inspection, maintenance
Commissioning the system (cont.)
6222080

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