Viessmann VITOCAL 151-A Installation And Service Instructions Manual page 70

Commissioning, inspection, maintenance
Commissioning the system
Procedure
System scheme
Heating/cooling circuit 1 to
Heating/cooling circuit 4
Function
■
Type
■
Operating mode
■
DHW
No DHW
■
Cylinder with one sensor DHW cylinder with 1 cylinder temperature sensor
■
Cylinder with one sensor
■
and DHW circulation
pump
Low loss header/buffer
cylinder
Not available
■
Buffer cylinder, heating
■
only
DHW heating upstream
■
of buffer cylinder
Filling assistant
System pressure
Set value
■
Range
■
Filling
Filling DHW
■
Filling defrost buffer
■
Filling heating/cooling
■
circuit 1
Building up the system
■
pressure
Venting
70
(cont.)
Explanations and references
Configuring the heating/cooling circuits
Not available
■
Heating/cooling circuit without mixer
■
Heating/cooling circuit with mixer (not for heating/cooling circuit 1)
■
Type of energy distribution, e.g. radiators, underfloor heating system, etc.
Heating only
■
Cooling only
■
Heating and cooling
■
System components for DHW heating
System without DHW heating
DHW cylinder with 1 cylinder temperature sensor and DHW circulation pump
Settings for the consumer circuits according to the system components
System with heating water buffer cylinder with 1 buffer temperature sensor
DHW heating with an integrated DHW cylinder
Select the system pressure values.
Set value of the heating water side system pressure in bar
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.
Fill the system with heating water.
See chapter "Filling the consumer circuits" on page 74.
See chapter "Building up the system pressure" on page 77.
The system is vented via the quick-action air vent valve in the outdoor unit: See
chapter "Venting the system" on page 78.
Note
If the outdoor unit is not yet connected, connect both the flow and return connec-
tions of the outdoor unit to the indoor unit on site. Fit an air vent valve into this
hydraulic connection and use it to vent the system: See page 40.
Note
The venting process can take up to 20 min.