Vaillant VRC 630, Operating Manual

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Installation Instructions VRC 630 0020095108_00
Glossary
Heating flow temperature
Your boiler heats water which is then pumped through
your heating system. The temperature of this hot water
as it leaves the boiler is referred to as the flow tempera-
ture.
Heating installation
The heating installation heats up the apartment and
produces hot water.
Heating pump
A heating pump in a heating installation is a centrifugal
pump which conveys the heated heating water to the
radiators and house service connection stations and at
the same time feeds back the cooled water from the
return pipes so that the boiler can heat it up again.
HK1
HK1 is the standard name (factory setting) for heating
circuit 1 of your heating installation. You can change this
name.
Hot water generation
Your boiler heats the water in the DHW cylinder to the
selected target cylinder temperature. If the temperature
in the DHW cylinder falls by specific amount, the water
is heated up again to the target cylinder temperature.
You can programme time slots for heating up the con-
tents of the cylinder.
Installer level
The Installer level displays the specific parameters that
the heating engineer can set/change. This level is reser-
ved for the expert technician and is therefore protected
by an access code.
Legionella
Legionella are water-borne bacteria which can quickly
propagate and cause serious lung diseases. They occur
wherever heated water provides the optimum condi-
tions for multiplication. Temporarily heating the water
to above 65 °C kills off the legionella.
Level of protection
The level of protection indicates the suitability of elec-
trical equipment for various ambient conditions and
additionally the protection of people from potential
hazards during their use.
Example:
The controller has Level of Protection IP 20. The two
digits are significant here.
The first digit indicates the protection of the equipment
from contact, e.g. with objects or body parts, which
could penetrate into dangerous areas of the equipment
(2 = objects > 12.5 mm Ø).
The second digit indicates the protection of the equip-
ment from the ingress of water (0 = no protection).
Manual operation
In manual mode you can actuate every single sensor,
pump and mixer in the heating circuit separately and
check its functionality.
Maximum limit outside temperature
The maximum limit outside temperature is the outside
temperature at which the demand-dependent heating
shutdown (automatic shutdown in summer) takes effect.
The maximum outside temperature limit can be set
separately for each heating circuit within a range of 5 to
50 °C. The default setting is 21 °C. The required room
temperature is set to 20 °C for each heating circuit
(default setting). If the required room temperature is to
be changed in the basic menu, the maximum limit for
the outside temperature must also be changed (at least
1 °C higher than the required room temperature).
Maximum pre-heating (heating)
With this function, activation of the heating circuit
before the time slot is enabled, with the aim of achie-
ving the set day value at the beginning of the time slot.
The function is only performed for the first time slot of
the day. The beginning of heating is established, depen-
ding on the outside temperature.
Influence of outside temperature:
OT
≤
–20 °C : set preheating period
OT
≥
+20 °C : no preheating period
Operator level
The Operator level displays the basic parameters which
you can set/change without any special prior knowledge
during normal operation. You can adapt your heating
installation to your needs by setting the parameters
accordingly.
Outside temperature correction
The sensor value of the outdoor sensor which is con-
nected to the solar system controller can be changed by
a value of +/- 5 °C to compensate external influences.
This means that the measured external temperature is
changed to the set value.
Setting range:
–5 K ... +5 K,
Basic setting: 0 K
Preference
Preference works like an isolating circuit for only one
individual boiler. The cylinder is directly connected
hydraulically to the boiler.
All the pumps in the heating circuits continue to run
during cylinder charging.
Protection class
Protection class denotes the classification and identifi-
cation of electrical equipment with reference to the
existing safety measures to prevent electric shocks.