Vaillant VRC 630, Руководство по эксплуатации

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You have two options for defining the days for which
your time slots should apply:
1st option
You can enter time slots for individual days.
Example:
Mon
09.00 - 12.00 hrs.
Tue 10.00 - 12.00 hrs.
2nd option
You can combine several days into blocks.
Example:
Mon-Fri
09.00 - 12.00 hrs.
Sat-Sun 12.00 - 15.00 hrs.
Mon-Sun 10.00 - 12.00 hrs.
You can define up to three time slots for each option.
You can control the hot water temperature in a con-
nected DHW cylinder in the same way using the control-
ler: The
time slots you define specify when the hot water at your
desired temperature is available.
However there is no set-back temperature for hot water
generation. Hot water generation is switched off at the
end of a time slot.
Heating curve
The heating temperature is controlled indirectly by
means of a heating curve. The heating curve shows the
relationship between the outside temperature and the
flow temperature.
The flow temperature is the temperature of the heating
water as it leaves the boiler.
You can set the heating curve individually for each hea-
ting circuit.
You have the option of selecting various heating curves
to match the control system optimally to your apart-
ment and to the heating installation.
Example of a heating curve
Max Flow Setpoint.
Outside temperature in °C
in °C
90
80
70
60
50
40
30
20
20 15 10 5 0 -5 -10 -15 -20
1.5
4.0 3.5 3.0 2.5 2.0
Heating curves
1.2
1.0
0.6
0.2
Fig. 3.3 Diagram with heating curves
Example: If heating curve 1.5 is selected, a flow
temperature of 75 °C is required for an external tempe-
rature of -15 °C.
Max Flow Setpoint.
Outside temperature in °C
in °C
90
80
70
60
50
40
30
15
Axis a
18
20
22
10 5 0 -5 -10 -15 -20
1.5
Fig. 3.4 Parallel offsetting of the heating curve
If heating curve 1.5 is selected and 22 °C rather than 20
°C is specified as the room target temperature, the hea-
ting curve is displaced as shown in
Fig. 3.4 . The heating
curve is displaced in parallel along the 45° axis accor-
ding to the value of the room target temperature. This
means that when the outside temperature is 0 °C, the
controller provides a flow temperature of 67 °C.
i
Make the required basic setting of the hea-
ting curve while installing the heating system.
12
Installation Instructions VRC 630 0020095108_00
3 Equipment and functional description