Vaillant multiMATIC VRC 700f/4 Operating Instructions Manual page 17

5 Operating and display functions
5.2.6.1 Setting your language
1. Press the left-hand selection button repeatedly until the
basic display appears.
2. Press the left-hand selection button again.
3. Rotate the rotary knob clockwise until the dotted line
appears.
4. Turn the rotary knob anti-clockwise until the second list
entry above the dotted line is highlighted.
5. Press the right-hand selection button twice.
6. Turn the rotary knob until you find a language that you
understand.
7. Press the right-hand selection button.
5.2.7 Setting the date and time
Note
If you disconnect the entire heating installation
from the power supply, the time continues to run
correctly for 30 minutes. You then have to reset
the date and time.
5.2.7.1 Setting the date
Menu → Basic settings → Date/time → Date
–
Select this function to set the current date. All controller
functions that contain a date relate to the set date.
5.2.7.2 Setting the time
Menu → Basic settings → Date/time → Time
–
Select this function to set the current time. All controller
functions that contain a time relate to the set time.
5.2.8 Activating the automatic or manual change-
over to daylight saving time
Menu → Basic settings → Date/time → Daylight saving
time
–
You can use this function to set whether the controller
automatically changes over to daylight saving time, or
whether you want to do this manually.
–
Auto: The controller automatically changes over to day-
light saving time.
–
Manual: You have to manually change over to daylight
saving time.
Note
Daylight saving time means Central European
summer time: Start = last Sunday in March, End =
last Sunday in October.
If the outside temperature sensor is equipped with a DCF77
receiver, the daylight saving time setting is irrelevant.
5.2.9 Set display contrast
Menu → Basic settings → Display → Display contrast
–
You can set the display contrast in relation to the bright-
ness of the surroundings, to ensure that the display is
clearly legible.
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5.2.10 Activating Button lock
Menu → Basic settings → Display → Button lock
–
You can use this function to activate the button lock. After
one minute of not pressing any button or operating the
rotary knob, the button lock is active and you can no
longer change any functions unintentionally.
Each time you actuate the controller, the following mes-
sage appears on the display Button lock active To unlock,
press OK for 3 seconds. If you press and hold the OK but-
ton for 3 seconds, the basic display appears and you can
change functions. The button lock becomes active again if
you do not press any button or operate the rotary knob for
one minute.
To permanently remove the button lock, you must first re-
lease the button lock and then select the value off in the
Button lock function.
5.2.11 Setting the preferred display
Menu → Basic settings → Display → Preferred display
–
You can use this function to choose whether you see
the data for heating, cooling or ventilation in the basic
display.
5.2.12 Setting costs
You must specify all tariffs in the unit of currency per kWh for
the calculation to be correct.
If your energy supply company specifies the gas and elec-
tricity tariff in the unit of currency per m
gas and electricity tariff in the unit of currency per kWh.
If your energy supply company only offers one electricity
tariff, enter the same value for the High-tariff elec. rate
(→ Page 17) and Low-tariff elec. rate (→ Page 17) functions.
Round the amount up or down to one decimal place.
Example:
Costs
Tariff for aux. 11.3 currency
heater units/kWh
(Gas, oil, electricity)
Low-tariff elec. rate 14.5 currency
units/kWh
(heat pump)
High-tariff elec. rate 18.7 currency
units/kWh
(heat pump)
5.2.12.1 Setting the tariff for the auxiliary boiler
Menu → Basic settings → Costs → Tariff for aux. heater
–
The factor/value that is set requires the hybrid manager
to calculate costs correctly.
To set the correct factor/value, you will need to ask your
energy supply company what your gas and electricity tariff
is.
Operating instructions multiMATIC 0020237615_01
3
, ask for the precise
Setting/factor
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