Settings For Heating; Setting The Flow Temperature; (When Using A Controller); (No Controller Connected) - Vaillant atmoCRAFT VK SERIES Operating Manual

4 Operation
4.5

Settings for heating

4.5.1 Setting the flow temperature (when using a
controller)
1
Fig. 4.7 Setting the feed temperature when using a controller
To comply with the regulations concerning the energy-
saving requirements of heating-technology
installations and hot water installations (heating
installation regulations - HeizAnlV), your heating
system must be fitted with a weather-controlled
controller or a room-temperature controller.
In this case, the following setting must be undertaken:
• Turn the rotary knob (1) for setting the heating feed
temperature all the way to the right.
The flow temperature is automatically adjusted by the
controller (for information see its operating manual).
Note!
Your heating engineer can provide information
concerning the control system fitted to your
heating system.
10
4.5.2 Setting the flow temperature (no controller
connected)
2
1
Fig. 4.8 Feed temperature setting without heating controller
If there is no external controller, set the flow
temperature using the knob (1) according to the outside
temperature. We recommend the following settings:
– Left position (but not all the way) in spring and
autumn: Outside temperature 10 to 20°C
– Mid-position setting in reasonably cold weather:
Outside temperature 0 to 10°C
– Right position in very cold weather:
Outside temperature 0 to –15 °C
When setting the desired temperature, the value is
shown on the display (2) of the DIA-System. After five
seconds the display returns to standard mode (the
current heating flow temperature).
Normally you can adjust the knob (1) continuously up to a
feed temperature of 75 °C. However, if higher
temperatures can be set on your appliance, your engineer
has made adjustments so that you can operate the
heating system at higher feed temperatures up to 85 °C.
Operating manual atmoCRAFT