Switching Heating Mode Off (Summer Mode); Adjusting The Room Thermostat Or Weather Compensator; Status Displays - Vaillant ecoCRAFT VKK GB SERIES Operating Manual

4 Operation

4.5.3 Switching heating mode off (summer mode)

1
Fig. 4.8 Switching off heating (summer operation)
You can switch off the heating in summer without
switching off the hot water supply.
• Turn the rotary knob (1) for setting the heating feed
temperature all the way to the left.
4.5.4 Adjusting the room thermostat or weather
compensator
1
Fig. 4.9 Setting a room thermostat or weather compensator
• Set the room thermostats (1), weather compensators
or radiator thermostat valves (2) as specified in the
operating manuals for these accessories.
12
2
4.6

Status displays

1
Heizbetrieb - Bren
2
Fig. 4.10 Status displays
The status displays provide information on the operat-
ing status of the unit.
• Press the "i" button (2) to activate the status dis-
plays.
The display (1) then shows the individual status codes,
e.g. "S. 4" for burner operation. The table below ex-
plains the most important status codes. The displayed
status code is additionally explained by a complementa-
ry plain text message on the display of the DIA system,
e.g. for "S. 4": "Heating mode, burner on".
In switching phases, for example on starting up again
after the flame was extinguished, the status message
"S." briefly appears.
• Press the "i" button (2) again to switch the display
back to normal mode.
Display Meaning
Displays during heating operation
S. 0 Heating, no heat demand
S. 1 Heating mode, fan start-up
S. 2 Heating mode, pump flow
S. 3 Heating mode, ignition
S. 4 Heating mode, burner on
S. 6 Heating mode, fan overrun
S. 7 Heating mode, pump overrun
S. 8 Heating, remaining cut-off time xx min
S.31 no heat demand, summer operating mode
S.34 Heating mode, frost protection
Displays in storage tank charging
S.20 Hot water requirement
S.22 Hot water handling, pump flow
Page 24 Hot water mode, burner on
Table 4.1 Status codes and what they mean (selection)
Operating manual ecoCRAFT 0020058717_03