Switching Off Heating (Summer Operation); Setting A Room- Or Outside Temperature Controller; Status Displays - Vaillant ecoTEC Instructions For Use Manual

4 Operation

4.6.2 Switching off heating (summer operation)

plus/exclusive
1
Fig. 4.14 Switching off heating (summer operation)
You can switch off the heating in summer without
switching off the hot water supply.
• Turn the knob (1) for setting the maximum radiator
temperature all the way to the left.
4.6.3 Setting a room- or outside temperature
controller
1
Fig. 4.15 Setting a room- or outside temperature controller
• Set the room thermostat (1) and/or the thermostatic
radiator valves (2) according to the instructions sup-
plied with the control(s).
Note
h
Vaillant offer room thermostat/time control ac-
cessories which give accurate and economic
room temperature control as well as improved
comfort.
12
2
The boiler will now operate automatically to provide
central heating for the conditions selected on the exter-
nal controls (ecoTEC combination boilers will also pro-
vide domestic hot water on demand).
After the boiler stops operating the pump will continue
to operate for a short period to fully disperse the heat
from the boiler.
Note
h
The boiler incorporates an anti-cycling eco-
nomiser control to prevent energy wasteful
ON and OFF operation of the boiler for short
periods when in the central heating mode.
When turning the room thermostat to a higher
setting there may therefore be a short delay
before the boiler operates.
4.7

Status displays

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1
Fig. 4.16 Status displays
The status displays provide information on the operat-
ing status of the appliance.
• Press the "i" button (1) to activate the status displays.
The display (2) then shows the current status code, for
example "S. 4" for burner operation. The table below
explains the most important status codes.
In switching phases, for example on starting up again
after the flame was extinguished, the status message
"S." briefly appears.
• Press the "i" button (1) again to switch the display
back to normal mode.
Instructions for use ecoTEC / 838402-05