Opening The Isolator Devices; Switching On The Product - Vaillant ecoTEC pure Operating Instructions Manual

4 Function
Button Meaning
– Calling up the additional func-
+
tions
– Navigating between individual
or
menu items
– Increasing or decreasing the
chosen set value
– On/off button (press and hold
the button for < 3 s)
– Reset button (press and hold
the button for > 3 s)
Both selection buttons have a soft key
function, i.e. their function can change.
If, for example, you press the left-hand
selection button in the basic display,
the current function switches from
mestic hot water temperature) to
Adjustable values are always displayed as
flashing.
You must always confirm a change to a
value. Only then is the new setting saved.
You can press to cancel a procedure at
any time. If you do not press any buttons
for longer 15 minutes, the display returns
to the basic display.
4.1.1 Basic display
The basic display shows the current
product status.
To return to the basic display, press the
button. If you do not press any buttons
within three minutes, the display becomes
dark and automatically switches back to
the basic display.
If an error message appears, the error
code will be shown on the basic display.
The available functions vary depending on
whether:
10
– A room thermostat is connected to the
product or not
– A domestic hot water cylinder with tem-
perature sensor is connected to the
product or not
4.1.2 Operating levels
The product has two operating levels:
– The operator level shows the most im-
portant information and offers set-up
options which do not require any special
prior knowledge.
– Specialised knowledge is required in or-
der to use the installer level (access for
competent persons). This is therefore
protected by an access code.
(Do-
(Back).
Operator level – overview (→ Page 17)

4.2 Opening the isolator devices

1. Ask the competent person who in-
stalled the product to explain to you
where these isolator devices are loc-
ated and how to handle them.
2. Open the gas isolator cock installed
on-site.
3. Open the gas isolator cock, which is
directly below the product or in its im-
mediate vicinity.
4. Open the service valves in the heating
installation's flow and return.
5. Open the cold water stop valve.

4.3 Switching on the product

1. Only start up the product once the cas-
ing has been completely closed.
2. If the display is switched off, press
for less than 3 seconds.
◁
The basic display is shown in the
display.
Operating instructions ecoTEC pure 0020258017_00