7 Start-up
16
Installation and maintenance instructions SUSTAIN ..s 0020200967_00
◁
The display switches to the basic display.
6.3
Using check programmes
By activating various check programmes, you can trigger
various special functions on the product.
Check programmes
–
Overview (
→
Page 28)
6.3.1
Calling up the check programmes
1.
Hold the
button down for more than 5 seconds.
◁
All symbols are shown in the display.
◁
is shown in the display.
2.
Press and hold the
button for five seconds.
◁
is shown in the display.
3.
Press the
or
button to select the check
programme.
4.
Press the
button to confirm.
◁
on
is shown in the display and the programme
starts.
5.
Press the
and
buttons at the same time whilst
running a check programme.
◁
The heating water temperature and the filling pres-
sure for the heating installation are shown altern-
ately in the display.
6.
Press the
button to return to the check programme.
◁
The display shows the check programme.
7.
Press the
button to finish the check programme.
◁
OFF
is shown in the display.
8.
Press and hold the
button for 3 seconds to finish
the check programmes.
◁
End
is shown in the display.
◁
The display switches to the basic display.
Note
If you do not press any button for 15 minutes,
the current programme is automatically can-
celled and the basic display is shown.
6.3.2
Displaying the pressure and temperature of
the heating during a check programme
1.
Press the
buttons simultaneously.
◁
Display the filling pressure in the heating installation.
◁
Display the heating flow temperature.
2.
Press the
button to display the check programme
currently running.
7
Start-up
7.1
Carrying out the initial start-up
Initial start-up must be carried out by a customer service
technician or an authorised competent person using the first-
commissioning-checklist. The first-commissioning-checklist
in the appendix (
→
Page 40) of the installation instructions
must be filled in and stored carefully along with the unit's
documentation.
▶
Carry out the initial start-up using the first-commission-
ing-checklist in the appendix.
▶
Fill out and sign the first-commissioning-checklist.
7.2
Checking the type of gas
Make sure that the product is set up correctly by checking
the type of gas. This ensures optimum combustion quality.
▶
Check the type of gas as part of routine product mainten-
ance work when replacing components, carrying out work
on the gas route and carrying out a gas conversion.
7.3
Checking the factory setting
The product's combustion has been factory tested and is
preset for operation with the gas group indicated on the iden-
tification plate.
▶
Check the information about the type of gas indicated on
the identification plate and compare this with the type of
gas available at the installation location.
Conditions
: The product design
is not compatible
with the local gas
group
▶
Do not start up the product.
Conditions
: The product design
is compatible
with the local gas group
▶
Proceed as described below.
7.4
Checking and treating the heating
water/filling and supplementary water
Caution.
Risk of material damage due to poor-qual-
ity heating water
▶
Ensure that the heating water is of suffi-
cient quality.
▶
Before filling or topping up the system, check the quality
of the heating water.
Checking the quality of the heating water
▶
Remove a little water from the heating circuit.
▶
Check the appearance of the heating water.
▶
If you ascertain that it contains sedimentary materials,
you must desludge the system.
▶
Use a magnetic rod to check whether it contains mag-
netite (iron oxide).
▶
If you ascertain that it contains magnetite, clean the sys-
tem and apply suitable corrosion-protection measures, or
fit a magnet filter.
▶
Check the pH value of the removed water at 25 °C.
▶
If the value is below 6.5 or above 8.5, clean the system
and treat the heating water.
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