7 Start-up
20
Installation and maintenance instructions ecoTEC exclusive 0020186710_06
7.9
Purging the heating installation
1.
Select the check programme
P.00
.
◁
The product does not start up, the internal pump
operates intermittently and purges either the heating
circuit or the hot water circuit.
◁
The display shows the filling pressure of the heating
installation.
2.
Make sure that the filling pressure of the heating install-
ation does not fall below the minimum filling pressure.
– ≥
0.08 MPa (
≥
0.80 bar)
◁
At the end of the filling procedure, the filling pres-
sure of the heating installation should be at least
0.02 MPa (0.2 bar) above the counter-pressure
of the expansion vessel ("Exp") (P
Installation
≥
P
Exp
+
0.02 MPa (0.2 bar)).
3.
If there is still too much air in the heating installation at
the end of the check programme
P.00
, repeat the check
programme.
7.10
Filling the condensate siphon
1
1.
Remove the lower section
(1)
of the siphon.
2.
Fill the siphon trap with water up to 10 mm below the
upper edge.
3.
Secure the lower section of the siphon to the condens-
ate siphon.
7.11
Starting up the heat generator
The product has a gas-adaptive heat cell that automatically
adjusts to the relevant gas type. We recommend that you
start up the heat cell using the following steps. Calibration
establishes the operational readiness. This calibration is
also a prerequisite for the correct measurement of gas flow
pressure and CO
₂
content.
–
Deleting existing calibration values
–
Calibrating in maximum mode
–
Calibrating in minimum mode
▶
Install the front casing.
▶
Ensure that there is sufficient hot water circulation.
▶
Navigate to
Menu
→
Installer level
→
Check programs
and confirm by pressing
.
▶
Start check programme
P.04
.
◁
Existing calibration points are deleted. The display
shows the successful deletion.
▶
Start check programme
P.01
.
–
Duration: 7-10 minutes. Automatic programme end
after 15 minutes
◁
If the circulation in the heating system is sufficient,
the test routine starts and determines the calibration
points for maximum power.
S.93
is displayed.
▽
S.85
is displayed. The circulation in the heating sys-
tem is not sufficient.
◁
After max. 10 minutes,
S.04
is displayed.
▶
Press
to end the check programme.
▶
Start check programme
P.02
.
–
Duration: 3-5 minutes. Automatic programme end
after 15 minutes
◁
If the circulation in the heating system is sufficient,
the test routine starts and determines the calibration
points for minimum power.
S.93
is displayed.
▽
S.85
is displayed. The circulation in the heating sys-
tem is not sufficient.
◁
After max. five minutes,
S.04
is displayed.
▶
Press
to end the check programme.
◁
All calibration points have been determined.
7.12
Gas inspection
7.12.1 Checking the gas flow pressure
1.
Close the gas isolator cock.
2.
Remove the front casing. (
→
Page 9)
1
2
3.
Use a screwdriver to undo the sealing screw of the
measuring nipple
(1)
at the gas valve.
4.
Connect a pressure gauge
(2)
to the measuring nipple
(1)
.
5.
Open the gas isolator cock.
