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Commissioning, inspection, maintenance
Commissioning the system
01. Check the heating system pressure.
Permiss. operating
pressure
Minimum operating
pressure
Danger
If the operating pressure is too low, excess
temperatures in the flue system can cause
leaks. Escaping flue gas can cause life
threatening carbon monoxide poisoning.
Ensure the minimum operating pressure
with a minimum pressure switch.
02. Check that the ventilation facility in the installation
room is open and sufficiently large.
03. Check control cables:
Connection and kink-free routing
■
Application and seating of retaining clips
■
04. Open the gas line shut-off valves.
05. Check the gas supply pressure.
06. Switch ON the mains isolator (outside the installa-
tion room).
07. Switch on the system ON/OFF switch at the user
interface of the control unit.
Vitotronic operating instructions
If "Burner fault" and
1.
to acknowledge the fault message.
2.
to reset the burner.
Note
The boiler can enter a fault state during commis-
sioning if the gas line carries insufficient gas.
Purge the gas line to the outside again and reset
the burner. The cover label on the gas line in front
of the gas train must be removed.
Where present: Check motorised flue gas damper (flue gas cascade acces-
sory).
The flue gas damper must be closed in its zero volt
state (plug 53).
10
(cont.)
6 bar (0.6 MPa)
0.5 bar (50 kPa)
appear on the display:
08. Check the function of the neutralising system.
Neutralising system operating instructions
09. Check all gaskets and plugs, and retighten if nec-
essary.
Note
Recommendation: Check all connections on the
heating water side for leaks after approx.
500 hours run. See page 22.
10. Check the boiler door and flue gas cover a few
days after commissioning. In the event of leaks,
tighten the screws in the boiler door with 30 Nm.
Tighten the flue gas collector diagonally with
10 Nm until there are no leaks.
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