Commissioning, inspection, maintenance
Commissioning the system
A
Fig. 3
14
(cont.)
1. Check the heating system pressure.
Permiss. operating pres-
sure
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.
2. With open flue operation: Check that the ventilation
facility in the installation room is open and suffi-
ciently large.
3. Open the gas line shut-off valves.
4. Check the static and the supply pressure.
"MatriX-Disk burner" service instructions
5. Check the setting at air pressure switch 1
Rated heating output 800 kW: 2 mbar (0.2 kPa)
■
■
Rated heating output 1000 kW: 4 mbar (0.4 kPa)
6. Switch ON the mains isolator (outside the installa-
tion room).
7. Switch on the ON/OFF switch at the programming
unit of the control unit.
Vitotronic control unit operating instructions
Note
During commissioning, the appliance may enter a
fault state due to remaining airlocks in the gas line:
"Burner fault" and
■
Purge the gas line again.
■
Reset burner:
to acknowledge the fault message
to reset the burner.
8. 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 12.
6 bar (0.6 MPa)
0.5 bar (50 kPa)
:
A
are shown on the display