Commissioning The System - Viessmann VITOCROSSAL 200 CM2 Service Instructions For Contractors

Conversion to LPG P

Commissioning the system

Danger
CO formation as a result of incorrect burner
adjustment can have serious health implications.
Always carry out a CO test before and after
work on gas appliances.
Tightness test
Gaskets on the boiler door and components that route
flue gas can be checked during operation with an
inspection mirror.
If required, remove the thermal insulation components.
Traces of condensate on the outside of the flue gas
collector or on sections of thermal insulation also indi-
cate leaks.
Note
It is essential to check the burner settings with the
boiler heated to operating temperature (min. 40 °C).
Also check in the partial load range.
Boiler control unit service instructions
Status Service
R
S
Fig. 9
Commissioning, inspection, maintenance
(cont.)
6. Use
"S". If applied successfully, "1" will be shown briefly
on the display under "Service", or "0" will be shown
if unsuccessful.
7. Press "S" again to switch to the operating display.
8. Press "R".
The system will be restarted.
Note
The setting parameters are displayed each time
the system is restarted.
1 Max. output (70-100 %)
The output setting is not limited. The base load
can also be set (CS configuration).
2 Gas type (NG = natural gas or LPG = liquid gas)
3 Installation height (LA or HA)
(not available)
4 Temperature of temperature limiter
5 Integral for minimum pause time
6 Cycle protection method
01. Check the heating system pressure.
Permissible operating pressure: 6 bar/0.6 MPa
02. For open flue operation:
Check that the ventilation facility in the installation
room is open.
03. Check control cables:
Connection and kink-free routing
■
Fixing and firm seating of retaining clips
■
04. Check the gas supply pressure (for set value, see
page 18).
05. Open the gas line shut-off valves.
06. Switch ON the mains isolator (outside the installa-
tion room).
or to select "1" for LPG and confirm with
15