Converting Gas Type On Burner Control Unit; Altitude Adjustment - Viessmann Vitocrossal 200 CM2 400 Service Instructions Manual

Vitocrossal 200, CM2 400, 500, 620 and 620 TX Service
Steps – Commissioning, Inspection and Maintenance

Converting gas type on burner control unit

To implement the changes the burner has to be in
stand-by, Status "0", Service "C".
1. Press button S F, hold for more than 2 seconds
and the " " in the display area D will flash.
2. Press button E until "6" appears in the Service
Y
display B.
3. Press button S F, until "6" appears in the Status
display A.
4. Press button E until "2" appears in the Service
Y
display B.
5. Press button S F until "2" appears under Status A.
6. The current type of gas will be displayed under Service
window (0 = NG, or 1 = LPG).
7. Press buttons E or
Y
"1" for LPG.
8. Press button S F to confirm. Upon successful
completion "1" will be displayed under Service for
a short time. Repeat procedure if "0" appears.
9. Press button S F to exit setting mode and return
to operating mode.
10. Press button R C for more than 2 seconds and the
system restarts and the settings will be applied.
Note: Each time the burner restarts, the setup parameters,
max. input, gas type and altitude will show up on
the display as in the table below.
Max. Input: "1; 70...100" = Modulation Level %
Gas Type: "2; NG"
"2; LPG"
Altitude: "3; LA"
"3; HA"
G to set "0" for NG and
B
= Natural Gas or
= Liquid Propane Gas
= Low Altitude
= High Altitude)
Commissioning, Inspection, Maintenance
(continued)

Altitude adjustment

To implement the changes the burner has to be in
stand-by, Status "0", Service "C".
1. Press button S F, hold for more than 2 seconds and
the " " in the display area D will flash.
2. Press button E until "6" appears in the Service
Y
display B.
3. Press button S F, until "6" appears in the Status
display A.
4. Press button E until "3" appears in the Service
Y
display B.
5. Press button S F until "3" appears in the Status
display A.
6. The current altitude will be displayed under Service
display B (0 = Low Altitude, or 1 = High Altitude).
7. Press buttons E or
Y
"High Altitude". "1" will be displayed under Service
for a short time.
8. Press button S F to confirm. Set again to "1" if "0"
appears.
9. Press button S F to exit setting mode and return to
operating mode.
10. Press button R C for more than 2 seconds and the
system restarts and the settings will be applied.
11. Fill out and apply "Altitude Conversion" label next to
Rating Plate.
12.Fill out and fax conversion report.
Note: Each time the burner restarts, the setup parameters,
max. input, gas type and altitude will show up on
the display as in the table below.
Max. Input: "1; 70...100" = Modulation Level %
Gas Type: "2; NG"
"2; LPG"
Altitude: "3; LA"
"3; HA"
G until "1" appears for
B
= Natural Gas or
= Liquid Propane Gas
= Low Altitude
= High Altitude)
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