Viessmann MatriX Service Instructions For Contractors page 32

Cylinder burner for natural gas e and ll

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Burner control unit

Resetting operating parameters to their delivered condition

Resetting operating parameters to their delivered con-

dition:

1. S longer than 2 s, " " flashes.

until "6" is shown under Service.

3. S "6" is displayed under Status.

Manual mode and service indicator

To call up the service indicator and for manual opera-

tion the burner must be running. The service indicator

shows the current modulation level in %.

Press the following buttons:

1. /S simultaneously for longer than 2 s.

The burner switches to manual mode. "P"

appears on the display under Status and the

current modulation level flashes under Service.

(cont.)

until "0" is shown under Service.

5. S "1" is shown under Status and "dEL" under Serv-

ice.

6. S to confirm. If reset successfully, "1" is shown

under Service; if it failed, "0" is shown.

7. S to change to the operating display.

for the lower heating output, until "0" is shown

under Service.

for the upper heating output, until "100" is

shown under Service.

4. /S simultaneously for longer than 2 s.

The burner returns to modulating mode.

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Proflame vm iv