Viessmann VITOLIGNO 300-H Operating Instructions For The System User page 15

Heating system with ecotronic weather-compensated, digital boiler and heating circuit control unit

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Action in case of overheating

1. Open the front door.

2. Press green button A of the high

limit safety cut-out. You will hear a

faint "click". The high limit safety cut-

out has been reset.

3. Close the front door.

4. Acknowledge the excess tempera-

ture on the programming unit of the

control unit with d.

(cont.)

Boiler operation

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