Viessmann Vitodens 242-F Operations Instructions download pdf (Page 48)

7. Check the CO

content. Should the

actual value deviate from the above

ranges by more than 1%, implement

steps from page 47.

8. After testing, press OK.

9. Enter actual values into the service

report.

To set the upper/lower output:

1. Press OK and simultaneously for

approx. 4 s.

2. "Actuator test"

3. Select the lower output:

Select "Base load" "ON" and con-

firm with OK.

4. Select the upper output:

Select "Full load" "ON" and confirm

with OK.

Matching the control unit to the heating system

Subject to the equipment level, the control unit must be matched to the system. Var-

ious system components are recognised automatically by the control unit and the

relevant codes are adjusted automatically.

■ For the selection of an appropriate design, see the following diagrams.

■ For coding steps, see page 61.

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

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Viessmann Vitodens 242-F Operations Instructions Page 48