viessmann vitodens 200 manuale istruzioni

The display briefly for approx. 2 seconds. shows adopted, then the address 2.

Safety instructions explained Regulations Danger Observe the following during service This symbol warns against the work: risk of injury.

Ancillary components, spare and Use only original Viessmann spare wearing parts parts, or equivalent parts that have been approved by Viessmann.

Thoroughly flush the entire heating system prior to filling with water.

Close the boiler fill drain valve switched ON before filling began: Start the control unit and in code 1, set coding address 2F:2.

Close the shut-off valves on the heating water side.

Connect the drain hose on upper valve B with a drain outlet.

Open valves A and B, and vent at mains pressure, until no sound of escaping air can be heard.

Note To call up code 1 and for setting the coding address, see page 39.

For function and sequence of the venting program, see page 105.

Record the gas type in the service address 1E at the control unit.

Check fan cables iter enables start 51 seconds and fan plug-in (contact closed fault connections, between term- check fan inals X8.10 and X8.11) Ignition Fault Check the ignition module (control.

Should the actual value deviate by more than 1 from the above range, imple- ment steps from page 16 (possibly replace the burner).

Release gas connection pipe F.

Switch OFF the control unit ON OFF switch and the mains electri- 5.

Checking the burner gauze assembly Replace the burner gauze assembly if it is damaged.

If required, clean combustion chamber A and heating surfaces B with a brush, or flush with water.

Important information Scratches on parts which are in contact with flue.

Switch OFF the control unit, shut off the cold water supply line and drain the secondary (DHW) side of the boiler.

Pull the line off and connect test equipment (adaptor line available as accessory).

Set the upper rated output.

Constant temperature control unit: Press K and d simultaneously.

Installation instructions for LON communication module Note Data transfer via the LON system can take 2 to 3 minutes.

Adjusting heating curves (only for weather-compensated control units) The heating curves illustrate the rela- Settings in the delivered condition.

Modify the slope in code 1 with cod- ing address d3 (see page 39).

The value will be automatically adopted after approx.

Accordingly, the heating curve is adjusted along set room tempera- ture axis C, which results in modi- fied startshutdown characteristics of the heating circuit pumps, if the.

Example 2: Modifying the reduced room temperature from 5 C to 14 C A Boiler water or flow temperature in C.

The display briefly for approx.

Viessmann Vitodens 200 Manuale Istruzioni