Checking All Connections On The Heating Water Side And Dhw Side For Leaks; Checking The Power Supply; Designating Heating Circuits - Only For Weather-Compensated Control Units; Checking The Gas Type - Viessmann VITODENS 200-W Installation And Service Instructions Manual

Commissioning, inspection, maintenance
Checking all connections on the heating water side and DHW side for
leaks

Checking the power supply

Designating heating circuits - only for weather-compensated control units

In the delivered condition, heating circuits are designa-
ted "Heating circuit 1", "Heating circuit 2" and "Heating
circuit 3" (if installed).
If the system user prefers, heating circuits can be re-
designated to suit the specific system.

Checking the gas type

The boiler is equipped with an electronic combustion
controller that adjusts the burner for optimum combus-
tion in accordance with the prevailing gas quality.
■ For operation with natural gas, no adjustment is
therefore required across the entire Wobbe index
range.
The boiler can be operated in the Wobbe index
range 9.5 to 15.2 kWh/m
■ For operation with LPG, the burner must be conver-
ted (see "Gas type conversion" on page 30).

Gas type conversion (only for operation with LPG)

A
Fig. 23
30
3 3
(34.2 to 54.7 MJ/m ).
Entering names for heating circuits:
Operating instructions
1. Determine the gas type and Wobbe index by ask-
ing your local gas supply utility or LPG supplier.
2. For operation with LPG, convert the burner (see
page 30).
3. Record the gas type in the report on page 119.
1. Set adjusting screw
A
2. Turn on ON/OFF switch "
3. Select the gas type in coding address "82":
Calling up code 2
■
Call up "General" (weather-compensated control
■
unit)
or
Group "1" (constant temperature control unit)
■ In coding address "11", select value "9"
In coding address "82", select value "1" (LPG
■
operation)
In code "11", select value
■
■ End service functions.
4. Open the gas shut-off valve.
5. Affix label "G 31" in a clearly visible position near
the gas train on the cover panel.
The label is supplied with the technical documenta-
tion.
on the gas train to "2".
".
8
"9".
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