31
Designating heating circuits - only for weather-compensated control units
In the delivered condition, the heating circuits are des-
ignated
"Heating circuit 1"
,
"Heating circuit 2"
and
"Heating circuit 3"
(if installed).
If the system user prefers, the heating circuits can be
designated differently to suit the specific system.
Enter names for heating circuits:
Operating instructions
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
3
(34.2 to 54.7 MJ/m
3
).
■
For operation with LPG, the burner must be conver-
ted (see "Gas type conversion" on page 31).
1.
Determine the gas type and Wobbe index by asking
your local gas supply utility or LPG supplier.
2.
For operation with LPG, convert the burner (see
page 31).
3.
Record the gas type in the report on page 136.
Gas type conversion (only for operation with LPG)
1
2
A
Fig. 23
1.
Set adjusting screw
A
on the gas train to "2".
2.
Turn on ON/OFF switch .
3.
Select the gas type in coding address "82".
■
Call up code 2
■
Call up
"General"
(weather-compensated control
unit)
or
Group 1 (constant temperature control unit).
■
Select coding address "11" and set value "9".
Confirm with
OK
. The display shows "11:0".
■
Select coding address "82" and set value "1"
(LPG operation). Confirm with
OK
.
■
Select coding address "11" and set value
≠
"9".
Confirm with
OK
. The display shows "11:0".
■
End service functions.
4.
Open the gas shut-off valve.
5.
Affix label "G31" (supplied with the technical docu-
mentation) next to the type plate.
Commissioning, inspection, maintenance
Checking all connections on the heating water side and DHW side for leaks
5773 216 GB
Содержание B2TA
Страница 12: ...12 2 5 1 4 2x 3 Fig 5 Installing the boiler Removing the front panels 5773 216 GB Installation ...
Страница 13: ...13 1 2 SW17 Fig 6 Installing the boiler Siting and levelling the boiler 5773 216 GB Installation ...
Страница 23: ...23 4 1 5 2 2x 3 Fig 16 Installing the boiler Fitting the front panels 5773 216 GB Installation ...
Страница 101: ...101 Parts lists Overview of assemblies 5773 216 GB Components ...
Страница 107: ...107 Parts lists Hydraulics 5773 216 GB Components ...
Страница 118: ...118 0004 0002 0005 0006 0001 0003 Fig 77 Parts lists Miscellaneous 5773 216 GB Components ...
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