Initial start-up
2
Installation and maintenance instructions for wall-mounted condensing gas boiler 600 - 11S/19S/24S/24C • 02/2006
25
Subject to modifications resulting from technical improvements!
Buderus • http://www.buderus-domestic.co.uk
2.1.5
Checking the type of gas and supply
2.1.6
Adjusting the flow temperature
z
Open the cover to the 2nd operating level (fig. 33, item 1).
z
Adjust the knob (fig. 33, item 2) to the desired flow
temperature (table 6) for your particular installation.
2.1.7
Adjusting the hot-water temperature for 24C only
z
Adjust the heat-retaining and outlet temperature (table 6)
using the hot-water temperature regulator (fig. 33, item 5).
Type of gas supply
Gas nozzles
∅
[mm]
Venturi
tubes
11S
19S/24(C)
Natural gas
H
(G20)
5.55
6.5
Standard
Venturi
tubes
LPG
3.40
4.15
Standard
Venturi
tubes
Table 5 Gas-nozzle diameter
CAUTION
The burner must only be put into operation with
the correct nozzles (table 5).
NOTE
Observe stickers attached to Venturi tubes.
Controller
setting
Flow temperature
[°C]
Heat-retaining
temperature (only 24 C)
[°C]
Outlet temperature
(only 24 C)
[°C]
Hot-water temperature
of external tanks
[°C]
1
40
-
60
27
2
44
DO NOT use setting no. 2
31
3
48
40
40
34
4
53
43
43
38
5
58
46
46
41
6
62
49
49
45
7
67
52
52
49
8
71
55
55
52
9
76
58
58
56
10
80
60
60
60
Table 6 Temperature settings
Fig. 33 Control box
Key to Fig. 33:
1:
Cover for second operating level
2:
Flow temperature knob
3:
Heat-capacity jumper
4:
Heating capacity knob
5:
Hot-water temperature knob
6:
Green blocking plate
2
1
2
10
0
1
11
KW
10
1
1
3
4
5
6
1
NOTE
Factory setting of the controller is "
10
"
(around 83 °C).
NOTE
Factory setting of the controller is "
10
".
To avoid energy losses set the controller to
setting "
1
" (fig. 33, item 5). Remove the green
blocking plate before making the adjustment.
