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7
Heat cell with gas burner
5
Mains plug, blower
6
(16)
(17)
6
/7
× fixing screws (burner flange/boiler body)
8
Remove the burner blower with burner flange from the boiler
body.
9
Unscrew the burner surface from the burner flange. When lifting
off the burner surface, pay special attention that it is not dam-
aged through contact with the electrodes.
Fig. 7-7
Burner surface removal (example shown for burner
1
Positioning pin for burner surface
2
Seal for burner surface
3
Burner surface
(16)
(17)
4
8
/10
× fixing screws (burner surface/burner flange)
10 Remove burner flange seal
burner surface
(Fig.
7-7, item 2) and always replace during
installation.
INFORMATION
If there is dirt on the burner surface, remove it carefully
from the perforated plate side with a vacuum cleaner.
Never blow over the burner surface with compressed air.
This could cause changes to the surface structure that may
initiate burner noises in the future.
(16)
GCU compact 315 / 320 / 515 / 520 (Biv)
(17)
GCU compact 524 / 528 (Biv)
Installation and operating instructions
50
(Fig.
7-7).
(16)
(Fig.
7-6, item 2) and seal for
Fig. 7-8
Cleaning the burner surface
11 Inspect the burner surface
necessary.
Burner installation
1
Assemble the burner in the reverse order described for its re-
moval.
▪ When installing the burner surface in the burner flange, proceed
)
with caution and ensure correct positioning
Visually inspect again after installation. The fabric must not be
damaged.
▪ Fully install a new burner flange seal and a new seal for the
burner surface.
Available seal kits:
EDS 15‑20 GCU2
EDS 24‑28 GCU2
▪ Pay attention to the stipulated tightening torque (see
Chap.
12.3).
2
Check the gas line for leakage.
3
Start the burner. Check the function, leak-tightness at the burner
flange and the settings
Floor-standing gas condensing boiler with integrated heat storage
(Fig.
7-7, item 3) for damage, renew if
(Fig.
7-7, item 1).
(16)
,
(17)
(see Chap.
7.3.3).
008.1543899_02 – 04/2019 – EN
Gas Combi Unit
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