- 41 -
MAINTENANCE
2 - CLEANING THE CONDENSOR
- Unclip the top of the boiler casing by pulling it
upwards (rep. A,
fig. 64 - page 43 - chapter VI -
MAINTENANCE),
- Unscrew the fixing screw (item no. F) from the
condenser cover (item no. G),
- For FCX 30 C models only:
• remove the swirlers (item no. N) of the tubes
(H) of the condenser (item no. 10),
- Clean the condensor tubes (item no. H) using a
bottle brush,
- Check that the combustion products can flow
freely :
• unscrew the plug to check the combustion pro-
ducts (item no. 15),
- Check that the sealing joint is properly position-
ned (item no. I) when replacing the cover:
Remarks:
- If after cleaning the temperature of the flue gas-
ses remains excessive (> 120°C), perform a boi-
ler check.
- Make sure that the sealing joint on the cover (item
no. I) are maintained in good condition and repla
-
ce it if necessary.
3 - BURNER MAINTENANCE
Annual burner maintenance is sufficient if it is pro-
perly adjusted.
- cleaning: See boiler instructions,
- check that the spray nozzles are in good condi-
tion (chapter V - COMMISSIONING, s.
section 6.3 -).
- check that there is no fuel leak.
4 - CHECKING ACCESSORIES
- Check annually that the safety and regulation de-
vices (3 bar safety valve, air bleed, safety control
box, etc.) are operating properly.
- Check that the condensate drain siphon is clean
(remove it, clean it, replace it and then fill it with
water).
- Also check that neither the installation nor the
boiler present any water or fuel leaks (leaks may
produce a risk for safety and shorten the lifes
-
pan).
- When it is frequently necessary to add water to
maintain pressure in the installation, even though
no leaks have been discovered, perform an ex
-
pansion vessel check (chapter VI - MAINTENAN-
CE, s. 5).
- Check the condition of the various seals (burner
flange, burner door, flue outlet, etc.).
- To avoid any sludging risk, it is recommended to
switch-on the circulator heater and to operate the
mixing control valve at least twice during the sum
-
mer (see the operating instructions).
G
F
10
FCX-72-3
I
F
G
H
10
15
N
Fig. 63
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