Expansion Vessel Pre-Inflation Pressure Check; Combustion Product Flues; Oil Filter - geminox FCX 22 C Technical Instructions

5 - EXPANSION VESSEL PRE-INFLATION PRESSURE CHECK

- Drop the pressure in the heating installation by
opening the drain cock or the safety valve (pres-
sure gauge reading under 0.5 bar).
- Check the pressure in the expansion vessel and
if necessary bring it back up to pressure, or repla-
ce it if the membrane is punctured (water present
in the inflating valve).

6 - COMBUSTION PRODUCT FLUES

- Have the combustion product outlet checked and
cleaned at least once a year (by qualified person-
nel). (non blocked conduit).
The outlet can be cleaned with running water.
The water flow must not be too great so that it can
be evacuated through the condensate outlet (∅
40).
- Be sure to maintain proper watertightness and
the unobstructed flow of the combustion pro-
ducts. Replace any damaged tightness seals if
necessary.

7 - OIL FILTER

Clean the oil filter yearly or in the event of premature
fouling (e.g. when filling the tank).
- Turn off the oil inlet cock,
• o unscrew the cap.
- To optimise the efficiency of the vessel:
• adjust its pre-inflation pressure in line with the
installation. It must correspond to the static
height of the installation (H) expressed in bars
(height between the highest point of the instal-
lation and the expansion vessel, with 10 me-
tres = 1 bar),
• adjust the filling pressure of the installation to a
value of over 0.2 bar above the pre-inflation
pressure of the vessel (after totally bleeding
the air from the installation).
Leaks can be detected through the appearance
of condensate runoff traces on the outside of the
tubes.
Check:
• the inside of the outlet with an electric torch,
• the entrance of the outlet through the combus-
tion test point (fig. 63, item no. 34),
• the end of the outlet through the horizontal or
vertical terminal.
• Clean the air suction inlet sheath at the burner.
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MAINTENANCE