Alpha ARES Pro 150, Инструкции по установке и обслуживанию

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35
Inspections and maintenance
ANNUAL ROUTINE CHECKS
COMPONENT: CHECK:
CONTROL METHOD/
INTERVENTION:
VG
(Gas valve ( 3 )
Does the valve modulate correctly? Th e check is carried out in “Calibration” mode,
requesting 100%, in 50%, the minimum mod-
ulation percentage.
Check that th
e fl ame modulates.
S M (flo w sensor) ( 11 ) Do the sensors maintain their original fea-
tures?
12571 ohm at 20° C / 1762 ohm at 70° C.
Measurement to be carried out with the wires
disconnected (see Res/Temp table) .
E ACC (ignition electrode ( 28 ) Th e sparks generated before being secured is
less than 3 secs?
Disconnect the wire from the ionization elec-
trode and check the time required to make it safe.
TL (Overheating limit thermostat) ( 10 ) (51) Does the TL make the boiler safe in case of
overheating?
Heat the TL until it intervenes at 102°C and
check that it intervenes at 102°.
Condensate drain trap (27) Was the drain trap deposited at the bottom? Clean the drain trap with water.
Heat exchanger body If SL makes the boiler safe in case of an increase
in the level of condensate
If PF makes the boiler safe in case of a clogged
fl ue exhaust
Check/remove any deposits from the com-
bustion chamber using a vacuum cleaner.
Then wash the heat exchanger body with
water and check correct draining from the fl ue
chamber and drain trap / remove any fl ue side
obstructions.
Burner ( 5 ) Make sure the burner’s mesh is clean Remove any deposits using compressed air
blown from the mesh side
( Num ) = see key Par. 2.1
• POSITIONING AND REASSEMBLING THE BURNER
ATTENTION:
After completing maintenance, it is imperative to
assemble the burner correctly.
A - Insert gasket 1
B - Direct burner 2 as shown in the drawing (the arrow engraved on
the door must be in line with the burner’ s fin s).
C - Insert gasket 3