52
GAS
LABEL
THIS GAS BOILER IS CONVERTED FOR USE WITH
LP GAS
SUPPLY PRESSURE 11 in w.c./27.4 mbar
CETTE CHAUDIERE A GAZ EST REGLEE POUR
FONCTIONNER AU
LP GAZ
PRESSION
D’ALIMENTATION DU GAZ 11 in w.c./27.4 mbar
11 .15
Combustion analysis
To carry out the combustion analysis, proceed as follows:
- power the boiler electrically by turning the main power switch
to “ON”
- set the status of the boiler to OFF
.
− access the parameter menu as described in “11.11 Access to
the PARAMETER menu” page 47
− select the parameter “-ACO-” pressing the “MODE/OK” button.
-ACO-
- the display shows the value of the selected parameter. To modify
it rotate on one of the two knobs.
0
− confirm the parameter value by pressing the “MODE/OK” button.
1
The programming complete, press the “MENU/RESET” button to
exit from the parameter menu and come back to the main page.
In this case two strings will be displayed alternatively, every 2
seconds: one related to the parameter description and the other
referring to the speed value of the fan speeds (rpm).
To adjust the value choose one of the two knobs and start to rotate.
Wait for two seconds from the last rotation, then the value will be
confirmed and the display come back to the main page.
-ACO-
2100
Wait for the burner to ignite.
The boiler will operate at maximum heating output and it will be
possible to regulate the combustion.
-
I
nsert the analyzer probe in the specific positions on the air
distribution box, after removing the two taps (A)
.
A
- Perform the combustion check
verifying that the
CO2
values
correspond to those indicated in the technical data table
.
- Once check
s are
completed, remove the analyzer probe and
close the combustion analysis sockets with appropriate caps
and screw.
9
WARNING: If the value displayed is different from the one
shown in the technical data table DO NOT MAKE ANY
ADJUSTMENTS ON THE GAS VALVE, please contact the
Technical Assistance Centre.
9
WARNING:
The gas valve DOES NOT require adjustments
and the possible tampering can cause a malfunction or failure
of the boiler which may result in substantial property damage,
severe personal injury or death.
NOTICE:
When the sweeper function is in progress all the heat
requests are inhibited. The 2 strings, alternatively every second,
will be displayed: “ACO” and the string referring to the speed value
of the fan speeds.
When the checks are completed:
- set the boiler to “DHW” or “CH&DHW” m
ode
-
regulate the
heat request temperature values according to the
customer’s needs
.
IMPORTANT
The sweep
er
function is active for a time limit of 15 minutes; the
burner shuts down if an outlet temperature of 203°F (95°C)
is
reached. It will ignite again when the temperature falls below 167°F
(75°C)
.
In case of a low temperature system we recommend carrying out
the efficiency test by setting the boiler to DHW mode, opening the
hot water tap to full capacity and setting the temperatur
e of the
domestic hot water to the maximum.
11 .16
Lights and faults/Reset procedure
If any faults should occur a brief alphanumeric description of the
fault will appear on the display.
See “Boiler fault list” below for a description of the errors.
