Sime GO 18 BF G20, User, Installation And Servicing Instructions

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74
EN
Gas supply pressure
Type of gas G20 G30 G31
Pressure
(mbar)
20 28-30 37
Installation with SPLIT PIPE SYSTEM smoke outlet
Model
Heat
Output
Pressure at nozzles (mbar)
G20 G30 G31
GO 18 BF
Max 13,2 - 13,6 27,8 - 28,2 35,8 - 36,2
min 0,7 - 1,0 2,2 - 2,5 2,9 - 3,2
GO 25 BF
Max 12,6 - 13,0 27,8 - 28,2 35,8 - 36,2
min 1,0 - 1,3 2,8 - 3,1 3,4 - 3,7
GO 30.BF
Max 13,0 - 13,4 27,8 - 28,2 35,8 - 36,2
min 1,8 - 2,1 3,8 - 4,1 4,6 - 4,9
Installation with CONCENTRIC smoke outlet
Model
Heat
Output
Pressure at nozzles (mbar)
G20 G30 G31
GO 18 BF
Max 13,4 - 13,8 27,8 - 28,2 35,8 - 36,2
min 0,9 - 1,2 2,4 - 2,7 3,1 - 3,4
GO 25 BF
Max 12,8 - 13,2 27,8 - 28,2 35,8 - 36,2
min 1,2 - 1,5 3,0 - 3,3 3,6 - 3,9
GO 30.BF
Max 13,2 - 13,6 27,8 - 28,2 35,8 - 36,2
min 2,0 - 2,3 4,0 - 4,3 4,8 - 5,1
– Connect the flue gas analyser to the take-off point
– open one or more of the hot water cocks and start up the
boiler
– determine the combustion data and, if necessary, take a
reading of the combustion efficiency as provided for by the
legislation in force
After taking the readings, close the cocks which were opened
previously and disconnect the flue gas analyser.
7.7 Gas conversion
GO BF models can be converted from operation with G20
(methane) to operation with G30/G31 (LPG) by installing the
"Nozzle kit for G30/G31 (LPG) - code 5144733 (for
GO 18 BF
), code
5144716 (for GO 25 BF and GO 30.BF ), to be ordered separately
from the boiler.
After replacing the nozzles
it is necessary to set parameter tS 0.2
= 1
.
To adjust the boiler to LPG, during FULL calibration, set PO1 to
the value of 150.
m
CAUTION
The maintenance interventions described must ONLY
be carried out the professionally qualified personnel.
a
WARNING
Before carrying out any interventions described:
– set the main system switch to "OFF"
– close the gas valve
– make sure that no hot parts inside the appliance are
touched.
OFF
Fig. 59
7.7.1 Preliminary operations
To carry out the conversion:
1
2
Fig. 60
– remove the screws (1), pull the front panel (2) forwards and
release it from the top by lifting it
– remove the screws (3) securing the control panel (4)
– move the panel (4) upwards (a) but keeping it in the side
guides (5) to the end of travel
– bring it forwards and down (b) until it is horizontal
3
a
b
5
4
Fig. 61
– unscrew the four screws (3) and remove the front door (4)
of the combustion chamber, working carefully so as not to
damage the insulation
4
3
Fig. 62