given under point 1.3.
2.6
HEATER UNIT
In
SOLO 25 BF TSE
models, t he
heater unit comes on with the consen-
sus of the burner, after a delay of a
maximum of 90 seconds required to
bring fuel in the nozzle holder area up
to a temperature of 65°C. Once this
temperature has been reached, the
thermostat, which is located above
the preheater (1 fig. 17/b), will give
consensus for the burner to start.
The heater will remain on for as long
as the burner stays on and go of f
when the burne goes off.
The
DUETTO 25 BF TSE
models has a
lower power heater which remains on
all the time after the main switch is
turned on in the control panel in win-
ter only.
The first time it is turned on at the
beginning of the season, it may be diffi-
cult for the burner to come on, and
the boiler may stop working if the
operating cycle is begun before te cor-
r ect fuel t emper atur e has been
reached.
When it is started again, enough time
will have passed (2 - 3 minutes) for the
fuel to have reached the correct tem-
perature for start-up.
2.7
ELECTRICAL CONNECTION
The boiler is supplied with an electric
cable and the electric power supply to
the boiler must be 230V-50Hz single-
phase through a fused main switch.
The stat cable, whose installation is
compulsory for obtaining a better
adjustment of the room temperature,
must be connected as shown in fig. 9 -
9/a.
NOTE: Device must be connected to
an efficient earthing system.
SIME declines all responsibility for
injury or damage to persons result-
ing from the failure to provide for
proper earthing of the appliance.
Always turn off the power supply
before doing any work on the electri-
cal panel.
78
1
2
5
6
7
RESET
TWICE
ONLY
12
1
2
3
bar
KEY
1
Gas-oil pump
2
Pressure gauche intake
3
Pressure adjustment screw
Fig. 8
Fig. 8/a
