6
EN
1
WORKING WITH THE BOILERS
RONDÒ/ESTELLE 4-5-6-7 E
r
P BE
1.1
Control panel
The control panel enables all operators to make the necessary
adjustments for managing the
Sime RONDÒ/ESTELLE 4-5-6-7
ErP BE
boiler and the systems connected to it.
1
5
6
2
3
4
Fig. 1
1
Orange signalling LED
; system low pressure
2
Thermometer
3
Green signalling LED
; power supply
4
Heating thermostat (min 45°C - max 85°C)
5
Safety thermostat reset
6
Main switch
1.2
Preliminary checks
The initial start-up of the
RONDÒ/ESTELLE 4-5-6-7 ErP BE
boiler
must be carried out by professionally qualified personnel, after
which the appliance can function automatically. It may be neces-
sary for the user to restart the appliance autonomously, without
contacting the technician; for example, after a holiday. In this
case, the following checks and operations must be carried out:
– check that the fuel and water circuit shut-off valves are open
Fig. 2
a
WARNING
Sime
RONDÒ/ESTELLE 4-5-6-7 ErP BE
boilers are NOT
equipped with a system filling device. The system
must be fitted with a pressure gauge (A), to check that
the (cold) water pressure is between 1 and 1.2 bar
(98–117.6 kPa) and a loading/filling valve (B).
– check on the pressure gauge (A) that the pressure of the heat-
ing system, when cold, is
1–1.2 bar
. If not, open the filling valve
(B) and refill the heating system until the pressure gauge (A)
shows a reading of
1–1.2 bar
– close the filling valve (B).
A
B
0
4
1
3
2
bar
Fig. 3
1.3
Ignition
After completing the preliminary checks, to start up the boiler:
– adjust the room thermostat to the desired temperature (~
20°C)
– set the main system switch to "ON"
ON
Fig. 4
– adjust the heating thermostat (4) to roughly 3/4 of the adjust-
ment range (corresponding to roughly 75°C)
– press the main switch (6) on the control panel and verify that
the green LED switches on (3)
4
6
3
1
0
Fig. 5
The burner will pre-heat the fuel (for burners equipped with fuel
pre-heaters) and perform the pre-ventilation cycle; it will then
ignite the flame and operate at its adjusted power until the tem-
perature set on the room thermostat is reached.
The thermometer will show the temperature value of the water
in the appliance, measured at that time.