10
EN
5
DESCRIPTION OF THE APPLIANCE
5.1
Characteristics
Sime RONDÒ/ESTELLE 4-5-6-7 ErP BE
cast iron boilers are configured for operating with diesel blown-air Low NOx burners. They are
specially designed for users who privilege high performances, silent operation and compact dimensions.
RONDÒ/ESTELLE 4-5-6-7 ErP BE
boilers are the version for space heating only. They can be
TYPE B23P
(open) devices, when the burner
draws combustion air from the environment in which they are installed, therefore the room MUST include adequate vents sized ac-
cording to the laws in force in the country where the appliance is used.
RONDÒ
/
ESTELLE 4 ErP BE
and
RONDÒ
/
ESTELLE 5 ErP BE
models can be converted into
TYPE C23P
(sealed) devices, using the available
ACCESSORIES KITS (see the paragraph
6.1.1 Optional accessories
) which allow the appliance to draw combustion air directly from
outside the room where it is installed.
ESTELLE ErP BE
boilers are equipped with a reversible door that opens towards the right. By inverting the pin, the door opening direc-
tion can be switched to the left side.
The door pin is not present on
RONDÒ ErP BE
boilers. They are supplied in 3 separate packages: boiler body, jacket, control panel and
document kit.
The broad heat exchange surface of the cast iron body allows to obtain high performances that ensure considerable savings in terms
of running costs.
5.2
Operation
Prior to starting up the boiler, we suggest setting the heating
thermostat (4) to roughly 3/4 of the adjustment range (roughly
75°C) and then activating the general and main switches (6) to
power the system electrically. The green signalling LED (3) will
light up to signal that the system is powered.
When a heat request arrives, with the thermostat in request
mode, the fuel will start heating (for burners fitted with a fuel
pre-heater) for a few minutes with the burner stationary. The
following operations occur in sequence: powering of the burner
and of the ignition transformer; ignition of the flame and start-
ing up of the system pump.
The flame will remain on until the temperature set through the
heating thermostat (4) of the control panel has been reached,
while the system pump continues to operate in order to use the
heat generated (available). The burner will then switch on and
off in an alternating manner until the temperature requested by
the room thermostat is reached.
The temperature of the water contained in the cast iron body will
appear on the thermometer (2).
m
CAUTION
The diagram of the operating sequences/phases is
shown in the documentation supplied with the burner
installed.
6
2
3
4
Fig. 13
