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1.1 General warnings
The boiler models that are the subject of this manual are sup-
plied disassembled of the boiler body.
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The cast iron boilersRTT 163-355 are designed for heating
using water and/or supplying hot water systems and have
been designed with technologies and materials suitable for
this purpose. Use the product only for this intended use.
9
The installation of the appliance should be carried out on a
base that is suited to the weight and the dimensions.
9
The base of the boiler should be positioned and oriented in
such a way as to leave sufficient space on the sides of the
appliance to meet safety requirements and permit access to
the boiler for maintenance and repairs.
9
The commissioning and initial ignition of the boiler should
only be carried out by specialised installers.
9
It is forbidden to put or pump water into the boiler or the
hydraulic system when the appliance is running and is hot.
9
Before putting water in the boiler or the system, it is neces-
sary to wait for the water temperature to reach 40° C. When
putting water into the system, always run the circulation
pump to prevent breaking the elements.
9
When the boiler is off for a long period or when carrying out
repairs, maintenance or cleaning, the electrical supply must
be disconnected using the master switch.
9
Especially in summer, when the boiler is off for a long pe-
riod, to avoid problems of incrustation in the circulation
pumps, the boiler must be switched on 1-2 times a month
and the circulation pumps operated for at least 5 minutes.
Limescale in the water can cause problems if the pump is
unused for a long period.
9
Choose a boiler with the right dimensions for the project
in full compliance with applicable regulations. If the wrong
size is chosen, the performance will suffer.
9
The RTT 163-355 boilers are only to be used for heating. For
the production of domestic hot water, it is necessary to use
a storage heater or another heat exchanger. To attain an ap-
propriate performance, pay special attention to the size of
the domestic hot water circuit.
9
The RTT 163-355 boilers are delivered without the burner. To
choose the most suitable burner and to keep the perfor-
mance at a high level, contact technical personnel.
9
If the boiler goes into lockout automatically because of over-
heating, do not put cold water inside to get it going again.
Wait until the boiler cools down, and try to restart it. If this
does not happen, contact the Technical Assistance Service.
9
Periodically check the boiler and the burner. If these period-
ic controls are not carried out, the performance will worsen
and there will be an increase in fuel consumption. The peri-
odic and annual controls of the boiler should be carried out
precisely and at the scheduled time. Natural gas is a clean
fuel and does not dirty the appliance so much. Liquid fuel
burners, on the other hand, get the appliance very dirty and
the boiler controls and maintenance operations are neces-
sary to ensure a high performance and a long life.
9
Repairs and periodic controls of the boilers RTT 163-355
should be carried out by specialised technicians. This man-
ual contains an explanation of the user's responsibilities
and the information required for using the boiler. Beyond
these operations, the boiler should only be commissioned
by the user or by one of our technicians. Do not try to adjust
the boiler or tamper with any components.
9
The mains electrical connections to the boiler room, to the
burner and to the boiler itself, the earthing of the control
panel and the boiler should be carried out by qualified per-
sonnel in compliance with the reference regulations and
standards.
9
The burner should be purchased separately, this manu-
al contains only information regarding the boilers and the
boiler warranty does not extend to the burner. It is neces-
sary to consult the burner's instruction manual and have
the Warranty Certificate issued for the burner by the dealer
where it was purchased.
9
Before starting the burner, make sure that the front door of
the boiler is closed tight and that the burner connections
have been carried out correctly.
9
Do not touch the hot water pipes and the flues gases dis-
charge pipe when the boiler is running.
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