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The kit is preassembled by the manufacturer's task
is to heat the domestic water from the water line
of the dwelling. In the moment in which there
is request for opening a hot water tap, the flow
switch commands the diverter valve to convey the
hot water contained inside of the boiler towards
the plate heat exchanger.
In the case in which the heater is turned off and
there is demand for sanitary water, the heater
after 30 seconds from the request, it automatically
starts the ignition process to heat the water inside
the boiler and then to heat the sanitary water.
Directions for use
If the installation of the boiler provides interaction
with another existing system complete with a
heater (gas boiler, gas boiler, oil boiler, etc..)
consult qualified personnel who can then answer
the compliance of the system, as envisaged by the
law in force.
Flushing the system
In accordance with the UNI-CTI 8065 is strongly
recommended to wash the entire system before
connecting it in order to get rid of residues and
deposits.
After flushing the system to protect it against
corrosion and deposits, it is recommended the use
of inhibitors.
Upstream from the Boiler, always install shutters
so as to disconnect it from the plumbing system
should it be necessary to move it, or when it
requires routine and/or special maintenance.
Connect the boiler using hoses so that the boiler
is not too strictly connected to the system, and to
allow slight movement.
These are as helpful as the supply and return piping
system if the heating system is on a higher floor
than the boiler.
The exhaust pipe pressure is connected temporarily
to a carafe or a funnel to avoid, in case of
overpressure, that the water gush bathrooms and
the structure and the floor.
Filling the thermo Boiler
Once all the water connections, proceed to check
pressure seal by filling the boiler. During this
operation, any air in the system is released from
the automatic vent valve.
12
The filling pressure of the system when COLD must
be 1 bar
During operation, if the system pressure
.
drops (due to evaporation of dissolved gases in the
water) to values lower than the minimum indicated
above, the user must use the filling tap to bring
the pressure back up to its normal pressure.
For proper operation of the boiler when HOT, the
pressure in the boiler must be 1,5 bar.
TAP
LOCKED
TAP ONE ROUND LOOSENED
Replenishment of the System
The replenishment has to be slowly carried out in
order to let the air bubbles flow out through the
right oulets that are placed on the heating system.
In heating systems with a closed circuit the loading
cold pressure of the system and the inflation
pressure of the expanding vase must correspond.
• in heating systems with open vase, the direct
contact between the circulating liquid and the air
is allowed. During the heating-season the user
PURGE
SAFETY VALVE
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