Unical PELLEXIA 80, Instructions For Installation, Use And Maintenance Manual

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18
3.6.1 - CONNECTION TO THE
SAFETY HEAT EXCHANGER
Solid fuel fired boilers must be installed
with the safety devices foreseen by the
relevant laws in force.
For this purpose PELLEXIA boilers are
equipped with a safety exchanger.
A thermal discharge valve must be installed on the safety heat
exchanger by the installation technician , with a control bulb set
up inside the sheath located on the rear side of the PELLEXIA
boiler.
Attention!
The input or output can be inverted as long as
the valve is installed on the cold water intake.
Provide a drain pipe with a funnel and a siphon
leading to an appropriate drainage at the heat exchanger outlet.
This drainage must be controlled on sight.
Attention!
If this precaution is not taken, triggering of the
thermal discharge valve can cause damage
to persons, animals and objects for which
the manufacturer cannot be held responsible.
SCARICO
2
ALIMENTAZIONE
1
3.6 - HYDRAULIC CONNECTIONS
ATTENTION!
Before connecting the boiler to the heating
system, thoroughly clean the piping with an
appropriate product compliant with UNI-CTI
8065, in order to eliminate metallic residue
from processing and welding, oil and grease
which could be present and which, reaching
the boiler, could alter its functioning.
Attention!
The fittings of the boiler must not take the
weight of the connecting pipes of the sys-
tem; suitable supporting devices should be
installed to do this.
The dimensions of the supply and return pipes for each boiler
model are given in the DIMENSIONS table.
Check that the system is fitted with a sufficient number of vent
valves.
POWER SUPPLY
DRAIN
DRAIN
DRAIN
POWER SUPPLY
POWER SUPPLY
CORRECT
INSTALLATION
INCORRECT
INSTALLATION