Installation; Water Connections - Piazzetta P963 THERMO Instructions For Installation, Use And Maintenance Manual

5.0 INSTALLATION

Pursuant to current regulations on the safety of electrical equipment, you must contact a Piazzetta After-Sales Service Centre or a qualified electrician
for all and any work connected with installation, maintenance or servicing that involves access to electrical parts.

5.1 wATER CONNECTIONS

Heating version.
This appliance has been designed to heat not only the immediate
surrounding environment, but also water for a hot-water type heating
system.
When the appliance is operating regularly it produces hot water at a
temperature that is necessarily below boiling point and a heating
system must therefore be designed that is suited to the characteristics
of the appliance.
a
A qualified heating plumber must be called in to:
- check an existing installation;
- design, install and check a new installation.
a
The water heating system must be sized in relation to the
average power of the appliance and the heating requirements
of the building (see "TECHNICAL DATA").
The fittings for connecting the appliance to the plumbing system are to
be found at the rear.
Connections:
- Connect the appliance to the heating plumbing system "R"-"M" using
pipe unions and stop valves to facilitate any future maintenance or
draining of the heating system.
- Connect the temperature/pressure relief valve "S" of the appliance to
a suitable drip funnel without shut-off valves. (Fig. 34)
Should the temperature/pressure relief valve activate, the water must
be free to flow away without causing injury to persons or damage to
property.
a
Installing shut-off valves on the inlet and the outlet enable
maintenance to be carried out without having to drain the
system; it is advisable to install the water connection kit, but
in any case installation must be carried out as shown in the
diagram. (Fig. 35)
a
Drain taps inserted in the lowest points of the system make it
easier to drain the system if necessary.
a
Air valves installed at all the highest points of the system
make it easier to bleed the heating system.
a
Do not install thermostats on all the heaters (radiators) of the
heating system so that at least the minimum output of the
appliance can be dissipated.
20
Fig. 34
1 3-piece pipe union
2 Manometer
3 Ball valve
4 Hose
H07027850 / DT2000931 – 01
3
S
M
3
R
1
1
2
DT2012100-00
DT2012103-01
3
4
3
4
DT2032972-00