GB
Plumbing system connection
There are 2 different types of systems:
- Closed vessel system
- Open vessel system.
Closed vessel system
This product has been designed and built to work with
closed vessel systems. In general, the closed vessel
system has the following expansion as the expansion
vessel pre-loaded. In addition to the expansion device,
the closed vessel system must be provided in accordance
with current Italian UNI 10412-2 (2009) by:
•
safety valve
•
thermostat control of the circulator
•
device alarm sounds
•
temperature Indicator
•
pressure indicator
•
audio alarm
•
automatic adjustment
•
safety thermostat with manual reset
•
circulation system
Open vessel system
The open vessel system is a more secure system that
does not require the addition of further securities. The
fireplace stoves, wood boilers and stoves necessarily
require use of an open vessel system
.
A plant run open
vessel, connected to a thermoproduct, may provide for
circulator mounted on the return, in this way the system
would work at lower temperatures to the advantage of a
longer life
.
While working under optimal conditions, the
pump mounted on the back can push the water through
the tube pan on safety and can make it back in the system
through the inlet pipe causing a phenomenon of oxygen
that is highly damaging to life of the boiler.
To prevent this phenomenon, it is possible to apply the
following measures
:
•
lower the speed of the pump so as to reduce the
prevalence
•
hold, if possible, the tray a little lower and raise the
maximum allowed the safety tube
•
perform the separation between the safety pipe and the
discharge pipe, not at an angle of 90 ° but with a curved
connection.
The connection of the
boiler
to the
plumbing system must be made ONLY by
specialized personnel who are capable of
carrying out installation properly, in compliance
with current standars in the country of installation.
The manufacturer will not be held responsible for
damage to persons or things in the event of failed
operation if the aforementioned warning is not
complied with.
A1
Set funnel connected to sewers
*
Main flow (Hot water)
Return flow
(cold water)
Safety
valve pressure
3/4"
ZVB 20-32
*
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 t ap t o b ring t he pressure b ack u p t o its
normal pressure.
For proper operation of the
boiler
when hot
, the
pressure in the boiler must be
1,5 bar
.
C
D
E
F
I
Flue gas
exhaust
ZVB 16
Inlet
Outlet
Ø50
Fresh
air intake
Ø80
