Edition 01 of 08/2017
5.9
SERVICE MANUAL
Fig. 131
Fig. 132
Fig. 133
Fig. 130
5.6 SAFETY VALVE
The steam safety valve is made to open at the
pressure of 1.8 bar.
If necessary, it can be replaced using a key to
lock the tube that carries the steam and unscrew
the entire assembly.
WHEN TO REPLACE
For safety reasons each time the valve comes
into operation it should be replaced to ensure
perfect operation.
So if the heater floods or there is excess steam it
is necessary to secure the machine by replacing
the entire valve.
We recommend to replace the whole assembly
once every 2 years.
HOW TO REPLACE
After removing the assembly comprising the
safety valve and anti-suction valve, break the
plastic cover and using a vice, unscrew the valve
from the T-fitting.
We recommend an annual inspection of the fit-
tings that inject water in the exchangers and to
remove any residues of calcium that can be cre-
ated.
5.7 HEAT EXCHANGERS (T3
VERSION ONLY)
The heat exchangers have the function that pre-
heats the water before being injected into the
boilers of each group, to be accurately adjusted
to the desired temperature.
The cold water enters the heater through the
upper entrance and exits heated from the lower
end.
The critical points are the areas where there is a
greater difference in temperature, therefore, it is
appropriate to evaluate the correct cleaning of
the water inlet fittings.
WARNING
OPERATION TO PERFORM WITH PRESSURE
IN BOILER IS ZERO.
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