Beretta Power Plus Box 150, Руководство по установке, Страница: 36 / 60

36
Check that the modular system stops completely when
turning the main system switch to "off".
Electrically power the modular system by turning the main
system switch and the main device switch to "on".
After a few minutes of continuous operation with demand
from the room thermostat, the binders and manufacturing
residuals will have evaporated and the following can be
performed:
- supply gas pressure check
- combustion check.
SUPPLY GAS PRESSURE CHECK
- Turn the main system switch "off"
- open the two front doors in the casing
- unscrew the pressure tapping point screw (3) located
upstream of the gas valve by two turns and connect
a pressure gauge there.
3
- electrically power the system by turning the main sys-
tem switch and the main device switch to "on".
In TEST mode it is possible to generate a high temperature
heating demand at maximum power.
Proceed as follows:
- press the
“Set/esc”
and buttons at the same time
for 5 seconds
- generate the heat demand using the room thermo-
stat. The system will operate at maximum power, in-
dicating “H” on the display followed by the delivery
temperature (flue cleaning function)
- with the burner ignited at maximum power, check that
the gas pressure is the nominal supply pressure indi-
cated in the table
DESCRIPTION G20 G30 G31
Wobbe index 45,7 80,6 70,7 MJ/m
3
Nominal supply pres-
sure
20 28-30 37 mbar
- stop the heat demand
- press “OK” to exit TEST mode
- disconnect the pressure gauge and tighten the pres-
sure tapping point (3) upstream of the gas valve.
COMBUSTION CHECK
electrically power the system by turning the main system
switch and the main device switch to "on".
In TEST mode it is possible to generate a high temperature
heating demand at maximum power.
Proceed as follows:
- press the
“Set/esc”
and buttons at the same time
for 5 seconds