Beretta Power Plus Box 150, Руководство по установке, Страница: 50 / 60

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CO2 ADJUSTMENT AT MAXIMUM POWER
- Press the
“Set/esc”
and buttons at the same time
for 5 seconds
- use and to select the maximum fan speed
- generate the heat demand using the room thermo-
stat. The modular system will operate at maximum
power, indicating “H” on the display followed by the
delivery temperature (flue cleaning function)
- unscrew the cap (1) and insert the combustion
analyser sensor
- adjust the CO2 using a screwdriver to turn the ad-
justing screw (2) located on the fan unit (
turning it
clockwise the CO2 value decreases ), in order to obtain
a value of 9.0% for G20 and 10.4% for G30-G31.
CO2 ADJUSTMENT AT MINIMUM POWER
- Press the “Set/esc” and buttons at the same time
for 5 seconds
- use and to select the minimum fan speed The
modular system will operate at minimum power, in-
dicating “L” on the display followed by the delivery
temperature
- adjust the CO2 using a screwdriver to turn the adjust-
ing screw (3) located on the fan unit (
turning it anti-
clockwise the CO2 value decreases
), in order to obtain
a value of 9.0% for G20 and 10.4% for G30-G31.
1 2 3
CHECKING THE CALIBRATION
Press the
“Set/esc”
and buttons at the same time for 5
seconds and check the max CO2 value (9.0% for G20 and
10.4% for G30-G31).
The press the
“Set/esc”
and buttons for 5s and check
the minimum CO2 value (9.0% for G20 and 10.4% for
G30-G31).
When the checks are complete:
- stop the flue cleaning function by pressing the
“OK”
button
- stop the heat demand
- remove the analyser sensor and carefully retighten
the cap (1).
3 12 Temporary shutdown
In the case of temporary absences, weekends, short trips,
etc., proceed as follows:
- set the room thermostats to approx. 10°C
- set parameter 2 to “10” or adjust the boiler thermostat
to 10°C.
With the electric power supply remaining active, as sig-
nalled by the flashing green LED and the supply of the gas,
the modular system is protected.
The electronic control unit has active antifreeze protection
also in stand-by mode.
There are two levels of antifreeze protection:
the first activates the pump
- if the manifold temperature ≤ 5°C, or, with CH_type=1
and the outdoor sensor connected
- if the outdoor temp. ≤ 3°C (Par. 35=Frost_protection)
the high temperature circuit pump and system pump
(third pump) are activated.
the second that activates the pump and burner
- if after 10’ the manifold temperature ≤ 5°C, a burner
is ignited at maximum until the manifold temperature
≥ 20°C
- if after 10’ the manifold temperature ≥ 5°C, but with
CH_Type = 1 and outdoor sensor connected, the out-
door temperature ≤ 3°C, the pump continues to oper-
ate until outdoor temperature is ≥ 3°C.
3 13 Preparing for extended periods
of disuse
The following operations shall be necessary if the
Power
Plus Box
modular system is not used for a long period of
time:
- loosen the screw (1) and turn the control panel (2)
- position the main switch of the modular system (3)
and the main system switch to "off" and check that the
green indicator light turns off (4)
1 2
3
4
- Close the fuel shut off cock and the central heating
and DHW circuit shut off cocks.
b
In this case, the antifreeze system is deactivated.
Empty the heating and DHW circuit if there is a freez-
ing hazard.