Checks During And After Initial Start-Up - Beretta POWER MAX Installation And Operation Manual

3.3 Checks during and after initial start-up

When the appliance it started, it must be checked by stopping and
then restarting the thermal module in the following way:
- Set the operating mode of the thermal module in heating to 0
(Par. 2001) e and close the RT input to generate a heat request
- If required, increase the set-point value (CH → Heating Set-
point)
- Make sure that all the pumps in the system are free and rotate
in the right direction
- Check the full stop of the thermal module and the heat demand
by opening the "RT" contact (OFF).
- Check that the thermal module has come to a complete stop
by setting the main switch of the equipment and the main
switch of the system to "off".
46
If all conditions are met, power the thermal module by setting the sys-
tem's and the appliance's master switches to "On" and test combus-
tion products (see Paragraph "Adjustments").
SUPPLY GAS PRESSURE CHECK
- Turn the main system switch "off"
- Remove the locking screws and the panel's front side
- Loosen by about two turns the pressure inlet screw (1) up-
stream of the gas valve and connect the pressure gauge
°C
- Power the thermal module by setting the system's and the ap-
pliance's master switches to "On".
Set Par. 0200 on "Hi" by using "PROG +" and "PROG -" and press
"MENU/RESET" to confirm.
0 2 0 0
DESCRIPTION
Wobbe index
Nominal supply pressure
After the checks:
- select "OFF" using "PROG +" and "PROG -" and press "MENU/
RESET" to confirm.
- Disconnect the pressure gauge and tighten again the pres-
sure test point screw (1) upstream from the gas valve.
0 2 0 0
- Fulfil the operations, place back the front panel and lock the
locking screws.
G20 G30 G31
45,7 80,6 70,7 MJ/m
3
20 28-30 37 mbar