Service Functions - BaltGaz NEVALUX 7224 User Manual

Fuse 21
III
(см. Annex , page 53)
Pressure sensor 25 (see p.
Thermo relay9
Bypass valve 12
Safety valve 17
Air duct valve 20
Gas supply regulator 8
13.1
(see p. , page 24)
Ionization plug 11
Air pressure switch 1
13.1
(see p. , page 24)

Service functions

13.3.
13.3.1 Parameters programming function
Parameters programming function enables to modify main parameters of boiler's starting up and operating. This
function works only in the stand-by mode and allows modifying the following parameters:
"P0" – ignition power 0 ÷ 99 (100 steps);
"P1" – minimal heating power 0 ÷ 39 (40 steps);
"P2" – minimal heating power40 ÷ 99 (60 steps);
"P3" – minimal time from turning off until restarting working 0 ÷ 14 (min).
Factory settings of the boiler «BaltGaz NEVALUX−7224»: "P0"=40 for boilers working on NG, "P0"=60 for
boilers working on LPG, "P1"=0, "P2"=99, "P3"=3 min.
.
To use a parameters programming function it is necessary:
1) Switch the boiler off consequently pushing a button К5 (see scheme. 2, page 7), until a symbol
2) Disconnect boiler from the power line;
3) Connect boiler again to the power line. Within 5 seconds there is a chance of activating of the programming
function;
4) Push and simultaneously press buttons of temperature reducing DHW and CH (К2 and К4) for activating
parameters programming function;
5) Release the buttons when a code "P0" and symbol
6) Choose a parameter which you would like to change pressing the buttons К3 or К4;
7) Push the button К5 in order to display a parameter value. Symbol
8) To change the value of the chosen parameter by pressing a button К1 (increasing) or К2 (value reducing).
Keep the button К1 or К2 pressed for increasing speed of changing parameter;
9) Press button К5 in order to keep a set parameter value and come back to choosing parameters;
10) To repeat cycle starting from p.6 in order to modify all the parameters which you would like to change;
11) Press button К6 (RESET) to escape from programming mode.
Do not change a parameter Р3 without any emergency.
Component
13.1
, page 24)
For combustion products
For control
Protect electronic board and electric circuits against
overloading in the electric system and short circuit
protection
For water
Control minimal water pressure and air absence in the
heating system
Protect heat exchanger against overheating
Protect heat exchanger against overheating while
increasing resistance in the heating system
Water relief out of the heating system when pressure is
higher than 3 bars
Automatic air removal out of the heating system
For gas
Ignition at low pressure in order to avoid "clap".
Blocking gas supply if emergent case happens (heat
carrier overheating, absence of draught etc.)
Flame control on the burner. If flame lacks, it stops gas
supply to the burner
Control fan's operation.
When draught is present or fan is out of control, it stops
boiler's working
will be mapped on the display;
User's manual
Function
starts blinking;
is mapped;