User’s manual
13.3.
Service functions
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
is mapped;
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
will be mapped on the display;
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
starts blinking;
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
Function
For control
Fuse 21
(см. Annex
III
, page 53)
Protect electronic board and electric circuits against
overloading in the electric system and short circuit
protection
For water
Pressure sensor 25 (see p.
13.1
, page 24)
Control minimal water pressure and air absence in the
heating system
Thermo relay9
Protect heat exchanger against overheating
Bypass valve 12
Protect heat exchanger against overheating while
increasing resistance in the heating system
Safety valve 17
Water relief out of the heating system when pressure is
higher than 3 bars
Air duct valve 20
Automatic air removal out of the heating system
For gas
Gas supply regulator 8
(see p.
13.1
, page 24)
Ignition at low pressure in order to avoid “clap”.
Blocking gas supply if emergent case happens (heat
carrier overheating, absence of draught etc.)
Ionization plug 11
Flame control on the burner. If flame lacks, it stops gas
supply to the burner
For combustion products
Air pressure switch 1
(see p.
13.1
, page 24)
Control fan’s operation.
When draught is present or fan is out of control, it stops
boiler’s working
