Technical data

SERVICING
AND
MAINTENAN
CE
INSTRUCTIONS
_
CONDENSING WALL-HUNG BOILER – TG05A052.A0205
30
D
B
10
20
30
40
A
MANOMETRO
C
Parameter 11 setting: MAXIMUM GAS PRESSURE SETTING - MAXIMUM HEATING OUTPUT SETTING
To check or modify the existing pressure value:
a. Insert a manometer into the gas valve pressure point B (fig.1);
b. Put ON / OFF button
1
in OFF position ( );
c. Push pad
6
and
4
simultaneously and keep them pressed;
d. Put ON / OFF button
1
in ON position ( ) and wait until the
display shows - ;
e. Release pad 6 and 4 ;
f. Keeping pad
5
pressed, press pad
6
and select parameter no. ;
g. Release service pad
5
, press and release service pad
5
;
h. The display will show the parameter value to be set or modified;
i. Press pad
6
to reach value on display;
j. Once the parameter value “99” has been reached, press and release service pad
5
to confirm the setting; the display will show
value ;
k. Position ON/OFF button 1 in OFF position ( ) and back to ON position ( );
l. Open the hot water tap at the maximum flow and temperature to switch the boiler ON;
m. The manometer inserted in the pressure point B (fig. 1) will show the maximum gas pressure
n. If that value is different than the one stated in the data plate (see Gas Pressure adjustment table) modify it as follows:
o. Remove the aluminium cap A (fig.1) and, with a screwdriver, turn the plastic screw;
p. Turn clockwise to increase gas pressure and counter clockwise to decrease gas pressure;
q. Once the maximum gas pressure has been adjusted screw aluminium cap A back to position onto the gas valve;
r. Switch the boiler OFF by putting ON/OFF button 1 in OFF position ( );
s. Remove the silicon pipe from the pressure point B (fig.1), close tightly the pressure point screw and make sure there are no gas leaks.
t. Put ON/OFF switch
1
in ON position;
9
1
P
0
1
Gas valve VK 4105G
Fig. 1