14
of gases dissolved in the water, to values of less than 0.6
bar, the burner will go out automatically, and the warning
light (7, Fig. 18) will start flashing to recall the User’s atten-
tion. The charge cock must be opened to bring the pres-
sure back up to 1-1.2 bar, as indicated on the hydrometer.
Once the pressure is restored, the warning lamp will turn
off automatically and the boiler will start up again. After
carrying out this operation, check that the cock is closed.
Should the pressure have risen well above the limit expec-
ted, discharge the over pressure by opening the pressure-
relief valve on any of the radiators.
2.11
“MURELLE 20 TX CE IONO” BOILER SUPPLY
The boilers are shipped in two separate packages:
1) Boiler and 90° elbow, and 2) Smoke discharge pipe ø
60, length 600, with rubber ring for external closing and
terminal with anti-blowback (wind-protection) device.
The following optionals are also available:
– discharge pipe extension ø 60, length 1000 (Code
8077302);
– 90° elbow ø 60 (Code 8077403);
– extension ø 60, length 125, with fume intake (Code
8077305).
By turning the 90° elbow, it is possible to orient the boiler
smoke outlet in any direction (Fig. 17)
2.11.1 Installation of “MURELLE 20 TX CE IONO” boiler
To install the boiler, proceed as follows (Fig. 17/a):
– once you have chosen the position for the dischar-
g e p i p e ( 1 , F i g . 1 7 ) , m a k e a h o l e ø 8 0 i n t h e
masonry;
– adapt the length of the outlet pipe to the actual thick-
ness of the wall. With the extensions supplied on
request, it is possible to reach a maximum useful
length between the appliance and the external wall
surface of 3 m;
– mount the rubber ring and the terminal with wind-pro-
tection device on the pipe.
KEY
1 Outlet pipe
2 Extension
Ø
60
L.
1.000
3 90° elbow
Ø
60
4 Extension ø 60 L. 125 with smoke intake
OPEN
Fig. 16
Fig. 17
Fig. 17/a
