La San Marco LEVA-2 Original Instructions Manual - Boiler (Optional)
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English
6.3 Drawing hot water
Hot water is drawn by the appropriate spout and can be used to prepare infusions, tea, camomile tea, to heat
cups, to add water to an espresso and to obtain American-style coffee, and so on. Use the hot water lever
7
to draw hot water (lower, raise or move sideways the lever).
6.4 Cup heater (optional)
The cup heater is used to increase heating of the upper cup support surface. Use the tap 4 to activate or de-
activate the cup heater.
7. instructions for authorized installer gas fired
boiler (optional)
7.1 Instructions for authorized installer
• Readtheinstructionsbeforeinstallingandusingtheappliance
• hisappliancecanonlybeinstalledandusedinpermanentlyventilatedplacesaccordingto
UNI-CIG7129andUNI-CIG7131Standards.
7.2 Connection to gas supply
Position the appliance as described in the Use and Maintenance Manual, remove the control panel as de-
scribed in the same handbook, and connect the appliance to the gas supply mains, or LPG bottle (G30/G31),
using rigid metal pipes or flexible metal tubes according to UNI-CIG 9891 Standards. Check that the appliance
is prearranged for the type of gas actually being used; the corresponding setting is shown on the settings tag.
If the appliance is prearranged for a different type of gas, change the arrangement as described in the para-
graph “Changing the calibration”.
The gas infeed, consisting of an on-off valve (51), includes a G 1/8” threaded connection (thread is not ga-
stight) according to ISO 228-1 Standard.
If using rigid metal pipes for connection to the gas supply, place an appropriate fitting between the valve and
the rigid metal pipe, which should be provided with a G 1/8” female thread (thread is not gas-tight) according
to ISO 228-1 Standard.
If using flexible metal tubes for connection to the gas supply, interpose an appropriate G 1/2” female nipple
(gas-tight thread) according to ISO 7-1 Standard and a G 1/2” male nipple (thread is not gas-tight) according
to ISO 228-1 Standard; interpose a suitable gas-tight gasket.
When the connection is completed, open the gas flow upstream of the appliance and, using a soapy solution
(never a free flame), check the perfect tightness of the connection.
7.3 Venting the combustion fumes
In relation to the venting of the combustion fumes, the appliance is of Type A1: i.e., it draws in the air required
for combustion from the room and discharges the fumes in the same environment.
Place particular attention to the volume of the room where the appliance is to be installed: this should be at
least 12 m
3
.
If the room has a smaller volume, it will be necessary to install the appliance directly under a suction hood,
and also to provide a combustion air intake with a free-flow cross section of al least 100 cm
2
.
7.4 Ignition
Press and turn the gas valve knob (51) counter clockwise to the position of the flame symbol, as shown in Fig. B.
While holding the knob pressed, push a few times the burner ignition button, marked with the star symbol (53) to
ignite the burner (piezoelectric ignition). When the flame is lit, check through the relative hole (54), while keeping
the gas knob pressed for 5-10 seconds. After this period, if the flame does not remain lit, repeat the ignition ope-
ration again.