GB
52
CN
GR
FR
SP
PT
Positioning of the ignition and flame
sensing electrode
Figure 14
9912070100
Electronic board calibration
When the jumper or the switch is in the (g. 13a) position:
GPL operation of system with NATURAL gas
T-off 3-minute heating stand-by time
When the jumper or the switch is in the (g. 13b) position:
GPL
operation of system with LPG
T-off 10-seconds heating stand-by time
020521_0400020521_0300
Figure 13b
Figure 13a
NB Make sure that electrical power supply has been disconnected before making
settings.
Graph 1
0303_2403
Check of combustion parameters
The boiler has two connection points specically designed to allow technicians to
measure the combustion efciency after installation and ensure that the combustion
products do not constitute a health risk, as required by Italian Presidential Decree n.
412 of 26
th
August 1993.
One connection point is connected to the ue gas discharge circuit, and allows monitoring
of the quality of the combustion products and the combustion efciency.
The other is connected to the combustion air intake circuit, allowing checking of any
recycling of the combustion products in case of coaxial pipelines.
The following parameters can be measured at the connection point on the ue gas
circuit:
• temperature of the combustion products;
• oxygen (O2) or carbon dioxide (CO2) concentration;
• carbon monoxide(CO) concentration.
The combustion air temperature must be measured at the connection point on the air
intake circuit, inserting the measurement probe to a depth of about 3 cm.
For natural draught boiler models, a hole must be made in the ue gas discharge pipe at
a distance from the boiler equal to twice the inside diameter of the pipe itself.
The following parameters can be measured through this hole:
• temperature of the combustion products;
• oxygen (O2) or carbon dioxide (CO2) concentration;
• carbon monoxide (CO) concentration.
The combustion air temperature must be measured close to the point where the air
enters the boiler.
The hole, which must be made by the person in charge of operating the system when it
is commissioned, must be sealed in a way which ensures that the combustion product
discharge pipe is airtight during normal operation.
Output / pump head performances
This is a high static head pump t for installation on any type of single or double-pipe
heating systems. The air vent valve incorporated in the pump allows quick venting of
the heating system.
OUTPUT l/h
PUMP HEAD mH
2
O