BAXI - 925.200.1
21
GB
HU
CZ
INSTRUCTIONS PERTAINING TO THE INSTALLER
925.492.2
22. POSITIONING OF THE IGNITION AND FLAME SENSING ELECTRODE
23. CHECK OF COMBUSTION PARAMETERS
The boiler has two connection points specifi cally designed to allow technicians to measure the combustion effi ciency after installation and
ensure that the combustion products do not constitute a health risk.
One connection point is connected to the fl ue gas discharge circuit, and allows monitoring of the quality of the combustion products and
the combustion effi ciency.
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 fl ue gas circuit:
• temperature of the combustion products;
• oxygen (O
2
) or carbon dioxide (CO
2
) concentration;
• carbon monoxide (CO) concentration.
The combustion air temperature must be measured at the connection point on the air intake circuit, inserting the measur ement probe to
a depth of about 3 cm.
For natural draught boiler models, a hole must be made in the fl 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 (O
2
) or carbon dioxide (CO
2
) 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.
24. OUTPUT / PUMP HEAD PERFORMANCES
This is a high static head pump fi 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.
Figure 14
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