44
7217395.01
- en
INSTRUCTIONS PERTAINING TO THE INSTALLER
21. POSITIONING OF THE IGNITION AND FLAME SENSING ELECTRODE
Figure 10
9912070100
To measure combustion performance and the toxicity of the products of combustion
, a hole must be made in the flue 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.
22. CHECK OF COMBUSTION PARAMETERS
This is a high static head pump fit 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.
23. OUTPUT / PUMP HEAD PERFORMANCES
1411_1301.eps
Graph 1
0
0,5
1
1,5
2
2,5
3
3,5
4
4,5
5
5,5
6
0
200
400
600
800
1000
1200
1400
HEAD
₂
O]
FLOW [l/h]
[m
H
