Electronic Board Calibration; Positioning Of The Ignition And Flame Sensing Electrode; Check Of Combustion Parameters; Output / Pump Head Performances - Chappee initia MASTER 2.24 FF Installers And Users Instructions

Electronic board calibration
Fr
When the jumper or the switch is in the (fig. 13a) position:
GPL operation of system with NATURAL gas
CN
T-off 3-minute heating stand-by time
GB
Gr
Figure 13a
SP
When the jumper or the switch is in the (fig. 13b) position:
GPL operation of system with LPG
T-off 10-seconds heating stand-by time
PT
Figure 13b
NB Make sure that electrical power supply has been disconnected before making
settings.
Positioning of the ignition and flame
sensing electrode
Figure 14
Check of combustion parameters
The boiler has two connection points specifically designed to allow technicians to
measure the combustion efficiency after installation and ensure that the combustion
products do not constitute a health risk, as required by Italian Presidential Decree n.
th
412 of 26 August 1993.
One connection point is connected to the flue gas discharge circuit, and allows monitoring
of the quality of the combustion products and the combustion efficiency.
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 flue 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 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 (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 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.
Graph 1
52
OUTPUT l/h