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8 Performance adjustment
8
Performance adjustment
On ÖkoFEN pellet boilers the effective heat exchanger area can be changed within a
assembly group. This involves opening or closing the heat exchanger tubes. The
power rating of the pellet boiler is adjusted as a result. ÖkoFEN supplies the pellet
boilers in one type group with the power rating shown below. If the condition as ship-
ped is different from the power rating on the data plate supplied, then the service
technician must adjust the power rating before starting up for the first time.
8.1
Heat transfer takes place in the heat exchanger tubes. The heat exchanger tubes are
fitted with cleaning springs that also act as turbolators.
On the Easypell 16 and Easypell 25 boilers, some of these heat exchangers are sealed
off with sealing caps.
In this way, the heat exchanger area is adapted to the rated output.
Sealing caps:
Increasing the boiler power rating
1.
2.
3.
Reducing the boiler power rating
1.
2.
3.
Installing the turbulators and closure plugs
Remove the closure plugs from the ends of the heat exchanger tubes.
Insert the turbulators supplied into the heat exchanger tubes.
Hook the turbulators onto the ring of the cleaning system.
Unhook the turbulators from the ring of the cleaning system.
Remove the cleaning springs/turbulators from the heat exchanger tubes.
Close off the heat exchanger tubes using the closure plugs supplied.
25
Installation Manual
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