A:
Flame impedance and temperature value
B:
Ladder symbol: calibration menu
C:
Flame symbol: ignition. The unit burns.
D:
Speed (rpm/10)
E:
Boiler capacity (%)
P2:
ok | reset
P3:
CH temperature down
Notice
The start current calibration starts automatically when the calibration is started.
Manual calibration
1. Start the system.
2. Connect the flue gas analyzer to the appliance. Two options for connection are available:
It is preferred to measure the flue gases with mounted front cover. To enable that, use an external
sampling point in the vent system, just above the appliance.
Or in case this point would not be available; Connection point for thermal fuse flue gas sensor. See figure 1.2
(D) for exact location. Remove the thermal fuse sensor to obtain flue gas analyzer access.
Warning
Make sure the flue gas analyzer connection point is closed after performance of the calibration procedure.
Failure to do so may result in serious injury or death.
Important NOTE:
Before starting calibration make sure the boiler can transport the produced energy into the
system. For an H model boiler it will perform calibration ONLY in heating circuit so you must turn on all thermostats
and open all zones/pumps before performing auto or manual calibration. In a C model you can do the same OR
run dhw demand showing at MINIMUM 8L flow on the screen of the boiler before starting calibration.
3. Simultaneously press [P2] and [P3] until th
e text ’test’ appears in the display.
• The ’ladder’ symbol flashes in the display.
• The fan speed (rpm) increases until the start speed is reached. The display shows the speed of the fan.
• The capacity of 100% flashes on the right in the display. 1 and 00 appear alternately in the display.
• The starter current is determined and the boiler ignites. The ’flame’ symbol and the text ‘ok’ appear when the
flame is stable.
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