Installation manual

Coopra Advanced Heating Technologies Installation manual 40 EN
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8.11.7. Inspection / cleaning / replacement of the ionisation
probe
• unplug the plug of the ionisation probe (low voltage).
• remove the two screws from the ionisation clamp.
• remove the ionisation probe from the lid of the unit.
• check the ionisation probe.
• the ionisation probe must be straight and clean (a slight
deposit is normal).
• clean or replace the ionisation probe.
8.11.8. Ionisation probe or ionisation cable makes short
circuit with earth
The negatively charged ions created by the burner form the
ionisation current to earth. if there is short circuit to earth, the
Manager cannot measure any current.
Repair short circuit.
8.11.9. Boiler pump
The boiler pump transports the system water through the primary
heat exchanger for heating the system.
If the temperature difference between flow and return is greater
than 30°C, the pump switches to a high speed
. When the
temperature difference drops below 10°C again, the pump
switches back to a low speed.