- Bithermic & Winter Mode: pump runs for the defined over run time (3sec). This is for transferring
the remaining energy to the CH circuit.
- Bithermic & Summer Mode: if the temperature detected by the CH temperature sensor is more
then 75°C, the pump will run for 1 sec., otherwise it will not run.
¨ In CH Mode:
- Pump always runs when CH mode is active. After the CH mode is ended, the pump will run for
the defined period of time (10 min.)
- If the boiler is switched to summer mode when CH mode is active, pump over run time is 5 sec.
Pump Anti-Seize Function
5
The pump may be blocked if not used for a long period of time. To prevent this, 24 hours after the
pump has run for the last time, it is run for 5 sec. in CH mode.
3 Way Anti-Seize Function
6
In monothermic models, 3 way valve blocking protection becomes active with pump blocking
protection and changes position to prevent blocking.
Fault/Error Conditions
7
Fan does not run in lock out and blocking conditions. Pump will not run only in low water pressure
condition.
30
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