Alarm Z1 Too much refrigerant in cooling circuit — Overfilled refrigerant

What does 5527 mean?

This alarm is activated if the temperature JR1 is more than 5°C above TC3, and the subcooling exceeds the set point for over 5 minutes during hot water production. It indicates the heat pump is overfilled with refrigerant.

• Heat pump overfilled with refrigerant.

Click steps to track your progress.

1. 1

   Evacuate the heat pump to remove excess refrigerant.

2. 2

   Refill the heat pump with the exact quantity of refrigerant specified on the type plate.

3. 3

   Ensure the refrigerant charge is accurate to prevent recurrence.