Technical information

Alarm table

Display Alarm type Reset

A1 Antifreeze alarm Manual

Aht High temperature at start-up (if activated, P20=1) Automatic

ALt Low temperature at start-up (if activated, P20=1) Automatic

E1 B1 sensor Automatic

E2 B2 sensor Automatic

E3 B3 sensor Automatic

E4 B4 sensor Automatic

ELS Low supply voltage Automatic

EHS High supply voltage Automatic

EPr Eprom. error. Unit operating. Automatic

EPb Eprom. error. At start-up Automatic

EL 1-2 Problem at fan voltage control Automatic

FL Flow switch / pump protector Manual

Hc1/Hc2 Compressor maintenance alarm Automatic

HP High pressure Manual

Ht High water temperature alarm Automatic

LP Low pressure Manual

PC1 Compressor partialisation (high pressure) Automatic

tC1 Fan heat switches Manual

1 Technical Information

1.13 Operating instructions