Operating instructions
39
912.808.1 - IT
INSTALLATION AND OPERATING MANUAL
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Key to LED‘s:
LED COLOUR LED STATUS OPERATING STATUS
DL1 RED OFF NO ALARMS
DL1 RED 1 FLASH EVERY 3 SECONDS EXTERNAL PROBE FAULTY
DL1 RED 2 FLASHES EVERY 1 SECOND DOMESTIC HOT WATER PROBE FAULTY
DL1 RED 3 FLASHES EVERY 1 SECOND HEATING PROBE FAULTY
DL1 RED ON ON/OFF VALVE CLOSED
DL2 GREEN OFF NO POWER
DL2 GREEN ON ZONE I HEAT DEMAND (MIXED)
DL2 GREEN 1 FLASH EVERY 0.5 SECONDS POWER ON (NON-OPENTHERM AMBIENT THERMOSTAT)
DL2 GREEN 1 FLASH EVERY 0.5 SECONDS POWER ON (OPENTHERM: QAA73 AMBIENT THERMO-
STAT)
DL3 GREEN ON ZONE II PUMP FEED (HIGH TEMPERATURE)
DL4 GREEN ON ZONE 1 PUMP FEED (MIXED)
DL5 GREEN ON ON/OFF VALVE SERVOMOTOR POWER INPUT
DL6 GREEN ON DOMESTIC HOT WATER CIRCULATION PUMP (NON-OPE-
RATIVE)
DL7 GREEN ON ZONE II VALVE OPEN
DL8 GREEN ON DOMESTIC HOT WATER THREE-WAY VALVE
DL9 GREEN ON HEATING THREE-WAY VALVE
DL10 GREEN ON DOMESTIC HOT WATER DEMAND
DL11 GREEN ON ON/OFF VALVE OPEN (AT TRAVEL STOP)
DL12 RED ON SAFETY THERMOSTAT TRIPPED (*)
DL12 RED FLASHING AFTER SAFETY THERMOSTAT RESET (*)
DL13 GREEN ON ZONE II HEAT DEMAND
22. ELECTRONIC BOARD SIGNALS (MODELS RS – RSP – R2Z – RS2Z)
(*) Safety thermostat tripping
If the safety thermostat trips due to a fault in the adjustment system, the user module stops for safety reasons and the red
LED DL12 shines on the electronic board.
After checking the reason for the overheating, restart the system by pressing the safety thermostat reset device and
momen- tarily disconnecting the power supply from the module (this operation is required in order to cancel the block
from the board memory: the red LED DL12 flashes). In case this device trips repeatedly, contact the technical assistance
service.