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INSTALLATION OPERATIONS AND MAINTENANCE MANUAL - VORT NRG MEGA-R SERIES
19. DIAGNOSIS AND TROUBLESHOOTING
19.1 Troubleshooting
All units are checked and tested at the factory before delivery, however, it is possible that some anomaly or failure may occur
during operation.
It is recommended to reset an identification alarm only after removing the cause that generated it; repeated
resets may result in irreversible damage to the unit.
CODE
ALARM DESCRIPTION
RESET
CONSEQUENCE
AL07
Heater overheating alarm
Manual
Turns off all the heaters and forces the fans to 100%
AL08
Air filter pressure switch
Manual
Display only
AL13
Fire/smoke alarm
(1)
Automatic
Turns off all devices
AL18
Ambient/return air sensor faulty or disconnected
Automatic
Disables regulations that depends on it
AL19
Supply air sensor faulty or disconnected
Automatic
Disables regulations that depends on it
AL20
Outdoor air sensor faulty or disconnected
Automatic
Disables regulations that depends on it
AL22
Exhaust air sensor faulty or disconnected
Automatic
Disables regulations that depends on it
AL23
Duct pressure sensor faulty or disconnected
Automatic
Disables regulations that depends on it
AL24
Air quality sensor faulty or disconnected
Automatic
Disables regulations that depends on it
AL28
I/O configuration error
Automatic
Turns off all devices
AL29
RTC faulty or disconnected
Automatic
Disabled time band management
(1)
These alarms cause the turn off of the unit, putting it on the OFF by alarm status.
