Alarms; Alarm Codes - LU-VE Emeritus LU1W Manual De Usuario

The LU1W controller signals anomalies and alarms via DO11 output, changeover contact. The activation logic of the
alarm contact is "fail safe", i.e. the output remains active in the absence of anomalies (excited output relay) and is
deactivated when an alarm condition occurs.
Alarms are mainly divided into two categories:
• Alarms with automatic reset as soon as the anomaly is solved
• Alarms requiring a manual reset by the user (via interface display or MODBUS), persisting even when the cause of
the alarm has subsided
For alarm display and reset, see section 3.6 Alarms in progress and alarm history.
Depending on the type, the alarm may consist of a simple warning, or involve different responses (activation /
deactivation of some features, etc.). The next paragraph contains the descriptions of the alarm codes displayed in the
alarm screens, the type of alarm (automatic or manual reset) and any measures implemented by the controller when
the alarms occur.

13.1 Alarm Codes

code Alarm Description
ES01 Adjustment Probe 1 Error
(Condensing/wet outlet temp.)
ES02 Adjustment Probe 2 Error
(Condensing Circuit 2)
ES03 Adjustment Probe 3 Error
(Condensing Circuit 3)
ES04 Outdoor temperature probe error
ES05 Master control signal error
ES06 Inlet Water Temperature Probe Error
ES07 Spray Water Pressure Transducer Error
ES08 Adiabatic Panel Flow Meter Error
ES09 Water pH measurement probe error
ES10 Water conductivity measurement probe error
ES11 Mode change Analogue Input Error
ERTC Broken/low battery RTC
AL01 Master Anomaly
AL02 Spray water high pressure pump alarm
AL03 Adiabatic panel tank pump alarm
ASH1 Annual spray operation hours exceeded
(warning)
LU1W - User Manual

13 ALARMS

Type consequence
Auto Report Only
Auto Report Only
Auto Report Only
Auto Inhibits the features that
use it
Auto Turns on controlling the
controller with its own
probes (when it is SLAVE)
Auto Report Only
Auto Inhibits the features that
use it
Auto Inhibits the features that
use it
Auto Inhibits the features that
use it
Auto Inhibits the features that
use it
Auto It inhibits the mode of
operation from DI
Man It inhibits the features
that use it
Man Turns on controlling the
controller with its own
probes (when it is SLAVE)
Man Block Spray Adjustment
Man See PA08
Auto Report Only
98
NOTES
Without reference
ventilation is forced to
PF23
Without reference
ventilation is forced to
PF23
REV.1.1 – 07/11/2017 - ENG