User manual

Operation
69 Liebert
®
iCOM
®
3.10.1 High- and Low-Temperature and Humidity Events
High- and low-temperature and humidity alarms can be set for both the internal and optional
external sensors. If a sensor reading exceeds a preset threshold, a warning will appear. These
warnings are ignored after unit startup for a minimum of 1 minute. To increase the delay to warn, see
3.10 - Event Types and Properties. The threshold settings are located in both the User and Service
menus under Set Alarms.
To apply threshold limits on the internal cooling unit sensors, the Return Sensor Alarms must be
enabled. The high and low temperature and humidity internal sensor thresholds can then be set. To
apply threshold limits on the optional external sensors, the Sensor A alarms must be enabled. The
high and low temperature and humidity external sensor thresholds can then be set. If no external
sensors are connected to the unit, it is recommended that the Sensor A Alarms be disabled.
Condensate 1 Failure 0 5 seconds / 0-9999 WRN
Condensate 2 Failure 0 5 seconds / 0-9999 WRN
EC Fan Fault 0 10 seconds / 0-9999 ALM
HIGH SUP TEMP 0 30 seconds / 0-9999 WRN
LOW SUP TEMP 0 30 seconds / 0-9999 ALM
REDUCED ECO AIRFLOW 0 3 seconds / 0-9999 WRN
ECO HI TEMP OVERRIDE 0 10 seconds / 0-9999 WRN
TEMP CTRL SENSOR FAIL 0 3 seconds / 0-9999 ALM
HIGH DEW POINT 0 30 seconds / 0-9999 WRN
LOW DEW POINT 0 30 seconds / 0-9999 WRN
HI DEW POINT SENSOR A 0 30 seconds / 0-9999 WRN
LOW DEW POINT SENSOR A 0 30 seconds / 0-9999 WRN
HIGH REMOTE SENSOR 0 30 seconds / 0-9999 WRN
POWER “A” FAILURE 0 10 seconds / 0-9999 ALM
POWER “B” FAILURE 0 10 seconds / 0-9999 ALM
AIRFLOW SENSOR FAILURE 0 10 seconds / 0-9999 WRN
HUM CTRL SENSOR FAIL 0 30 seconds / 0-9999 WRN
LOSS OF FLOW 0 5 seconds / 0-9999 ALM
STAT PRES SENSOR FAIL 0 120 seconds / 0-9999 ALM
LOW STATIC PRESSURE 0 120 seconds / 0-9999 WRN
HIGH STATIC PRESSURE 0 120 seconds / 0-9999 WRN
STATPRES OUT OF RANGE 0 150 seconds / 0-9999 WRN
DAMPER FAILURE 0 10 seconds / 0-9999 ALM
BMS DISCONNECTED 0 ENABLED / DIS - ENAB WRN
NOTE
The event messages will automatically reset if the temperature/humidity stays 1.8°F
(1°C)/ 2% RH below or above the threshold for one minute.
Table 9 Possible event settings—some events not available in all units (continued)
Event
Internal Delay
(Before Action Occurs)
Default Delay / Selectable
(Before Action Occurs)
Type
(default)