User manual

Operation
Liebert
®
iCOM
®
70
3.10.2 User Inputs
The user can connect and specify up to four inputs depending on unit configuration. The user inputs
are digital inputs that can provide information about an event associated with the unit or space. The
customer input configuration settings are in the Service menu under Set Alarms, Screen 2 of 7. The
choices for the customer inputs are shown in Table 10 along with their associated reaction. The
customer inputs can be programmed as normally open or normally closed to alarm. A terminal strip is
provided in the cooling unit to connect your contact closure to. You have the ability to set the control
to react on an open or closed contact.
NOTE
To enabled/disabled, delay activation and set event type (alarm, warn, message) see Event
Types on page 67.
Table 10 Customer inputs
Setting Reaction
Smoke Event Only
Water Alarm Event Only
C PMP Alarm Event Only
Flow Alarm Event Only
Stdby G Pmp Event Only
Stdby Unit Event Only
C-Input 1 Event Only
C-Input 2 Event Only
C-Input 3 Event Only
C-Input 4 Event Only
Rht Lockout Event + Electrical Heaters Disabled
Hum Lockout Event + Humidifier Disabled
Rht+Hum Lock Event + Electrical Heaters and Humidifier Disabled
Comp Lockout Event + Compressor(s) Disabled w/o Pump Down
Call Service Event Only
High Temp Event Only
Air Loss Event Only
FC Lockout Event + Free-Cooling Disabled
Heater Alarm Event + Heaters Off (Liebert PeX
™
Only)
Flow AL SD Event + Shut Down the Unit
Flow AL LC
Event + Lockout Compressors, No Pump Down (enabled only if at least one compressor
is on; auto-reset depends on input status)
Comp Lock PD Event + Compressor(s) Disabled w/ Pump Down
Enable FC Forces Free-Cooling to On
HTRJ VFD Activates the HEAT REJ VFD ALARM; no other function
HTRJ TVSS Activates the HEAT REJ TVSS ALARM; no other function
FIRE ALARM Event + Shuts The Unit Down
2
ND
SETPOINT No Event But Switches To The Second Setpoint
NO POWER Event + Disables Unit
LSI Event + Activates Humidifier Problem Alarm And Stop Filling Bottle When Full
COND 1 FAIL Event Only
COND 2 FAIL Event Only
D-SCROLL RED Event + Reduces The Requested Compressor Capacity By 20%
SWAP VALVE No Event -active X Valve Closes And Y Opens / Inactive Y Closes And X Opens
EC FAN FAULT Event + Sets Analog Output To 10v
ECO AIRFLOW Event + Reduces Economizer Airflow
DAMPERSWITCH Damper + End Switch
POWER A Event Only
POWER B Event Only