Performing Diagnostics; Cooling Unit Status Led; Enabling Manual Mode For Diagnostics - Vertiv Liebert iCOM DP400/500 Installer/User Manual

11 PERFORMING DIAGNOSTICS

NOTE: Depending on the type of thermal management unit, included components, and control settings of your
system, all of the options listed may not be available on your iCOM display.
NOTE: Your Liebert® DSE™ Packaged Solution does not offer humidification or dehumidification functions. Please
disregard those settings/fields when mentioned in this guide or displayed on the iCOM controller.

11.1 Cooling Unit Status LED

Just below the iCOM touchscreen display is an LED that changes color and flashes on-off indicating cooling unit status. See
Table 11.1 below, for the LED colors and meanings.

11.2 Enabling Manual Mode for Diagnostics

Use manual mode to test components, validate operation, and evaluate performance.
NOTE: When manual mode is enabled, the cooling unit does not operate normally:
• Fan operation depends on the diagnostic category in use.
• Safety routines will prevent the use of some diagnostic features.
• Active alarms may prevent some the use of some diagnostic functions.
• In most cases, all components are turned-off.
NOTE: When manual mode is disabled, all components and the cooling unit return to normal operation. See
Diagnostics Manual Mode
operation resumes.
1. Touch
The MANUAL MODE panel displays.
2. Touch the Enable check box in the upper-right of the MANUAL MODE panel.
The MANUAL MODE confirmation dialog opens.
3. Touch OK to enable manual mode.
Enable is checked and manual control for diagnostics enabled.
• Touch Cancel to close the dialog and manual mode remains disabled.
11 Performing Diagnostics
Table 11.1 Cooling Unit LED Colors and State Meanings
State Color(s) Meaning
Solid Green Powered on and operating.
Solid Amber In diagnostic/service mode or powered off.
Solid Red Active warning or alarm present and acknowledged.
Flashing Amber/Green In sleep or U2U standby mode and available to operate.
Flashing Red/Green Operating with an active warning or alarm.
Flashing Amber/Red Shut down (not operating) because of an unacknowledged alarm.
Flashing Red Active warning or alarm present but unacknowledged.
Flashing Blue iCOM display is starting-up or updating iCOM firmware.
on the next page. Manual mode times-out after 30 minutes of inactivity and normal
, then > Diagnostic/Service > Diagnostics > Manual Mode in the Category list.
Disabling
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