Vertiv Liebert XD Series, System Design Manual

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4.11 Low-Voltage Wiring—Liebert XDO Smart Modules
Low-voltage connections to the Liebert XDO are available only on smart modules.
Viewing the Liebert XDO from the front or from above, the low-voltage terminal block is on the right side of
the module (see Figure 4.17 on the facing page). Make low-voltage connections on these modules
according to site-specific drawings. The module must be installed in accordance with national and local
wiring regulations.
For Liebert XDO smart modules, the low-voltage connections are on the electric box inside the Liebert
XDO. Knockouts for the low-voltage connections are on the front of the Liebert XDO, near the top (see
Figure 4.17 on the facing page).
Terminal block connections 37, 38 and 82 through 87 can be connected to a monitoring unit, such as
Liebert SiteScan®. The remote shutdown, condensate detection alarm and fan failure alarms operate
independently of each other.
• Contacts 37 and 38 are for remote shutdown.
• Contacts terminals 82, 83 and 84 are activated by the condensate detection alarm.
• T82 is used for normally open contact closure requirements.
• T83 is common.
• T84 is used when normally closed contact closure is required.
• Contacts terminals 85, 86 and 87 are activated by the fan failure alarm.
• T85 is for normally open contact closure requirements.
• T86 is common.
• T87 is used when normally closed contact closure is required. The condensate detection
alarm and the fan failure alarm operate independently of each other.
• P66 and P67 are CAN bus ports.
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