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9.5.5 Installing 2T sensors on racks
Both temperature sensors attached to a 2T sensor housing are to be installed on 1 rack. The sensor
can be attached to the inside or outside of the rack's front door.
• One temperature sensor is to be attached near the top of the rack’s front door by using a cable tie
to secure the wire to the perforation (approx. 12" [305mm] from the top). Do not wrap a cable tie
around the actual sensor on the end of the wire. This sensor will monitor for hot air wrapping over
the top of the rack from the hot aisle.
• The other temperature sensor is to be attached to the rack's front door, centered in front of the
heat generating equipment that will be drawing in air.
• If the rack is completely filled with equipment, locate the sensor in the middle of the door,
width and height.
• If the rack is partially filled with equipment, locate the sensor in the center of the equipment
on the front door.
•Do NOT
• Install a sensor in the hot aisle
• Leave a sensor coiled on top of or inside the rack.
• With the temperature sensors in place, neatly route the wires up the rack door and into the rack
using the supplied cable ties. Be sure to leave an appropriate amount of slack in the cable to allow
the rack door to open and close without binding or pinching the wires.
• Affix the 2T sensor housing to the rack using the supplied hook-and-loop fastener. It is recom-
mended that the housing be installed in an easily accessible space with the sensor number label
visible in case the housing needs accessed at a later time.
• Repeat this process until all sensors have been installed.
Figure 37 2T rack sensors installed on neighboring racks
2T SENSOR CHAIN
Approx. center
of rack/in front
of IT equipment.
Install temperature sensors on the
perforated portion of the rack door
using the supplied zip-ties.
Ensure that the doors swing freely without
binding cables.
305
(12in)
Source DPN001983 rev0