Installing Optional Items
11
To install a sensor on a Knurr rack frame member:
1. Assemble the Liebert SN and sensor bracket:
a. Insert the sensor bracket base into one end of the sensor support as shown in
Figure 11
.
b. Snap the sensor into the other end of the sensor support.
2. Choose where in the rack to install the sensor assembly. Emerson recommends placing the sensor
in the area that is likely to be warmest.
3. Hold the sensor bracket on a T-slot on the Knurr rack frame where the sensor will be placed.
4. Insert the included quarter-turn fastener through the rectangular hole in the sensor bracket base
and into the T-slot (see
Figure 11
).
5. Turn the fastener clockwise 90 degrees, a quarter of a turn.
6. Route the sensor cable to the Liebert RPC and insert it into the card’s external sensor port.
For further details, refer to the Liebert RPC user manual, SL-20825, which shipped with the card
and is available at Liebert’s Web site:
www.liebert.com
Figure 11
Temperature/humidity sensor mounting
Sensor Bracket Base
Quarter-Turn Fastener
Rectangular protrusion passes
through bracket slot (above) and
into T-slot on Knurr rack frame
member (below).
Sensor Support
Liebert SN Sensor
snapped into support
Liebert SN
Sensor Cable
