Sensor Location And Mounting; Figure 130 Top Entry Route The Canbus Wire Into The Cooling Unit-300Mm (12") Dx - Emerson Liebert CRV User Manual

Figure 130 Top entry route the CANbus wire into the cooling unit-300mm (12") DX

Temperature and
Humidity
Sensor Housing
(factory-wired
to the Liebert iCOM
13.7

Sensor Location and Mounting

Both temperature and humidity sensors attached to a 2T sensor housing are to be installed on the
same rack. The sensor may 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 (approximate 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
securing them with 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. Emerson
recommends installing the housing in an easily accessible space with the sensor number label
visible for maintenance and troubleshooting.
• Repeat this process until all sensors have been installed.
2T Sensor Wiring
Access Point
®
Factory Wiring
Low-Voltage
Field Wiring
149
Remote Rack Sensor Wiring
Sensor wire exits through this
knockout. Additional 2T
sensors may be connected in
a daisy chain to monitor
conditions at additional racks.
Liebert
® ™
CRV