Warning:
Hose lengths depend on the data center’s overhead plenum configuration. The
low-pressure hose is usually shorter than the high-pressure hose.
17
Overhead Plenum Installation
Perform the following activities to install a Pressure Node in an overhead plenum.
1. Prepare diffuser hose and plenum.
a. Determine Pressure Node installation location on the wall near the overhead plenum.
b. Remove plenum cover.
c. Clean area where Pressure Node will reside with alcohol wipes. Allow area to dry thoroughly.
d. Determine necessary lengths for the low- and high-pressure hoses, using one-third/two-thirds
ratio (60” hose cut to 20” and 40” lengths) with the low-pressure hose usually shorter than the
high-pressure hose.
Warning:
Hose lengths depend on the data center’s overhead plenum configuration. The
ow-pressure hose is usually shorter than the high-pressure hose.
e. Cut diffuser hose into required
lengths using scissors or a
utility knife.
f.
Using gentle but firm
pressure, attach hoses to the
appropriate inlets on the
Pressure Node.
2. Activate, position, and secure the Pressure Node.
a. Once hoses are connected, activate Pressure Node by
inserting a thin blade screwdriver into the recessed slot of the
node and slide the switch to the
ON
position.
b. Ensure Pressure Node is active. Light Emitting Diodes
(LEDs) on the Pressure Node will blink during activation. Full
activation sequence lasts from 10 minutes to over an hour
depending on the network environment.
c. Attach 3M Command Strips to the underside of the Pressure
Node (if not already present). Remove adhesive covers from
3M Command Strips.
d. Install Pressure Node to the wall/ceiling and press firmly for
30 seconds to ensure a secure bond.
PRESSURE NODE INSTALLATION MANUAL
