4 INSTALLATION
WARNING! Arc flash and electric shock hazard. Open all local and remote electric power-supply
disconnect switches, verify with a voltmeter that power is Off and wear appropriate,
OSHA-approved personal protective equipment (PPE) per NFPA 70E before working with the
unit. Failure to comply can cause serious injury or death. Before proceeding with installation,
read all instructions, verify that all the parts are included and check the nameplate to be sure
the voltage matches available utility power. The unit controller does not isolate power from the
unit, even in the “Unit Off” mode. Some internal components require and receive power even
during the “Unit Off” mode of the controller.
WARNING! Risk of handling heavy unit and component parts. Can cause injury and equipment
damage. Use OSHA-recommended safe lifting techniques and/or lifting equipment rated for the
weight of the unit. Unit weights are specified in Table 1.3 on page5.
CAUTION: Risk of contact with sharp edges, splinters, and exposed fasteners. Can causeinjury.
Only properly trained and qualified personnel wearing appropriate, OSHA-approved PPEshould
attempt to move, lift, remove packaging from or prepare the unit for installation.
4.1 Mounting the Unit in the Cabinet
The unit is secured to the cabinet rails with mounting brackets shown in Figure 4.1 on the next page.
Each bracket has four 0.27-in. (7-mm) slots spaced 5.5in. (133.3mm) apart for attachment to the EIA rail.
1. Remove brackets 1 and 4 from the unit, set aside the fasteners for re-attachement.
2. At the front of the cabinet, slide the back of the unit into the cabinet until brackets 1 and 3 are
flush against the rack rails, see Figure 4.2 on page15.
3. Re-attach brackets 1 and 4 to the rear of the unit using the removed fasteners, then secure all
four brackets to the rack rails using the provided M6 panel screws and floating nuts.
4 Installation
13
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