(Optional) Installing Cabinets

Prerequisites

The following tools are ready:

• Multimeter
• Flat-head screwdriver, Phillips screwdriver, and adjustable wrench
• Measuring tape, marker, powder marker, level, right angle, protective gloves
• Ladder
• M6 screw
• Floating nut mounting bar

Meters and other dedicated tools have been checked and calibrated.

Procedure

1. Check the installation environment and materials. Verify that:
   • The device types and quantity are the same as those in the packing list.
   • The cabinet appearance is in good condition and free of collision and scratch.
   • The area, height, and ground bearing capacity of the installation position meet the requirements.

2. Determine and outline the installation position.
   1. Check the engineering drawings to determine the position for installing the cabinet. Align the measuring tape with the upper edge of the installation position, and mark the upper edge by using a marker.
   2. Use the powder marker to outline the position for installing the cabinet.

      Figure 4-4 shows the outline for installing a single cabinet.

      Figure 4-4 Outline for installing a single cabinet
      

      Figure 4-5 shows the outline of the positions for installing combined cabinets.

      Figure 4-5 Outline for installing combined cabinets
      

3. Roll the cabinet on its castors to the installation position.
   1. Roll the cabinet to the outlined installation position.
   2. Align the cabinet edges with the outlined lines by using a right angle ruler, as shown in Figure 4-6.
      Figure 4-6 Placing a cabinet
      

   Ensure that the left or right edge of the cabinet and the outer edge of the rear door are aligned with the lines on the floor when positioning the cabinet.

4. Secure the cabinet on the floor using its leveling feet.
   1. Open the front and rear doors. See (1) in Figure 4-7.
   2. Rotate the four leveling feet clockwise by using a Phillips screwdriver to lower the leveling feet. See (2) in Figure 4-7.
   3. Rotate the M12 bolts at the bottom of the leveling feet clockwise by using an adjustable wrench to ensure that the leveling feet contact the floor and the castors hang in the air. See (3) in Figure 4-7.
      Figure 4-7 Securing a cabinet
      
      • Spin the castors by using a Phillips screwdriver. If the castors rotate freely, they are hanging in the air.
      • H indicates the height from the cabinet top to the floor. The value of H ranges from 1995 mm to 2005 mm. The height of the support feet is adjustable.
   4. Make sure that the heights measured from the front, rear, right, and left of the cabinet are the same.

5. Adjust the levelness and verticality of a cabinet by raising or lowering its leveling feet.
   1. Use a level and plumb line to check the levelness and verticality respectively.
   2. If the cabinet is not level, use an adjustable wrench to raise or lower the leveling feet.
   Figure 4-8 Leveling a cabinet
   
   • Check the levelness in the front and at the rear of the cabinet.
   • To check levelness, lay a level. If the bubble is in the middle of the level when it is static, the cabinet is level.
   • The height of a leveling foot is adjustable from 0 to 10 mm.

6. (Optional) After securing and leveling two or more adjacent cabinets, combine the cabinets.
   1. Remove the screws from the connection plates on the front and rear doors using a Phillips screwdriver. See (1) in Figure 4-9.
      • The cabinet in the middle provides four connection points on the front and rear doors respectively.
      • The cabinet on the leftmost or rightmost side provides two connection points on the front and rear doors respectively.
      • Ensure that the vertical deviation and the distance between cabinets are not greater than 3 mm after the cabinets are combined.
   2. Pass the connection plate through the gap on the cabinet door and secure it using the removed screws. See (2) in Figure 4-9.
      Figure 4-9 Combining adjacent cabinets
      
   3. Check that the cabinets are properly combined. See (3) in Figure 4-9.

7. Install PDUs.

   Power distribution units (PDUs) provide power for components in a cabinet. Install the PDUs vertically on the PDU installation plates on both sides at the back of the cabinet.

   1. Fit the upper and lower round tabs on the PDU rear panel into pear-shaped holes on the PDU installation plate and push them downwards to lock the PDU.
      Figure 4-10 Installing a PDU
      

      It is recommended that two persons collaborate to install the PDU so that PDU tabs can be easily oriented to the installation holes.

   2. Use the Phillips screwdriver and M6 screws to fix the PDU.
   3. Repeat 7.a and 7.b to install a PDU on the other side of the cabinet.

8. Install PGND cables and power cables for the cabinet.

   For details on how to install the PGND cables and power cables for the FR42612L cabinet, see Installing PGND Cables and Power Cables.

9. (Optional) Remove filler panels.

   If the cabinet has filler panels, remove them before installing devices. If the cabinet does not have filler panels, skip this step.

   1. Use a M6 Phillips screwdriver to remove M6 screws from the filler panel.
   2. Remove the filler panel from the cabinet.
   3. Use a floating nut mounting bar to remove floating nuts.

      If no floating nut mounting bar is available, a flat-head screwdriver can be used instead. When using a flat-head screwdriver to remove floating nuts, do not exert excessive force to prevent personal injury or damage to storage devices.

      Use the floating nut mounting bar to pull one foot of the floating nut downward, and then take the floating nut out. Repeat this step to remove all floating nuts.

      Figure 4-11 Removing a floating nut
      

Prerequisites

• Cabinets have been installed.
• The power switches of output terminals on the power distribution cabinet (PDC) are set to OFF.
• All circuit breakers on the cabinet PDUs are set to OFF.
• Required materials are available, including power cables, PGND cables, cable ties, wax strings, and PVC insulation tapes.
• Required tools are available, including the diagonal pliers, cable cutter, Phillips screwdriver, multimeter, and ladder.

Context

PDU connectors are the IEC60309-32A-compliant standard plug and socket, as shown in Figure 4-12. The connector close to the PDU is a male plug, which has been connected to the PDU power cable before delivery. The connector close to a PDC is a female socket. On the installation site, you must connect the AC power cable of the PDC to the female socket and then connect the male plug to the female socket.

Figure 4-12 PDU connectors

Procedure

1. Route PGND cables and power cables.
   1. Read Site Survey Report to determine the cabling mode, route, and length of PGND cables and power cables.

      A cabinet supports both overhead and underfloor cabling. This section uses overhead cabling as an example to describe how to route cables.

   2. Use a cable cutter to cut off a cable of a proper length, as shown in Figure 4-13.
      Figure 4-13 Cutting a cable
      

   3. Attach temporary labels to both ends of the cable for identification.

      The content on temporary labels can be either customized or be the same as that on engineering labels.

   4. Route PGND cables and power cables neatly along a cable tray, and keep them a proper distance from terminals to which they are to be connected.

2. Install terminals for PGND cables and power cables.

   For details on how to prepare terminals for PGND cables and power cables, see "Preparing Cables and Connectors" in the General Cable Operation Guide.

3. Install PGND cables.
   1. On the ground bar of a PDC, use a Phillips screwdriver to remove screws from ground terminals. Then, fix PGND cables, as shown in Figure 4-14.
      Figure 4-14 Fixing PGND cables on the ground bar
      

      The tightening torque must match the OT terminal specifications.

   2. Use a Phillips screwdriver to unfasten the ground terminal screw on the top or bottom of the cabinet mounting bar and fix the other end of the PGND cable to the ground terminal.
      • In overhead cabling, fix the other end of the PGND cable to the ground terminal on the top of the cabinet mounting bar.
      • In underfloor cabling, fix the other end of the PGND cable to the ground terminal on the bottom of the cabinet mounting bar.

4. Lift the cabinet top cover to an angle of approximately 30 degrees and take out the PDU connectors.

   It is recommended that two persons collaborate to perform this operation.

   1. Pull the positioning pins on the top cover of the rear cabinet door slightly and push the cabinet cover upwards to an angle of approximately 30 degrees. See (1) in Figure 4-15.
   2. Lead the two PDU connectors out of the two cable outlets on the cabinet cover. See (2) in Figure 4-15.
   3. Restore the cabinet cover.
   Figure 4-15 Taking out PDU connectors
   

5. Connect a power cable to the PDU female socket.

   To prevent fatal personal injury, ensure that the power switch of the PDC that supplies power to the cabinet is off.

   1. Separate the male plug from the female socket. See (1) in Figure 4-16.
   2. Unlock the buckle in the middle of the female socket and disassemble the female socket by spinning it counterclockwise. See (2) in Figure 4-16.
   3. Route the power cable through the PDU female socket. Connect the live line (brown), ground line (yellow-green), and neutral line (blue) respectively to the L/+ jack, jack, and unidentified jack of the female socket. Use a Phillips screwdriver to fasten the screws on the female socket to secure those lines. See (3) in Figure 4-16.
   4. Assemble the two parts of the female socket and insert the male plug to the female socket. See (4) in Figure 4-16.
   Figure 4-16 Connecting a power cable to the PDU female socket
   

6. Connect the other end of the power cable to the wiring terminals of the uninterruptible power system (UPS) or AC PDC, as shown in Figure 4-17.
   Figure 4-17 Connecting power cables to a PDC