(Optional) Installing Cabinets

Prerequisites

The following required tools have been prepared:

• 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 instruments must be tested and adjusted before use.

Procedure

1. Before installing a cabinet, check the installation environment and materials.
   1. Check whether the device types and quantity are the same as those in the Packing List.
   2. Check whether the cabinet appearance is in good condition and free of collision and scratch.
   3. Check whether the area, height, and ground bearing capacity of the installation position meet related requirements.

2. Draw the cabinet installation outline to determine the installation position.
   1. Check the engineering drawings to determine the positions 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 positions for installing the cabinet.

      Figure 4-41 shows the outline of the positions for installing a single cabinet.

   Figure 4-41 Outline for installing a single cabinet
   

   Figure 4-42 shows the outline of the positions for installing combined cabinets.

   Figure 4-42 Outline for installing combined cabinets
   

3. Roll a cabinet on its castors to the installation position.
   1. Roll the cabinet to the outlined installation position.
   2. Use a right angle to compare the cabinet outer edges with the installation position outline on the ground, and ensure that the outer edges align with the outline.
   Figure 4-43 Placing a cabinet
   

   When using a right angle to determine the cabinet position, ensure that the left or right side of the cabinet and the outer edge of the rear door are aligned with the outline on the floor.

4. Secure a cabinet to the floor at its leveling feet.
   1. Open the front and rear doors. See (1) in Figure 4-44.
   2. Loosen the four leveling feet clockwise by using a Phillips screwdriver. See (2) in Figure 4-44.
   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 ground and the castors hang in the air. See (3) in Figure 4-44.
      Figure 4-44 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 top of the cabinet to the ground. The value of H ranges from 1995 mm to 2005 mm and can be changed by adjusting the support feet.
   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 adjust the support feet.
   Figure 4-45 Leveling a cabinet
   
   • Check the levelness in the front of the cabinet and at the rear of the cabinet.
   • To check the levelness, lay a level. If the bubbles are in the middle of the level when they are static, the position you want to check is level.

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 4-46.
      • The cabinet in the middle provides four connection points on the front and rear doors respectively.
      • A 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 4-46.
      Figure 4-46 Combining adjacent cabinets
      

   3. Check the combined cabinets. See (3) in Figure 4-46.

7. Install a PDU.

   A power distribution unit (PDU) provides power for components in a cabinet. Install the PDU vertically on the PDU installation plate 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 4-47 Installing a PDU
      

      To ensure that PDU tabs can be easily oriented to the installation holes, two persons are recommended for this operation.

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

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

   For details about 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 planned installation positions in a cabinet are covered with filler panels, remove them before installation. If the planned installation positions are not covered with 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 a floating nut mounting bar is unavailable, you can remove the floating nuts by using a flat-head screwdriver. When using a flat-head screwdriver to remove floating nuts, do not apply excessive force and pay attention not to injure your hands or damage storage devices.

      1. Use the floating nut mounting bar to pull one foot of the floating nut downward, and then take the floating nut out.
         Figure 4-48 Removing a floating nut
         

      2. Repeat 9.c.i to remove other floating nuts.

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 PDUs are set to OFF.
• Required materials have been prepared, including power cables, PGND cables, cable ties, wax strings, and PVC insulation tapes.
• Required tools have been prepared, including diagonal pliers, cable cutters, Phillips screwdrivers, multimeters, and ladders.

Context

A PDU connector is the IEC60309-32A-compliant standard plug and socket, as shown in Figure 4-49. The connector used to connect to the PDU is a male plug that has been connected to the PDU power cable before delivery. The connector used to connect to a PDC is a female socket. At the installation site, you need to connect the AC power cable of the PDC to the female socket and then connect the male plug to the female socket.

Figure 4-49 PDU connector

Procedure

1. Route PGND cables and power cables.
   1. Read the Site Survey Report to determine the layout, routing, 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 illustrate how to route cables.

   2. Use a cable cutter to cut off a piece of cable, and reserve a proper length, as shown in Figure 4-50.
      Figure 4-50 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 about how to prepare terminals for PGND cables and power cables, see Preparing Cables and Connectors.

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 4-51.
      Figure 4-51 Fixing PGND cables on the ground bar
      

      The tightening torque must match with the OT terminal specifications.

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

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

   The recommended number of persons to complete the preceding step is two.

   1. Pull the positioning pins on the cover of the rear cabinet door slightly and push the cabinet cover upwards to an angle of approximately 30 degrees. See (1) in Figure 4-52.
   2. Lead the two PDU connectors out of the two cable outlets on the cabinet cover. See (2) in Figure 4-52.
   3. Restore the cabinet cover.
   Figure 4-52 Taking out PDU connectors
   

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

   The power switch of the PDC for providing power for the cabinet must remain off to prevent fatal personal injury.

   1. Separate the male plug from the female socket. See (1) in Figure 4-53.
   2. Unlock the buckle in the middle of the female socket and disassemble the female socket by spinning it counterclockwise. See (2) in Figure 4-53.
   3. Route the power cable through the PDU female socket and connect a live line (brown), PGND cable (yellow and green), and neutral wire (blue) respectively to the L/+ jack, jack, and unidentified jack. Use a Phillips screwdriver to fasten the screws on the female socket to secure those cables. See (3) in Figure 4-53.
   4. Assemble the two parts of the female socket and insert the male plug to the female socket. See (4) in Figure 4-53.
   Figure 4-53 Connecting a power cable to the PDU female socket
   

6. Connect the other end of the power cable to the wiring terminal of the uninterruptible power system (UPS), AC PDC, or AC distribution box, as shown in Figure 4-54.
   Figure 4-54 Connecting power cables to a PDC