Installing a -48 Vdc Power Distribution System 29
Practice 450-1011-201
Installing the Rear Doors and Fan Covers for the Cabinets
Once the cabinets and jumper assemblies have been installed, you can install
the rear doors and fan covers. There should be one door and one fan cover
for each cabinet. These assemblies are packed with the jumper assemblies in
the long cartons, along with a small plastic bag containing the rear door
hardware.
Note: The rear doors can be installed to open from either the left or
right. Typically, they are installed to open from the right. A
hingepin is installed on the bottom of a jumper assembly in each
cabinet. It is installed on either the right or the left as follows:
•
on the right side of each horizontal jumper and the input jumper for
doors opening from the right
•
on the left side of each horizontal jumper and the terminating jumper
for doors opening from the left.
The plastic bag of hardware should include:
1
Mounting bracket (secures the fan cover)
1
Top pin
1
Bottom pin and bracket
1
Bottom screw and washer
1
Top screw (for Allen wrench) and washer.
Although one person is able to install these assemblies, you may wish to have
the assistance of a second person.
(1)
With the 1/4-inch nutdriver, loosen (but don't remove) the two inner
screws on the two fans at the top of the cabinet. (See Fig. 4-9 for an
illustration of these procedures.)
(2)
Locate the fan cover mounting bracket in the hardware packet and
position it so that it extends outward.
(3)
Secure the mounting bracket at the bottom center of the fan cover to the
cabinet with the flat-blade screw provided with the hardware.
(4)
Push the fan cover up into position at the top of the cabinet, while
leaving the bottom portion of the cover free.
(5)
Locate the small metal hingepin in the hardware packet. Insert it into the
top of the rear door assembly.
