American Power Conversion AP9621 User Manual

8 

 

 

1.  Install the mounting rails using the instructions contained 

in the Rail Kit. 

2.  Slide the Step-Down Transformer frame into the rack. 

 

The Step-Down Transformer is heavy. 
Three people must support the unit. 

3.  To secure the Step-Down Transformer frame in the rack, 

screw the four decorative screws through the

 

holes in the 

ears of the UPS and into the screw clips. 

4.  If the bezel has not already been attached, align the tabs 

on the sides of the bezel with the slots on the front of the 
Step-Down Transformer and gently snap it into place. 

 

 

Install the bezel with the rear fins 
facing down. 

 

The Step-Down Transformer is packaged in a robust shipping carton. Carefully remove the package contents. The 
packaging is recyclable; save it for reuse or dispose of it properly. 

Inspect the equipment upon receipt. APC has designed robust packaging for your product. However, accidents 
and damage may occur during shipment. Notify the carrier and dealer if there is damage or missing equipment. 

Check the packaging contents. The shipping package contains the Step-Down Transformer, mounting rails, and 
mounting hardware.  Your package may contain a Bezel Kit.  If the bezel is not already installed, snap it on to the 
UPS as instructed below

.

 

This section provides information on the steps required to install and connect the Step-Down Transformer.

Follow the instructions contained in the Addendum SU Rack-Mount Rails 2U-5U sheet (990-7034G) to mount 
the rails in your NetShelter or 19 in (46.5 cm) rack. 

*It is recommended that the Step-Down Transformer is installed directly above the UPS in the rack.