GeneralAire Perfect Platform - Manual

1
Perfect Platform™
Installation & Owner’s Manual
Read and Save These Instructions
Door
• Place the handle on the door using the two included #6 x 1/2” screws. Note: Only one of the doors has holes to
attach the handle. This door is to be located on the side for which the homeowner has access for replacing the
filter.
Filter Rail Spacer
• The filter spacer (4) is placed to the back of the filter track, closest to the door which is not accessible.
The open side of the spacer will be against the door.
Adjustable Center Assembly
• The center crossbar (1) is secured to the platform with the formed flanges down. Place the crossbar in place but
do not secure it to the platform until the intake duct adjuster (2) is in place.
• On the GAFB2843-4501 platform this crossbar can be adjusted to close the gap for a narrow air handler or
furnace.
Duct Flanges
• The flat duct flanges (3) need to be bent up 90° and are used to secure the intake duct to the platform.
• On the GAFB2843-4501 the intake duct adjuster (2) can be placed allowing for either 10” or 12” duct. The
formed flange should be facing up and is used to secure the intake duct to the platform. Once the adjuster is
positioned correctly four #8 x 3/8” screws are used to secure both the adjuster and crossbar to the platform.
One screw is used to secure the adjuster to the crossbar.
Duct Adaptors
• The duct adaptors (4) are used if you need to reduce the intake duct to 24”. The adaptors are placed where
indicated and holes are drilled in the platform. Use the clearance holes on the adaptors as the locators to drill
the platform holes. Do not drill holes elsewhere as this may interfere with the door. On the 2832 model the
shaded area of the duct adaptor will need to be cut off to allow the intake duct to fit over the adaptor.
Filter Size
The filter part number for the GAFB2843-4501 is GFI #4501 (5FM2025) MERV 10 or GFI #4551 (6FM2025) MERV 11.
Once the air handler or furnace and the duct are in place and secured the joints must be properly sealed to prevent
air leakage.
Form No. 2843-4501 REV A