32
RT-SVX071A-EN
Figure 38.
Fork pockets — 12.5 ton standard
efficiency units
NOTICE
Figure 39.
Fork pockets — 15 to 25 ton standard
efficiency units
REMOVE FORK LIFT BRACKETS
REMOVE WOODEN BOARDS
6. Lift the unit enough to allow the removal of base fork
pocket protection components as shown in the
following figures.
7. When C cabinet (digit 39 = C) units are installed on
smaller existing roof curb (50"x 84") for replacement
applications, do not remove alignment bracket. This
bracket helps assure proper alignment of duct
openings.
8. Downflow units; align the base rail of the unit with the
curb rail while lowering the unit onto the curb. Make
sure that the gasket on the curb is not damaged while
positioning the unit.
General Unit Requirements
The checklist listed below is a summary of the steps
required to successfully install a commercial unit. This
checklist is intended to acquaint the installing personnel
with what is required in the installation process. It does not
replace the detailed instructions called out in the applicable
sections of this manual.
•
Check the unit for shipping damage and material
shortage; file a freight claim and notify appropriate
sales representative.
•
Verify correct model, options and voltage from unit
nameplate.
•
Verify that the installation location of the unit will
provide the required clearance for proper operation.
•
Assemble and install the roof curb (if applicable). Refer
to the latest edition of the curb installers guide that
ships with each curb kit.
•
Fabricate and install ductwork; secure ductwork to
curb.
•
Install pitch pocket for power supply through building
roof. (If applicable)
•
Rigging the unit.
•
Set the unit onto the curb; check for levelness.
•
Ensure unit-to-curb seal is tight and without buckles or
cracks.
•
Install and connect a condensate drain line to the
evaporator drain connection.
Factory Installed Economizer
•
Ensure the economizer has been pulled out into the
operating position. Refer to the economizer installers
guide for proper position and setup.
•
Install all access panels.
External Vent Hood Installation
Note:
This procedure applies only to 15 to 25 tons Gas
Heat Models only.
1. Remove and discard the cover plate located on the gas
heat panel.
Important:
•
Make sure you read the label located on
the cover plate before you discard it.
•
Do not discard the fastening screws! They
will be needed to install the vent hood.
