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☐ 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 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 version of the curb installation instructions
that ships with each curb kit.
☐ Fabricate and install ductwork. Secure ductwork to
curb.
☐ If applicable, install pitch pocket for power supply
through building roof.
☐ Rig the unit.
☐ Set the unit on the curb and verify the unit is level.
☐ Confirm unit-to-curb seal is tight, without buckles or
cracks.
☐ Install and connect a condensate drain line to the
evaporator drain connection.
Factory Installed Economizer
•
Confirm the economizer has been pulled out into the
operating position. Refer to the economizer installation
instructions for proper position and setup.
•
Install all access panels.
External Vent Hood Installation
Note: This procedure applies to 12.5 to 25 tons gas heat
models.
1. Remove and discard the cover plate located on the gas
heat panel.
Important:
•
Read the label located on the cover plate
before discarding.
•
Do not discard the fastening screws! They
will be needed to install the vent hood.
RT-SVX077B-EN
Figure 16. Discard cover plate
2. Locate the vent hood behind the panel.
Figure 17. Vent hood shipping location
Note: The above figure shows two-stage gas. Modulating
gas is similar.
3. Install the vent hood on the gas heat panel using the
screws removed in Step 1 and secure to the panel.
Installation
23
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