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RT-SVX073A-EN
Figure 19. Wire routing and connections
Electric Heat Power Wires - Routed through the hole
at the air handler side end wall. Route wires one by one
and connect to the electric heat terminal block.
Electric Heat Control Wires - Routed through
the hole at the air handler side end wall. Remove
wire ties at hole area to improve power wire
routing. Terminate at high voltage junction box.
High Voltage Junction Box
Motor Power Wires are routed through the bottom opening and
terminated at high voltage junction box. Control wires on the right
side of unit have similar routing.
Motor Power Wires and Heater
Control Wires from the main
control box will be terminated at
the high voltage junction box by
the factory.
Electric Heat
Terminal Block
General Installation
Requirements
The checklist below is a summary of the steps required to
successfully install a Commercial rooftop 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.
☐ Complete “Unit Inspection,” p. 12 checklist.
☐ Verify that the installation location of the unit will
provide the required clearance for proper operation.
☐ Assemble and install the roof curb. Refer to the current
edition of the roof curb installer’s guide.
☐ Fabricate and install ductwork; secure ductwork to
curb. Seal the corners of duct adapters as shown
below. Ducting attached to the unit should be self
supporting. Do not use the unit to support the weight of
the ducting.
☐ Install pitch pocket for power supply through building
roof. (If applicable).
Figure 20. Sealed ductwork
Note: Customer to seal duct
adapter corners as shown
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 condensate drain lines to each
evaporator drain connection.
☐ Remove the shipping hardware from each compressor
assembly.
Installation
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