RRU-SVX01F-EN
23
Installation
Supply Ductwork
Elbows with turning vanes or splitters are recommended
to minimize air noise due to turbulence and to reduce
static pressure.
When attaching the ductwork to the unit, provide a water-
tight flexible connector at the unit to prevent operating
sounds from transmitting through the ductwork.
All outdoor ductwork between the unit and the structure
should be weather proofed after installation is completed.
Note:
For sound consideration, cut only the holes in the
roof deck for the ductwork penetrations. Do not cut
out the entire roof deck within the curb perimeter.
If a Curb Accessory Kit is not used:
1. The ductwork can be attached directly to the factory-
provided flanges around the unit’s supply and return
air openings. Be sure to use flexible duct connections
at the unit.
2. For “built-up” curbs supplied by others, gaskets must
be installed around the curb perimeter flange and the
supply and return air opening flanges.
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.
Main Electrical Power
Requirements
WARNING
Refrigerant under High Pressure!
Failure to follow instructions below could result in an
explosion which could result in death or serious injury
or equipment damage.
System contains refrigerant under high pressure.
Recover refrigerant to relieve pressure before opening
the system. See unit nameplate for refrigerant type. Do
not use non-approved refrigerants, refrigerant
substitutes, or refrigerant additives.
WARNING
Hazardous Voltage w/Capacitors!
Failure to disconnect power and discharge capacitors
before servicing could result in death or serious injury.
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. Verify with an appropriate
voltmeter that all capacitors have discharged.
WARNING
Harmful Ultraviolet (UV) Lights!
Failure to follow instructions below could result in
death or serious injury and equipment damage. Do not
field install ultraviolet lights in Trane air handling
equipment for the intended purpose of improving
indoor air quality. High intensity C-band ultraviolet light
is known to severely damage polymer (plastic)
materials and poses a personal safety risk to anyone
exposed to the light without proper personal protective
equipment (can cause damage to eyes and skin).
Polymer materials commonly found in HVAC equipment
that may be susceptible include insulation on electrical
wiring, fan belts, thermal insulation, various fasteners
and bushings. Trane accepts no responsibility for the
performance or operation of our air handling
equipment in which ultraviolet devices were installed
outside of the Trane factory.
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
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.
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.
Verify that the power supply complies with the unit
nameplate specifications.
Inspect all control panel components; tighten any
loose connections.
