34 RTAC-SVX002A-EN
Installation Electrical
Installer-Supplied Components
Customer wiring interface connections
are shown in the electrical schematics
and connection diagrams that are
shipped with the unit. The installer must
provide the following components if not
ordered with the unit:
• Power supply wiring (in conduit) for all
eld-wired connections.
• All control (interconnecting) wiring (in
conduit) for eld supplied devices.
• Fused disconnect switches or circuit
breakers.
• Power factor correction capacitors.
(optional)
Power Supply Wiring
All power supply wiring must be sized
and selected accordingly by the project
engineer in accordance with NEC Table
310-16.
WARNING
Hazardous Voltage w/Capacitors!
Disconnect all electric power,
including remote disconnects before
servicing. Follow proper lockout/
tagout procedures to ensure the
power cannot be inadvertently
energized. For variable frequency
drives or other energy storing
components provided by Trane
or others, refer to the appropriate
manufacturer’s literature for
allowable waiting periods for
discharge of capacitors. Verify with
an appropriate voltmeter that all
capacitors have discharged. Failure
to disconnect power and discharge
capacitors before servicing could
result in death or serious injury.
Note: For additional information
regarding the safe discharge of
capacitors, see PROD-SVB06A-EN or
PROD-SVB06A-FR
All wiring must comply with local codes
and the National Electrical Code. The
installing (or electrical) contractor
must provide and install the system
interconnecting wiring, as well as the
power supply wiring. It must be properly
sized and equipped with the appropriate
fused disconnect switches.
The type and installation location(s) of
the fused disconnects must comply with
all applicable codes.
CAUTION
Use Copper Conductors Only!
Unit terminals are not designed to
accept other types of conductors.
Failure to use copper conductors
may result in equipment damage.
Cut holes into the sides of the control
panel for the appropriately-sized power
wiring conduits. The wiring is passed
through these conduits and connected
to the terminal blocks, optional unit-
mounted disconnects, or HACR type
breakers. Refer to Figure31.
To provide proper phasing of 3-phase
input, make connections as shown in
eld wiring diagrams and as stated on
the WARNING label in the starter panel.
For additional information on proper
phasing, refer to “Unit Voltage Phasing.”
Proper equipment ground must be
provided to each ground connection
in the panel (one for each customer-
supplied conductor per phase).
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