Installer-Supplied Components; Power Supply Wiring; Control Power Supply - Trane RTWD Installation Operation & Maintenance

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 fi eld-wired
connections
• All control (interconnecting) wiring (in conduit) for
fi eld supplied devices
• Fused-disconnect switches

Power Supply Wiring

All power supply wiring must be sized and selected
accordingly by the project engineer in accordance with
standard IEC 60364. All wiring must comply with local
codes. 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 fusedisconnect
switches. The type and installation location(s) of
the fused-disconnect switches must comply with all
applicable codes.
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.
To provide proper phasing of 3 phase input, make
connections as shown in fi eld wiring diagrams and as
stated on the yellow WARNING label in the starter panel.
Proper equipment grounds must be provided to each
ground connection in the panel.
CAUTION! 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.

Control Power Supply

Chiller is provided with control power transformer, it
is not necessary to provide additional control power
voltage to the unit.
RLC-SVX14H-GB

Installer-Supplied Components

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 fi eld-wired
connections.
• All control (interconnecting) wiring (in conduit) for
fi eld supplied devices.
• Fused-disconnect switches or circuit breakers.
• Power factor correction capacitors.
Power Supply Wiring
WARNING Ground Wire! All fi eld-installed wiring must
be completed by qualifi ed personnel. All fi eld-installed
wiring must comply with local codes and regulations.
Failure to follow this instruction could result in death or
serious injuries. All power supply wiring must be sized
and selected accordingly in accordance with local codes
and regulations.
CAUTION!
RTWD HSE versions must not be linked to the neutral
wiring of the installation.
WARNING Hazardous Voltage! Disconnect all electric
power, including remote disconnects before servicing.
Follow proper lockout/tagout procedures to ensure
the power can not be inadvertently energized. Failure
to disconnect power before servicing could result
in death or serious injury. All wiring must comply
with local codes and regulations. 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 local codes and regulations.
To provide proper phasing of 3-phase input, make
connections as shown in fi 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).110 volt fi eld-provided connections (either
control or power) are made through knockouts on the
right side of the panel for RTWD SE, HE, XE and RTUD
or bottom side for RTWD HSE. Additional grounds may
be required for each 110 volt power supply to the unit.
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