Installation Electrical; General Recommendations; Installer-Supplied Components; Power Supply Wiring - Trane Sintesis RTAF Installation, Operation And Maintenance Manual

Installation Electrical

General Recommendations

As you review this manual, keep in mind that:
• All field-installed wiring must conform to National
Electric Code (NEC) guidelines, and any applicable
state and local codes. Be sure to satisfy proper
equipment grounding requirements per NEC.
• Compressor motor and unit electrical data (including
motor kW, voltage utilization range, rated load amps)
is listed on the chiller nameplate.
• All field-installed wiring must be checked for proper
terminations, and for possible shorts or grounds.
Note: Always refer to wiring diagrams shipped with
chiller or unit submittal for specific electrical
schematic and connection information.
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. 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.
For additional information regarding the safe discharge
of capacitors, see PROD-SVB06A-EN
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes.
NOTICE:
Use Copper Conductors Only!
Failure to use copper conductors could result in
equipment damage as unit terminals are not designed
to accept other types of conductors.
Important: To prevent control malfunctions, do not run
low voltage wiring (<30 V) in conduit with
conductors carrying more than 30 volts.
RTAF-SVX001A-EN

Installer-Supplied Components

Power Supply Wiring

NOTICE:
Use Copper Conductors Only!
Failure to use copper conductors could result in
equipment damage as unit terminals are not designed
to accept other types of conductors.
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 or circuit breakers.
To provide proper phasing of 3-phase input, see field
wiring drawings for correct wiring. Proper equipment
grounds must be provided to each ground connection in
the panel.

Control Power Supply

Chiller is provided with control power transformer. It is not
necessary to provide additional control power voltage to
the unit. No other loads should be connected to the control
power transformer
All units are factory-connected for appropriate labeled
voltages.
Heater Power Supply
The evaporator shell is insulated from ambient air and
protected from freezing for temperatures down to -4°F by
shell trace heaters and two thermostatically-controlled
immersion heaters, combined with evaporator pump
activation throughTracer™ UC800. Whenever the
ambient temperature drops below 32°F , the thermostat
energizes the heaters and theTracer UC800 activates the
pumps. If ambient temperatures below -4°F are expected,
contact yourTrane local office.
NOTICE:
Equipment Damage!
Control panel main processor does not verify
thermostat operation. A qualified technician must
confirm operation of the thermostat to avoid
catastrophic damage to the evaporator.
NOTICE:
Equipment Damage!
If evaporator water is drained, evaporator heaters must
be disconnected to prevent overheating.
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