Trane RTHD

RTHD-SVX01D-EN 57
Installation Electrical
General Recommendations
For proper electrical component operation, do not locate the unit in areas
exposed to dust, dirt, corrosive fumes, or excessive humidity. If any of these
conditions exist, corrective action must be taken.
 WARNING
Hazardous Voltage!
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. Failure to disconnect power and
discharge capacitors before servicing could result in death or
serious injury.
All wiring must comply with local and National Electric Codes. Minimum cir-
cuit ampacities and other unit electrical data is on the unit nameplate. See the
unit order specifications for actual electrical data. Specific electrical schemat-
ics and connection diagrams are shipped with the unit.
Typical wiring diagrams are in the back of this manual.
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.
Do not allow conduit to interfere with other components, structural members
or equipment. All conduit must be long enough to allow compressor and
starter removal.
NOTE: To prevent control malfunctions, do not run low voltage wiring (<30V)
in conduit with conductors carrying more than 30 volts.
Power Supply Wiring
Model RTHD chillers are designed according to NEC Article 310-15; therefore,
all power supply wiring must be sized and selected accordingly by the project
engineer.
For a complete discussion on the use of conductors, see Trane Engineering
Bulletin EB-MSCR-40.
Refer to Trane Engineering Bulletin CTV-EB-93 for power wire sizing.
Water Pump Power Supply
Provide power supply wiring with fused disconnect for both the chilled water
and condenser water pumps.