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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 is listed on
the chiller nameplate.
•
All field-installed wiring must be checked for proper
terminations, and for possible shorts or grounds.
•
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.
Notes:
•
Always refer to wiring diagrams shipped with chiller or
unit submittal for specific electrical schematic and
connection information.
•
All conduit must be long enough to allow compressor
and starter removal.
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/national electrical codes.
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 a CAT III or IV voltmeter rated
per NFPA 70E that all capacitors have discharged.
RTHD-SVX01K-EN
Important:
Do not allow conduit to interfere with other
components, structural members or
equipment. Control voltage (115V) wiring in
conduit must be separate from conduit
carrying low voltage (<30V) wiring. To
prevent control malfunctions, do not run
low voltage wiring (<30 V) in conduit with
conductors carrying more than 30 volts.
Electrical Data
Standard Units with Wye-Delta Starter
See
"Electrical Data Table Information," p.
component sizing should be based on actual jobsite
operating conditions. This factor can be obtained through
the use of TOPSS™.
Table 11. Compressor motor electrical data (60 Hz) —
standard units (wye-delta starter)
Compressor
Voltage
(a)
(b)
Code
Max kW
200
230
B1, B2
380
460
575
200
230
C1, C2
380
460
575
200
230
D1, D2
380
460
575
(a) Unit model number digits 6 & 7.
(b) Voltage utilization ranges: 200V (180-220)m 230V (205-254), 380V
(342-418), 460V (414-506), 575V (516-633).
(c) The RLA @ Max kW is based on the performance of the motor developing
full rated horsepower.
40. Electrical
RLA @
Max
LRA
LRA
(c)
kW
(Wye)
(Delta)
174
557
970
3103
174
484
818
2617
174
291
488
1561
174
241
400
1280
174
193
329
1053
249
812
1173
3634
249
698
936
2901
249
421
558
1727
249
349
469
1453
249
279
375
1162
329
1047
1690
5477
329
918
1532
4966
329
549
850
2755
329
455
730
2366
329
367
612
1984
39
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