Electrical Controls
General Recommendations
In order to ensure the normal operation of the unit electrical components, do not place the unit in dust, corrosive
gas or high humidity environment. If these situations exist, corrective measures must be taken.
WARNING - Hazardous Voltage!
Disconnect all electrical power, including remote disconnects before servicing. Follow proper lockout /
tagout (LOTO) 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. The installation (electrical) contractor must provide and install system
interlock wiring and power wiring. Specific electrical wiring diagrams are in
Trane wiring diagrams.
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 conduits, cables and wires to interfere with other components, structural members or equipment. All
conduits, cables and wires must have sufficient length to fit the location adjustment of compressors and starters.
Refer to below table for the recommended wire sizes.
Unit Size 110
330
400 440
Rated Voltage
(V/Hz/Ph)
/3
/3
/3
/3
/3
/3
0/3
400±10%/5
0/3
Circuit Qty.
1 2 2 2 2 3 3 4 4 4
Compressor Qty. 1 2 2 2 2 3 3 4 4 4
Fan Qty.
6 12 12 12 12 18 18 24 24 24
Size(KW)
1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5
RLA
(Rated Load
Amps, A)
195
195 195
---
195
195 195
--- --- --- --- ---
195
195 195
--- --- --- --- --- --- ---
195 195
LRA (Locked
Rotor Amps, A)
1161
1161 1161
---
1161
1161 1161
--- --- --- --- ---
1161
1161 1161
--- --- --- --- --- --- ---
1161 1161
(Full Load Amps,
A)
2.97
2.97 2.97
circuit
7
477/477 477/477