Trane-Supplied Starter Wiring
Table 10. Standard field power wiring requirements
Power Supply Wiring to
Starter Panel
Starter Panel Terminals
3-Phase Line Voltage: Terminal
Block (2TB3 or 2X3)
2X3-U1, V1, V1, and PE
3-Phase Line Voltage: Circuit
Breaker
2Q1-2X3-U1, V1, V1, and PE
Starter to Motor Power
Wiring
Starters
Remote Starter to Chiller Mo-
tor Junction Box
T1 through T6
Starter to Control Panel
120 Vac Control Wiring
Starter Panel Terminals
Unit Control Panel
Terminations
Max Terminal Wire
Size
Minimum Circuit
Ampacity
120 Vac Power Supply (from
starter to control panel)
2X1-1, 2X1-2
2X1-20 (Ground)
1X1-1, 1X1-12
1X1-18 (Ground)
High Pressure Cutout to Start-
er
2X1-4
1X1-4
14 ga. (2.5 mm
2
)
20
1Q1 Circuit Breaker to Starter
2X1-6
1X1-3
14 ga. (2.5 mm
2
)
20
Oil Pump Interlock
2X1-7, 2X1-8
1A7-J2-4, 1A7-J2-2
14 ga. (2.5 mm
2
)
20
Low Voltage Circuits less
than 30 Vac
Starter Panel Terminals
Unit Control Panel
Terminations
Standard Circuits
Inter Processor Communica-
tions (IPC) Remote Mounted
2A1- J3-3-4, or 2X1-12 to 13 if
present (do not ground shield at
starter)
1A1-J5-1-2, 3-4 Shield
ground at 1X1- 22
(GND) only.
2 wire with ground
Comm link.
Note:
All wiring to be in accordance with National Electrical Code and any local codes.
2. Auxiliary equipment must be powered from other sources as the chiller control panel power supplies are sized for
the chiller loads only.
(a)
Ground lug for a unit-mounted solid state starter or wye-delta starter is sized to accept 14 AWG solid to 8 AWG
strand wire. For AWG/MCM equivalents in mm
2
. If local codes require different lug size, it
must be field- supplied and -installed.
(b)
Refer to submittal and ship-with wiring schematics for voltage requirements.
(c)
Must be separated from 120 Vac and higher wiring.
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RELEASED 10/Mar/2020 06:59:20 GMT