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CVHE-SVX02M-EN
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Trane-supplied Starter Wiring
Table 15. Standard field power wiring requirements
Power Supply Wiring
to Starter Panel
Starter Panel
Terminals
3-Phase Line Voltage 2X3-L1, L2, L3, and Ground
(a)
3-Phase Line Voltage: Circuit Breaker 2Q1-L1, L2, L3, and Ground
Starter to Motor Power Wiring
Starter Motor
Remote Starter to Chiller Motor Junction Box
T1 through T6 T1 through T6
Starter to Control Panel
120 Vac Control Wiring
Starter Panel
Terminals
Unit Control Panel
Terminations
Max Terminal Wire
Size (AWG)
(b)
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)
8 40
High Pressure Cutout to Starter
2X1-4 1X1-4 14 20
1Q1 Circuit Breaker to Starter
(c)
1X1-3 14 20
Oil Pump Interlock 2X1-7, 2X1-8 1A7-J2-4, 1A7-J2-2
14 20
Low Voltage Circuits
Less Than 30 Vac
Starter Panel
Terminals
Unit Control Panel
Terminations
Standard Circuits
Inter-processor Communications (IPC)
Remote-Mounted
(d)
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 Gound
Comm Link
Notes:
1. All wiring to be in accordance with National Electrical Code (NEC) and any local codes.
2. Oil pump motor: 1 Ph, 3/4 HP, 11.7 full load amps at 115 Vac.
3. 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. If local codes require different
lug size, it must be field-supplied and -installed.
(b)
Wires, lugs, and fuses/breakers are sized based on National Electric Code NEC [NFPA 70] and UL 1995.
(c)
1Q1 Circuit Breaker to Starter connects to 2X16 Starter Panel Terminal for all starter types except the AFDG (Trane-supplied remote Danfoss AFD); for the
AFDG, 1Q1 Circuit Breaker to Starter connects to 2X13 Starter Panel Terminal.
(d)
Must be separated from 120 Vac and higher wiring.
NNoottee:: Control Power Transformer (CPTR, Enhanced
Electrical Protection Package option): A unit-
mounted, factory-wired, separate enclosure
positioned next to the control panel is available
when separate source control power is required.
This permits the controls to remain powered
while the three-phase line voltage is
disconnected. Contact your local Trane
representative for more information.
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