Grounding The Cabinet - Trane Liquid-Cooled Adaptive Frequency AFDE Installation, Operation And Maintenance Manual

WARNING
Hazardous Voltage/Improper Grounding!
Hazardous voltage due to improperly grounded
electrical components could result in death or serious
injury. The motor controller has a chassis ground that
must be connected to an earth ground.
Note: Graphic labels (shown above) are used for CE
application only.
Table 4. Standard wiring requirements AFD control wiring (between the chiller and the starter)
AFD Starter to Control Panel
Control Wiring
AFD 120Vac Power Supply (hot)
AFD 120Vac Power Supply (neutral)
Ground
Ref/Oil Pump Interlock (2K11)
Condenser High Pressure Cutout (3S1)
Recomm Bus +24V
Recomm Bus Ground
Recomm Bus Com +
Recomm Bus -

Grounding the Cabinet

Note: Follow Applicable Codes! The user is responsible
for conforming to all applicable, local, national, and
international codes. Failure to observe this
precaution could result in damage to, or
destruction of, the equipment.
Use the following steps to ground the cabinet:
1. Open the left-hand enclosure door of the drive. The
grounding stud is located just above and to the right of
the breaker.
2. Run a suitable earth ground (completed by field) to the
cabinet's ground connection point. The grounding lug
AFDE-SVU02F-EN
X39003893001A
Control Panel Terminations
Starter Panel CVHE, CVHF,
Terminations CVHG
2X1-1 1X1-1
2X1-15 1X1-12
2X1-11 1X1-G
LLID 1A7
2X1-7, 2X1-8
J2-4, J2-2
2X1-3, 2X1-4
N/A
(shield to 2X1-5)
2A32-1 WB2 to 1A1, J4-1
2A32-2 WB2 to 1A1, J4-2
2A32-3 WB2 to 1A1, J4-3
2A32-4 WB2 to 1A1, J4-4
Input Power and Control Wiring
Important:
• Before servicing, disconnect all power sources and
allow at least 10 minutes for capacitors to discharge.
• All electrical enclosures-unit or remote-are IP2X.
CVHH
1X1-1
1X1-G
LLID 1K17
J2-3, J2-1
N/A
WB2 to 1T2, J4-1
WB2 to 1T2, J4-2
WB2 to 1T2, J4-3
WB2 to 1T2, J4-4
is capable of accepting up to 2–600 MCM wire. For
AWG/MCM equivalents in mm2, refer to
Tighten the ground connections to 375 in·lb
(42.4 N·m).
Comment
Panel ground.
Normally open.
Normally closed. Operates the gate kill
input on 2A2-TB33.
4-wire bus WB2 connects to power
supply module, terminals J4-1, 2, 3,
and 4
Table 2, p. 31.
33