62
CDHH-SVX003C-EN
NOTICE
Motor Damage!
Failure to wire PFCCs into the starter correctly could
cause misapplication of these capacitors and result in
a loss of motor overload protection and subsequently
cause motor damage.
Note: Graphic labels (shown above) are used for CE
application only.
Important:
• Before servicing, disconnect all power
sources and allow at least 30 minutes for
capacitors to discharge.
• All electrical enclosures—unit or remote—
are IP2X.
PFCCs must be wired one of two ways as shown as
explained in the following figures and accompanying
text (Option 1 and Option 2).
Figure 41. Option 1—PFCCs installed downstream of
starter contactor, upstream of current transformers
Power
Circuit
1
2
3
Fused
Disconnect
or Suitable
Breaker
Motor Starter
Contactor
Motor
Current
Transformer
Fuses
Enclosed
3-phase
Capacitor
Unit
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.
Note: Graphic labels (shown above) are used for CE
application only.
Important:
• Before servicing, disconnect all power
sources and allow at least 30 minutes for
capacitors to discharge.
• All electrical enclosures—unit or remote—
are IP2X.
Simultaneously disconnect capacitors and load from line
power. If the capacitors are not switched offline when the
load is disconnected, they continue to add capacitance to
the electrical distribution system. A leading power factor
and too much capacitance may eventually develop. This
overprotection causes poor voltage regulation (i.e., voltage
is high when the circuit is unloaded, then drops as loads
are added).
Power Supply Wiring
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