CVHH-SVX001A-EN 51
Power Supply Wiring
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.
Three-Phase Power
Review and follow the guidelines below to properly install
and connect the power supply wiring to the starter panel:
• Verify that the starter nameplate ratings are
compatible with the power supply characteristics and
with the electrical data on the unit nameplate.
•Do not modify or cut enclosure to provide electrical
access. Removable panels have been provided, and
any modification should be done away from the
enclosure. If the starter enclosure must be cut to
provide electrical access, exercise care to prevent
debris from falling inside the enclosure.
• Use copper conductors to connect the three-phase
power supply to the remote- or unit-mounted starter
panel.
• Flexible conduit connections are recommended to
enhance serviceability and minimize vibration
transmission.
• Size the power supply wiring in accordance with NEC
and local guidelines, using the RLA value stamped on
the chiller nameplate and transformer load on L1 and
L2.
• Confirm that wire size is compatible with lug size stated
in unit submittal.
• Make sure that the incoming power wiring is properly
phased; each power supply conduit run to the starter
must carry the correct number of conductors to ensure
equal phase representation.
Note: Connect L1, L2, and L3 (shown below) per
starter diagram provided with chiller.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state/ national electrical codes.
NOTICE:
Starter Component Damage!
Failure to remove debris from inside the starter panel
could result in an electrical short and could cause
serious starter component damage.
NOTICE:
Use Copper Conductors Only!
Failure to use copper conductors could result in
equipment damage as unit terminals are not designed
to accept other types of conductors.
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