35
Field wiring must comply with the National Electric Code
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Power Wiring
It is important that proper electrical power from a commercial
utility is available at the condensing unit contactor. Voltage
ranges for operation.
Install a branch circuit disconnect within sight of the unit
ANDOFADEQUATESIZETOHANDLETHESTARTINGCURRENT
Power wiring must be run in a rain-tight conduit. Conduit
must be run through the connector panel below the access
cover and attached to the bottom of the control box.
Connect power wiring to contactor located in outdoor
CONDENSING UNIT ELECTRICAL BOX 3EE WIRING DIAGRAM
ATTACHEDTOUNITACCESSPANEL
Check all electrical connections, including factory wiring
within the unit and make sure all connections are tight.
DO NOT connect aluminum field wire to the contactor
terminals.
Electrical Wiring
Electrical Wiring
Grounding
A grounding lug is provided near the contactor for a ground
wire.
WARNING: The unit must be permanently
grounded. Failure to do so can cause electrical shock
resulting in severe personal injury or death.
Control Wiring
If the low voltage control wiring is run in conduit with
the power supply, Class I insulation is required. Class II
insulation is required if run separate. Low voltage wiring
may be run through the insulated bushing provided in
THEHOLEINTHEBASEPANELUPTOANDATTACHEDTOTHE
pigtails from the bottom of the control box. Conduit can be
run to the base panel if desired by removing the insulated
bushing.
A thermostat and a 24 volt, 40 VA minimum transformer
are required for the control circuit of the condensing unit.
The furnace or the air handler transformer may be used if
sufficient. See the wiring diagram for reference. Use Table
TOSIZETHEVOLTCONTROLWIRING
TABLE 5
VOLTAGE RANGES (60 HZ)
Operating Voltage Range at Copeland
Nameplate Voltage Maximum Load Design Conditions for
Compressors
208/230 (1 Phase) 197 - 253
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