19
13.3 CONTROL WIRING
(See Figure 5)
If the low voltage control wiring is run in conduit with the power supply, Class I insu-
lation is required. Class II insulation is required if run separate. Low voltage wiring
may be run through the insulated bushing provided in the 7/8” [22.2 mm] hole in the
base panel, up to and attached to the 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.
TABLE 4
VOLTAGE RANGES (60 HZ)
Operating Voltage Range at Copeland
Nameplate Voltage Maximum Load Design Conditions for
Compressors
208/230 (1 Phase) 197 - 253
FIGURE 5
CONTROL WIRING FOR AIR HANDLER
NOTES:
1. Jumper “E” to “W2” to
transfer control of
supplemental heat to
1st stage when the
emergency heat switch
is on.
2. This wire turns on heat
for defrost, omit for most
economical operation.
3. Wire with colored tracing
stripe.
B
W2
G
Y
W1
B
ODD
C
R
Air Handler
Y
G
W2
E
Heat Pump Thermostat
Heat Pump
Outdoor Unit
Y
B
C
R
R
D
C
Y
Field Installed
Line Voltage
-
WIRING INFORMATION
Factory Standard
-
W/BL
G/BK
Y
W/BK
G/Y
BR
BL
R
NOTE: RED WIRE REQUIRED WITH RANCO DDL DEMAND DEFROST CONTROL.
TYPICAL THERMOSTAT:
HEAT PUMP WITH
ELECTRIC HEAT
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