7
Fuses or HACR type circuit breakers may be used where codes
permit.
NOTE: Low voltage connectors do not apply to heat pumps with
electric heat. Low voltage connectors apply only to WPC units
with electric heat.
IMPORTANT: Some single-phase units are equipped with a
single-pole contactor. Exercise caution when servicing as only
one leg of the power supply is broken with the contactor.
To wire the unit, make the following high- and low-voltage
connections.
High Voltage Wiring
■
Single Phase—2 leads should be connected to terminals
L1 and L2 in the electrical control section, using wire sizes
specified in the wiring diagram.
■
3-Phase—3 leads should be connected to terminals L1,
L2 and L3 in the electrical control section, using wire sizes
specified in the wiring diagram.
Low Voltage Wiring
■
Air Conditioners—Connect 24V wires from the thermostat to
the corresponding wires in the control box using Number
18 AWG as follows:
*Optional field installed heat connections
■
Heat pumps—Connect 24V wires from the thermostat to the
corresponding wires in the control box using Number 18
AWG as follows:
*Optional field installed heat connections
Internal Wiring
A diagram detailing the internal wiring of this unit is located on
the electrical box cover. If any of the original wire supplied with
the appliance must be replaced, the wire gauge and insulation
must be the same as the original wiring.
Transformer is wired for 230 volts on the 208/230 models. See
the wiring diagram for 208-volt wiring.
■
For branch circuit wiring (main power supply to unit
disconnect), the minimum wire size for the length of run can
be determined using the circuit ampacity found on the unit
rating plate and the following Branch Circuit Ampacity chart.
■
From the unit disconnect to unit, the smallest wire size
allowable may be used for the ampacity, as the Disconnect
must be in sight of the unit.
■
Route the field supply wires through the line voltage conduit
opening to the electrical connection area, providing sufficient
length to connect to the pigtail leads.
■
Wire size based on 60°C rated wire insulation and 30°C
ambient temperature (86°F [30ºC]).
■
For more than 3 conductors in a raceway or cable, see the
N.E.C. for derating the ampacity of each conductor.
R
W
G
G
W
For Internal Wiring, See Wiring Label Attached To Unit
Low Voltage Connectors
Y
Cool
Fan
Common
Heat
Y
R
T1
T2
L1
L2
High Voltage Power Wiring
24-Volt Control Wiring
High Voltage
Disconnect
Switch
Thermostat Subbase
Contactor
T3
L3
*See Note.
To avoid the risk of fire or equipment damage, use
copper conductors.
WARNING
Goodman 6
HIGH VOLTAGE!
WARNING
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death.
Lead
Thermostat
Red
R (24V)
Green
G (Fan)
Yellow
Y (Cool)
White
W1 (Heat)*
Brown
W2 (Heat)*
Lead
Thermostat
Red
R (24V)
Green
G (Fan)
Orange
O (Rev. Valve)
White
W1 (Heat, 2
nd
)*
Brown
W2 (Heat, 3
rd
)*
Yellow
Y1 (Cool)
Blue
C (24V Common)
Branch Circuit
Ampacity
Supply Wire
Length—ft (m)
15
20
25
30
35
40
45
50
200 (61)
6
4
4
4
3
3
2
2
150 (45.7)
8
6
6
4
4
4
3
3
100 (30.5)
10
8
8
6
6
6
4
4
50 (15.2)
14
12
10
10
8
8
6
6
