Wiring; High Voltage Wiring; Thermostat Controls; Low Voltage Wiring - Intertek A/GPD1424 Series Installation Instructions Manual

Dual fuel gas-electric heating & cooling units
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WIRING

NOTE: All wiring should be made in accordance with the National Electrical Code.
Consult your local Power Company to determine the availability of sufficient power to operate the unit. Check the voltage,
frequency, and phase at the power supply to ensure it corresponds to the unit's RATED VOLTAGE REQUIREMENT.
In accordance with the N.E.C. or local codes, install a branch circuit fused disconnect near the unit. Determine wire sizes and
overcurrent protection from the unit nameplate ampacity and in accordance with the Minimum Filter Size or the N.E.C. The wiring
should never be sized smaller than is recommended by either of these two sources.
Fuses smaller than that recommended on the rating plate could result in unnecessary fuse failure or service calls. The use of
protective devices of larger size than indicated could result in extensive damage to the equipment. The manufacturer bears no
responsibility for damage caused to equipment as result of the use of larger than is recommended size protective devices.
All units have undergone a run test prior to packaging for shipment. This equipment has been started at minimum rated voltage and
checked for satisfactory operation. Do not attempt to operate this unit if the voltage is not within the minimum and maximum
voltages shown on nameplate.
All exterior wiring must be within approved weatherproof conduit. The unit must be permanently grounded in accordance with
local codes, or in absence of local codes, with N.E.C. ANSI/
NFPA NO. 70-1984 or latest edition by using ground lug in the
control box.
Fuses or HACR type circuit breakers may be used where codes
permit.
IMPORTANT NOTE: 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 contractor.
H
V
W
IGH
OLTAGE
IRING
The unit transformer is factory connected for 230V operation. If
the unit is to operate on 208V, reconnect the transformer primary
lead as shown on the unit wiring diagram. The induced draft blower
on some models is equipped with a low speed 230V lead (blue) and
a low speed 208V lead (black). If equipped, connect the induced
draft blower low speed 208V lead (black) in place of the low speed
230V lead (blue). Place the unused 230V lead on the "PARK" termi-
nal located on ignition control.
• Single Phase. Connect two leads to terminals L1 & L2 in
the electrical control section, using wire sizes specified in
wiring table.
T
C
HERMOSTAT
ONTROLS
RECOMMENDED: TSTATGTS3275 (Emerson Dual Fuel thermostat) with TSTATTSORS outdoor
temperature sensor.
ALTERNATE: A 1-stage cool/2-stage heat pump thermostat with OTDFPKG-01 outdoor tem-
perature sensor kit.
IMPORTANT NOTE: For optimal performance, an outdoor temperature sensor should be used
with the control thermostat to determine when the unit switches from heat pump mode to
gas mode. The unit is compatible with a standard heat pump thermostat with a minimum of 1
cool - 2 heat. If an outdoor sensor is not installed, the gas will not ignite until the control
thermostat calls for a 2nd stage of heat.
L
V
W
OW
OLTAGE
IRING
• Heat Pumps. Connect 24V wires from the thermostat to the corresponding wires in
the control box using No. 18 AWG as shown in the table at right:
I
W
NTERNAL
IRING
A diagram detailing the internal wiring of this unit is located on the Goodman labeled access panel. 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.
1. 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 table below. From the unit disconnect to the
unit, the smallest wire size allowable may be used for the ampacity, as the disconnect must be in sight of the unit.
2. Wire size based on 60°C rated wire insulation and 30°C Ambient Temperature (86°F).
3. For more than three conductors in a raceway or cable, see the N.E.C. for derating the ampacity of each conductor.
BRA NCH CIRCUIT A MPA CITY
SUPPLY WIRE LENGTH - FEET
200
150
100
50
11
15 20 25 30 35 40 45 50
6
4
4
4
3
3
8
6
6
4
4
4
10
8
8
6
6
6
14 12 10 10
8
8
Wiring Table
[A/G]PD14
24 - 48
Term inal
Therm ostat
W ire
Red
R (24V)
Green
G (fan)
Orange
O (rev. valve)
White
W1 (heat, 2nd)
Brown
W2 (heat, 3rd)
Yellow
Y (cool)
Blue
C (24V Com m on)
2
2
3
3
4
4
6
6

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