Electrical Connections - Supply Voltage; Air Handler Only (Non-Heat Kit Models); Air Handler - Non-Circuit Breaker Heat Kits; Air Handler With Circuit Breaker Heat Kit - Goodman RS6200006 Installation And Operationg Instructions

12.4 Electrical Connections – Supply Voltage
IMPORTANT NOTE: USE COPPER CONDUCTORS
ONLY.
Knockouts are provided on the air handler top panel
and sides of the cabinet to allow for the entry of the
supply voltage conductors, as shown in Figure 13. If
the knockouts on the cabinet sides are used for electri-
cal conduit, an adapter ring must be used in order to
meet UL1995 safety requirements. An NEC or CEC
approved strain relief is to be used at this entry point.
Some codes/municipalities require the supply wire to
be enclosed in conduit. Consult your local codes.
Top of
Cabinet
KNOCK-OUT FOR ELECTRICAL CONNECTIONS

12.4.1 Air Handler Only (Non-Heat Kit Models)

The power supply connects to the stripped black and
red wires contained in the air handler electrical com-
partment. Attach the supply wires to the air handler
conductors as shown in the unit wiring diagram using
appropriately sized solderless connectors or other NEC
or CEC approved means. A ground lug is also pro-
vided in the electrical compartment. The ground wire
from the power supply must be connected to this ground
lug.

12.4.2 Air Handler - Non-Circuit Breaker Heat Kits

A terminal block is provided with the HKS kit to attach
the power supply and air handler connections. Follow
the HKS Installation Manual and wiring diagram for
complete wiring details.

12.4.3 Air Handler With Circuit Breaker Heat Kit

The air handler has a plastic cover on the upper ac-
cess panel that will require either one or both sections
to be removed to allow the heat kit circuit breaker(s) to
be installed. The circuit breakers have lugs for power
supply connection. See the HKS Installation Instruc-
tions for further details.
Side of
Cabinet
Figure 13

12.5 Low Voltage Connections

Several combinations of low voltage schemes are pos-
sible, depending on the presence of a heat kit and
whether the heat kit is single-stage or multi-stage,
whether the outdoor section is an air conditioner or heat
pump, and whether the outdoor section is single-stage
or two-stage. The 24V-control voltage connects the air
handler to the room thermostat and condenser. Low
voltage wiring must be copper conductors. A minimum
of 18AWG must be used for installations up to 50' and
16AWG for installations over 50'. Low voltage wiring
must be connected through the top of the cabinet or
either side. See the "Thermostat Wiring" section of
this manual for typical low voltage wiring connections.

12.5.1 Thermostats

Second-stage heat can be accomplished by a multi-
stage heating thermostat or the addition of an outdoor
thermostat as shown in wiring schematics on pages
14 and 15. Follow the thermostat manufacturer's in-
structions for installation.

12.6 Speed Tap Adjustment

ARUF**14** and ARPT**14** air handlers have multi-
speed PSC motors. The color of the wire coming from
the motor to the "COM" terminal on the control board
defines at which speed the motor will operate. Black
wire is high speed, blue wire is medium speed and red
wire is low speed. To change speeds, remove the wire
attached to the "COM" terminal on the control board,
and swap it with the wire (on terminal "M1" or "M2")
with the color that will give the desired speed.
ASPT**14** and ASUF**14** air handlers feature en-
ergy efficient blower motors. The motors run at a con-
stant torque with very low power consumption and are
energized by 24 VAC. Adjust the CFM by changing
the 24 VAC leads to the desired speed tap on the ter-
minal block. The ASPT blower motor speeds are pro-
grammed to deliver adequate airflow at rated external
static pressure and with 60 second off time delay. For
details, refer to the specification sheet applicable to
your model.
NOTE: In some models, not all speed taps are allow-
able for certain electric heat applications. Refer to air
handler Series and Ratings plate for minimum speed.
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