Thru-the-Wall
Room Air Conditioner
with optional Electric Heat
Installation Instructions
and Owner’s Manual
This manual must be left with the owner
of the equipment.
Contents
IMPORTANT NOTE TO THE OWNER.......................... 2
IMPORTANT NOTE TO THE SERVICER ..................... 2
Unit Features ............................................................... 2
Transportation Damage .............................................. 2
Unpacking The Unit ..................................................... 2
Parts Supplied ............................................................. 2
UnitAccessories.......................................................... 3
Operating Instructions ................................................ 3
Installation Instructions .............................................. 3
Wiring ........................................................................... 5
Unit Operation ............................................................. 6
Preventative Maintenance........................................... 7
Normal Operating Sounds and Conditions ............... 8
Obtaining Service ........................................................ 8
®
is a trademark of Maytag Corporation
and is used under license to Goodman Company, L.P.
All rights reserved.
ATTENTION INSTALLING PERSONNEL
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
As a professional installer you have an obligation to know the product better than the customer. This
includes all safety precautions and related items.
Prior to actual installation, thoroughly familiarize yourself with this Instruction Manual. Pay special
attention to all safety warnings. Often during installation or repair it is possible to place yourself in a
position which is more hazardous than when the unit is in operation.
Remember, it is your responsibility to install the product safely and to know it well enough to be able to
instruct a customer in its safe use.
Safety is a matter of common sense...a matter of thinking before acting. Most dealers have a list of
specific good safety practices...follow them.
The precautions listed in this Installation Manual are intended as supplemental to existing practices.
However, if there is a direct conflict between existing practices and the content of this manual, the
precautions listed here take precedence.
2001-2004 Goodman Company, L.P.
Effective: August 2004
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Unit Accessories
Thisunitisdesignedforthrough-the-wallinstallationinnew
or existing buildings. To complete the installation in an
existing wall sleeve, a TWKG rear louver panel kit, a
TWEAK or TWFAK adapter kit is required.
If the sleeve is a GE wall sleeve, use the TWKG rear louver
panel kit. If the sleeve is an Emerson wall sleeve, use the
TWEAK adapter kit, If the sleeve is a Fedders or Freidrich
wall sleeve, use the TWFAK adapter kit.
The chassis and wall sleeve are shipped separate.
Operating Instructions
Check the data specification plate and ensure the proper
voltage and current rating for the type of power plug on the
unit is available. DO NOT REMOVE THE GROUNDING
PRONG FROM THE POWER CORD. See Figure 3 for the
typesofacceptableplugs. Donotuseanextensioncordfor
the installation of this product. Refer to the data specifica-
tion plate for electrical requirements.
FOAM
Figure 4
SLEEVE INSTALLATION
In order for condensate water to drain properly inside the
unit, the sleeve must be installed properly:
•
•
Level from right to left.
A slight downward pitch from the indoor side to the
outdoor side as shown in Figure 5.
Refer to the Installation Instructions supplied with the wall
sleeve for a complete description of the installation proce-
dure.
110V
15 amp
230V
15 amp
230V
20 amp
Level
Inside
Outside
Figure 3
1/4 Bubble
Tilt To
Outside
LCDI or AFCI Power Cords
Wall
Sleeve
Underwriters Laboratories (UL) and the National Electric
Code (NEC) now require power cords that sense current
leakageandcanopentheelectricalcircuittotheunit. Inthe
event, the unit does not operate, check the reset button
located on or near the head of the power cord as part of the
Outside
Wall
normal troubleshooting procedure.
WARNING
Figure 5
To prevent property damage, personal
injury or death, do not remove grounding
prong from plug. Follow all operating
instructions.
REAR LOUVER PANEL
ATWKGrearlouverpanelkitisrequiredforunitinstallation
into an existing GE 26” wall sleeve. A TWEAK or TWFAK
adapterkitisrequiredforunitinstallationintoanexisting27”
wallsleeve. Therearlouverpaneldirectsairflowforproper
unitoperationandprotectstheoutdoorcoil. Thepanelmust
beinstalledbeforeinstallingthechassis. Thesekitsarenot
supplied with the unit. Refer to the Installation Instructions
supplied with the rear louver panel kit for a complete
description of the installation procedure.
Installation Instructions
To ensure that the unit operates safely and efficiently, it
must be installed, operated, and maintained according to
these installation and operating instructions and all local
codes and ordinances, or, in their absence, with the latest
edition of the National Electrical Code. The proper instal-
lation of this unit is described in the following sections.
Following the steps in the order presented should ensure
proper installation.
NOTE: If using a GE wall sleeve, ensure that the rear
enclosure panel is removed before installing the TWKG
panel.
NOTE: Attach the supplied 1/2” x 1” x 14” foam prior to
installation of unit. Remove adhesive backing strip and
place the foam on unit as shown in Figure 4.
3
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CHASSIS INSTALLATION
1. Inspect the ground wire (Figure 6) on the unit and
ensure it is attached to the left side panel. If not, attach
the wire to the panel.
2. Remove the mounting screw from the left hand side of
theexistingsleeve(Figure6). Placethescrewthrough
the eyelet on the unattached end of the ground wire of
the unit and reinsert into its mounting hole.
Ground
Wire
Clip
Screw
Figure 8
Mounting
Screw
FRONT PANEL INSTALLATION
Discharge Air Grille
Airflow Direction Change - Optional
Figure 6
If you wish to change the direction of airflow from up to
down, remove the four screws holding the Discharge Air
Grilleinplace(Figure9). Dropoutthegrilleandrotate180°.
Ensure the notches on the grille face up. Replace the grille
and secure in place with the removed screws.
3. Install the 1/2” x 1/2” supplied gasket foam around the
top and two sides of the chassis (Figure 7).
Foam
Screws
(4 places typ.)
Discharge Air
Grille
Figure 7
4. Carefully slide the chassis into the sleeve. Ensure that
the ground wire is not pinched or in the path of the
condenser fan.
5. Fasten the supplied clips to the exposed sides of the
unit using the two #8 x 3/8” blunt sheet metal screws
provided (Figure 8).
Figure 9
4
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1. Remove the grille and filter from the front panel (Figure
10). Doing one side at a time, press the tab on the front
panel (Figure 10) with one hand while lifting the grille
with the other.
IMPORTANT NOTES:
1. The unit is equipped with a rubber-grommet-mounted
compressor. These grommets are factory set and
require no adjustment.
2. Obstruction to air flow must be checked and removed.
Check the indoor and outdoor grilles for obstructions.
The unit must be located where curtains, furniture,
trees, or other objects do not block air flow to and from
the unit. If air is obstructed and/or deflected back into
the unit, the air conditioner’s compressor may cycle on
and off rapidly. This could cause damage to the
compressor.
Wiring
Beforewiringtheunit,pleasereviewthefollowingwarnings
and cautions.
Figure 10
WARNING
2. Using the four washer head sheet metal screws pro-
vided, mount the front panel to the chassis through the
front panel mounting holes (Figure 11).
Toavoidpropertydamage, personalinjury
or death due to electrical shock, do not
service this unit without first shutting off
power to the unit from the circuit breaker
and/or removing the unit cord set plug
from the wall outlet.
Mounting
Holes
Mounting
Holes
WARNING
To avoid the risk of property damage,
personal injury or electrical shock, do not
use an extension cord with this unit.
Front
Panel
Chassis
WARNING
To avoid the risk of fire, property damage,
or personal injury, use only copper
conductors.
Mounting
Holes
Figure 11
WARNING
3. Reattach the filter and front grille. Place the supplied
knobs onto the proper stem (Figure 12).
To avoid the risk of personal injury, wiring
to the unit must be properly polarized and
grounded.
Knobs
Figure 12
5
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WARNING
OFF
OFF
Thisairconditionerisnotmeanttoprovide
unattended cooling or life support for
persons or animals who are unable to
react to the failure of this product.
LOW
HEAT
FAN
ONLY
HIGH
COOL
FAN
ONLY
HIGH
HEAT
LOW
COOL
LOW
COOL
MED
COOL
Thefailureofanunattendedairconditioner
may result in extreme heat in the
conditioned space causing overheating or
death of persons or animals. Take proper
precautionstoavoidunattendedoperation.
HIGH
COOL
HIGH COOL
This setting provides the most cooling output at the highest
efficiency possible. In this mode the fan runs on high and
the compressor cycles on and off.
VOLTAGE MEASUREMENTS
OFF
Before connecting the unit, measure the supply voltage.
Voltagemustfallwithinthevoltageutilizationrangegivenin
Table 1.
HIGH
COOL
FAN
ONLY
Operating Voltage
Unit Voltage
Voltage Utilization Range
LOW
MED
COOL
COOL
Minimum
197
Maximum
253
Rating
230/208
115
103
126
MEDIUM COOL
This setting provides quieter operation than High Cool. In
this mode the fan runs at medium speed and the compres-
sor cycles on and off.
Table 1
Operating Voltage
OFF
OFF
Unit Operation
LOW
HEAT
FAN
ONLY
Two rotary knobs (Figure 10) control temperature and
operational modes. They are located to the top left of the
cabinet front.
HIGH
COOL
FAN
ONLY
HIGH
HEAT
LOW
COOL
MED
COOL
LOW
COOL
HIGH
THERMOSTAT SETTING
COOL
LOW COOL
This setting dehumidifies the air and provides the quietest
fanoperation. Inthismodethefanrunsatthelowestspeed
and the compressor cycles on and off.
OFF
The thermostat controls the room temperature by turning
eitherthecompressororelectricheateronandoffwhilethe
fan is running. Turn the thermostat control clockwise to
provide a cooler room temperature; turn it counterclock-
wise to provide a warmer one.
LOW
HEAT
FAN
ONLY
HIGH
HEAT
LOW
COOL
HIGH
NOTE: If the fan cycle switch (see Additional Control
Inputs)isintheCYCLEmode,boththecompressorandfan
will cycle on and off during the cooling modes.
COOL
HIGH HEAT
Onhighheat, thefanrunsatitshighestspeed. Inthismode
the electric heater cycles on and off by thermostat.
6
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Preventative Maintenance
WARNING
OFF
LOW
HEAT
FAN
ONLY
To prevent personal injury or death due to
electricalshock, unplugtheunitatthewall
outlet or turn off power at the fuse box or
circuit breaker before servicing the unit.
HIGH
HEAT
LOW
COOL
HIGH
COOL
INTAKE AIR FILTER
The intake air filter should be cleaned when it is dirty or at
least once a month. The intake air filter is constructed of
durablepolypropylene.
LOW HEAT
On low heat, the fan runs at its lowest speed and provides
the quietest fan operation. In this mode the electric heater
cycles on and off by thermostat.
The following procedure is used to remove the intake filter:
OFF
OFF
LOW
HEAT
FAN
ONLY
HIGH
FAN
COOL
ONLY
HIGH
HEAT
LOW
COOL
LOW
COOL
MED
COOL
Front Grille
Front Panel
HIGH
COOL
FAN ONLY
Tabs
Intake Air Filter
This setting circulates air. If the exhaust air option is used,
this setting will exhaust stale indoor air. In this mode, the
fan runs continuously at high speed without compressor
operation.
Figure 14
1. Remove the grille by pressing the tabs one at a time on
thefrontpanel(Figure10)withonehandwhileliftingthe
grille with the other.
ADDITIONAL CONTROL INPUTS
2. Remove intake air filter (Figure 14) from front panel.
3. Clean filter with a vacuum or running water. If using
water, please be sure that the filter is not excessively
wet when replaced.
NOTE: Not available on all models.
Fan Cycle Switch
4. Reverse this procedure to reinstall the filter.
The fan cycle switch is located behind the plastic front
assemblyunderneaththecontrolknob(Figure13). Thefan
cycle switch sets the operational mode of the fan. In the
CONTINUOUSposition,thefanwillruncontinuouslywhen-
ever the unit is in the heat or cool mode. In the CYCLE
position, the fan will cycle on and off with the compressor
when the unit is in the cool mode. This switch can only be
set by a servicer.
COMPRESSOR
The compressor is hermetically sealed, permanently lubri-
cated and requires no additional oiling.
FRONT PANEL AND GRILLE
The front panel and grille can be cleaned with a mild soap
ordetergent. Donotusehydrocarbon-basedcleaners(e.g.
acetone, benzene, naphtha, gasoline, etc.) to clean the
front panel or grille. Use care when cleaning the control
area. Do not use an excessively wet cleaning cloth.
Fan Cycle
Switch
Figure 13
7
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SCHEDULED MAINTENANCE
Normal Operating Sounds and
Conditions
Toachievecontinuingtopperformanceandhighefficiency,
a regular cleaning/inspection schedule must be estab-
lished. Maintaining this schedule can be accomplished by
either a local maintenance staff or an authorized servicer
and must follow the instructions described in this manual.
POPPING OR GURGLING SOUNDS
This sound is the refrigerant traveling through the lines.
This is a normal sound which may be heard for a few
seconds after the unit shuts off.
• If the unit is operated in a dusty climate, dust may
collect in the basepan and clog the condenser coil. It is
advisable to remove the unit from the sleeve and
thoroughly clean the basepan and condenser coil on a
periodic basis.
WATER TRICKLING SOUNDS
This sound is produced by the water as it is picked up and
run over the coils. This procedure improves the efficiency
of the unit and helps with water removal.
• If the unit is installed ocean side or in a corrosive
atmosphere, its life may be greatly reduced by the
corrosive environment. Under these conditions, the
unitshouldberemovedfromthesleeveandcompletely
cleaned once a year. At that time any scratches or
blisters on the painted surfaces should be sanded and
repainted.
WATER DRIPPING
Water will collect in the basepan during high humidity days.
STARTING DELAY
You may notice a short delay in the startup if you try to
restarttheunittoosoonafterturningitofforifyouadjustthe
thermostat right after the compressor has shut off. This
delay protects the compressor.
Obtaining Service
In the unlikely event this unit requires repair or servicing
beyond what is covered in this manual, contact an autho-
rized service organization.
To obtain an authorized servicer, contact your sales repre-
sentative or agency.
2001-2004 Goodman Company, L.P.
Effective: August 2004
Part No. 20350002
Printed in USA
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