Friedrich KCS12 User manual

Installation and Operation Manual
THE EXPERTS IN ROOM AIR CONDITIONING
Standard Chassis Models Using R-32 Refrigerant
Kuhl ® Series
Room Air Conditioners
Kühl 115-Volt:
230-Volt:
KCS12
KCM24, KCL28, KCL36
Kühl +
Heat Pump
115-Volt: KHS10
92000021_00

2
A. IMPORTANT SAFETY AND GENERAL INFORMATION
A.1 Introduction............................................................................. 3
A.2 • Safety Symbols ..................................................................... 3
A.3 • Safety Warnings ................................................................... 4
A.4.Unpacking Instructions.......................................................... 5
A.5 Importance of a Quality Installation..................................... 6
A.6 Packing List ............................................................................. 7
B. SPECIFICATIONS
B.1 Product Data............................................................................ 8
B.2 Model Identification Guide ..................................................... 8
B.3 Outdoor Use............................................................................. 8
C. INSTALLATION OF THE UNIT
C.1 Pre-Installation Checkpoints................................................. 9
C.2 Tools Required ........................................................................ 9
C.3 Choosing a Location................................................................ 9
C.4 Window Installation .............................................................10
C.5 Thru-the Wall Installation.................................................... 19
C.6 Cord Routing Change ...........................................................26
C.7 Install Filter ...........................................................................28
E. ELECTRICAL
E.1 Electrical Safety Information......................................... 29
J. STARTUP AND OPERATION
J.1 Final Inspection ..................................................................... 30
J.2 Air Flow Selection and Adjustment ....................................30
J.3 Control Panel Operation....................................................... 31
J.4 Remote Control Operation ...................................................45
J.5 Start-up...................................................................................45
L. WIFI
M. TROUBLESHOOTING
M.1. Troubleshooting Tips...................................................... 46
M.2 Diagnostic Codes............................................................. 47
P. Appendixes
P.1 Accessories and Options ................................................ 48
R . INFORMATION FOR THE OWNER
R.1 Room air conditioner unit performance test data sheet....49
R.2 Routine Maintenance............................................................ 49
R.3 Warranty ................................................................................50
Register your Air Conditioner
Model information can be found on the name plate.
Please complete and mail the owner registration card fur-
nished with this product, or register online at www.friedrich.
com.
For your future convenience, record the model information in
Section R, information for the owner.
MODELNUMBER
YS10M10A
SERIALNUMBER
LICY00008
VOLTS 115
60 HZ / 1 PH
VOLTS MIN 108
COOLING
BTH/HR 6500
EER 12.0
AMPS 8.0
HEATING
BTH/HR 6500
EER 10.4
AMPS 7.0
REFRIGERANT
30.1 OZ R410A
XXXXXXXXX
600 PSIG HS
300 PSIG LS
XXXXXXXXXX
XXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
FUSE PROTECTED
CIRCUITS USE 15A
TIME DELAYFUSE
X XX
XXXXX
XXXXXXXXXX
UL
AIR CONDITIONING CO.
SANANTONIO, TEXAS
ASSEMBLED IN MEXICO
MODEL NUMBER
YS10M10A
SERIAL NUMBER
LICY00008
AIR CONDITIONING CO.
SAN ANTONIO, TEXAS
ASSEMBLED IN MEXICO
Model Nameplate Location

3
A.1 Introduction
This booklet contains the installation and operating instructions for your Air Conditioning unit. There are some precautions that should be taken
to ensure proper operation. Improper installation can result in unsatisfactory operation or dangerous conditions.
Read this booklet and any instructions packaged with separate equipment required to make up the system prior to installation. Give this booklet
to the owner and explain its provisions. The owner should retain this booklet for future reference.
A.2 •Safety Symbols
A. IMPORTANT SAFETY AND GENERAL INFORMATION
This symbol indicates that this appliance uses a flammable refrigerant. If the refrigerant is leaked and is exposed to an
external ignition source, there is a risk of fire.
This symbol indicates that the Operation Manual should be read carefully.
This symbol indicates that service personnel should be handling this equipment with reference to the installation manual.
This symbol indicates that information is available such as the Installation and Operation manual, or the Service Manual.
SAFETY IS IMPORTANT
We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety messages.
Indicates a hazard which, if not avoided, can result in severe personal injury or death and damage to product or other
property.
Indicates a hazard which, if not avoided, can result in personal injury and damage to product or other property.
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you
what will happen if the instructions are not followed.
NOTICE
CAUTION
WARNING
All safety messages will follow the safety alert symbol with the word “WARNING” or “CAUTION”. These words mean:
This is a safety Alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others.
Indicates property damage can occur if instructions are not followed.

4
A. IMPORTANT SAFETY AND GENERAL INFORMATION
A.3 •Safety Warnings
WARNING: The manufacturer’s warranty does not cover any damage or defect to the air conditioner caused by the attachment
or use of any components, accessories or devices (other than those authorized by the manufacturer) into, onto or in conjunction with the air
conditioner. You should be aware that the use of unauthorized components, accessories or devices may adversely affect the operation of the
air conditioner and may also endanger life and property. The manufacturer disclaims any responsibility for such loss or injury resulting from
the use of such unauthorized components, accessories or devices.
WARNING: This appliance is not intended for use by persons (Including children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by
a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
WARNING: The maximum altitude for this appliance is 2,000 meters(6,562 feet).
Do not use above 2,000 meters(6,562 feet).
WARNING: Electrical Shock Hazard
Disconnect all power to the unit before starting maintenance. All electrical connections and wiring MUST be installed by a qualified
electrician and conform to the National Code and all local codes which have jurisdiction. Failure to do so can result in property
damage, severe electrical shock or death.
WARNING: Read Installation Manual
Read this manual thoroughly prior to equipment installation or operation. It is the installer’s responsibility to properly apply
and install the equipment. Installation must be in conformance with the NFPA 70-2023 national electric code or current edition,
International Mechanic code 2021 or current edition, and any other local or national codes.
WARNING: Safety First
Do not remove, disable, or bypass this unit’s safety devices. Doing so may cause fire, injuries, or death.
WARNING: This Product uses R-32 Refrigerant
Do not use means to accelerate the defrosting process or to clean, other than those
recommended by the manufacturer.
The appliance shall be stored in a room without continuously operating ignition sources
(for example: open flames, an operating gas appliance or an operating electric heater.
Do not pierce or burn.
Be aware that refrigerants may not contain an odor.
WARNING: Refrigeration System under High pressure
Do not puncture, heat, expose to flame or incinerate. Only certified refrigeration technicians should service this
equipment. R32 systems operate at higher pressures than R22 equipment. Appropriate safe service and handling
practices must be used.
CAUTION: Do Not Operate Equipment During Active Stages Of
Construction
To ensure proper operation, Friedrich requires that all equipment is not operated during active construction phases. This includes active stages
of completing framing, drywalling, spackling, sanding, painting, flooring, and moulding in the equipment’s designated conditioning space. The
use of this equipment during construction could result in premature failure of the components and/or system and is in violation of our standard
warranty guidelines. The operation of newly installed equipment during construction will accelerate the commencement and/or termination of
the warranty period.
WARNING: Keep all air circulation and ventilation openings free from obstruction.
WARNING: The unit should not be in contact with any equipment that will transmit vibration to the unit. Any excessive vibration or
pulsation to the unit could result in damage to the refrigerant tubing.
Refrigerant
Safety Group
A2L

5
A. IMPORTANT SAFETY AND GENERAL INFORMATION
A.4.1 Unpacking Instructions
(Small and Medium Chassis)
STEP 1. Cut all 4 packing straps.
STEP 2. Remove wooden shipping bar dividers.
STEP 3. Remove top foam pads.
STEP 4. Slowly remove outer box, careful not to loosen decorative front.
STEP 5. Slide the front forward.
STEP 6. Carefully lift decorative front box from foam front support.
STEP 7. Remove decorative front and set safely aside.
STEP 1
STEP 2
STEP 3
STEP 4
STEP 7
STEP 6
STEP 5
STRAPS x4
STEP 7
A.4.2 Unpacking Instructions
(Large Chassis)
Figure A.4.1 Figure A.4.2
STEP 1
STRAPS x4
STEP 1. Cut all 4 packing straps.
STEP 2. Slowly remove outer box, careful not to loosen decorative front.
STEP 3. Remove pad top.
STEP 4. Remove top board assembly.
STEP 5 Remove spacer.
STEP 6. Remove shipping top.
STEP 7. Remove Shipping Corners
STEP 8. Remove Shell liner.
STEP 9. Remove decorative front, vent foam support blocks,and set safely
aside.
STEP 2
STEP 3
STEP 4
STEP 5
STEP 6
STEP 7
STEP 8
STEP 9

6
Upon receiving the unit, inspect it for any damage from shipment. Claims for damage, either shipping or concealed, should be filed immediately
with the shipping company. IMPORTANT: Check the unit model number, Cooling size, electrical characteristics, and accessories to determine if
they are correct.
WARNING:Check the unit power cord and make sure the cord is protected from wear, corrosion, excessive pressure, vibration,
sharp edges, or any other adverse environmental effects. It is recommended that the cord is checked for any potential damage when filter
maintenance is performed. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
WARNING: If the unit appears damaged,or if a refrigerant leak is suspected, do not
install. Contact a licenced repair person to perform a leak check on the unit.
WARNING:Under no circumstances shall potential sources of ignition be used in the searching
for or detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not be used. The following leak detection
methods are deemed acceptable for all refrigerant systems. Electronic leak detectors may be used to detect refrigerant leaks but, in
the case of FLAMMABLE REFRIGERANTS, the sensitivity may not be adequate, or may need re-calibration. (Detection equipment shall
be calibrated in a refrigerant-free area.) Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used.
Leak detection equipment shall be set at a percentage of the LFL.
WARNING:Service of this product (aside from filter
maintenance) shall only be performed by trained service personnel. This
includes:
Opening of any ventilated Any tubing or refrigerant circuit work
Opening of any sealed components
Enclosures beyond the hinged door for filter cleaning
Scan this QR code to be linked to the Friedrich professional support page
where you can locate the Service Manual.
A. IMPORTANT SAFETY AND GENERAL INFORMATION
A.5 Importance of a Quality Installation
Optimal system performance and longevity depend upon a quality and proper installation. Failure to properly install this unit could result in
undesirable operation and subsequent faults and potential failures.
Carefully follow all guidelines listed in the manual and industry best practices. Conform to all local code requirements. Contact your local
technical representative with any questions or concerns.

7
Figure A.6 (Packing List)
Window Mount
Installation Hardware
ITEM
NO
DESCRIPTION QTY.
8
9
10
11
WINGBOARD MOUNTING PARTS
WINGBOARD (MASONITE)
“J” TYPE SPEED NUT
WINGBOARD CLIP (SPRING STEEL)
SCREW, #8 x ½″ PHILLIPS TRUSS HD.
1
4
4
4
12
13
WINDOW SEALING
WINDOW SEAL GASKET (DARK FOAM)
CHASSIS SEAL GASKET (LIGHT FOAM)
1
1
1
2
3
4
SHELL MOUNTING PARTS
SUPPORT BRACKET
SCREW, 10-24 x 1″ HEX HEAD
10-24 FLAT NUT
SCREW, SHEET METAL #12 x 2″
2
4
4
7
5
6
7
WINGBOARD ANGLE MOUNTING
BRACKET, TOP
BRACKET, SIDE
SCREW, SHEET METAL #8 x 3/8″
1
2
2
Thru-the-Wall
Installation Hardware
ITEM
NO
DESCRIPTION QTY.
4
14
MOUNTING PARTS
SCREW, SHEET METAL #12A x 2″
CHASSIS SEAL GASKET (LIGHT FOAM)
7
1
NOTE: Kühl + models do not come with window mounting
components. When mounting a cooling and heating model, a
window installation kit must be purchased separately.
A. IMPORTANT SAFETY AND GENERAL INFORMATION
16
1
23
4
56
7
89
10
11
12 1414
15
13
Additional Parts
ITEM
NO
DESCRIPTION QTY.
15
16
MOUNTING PARTS
R1 Insulation Panel
Remote Control
Registration Card
1
1
1
A.6 Packing List

8
B. SPECIFICATIONS
B.1 Product Data
B.2 Model Identification Guide
The new Kühl gives you a variety of options for control, programming, and
scheduling including wireless capabilities.
Wireless Programming and Control:
Friedrich Connect allows you to conveniently control, program, and monitor your air
conditioning unit remotely from a smartphone or computer.
Pre-Programmed Timer Options:
Your unit’s digital control comes equipped with a 24-hour timer.
24-Hour Timer
The 24-hour timer allows you to set 2 temperature changes at pre-set times or a
unit control panel.
Customizable Programming Options:
Customizable timers, with up to four temperature adjustments per day, can be set
using Friedrich Connect for one or multiple units.
See www.friedrich.com for complete details on Friedrich Connect.
B.3 Outdoor Use
The only section of this air conditioner acceptable for outdoor use
is designated by the dotted area in the image below. To ensure the
protection of parts not acceptable for outdoor use please follow the
installation instructions as shown in this document. Please note that
junction and electrical boxes are not acceptable for outdoor use.
K HS10 B 1 0 A - A
Model Type:
K - Kühl
Function:
C- Cool Only
H - Heat Pump
Approximate
Cooling
BTU/HR
Major Model
Revision
Character
Voltage
1- 115 Volts
Application:
Q - Q
S - Small
M - Medium
L - Large
3- 230 Volts
Heat Strip
0- Straight Cool & Heat Pump
Marketing Suffix
Letter indicates
modification to
existing model
Engineering Rev
Letter indicates an
engineering
modification to an
existing model

9
C. INSTALLATION OF THE UNIT
C.1 Pre-Installation Checkpoints
Before attempting any installation, carefully consider the
following points:
• Clearances and provision for servicing. Install this unit
in accordance with local and national standards. Any
and all work must be done by authorized personnel.
• IMPORTANT: Before you begin the actual installation
of your air conditioner, check your local electrical codes
and the information below. Your air conditioner must be
connected to a power source with the same alternating
current (A.C.) voltage and amperage as marked on the
name plate located on the chassis. Only A.C. can be used.
Direct Current (D.C.) cannot be used.
• CIRCUIT PROTECTION – Use on single outlet circuit only.
An overloaded circuit will invariably cause malfunction or
failure of an air conditioner; therefore, it is necessary that
the electrical protection is adequate. Due to momentary
high current demand when the air conditioner starts,
use a “TIME DELAY” fuse or a HACR type circuit breaker.
Consult your dealer or power company if in doubt.
• Refer to the electrical name plate located on the air
conditioner chassis (see Table E.1 to determine the
correct fuse or circuit breaker amperage for your model.
• The power cord has a plug with a grounding prong and a
matching receptacle is required.
C.2 Tools Required
1. Power Drill 10. Flat Head Screw Driver
2. 5/32” Drill Bit 11. Measuring Tape
3. Gloves 12. Utility Knife
4. Carpenters Level
5. 5/16” Wrench
6. 1/4” Wrench
7. #2 Phillips Screw
Driver
8. Putty Knife or (wood
stir stick)
9. 1/4” Nut Driver
C.3. Choosing a Location
Installation Clearances
Improper installation of the Air Conditioner can cause poor perfor-
mance and premature wear of the unit.
Ensure that the KUHL unit is installed with proper clearances as
described below.
Ensure no obstructions or enclosures are within clearances limits to
allow for proper airflow.
Ensure no open flames, or surfaces that will exceed 1200 degrees
fahrenheit are within clearances limits.
Clearances
Top and Bottom of Unit - One (1) foot
Sides of Unit - One (1) foot
Front of Unit - Three (3) feet
Rear of Unit - Three (3) feet
1
2
3
4
65
87
5/16
5/16
1/4
1/4
Figure C.2 (Tools)
WARNING
Electrical Shock Hazard
Make sure your electrical receptacle has the
same configuration as your air conditioner’s
plug. If different, consult a Licensed Electrician.
Do not use plug adapters.
Do not use an extension cord.
Do not remove ground prong.
Always plug into a grounded 3 prong outlet.
Failure to follow these instructions can result in
death, fire, or electrical shock.
WARNING
Refigeration System
Under High Pressure
Do not puncture, heat, expose to flame or
incinerate.
Only certified refrigeration technicians should
service this equipment.
R410A and R32 systems operate at higher
pressures than R22 equipment.
Appropriate safe service and handling
practices must be used.
Only use gauge sets designed for use with
R410A or R32.
Do not use standard R22 gauge sets..
CAUTION
Moving Parts Hazard
Do not operate unit out of sleeve
or with front grille removed.
Do not place hands in blower
or fan blade areas.
Failure to do so can result
in serious injury
CAUTION
Excessive Weight Hazard
Use two or more people when
installing your air conditioner.
Failure to do so can result in
back or other injury.

10
C. INSTALLATION OF THE UNIT
WARNING
Fire Hazard
A2L refrigerant is classified as mildly
flammable. Do not install unit next open flame
sources, or surfaces that will exceed
1200 degrees fahrenheit.
C.4 Window Installation
NOTE: Hardware used during the installation is illustrated in section A. 6
STEP 1. Remove the chassis EntryGard™retainer by removing the far right
screw (see Figure C.4.1). Save this screw to reattach the chassis
retainer after installation (Step 12). Also, remove and discard the two
retainer screws and washer located at the rear of the unit (see Figure
C.4.1).
CAUTION
Handle Use
Use handle on both sides to
pull unit from sleeve.
Do not push, pull, or lift from
center of support.
Use Handle
Locations
(both sides)
STEP 2. Hold the cabinet stationary. Then, use the hand grips on both ends of
the control unit support bracket to pull the chassis out of the cabinet
(see Figure C.4.2).
.
RETAINER SCREWS
AND WASHERS
FAR RIGHT
SCREW
ENTR
YGARD
RETAINER
WIRE
Figure C.4.1
STEP 3. Anchor the brackets (Item 6) by engaging the tabs of the lower sill plate
(C.4.4 Detail 1) with the loops of the side angle. Engage the tabs of the
top angle (Item 5) with the top loops of the side angle (C.4.4 Detail 2).
Install two (2) screws (Item 7) to secure the top angle tabs and the side
angle to cabinet (see Figure C.4.4 Detail 2).
NOTE: It may be helpful to start the screw before fully engaging the tabs so that
the taper hole aligns with the screw.
Figure C.4.2
CONTROL UNIT
SUPPORT BRACKET
RETAINER SCREWS
AND WASHERS

11
C. INSTALLATION OF THE UNIT
C.4 Window Installation (Continued)
STEP 4. Check the window sill and frame to be sure they are in good
condition and functioning.
STEP 5. CABINET MOUNTING – Raise the lower window 1/4″ more than the
height of the cabinet. Carefully slide the cabinet through the opening
until the lower sill plate channel rests behind the window sill and the top
angle rests against the window (see Figure C.4.5). Center the cabinet
within the opening. Drill three (3) 5/32″ diameter pilot holes into window
sill using the holes in the cabinet sill plate as a guide. Install three (3)
#12 x 2″ long screws (Item 4) (see Figure C.4.5).
STEP 6. OUTSIDE SUPPORT MOUNTING – Refer to Figures C.4.6 and
C.4.7 Assemble the support brackets (Item 1) to the bottom
of the cabinet with four (4) 10-24 1″ long screws (Item 2) and
four 10-24 flat nuts (Item 3). Adjust the support brackets, using
a combination of the elongated holes of the bracket and different
hole locations in the cabinet, to bring the bottom support bracket
pads in contact with the wall. A 1″ x 4″ or 2″ x 4″ SPACER SHOULD
BE USED BETWEEN THE WALL AND SUPPORT THE BRACKETS
WHEN INSTALLED ON ALUMINUM OR VINYL SIDING. Drill 5/32″
diameter pilot holes and secure the brackets to the wall with two
(2) 12A x 2″ long screws (Item 4).
NOTE: DO NOT LEVEL the cabinet from front-to-back. Make sure there
is approximately a 3/8″ to 1/2″ slope (1/8to 1/4bubble on level)
toward the outside of the house.
Adjust the support brackets to provide an inside-to-outside slope for excess
condensation drainage (refer to Standard Window Installation, Figures C.4.6
through C.4.8). Tighten all screws.
Figure C.4.3
Alternate support method A: If you have a deep window sill which prevents you
from mounting the brackets as shown in Figure C.4.8, try the following: Using the
elongated holes and different hole locations in the cabinet, set the placement of
the bracket to support the unit’s weight (Figure C.4.9). Tighten all screws.
Alternate support method B: If the window ledge gap is narrow, try the following.
Bend the bracket end tab at. Cut the bracket in two (2) places as shown in
Figure C.4.10. Bend the short piece so it will be vertical when installed. Adjust the
placement as required. Tighten all screws.
STEP 8. Measure and cut the wingboard panels (t with about 1/8″ clearance)
from the supplied Masonite (Item 8) to t the space between the
window side channels and cabinet (Figure C.4.11). Make sure you
include the depth of the window channel.
NOTE: A good method to cut the wingboard panel is to score both sides with a
utility knife and then snap it.
NOTICE
For YOUR security and safety, YOU must
provide a means of preventing the upper
part of the window from opening.
TOP VIEW OF UNIT REMOVE AND DISCARD
SCREWS
BACK
LEFT SIDE RIGHT SIDE
REMOVE AND SAVE
SCREW FOR
RE-INSTALLATION
EVAPORATOR COIL
FAN MOTOR
COMPRESSOR
CONDENSOR COIL
STEP 9. To assemble the wingboard panels, push on the “J” type speed nuts
(Item 9) and spring steel clips (Item 10) (see Figure C.4.12). Secure
each panel with two (2) screws (Item 11). (see Figure C.4.13)
NOTE: THe spring steel clips will engage with the runners of the window jam.

12
C. INSTALLATION OF THE UNIT
C.4 Window Installation (Continued)
Figure C.4.4
Figure C.4.5
CABINET TOP ANGLE (ITEM 5)
#8 x 3/8″ LONG SCREW
(ITEM 7) 2 REQUIRED
TAB
SIDE ANGLE
(ITEM 6)
2 REQUIRED
SILL PLATE
TAB
Detail 1
LOOP
TAB
Detail 2
CENTER
CABINET
IN WINDOW
SIDE TO SIDE
DRILL (3) 5/32″ DIA.
PILOT HOLES AND
INSTALL (3) #12 x 2″
LONG SCREWS
(ITEM 4)
WINDOW SILL
LOCATE SILL PLATE GUIDE CHANNEL
JUST BACK OF WINDOW SILL
SIDE ANGLE
(ITEM 6)
PULL WINDOW
SASH DOWN
BEHIND TOP
ANGLE
TOP ANGLE
(ITEM 5)

13
C. INSTALLATION OF THE UNIT
C.4 Window Installation (Continued)
Figure C.4.6
Figure C.4.7
3/8″ SLOPE DOWN
#10-24 x 1″ HEX HEAD
SCREW (ITEM 2)
SUPPORT
BRACKET
(ITEM 1)
10-24 x FLAT WELD
NUT (ITEM 3)
SUPPORT BRACKET
(ITEM 1)
#12 x 2″ SCREW
(ITEM 4)
SPACER SHOULD BE USED BETWEEN
WALL AND BRACKET WHEN INSTALLED
ON ALUMINUM OR VINYL SIDING.
3/8″ SLOPE DOWN
CONDENSER
AIR OUTLET
CONDENSER
AIR INLETS
#10-24 SCREW
#10-24 FLAT WELD NUT
#12 x 2″ SHEET METAL
SCREW (ITEM 4)
SPACER SHOULD BE USED BETWEEN
WALL AND BRACKET WHEN INSTALLED
ON ALUMINUM OR VINYL SIDING.

14
C. INSTALLATION OF THE UNIT
C.4 Window Installation (Continued)
Figure C.4.8
Figure C.4.9
FOR LEDGES
3/8″ SLOPE DOWN
CONDENSER
AIR INLETS
#10-24 SCREW
#10-24 FLAT WELD NUT
#12 x 2″ SHEET METAL
SCREW (ITEM 4)
STONE LEDGE SPACER
ALTERNATE METHOD A
3/8″ SLOPE DOWN
#10-24 SCREW
STRAIGHTEN TAB TO LAY FLAT
ALONG THE BOTTOM RAIL OF
THE SHELL
#10-24 FLAT WELD NUT
SECURE THE LONGEST SIDE OF
THE BRACKET TO THE SHELL
ADJUST IN OR OUT TO REST
ON THE LEDGE
STONE LEDGE

15
C. INSTALLATION OF THE UNIT
C.4 Window Installation (Continued)
Figure C.4.10
Figure C.4.11
ALTERNATE METHOD B
3/8″ SLOPE DOWN
#10-24 SCREW
DIMENSION “A”
CUT TO FIT DIMENSION “A”
AND BEND DOWN TO FORM
A VERTICAL LEG.
CUT HERE
#10-24 FLAT WELD NUT
STONE LEDGE
OUTSIDE WALL
DISCARD SHAD-
ED AREA
MEASURE DISTANCE “B” TO INSIDE
OF THE CHANNEL ON EACH SIDE.
CUT HERE AND DISCARD
CENTER WASTE MATERIAL
WINGBOARD
SUBTRACT 1/8″ FROM DIMENSION “B” AND
MEASURE FROM THE EDGE OF WINGBOARD
(ITEM 8), MARK, SCORE AND CUT WITH
APPROPRIATE CUTTING TOOL.
B
B
BB

16
C. INSTALLATION OF THE UNIT
C.4 Window Installation (Continued)
WARNING
Falling Object Hazard
Not following Installation Instructions
for mounting your air conditioner can
result in property damage, injury, or
death.
CAUTION
Cut/Sever
Although great care has been
taken to minimize sharp edges
in the construction of your unit,
use gloves or other hand
protection when handling unit
Failure to do so can result in minor
to moderate personal injury.
STEP 10. INSTALL THE R1 INSULATION PANEL – To minimize air leaks and
ensure optimal insulation, install the included R1 insulation panel (14
in parts list) (see Figure C.4.14).
First, measure the width from one side of the cabinet/ sleeve (covering
the side angles where the wingboard was just secured) to the end of the
wingboard (see Figure C.4.14.1).
Next, cut the R1 insulation panel to the measured width and remove
protective cover, exposing adhesive on back panel (see Figure
C.4.14.2).
Last, evenly apply the adhesive side of the panel across the entire
height and width from side angle to wingboard panel (see Figure
C.4.14.3).
Repeat the steps above for the other wingboard panel.
STEP 11. INSTALL THE WINDOW SEALING GASKETS – Measure and cut
the dark foam window seal gasket (Item 12) and install it between
the upper glass panel and the top part of the window sash (see
Figure C.4.14.1).
STEP 12. Carefully team lift the chassis and set it into the cabinet. Slide the
chassis stopping approximately 3″ from full insertion. Insert the
chassis seal gasket (Item 13) one inch deep between the chassis and
the cabinet (see Figure C.4.15). A paint stir stick or ruler might be
helpful here. Begin inserting the gasket at either bottom corner and go
up the side, across the top, and down the opposite side. Then push
the chassis all the way into the cabinet.
NOTE: If the chassis seal gasket is not installed or installed improperly, the
operation of the unit will be negatively affected. Operational noise and
outside noise will also be amplied.
STEP 13. Reattach the EntryGard™chassis and EntryGard™retainer wire with
the same screw retained in Step 1 (see Figure C.4.1).
Figure C.4.12
“J” TYPE SPEED NUT
(ITEM #9) 2 REQUIRED
SPRING STEEL CLIP
(ITEM 10) 2 REQUIRED
ROTATED 90°
CUT EDGE
CUT
WINGBOARD
PANEL
CENTER THE HOLE IN THE
SPEED NUT OVER THE SLOT
IN THE WINGBOARD PANEL
SLIDE CLIP OVER CUT EDGE
OF WINGBOARD PANEL
3″
3″

17
C. INSTALLATION OF THE UNIT
C.4 Window Installation (Continued)
Figure C.4.13
AA
WINDOW JAM
TOP OF CABINET
PLACE WINGBOARD PANEL IN WINDOW JAM
TO COMPRESS THE SPRINGS INSIDE THE
RUNNERS, AND SWING THE WINGBOARD
PANELS INTO PLACE AS INDICATED BY THE
DASHED LINES.
CLIP (ITEM 10)
SECTION A-A
SECURE THE SIDE WINGBOARD PANELS TO
THE SIDE ANGLES WITH FOUR (4) #8 x 1/2" LONG
SCREWS (ITEM 11), TWO ON EACH SIDE.
2
3
Figure C.4.14
INSERT FOAM WINDOW
SEAL GASKET (ITEM 12)
1

18
C. INSTALLATION OF THE UNIT
C.4 Window Installation (Continued)
OPTIONAL: The factory assembles the supply cord so that it exits the left side
of the unit at the bottom. At the consumer’s discretion, pull the supply
cord taut through the loops (refer to Cord Routing Change, Section
C.6) and route the cord down.
STEP 14. To attach and prevent damage to the front grille, align the cord notch
over the cord and center the fresh air lever, then align and tighten the
four (4) captive screws as indicated by the arrows in Figure C.4.16.
(prefered tool is a 1/4” nut driver) Before closing the front panel, be
sure the lter is in place. Make sure curtains do not block the side
air intakes.
STEP 15. Refer to the Control Panel Operation section for instructions.
You are now to control the comfort level of the room.
Figure C.4.15
POWER CORD CLIP NOTE: WHEN INSTALLING THE CHASSIS
SEAL GASKET, BEGIN AT EITHER BOTTOM
CORNER AND GO UP THE SIDE & ACROSS
THE TOP & DOWN THE OPPOSITE SIDE.
CHASSIS SEAL GASKET (ITEM 13)
B
Figure C.4.16
use hand
tools do not
overtighten

19
WARNING
Fire Hazard
A2L refrigerant is classified as mildly
flammable. Do not install unit next open flame
sources, or surfaces that will exceed
1200 degrees fahrenheit.
C.5 Thru-the Wall Installation
NOTE: Hardware used during the installation is illustrated in section A. 6
STEP 1. Remove the chassis EntryGard™retainer by removing the far right
screw (see Figure C.5.1). Save this screw to reattach the chassis
retainer after installation (Step 12). Also, remove and discard the two
retainer screws and washer located at the rear of the unit (see Figure
C.5.1).
CAUTION
Handle Use
Use handle on both sides to
pull unit from sleeve.
Do not push, pull, or lift from
center of support.
Use Handle
Locations
(both sides)
STEP 2. Hold the cabinet stationary. Then, use the hand grips on both ends of
the control unit support bracket to pull the chassis out of the cabinet
(see Figure C.5.2).
RETAINER SCREWS
AND WASHERS
FAR RIGHT
SCREW
ENTR
YGARD
RETAINER
WIRE
Figure C.5.1
Figure C.5.2
CONTROL UNIT
SUPPORT BRACKET
RETAINER SCREWS
AND WASHERS
C. INSTALLATION OF THE UNIT

20
Figure C.5.3
TOP VIEW OF UNIT REMOVE AND DISCARD
SCREWS
BACK
LEFT SIDE RIGHT SIDE
REMOVE AND SAVE
SCREW FOR
RE-INSTALLATION
EVAPORATOR COIL
FAN MOTOR
COMPRESSOR
CONDENSOR COIL
C. INSTALLATION OF THE UNIT
C.5 Thru-the Wall Installation (Cont.)