Friedrich Q Series Guide

1 PB
Service/ Parts Manual
Room Air Conditioners
Q Chassis Models
Kühl KCQ06A10A, KCQ08A10A, KCQ10A10A
115-Volt:
Kühl +
Electric Heat
115-Volt:
93001404_00
KEQ08A11A

2 PB
TABLE OF CONTENTS
INTRODUCTION 3
Important Safety Information 3
Personal Injury Or Death Hazards 4
New Kühl Control Options 6
 ComponentIdentication 7
 ModelandSerialNumberLocation 7
 ModelNumberReferenceGuide 8
 SerialNumberReferenceGuide 9
SPECIFICATIONS 10
 RefrigerationSystemsPerformanceData 10
Installation 11
 ElectricalData 12
 CircuitRating/Breaker/powercord/wallReceptacle 12
OPERATION 14
 AirowDirection 14
 UserInterface 15
 Wi-FiSETUPINSTRUCTIONS 27
Control Panel 31
Remote Control 32
Unit 33
 RefrigerationSequenceOfOperation 36
ROUTINEMAINTENANCE 37
 RemoveAndInstallTheFrontCover 37
 StandardFilterRemoval/InstallationInstructions 39
REMOVE AND INSTALL THE CHASSIS 41
R-410A SEALED SYSTEM REPAIR 42
 SealedSystemMethodofCharging/Repairs 47
COMPONENTTESTING 47
 HermeticComponentsCheck 47
 CompressorChecks 48
 CompressorReplacement 50
 FanMotor 52
 Capacitors 52
 HeatingElement 53
 DrainPanValve 53
 TestingtheUserInterfaceandElectronicControlBoard 54
 ThermistorsDescription 54
 ElectronicControlBoardIdentication 56
 ReplacetheElectronicControlBoard 57
 ReplacetheUserInterface 57
TROUBLESHOOTING 58
 DiagnosticCodes 59
Troubleshooting Tips 60
WIRINGDIAGRAMS 66
PARTSCATALOG 68
AVAILABLEACCESSORIES 75

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Your safety and the safety of others is very
important.
We have provided many important safety messages in this manual and on your appliance. Always read and obey all
safety messages.
This is a safety Alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol with the word “WARNING”
or “CAUTION”. These words mean:
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 fol-
lowed.
Indicates property damage can occur if instructions are not followed.
WARNING
Refrigeration system
under high pressure
Do not puncture, heat, expose to ame or incinerate.
Only certied refrigeration technicians should service
this equipment.
R410A 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.
Do not use standard R22 gauge sets.
NOTICE
CAUTION
WARNING
Theinformationinthismanualisintendedforusebyaqualiedtechnicianwhoisfamiliarwiththesafetyproce-
dures required for installation and repair, and who is equipped with the proper tools and test instruments required
toservicethisproduct.
Installationorrepairsmadebyunqualiedpersonscanresultinsubjectingtheunqualiedpersonmakingsuch
repairsaswellasthepersonsbeingservedbytheequipmenttohazardsresultingininjuryorelectricalshock
whichcanbeseriousorevenfatal.
Safetywarningshavebeenplacedthroughoutthismanualtoalertyoutopotentialhazardsthatmaybeencoun-
tered.Ifyouinstallorperformserviceonequipment,itisyourresponsibilitytoreadandobeythesewarningsto
guardagainstanybodilyinjuryorpropertydamagewhichmayresulttoyouorothers.
IMPORTANT SAFETY INFORMATION
INTRODUCTION

4 PB
SAFETY
FIRST
WARNING AVERTISSEMENT ADVERTENCIA
Do not remove, disable or
bypass this unit’s safety
devices. Doing so may cause
re, Doing so may cause re,
injuries, or death.
Ne pas supprime, désactiver ou
contourner cette l´unité des
dispositifs de sécurité, faire vous
risqueriez de provoquer le feu, les
blessures ou la mort.
No eliminar, desactivar o pasar
por alto los dispositivos de
seguridad de la unidad. Si lo hace
podría producirse fuego, lesiones
o muerte.
ELECTRICAL HAZARDS:
• Unplugand/ordisconnectallelectricalpowertotheunitbeforeperforminginspections,maintenance,orservice.
• Makesuretofollowproperlockout/tagoutprocedures.
• Alwaysworkinthecompanyofaqualiedassistantifpossible.
• Capacitors,evenwhendisconnectedfromtheelectricalpowersource,retainanelectricalchargepotential
capableofcausingelectricshockorelectrocution.
• Handle,discharge,andtestcapacitorsaccordingtosafe,established,standards,andapprovedprocedures.
• Extremecare,properjudgment,andsafetyproceduresmustbeexercisedifitbecomesnecessarytotestor
troubleshootequipmentwiththepowerontotheunit.
• Donotspraywaterontheairconditioningunitwhilethepowerison.
• Electricalcomponentmalfunctioncausedbywatercouldresultinelectricshockorotherelectricallyunsafe
conditionswhenthepowerisrestoredandtheunitisturnedon,evenaftertheexteriorisdry.
• Useairconditioneronasinglededicatedcircuitwithinthespeciedamperagerating.
• Useonaproperlygroundedoutletonly.
• Donotcutormodifythepowersupplycordorremovethegroundprongoftheplug.
• Neveroperatetheunitonanextensioncord.
• Followallsafetyprecautionsanduseproperandadequateprotectivesafetyaidssuchas:gloves,goggles,
clothing,properlyinsulatedtools,andtestingequipmentetc.
• Failuretofollowpropersafetyproceduresand/orthesewarningscanresultinseriousinjuryordeath.
INTRODUCTION
PERSONAL INJURY OR DEATH HAZARDS

5PB
• REFRIGERATION SYSTEM REPAIR HAZARDS:
• Useapprovedstandardrefrigerantrecoveringproceduresandequipmenttorelievehighpressurebeforeopen-
ingsystemforrepair.
• Donotallowliquidrefrigeranttocontactskin.Directcontactwithliquidrefrigerantcanresultinminortomoder-
ateinjury.
• Beextremelycarefulwhenusinganoxy-acetylenetorch.Directcontactwiththetorch’sameorhotsurfaces
cancauseseriousburns.
• Makecertaintoprotectpersonalandsurroundingpropertywithreproofmaterialsandhaveareextinguisher
athandwhileusingatorch.
• Provideadequateventilationtoventofftoxicfumes,andworkwithaqualiedassistantwheneverpossible.
• Alwaysuseapressureregulatorwhenusingdrynitrogentotestthesealedrefrigerationsystemforleaks,ush-
ingetc.
• MECHANICAL HAZARDS:
• Extremecare,properjudgmentandallsafetyproceduresmustbefollowedwhentesting,troubleshooting,han-
dling,orworkingaroundunitwithmovingand/orrotatingparts.
• Becarefulwhen,handlingandworkingaroundexposededgesandcornersofthesleeve,chassis,andotherunit
componentsespeciallythesharpnsoftheindoorandoutdoorcoils.
• Useproperandadequateprotectiveaidssuchas:gloves,clothing,safetyglassesetc.
• Failuretofollowpropersafetyproceduresand/orthesewarningscanresultinseriousinjuryordeath.
• PROPERTY DAMAGE HAZARDS
• FIRE DAMAGE HAZARDS:
• ReadtheInstallation/OperationManualfortheairconditioningunitpriortooperating.
• Useairconditioneronasinglededicatedcircuitwithinthespeciedamperagerating.
• Connecttoaproperlygroundedoutletonly.
• Donotremovegroundprongofplug.
• Donotcutormodifythepowersupplycord.
• Donotuseextensioncordswiththeunit.
• Beextremelycarefulwhenusingacetylenetorchandprotectsurroundingproperty.
• Failuretofollowtheseinstructionscanresultinreandminortoseriouspropertydamage.
• WATER DAMAGE HAZARDS:
• Improperinstallation,maintenanceorservicingoftheairconditionerunitcanresultinwaterdamagetopersonal
itemsorproperty.
• Insurethattheunithasasufcientpitchtotheoutsidetoallowwatertodrainfromtheunit.
• Donotdrillholesinthebottomofthedrainpanortheundersideoftheunit.
• Failuretofollowtheseinstructionscanresultindamagetotheunitand/orminortoseriouspropertydamage.
INTRODUCTION
PERSONAL INJURY OR DEATH HAZARDS

6 PB
INTRODUCTION
New Kühl Control Options
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onthe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.
Figure 101 (New Kuhl Options)

7PB
INTRODUCTION
Thisservicemanualisdesignedtobeusedinconjunctionwiththeinstallationandoperationmanualsprovided
witheachairconditioningsystem.
Thisservicemanualwaswrittentoassisttheprofessionalservicetechniciantoquicklyandaccuratelydiagnose
andrepairmalfunctions.
Installationproceduresarenotgiveninthismanual.TheyaregivenintheInstallation/Operationmanualwhichcan
beaquiredontheFriedrichwebsite.
Model and Serial Number Location
Component Identication
Figure 102 (Component Identication)
Figure 103 (Model and Serial Number Location)
FRIEDRICH
AIRCONDITIONING CO.
SANANTONIO, TX
MODELNUMBER
SERIALNUMBER
VOLTS60 HZ/ 1PH
115
103 VOLT MIN.
COOLING:
BTU/HR
HEATING:
BTU/HR
7500
EER
9.8
AMPS
6.9
4000
EER
AMPS
11.2
MAXAMPS:
23.5 OZS.
DESIGNPRESSURES
600 PSIG HS
300 PSIG LS
U.S. PATENTS
D458, 229 S
5,634,346
IFCONNECTED TO
AFUSE PROTECTED
CIRCUIT, USEA 12 A
TIMEDELAY FUSE
LISTED 183H
AALY00219
EQ08N11-A
ROOM AIR
CONDITIONER
FRIEDRICH
Assembled in Mexico
MODEL NUMBER
AIR CONDITIONING CO.
SAN ANTONIO, TX
SERIAL NUMBER
VOLTS 60 HZ/ 1PH
AALY00219
EQ08N11-A
SYSTEM
MODE
FAN
Condensor Coil
Sleeve
Condensor Fan Blade
Blower Motor
Blower Wheel
Evaporator Coil
User Interface
Relay Board
Compressor

8 PB
INTRODUCTION
Model Number Reference Guide
IMPORTANT:Itwillbenecessaryforyoutoaccuratelyidentifytheunityouareservicing,soyoucanbecertainofa
properdiagnosisandrepair.
Figure 104 (Model Number Reference Guide)
MODEL TYPE
K - KUHL
W - WALLMASTER
FUNCTION
C - COOL ONLY
E - ELECTRIC HEAT
APPLICATION
Q - PORTABLE
APPROXIMATECOOLING
BTU/HR
ENGINEERINGREVSION
LETTER INDICATES AN
ENGINEERINGMODIFI-
CATIONTOANEXISTING
MODEL
MARKETINGSUFFIXLETTER
INDICATES MODIFICATION TO
ANEXISTINGMODEL
HEAT STRIP
0-STRAIGHTCOOL
1 -1 KW HEAT STRIP, NOMINAL
VOLTAGE
1-115VOLTS
MODEL INTRODUCTORY
CHARACTER
A - 2019
B -
C -
K C M 21 A 3 0 A - A

9 PB
INTRODUCTION
SERIAL NUMBER REFERENCE GUIDE
Figure 105 (Serial Number Reference Guide)
YEAR OF MANUFACTURE
17=201718=2018
19=201920=2020
21=202122=2022
MONTH OF MANUFACTURE
01=JANUARY
02=FEBRUARY
03=MARCH
04=APRIL
05=MAY
06=JUNE
07=JULY
08=AUGUST
09=SEPTEMBER
10=OCTOBER
11=NOVEMBER
12=DECEMBER
FACTORYDESIGNATION
M=FRIEDRICHMTY
NUMERIC SEQUENCE
FIRSTUNITOFEACHMONTH=00001
17 12 M 00001

10 PB
SPECIFICATIONS
Refrigeration Systems Performance Data
Conden-
sor Temp
Deg. F
Discharge
Temp
Deg F
Suction
Temp
Deg F
Electrical Ratings
R-410A
REF. Breaker
Model
AMPS
COOL
AMPS
HEAT
LOCKED
ROTOR
AMPS
CHARGE
IN OZ Volt age
60
HERTZ
AMPS
Kühl®(Cool Only)
KCQ06A10A 119 148 55 4.8 25.2 18.8 115 15
KCQ08A10A 116 150 56 6.5 30.5 15.2 115 15
KCQ10A10A 119 161 52 8.6 49 19.4 115 15
Kühl®+ (Electric Heat)
KEQ0811A 114 145 48 6.4 11.2 30.5 15.6 115 15
*Rating Conditions: 80 degrees F, room air temp. & 50% relative humidity, with 95 degree F, outside air temp & 40% relative humidity, all systems use R-410A.
Test done at highest unit fan speed.
Figure 201 (Refrigeration Systems Performance Data)
Model UPC
Cooling
Btu
Heating
Btu Volts
Cooling
Amps
Cooling
Watts
Heating
Amps
Heating
Watts EER CEER
Moisture
Removal-
Pints/HR CFM Sleeve
Kühl®(Cool Only)
KCQ06A10A 724587436570 6000 — 115 4.8 492 — — 12.2 12.1 1.5 190
Q
KCQ08A10A 724587436587 8000 — 115 6.5 661 — — 12.1 12.0 2.1 200
KCQ10A10A 724587436594 9500 — 115 8.6 864 — — 11.0 10.9 3.2 250
Kühl®+ (Electric Heat)
KEQ08A11A 724587432749 7700 4000 115 6.4 694 11.2 1290 11.1 11.0 2.1 200 Q
Figure 202 (Specications)