Friedrich Q Series Guía

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

3 PB

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

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

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)

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