Friedrich Kuhl KCQ06A10A Bedienungsanleitung

1 PB

Service Manual

Room Air Conditioners

Q Chassis Models

Kühl KCQ06A10A, KCQ08A10A, KCQ10A10A,

KCQ10A10B

115-Volt:

Kühl +

Electric Heat

115-Volt:

93001404_03

KEQ08A11A

2 PB

Table of Contents

INTRODUCTION 3

Important Safety Information 3

Personal Injury Or Death Hazards 4

Kühl Control Options 6

Component Identication 7

User Interface 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

Control Panel 27

Remote Control 28

Unit 29

General Knowledge Sequence Of Refrigeration 32

ROUTINE MAINTENANCE 33

REMOVE AND INSTALL THE FRONT COVER 33

REMOVE AND INSTALL THE CHASSIS 36

TROUBLESHOOTING 37

Diagnostic Codes 38

Tips 40

COMPONENT TESTING 45

Compressor Checks 45

Capillary Tube Assy (Cool Only Units) 47

Capacitors 48

Heating Element 49

Drain Pan Valve 49

Testing the User Interface and Electronic Control Board 50

Thermistors Description 50

Replace the Electronic Control Board 52

Replace the User Interface 52

R-410A SEALED SYSTEM REPAIR 53

Undercharged Refrigerant Systems 55

Overcharged Refrigerant Systems 56

Restricted Refrigerant System 57

Sealed System Method of Charging/ Repairs 58

Compressor Replacement 59

Compressor Replacement -Special Procedure in Case of Compressor Burnout 60

WIRING DIAGRAMS 61

INTERACTIVE PARTS VIEWER 63

Available Accessories 64

APPENDIX 65

Appendix 1 - Thermistor Resistence Values (This Table Applies to All Thermistors) 65

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

WARNING

ALWAYS USE INDUSTRY STANDARD

PERSONAL PROTECTIVE EQUIPMENT

(PPE)

5PB

• REFRIGERATION SYSTEM REPAIR HAZARDS:

• Use approved standard refrigerant recovering procedures and equipment to relieve high pressure before

opening system for repair. Reference EPA regulations (40 CFR Part 82, Subpart F ) Section 608.

• Do not allow liquid refrigerant to contact skin. Direct contact with liquid refrigerant can result in minor to

moderate 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,

ushing etc.

• MECHANICAL HAZARDS:

• Extreme care, proper judgment and all safety procedures must be followed when testing, troubleshooting,

handling, 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

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 -1.15 KW HEAT STRIP, NOMINAL

VOLTAGE

1 - 115 VOLTS

MODEL INTRODUCTORY

CHARACTER

A - 2019

B - 2020

C - 2021

D - 2022

K C M 21 A 1 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

KCQ08A10A-A

KCQ08A10A-B

KCQ08A10A-C

KCQ08A10A-E

KCQ08A10A-F

116 150 56 6.5 30.5 15.2 115 15

KCQ08A10A-D 116 150 56 6.5 30.5 16.7 115 15

KCQ08A10A-G 116 150 56 6.5 30.5 16.7 115 15

KCQ10A10A 119 161 52 8.6 49 19.4 115 15

KCQ10A10B

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

KCQ10A10B 9700

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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