Friedrich EQ08M11 User Manual

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Service Manual

2 0 11

Room Air Conditioners

Tem perature

Cooler

W arm er

Cool

 

Fan

 

 

 

Power

 

 

 

Fan

M

 

 

Only

 

 

oney

Tim er

 

Speed

Saver®

 

 

On/

Oper

 

 

ation

 

 

 

Start

Stop

 

 

 

 

 

 

SetHr.

R-410AModels

Cool Only

115-Volt:XQ05M10*, XQ06M10*, XQ08M10*, XQ10M10*

Cool with Electric Heat

115-Volt:EQ08M11*

X-Star-ServMan(1-11)

*Last character may vary.

Table Of Contents

 

Important Safety Information ..........................................................................................................................................

2-4

Unit Identifi cation ...............................................................................................................................................................

5

Performance Data .............................................................................................................................................................

6

Chassis Specifi cations ......................................................................................................................................................

6

Installation Information/Sleeve Dimensions ......................................................................................................................

6

Electrical Data ...................................................................................................................................................................

7

Before Operating the Unit .................................................................................................................................................

8

For Best Cooling Performance and Energy Effi ciency ......................................................................................................

8

How to Operate the XQ .....................................................................................................................................................

9

How to Use the XQ Remote Control ...............................................................................................................................

10

How to Operate the EQ ...................................................................................................................................................

10

Electronic Control Sequence of Operation ......................................................................................................................

11

Functional Component Defi nition ....................................................................................................................................

12

Components Testing ..................................................................................................................................................

13-16

Refrigeration Sequence of Operation .............................................................................................................................

17

R-410ASealed System Repair Considerations ..............................................................................................................

18

Sealed Refrigeration System Repairs ........................................................................................................................

19-22

Compressor Checks ...................................................................................................................................................

23-24

Compressor Replacement ..........................................................................................................................................

25-26

Routine Maintenance .................................................................................................................................................

27-28

Performance Test Data Sheet .........................................................................................................................................

29

Troubleshooting .........................................................................................................................................................

30-36

Wiring Diagrams ........................................................................................................................................................

37-38

Instructions for using Cooling Load Estimate Form ........................................................................................................

39

Cooling Load Estimate Form ...........................................................................................................................................

40

Heat Load Form .........................................................................................................................................................

41-42

Warranty ..........................................................................................................................................................................

43

Technical Assistance .......................................................................................................................................................

44

1

IMPORTANT SAFETY INFORMATION

The information contained in this manual is intended for use by a qualifi ed service technician who is familiar with the safety procedures 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 unqualifi ed persons can result in subjecting the unqualifi 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 encountered. 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.

Your safety and the safety of others are 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:

WARNING

CAUTION

You can be killed or seriously injured if you do not follow instructions.

You can receive minor or moderate injury if you do not follow instructions.

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.

A message to alert you of potential property damage will have the NOTICE word “NOTICE”. Potential property damage can occur if instructions

are not followed.

PERSONAL INJURY OR DEATH HAZARDS

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 qualifi 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.

2

Do not spray or pour water on the return air grille, discharge air grille, evaporator coil, control panel, and sleeve on the room side of the air conditioning unit while cleaning.

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.

Never operate the A/C unit with wet hands.

Use air conditioner on a single dedicated circuit within the specifi ed amperage rating.

Use on 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.

Follow all safety precautions and use proper and adequate protective safety aids such as: gloves, goggles, clothing, adequately insulated tools, and testing equipment etc.

Failure to follow proper safety procedures and/or these warnings can result in serious injury or death.

REFRIGERATION SYSTEM HAZARDS:

Use approved standard refrigerant recovering procedures and equipment to relieve pressure before opening system for repair.

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-acetylenetorch. Direct contact with the torch’s fl ame or hot surfaces can cause serious burns.

Make sure to protect personal and surrounding property with fi re proof materials.

Have a fi re extinguisher at hand while using a torch.

Provide adequate ventilation to vent off toxic fumes, and work with a qualifi ed assistant whenever possible.

Always use a pressure regulator when using dry nitrogen to test the sealed refrigeration system for leaks, fl ushing etc.

Make sure to follow all safety precautions and to use proper protective safety aids such as: gloves, safety glasses, clothing etc.

Failure to follow proper safety procedures and/or these warnings can result in serious injury or death.

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 sleeve, chassis, and other unit components especially the sharp fi 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.

3

PROPERTY DAMAGE HAZARDS

FIRE DAMAGE HAZARDS:

Read the Installation/Operation Manual for this air conditioning unit prior to operating.

Use air conditioner on a single dedicated circuit within the specifi 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.

Failure to follow these instructions can result in fi re and minor to serious property damage.

WATER DAMAGE HAZARDS:

Improper installation maintenance, or servicing of the air conditioner unit, or not following the above

Safety Warnings can result in water damage to personal items or property.

Insure that the unit has a suffi 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 result in damage to the unit and/or minor to serious property damage.

INTRODUCTION

This service manual is designed to be used in conjunction with the operation and installation manual provided with each unit.

This service manual was written to assist the professional HVAC service technician to quickly and accurately diagnose and repair any malfunctions of this product.

This manual, therefore, will deal with all subjects in a general nature. (i.e. All text will pertain to all models).

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. (See Unit Identifi cation.)

 

Compressor

 

Condenser Coil

Front Cover

 

 

Discharge Air

 

 

 

System Controls

 

 

Outdoor Grille

 

 

Evaporator Coil

 

Sleeve

 

 

Return Air Grille/Filter

 

 

 

Blower Wheel

 

 

 

Blower Motor

Condenser Fan Blade

Basepan

 

4

UNIT IDENTIFICATION

Model Number Code

X Q 08 M 1 0 A - A

1st Digit – Function

E = Electric Heat X = Straight Cool

2nd Digit

Q = Chassis Size

3rd and 4th Digit - Approximate BTU/HR in 1000s (Cooling)

Heating BTU/Hr capacity listed in the Specifi cation/Performance Data Section

9th Digit – Engineering Suffi x

Indicates Modifi cation

(Subject to change)

8th Digit – Marketing Suffi x

Indicates Modifi cation (Subject to change)

7th Digit – Options

0 = Straight Cool

1 = 1 KW Heat Strip, Nominal

6th Digit – Voltage

1 = 115 Volts

5th Digit - Model Series / Year Introduced

M=2010

RAC Serial Number Identifi cation Guide

Serial Number

 

A

A

A

Y

00001

Decade Manufactured

 

 

 

 

 

L=0

C=3

F=6

J=9

 

 

 

Production Run Number

A=1

D=4

G=7

 

 

 

 

 

B=2

E=5

H=8

 

 

 

 

 

 

 

 

 

 

 

Year Manufactured

 

 

 

 

Product Line

A=1

D=4

G=7

K=0

 

 

 

X-Start

B=2

E=5

H=8

 

 

 

 

 

C=3

F=6

J=9

 

 

 

 

 

 

 

 

 

 

 

Month Manufactured

 

 

 

 

 

A=Jan D=Apr G=Jul K=Oct

 

 

 

 

B=Feb E=May H=Aug L=Nov

 

 

 

 

C=Mar F=Jun J=Sept M=Dec

 

 

 

 

 

 

 

 

 

 

 

 

5

 

PERFORMANCE DATA

*

 

 

 

 

 

 

 

 

 

 

 

EVAP. AIR TEMP. DEG. F

 

 

 

 

OPERATING PRESSURES

ELECTRICAL RATINGS

R-410A

 

 

COOLING

CONDENSER

 

 

 

 

REF.

 

 

 

 

Discharge Temp

Suction Temp

Super Heat

Sub-Cooling

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PERFORMANCE DATA**

Discharge Air

Temp.

TEMPERATURE DEG. F

Suction

Discharge

Amps Cool

Amps Heat

Locked Rotor

Charge in

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Drop F.

 

 

 

 

 

Amps

OZ.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XQ05M10*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

57

23

117

133

60

5

19

157

410

4.5

 

24.0

27.0

Chassis

 

XQ06M10*

54

26

120

152

63

12

18

150

410

4.9

 

25.0

21.0

 

XQ08M10

*

51

29

119

160

63

13

25

138

420

6.3

 

32.0

25.5

Q-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XQ10M10*

47

33

131

176

59

12

32

132

490

9.8

 

57.0

24.0

 

 

EQ08M11*

49

31

120

162

60

14

27

133

420

7.0

7.6

32.0

25.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* Due to continuing research in newenergy-savingtechnology, performance data and 8th and 9th character are subject to change without notice.

Rating Conditions: 80 degrees F, room air temp. & 50% relative humidity, with 95 degree F, outside air temp & 40% relative humidity, all systems use R410A.

BREAKER FUSE

Voltage

60 Hertz Amps

115 15

115 15

115 15

115 15

115 15

 

 

 

 

 

 

 

 

 

Energy

Estimated

 

Room Side

 

 

 

 

 

 

 

 

 

 

 

Yearly

Moisture

Air

Net

 

Cooling

Heating

Volts

Cooling

Cooling

Heating

Heating

 

Ratio

Operating

Removal

Circulation

Weight

Model

Capacity Btu

Capacity Btu

Rated

Amps

Watts

Amps

Watts

COP

EER

Cost

Pints/HR

CFM

Sleeve Lbs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XStar ®

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XQ05M10*

5500

115

4.5

491

 

11.2

$39

1.0

170

Q

72

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XQ06M10*

6000

115

4.9

500

 

12.0

1.0

175

Q

72

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XQ08M10*

7500

115

6.9

701

 

10.7

$56

1.7

175

Q

71

 

 

 

 

 

 

 

 

9.8

$56

2.5

180

Q

71

XQ10M10*

9500

115

9.0

970

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XStar ® Electric Heat

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EQ08M11*

7500

4000

115

6.3

701

11.2

1290

2.8

10.7

$56

1.9

175

Q

72

 

 

 

 

 

 

 

 

 

 

 

 

R-410A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

As an ENERGY STAR®

 

 

Co. has determined that the selected ENERGY STAR® ( ) models

 

 

 

 

meet the ENERGY STAR®

 

 

 

 

 

 

 

 

 

 

 

 

 

Estimated yearly operating cost based on a 2007 national average electricity cost of 10.65 cents per kWh.

† The estimated yearly operating cost of this model was not available at the time the range was published.

All models use environmentally friendly R-410Arefrigerant.

Installation Information / Sleeve Dimensions

* Minimum extensions when mounted in a window.

** Minimum widths achieved using one side curtain assembly as opposed to both in a standard installation.

Circuit Rating/ Breaker

Window Mounting Kits

FRONT

SIDE VIEW

Friedrich heat/cool models include accessories for thru-the-wallinstallation only. Window mounting requires use of optional accessory kit as listed above.

6

ELECTRICAL DATA

WARNING

ELECTRIC SHOCK HAZARD

Turn off electric power before service or installation.

All electrical connections and wiring MUST be installed by a qualifi ed electrician and conform to the National Electrical Code and all local codes which have jurisdiction.

Failure to do so can result in personal injury or death.

 

NOTICE

 

 

 

 

 

FIRE HAZARD

 

 

Not following the above WARNING could result in fi re or

 

 

electically unsafe conditions which could cause moderate

 

 

or serious property damage.

 

 

Read, understand and follow the above warning.

 

 

 

 

Wire Size

Use ONLY wiring size recommended for single outlet branch circuit.

Fuse/Circuit Breaker

Use ONLY the correct HACR type and size fuse/circuit breaker. Read electrical ratings on unit’s

 

rating plate. Proper circuit protection is the responsibiity of the homeowner.

Grounding

Unit MUST be grounded from branch circuit through service cord to unit, or through separate

 

ground wire provided on permanently connected units. Be sure that branch circuit or general

 

purpose outlet is grounded.

Receptacle

The fi eld supplied outlet must match plug on service cord and be within reach of service cord.

 

Do NOT alter the service cord or plug. Do NOT use an extension cord. Refer to the table above

 

for proper receptacle and fuse type.

The consumer - through the AHAM Room Air Conditioner Certifi cation Program - can be certain that the AHAM Certifi cation Seal accurately states the unit’s cooling and heating capacity rating, the amperes and the energy effi ciency ratio.

*HACR: Heating Air Conditioning and Refrigeration

7

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 electrical shock, serious injury or death.

8

How to operate the Friedrich room air conditioner (XQ models)

To start unit

If your air conditioner is installed and plugged into a proper receptacle, it is ready to go. The first time the unit is started, the compressor will delay for three minutes. See Automatic Component Protection on the following page.

1Touch the Power button once. The unit will automatically be inCool mode with the temperature set at 75°F (24°C) and the fan speed at F1, the sleep setting.

To set mode of operation

When you rst turn the unit on, it will be in theCool mode (light on), with constant fan.

2Touch the Mode button once to activate theMoneySaver® (light on).

MONEYSAVER® is a feature that cycles the fan with the compressor so that the fan does not run all the time. This saves energy and improves dehumidication. Or you may prefer constant fan for more air movement (to return to constant fan, touch theMode button two more times).

In order to run the fan by itself, do the following:

3Continuing from MoneySaver® mode (light on), touch theModebutton once to activate theFAN ONLY feature (light on).

The FAN ONLY setting will circulate air in the room without the compressor coming on.

To adjust temperature

4Use the Mode button to select either theCOOL orMoneySaver® function

5COOLER – Touch thebutton to lower the room air temperature.

6WARMER – Touch thebutton to raise the room air temperature.

7Press both the andbuttons at the same time to switch the temperature readout from Fahrenheit (°F) to Celsius (°C).

Repeat step 7 to switch from °C back to °F.

To adjust fan speed

8Touch the FanSpeedbutton to see the current setting. Touch it again to change speed. F1 is the lowest setting (SLEEP SETTING / LOW), F2 isMEDIUM, and F3 isHIGH.

To activate Smart Fan

9There is a fourth option, SF, when selecting the fan speed. This is the SMART FAN function. SMART FAN DOES NOT OPERATE IN CONJUCTION WITH THE FAN ONLY MODE.

8

9

2

3

4

1

Figure 5

8

9

2

3

4

1

Figure 3

 

 

 

 

 

 

PM

 

 

 

 

X Star

PM

 

 

 

 

 

 

 

 

 

 

Cool

 

 

Fan

 

 

 

Cool

®

 

Speed

 

Mode

MoneySaver

 

 

 

 

 

Fan

 

Mode

MoneySaver®

 

Speed

 

Fan Only

 

 

 

 

 

 

Fan Only

 

 

 

 

 

 

Clock

 

 

Timer

Set

Clock

 

 

StartTime

 

 

Timer

 

Hour

Start Time

 

 

 

Set

 

 

On/Off

 

Hour

Stop Time

T

 

 

Stop Time

 

 

 

 

 

Temp/Hour

 

 

 

 

 

 

 

 

 

 

5

6

13

10

11

12

 

5

6

13

10

11

12

 

 

7

 

 

 

 

 

 

7

To set the hour clock

10Touch the Set Hour button to see the current setting (clock light comes on). The number that is displayed is the approximate time (hour only). Use the and buttons to change the settings. BE SURE TO SET A.M. AND P.M. ACCORDINGLY. (P.M. is indicated by a red light in the upper left corner of the display).

To set the timer

NOTE: Set theHOUR CLOCK before attempting to set timer functions.

You can set the START andSTOP times a minimum of one hour apart, and a maximum oftwenty-threehours apart.

11After setting the time, press the Set Hour button once (Start light comes on). Use the and buttons to select the time that the unit willSTART.

12After selecting the START time, press theSetHourbutton once more (Stop light comes on). Use the and buttons to select the time that the unit willSTOP. After selecting the stopping time, press theSet Hour button once.

13Press the Timer On/Off button (light turns on) to activate the timer function. To deactivate this function, press theTimer On/Off button once again (light turns off). Once the on and off times have been selected, they will remain in memory and cycle daily until changed.

NOTE: If the unit is unplugged or the power is interrupted, the HOUR must be reset or theTimer On/Off will not function when desired.

Automatic component protection

Smart Fan will adjust the fan speed automatically to maintain the desired comfort level. For example, if the outside doors in your home are opened for an extended period of time, or more people enter a room, Smart Fan may adjust to a higher fan speed to compensate for the increased heat load. This keeps you from having to adjust the fan speed on your own.

Your unit is equipped with Automatic Component Protection. To protect the compressor of the unit, there is a three minute start delay if you turn the unit off or if power is interrupted. The fan operation will not be affected. Also, if you switch from Cool mode toFan Only, and switch back toCool mode, there is a three minute delay before the compressor comes back on.

9