Friedrich SQ10N10 User Manual

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Service/Parts Manual

2 0 1 2

Room Air Conditioners

88

SYSTEM

FAN MODE

POWER

FAN SPEED

SCHEDULE

Q Chassis Models

115-Volt:SQ05N10*, SQ06N10*, SQ08N10*, SQ10N10*

Cool Only

115-Volt:EQ08N11*

Cool and Electric Heat

KuhlQ_Serv/Parts Man (4-12)

* Last character may vary.

93001401_01

Table Of Contents

 

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

2-4

Introduction .......................................................................................................................................................................

4

8QLW ,GHQWL¿FDWLRQ

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

6

&KDVVLV 6SHFL¿FDWLRQV

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

6

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

7

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

8

)RU %HVW &RROLQJ 3HUIRUPDQFH DQG (QHUJ\ (I¿FLHQF\

.XKO 4 &RQWURO 3DQHO 2SHUDWLRQ DQG 6\PEROV ,GHQWL¿FDWLRQ

Kuhl Q Control Options ..................................................................................................................................................

10

Control Panel Operation Instructions ..........................................................................................................................

11-17

5HPRWH &RQWURO 2SHUDWLRQ

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

20-21

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

22-25

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

26

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

27

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

28-33

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

34-35

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

36-37

Available Accessories ......................................................................................................................................................

37

Standard Filter Cleaning/Installation Instructions ............................................................................................................

38

5RXWLQH 0DLQWHQDQFH

After Maintenance/Repair Start-UpChecklist and Notes ................................................................................................

41

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

42

How to Check the Diagnostic Codes ...............................................................................................................................

43

Erasing Diagnostic Codes ...............................................................................................................................................

43

Error Codes .....................................................................................................................................................................

44

Compressor Test Mode ...................................................................................................................................................

45

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

46-52

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

53-54

Thermistor Resistance Values .......................................................................................................................................

55

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

56

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

57

+HDW /RDG )RUP

Parts List ....................................................................................................................................................................

60-62

Addendum 1 ....................................................................................................................................................................

63

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

64

Parts Depots ...................................................................................................................................................................

65

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

65

1

IMPORTANT SAFETY INFORMATION

7KH LQIRUPDWLRQ FRQWDLQHG LQ WKLV PDQXDO LV LQWHQGHG IRU XVH E\ D TXDOL¿HG VHUYLFH WHFKQLFLDQ ZKR LV IDPLOLDU 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.

,QVWDOODWLRQ RU UHSDLUV PDGH E\ XQTXDOL¿HG SHUVRQV FDQ UHVXOW LQ VXEMHFWLQJ WKH XQTXDOL¿HG SHUVRQ PDNLQJ VXFK UHSDLUV DV ZHOO DV WKH SHUVRQV EHLQJ VHUYHG E\ WKH HTXLSPHQW WR KD]DUGV UHVXOWLQJ LQ LQMXU\ RU HOHFWULFDO 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

ZDUQLQJV WR JXDUG DJDLQVW DQ\ ERGLO\ LQMXU\ RU SURSHUW\ GDPDJH ZKLFK PD\ UHVXOW WR \RX RU RWKHUV

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

<RX FDQ EH NLOOHG RU VHULRXVO\ LQMXUHG LI \RX GR QRW IROORZ LQVWUXFWLRQV

<RX FDQ UHFHLYH PLQRU RU PRGHUDWH LQMXU\ LI \RX GR QRW IROORZ LQVWUXFWLRQV

$OO VDIHW\ PHVVDJHV ZLOO WHOO \RX ZKDW WKH SRWHQWLDO KD]DUG LV WHOO \RX KRZ WR UHGXFH WKH FKDQFH RI LQMXU\ 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.

% $OZD\V ZRUN LQ WKH FRPSDQ\ RI D TXDOL¿HG DVVLVWDQW LI SRVVLEOH

% 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.

% ([WUHPH FDUH SURSHU MXGJPHQW DQG VDIHW\ SURFHGXUHV PXVW EH H[HUFLVHG LI LW EHFRPHV QHFHVVDU\ 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.

% 8VH DLU FRQGLWLRQHU RQ D VLQJOH GHGLFDWHG FLUFXLW ZLWKLQ WKH VSHFL¿HG DPSHUDJH UDWLQJ

% 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.

% )DLOXUH WR IROORZ SURSHU VDIHW\ SURFHGXUHV DQG RU WKHVH ZDUQLQJV FDQ UHVXOW LQ VHULRXV LQMXU\ RU GHDWK

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

WR PRGHUDWH LQMXU\

% %H H[WUHPHO\ FDUHIXO ZKHQ XVLQJ DQ R[\ DFHW\OHQH WRUFK 'LUHFW FRQWDFW ZLWK WKH WRUFK¶V ÀDPH RU KRW surfaces can cause serious burns.

% 0DNH VXUH WR SURWHFW SHUVRQDO DQG VXUURXQGLQJ SURSHUW\ ZLWK ¿UH SURRI PDWHULDOV

% +DYH D ¿UH H[WLQJXLVKHU DW KDQG ZKLOH XVLQJ D WRUFK

% 3URYLGH DGHTXDWH YHQWLODWLRQ WR YHQW RII WR[LF IXPHV DQG ZRUN ZLWK D TXDOL¿HG DVVLVWDQW ZKHQHYHU possible.

% Always use a pressure regulator when using dry nitrogen to test the sealed refrigeration system for

OHDNV ÀXVKLQJ HWF

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

% )DLOXUH WR IROORZ SURSHU VDIHW\ SURFHGXUHV DQG RU WKHVH ZDUQLQJV FDQ UHVXOW LQ VHULRXV LQMXU\ RU GHDWK

MECHANICAL HAZARDS:

% ([WUHPH FDUH SURSHU MXGJPHQW DQG DOO VDIHW\ SURFHGXUHV PXVW EH IROORZHG ZKHQ WHVWLQJ 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

RWKHU XQLW FRPSRQHQWV HVSHFLDOO\ WKH VKDUS ¿QV RI WKH LQGRRU DQG RXWGRRU FRLOV

% Use proper and adequate protective aids such as: gloves, clothing, safety glasses etc.

% )DLOXUH WR IROORZ SURSHU VDIHW\ SURFHGXUHV DQG RU WKHVH ZDUQLQJV FDQ UHVXOW LQ VHULRXV LQMXU\ RU GHDWK

3

PROPERTY DAMAGE HAZARDS

FIRE DAMAGE HAZARDS:

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

% 8VH DLU FRQGLWLRQHU RQ D VLQJOH GHGLFDWHG FLUFXLW ZLWKLQ WKH VSHFL¿HG DPSHUDJH UDWLQJ

% 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.

% )DLOXUH WR IROORZ WKHVH LQVWUXFWLRQV FDQ UHVXOW LQ ¿UH DQG PLQRU WR VHULRXV SURSHUW\ GDPDJH

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.

% ,QVXUH WKDW WKH XQLW KDV D VXI¿FLHQW SLWFK WR WKH RXWVLGH WR DOORZ ZDWHU WR GUDLQ IURP WKH XQLW

% 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

7KLV VHUYLFH PDQXDO LV GHVLJQHG WR EH XVHG LQ FRQMXQFWLRQ ZLWK WKH RSHUDWLRQ DQG LQVWDOODWLRQ PDQXDO SURYLGHG 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.

7KLV PDQXDO WKHUHIRUH ZLOO GHDO ZLWK DOO VXEMHFWV LQ D JHQHUDO QDWXUH L H $OO WH[W ZLOO SHUWDLQ WR DOO PRGHOV

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.

6HH 8QLW ,GHQWL¿FDWLRQ

FRIEDRICH

MODEL NUMBER

EQ08N11-A

SERIAL NUMBER

AALY00219

VOLTS 60 HZ/ 1PH

115

103 VOLT MIN.

COOLING:

BTU/HR

7500

EER

9.8

AMPS

6.9

HEATING:

BTU/HR

4000

EER

AMPS

11.2

MAX AMPS:

23.5 OZS.

DESIGN PRESSURES

600 PSIG HS

300 PSIG LS

PATENTS

U.S.D458, 229 S

5,634,346

LISTED 183H

ROOM AIR

CONDITIONER

FRIEDRICH

AIR CONDITIONING CO.

SAN ANTONIO, TX

Assembled in Mexico

MODEL NUMBER

EQ08N11-A

SERIAL NUMBER

AALY00219

VOLTS 60 HZ/ 1PH

Register your air conditioner

Model information can be found on the name plate behind the front cover.

Please complete and mail the owner registration card furnished with this product, or register online at www.friedrich. com. For your convenience, record the model information here.

MODEL NUMBER

SERIAL NUMBER

PURCHASE DATE

4

UNIT IDENTIFICATION

KuhlQ Model Number Code

S Q 08 N 1 0 A - A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WK 'LJLW ± (QJLQHHULQJ 6XI¿[

 

 

 

 

 

 

 

 

 

 

 

 

 

,QGLFDWHV 0RGL¿FDWLRQ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6XEMHFW WR FKDQJH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1st Digit – Function

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WK 'LJLW ± 0DUNHWLQJ 6XI¿[

E = Electric Heat

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

,QGLFDWHV 0RGL¿FDWLRQ

 

 

 

 

 

 

 

 

 

 

 

S = Straight Cool

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6XEMHFW WR FKDQJH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7th Digit – Options

 

 

 

 

 

 

 

 

 

 

 

0 = Straight Cool

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 = 1 KW Heat Strip, Nominal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2nd Digit

 

 

 

 

 

 

 

 

 

 

 

 

Q = Chassis Size

 

 

 

 

 

 

 

 

 

6th Digit – Voltage

 

 

 

 

 

 

 

 

 

 

 

1 = 115 Volts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5th Digit - Model Series / Year Introduced

3rd and 4th Digit - Approximate

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N=2012

%78 +5 LQ V &RROLQJ

 

 

 

 

 

 

 

 

 

 

Heating BTU/Hr capacity listed in the

 

 

 

 

 

 

 

 

 

 

6SHFL¿FDWLRQ 3HUIRUPDQFH 'DWD 6HFWLRQ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5$& 6HULDO 1XPEHU ,GHQWL¿FDWLRQ *XLGH

Serial Number

 

A

B

A

Y

00001

Decade Manufactured

 

 

 

 

 

/

&

)

-

 

 

 

Production Run Number

A=1

D=4

G=7

 

 

 

 

 

B=2

E=5

H=8

 

 

 

 

Product Line

 

 

 

 

 

Year Manufactured

 

 

 

 

A=1

D=4

G=7

K=0

 

 

 

Kuhl Q

B=2

E=5

H=8

 

 

 

 

 

&

)

-

 

 

 

 

 

 

 

 

 

 

 

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 *

 

COOLING

EVAP. AIR TEMP. DEG. F

CONDENSER

 

 

 

 

Discharge Temp

 

PERFORMANCE DATA**

Discharge Air

Temp.

TEMPERATURE DEG. F

 

 

 

 

Drop F.

 

 

 

 

 

 

 

 

SQ05N10-A

57

23

115

146

Chassis-Q

SQ06N10-A

57

23

115

146

SQ08N10-A

58

23

118

158

 

 

SQ10N10-A

53

22

122

164

 

EQ08N11-A

53

27

117

159

 

 

 

OPERATING PRESSURES

ELECTRICAL RATINGS

R-410A

 

BREAKER FUSE

 

 

 

REF.

 

Suction Temp

Super Heat

Sub-Cooling

 

 

 

 

 

Voltage

 

Suction

Discharge

Amps Cool

Amps Heat

Locked Rotor

Charge in

60 Hertz Amps

 

 

 

 

 

 

 

 

 

 

 

Amps

OZ.

 

 

63

10

13

158

387

9

 

29.0

17.0

115

15

63

10

13

150

387

4.9

 

29.0

17.0

115

15

63

12

20

147

415

6.6

 

32.0

22.0

115

15

58

11

23

136

428

9.2

 

50.0

23.5

115

15

61

20

19

146

411

6.7

11.2

32.0

18.5

115

15

* 'XH WR FRQWLQXLQJ UHVHDUFK LQ QHZ HQHUJ\ VDYLQJ WHFKQRORJ\ SHUIRUPDQFH GDWD DQG WK DQG WK FKDUDFWHU DUH VXEMHFW WR FKDQJH ZLWKRXW QRWLFH5DWLQJ &RQGLWLRQV GHJUHHV ) URRP DLU WHPS UHODWLYH KXPLGLW\ ZLWK GHJUHH ) RXWVLGH DLU WHPS UHODWLYH KXPLGLW\ DOO V\VWHPV XVH 5 $

 

 

 

 

 

 

 

 

 

Energy

Estimated

 

Room Side

 

 

 

 

 

 

 

 

 

 

 

 

Yearly

Moisture

Air

Net

 

 

Cooling

Heating

Volts

Cooling

Cooling

Heating

Heating

 

Ratio

Operating

Removal

Circulation

Weight

Ship

Model

Capacity Btu

Capacity Btu

Rated

Amps

Watts

Amps

Watts

COP

EER

Cost

Pints/HR

CFM

Sleeve Lbs

Wt

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Kühl ®

SQ05N10*

5500

115

4.5

514

 

10.7

$41

0,5

190

Q

65

78

SQ06N10*

5900

115

4.9

561

 

18.7

$45

0.5

190

Q

71

84

SQ08N10*

7500

115

6.1

700

 

10.7

$56

1.2

240

Q

71

84

SQ10N10*

9500

115

8.4

969

 

9.8

$77

2.1

240

Q

75

88

Kühl+® Electric Heat

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EQ08N11*

7500

4000

115

6.9

765

11.2

1290

1.9

11.7

$61

1.9

175

Q

72

84

As an ENERGY STAR® partner, Friedrich Air Conditioning 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.

C US

Installation Information / Sleeve Dimensions

 

 

 

 

Depth

Shell Depth to

 

 

 

 

 

 

 

Thru-the-wallInstallation

 

 

 

 

 

Minimum

Minimum

Window Width

 

 

Finished Hole

 

 

 

 

 

with Front

Louvers

Extension

Extension

 

 

 

 

 

 

 

Sleeve

Height

Width

 

 

 

 

 

 

 

 

 

 

 

 

 

Into Room*

Outside*

Minimum**

Maximum

Height

Width

Max.Depth

Q

14"

19

"

21 3 8"

8

"

5

"

10

"

22"

42"

14

"

20"

8

*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

 

 

Circuit Rating

Plug

 

WallOutlet

 

 

 

 

 

 

 

(C)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Model

 

Breakeror

Face

PowerCord

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T-DFuse

(NEMA#)

Length (ft.)

Appearance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SQ05N10

*, SQ06N10*,

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SQ08N10

*, SQ10N10*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EQ08N11*

125V -15A

5 -15P

6

 

 

 

Front

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SIDE VIEW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Window Mounting Kits

 

 

 

 

 

 

 

 

 

 

(B)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heat/Cool Models

Kit No.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EQ08N11*

WIKQ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

LQVWDOOHGE\DTXDOL¿HGHOHFWULFLDQDQGFRQIRUPWR the National Electrical Code and all local codes

ZKLFK KDYH MXULVGLFWLRQ

)DLOXUH WR GR VR FDQ UHVXOW LQ SHUVRQDO LQMXU\ RU death.

NOTICE

FIRE HAZARD

1RW IROORZLQJ WKH DERYH :$51,1* FRXOG UHVXOW LQ ¿UH RU 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.

5HFHSWDFOH

 

7KH ¿HOG VXSSOLHG RXWOHW PXVW PDWFK SOXJ RQ VHUYLFH FRUG DQG EH ZLWKLQ UHDFK RI VHUYLFH FRUG

 

 

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.

7KHFRQVXPHU WKURXJKWKH$+$05RRP$LU&RQGLWLRQHU&HUWL¿FDWLRQ3URJUDP FDQ EH FHUWDLQ WKDW WKH $+$0 &HUWL¿FDWLRQ 6HDO DFFXUDWHO\ VWDWHV WKH XQLW¶V FRROLQJ DQG C US KHDWLQJ FDSDFLW\ UDWLQJ WKH DPSHUHV DQG WKH HQHUJ\ HI¿FLHQF\ UDWLR

*HACR: Heating Air Conditioning and Refrigeration

7

WARNING: Before Operating Your Unit

Make sure the wiring is adequate for your unit.

If you have fuses, they should be of the time delay type. Before you install or relocate this unit, be sure that the amperage rating of the circuit breaker or time delay fuse does not exceed the amp rating listed in Table 1.

DO NOT use an extension cord.

The cord provided will carry the proper amount of electrical power to the unit; an extension cord may not.

Make sure that the receptacle is compatible with the air conditioner cord plug provided.

This insures proper grounding. If you have a two prong receptacle you will need to have it replaced with a grounded receptacle by a certi¿ed electrician. The grounded receptacle should meet all national and local codes and ordinances. Under no circumstances should you remove the ground prong from the plug. You must use the three prong plug furnished with the air conditioner.

Test the power cord

All Friedrich room air conditioners are shipped from the factory with a Leakage Current Detection Interrupter (LCDI) equipped power cord. The LCDI device meets the UL and NEC requirements for cord connected air conditioners effective August 2004.

To test your power supply cord:

1.Plug power supply cord into a grounded 3 prong outlet.

2.Press RESET (See Figure 1).

3.Press TEST, listen for click; the RESET button trips and pops out.

4.Press and release RESET (Listen for click; RESET button latches and remains in). The power cord is ready for use.

Note: The LCDI device is not intended to be used as an ON/OFF switch.

Once plugged in, the unit will operate normally without the need to reset the LCDI device.

If the LCDI device fails to trip when tested or if the power supply cord is damaged, it must be replaced with a new power supply cord from the manufacturer. Contact our Technical Assistance Line at (800) 541-6645.To expedite service, please have your model number available.

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 oulet.

 

 

Failure to follow these instructions can result in

 

 

death, fire, or electrical shock.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CIRCUIT RATING

REQUIRED WALL

 

 

 

OR TIME DELAY

 

 

 

RECEPTACLE

 

 

 

 

 

MODEL

 

FUSE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AMP

VOLT

NEMA NO.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SQ05 SQ06

 

 

 

 

 

 

 

 

 

 

SQ08 SQ10

 

15

125

5-15P

 

 

 

 

 

 

 

 

 

 

 

 

 

EQ08

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 1.

Figure 1

RESET

TEST

WARNING:

TEST BEFORE EACH USE!

1.PRESS REST BUTTON.

2.PLUG LCDI INTO POWER RECEPTACLE.

3.PRESS TEST BUTTON, RESET BUTTON SHOULD POP UP.

4.PRESS RESET BUTTON FOR USE.

DO NOT USE IF ABOVE TEST

FAILS.

WHEN GREEN LIGHT IS ON.

IT IS WORKING

PROPERLY!

For the best cooling performance and highest energy efficiency

Keep the filter clean

Make sure that your air conditioner is always in top performing condition by cleaning the filter regularly.

Provide good air flow

Make sure the airflow to and from the unit is clear. Your air conditioner puts the conditioned air out at the top of the unit, and takes in unconditioned air at the bottom. Airflow is critical to good operation. It is just as important on the outside of the building that the airflow around the unit exterior is not blocked.

Insulation

Good insulation will be a big help in maintaining desirable comfort levels. Doors should have weather stripping. Be sure to caulk around doors and windows.

Proper installation of chassis seal gasket

Make sure the seal gasket has been installed properly to minimize noise and improve efficiency. If the chassis seal gasket has not been installed, please refer to Step 14 of the installation instructions.

Unit placement

If your air conditioner can be placed in a window or wall that is shaded by a tree or another building, the unit will operate even more efficiently. Using drapes or blinds on the sunny side of the dwelling will also add to your unit’s efficiency.

8

Kuhl Q Control Panel Operation

Let’s check out how to control your air conditioner. On the control panel, just above the POWER , is a liquid crystal display (LCD). All of the control panel function buttons and mode icons can be viewed in Figure 6.

Power On – Press the button to turn on the air conditioner. The power button illuminates to indicate that the power is on. The backlight on the power switch will automatically dim to 20% intensity after 15 seconds of inactivity. The remote control can also be used to turn power ON / OFF (See Remote Control).

Display – The display is a high ef¿ciency LCD with abuilt-inwhite backlight. The backlight has an automatic two (2) step dim function. After 15 seconds of inactivity, the display dims to 20% intensity. After an additional 120 seconds, the display switches off. Touching any button automatically changes the display to full brightness.

There are three control push buttons on each side of the display.

Figure 2

 

FAN

CONTROL

 

 

COOL

HEAT

ONLY

LOCKED

 

WI-FI

 

 

 

 

 

OPERATING (if equipped)

SYSTEM:

 

 

 

 

TEMPERATURE:

Cycles between

 

 

 

 

 

 

 

 

Increment UP

HEAT, COOL or

 

 

 

 

 

 

 

 

 

FAN ONLY

 

 

 

 

WAIT

 

 

 

 

 

 

 

 

 

 

COMPRESSOR

FAN MODE:

 

 

 

 

3 MINUTES

 

 

 

C

TIME DELAY

Sets fan to either:

 

 

 

 

TEMPERATURE:

- Cycle automatically

 

 

 

 

- Run continuously

 

 

 

ON OFF

Increment DOWN

 

 

 

 

SCHEDULE

SCHEDULE ON

 

 

 

CHECK $MART

 

 

 

 

 

 

 

 

 

FILTER

 

 

 

 

 

 

 

TIMER / SCHEDULE

FAN SPEED:

 

 

 

 

Turns ON or OFF

 

 

 

 

 

Sets fan speed:

 

 

 

 

 

LOW, MED, HIGH

 

 

 

 

TIMER ON

or AUTO

 

 

 

 

 

 

 

 

 

(as equipped)

 

 

 

 

 

 

 

 

 

 

IR WINDOW:

ON / OFF:

 

 

 

 

Do not block

 

 

 

 

 

Turns unit on/off

 

 

 

 

 

 

 

 

FILTER

 

2 DIGIT DISPLAY

 

 

 

Check / Clean

 

Shows Setting for:

 

AUTO SPEED

 

 

- Set Point (Temperature)

 

 

 

- Room Temperature

 

Automatically selects

 

- Clock (AM/PM)

 

best fan cooling or heating speed

 

FAN SPEED

 

 

SMART OPERATING

Selected fan speed

 

 

(see page 10)

8

Kühl Control Options

The Kühl gives you a variety of options for control, programming, and scheduling including wireless capabilities

Wireless Programming and Control:

The new FriedrichLink™ Adapter (sold seperately) allows you to conviently control, program and monitor your air conditioning unit remotely from a smartphone or computer.

FriedrichLink™ Adapter accessory available through Friedrich authorized retailers or www.friedrich.com. See FriedrichLink™ Adapter section on www.friedrich.com for complete details.

Pre-ProgrammedScheduling Options:

Your unit’s digital control comes equipped with a 24-hourtimer and two preprogrammed7-dayenergy management options.

24-HourTimer

The 24-hourtimer allows you to turn the unit off and on atpre-settimes by setting an on and off time on the unit control panel. (See page 11 for details on timerset-up.)

Pre-programmedEnergy Management

Your unit comes from the factory with two (2) Pre-programmedEnergy Management settings are shown in Addendum 1 (Residential & Commercial Schedule Table).

Energy Management Schedule Options are:

1.Residential Schedule – 40 Hr. Work Week

2.Commercial Schedule – 5-DayBusiness Week

The “Residential” (40 Hr. Work Week) Schedule has four (4) time periods: 06:00, 08:00, 18:00, and 22:00. This option will cause your Kühl Q unit to raise the room temperature temporarily to 85°F during the hours when most people are away at work, lower them again to 78°F prior to the time when most people will return home, and then raise slightly to 82°F to maintain a comfortable temperature overnight.

The “Commercial” (5-DayBusiness Week) Schedule has two (2) time periods: 07:00 and 18:00. This option will cause your air conditioner to raise temperatures to 84°F after typical working hours and on weekends when commercial spaces are typically unoccupied.

(See Control Panel Operation Instructions Section)

Customizable Programming Options:

Customizable schedules, with up to four temperature adjustments per day, can either be uploaded to the unit via the air conditioner’s built-inmicro USB interface or conveniently transmitted wirelessly using the new FriedrichLink™ Adapter accessory, greatly simplifying the programming of one or multiple units.

See Figure 7.

See www.friedrich.com for complete Customizable Programming instructions.

Smart Grid

The Kuhl Unit is also able to be controlled by a Smart Grid.

Smart Grid is a network that brings electricity from power stations to consumers using new technologies that allow power companies to adjust electrical loads of residential users. Check with your local electric company to learn more about Smart Grid programs in your area.

Figure 3

FRR203

10

FAN
MODE

Control Panel Operation Instructions

SYSTEM - TheSYSTEM button allows you to sequentially select three modes of operation. To select, press once and let go.

COOL MODE

HEAT MODE Not available on some models FAN ONLY MODE

COOL MODE

FRR103

HEAT MODE

FRR104

FAN ONLY MODE

FRR105

FAN MODE – Thebutton allows you to select betweenAUTO FAN andCONTINUOUS modes. To select, press once and let go.

F

AUTO FAN

SET POINT

FRR112

When in the AUTO FAN mode, the fan operates only when the system has a demand to cool or heat the room. Note: the fan is off (no fan speed icon), indicating no command for cooling or heating.

AUTO FAN (Cooling Demand)

F

AUTO FAN

SET POINT

FRR106

System has a demand for cooling. The fan is operating at a medium speed.

CONTINUOUS

F

CONTINUOUS

SET POINT

FRR113

In the CONTINUOUS fan mode, the fan operates all the time. The system periodically cools or heats the fan's airÀow but the Àow of air does not stop.

When in the SYSTEM COOL or HEATor FAN ONLYmode, you can also select FAN MODE, FAN SPEED, TIMER SCHEDULE,and

. The SYSTEM MODE does not change.

FAN SPEED - The

3 Speed

FAN

SPEED

button allows you to toggle between four modes of operation: LOW, MEDIUM, HIGH and AUTO. Press once and let go each time.

AUTO

FRR095

During the (SYSTEM mode COOL or HEAT), the fan speed automatically varies depending on the difference between the unit's set point on the control panel and the actual room temperature. Let me explain. Say for example, you’re working in your garage and you open the big door for several minutes. The system will sense a wide difference between the set point and the actual room temperature. When this occurs, the system fan speed increases to HIGH for a period of time. The fan speed decreases, in step, as the temperature difference decreases. When the room temperature matches the system's set point, fan speed returns to the lowest setting, and if the fan mode is on AUTO FAN, the fan will stop.

11

UPand DOWN - arrows - Pressing eitherorbutton changes the system's set point (desired room temperature). These buttons are also used for setting the Timer and other programming.

F

AUTO FAN

SET POINT

FRR100

F

AUTO FAN

SET POINT

FRR101

One press equals 1 degree of change. Holding the button down for more than 0.6 seconds starts the fast increment/decrement change of the set point.

TIMER SCHEDULE BUTTON -

TIMER

 

 

 

 

 

 

 

 

The SCHEDULE button has two main uses:

 

 

 

1.Used to preselect a TIMER

 

 

or SCHEDULE

function. (For

 

 

pre-selectioninstructions, please see page 14.)

 

 

 

2. Used to turn on or activate the pre-selectedTIMER

 

or

 

 

 

 

 

SCHEDULE

.

 

 

TIMER

 

 

 

 

 

 

 

 

 

 

3. To turn on your pre-selction,press theSCHEDULE button once and let

go. The display at bottom right will show the TIMER

icon

 

or

 

SCHEDULE icon

.

 

 

 

 

 

 

 

Example:

 

 

 

 

 

 

 

 

TIMER is turned ON

SCHEDULE is turned ON

 

 

 

TIMER (FACTORY DEFAULT) - The TIMERis the default on new units. The TIMERfunction allows you to turn the unit one time ON and one time OFF daily at the times that you select. For example, you can command the system to turn ON at 8:15 am and to turn OFF at 1:30 pm everyday. (To set the timer, see pages 15-16.)

SCHEDULE- The SCHEDULEhas two options with factorypre-programmedenergy management settings: temperature, system and time settings (see addendum) (for more information, see page 14).

Schedule options are:

1.Residential Schedule - 40 hour work week

2.Commercial Schedule - 5 day business week (These factorypre-programmedsettings can only be

changed by using the WiFi FriedrichLink™ adaptor, with which you can create your own custum program. See page 10.)

ºF - ºC Select

F

AUTO FAN

SET POINT

FRR132

To switch from degrees Fahrenheit (F) to Celsius (C), press andbuttons simultaneously for three seconds.

FRR133

An “F” will flash for 5 seconds and then revert to a normal display. To change from F to C, press the orbutton within 5 seconds.

FRR134

A “C” will Àash for 5 seconds and then revert to a normal display.

C

AUTO FAN

SET POINT

FRR135

The ºF icon goes away and the ºC icon illuminates on the normal display.

12

DIM Function

There are three separate display brightness levels, AUTO, 20% and full (100%). To change the DIM setting, press the Power button for three seconds.

FRR192

The 1 indicates a DIM setting of Auto (factory default on new units). Use the orbuttons to change the setting.

FRR193

The 2 indicates a DIM setting of 20%. Press the TIMER SET button within 15 seconds to save the setting. Button inactivity for more than 15 seconds causes the display to time out and return to the normal operating display.

FRR194

The 3 indicates a DIM setting of 100% (full brightness). Press the TIMER SET (Refer to Figure 8) button within 15 seconds to save the setting. Button inactivity for more than 15 seconds causes the display to time out and return to the normal operating display.

Alerts

When the ¿lter needs to be cleaned or replaced, the CHECKFILTER icon displays.

F

AUTO FAN

SET POINT

CHECK

FILTER

 

 

 

FRR118

The alert can be dismissed by pressing the

 

MODE and

SCHEDULE

for 3 seconds.

 

FAN

TIMER

 

Wait Icon

F

AUTO FAN

SET POINT

FRR120

The wait icon illuminates when the compressor lockout is active.

Control Panel Lock

To lock the front panel controls, press and hold the SPEED +

SCHEDULE buttons

 

FAN

TIMER

for 3 seconds. The lock icon

illuminates to indicate the locked status.

During lockout, none of the control panel buttons will operate.

F

AUTO FAN

SET POINT

To unlock, press and hold the SPEED +

FRR116

SCHEDULE buttons simultaneously for 3

FAN

TIMER

seconds.

 

External Control Status

The $MART icon illuminates to indicate that the system is being controlled

remotely, such as from a smart grid from a power company (for more information, see page 12).

SMART

F

AUTO FAN

SET POINT

$MART

FRR125

WiFi Connection

F

AUTO FAN

SET POINT

FRR126

The icon illuminates to indicate that the system is receiving aWi-Ficonnection (for more information, see page 10).

13

TIMER OR SCHEDULE OPTIONS 1 OR 2 SELECTION

The control system has one Timer and two Schedule functions:

A.Timer (factory default) - Allows you to command the unit to turn ON and OFF at a time you program. Setting the start, stop and day can be found latter in this manual on page 15.

B.Residential Schedule - When selection #1 is selected, the unit follows apre-programmedset of operational parameters that covers 7 days of the week with 4 time windows during each day. Each time window has it's own set of 8 operating parameters. Refer to Addendum 1.

C.Commercial Schedule - When selection #2 is selected, the unit follows apre-programmedset of operational parameters that covers 7 days of the week with 2 time windows during each day. Each time window has it's own set of 8 operating parameters. Refer to Addendum 1.

To change the TIMER/SCHEDULE selection, press and hold the

 

SCHEDULE

 

 

 

 

 

 

 

 

TIMER

button for 3 sec, then let go.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FRR139

The display shows the TIMER is selected. Press the button once and let go.

SCHEDULE

FRR137

The display shows option 1 (Residential Schedule) is selected. Press the button once and let go.

SCHEDULE

FRR138

The display shows option 2 (Commercial Schedule) is selected.

To save and exit selection, press the TIMER SET button (Figure 4, Page 15).

F

AUTO FAN

SET POINT

FRR136

The display reverts to the normal display.

NOTE: The schedule options 1 and 2 have factorypre-programmedsettings which can only be changed by using the WiFi FriedrichLink™ adaptor (an accessory). With it, you can create your own custom schedule program. See page 10 for more information.

NOTE: Once you have selected the TIMERyou must first set the following before turning it on.

1.Set time and day

2.Set start time

3.Set stop time

See timer settings on next page.

To Turn On the Timer or Schedule Selected

FRR139

Press the TIMER button and let go. The system will operate in the mode

SCHEDULE

mode option (1, 2 or Timer) you selected. At the above image, TIMER is selected and turned on.

14

TIMER SETTINGS

1.Set time and day

2.Set start time

3.Set stop time

Figure 4

 

 

TIMER

HOUR

MIN

SET

 

 

FRIEDRICH

 

 

AIR CONDITIONING CO.

 

 

SAN ANTONIO, TX

 

 

 

 

FRR097

SET TIME AND DAY - To adjust the unit's time press and hold the HOUR and the MIN buttons for three seconds (Refer to Figure 4).

AM

FRR128

The unit's current hour displays. Use the orbuttons to adjust the hour. To change from AM to PM continue to increment (roll) the display. Press TIMER SET (Refer to Figure 4) button to save the hour and display the unit’s current minutes.

FRR129

Use the orbuttons to adjust the minutes. The clock is now set for 11:25 AM. Press TIMER SET (Refer to Figure 4) button to display the unit's day setting.

FRR130

F

AUTO FAN

SET POINT

FRR131

Press TIMER SET (Refer to Figure 4) button to exit and save the SET TIME function. The TIMER SET button must be pressed within 15 second. Button inactivity for more than 15 seconds causes the display to time out and return to the normal operating display.

Timer Start Time

F

AUTO FAN

SET POINT

FRR140

The display shows a normal system. Press and hold the HOUR button (Figure 4) for 3 seconds. Note: The Timer start-stoptimes may be set even when the system is in the Timer or Schedule mode.

AM

ON

FRR141

Use the orbutton to adjust the hour. Press the TIMER SET button (Figure 4) to adjust the minutes.

ON

FRR142

Use the orbutton to adjust the minutes. Press the TIMER SET button (Figure 4) within 15 seconds to exit and save the setting. The timer is now set to start at 4:21 AM.

The display will return to normal.

Use the orbuttons to adjust the day (1 to 7). The day setting is up

to the user. If you set the current day = 1. So if today is Tuesday, then

 

Day 1 = Tuesday, select 1.

15

 

Set theTimer Stop Time

F

AUTO FAN

SET POINT

FRR144

The display shows a normal system. Press and hold the MIN button (Figure 4) for 3 seconds. Note the Timer start - stop times may be set even when the system is in the Schedule mode.

AM

OFF

FRR145

Use the orbutton to adjust the hour. Press the TIMER SET button (Figure 4) to advance to the Minutes section.

OFF

FRR146

Use the orbutton to adjust the minutes. Press the TIMER SET button (Figure 4) within 15 seconds to exit and save the setting. The timer is now set to stop at 11:55 AM. The display returns to normal.

Turning the TIMER ON once the time and day, the start and top times have been set:

TIMER

Press the SCHEDULE button once and let go.

NOTE: See the following TIMERON/OFF scenarios.

Timer ON Scenarios

Scenario 1

F

AUTO FAN

SET POINT

FRR156

The display shows a normal operating system.

FRR157

If the Timer function is turned ON during the Timer’s OFF time, the icon illuminates. The control system immediately turns the unit OFF.

Scenario 2

F

AUTO FAN

SET POINT

FRR158

The display shows a normal operating system.

F

AUTO FAN

SET POINT

FRR159

If the Timer function is turned ON during the Timer’s ON time, the icon illuminates. The control system immediately turns the unit OFF.

16

Timer OFF Scenarios

Scenario 1

FRR166

The display shows the unit in Timer mode during an in-active(OFF) period.

F

AUTO FAN

SET POINT

FRR167

If the Timer function is turned OFF during an in-active(OFF) period, the Timericon turns off. The display shows a normal system.

Scenario 2

F

AUTO FAN

SET POINT

FRR168

The display shows the unit in Timer mode during an active (ON) period.

F

AUTO FAN

SET POINT

FRR169

If the Timer function is turned OFF during the ON time. The Timer icon turns off. The control stays in the current state.

The display shows a normal system.

Timer - Schedule Control Block

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AUTO FAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SET POINT

SCHEDULE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FRR148

If the unit is operating in the TIMER or SCHEDULE mode, and you press

any bytton except the TIMER button, the TIMERicon begins to

SCHEDULE

blink. All button action is blocked.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AUTO FAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SET POINT

SCHEDULE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FRR149

The TIMER icon stops blinking after 3 seconds. You must turn the active TIMER or SCHEDULE mode OFF before making changes. Once

the changes are made, press the TIMER button tore-activateTIMER

SCHEDULE

or SCHEDULE mode.

If the unit is operating in the TIMER or SCHEDULE mode, and then you

press any button except the TIMER button, the TIMERicon begins

SCHEDULE

to blink.

F

AUTO FAN

SET POINT

FRR150

All button action is blocked.

17

AUTO FAN
AUTO FAN

Remote Control Operation

Remote Control - Refer to Figures 10 and 11 during operation description.

Getting Started - Install two (2) AAA batteries in the battery compartment located on the back of the unit.

Operation - The remote control should be within 25 feet of the air conditioner for operation. (Refer to Figure 9 for effectiveness). Press the power button to turn the remote on. The remote will automatically power off after 15 seconds if the buttons are not being pressed. The remote must be on to control the unit.

POWER Button - Turns remote and unit on and off.

SYSTEM Button - Allows the user to sequentially select, Cool, HEAT, and FAN ONLYoperation. When the button is pressed, the display indicates which mode has been selected via a display message. Note that when the heating function is not available, the system will automatically skip the HEAT mode.

FAN MODE Button - Selects between automatic () orCONTINUOUS operation. In themode, the fan only turns on and off when the compressor operates or the heat function is active.

NOTE:

 

 

is not available in the FAN ONLY Mode, the display

AUTO FAN

 

indicates

 

CONTINUOUS

. In the

CONTINUOUS

mode, fan speed is

determined

by your

selection on the SPEEDFAN

button.

FAN SPEED Button - Used to sequentially select new fan speed, plus

AUTO operation. When the SPEEDFAN button is pressed, the fan speed icon (triangle) changes to indicate the new speed level. Fan speed automatically

varies depending on the set temperature on the control panel and the actual room temperature. For example if there is a big difference between your set temperature and the actual room temperature, the system fan speed increases to HIGH. It remains at this speed until the room temperature matches the set temperature.

TIMER/SCHEDULE Button – TheTIMER button turns the schedule function

SCHEDULE

on and off. Press the SCHEDULE button once to turn on the Schedule

(Residential, Commercial, Timer or Customized. that has already been pre-programmedinto your unit. Pressing theSCHEDULE button a second time turns the schedule function off.

UP and DOWN Arrows - Pressing either the(UP) or(DOWN) button changes the desired room temperature. The factory preset lower and upper limits are 60°F (16°C) and 99°F (37°C). These buttons are also used to navigate between function options when using the User Menu or Maintenance Mode.

Remote Effectiveness

Hand Held Remote - Has an operating range of up to 25 ft. The infrared remote control signal must have a clear path to transmit the command to the air conditioning unit. The remote signal has some ability to "bounce" off of walls and furniture similar to a television remote control. The diagram below shows the typical operating range of the control in a standard room with 8 ft high ceilings.

Figure 9

 

 

 

 

TOP VIEW

 

 

 

 

 

 

 

 

25ft

 

 

 

 

 

25ft

 

 

 

7.5ft

 

 

 

 

SIDE VIEW

 

 

4ft

60°

60°

 

45°

30°

 

6ft

 

 

 

 

 

 

 

 

 

 

60°

 

8ft

45°

45°

 

 

 

 

 

 

25ft

 

 

 

60°

45°

 

30°

30°

 

 

 

 

 

 

30°

 

 

 

 

 

 

 

16ft

 

8ft

 

 

 

 

 

 

 

25ft

 

 

 

 

 

25ft

 

25ft

 

 

 

25ft

 

25ft

 

 

 

 

 

 

 

 

 

 

FRR080

18

Figure 10

AUTO FAN CONTINUOUS

88

DISPLAY

 

AUTO

C F

SYSTEM

FAN MODE

SYSTEM

FAN MODE

POWER

TEMPERATURE UP

FAN SPEED

POWER

FAN SPEED SCHEDULE

TEMPERATURE DOWN

SCHEDULE

FRR081

Figure 11

COOL

HEAT

FAN ONLY

ICON

ICON

ICON

SYSTEM

MODE

FAN

MODE

FAN

SPEED

AUTO FAN 88

CONTINUOUS

AUTO

C F

°F / °C ICONs

SCHEDULE

ICON

FRR082

ELECTRONIC CONTROL SEQUENCE OF OPERATION

Cooling Mode

prior to the compressor. Once the ambient temperature has been lowered to .25 ÛF below the set point, the cooling cycle starts to terminate by shutting off the compressor. After a 30 seconds delay, the fan is shut off.

(See figure below for graphic details)

Electric Heat Operation in Cool with Electric Heat Units

When in the Heat mode, with and without Fan Mode Auto (Fan cycling):

If the indoor ambient temperature is below the Heat Demand Threshold (Heat Set Point minus 1.5 ÛF), turn on electric heat. If Ambient is 0.3 ÛF above the Heat Set Point turn off the electric heat.

20

ELECTRONIC CONTROL SEQUENCE OF OPERATION (CONT.)

Compressor Lock Out Time

The lockout feature ensures that the compressor is de-energizedfor a period of time. The timer varies randomly from 180 to 240 seconds

The compressor lockout is initiated every time the compressor is “off” due to:

(1)Satisfying the temperature set point

(2)Changing mode to fan only or heat

(3)Turning the unit off

(5)Line power is restored from a brown out condition

Wait ICON (Hour Glass )

The wait icon will be turned on when the compressor is locked out and during demand for cooling or heat pump compressor operation. The Wait ICON will be turned off when the condition clears.

Cooling Fan Delay

Fan cycle/Auto mode only

When unit cycles cooling ON – starts the fan 5 seconds EARLY. When unit cycles cooling OFF – DELAYS the fan off for 30 seconds

Note: this fan delay is disabled during Test Mode

Heating Fan Delay

This is only for fan Mode Auto (Fan cycles with cool/heat operation) and not for continuous fan mode. When unit cycles Heating ON – starts the fan 5 seconds EARLY. When unit cycles Heating OFF – DELAYS the fan off for 15 seconds

Note: the fan delay is disabled during Test Mode

Fan Speed Change Delay

Relay activation is delayed by a minimum number of seconds. The default for this value is 2 seconds and is used to eliminate relay chatter.

Fan Only System Mode

Only the Fan is turned on. Cool or Heat operation are off.

(This is different than FAN MODE CONTINUOUS where the fan is on with the cool or heat operation).

Fan Only Rules

1.If the SYSTEM FAN ONLY MODE is selected, the Auto fan mode is disabled, and the fan mode is forced to continuous. In addition, the auto fan speed is disabled. If the user presses the fan speed key, the menu will skip over the auto selection. The set point temperature display is off.

2.Any fan speed may be manually selected during Fan Only Mode.

21

COMPONENTS TESTING

Testing the User Interface and Relay Board

WARNING

ELECTRIC SHOCK HAZARD

Turn off electric power before inspections, maintenances, or service.

Failure to do so could result in serious injury or death.

If the user interface does not turn on:

1.Unplug unit, remove the User Interface.

2.Replug power cord and make sure the unit has the proper voltage and that is is turned on.

3.Reconnect the user interface’s wire harness. (Ensure it is in good condition.)

4.Using a voltmeter, check for 5VDC at plug - see Image #2 and #3.

5.For room temperature thermistor’s voltage test, see Image #2.

User Interface Tests

Front

Room Temperature Thermistor

Voltage Test

Ensure there is 5 VDC at User

Interface (see Image 3).

Image 1

Back

Check here for 3.3VDC. If no

voltage or wrong voltage, replace

the User Interface.

Not used.

Image 2

+ -

User Interface Voltage Test

Check here for 5VDC. If no voltage or wrong voltage, replace relay board. If voltage is OK, replace User Interface.

Image 3

Relay Board Test

Front

Image 4

Test for 5VDC. If no voltage or wrong voltage, replace relay board.

+-

Image 5

-+

22

COMPONENTS TESTING (CON’T)

Testing the Relay Board

 

 

Heat Relay

 

Fuse

For Heat & Cool Units

L1

T 3.15AH 250 Volts AC

Goes Here

LN

Fan

High Speed

Fan

Med Speed

Fan

Low Speed

Indoor Coil

Outdoor Coil

Thermistor

Thermistor

Test for 3.3VDC. If incorrect or no voltage, replace electronic relay board. If voltage OK, check thermistor’s resistance value (See page 56).

+ -

Test here for 5VDC. If no voltage or wrong voltage, replace relay board.

23

COMPONENTS TESTING (Continued)

FAN MOTOR

A single phase permanent split capacitor motor is used to drive the evaporator blower and condenser fan. A self-resettingoverload is located inside the motor to protect against high temperature and high amperage conditions. (See Figure 23)

WARNING

ELECTRIC SHOCK HAZARD

Disconnect power to the unit before servicing. Failure to follow this warning could result in serious injury or death.

BLOWER/FAN MOTOR - TEST

1.Determine that capacitor is serviceable.

2.Disconnect fan motor wires from fan speed switch or system switch.

3.Apply “live” test cord probes on black wire and common terminal of capacitor. Motor should run at high speed.

Many motor capacitors are internally fused. Shorting the terminals will blow the fuse, ruining the capacitor. A 20,000 ohm 2 watt resistor can be used to discharge capacitors safely. Remove wires from capacitor and place resistor across terminals. When checking a dual capacitor with a capacitor analyzer or ohmmeter, both sides must be tested.

Capacitor Check with Capacitor Analyzer

The capacitor analyzer will show whether the capacitor is “open” or “shorted.” It will tell whether the capacitor is within its micro farads rating and it will show whether the capacitor is operating at the proper power-factorpercentage. The instrument will automatically discharge the capacitor when the test switch is released.

Capacitor Connections

The starting winding of a motor can be damaged by a shorted and grounded running capacitor. This damage usually can be avoided by proper connection of the running capacitor terminals.

4.Apply “live” test cord probes on red wire and common From the supply line on a typical 230 volt circuit, a 115 volt terminal of capacitor. Motor should run at low speed. potential exists from the “R” terminal to ground through a

5.Apply “live” test cord probes on each of the remaining wires from the speed switch or system switch to test intermediate speeds. If the control is in the “MoneySaver” mode and the thermostat calls for cooling, the fan will start - then stop after approximately 2 minutes; then the fan and compressor will start together approximately 2 minutes later.

Figure 23

Blower/Fan Motor

CAPACITORS

WARNING

ELECTRIC SHOCK HAZARD

Turn off electric power before servicing. Discharge capacitor with a 20,000 Ohm 2 Watt resistor before handling.

)DLOXUH WR GR VR PD\ UHVXOW LQ SHUVRQDO LQMXU\ or death.

possible short in the capacitor. However, from the “S” or start terminal, a much higher potential, possibly as high as 400 volts, exists because of the counter EMF generated in the start winding. Therefore, the possibility of capacitor failure

LV PXFK JUHDWHU ZKHQ WKH LGHQWL¿HG WHUPLQDO LV FRQQHFWHG WR WKH ³6´ RU VWDUW WHUPLQDO 7KH LGHQWL¿HG WHUPLQDO VKRXOG always be connected to the supply line, or “R” terminal, never to the “S” terminal.

When connected properly, a shorted or grounded running capacitor will result in a direct short to ground from the “R” terminal and will blow the line fuse. The motor protector will protect the main winding from excessive temperature.

Dual Rated Run Capacitor Hook-up

FIGURE 24

24

COMPONENTS TESTING (Continued)

HEATING ELEMENT (See Figure)

All electric heat models are equipped with a heating element. The EQ08 has a 1.15 KW element.

Figure

Heating Element

The heating element contains a fuse link and a heater limit switch. The fuse link is in series with the power supply and will open and interrupt the power when the temperature UHDFKHV °F or a short circuit occurs in the heating element. Once the fuse link separates, a new fuse link must be installed.

NOTE: Always replace with the exact replacement.

The heater element has a high limit control. This control is a bimetal thermostat mounted in the top of the heating element.

6KRXOG WKH IDQ PRWRU IDLO RU ¿OWHU EHFRPH FORJJHG WKH KLJK limit control will open and interrupt power to the heater before reaching an unsafe temperature condition.

The control is designed to open at 110°F ±6°F. Test continuity below 110°F.

TESTING THE HEATING ELEMENT

WARNING

ELECTRIC SHOCK HAZARD

Disconnect power to the unit before servicing. Failure to follow this warning

FRXOG UHVXOW LQ VHULRXV LQMXU\ RU GHDWK

Testing of the elements can be made with an ohmmeter across the terminals after the connecting wires have been removed. A cold resistance reading of approximately 10.11 ohms for the 1.15 KW heater should be registered.

DRAIN PAN VALVE

During the cooling mode of operation, condensate which collects in the drain pan is picked up by the condenser fan blade and sprayed onto the condenser coil. This assists in cooling the refrigerant plus evaporating the water.

During the heating mode of operation, it is necessary that water be removed to prevent it from freezing during cold outside temperatures. This could cause the condenser fan blade to freeze in the accumulated water and prevent it from turning.

To provide a means of draining this water, a bellows type drain valve is installed over a drain opening in the base pan.

This valve is temperature sensitive and will open when the outside temperature reaches 40°F. The valve will close gradually as the temperature rises above 40°F to fully close at 60°F.

Figure 26

Bellows Assembly

Drain Pan

For EQ08N11 Only

25

REFRIGERATION SEQUENCE OF OPERATION

A good understanding of the basic operation of the refrigeration system is essential for the service technician. Without this understanding, accurate troubleshooting of

UHIULJHUDWLRQ V\VWHP SUREOHPV ZLOO EH PRUH GLI¿FXOW DQG WLPH consuming, if not (in some cases) entirely impossible. The refrigeration system uses four basic principles (laws) in its operation they are as follows:

³+HDW DOZD\V ÀRZV IURP D ZDUPHU ERG\ WR D FRROHU ERG\ ´

2.“Heat must be added to or removed from a substance before a change in state can occur”

3.“Flow is always from a higher pressure area to a lower pressure area.”

4.“The temperature at which a liquid or gas changes state is dependent upon the pressure.”

The refrigeration cycle begins at the compressor. Starting the compressor creates a low pressure in the suction line which draws refrigerant gas (vapor) into the compressor. The compressor then “compresses” this refrigerant, raising its pressure and its (heat intensity) temperature.

The refrigerant leaves the compressor through the discharge Line as a hot High pressure gas (vapor). The refrigerant enters the condenser coil where it gives up some of its

KHDW 7KH FRQGHQVHU IDQ PRYLQJ DLU DFURVV WKH FRLO¶V ¿QQHG surface facilitates the transfer of heat from the refrigerant to the relatively cooler outdoor air.

:KHQ D VXI¿FLHQW TXDQWLW\ RI KHDW KDV EHHQ UHPRYHG IURP the refrigerant gas (vapor), the refrigerant will “condense” (i.e. change to a liquid). Once the refrigerant has been condensed (changed) to a liquid it is cooled even further by

WKH DLU WKDW FRQWLQXHV WR ÀRZ DFURVV WKH FRQGHQVHU FRLO

The RAC design determines at exactly what point (in the condenser) the change of state (i.e. gas to a liquid) takes place. In all cases, however, the refrigerant must be totally condensed (changed) to a Liquid before leaving the condenser coil.

The refrigerant leaves the condenser Coil through the liquid line as a warm high pressure liquid. It next will pass through the refrigerant drier (if so equipped). It is the function of the drier to trap any moisture present in the system, contaminants, and large particulate matter.

The liquid refrigerant next enters the metering device. The metering device is a capillary tube. The purpose of the metering device is to “meter” (i.e. control or measure) the quantity of refrigerant entering the evaporator coil.

In the case of the capillary tube this is accomplished (by design) through size (and length) of device, and the pressure difference present across the device.

Since the evaporator coil is under a lower pressure (due to the suction created by the compressor) than the liquid line, the liquid refrigerant leaves the metering device entering the evaporator coil. As it enters the evaporator coil, the larger area and lower pressure allows the refrigerant to expand and lower its temperature (heat intensity). This expansion is often referred to as “boiling”. Since the unit’s blower is moving

LQGRRU DLU DFURVV WKH ¿QQHG VXUIDFH RI WKH HYDSRUDWRU FRLO the expanding refrigerant absorbs some of that heat. This results in a lowering of the indoor air temperature, hence the “cooling” effect.

The expansion and absorbing of heat cause the liquid refrigerant to evaporate (i.e. change to a gas). Once the refrigerant has been evaporated (changed to a gas), it is

KHDWHG HYHQ IXUWKHU E\ WKH DLU WKDW FRQWLQXHV WR ÀRZ DFURVV the evaporator coil.

The particular system design determines at exactly what point (in the evaporator) the change of state (i.e. liquid to a gas) takes place. In all cases, however, the refrigerant must be totally evaporated (changed) to a gas before leaving the evaporator coil.

The low pressure (suction) created by the compressor causes the refrigerant to leave the evaporator through the suction line as a cool low pressure vapor. The refrigerant then returns to the compressor, where the cycle is repeated.

Suction

Discharge

Line

Line

Evaporator

Condenser

Coil

Coil

 

Metering

Compressor

 

Device

 

Refrigerant Drier Liquid

Refrigerant Line

Strainer

26

R-410ASEALED SYSTEM REPAIR CONSIDERATIONS

WARNING

Refrigeration system under high pressure

'RQRWSXQFWXUH KHDW H[SRVHWRÀDPHRULQFLQHUDWH

OQO\ FHUWL¿HG UHIULJHUDWLRQ WHFKQLFLDQV VKRXOG service this equipment.

R410A systems operate at higher pressures than R22 equipment. Appropriate safe service and handling practicces must be used.

Only use gauge sets designed for use with R410A. Do not use standard R22 gauge sets.

The following is a list of important considerations when working with R-410Aequipment

R-410Apressure is approximately 60% higher thanR-22pressure.

R-410Acylinders must not be allowed to exceed 125 F, they may leak or rupture.

R-410Amust never be pressurized with a mixture of air, it may become

ÀDPPDEOH

6HUYLFLQJ HTXLSPHQW DQG FRPSRQHQWV PXVW EH VSHFL¿FDOO\ GHVLJQHG IRU XVH ZLWK 5 $ DQG dedicated to prevent contamination.

Manifold sets must be equipped with gauges capable of reading 750 psig (high side) and 200 psig (low side), with a 500-psiglow-sideretard.

Gauge hoses must have a minimum 750-psigservice pressure rating

Recovery cylinders must have a minimum service pressure rating of 400 psig, (DOT 4BA400 and DOT BW400 approved cylinders).

POE (Polyol-Ester)lubricants must be used withR-410Aequipment.

To prevent moisture absorption and lubricant contamination, do not leave the refrigeration system open to the atmosphere longer than 1 hour.

Weigh-inthe refrigerant charge into the high side of the system.

Introduce liquid refrigerant charge into the high side of the system.

For low side pressure charging of R-410A,use a charging adaptor.

8VH )ULHGULFK DSSURYHG 5 $ ¿OWHU GU\HUV RQO\

27

R-410ASEALED REFRIGERATION SYSTEM REPAIRS

IMPORTANT

SEALED SYSTEM REPAIRS TO COOL-ONLYMODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER.

EQUIPMENT REQUIRED:

1.Voltmeter

2.Ammeter

3.Ohmmeter

4.E.P.A. Approved Refrigerant Recovery System

5.Vacuum Pump (capable of 200 microns or less vacuum.)

6.Acetylene Welder

7.Electronic Halogen Leak Detector capable of

GHWHFWLQJ +)& +\GURÀXRURFDUERQ UHIULJHUDQWV

8.Accurate refrigerant charge measuring device such as:

a.Balance Scales - 1/2 oz. accuracy

b.Charging Board - 1/2 oz. accuracy

+LJK 3UHVVXUH *DXJH WR OEV

10.Low Pressure Gauge - (-30to 200 lbs.)

11.Vacuum Gauge - (0 - 1000 microns)

)DFLOLWLHV IRU ÀRZLQJ QLWURJHQ WKURXJK UHIULJHUDWLRQ WXELQJ during all brazing processes.

EQUIPMENT MUST BE CAPABLE OF:

1.Recovering refrigerant to EPA required levels.

2.Evacuation from both the high side and low side of the system simultaneously.

3.Introducing refrigerant charge into high side of the system.

4.Accurately weighing the refrigerant charge introduced into the system.

WARNING

RISK OF ELECTRIC SHOCK

Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenances or service.

Failure to do so could result in electric shock,

VHULRXV LQMXU\ RU GHDWK

WARNING

HIGH PRESSURE HAZARD

Sealed Refrigeration System contains refrigerant and oil under high pressure.

Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants.

Failure to follow these procedures could

UHVXOW LQ VHULRXV LQMXU\ RU GHDWK

Proper refrigerant charge is essential to proper unit operation. Operating a unit with an improper refrigerant charge will

UHVXOW LQ UHGXFHG SHUIRUPDQFH FDSDFLW\ DQG RU HI¿FLHQF\

Accordingly, the use of proper charging methods during servicing will insure that the unit is functioning as designed and that its compressor will not be damaged.

7RR PXFK UHIULJHUDQW RYHUFKDUJH LQ WKH V\VWHP LV MXVW DV EDG

(if not worse) than not enough refrigerant (undercharge). They both can be the source of certain compressor failures if they remain uncorrected for any period of time. Quite often, other

SUREOHPV VXFK DV ORZ DLU ÀRZ DFURVV HYDSRUDWRU HWF DUH misdiagnosed as refrigerant charge problems. The refrigerant circuit diagnosis chart will assist you in properly diagnosing these systems.

An overcharged unit will at times return liquid refrigerant (slugging) back to the suction side of the compressor eventually causing a mechanical failure within the compressor. This mechanical failure can manifest itself as valve failure, bearing

IDLOXUH DQG RU RWKHU PHFKDQLFDO IDLOXUH 7KH VSHFL¿F W\SH RI IDLOXUH ZLOO EH LQÀXHQFHG E\ WKH DPRXQW RI OLTXLG EHLQJ UHWXUQHG and the length of time the slugging continues.

Refrigerant Charging

NOTE: Because the Kuhl Q system is a sealed system, service process tubes will have to be installed. First install a line tap and remove refrigerant from system. Make necessary sealed system repairs and vacuum system. Crimp process tube line and solder end shut. Do not leave a service valve in the sealed system.

Not enough refrigerant (undercharge) on the other hand, will cause the temperature of the suction gas to increase to

WKH SRLQW ZKHUH LW GRHV QRW SURYLGH VXI¿FLHQW FRROLQJ IRU WKH compressor motor. When this occurs, the motor winding temperature will increase causing the motor to overheat and possibly cycle open the compressor overload protector. Continued overheating of the motor windings and/or cycling of the overload will eventually lead to compressor motor or overload failure.

28

REFRIGERATION SEQUENCE OF OPERATION

A good understanding of the basic operation of the refrigeration system is essential for the service technician. Without this understanding, accurate troubleshooting of

UHIULJHUDWLRQ V\VWHP SUREOHPV ZLOO EH PRUH GLI¿FXOW DQG WLPH consuming, if not (in some cases) entirely impossible. The refrigeration system uses four basic principles (laws) in its operation they are as follows:

³+HDW DOZD\V ÀRZV IURP D ZDUPHU ERG\ WR D FRROHU ERG\ ´

2.“Heat must be added to or removed from a substance before a change in state can occur”

3.“Flow is always from a higher pressure area to a lower pressure area.”

4.“The temperature at which a liquid or gas changes state is dependent upon the pressure.”

The refrigeration cycle begins at the compressor. Starting the compressor creates a low pressure in the suction line which draws refrigerant gas (vapor) into the compressor. The compressor then “compresses” this refrigerant, raising its pressure and its (heat intensity) temperature.

The refrigerant leaves the compressor through the discharge Line as a hot High pressure gas (vapor). The refrigerant enters the condenser coil where it gives up some of its

KHDW 7KH FRQGHQVHU IDQ PRYLQJ DLU DFURVV WKH FRLO¶V ¿QQHG surface facilitates the transfer of heat from the refrigerant to the relatively cooler outdoor air.

:KHQ D VXI¿FLHQW TXDQWLW\ RI KHDW KDV EHHQ UHPRYHG IURP the refrigerant gas (vapor), the refrigerant will “condense” (i.e. change to a liquid). Once the refrigerant has been condensed (changed) to a liquid it is cooled even further by

WKH DLU WKDW FRQWLQXHV WR ÀRZ DFURVV WKH FRQGHQVHU FRLO

The RAC design determines at exactly what point (in the condenser) the change of state (i.e. gas to a liquid) takes place. In all cases, however, the refrigerant must be totally condensed (changed) to a Liquid before leaving the condenser coil.

The refrigerant leaves the condenser Coil through the liquid line as a warm high pressure liquid. It next will pass through the refrigerant drier (if so equipped). It is the function of the drier to trap any moisture present in the system, contaminants, and large particulate matter.

The liquid refrigerant next enters the metering device. The metering device is a capillary tube. The purpose of the metering device is to “meter” (i.e. control or measure) the quantity of refrigerant entering the evaporator coil.

In the case of the capillary tube this is accomplished (by design) through size (and length) of device, and the pressure difference present across the device.

Since the evaporator coil is under a lower pressure (due to the suction created by the compressor) than the liquid line, the liquid refrigerant leaves the metering device entering the evaporator coil. As it enters the evaporator coil, the larger area and lower pressure allows the refrigerant to expand and lower its temperature (heat intensity). This expansion is often referred to as “boiling”. Since the unit’s blower is moving

LQGRRU DLU DFURVV WKH ¿QQHG VXUIDFH RI WKH HYDSRUDWRU FRLO the expanding refrigerant absorbs some of that heat. This results in a lowering of the indoor air temperature, hence the “cooling” effect.

The expansion and absorbing of heat cause the liquid refrigerant to evaporate (i.e. change to a gas). Once the refrigerant has been evaporated (changed to a gas), it is

KHDWHG HYHQ IXUWKHU E\ WKH DLU WKDW FRQWLQXHV WR ÀRZ DFURVV the evaporator coil.

The particular system design determines at exactly what point (in the evaporator) the change of state (i.e. liquid to a gas) takes place. In all cases, however, the refrigerant must be totally evaporated (changed) to a gas before leaving the evaporator coil.

The low pressure (suction) created by the compressor causes the refrigerant to leave the evaporator through the suction line as a cool low pressure vapor. The refrigerant then returns to the compressor, where the cycle is repeated.

Suction

Discharge

Line

Line

Evaporator

Condenser

Coil

Coil

 

Metering

Compressor

 

Device

 

Refrigerant Drier Liquid

Refrigerant Line

Strainer

R-410ASEALED REFRIGERATION SYSTEM REPAIRS

IMPORTANT

SEALED SYSTEM REPAIRS TO COOL-ONLYMODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER.

EQUIPMENT REQUIRED:

1.Voltmeter

2.Ammeter

3.Ohmmeter

4.E.P.A. Approved Refrigerant Recovery System

5.Vacuum Pump (capable of 200 microns or less vacuum.)

6.Acetylene Welder

7.Electronic Halogen Leak Detector capable of

GHWHFWLQJ +)& +\GURÀXRURFDUERQ UHIULJHUDQWV

8.Accurate refrigerant charge measuring device such as:

a.Balance Scales - 1/2 oz. accuracy

b.Charging Board - 1/2 oz. accuracy

+LJK 3UHVVXUH *DXJH WR OEV

10.Low Pressure Gauge - (-30to 200 lbs.)

11.Vacuum Gauge - (0 - 1000 microns)

)DFLOLWLHV IRU ÀRZLQJ QLWURJHQ WKURXJK UHIULJHUDWLRQ WXELQJ during all brazing processes.

EQUIPMENT MUST BE CAPABLE OF:

1.Recovering refrigerant to EPA required levels.

2.Evacuation from both the high side and low side of the system simultaneously.

3.Introducing refrigerant charge into high side of the system.

4.Accurately weighing the refrigerant charge introduced into the system.

WARNING

RISK OF ELECTRIC SHOCK

Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenances or service.

Failure to do so could result in electric shock,

VHULRXV LQMXU\ RU GHDWK

WARNING

HIGH PRESSURE HAZARD

Sealed Refrigeration System contains refrigerant and oil under high pressure.

Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants.

Failure to follow these procedures could

UHVXOW LQ VHULRXV LQMXU\ RU GHDWK

Proper refrigerant charge is essential to proper unit operation. Operating a unit with an improper refrigerant charge will

UHVXOW LQ UHGXFHG SHUIRUPDQFH FDSDFLW\ DQG RU HI¿FLHQF\

Accordingly, the use of proper charging methods during servicing will insure that the unit is functioning as designed and that its compressor will not be damaged.

7RR PXFK UHIULJHUDQW RYHUFKDUJH LQ WKH V\VWHP LV MXVW DV EDG

(if not worse) than not enough refrigerant (undercharge). They both can be the source of certain compressor failures if they remain uncorrected for any period of time. Quite often, other

SUREOHPV VXFK DV ORZ DLU ÀRZ DFURVV HYDSRUDWRU HWF DUH misdiagnosed as refrigerant charge problems. The refrigerant circuit diagnosis chart will assist you in properly diagnosing these systems.

An overcharged unit will at times return liquid refrigerant (slugging) back to the suction side of the compressor eventually causing a mechanical failure within the compressor. This mechanical failure can manifest itself as valve failure, bearing

IDLOXUH DQG RU RWKHU PHFKDQLFDO IDLOXUH 7KH VSHFL¿F W\SH RI IDLOXUH ZLOO EH LQÀXHQFHG E\ WKH DPRXQW RI OLTXLG EHLQJ UHWXUQHG and the length of time the slugging continues.

Refrigerant Charging

NOTE: Because the KuhlQ system is a sealed system, service process tubes will have to be installed. First install a line tap and remove refrigerant from system. Make necessary sealed system repairs and vacuum system. Crimp process tube line and solder end shut. Do not leave a service valve in the sealed system.

Not enough refrigerant (undercharge) on the other hand, will cause the temperature of the suction gas to increase to

WKH SRLQW ZKHUH LW GRHV QRW SURYLGH VXI¿FLHQW FRROLQJ IRU WKH compressor motor. When this occurs, the motor winding temperature will increase causing the motor to overheat and possibly cycle open the compressor overload protector. Continued overheating of the motor windings and/or cycling of the overload will eventually lead to compressor motor or overload failure.

30

Method Of Charging / Repairs

The acceptable method for charging the RAC system is the Weighed in Charge Method. The weighed in charge method is applicable to all units. It is the preferred method to use, as it is the most accurate.

The weighed in method should always be used whenever a charge is removed from a unit such as for a leak repair, compressor replacement, or when there is no refrigerant charge left in the unit. To charge by this method, requires the following steps:

1.Install a piercing valve to remove refrigerant from the sealedsystem. (Piercing valve must be removed from the system before recharging.)

2.Recover Refrigerant in accordance with EPA regulations.

WARNING

BURN HAZARD

Proper safety procedures must be followed, and proper protective clothing must be worn when working with a torch.

Failure to follow these procedures could

UHVXOW LQ PRGHUDWH RU VHULRXV LQMXU\

3. Install a process tube to sealed system.

CAUTION

FREEZE HAZARD

Proper safety procedures must be followed, and proper protective clothing must be worn when working with liquid refrigerant.

Failure to follow these procedures could

UHVXOW LQ PLQRU WR PRGHUDWH LQMXU\

4.Make necessary repairs to system.

5.Evacuate system to 200 microns or less.

6.Weigh in refrigerant with the property quantity of R410-Arefrigerant.

7.Start unit, and verify performance.

WARNING

BURN HAZARD

Proper safety procedures must be followed, and proper protective clothing must be worn when working with a torch.

Failure to follow these procedures could

UHVXOW LQ PRGHUDWH RU VHULRXV LQMXU\

8. Crimp the process tube and solder the end shut.

31

WARNING

ELECTRIC SHOCK HAZARD

Turn off electric power before service or installation.

Extreme care must be used, if it becomes necessary to work on equipment with power applied.

)DLOXUH WR GR VR FRXOG UHVXOW LQ VHULRXV LQMXU\ RU death.

Undercharged Refrigerant Systems

An undercharged system will result in poor performance (low pressures, etc.) in both the heating and cooling cycle.

Whenever you service a unit with an undercharge of refrigerant, always suspect a leak. The leak must be repaired before charging the unit.

To check for an undercharged system, turn the unit on, allow the compressor to run long enough to establish working pressures in the system (15 to 20 minutes).

During the cooling cycle you can listen carefully at the exit of the metering device into the evaporator; an intermittent hissing and gurgling sound indicates a low refrigerant charge. Intermittent frosting and thawing of the evaporator is another indication of a low charge, however, frosting

DQG WKDZLQJ FDQ DOVR EH FDXVHG E\ LQVXI¿FLHQW DLU RYHU the evaporator.

Checks for an undercharged system can be made at the compressor. If the compressor seems quieter than normal, it is an indication of a low refrigerant charge.

Overcharged Refrigerant Systems

Compressor amps will be near normal or higher. Noncondensables can also cause these symptoms.

7R FRQ¿UP UHPRYH VRPH RI WKH FKDUJH LI FRQGLWLRQV improve, system may be overcharged. If conditions don’t improve, Noncondensables are indicated.

Whenever an overcharged system is indicated, always

PDNH VXUH WKDW WKH SUREOHP LV QRW FDXVHG E\ DLU ÀRZ SUREOHPV ,PSURSHU DLU ÀRZ RYHU WKH HYDSRUDWRU FRLO PD\ indicate some of the same symptoms as an over charged system.

An overcharge can cause the compressor to fail, since it would be “slugged” with liquid refrigerant.

The charge for any system is critical. When the compressor is noisy, suspect an overcharge, when you are sure that the air quantity over the evaporator coil is correct. Icing

WARNING

HIGH PRESSURE HAZARD

Sealed Refrigeration System contains refrigerant and oil under high pressure.

Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants.

Failure to follow these procedures could

UHVXOW LQ VHULRXV LQMXU\ RU GHDWK

A check of the amperage drawn by the compressor motor should show a lower reading. (Check the Unit

6SHFL¿FDWLRQ $IWHU WKH XQLW KDV UXQ WR PLQXWHV check the gauge pressures. Gauges connected to system with an undercharge will have low head pressures and substantially low suction pressures.

of the evaporator will not be encountered because the refrigerant will boil later if at all. Gauges connected to system will usually have higher head pressure (depending upon amount of over charge). Suction pressure should be slightly higher.

32

Restricted Refrigerant System

Troubleshooting a restricted refrigerant system can be GLI¿FXOW The following procedures are the more common problems and solutions to these problems. There are two types of refrigerant restrictions: Partial restrictions and complete restrictions.

A partial restriction allows some of the refrigerant to circulate through the system.

With a complete restriction there is no circulation of refrigerant in the system.

Restricted refrigerant systems display the same symptoms as a “low-chargecondition.”

When the unit is shut off, the gauges may equalize very slowly.

Gauges connected to a completely restricted system will run in a deep vacuum. When the unit is shut off, the

gauges will not equalize at all.

A quick check for either condition begins at the evaporator. With a partial restriction, there may be gurgling sounds

at the metering device entrance to the evaporator. The evaporator in a partial restriction could be partially frosted or have an ice ball close to the entrance of the metering device. Frost may continue on the suction line back to the compressor.

Often a partial restriction of any type can be found by feel, as there is a temperature difference from one side of the restriction to the other.

With a complete restriction, there will be no sound at the metering device entrance. An amperage check of the compressor with a partial restriction may show normal

FXUUHQW ZKHQ FRPSDUHG WR WKH XQLW VSHFL¿ FDWLRQ :LWK D complete restriction the current drawn may be considerably less than normal, as the compressor is running in a deep vacuum (no load.) Much of the area of the condenser will be relatively cool since most or all of the liquid refrigerant will be stored there.

The following conditions are based primarily on a system in the cooling mode.

33

COMPRESSOR CHECKS

WARNING

ELECTRIC SHOCK HAZARD

Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied.

Failure to do so could result in serious injury or death.

Locked Rotor Voltage (L.R.V.) Test

Locked rotor voltage (L.R.V.) is the actual voltage available at the compressor under a stalled condition.

Single Phase Connections

Disconnect power from unit. Using a voltmeter, attach one lead of the meter to the run “R” terminal on the compressor and the other lead to the common “C” terminal of the compressor. Restore power to unit.

Determine L.R.V.

Start the compressor with the volt meter attached; then stop the unit. Attempt to restart the compressor within a couple of seconds and immediately read the voltage on the meter. The compressor under these conditions will not start and will usually kick out on overload within a few seconds since the pressures in the system will not have had time to equalize. Voltage should be at or above minimum voltage of 197 VAC,

DV VSHFL¿HG RQ WKH UDWLQJ SODWH ,I OHVV WKDQ PLQLPXP FKHFN for cause of inadequate power supply; i.e., incorrect wire size, loose electrical connections, etc.

Amperage (L.R.A.) Test

The running amperage of the compressor is the most important of these readings. A running amperage higher than that indicated in the performance data indicates that a problem exists mechanically or electrically.

Single Phase Running and L.R.A. Test

NOTE: &RQVXOW WKH VSHFL¿FDWLRQ DQG SHUIRUPDQFH VHFWLRQ for running amperage. The L.R.A. can also be found on the rating plate.

Select the proper amperage scale and clamp the meter probe around the wire to the “C” terminal of the compressor. Turn on the unit and read the running amperage on the meter ,I WKH FRPSUHVVRU GRHV QRW VWDUW WKH UHDGLQJ will indicate the locked rotor amperage (L.R.A.).

External Overload

The compressor is equipped with an external overload which senses both motor amperage and winding temperature. High motor temperature or amperage heats the overload causing it to open, breaking the common circuit within the compressor.

Heat generated within the compressor shell, usually due to recycling of the motor LV VORZ WR GLVVLSDWH ,W PD\ WDNH anywhere from a few minutes to several hours for the overload to reset.

Checking the External Overload

WARNING

ELECTRIC SHOCK HAZARD

Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied.

Failure to do so could result in serious injury or death.

WARNING

BURN HAZARD

Certain unit components operate at temperatures hot enough to cause burns.

Proper safety procedures must be followed, and proper protective clothing must be worn.

Failure to follow this warning could result in moderate to serious injury.

With power off, remove the leads from compressor termi-

QDOV ,I WKH FRPSUHVVRU LV KRW DOORZ WKH RYHUORDG WR FRRO before starting check. Using an ohmmeter, test continu-

LW\ DFURVV WKH WHUPLQDOV RI WKH H[WHUQDO RYHUORDG ,I \RX do not have continuity; this indicates that the overload is open and must be replaced.

34

Single Phase Resistance Test

Remove the leads from the compressor terminals and set the ohmmeter on the lowest scale (R x 1).

Touch the leads of the ohmmeter from terminals common to start (“C” to “S”). Next, touch the leads of the ohmmeter from terminals common to run (“C” to “R”).

Add values “C” to “S” and “C” to “R” together and check resistance from start to run terminals (“S” to “R”). Resistance “S” to “R” should equal the total of “C” to “S” and “C” to “R.”

In a single phase PSC compressor motor, the highest value will be from the start to the run connections (“S” to “R”). The next highest resistance is from the start to the common connections (“S” to “C”). The lowest resistance is from the run to common. (“C” to “R”) Before replacing a compressor, check to be sure it is defective.

GROUND TEST

Use an ohmmeter set on its highest scale. Touch one lead to the compressor body (clean point of contact as a good connection is a must) and the other probe in turn to each compressor terminal. If a reading is obtained the compressor is grounded and must be replaced.

Check the complete electrical system to the compressor and compressor internal electrical system, check to be certain that compressor is not out on internal overload.

Complete evaluation of the system must be made whenever you suspect the compressor is defective. If the compressor has been operating for sometime, a careful examination must be made to determine why the compressor failed.

Many compressor failures are caused by the following conditions:

,PSURSHU DLU ÀRZ RYHU WKH HYDSRUDWRU

2.Overcharged refrigerant system causing liquid to be returned to the compressor.

3.Restricted refrigerant system.

4.Lack of lubrication.

5.Liquid refrigerant returning to compressor causing oil to be washed out of bearings.

6. Noncondensables such as air and moisture in the system. Moisture is extremely destructive to a refrigerant system.

7.Defective capacitors.

35

COMPRESSOR REPLACEMENT

Recommended procedure for compressor replacement

WARNING

RISK OF ELECTRIC SHOCK

Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenances or service.

Failure to do so could result in electric shock,

VHULRXV LQMXU\ RU GHDWK

1.Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actually defective before replacing.

WARNING

HIGH PRESSURE HAZARD

Sealed Refrigeration System contains refrigerant and oil under high pressure.

Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants.

Failure to follow these procedures could

UHVXOW LQ VHULRXV LQMXU\ RU GHDWK

2. Recover all refrigerant from the system though the process tubes. PROPER HANDLING OF

RECOVERED REFRIGERANT ACCORDING TO EPA REGULATIONS IS REQUIRED. Do not use gauge manifold for this purpose if there has been a burnout. You will contaminate your manifold and hoses. Use a Schrader valve adapter and copper tubing for burnout failures.

WARNING

HIGH TEMPERATURES

([WUHPH FDUH SURSHU MXGJPHQW DQG DOO VDIHW\ procedures must be followed when testing, troubleshooting, handling or working around unit while in operation with high temperature components. Wear protective safety aids such as: gloves, clothing etc.

Failure to do so could result in serious burn

LQMXU\

NOTICE

FIRE HAZARD

The use of a torch requires extreme care and proper

MXGJPHQW )ROORZ DOO VDIHW\ UHFRPPHQGHG SUHFDXWLRQV DQG SURWHFW VXUURXQGLQJ DUHDV ZLWK ¿UH SURRI PDWHULDOV +DYH D ¿UH H[WLQJXLVKHU UHDGLO\ DYDLODEOH )DLOXUH WR IROORZ this notice could result in moderate to serious property damage.

3.After all refrigerant has been recovered, disconnect suction and discharge lines from the compressor and remove compressor. Be certain to have both suction and discharge process tubes open to atmosphere.

4.Carefully pour a small amount of oil from the suction stub of the defective compressor into a clean container.

5.Using an acid test kit (one shot or conventional kit), test the oil for acid content according to the instructions with the kit.

6.If any evidence of a burnout is found, no matter how slight, the system will need to be cleaned up following proper procedures.

7.Install the replacement compressor.

WARNING

EXPLOSION HAZARD

The use of nitrogen requires a pressure regulator. Follow all safety procedures and wear protective safety clothing etc.

Failure to follow proper safety procedures

UHVXOW LQ VHULRXV LQMXU\ RU GHDWK

8.Pressurize with a combination of R410-Aand nitrogen and leak test all connections with an electronic or Halide leak detector. Recover refrigerant and repair any leaks found.

Repeat Step 8 to insure no more leaks are present.

(YDFXDWH WKH V\VWHP ZLWK D JRRG YDFXXP SXPS FDSDEOH RI D ¿QDO YDFXXP RI PLFURQV RU OHVV 7KH V\VWHP should be evacuated through both liquid line and suction line gauge ports. While the unit is being evacuated, seal all openings on the defective compressor. Compressor manufacturers will void warranties on units received not properly sealed. Do not distort the manufacturers tube connections.

CAUTION

FREEZE HAZARD

Proper safety procedures must be followed, and proper protective clothing must be worn when working with liquid refrigerant.

Failure to follow these procedures could

UHVXOW LQ PLQRU WR PRGHUDWH LQMXU\

10. Recharge the system with the correct amount of refrigerant. The proper refrigerant charge will be found on the unit rating plate. The use of an accurate measuring device, such as a charging cylinder, electronic scales or similar device is necessary.

36

SPECIAL PROCEDURE IN THE CASE OF MOTOR COMPRESSOR BURNOUT

WARNING

ELECTRIC SHOCK HAZARD

Turn off electric power before service or installation.

)DLOXUH WR GR VR PD\ UHVXOW LQ SHUVRQDO LQMXU\ or death.

WARNING

HIGH PRESSURE HAZARD

Sealed Refrigeration System contains refrigerant and oil under high pressure.

Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants.

Failure to follow these procedures could

UHVXOW LQ VHULRXV LQMXU\ RU GHDWK

WARNING

EXPLOSION HAZARD

The use of nitrogen requires a pressure regulator. Follow all safety procedures and wear protective safety clothing etc.

Failure to follow proper safety procedures

UHVXOW LQ VHULRXV LQMXU\ RU GHDWK

1.Recover all refrigerant and oil from the system.

2.5HPRYH FRPSUHVVRU FDSLOODU\ WXEH DQG ¿OWHU GULHU from the system.

3.Flush evaporator condenser and all connecting tubing with dry nitrogen or equivalent. Use approved

ÀXVKLQJ DJHQW WR UHPRYH DOO FRQWDPLQDWLRQ IURP system. Inspect suction and discharge line for carbon deposits. Remove and clean if necessary. Ensure all acid is neutralized.

4.Reassemble the system, including new drier strainer and capillary tube.

5.Proceed with step 8-10on previous page.

ROTARY COMPRESSOR SPECIAL TROUBLESHOOTING AND SERVICE

Basically, troubleshooting and servicing rotary compressors is the same as on the reciprocating compressor with only one main exception:

NEVER, under any circumstances, liquid charge a rotary compressor through theLOW side. Doing so would cause permanent damage to the new compressor.

Available Accessories

Carbon Filter Kits

Each kit contains three (3) ¿lters.

KWCFQ - Carbon ¿lter kit for "Q" chassis models.

Window Installation Kits

(Standard in Kühl Models without Heat)

KWIKQ

FriedrichLink™ Adapter Accessory:

KWIFI - FriedrichLink™ Adapter Accessory for wireless control and additional programming options

Decorative Color Front Panel Kits:

KWBGEQA - Q Model Decorative Front Cover in Classic BeigeKWBLKQA - Q Model Decorative Front Cover in Black OnyxKWBLUQA - Q Model Decorative Front Cover in Cobalt BlueKWPNKQA - Q Model Decorative Front Cover in Pink DiamondKWREDQA - Q Model Decorative Front Cover in Deep RedKWWHTQA - Q Model Decorative Front Cover in Designer White

See www.friedrich.com for additional accessories for your unit.

37

Standard Filter Cleaning / Installation Instructions

STEP 1. Swing the door open and remove the ¿lter by grasping the ¿lter grip and pushing the ¿lter holder upward and outward.

Figure 2

FILTER

DOOR

FRR075

STEP 2. Clean the front frame by washing the dirt from the ¿lter. Use a mild soap solution if necessary. Allow ¿lter to dry.

STEP 3. Install the ¿lter back into the unit. Follow the Instructions on the inside of the front door.

Figure 3

 

 

FILTER

 

DOOR

FILTER FRAME

 

INSTRUCTIONS

FRR076

 

How to Remove the Front Cover

Unplug unit.

STEP 1. Open the Decorative Front Cover, and remove the 4 screws.

Save to reinstall later.

Figure 18

UNIT COMES WITH POWER CORD

ALREADY INSTALLED AND ROUTED

TO THE LEFT SIDE

SCREWS ATTACHING DECORATIVE

FRONT COVER TO UNIT

(4 REQUIRED)

SCREW, #8 x 1/2” PHILLIPS HEAD (SEE ILLUSTRATION ITEM #2, PAGE 22)

2 REQUIRED (1 EACH SIDE)

FRR098

38

ROUTINE MAINTENANCE

WARNING

ELECTRIC SHOCK HAZARD

Turn off electric power before inspections, maintenances, or service.

Failure to do so could result in serious injury or death.

WARNING

EXCESSIVE WEIGHT HAZARD

Use two people to lift or carry the unit, and wear proper protective clothing.

Failure to do so may result in personal injury.

WARNING

CUT/SEVER HAZARD

Be careful with the sharp edges and corners.

Wear protective clothing and gloves, etc.

Failure to do so could result in serious injury.

NOTICE

personnel only. Use proper protection on surrounding property. Failure to follow this notice could result in moderate or serious property damage.

NOTICE

Do not use a caustic coil cleaning agent on coils or base pan. Use a biodegradable cleaning agent and degreaser, to prevent damage to the coil and/or base pan.

To Remove, Wash and Replace Filter

Lower front panel (See Figure 2). Use handle on filter to flex filter up and out of retainer. Remove filter from unit (See Figure 3). Clean filter monthly or more frequently if needed. Clean the filters with a mild detergent in warm water and allow to dry thoroughly before reinstalling. Refer to accessories section for filter options.

DECORATIVE FRONT COVER

The decorative front and discharge air grille may be cleaned with a mild soap or detergent. Do NOT use solvents or hydrocarbon based cleaners such as acetone, naphtha, gasoline, benzene, etc., to clean the decorative front or air discharge grilles

Use a damp (not wet) cloth when cleaning the control area to prevent water from entering unit, and possibly damaging the electronic control.

COILS AND BASE PAN

The indoor coil (evaporator coil), the outdoor coil (condenser coil) and base pan should be inspected periodically (yearly or bi-yearly)and cleaned of all debris (lint, dirt, leaves, paper, etc.). Clean the coils and base pan with a soft brush and compressed air or vacuum. If using a pressure washer, be careful

up and down motion in the direction of the vertical

Cover all electrical components to protect them from water or spray. Allow the unit to dry thoroughly before reinstalling it in the sleeve.

BLOWER WHEEL / HOUSING / CONDENSER FAN / SHROUD

Inspect the indoor blower and its housing, evaporator blade, condenser fan blade and condenser shroud periodically (yearly or bi-yearly)and clean of all debris (lint, dirt, mold, fungus, etc.). Clean the blower housing area and blower wheel with an antibacterial / antifungal cleaner. Use a biodegradable cleaning agent and degreaser on condenser fan and condenser shroud. Use warm or cold water when rinsing these items. Allow all items to dry thoroughly before reinstalling them.

ELECTRONIC / ELECTRICAL / MECHANICAL

Periodically (at least yearly or bi-yearly):inspect all control components: electronic, electrical and

mechanical, as well as the power supply. Use proper conditioning or refrigeration thermometer to check testing instruments (voltmeter, ohmmeter, ammeter, wattmeter, etc.) to perform electrical tests. Use an air room, outdoor and coil operating temperatures. Use an electronic tester to measure wet bulb temperatures indoors and outdoors.

ROUTINE MAINTENANCE (Continued)

NOTICE

Do not drill holes in the bottom of the drain pan or the underside of the unit. Not following this notice could result in damage to the unit or condensate water leaking inappropriately which could cause water damage to surrounding property.

SLEEVE / DRAIN

Inspect the sleeve and drain system periodically (at least yearly or bi-yearly)and clean of all obstructions and debris. Clean both areas with an antibacterial and antifungal cleaner. Rinse both items thoroughly with water and ensure that the drain outlets are operating correctly. Check the sealant around the sleeve and reseal areas as needed.

CLEARANCES

Inspect the surrounding area (inside and outside) to ensure that the unit’s clearances have not been compromised or altered.

 

Condenser

Compressor

Discharge Air

 

Relay Board

 

 

Key Pad and Electronic

 

 

Control Board

 

Sleeve

 

 

Evaporator Coil

 

Condenser Fan Blade

 

 

 

 

Blower Motor

 

Return Air

Blower Wheel

 

 

40

After Maintenance/Repair Start-Up

Checklist & Notes

Inspect and ensure that all components and accessories have been installed properly and that they have not been damaged during the installation progress.

Check the condensate water drain(s) to ensure that they are adequate for the removal of condensate water, and that they meet the approval of the end user.

Ensure that all installation instructions concerning clearances around the unit have been adhered to. Check to ensure that the unit air ¿lter, indoor coil, and outdoor coil are free from any obstructions.

Ensure that the circuit breaker(s) or fuse(s) and supply circuit wire size have been sized correctly. If the unit was supplied with a power supply cord, insure that it is stored properly.

Ensure that the entire installation is in compliance with all applicable national and local codes and ordinances having jurisdiction.

Secure components and accessories, such as a decorative front cover.

Start the unit and check for proper operation of all components in each mode of operation.

Instruct the owner or operator of the units operation, and the manufacturer's Routine Maintenance.

NOTE: A log for recording the dates of maintenance and/or service is recommended.

Present the owner or operator of the equipment with the Installation & Operation Manual, all accessory installation instructions, and the name, address and telephone number of the Authorized Friedrich Warranty Service Company in the area for future reference if necessary.

This is a warm weather appliance

Your air conditioner is designed to cool in warm weather when the outside temperature is above 60°F (15.6°C) and below 115°F (46.1°C), so it won't cool a room if it is already cool outside.

Condensation is normal

Air conditioners actually pump the heat and humidity from your room to the outside. Humidity becomes water, and your air conditioner will use most of the water to keep the outside coil cool. If there is excessive humidity, there may be excess water that will drip outside. This is normal operation.

Frosting

This usually occurs because of insuf¿cient airÀow across the coils, a dirty ¿lter, cool damp weather, or all of these. Set the SYSTEM mode to FAN ONLYand the frost will disappear. Setting the thermostat a little warmer will probably prevent the frosting from recurring.

Noises

All air conditioners make some noise. Friedrich units are designed to operate as quietly as possible. An air conditioner mounted in a wall is quieter than one mounted in a window. It is important to ensure that the chassis seal gasket (Item 14) is properly installed (refer to installation instructions).

41

42

How to Check the Diagnostic Codes

Erasing the Diagnostic Codes

See codes chart on next page.

F

AUTO FAN

SET POINT

To check the active system errors, press the SPEEDFAN &keys for 3 sec.

An “E” will appear in the display. Use the orkeys to scroll through any system errors. Only active errors will be shown. The display error mode will time out in 15 seconds with no key activity.

ON

Press the key to view the next error. Press the SELECT key to exit.

F

AUTO FAN

SET POINT

Normal display.

F

AUTO FAN

SET POINT

Press and hold the SCHEDULE and

 

buttons simultaneously for 3 sec.

 

 

 

 

 

TIMER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The “E” will blink for 3 seconds.

F

AUTO FAN

SET POINT

After the “E” blinks for 3 seconds, the display returns to normal.

43

ERROR CODES

Error

Problem

Control Board's Action

Code

 

 

1

Front Panel Button Stuck For More

Continue to monitor for "OPEN" (Unstuck) switch. Do not process switch

Than 20 Seconds

input.

 

2Input Voltage Out of Specification (103 Open all relays until voltage is back within specs. Resume operation - 127 / 187 - 253)

3Indoor Temperature Sensor is Open or Set temp to 75°F in COOLING or 68°F in HEATING. Unit continues to Shorted operate

4

Indoor Coil Temperature Sensor is

Control Board sets temp to a default of 40°F. Override sensor. Unit

Open or Shorted

continues to operate.

 

5

Outdoor Coil Temperature Sensor is

Sets temp to 20°F. Override sensor. Continue operation. Use Elec Heat if

available for HEATING. If not available use HEAT PUMP if outdoor temp

Open or Shorted

 

allows.

 

 

 

 

Shut down for 5 min. Resume operation for 3 min. Continues to monitor. If

6

Outdoor Coil > (grater than) 175 F

test fails 3 times, the unit operation is locked out. Unplug and replug to

 

 

reset.

7

Indoor Coil < (less than) 30 F for 2

Turn compressor off. Run High Fan speed. When coil temp reachs 45°F

consecutive minutes

resume operation after lockout time.

 

8Unit Cycles > (grater than) 9 Times per Continue operation. Continue to monitor. Take no action. Log Only. hour

9

Unit Cycles < (less than) 3 Times per

Continue operation. Continue to monitor. Take no action. Log Only.

Hour

 

 

 

 

Only used if Electric Heat is available. Run High Speed and Electric heat

10

Room Freeze Protection

until room temp reaches 46°F. Display "FRZ" during operation. Logged

 

 

Only

11

WallStat Problem or Connection Issue

Unit operates based on standard t-statconnection. If miswired, unit will not

not operate. (See pages 32 and 68)

12

Not Applicable

Not Applicable

 

 

 

13

Not Applicable

Not Applicable

 

 

 

14

Discharge Air Temperature Sensor is

Override Sensor. Set temp to 75°F. Continue to monitor. Set error code 14

Open or Shorted

ON.

 

15

Not Applicable

Not Applicable

 

 

 

16

Temperature Beyond Operating Limits

Ambient temp < (less than) 0°F and ambient temp > (greater than) 130°F.

 

 

Set error code 16 ON. When cleared return unit to normal.

17

Equipment Doesn't Meet Minimum

Must have compressor enabled and at least 2 fan speeds

Configuration

 

 

18

Not Applicable

Not Applicable

 

 

 

19

Not Applicable

Not Applicable

20

Not Applicable

Not Applicable

 

 

 

21

Not Applicable

Not Applicable

22

Outdoor Coil Temperature < 30 F for 2

Unit will use electric heat to satisfy heating demands until temp is greater

consecutive Minutes

than 45°F. Unit must be a Heat Pump with electric heat.

 

23

Not Applicable

Not Applicable

 

 

 

24

Not Applicable

Not Applicable

 

 

Key Sequence

 

 

Action

 

 

To Access Error Codes

Press the fan speed and key for 3 seconds

 

 

Reset Error Codes & Error History

Press + timer/schedule for 3 seconds

 

 

When you have entered the Error Codes section, an “E” will appear. Use the up

and down keys to scroll through error codes.

 

Only active error codes will display.

 

 

 

 

44

SET POINT
& TIMER buttons simultaneously for 3 seconds.
SCHEDULE
MODEFAN , SPEEDFAN

Test Mode

This function is used to test the compressor operation. By turning it on, it allows the service technician to bypass the compressor’s 3 minute time delay.

F

AUTO FAN

Press the ,

This will activate the test mode.

ON

The ON icon will appear for 5 seconds and the display will then revert to the normal display. The test mode will time out after 1 hour. To cancel test mode, unplug and replug the power cord.

F

AUTO FAN

SET POINT

Normal display.

46

47

COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS

48

COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS

COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS

50

COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS

51

HEAT / COOL ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS

* NOTE: Heater size on the EQ08M11 is: 1.15 KW.

52

ELECTRONIC CONTROLS

COOL ONLY

SQ05N10-A,SQ06N10-A,SQ08N10-A,SQ10N10-A

53

ELECTRONIC CONTROLS

COOL WITH ELECTRIC HEAT MODELS

EQ08M11-A

WIRING DIAGRAM

USER INTERFACE

INDOOR

AMBIENT SENSOR (WHITE)

COMPRESSOR TERMINAL

ORIENTATION MAY VARY.

REFER TO MARKINGS ON

COMPRESSOR.

 

 

OUTDOOR COIL SENSOR (BLUE)

COMPRESSOR

RELAY BOARD

INDOOR COIL SENSOR (GREEN)

 

 

 

SUPPLY CORD

 

 

 

 

RED

 

 

 

C

 

BLUE

 

 

 

OVLD

BLACK

 

 

 

S

R

 

 

 

 

 

 

 

 

 

 

BLACK

 

LN

L1

BLUE

 

RED

BLACK

 

 

 

 

 

 

WHITE

 

 

 

 

 

 

 

 

GREEN

FAN

 

 

 

 

 

BLACK

 

 

 

TO INNER

 

 

 

 

 

 

TO ECONTROL

 

MOTOR

 

 

 

 

 

 

 

WALL /

 

 

 

 

 

 

 

 

 

WHITE

 

 

 

 

BRACKET

 

 

MOTOR

 

 

 

 

 

GREEN

 

 

 

 

 

 

 

 

 

 

 

MOUNT

WHITE

 

 

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAPACITOR

C

 

ORANGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

F

M

BROWN

 

 

 

 

 

 

 

 

AN

R

 

 

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

 

BLUE

 

H

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEATER

 

 

 

 

 

 

 

 

 

 

 

 

 

SCHEMATIC

 

 

 

 

 

 

 

 

NEUTRAL

L1 115 VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HIGH

 

 

 

 

 

 

 

 

1

 

 

 

 

R

 

 

 

 

 

 

 

MEDIUM

OVLD

 

FAN MTR

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN

COM

 

 

 

 

 

LOW

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAP

 

 

 

 

3

 

ELECTRIC HEAT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

HL

HTR

TF

 

 

 

 

 

 

 

 

 

 

 

 

 

COM

 

NO

OVLD

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

COMPRESSOR

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

HERM

COM

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

ELECTRONIC CONTROL

 

 

 

 

CAP

 

 

 

 

 

 

 

L E G E N D

 

 

CAP

- CAPACITOR

COMPR - COMPRESSOR

MTR

- FAN MOTOR

OLP

- OVERLOAD PROTECTOR

UI

- USER INTERFACE

TF

- THERMAL FUSE

HL

- HEATER LIMIT FUSE

T

-THERMISTER

-COMBINATION TERMINAL

-GROUNDED LEAD SYMBOL

-INSULATOR

PART NO. REV. 92120002 01

54

THERMISTORS’ RESISTANCE VALUES

(This Table Applies to All Thermistors)

TEMP

RESISTENCE

(F)

(K Ohms)

 

 

0

56.4452

5

49.6839

10

43.8591

15

38.8118

20

34.4303

25

30.6103

26

29.9068

27

29.2218

28

28.5546

29

27.9048

30

27.2717

31

26.6550

32

26.0540

33

25.4698

34

24.9004

35

24.3454

36

23.8044

37

23.2770

38

22.7628

39

22.2615

40

21.7726

45

19.5068

50

17.5040

60

14.1607

65

12.7641

66

12.5036

67

12.2490

68

12.0000

69

11.7573

70

11.5199

71

11.2879

72

11.0611

73

10.8392

74

10.6223

75

10.4103

76

10.2029

77

10.0000

78

9.7965

79

9.5977

80

9.4033

TEMP

RESISTENCE

(F)

(K Ohms)

 

 

81

9.2133

82

9.0275

83

8.8459

84

8.6683

85

8.4947

86

8.3250

87

8.1593

88

7.9973

89

7.8388

90

7.6839

91

7.5324

92

7.3841

93

7.2391

94

7.0973

95

6.9586

96

6.8232

97

6.6906

98

6.5610

99

6.4341

100

6.3100

101

6.1885

102

6.0696

103

5.9533

104

5.8395

105

5.7283

106

5.6195

107

5.5129

108

5.4087

109

5.3065

110

5.2066

111

5.1088

112

5.0130

113

4.9192

114

4.8276

115

4.7378

116

4.6500

117

4.5639

118

4.4796

119

4.3971

120

4.3163

55

56

57

HEAT LOAD FORM

The heat load form on the following page may be used by servicing personnel to determine the heat loss of aconditioned space and the ambient winter design temperatures in which the unit will heat the calculated space.

The upper half of the form is for computing the heat loss of the space to be conditioned. It is necessary only to insert the proper measurements on the lines provided and multiply by the given factors, then add this result for the total heat loss in BTU/Hr./°F.

The BTU/Hr. per °F temperature difference is the 70°F inside winter designed temperature minus the lowest outdoor ambient winter temperature of the area where the unit is installed. This temperature difference is used as the multiplier when calculating the heat loss.

The graph shows the following:

Left Hand Scale

Unit capacity BTU/Hr. or heat loss

 

BTU/Hr.

Bottom Scale

Outdoor ambient temperature, base

 

point.

Heat Pump Model

BTU/Hr. capacity heat pump will

 

deliver at outdoor temperatures.

Balance Point

Maximum BTU/Hr. heat pump

 

will deliver at indicated ambient

 

temperature.

Following is an example using the heat load form:

A space to be conditioned is part of a house geographically located in an area where the lowest outdoor ambient winter temperature is 40°F. The calculated heat loss is 184 BTU/ Hr./°F.

Subtract 40°F (lowest outdoor ambient temperature for the geographical location) from 70°F (inside design temperature of the unit) for a difference of 30°F. Multiply 184 by 30 for a 5500 BTU/Hr. total heat loss for the calculated space.

On the graph, plot the base point (70°) and a point on the 40°F line where it intersects with the 5500 BTU/Hr. line on the left scale. Draw a straight line from the base point 70 through the point plotted at 40°F. This is the total heat loss line.

Knowing that we have a 5500 BTU/Hr. heat loss, and we expect that our heat pump will maintain a 70°F inside temperature at 40°F outdoor ambient, we plot the selected unit capacity BTU/Hr. of the unit between 35° and 60° on the graph and draw a straight line between these points. Where the total heat loss line and the unit capacity line intersect, read down to the outdoor ambient temperature scale and ¿nd that this unit will deliver the required BTU/Hr. capacity to approximately 30°F.

6

58

HEATING LOAD FORM

FRIEDRICH ROOM UNIT HEAT PUMPS

WALLS: (Linear Feet)

BTU/HR PER

°F TEMP. DIFFERENCE

2” Insulation

Lin. Ft. x 1.6

Average

Lin. Ft. x 2.6

WINDOWS & DOORS (Area, sq. ft.)

 

Single Glass:

Sq. Ft. x 1.13

Double Glass:

Sq. Ft. x 0.61

INFILTRATION - WINDOWS & DOORS: AVG.

Lin. Ft. x 1.0

Loose

Lin. Ft. x 2.0

CEILING: (Area, Sq. Ft.)

 

Insulated (6”)

Sq. Ft. x 0.07

Insulated (2”)

Sq. Ft. x 0.10

Built-upRoof (2” insulated

Sq. Ft. x 0.10

Built-upRoof (1/2” insulated)

Sq. Ft. x 0.20

No Insulation

Sq. Ft. x 0.33

FLOOR: (Area, Sq. Ft.)

 

Above Vented Crawl space

 

Insulated (1:)

Sq. Ft. x 0.20

Uninsulated

Sq. Ft. x 0.50

* Slab on Ground

Lin. Ft. x 1.70

1” Perimeter insulation

Lin. Ft. x 1.00

* Based on Linear Feet of outside wall

TOTAL HEAT LOSS PER °F BTU/HR/°F

Multiply total BTU/HR/°F X 30 and plot on the graph below at 40°F. Draw a straight line from the 70 base point thru the point plotted at 40°F. The intersection of this heat loss line with the unit capacity line represents the winter design heating load.

7

60

Kühl Q-CHASSISUNIT EXPLODED DIAGRAM

 

22

 

 

 

 

 

 

 

6

 

 

 

 

23

3

 

 

 

 

 

 

 

 

 

24

 

 

17

20

21

 

 

 

 

 

 

12

14

 

 

7

1

 

 

 

 

 

 

 

 

19

 

 

 

 

 

8

 

 

 

 

 

2

 

 

 

 

18

10

 

 

 

 

25

 

 

 

 

 

5

4

26

15 16

13

11

9

List Parts 2012 Chassis Q-Kühl

Kühl-QUnits’ 2012 Parts List

33

32

27

29

30

31

 

28

32

61

Kühl Q-ChassisService Parts List

Item #

COMPONENT

COMPONENT DESCRIPTION

EQ08N11-A

SQ05N10-A

SQ06N10-A

SQ08N10-A

SQ10N10-A

1

61600523

CONDENSOR COIL

 

 

 

1

1

1

61600522

CONDENSOR COIL

1

1

1

 

 

2

61600274

EVAPORATOR COIL

 

1

1

 

1

2

61600275

EVAPORATOR COIL

1

 

 

1

 

3

61718107

KIT COMPR REPLMT 62200118

1

 

 

1

 

3

61718109

KIT COMPR REPLMT 62200007

 

 

 

 

1

3

61718112

KIT COMPR REPLMT 62200006

 

1

1

 

 

4

62601028

KIT USER INTERFACE RPLMNT SVC KUHL SQ

 

1

1

1

1

4

62601030

KIT USER INTERFACE RPLMNT SVC KUHL EQ

1

 

 

 

 

5

62601024

KIT E-CNTLSERVCOOL-EH3SP KUHL Q

1

 

 

 

 

5

62601023

KIT E-CNTLSERV COOL 3SP KUHL Q

 

1

1

1

1

6

61764594

OVERLOAD PROTECTOR B400-150-241AFSTB

 

 

 

 

1

6

61764601

OVERLOAD PROTECTOR B260-150-241E/MRA12335-12026

1

 

 

1

 

6

61764605

OVERLOAD PROTECTOR MRA12230-12008

 

1

1

 

 

7

61871451

FAN MOTOR

 

1

1

 

 

7

61871468

FAN MOTOR

 

 

 

 

1

7

61871501

FAN MOTOR

1

 

 

1

 

8

61929611

HEATER 1.15 KW @ 115V (NXT WIRE)

1

 

 

 

 

9

60500500

SUPPLY CORD

1

1

1

1

1

10

61923901

BRKT CONTROL MNTG XQ

1

1

1

1

1

11

61928801

PANEL BLWR FRONT EQ 2003

1

 

 

 

 

12

61924300

PANEL, L/S EQ/XQ

1

1

1

1

1

13

61990700

BLOWER FRONT, Q 2003

 

1

1

1

1

14

61990701

TOP BLOWER FRONT

1

1

1

1

1

15

60610604

BLOWER WHEEL

1

 

 

1

1

15

60610606

BLOWER WHEEL

 

1

1

 

 

16

61990606

SCROLL Q CHASSIS

1

1

1

1

1

17

61990500

DECK, EVAP Q CHASSIS

 

1

1

1

1

18

61627601

SHROUD 'Q'

1

1

1

1

1

19

61634001

CONDENSOR FAN

 

1

1

 

 

19

61634000

CONDENSOR FAN

1

 

 

1

1

20

61597317

INNERWALL XQ

 

1

1

1

1

20

61597318

INNERWALL EQ

1

 

 

 

 

21

61776903

FAN MOTOR BRACKET

 

1

1

 

 

21

61776900

FAN MOTOR BRACKET

1

 

 

1

1

22

61619517

COVER TOP Q-CHASSISVENTED

1

1

1

1

1

23

91400402

COMPRESSOR STUD

3

3

3

3

3

24

61028900

COMPRESSOR GROMMET

 

3

3

 

 

24

61028901

COMPRESSOR GROMMET

 

 

 

 

3

24

61028903

COMPRESSOR GROMMET

3

 

 

3

 

25

61626312

BASEPAN Q-CHASSIS

 

1

1

1

 

25

61626313

BASEPAN Q-CHASSIS

 

 

 

 

1

25

61626314

BASEPAN Q-CHASSIS

1

 

 

 

 

26

61638400

DRAIN PAN

1

1

1

1

1

27

61825725

ASSY OUTER SHELL KUHL Q REPLMT 2012

1

1

1

1

1

28

61627212

CHANNEL SILL SQ

1

1

1

1

1

29

61627314

SUPPORT TOP SQ

 

1

1

1

1

30

62400437

ASSY KIT DECORATIVE FRONT SVC KUHL Q

1

1

1

1

1

31

62400726

ASSY FILTER MESH Q

1

1

1

1

1

32

61680205

ASSY CURTAIN AND FRAME Q

 

1

1

1

1

33

61717300

GASKET CHASSIS SEAL (UV RES)Q

1

1

1

1

1

*

61619405

DECK (EQ08)

1

 

 

 

 

*

61715800

COUNTER WEIGHT

2

2

2

2

2

*

60179904

CONDENSATE DRAIN VALVE

1

 

 

 

 

*

60062720

STRAP CAPACITOR

1

1

1

1

1

*

61080530

CAPACITOR 40/5/ MF 370V 2.0

 

1

1

 

 

*

61080532

CAPACITOR 45/7.5 MF 370V 2.0

1

 

 

1

 

*

61080594

CAPACITOR 55/7.5 MF 370V 2.0

 

 

 

 

1

*

62601029

KIT REMOTE CONTROL RPLMNT SVC KUHL

1

1

1

1

1

*

61818523

EXPANDED METAL GRILLE PAINTED KUHLQ

1

1

1

1

1

*

60169120

SCRIPT FRIEDRICH 2010 "FESTOON"

1

1

1

1

1

*

62601027

KIT SENSOR RPLMNT SVC KUHL Q (THERMISTOR SET)

1

1

1

1

1

*

03760545

CAPILLARY TUBE

 

1

1

 

 

*

03760568

CAPILLARY TUBE

 

 

 

 

1

*

03760513

CAPILLARY TUBE

1

 

 

1

 

*

61834800

STRAINER .312 COIL

1

1

1

1

1

*

61828202

LIQUID DRIER

1

1

1

1

1

*

60217902

SEAL FAN MOTOR TO INNER WALL

1

1

1

1

1

*

01900235

DC-2DRAIN KIT

 

 

 

 

 

*

01109003

TOUCH UP SPRAY PAINT (12 OZ)

 

 

 

 

 

Addendum 1

Schedule Table with Energy Saving Values

Pre Programmed Residential Schedule Option 3

 

Period

Sun

 

Mon

 

Tues

 

Wed

 

Thur

 

Fri

 

Sat

 

 

 

 

 

 

 

 

 

 

 

Start Time

600

Start Time

600

Start Time

600

Start Time

600

Start Time

600

Start Time

600

Start Time

600

 

 

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

1

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

 

 

 

 

Set Point Cool

78

Set Point Cool

78

Set Point Cool

78

Set Point Cool

78

Set Point Cool

78

Set Point Cool

78

Set Point Cool

78

 

 

Set Point Heat

70

Set Point Heat

70

Set Point Heat

70

Set Point Heat

70

Set Point Heat

70

Set Point Heat

70

Set Point Heat

70

 

 

Start Time

800

Start Time

800

Start Time

800

Start Time

800

Start Time

800

Start Time

800

Start Time

800

 

 

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

2

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

 

 

 

 

Set Point Cool

85

Set Point Cool

85

Set Point Cool

85

Set Point Cool

85

Set Point Cool

85

Set Point Cool

85

Set Point Cool

85

 

 

Set Point Heat

62

Set Point Heat

62

Set Point Heat

62

Set Point Heat

62

Set Point Heat

62

Set Point Heat

62

Set Point Heat

62

 

 

Start Time

1800

Start Time

1800

Start Time

1800

Start Time

1800

Start Time

1800

Start Time

1800

Start Time

1800

 

 

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

3

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

 

 

 

 

Set Point Cool

78

Set Point Cool

78

Set Point Cool

78

Set Point Cool

78

Set Point Cool

78

Set Point Cool

78

Set Point Cool

78

 

 

Set Point Heat

70

Set Point Heat

70

Set Point Heat

70

Set Point Heat

70

Set Point Heat

70

Set Point Heat

70

Set Point Heat

70

 

 

Start Time

2200

Start Time

2200

Start Time

2200

Start Time

2200

Start Time

2200

Start Time

2200

Start Time

2200

 

 

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

4

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

Fan Speed

Low

 

 

 

 

Set Point Cool

82

Set Point Cool

82

Set Point Cool

82

Set Point Cool

82

Set Point Cool

82

Set Point Cool

82

Set Point Cool

82

 

 

Set Point Heat

62

Set Point Heat

62

Set Point Heat

62

Set Point Heat

62

Set Point Heat

62

Set Point Heat

62

Set Point Heat

62

Pre Programmed Commercial Schedule Option 3

Period

Sun

 

Mon

 

Tues

 

Wed

 

Thur

 

Fri

 

Sat

 

 

 

 

 

 

 

 

 

Start Time

700

Start Time

700

Start Time

700

Start Time

700

Start Time

700

Start Time

700

Start Time

700

 

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

1

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Speed

Med

Fan Speed

Med

Fan Speed

Med

Fan Speed

Med

Fan Speed

Med

Fan Speed

Med

Fan Speed

Med

 

 

Set Point Cool

84

Set Point Cool

75

Set Point Cool

75

Set Point Cool

75

Set Point Cool

75

Set Point Cool

75

Set Point Cool

84

 

Set Point Heat

62

Set Point Heat

70

Set Point Heat

70

Set Point Heat

70

Set Point Heat

70

Set Point Heat

70

Set Point Heat

62

 

Start Time

1800

Start Time

1800

Start Time

1800

Start Time

1800

Start Time

1800

Start Time

1800

Start Time

1800

 

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

System Mode

Cool

2

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Mode

Auto

Fan Speed

Med

Fan Speed

Med

Fan Speed

Med

Fan Speed

Med

Fan Speed

Med

Fan Speed

Med

Fan Speed

Med

 

 

Set Point Cool

84

Set Point Cool

84

Set Point Cool

84

Set Point Cool

84

Set Point Cool

84

Set Point Cool

84

Set Point Cool

84

 

Set Point Heat

62

Set Point Heat

62

Set Point Heat

62

Set Point Heat

62

Set Point Heat

62

Set Point Heat

62

Set Point Heat

62

63

Friedrich Air Conditioning Company

10001 Reunion Place, Suite 500

San Antonio, TX 78216

1-800-541-6645

www.friedrich.com

ROOM AIR CONDITIONERS

LIMITED WARRANTY

FIRST YEAR

ANY PART: If any part supplied by FRIEDRICH fails because of a defect in workmanship or material within twelve months from date of original purchase, FRIEDRICH will repair the product at no charge, provided room air conditioner is reasonably accessible for service. Any additional labor cost for removing inaccessible units and/or charges for mileage related to travel by a Service Agency that exceeds 25 miles one way will be the responsibility of the owner. This remedy is expressly agreed to be the exclusive remedy within twelve months from the date of the original purchase.

SECOND THROUGH FIFTH YEAR

SEALED REFRIGERANT SYSTEM:

because of a defect in workmanship or material within sixty months from date of purchase, FRIEDRICH will pay a labor allowance and parts necessary to repair the Sealed Refrigeration System; PROVIDED FRIEDRICH will not pay the cost of diagnosis of the problem, removal, freight charges, and transportation of the air conditioner to and from the Service Agency, and the reinstallation charges associated with repair of the Sealed Refrigeration System. All such cost will be the sole responsibility of the owner. This remedy is expressly agreed to be the exclusive remedy within sixty months from the date of the original purchase.

APPLICABILITY AND LIMITATIONS: This warranty is applicable only to units retained within the Fifty States of the U.S.A., District of Columbia, and Canada. This warranty is not applicable to:

1.A

2.Products on which the model and serial numbers have been removed.

3.Products which have defects or damage which results from improper installation, wiring, electrical current characteristics, or

installed in a corrosive atmosphere, default or delay in performance caused by war, government restrictions or restraints, strikes, material shortages beyond the control of FRIEDRICH, or acts of God.

OBTAINING WARRANTY PERFORMANCE: Service will be provided by the FRIEDRICH Authorized Dealer or Service Organizationin your area. They are listed at www.friedrich.com. If assistance is required in obtaining warranty performance, contact our customer support team. See above for contact information.

LIMITATIONS: THIS WARRANTY IS GIVEN IN LIEU OF ALL OTHER WARRANTIES. Anything in the warranty notwithstanding, ANY IMPLIED WARRANTIES OF FITNESS FOR PARTICULAR PURPOSE AND/OR MERCHANTABILITY SHALL BE LIMITED TO THE DURATION OF THIS EXPRESS WARRANTY. MANUFACTURER EXPRESSLY DISCLAIMS AND EXCLUDES ANY LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGE FOR BREACH OF ANY EXPRESSED OR IMPLIED WARRANTY.

Performance of Friedrich’s Warranty obligation is limited to one of the following methods:

1.Repair of the unit

2.A refund to the customer for the prorated value of the unit based upon the remaining warranty period of the unit.

3.Providing a replacement unit of equal value

NOTE: Some states do not allow limitations on how long an implied warranty lasts, or do not allow the limitation or exclusion of consequential or incidental damages, so the foregoing exclusions and limitations may not apply to you.

OTHER:

PROOF OF PURCHASE: Owner must provide proof of purchase in order to receive any warranty related services. All service calls for explaining the operation of this product will be the sole responsibility of the consumer.

All warranty service must be provided by an Authorized FRIEDRICH Service Agency, unless authorized by FRIEDRICH prior to repairs being made.(10-08)

64

CUSTOMER SATISFACTION and QUALITY ASSURANCE

Friedrich is a conscientious manufacturer, concerned about customer satisfaction, product quality, and controlling warranty costs. As an Authorized Service Provider you play a vital role in these areas. By adhering to the policies and procedures you provide us with vital information on each warranty repair you complete. This information is used to identify product failure trends, initiate corrective action, and improve product quality, thereby further reducing warranty expenses while increasing customer satisfaction levels.

FRIEDRICH AUTHORIZED PARTS DEPOTS

AAA Refrigeration Service

The Gabbert Company

Reeve Air Conditioning, Inc.

1322 24th Street, Suite B

6868 Ardmore

2501 South Park Road

Kenner, Louisiana 70062

Houston, Texas 77054

Hallandale, Florida 33009

504-464-7444

713-747-4110

954-962-0252

877-813-7444

800-458-4110

800-962-3383

Alamo Service Company

Johnstone Supply of Woodside

Valley of the Sun

1450 North Flores Street

27-01Brooklyn Queens Expway

4710 W. Dewey Drive

San Antonio, Texas 78212

Woodside, New York 11377

Las Vegas, NV 89118

210-227-2450

718-545-5464

702-547-4900

800-328-2450

800-431-1143

866-259-8500

A/C Warehouse

International Parts Depot

670 Avahl Street

Traco Corp.

Honolulu, Hi 96813

380 Paterson Road

808-545-3084

Carlstadt, NJ 07072

 

201-939-1600

TECHNICAL SUPPORT

CONTACT INFORMATION

FRIEDRICH AIR CONDITIONING CO.

10001 Reunion Place, Ste. 500, San Antonio, TX 78216 (210) 546-0500877-599-5665x 261 FAX (210)546-0630Email: tac@friedrich.com

www.friedrich.com

Printed in the U.S.A.

Kuhl Q-Serv/PartsMan(5-12)

65

FRIEDRICH AIR CONDITIONING CO.

10001 Reunion Place, Ste. 500, San Antonio, TX 78216 P 210-546-0500|F 210-546-0731

www.friedrich.com

Printed in the U.S.A.

KuhlQ-Serv/PartsMan(5-12)