Friedrich 2003 User Manual

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Service Manual

2003

Room Air Conditioners

RACServMn (7-03)

Table of Contents

 

Unit Identification ...............................................

3

Unit Specifications .............................................

4

Unit Performance .........................................

5-11

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

12

Electrical Rating Tables ...................................

13

Compressor .....................................................

14

Thermal Overload (External) ...........................

14

Thermal Overload (Internal).............................

15

Fan Motor ........................................................

15

System Switches/Controls ..........................

15-24

Thermostats (Indoor) ..................................

24-25

Thermostats (Defrost) ................................

25-26

Resistor (Heat Anticipator) ...............................

26

Capacitor, Run .................................................

26

Check Valve ....................................................

27

Heat Pump Reversing Valve ............................

27

Solenoid Coil (Heat Pump Models) ..................

28

Valve, Drain Pan ..............................................

29

Heating Element ..............................................

29

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

29-30

Refrigerant Charging ..................................

30-31

Undercharged Refrigerant Systems ...........

31-32

Overcharged Refrigerant Systems ..................

32

Restricted Refrigerant System .........................

33

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

34

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

34-45

Wiring Diagrams

 

"RS", "RM",................................................... 46

"SQ" .............................................................

47

"KQ" ........................................................

48-49

"XQ" .............................................................

50

"YQ" .............................................................

51

"SC" .............................................................

52

"SS", "SM" ....................................................

53

"SL" ..............................................................

54

"KS", "KM", "KL" ...........................................

55

"ES", "EM", "EL", "EK" ..................................

56

"YS13", "YM", "YL" .......................................

57

"YS09" ..........................................................

58

"EQ" .............................................................

59

"WS".............................................................

60

"WE".............................................................

61

"WY" .............................................................

62

Testing XQ and QME Boards ..........................

63

Typical Unit Components

Fresh Air

Compressor

Capillary Tube

Liquid Filter Driers

Reversing Valve

Condenser Coil

(some models)

 

Front Cover

Discharge Air

 

System Switches

Outdoor Grille

 

Evaporator Coil

Sleeve

 

Return Air Grille/Filter

 

Blower Wheel

 

Blower Motor

Condenser Fan Blade

 

Basepan

Introduction

This service manual is designed to be used in conjunction with the installation manuals provided with each air conditioning system component.

This service manual was written to assist the professional RAC service technician to quickly and accurately diagnose and repair malfunctions.

This manual will deal with subjects in a general nature. (i.e. all text will not pertain to all models).

IMPORTANT: It will be necessary for you to accurately identify the unit you are servicing, so you can be certain of a proper diagnosis and repair. (See Unit Identification.)

The information contained in this manual is intended for use by a qualified service technician who is familiar with the safety procedures required in installation and repair, and who is equipped with the proper tools and test instruments.

Installation or repairs made by unqualified persons can result in hazards subjecting the unqualified person making such repairs to the risk of injury or electrical shock which can be serious or even fatal not only to them, but also to persons being served by the equipment.

If you install or perform service on equipment, you must assume responsibility for any bodily injury or property damage which may result to you or others. Friedrich Air Conditioning Company will not be responsible for any injury or property damage arising from improper installation, service, and/or service procedures.

2

UNIT IDENTIFICATION

Model Number Code

S S 08 J 1 0 R

1st Digit – Function

S = Straight Cool, Value Series

C = Straight Cool, Budget

Series

Y = Heat Pump

E = Electric Heat

K = Straight Cool, Challenger

Series

W = Thru-theWall,

WallMaster Series

2nd Digit

C = Casement

P = PowerMiser "Portable" Q = Q-Star

M = Medium Chassis L = Large Chassis W = Built -In

H = HazardGard

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

Heating BTU/Hr capacity listed in the Specification/Performance

Data Section

RAC Serial Number Identification Guide

8th Digit – Engineering

Major change

7th Digit – Options

0 = Straight Cool & Heat Pump Models

1 = 1 KW Heat Strip, Normal

3 = 3 KW Heat Strip, Normal

4 = 4 KW Heat Strip, Normal

5 = 5 KW Heat Strip, Normal

8 = 8 KW Heat Strip, Normal

6th Digit – Voltage

1 = 115 Volts

2 = 230 Volts

3 = 230-208Volts

5th Digit

Alphabetical Modifier

Serial Number

 

L

C

G

S

00001

Decade Manufactured

 

 

 

 

 

L=0

C=3

F=6

J=9

 

 

 

Production Run Number

 

 

 

 

 

 

 

A=1

D=4

G=7

 

 

 

 

 

B=2

E=5

H=8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Year Manufactured

 

 

 

 

PRODUCT LINE

A=1

D=4

G=7

K=0

 

 

 

S=RAC

B=2

E=5

H=8

 

 

 

 

P=PTAC

C=3

F=6

J=9

 

 

 

 

E=EAC

 

 

 

 

 

V=VPAK

Month Manufactured

 

 

 

 

A=Jan

D=Apr

G=Jul

K=Oct

 

 

 

H=Split

B=Feb

E=May

H=Aug

L=Nov

 

 

 

 

C=Mar

F=Jun

J=Sep

M=Dec

 

 

 

 

 

 

 

 

 

 

 

 

3

4

EQ PERFORMANCE DATA

PERFORMANCE

EVAPORATOR AIR

OPERATING

ELECTRICAL

R-22

BREAKER

DATA*

TEMP. DEG. F.

PRESSURES

RATINGS

REFRIG.

FUSE

Cooling

 

 

 

 

 

 

 

 

Discharge

Temp.

Suction

Discharge

Amps

Locked

Charge in

60 Hertz

 

Air

Drop F.

 

 

 

Rotar Amp

OZ.

Amps

 

 

 

 

 

 

 

 

 

EQ08J11-A

50.5

29.5

72

262

7.5

39.2

20

15

EQ08J11-B

50.5

29.5

74

259

7.5

39.2

20

15

 

 

XQ PERFORMANCE DATA

 

 

 

 

 

 

 

 

 

 

DATA*

EVAPORATOR AIR

OPERATING

ELECTRICAL

R-22

BREAKER

Cooling

TEMP. DEG. F.

PRESSURES

RATINGS

REFRIG.

FUSE

 

Discharge

Temp.

Suction

Discharge

Amps

Locked

Charge in

60 Hertz

 

Air

Drop F.

 

 

 

Rotar Amp

OZ.

Amps

XQ05J10B

55.45

24.55

79

245

4.6

34

20

15

XQ06J10-A

51.45

28.55

82

262

5.1

35

21

15

XQ06J10-B

51.45

28.55

79

254

5.1

35

21

15

XQ07J10-1

52.22

27.95

77

250

6.5

37

24

15

XQ08J10-1

50.5

29.5

72

262

4.5

38

20

15

XQ08J10-A

50.5

29.5

72

262

4.5

38

21

15

 

 

 

 

 

 

 

 

 

 

 

SQ PERFORMANCE DATA

 

 

 

PERFORMANCE

EVAPORATOR AIR

OPERATING

ELECTRICAL

R-22

BREAKER

DATA*

TEMP. DEG. F.

PRESSURES

RATINGS

 

REFRIG.

FUSE

Cooling

Discharge

Temp.

Suction

Discharge

Amps

Locked

Charge in

60 Hertz

 

Air

Drop F.

 

 

 

Rotar Amp

OZ.

Amps

SQ05J10B-B

55.45

24.55

79

245

4.4

34.'0

16.'0

15

SQ06J10B-A

51.45

28.55

82

262

5.2

35.'0

15.7

15

SQ06J10B-B

51.45

28.55

79

254

5.2

35.'0

15.7

15

SQ08J10C-1

50.5

29.5

72

262

7.5

39.2

19.5

15

 

 

KQ-YQPERFORMANCE DATA

 

 

 

PERFORMANCE

EVAPORATOR AIR

OPERATING

ELECTRICAL

R-22

BREAKER

DATA*

TEMP. DEG. F.

PRESSURES

RATINGS

REFRIG.

FUSE

Cooling

Discharge

Temp.

Suction

Discharge

Amps

Locked

Charge in

60 Hertz

 

Air

Drop F.

 

 

 

Rotar Amp

OZ.

Amps

KQ05J10B-B

56.34

28.66

73

251

5.2

29.'0

15.'0

15

KQ05E10-B

56.34

28.66

79

245

5.2

29.'0

15.'0

15

KQ05E10-C

56.34

28.66

79

245

5.2

29.'0

15.'0

15

KQ06J10B-A

58.02

21.98

82

262

5.8

35.'0

15.'0

15

KQ06J10B-B

58.02

21.98

80

269

5.8

35.'0

19.'0

15

KQ06E10-A

58.02

21.98

82

262

5.8

35.'0

15.'0

15

KQ06E10-B

58.02

21.98

79

254

5.8

35.'0

15.'0

15

YQ06J10B-A

54.1

25.9

81

267

5.7

39.2

19.'0

15

 

 

 

 

 

 

 

 

 

*Rating Conditions: 80 degree F. Room Air Temperature and 50% Relative Humidity with 95 degree F. Outside Air Temperature and 40% Relative Humitidy

5

RS-RMPERFORMANCE DATA

PERFORMANCE

 

EVAPORATOR AIR

OPERATING

ELECTRICAL

R-22

BREAKER

DATA*

 

TEMP. DEG. F.

PRESSURES

RATINGS

REFRIG.

FUSE

Cooling

 

 

 

 

 

 

 

 

 

 

Discharge

Temp.

Suction

Discharge

Amps

Locked

Charge in

60 Hertz

 

 

Air

Drop F.

 

 

 

Rotar Amp

OZ.

Amps

 

 

 

 

 

 

 

 

 

 

RS10J10-C

 

61

19

82

248

7.5

44

26

15

RS12J10A-B

 

57

23

83

271

9.8

54

30

15

RS15J10-A

 

57

23

77

279

11.1

42

29.5

15

RS16J30A-A

 

56.5

24

77

296

7.2

42

30

15

RS18J30-A

 

56

24

72

293

8.7

42

48

15

RM24J30-A

 

57

23.65

68

301

12.2

44

54

15

 

 

 

 

 

 

 

 

 

 

 

 

 

YS-YM-YLPERFORMANCE DATA

 

 

 

 

 

 

 

 

 

PERFORMANCE

 

EVAPORATOR AIR

OPERATING

ELECTRICAL

R-22

BREAKER

DATA*

 

TEMP. DEG. F.

PRESSURES

RATINGS

REFRIG.

FUSE

Cooling

 

Discharge

Temp.

Suction

Discharge

Amps

Locked

Charge in

60 Hertz

 

 

Air

Drop F.

 

 

 

Rotar Amp

OZ.

Amps

YS09J10B-A

 

59

21

90

243

7.7

39.2

25

15

YS12J33-A

 

56

24

80

264

5.2/5.6

30

28

20

YM18J34B-A

 

53

27

74

284

8.7/9.2

42

54

30

YL24J35C-A

 

55

25

72

260

10.0/12.0

61

74

30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* Rating Conditions:

80 degree

F. Room

Air Temperature and 50% Relative Humidity with

 

 

 

 

 

 

 

 

 

 

 

95 degree F. Outside Air Temperature at 40% Relative Humidity.

6

PERFORMANCE

 

EVAPORATOR AIR

OPERATING

ELECTRICAL

R-22

BREAKER

DATA*

 

TEMP. DEG. F.

PRESSURES

RATINGS

REFRIG.

FUSE

Cooling

 

 

 

 

 

 

 

 

 

 

Discharge

Temp.

Suction

Discharge

Amps

Locked

Charge in

60 Hertz

 

 

Air

Drop F.

 

 

 

Rotar Amp

OZ.

Amps

 

 

 

 

 

 

 

 

 

 

ES12J33B-A

 

58

22

82

265

5.76.6

26.3

28

20

ES16J33A-A

 

53

27

77

269

7.5/8.0

42.'0

30

20

EM18J34B-A

 

55

25

71

267

8.6/9.2

42.'0

40.5

30

EL25J35-A

 

55

25

75

284

11.5/12.6

61.'0

48.5

30

EL35J35-A

 

52

28

72

317

18/20

94.'0

60

30

EL35J35-B

 

52

28

72

317

18/20

94.'0

60

30

 

 

 

 

 

 

 

 

 

 

PERFORMANCE

 

Heat Rise

 

 

 

 

 

 

 

DATA heating

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ES12J33B-A

 

30.5

 

 

 

16/14.7

 

 

 

ES16J33A-A

 

30.5

 

 

 

16/14.7

 

 

 

EM18J34B-A

 

28.3

 

 

 

19.5/17

 

 

 

EL25J35-A

 

28.6

 

 

 

24/22/4

 

 

 

EL35J35-A

 

22.9

 

 

 

24/22.4

 

 

 

EL35J35-B

 

22.9

 

 

 

24/22.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KS-KMPERFORMANCE DATA

 

 

 

 

 

 

 

 

 

DATA*

 

EVAPORATOR AIR

OPERATING

ELECTRICAL

R-22

BREAKER

Cooling

 

TEMP. DEG. F.

PRESSURES

RATINGS

REFRIG.

FUSE

 

 

Discharge

Temp

 

 

Amps

Locked

Charge in

60 Herts

 

 

Air

Drop F.

 

 

 

Rotar Amp

OZ.

Amps

KS10E10-A

 

61

19

82

248

9.1

48.3

26.08

15

KS10J10-B

 

61

19

80

263

9.1

48.3

26.88

15

KS12E10-A

 

57

23

83

271

10.8

54.'0

28

15

KS12J10B-A

 

57

23

84

268

10.8

54.'0

28

15

KS15J10-A

 

55.78

23.52

77

279

12.'0

67.'0

29.5

15

KS12J30B-A

 

57

23

76

285

6.2

26.'0

30.08

15

KS18J30-A

 

56

24

72

293

8.7

48

48

15

KM20J30-A

 

55

24

70

279

9.9

48

48

15

KM24J30-A

 

55

25

68

301

15.'0

71.'0

54.08

15

 

 

 

 

 

 

 

 

 

 

* Rating Conditions:

80 degree

F. Room Air Temperature and 50% Relative Humidity with

 

 

 

 

 

 

 

 

 

 

 

95 degree F. Outside Air Temperature at 40% Relative Humidity.

7

SS PERFORMANCE DATA

PERFORMANCE

EVAPORATOR AIR

OPERATING

ELECTRICAL

R-22

BREAKER

DATA*

TEMP. DEG. F.

PRESSURES

RATINGS

REFRIG.

FUSE

Cooling

 

 

 

 

 

 

 

 

Discharge

Temp.

Suction

Discharge

Amps

Locked

Charge in

60 Hertz

 

Air

Drop F.

 

 

 

Rotar Amp

OZ.

Amps

 

 

 

 

 

 

 

 

 

SS08J10R-B

61.4

18.6

87

251

6.7

29

39.'0

15

SS08J10R-A

61.4

18.6

84

248

6.7

36.2

24.'0

15

SS09J10C-A

57.8

22.2

82

254

7.4

44

22.6

15

SS10J10AR-A

57.22

22.78

84

245

7.5

42

26.'0

15

SS12J10AR-B

57.2

22.8

83

271

9.8

44

30.'0

15

SS14J10R-A

57.22

22.9

77

279

12

61

29.5

15

SS12J30D-A

57.2

22.8

82

265

5.0/5.2

21

27.5

20

SS16J30A-A

56.9

23

77

296

7.5/8.0

28

30.'0

20

SS18J30R-A

56.9

23

77

293

8.1/8.7

45

48

20

 

 

 

 

 

 

 

 

 

SM-SLPERFORMANCE DATA

PERFORMANCE

 

EVAPORATOR AIR

OPERATING

ELECTRICAL

R-22

BREAKER

DATA*

 

TEMP. DEG. F

PRESSURES

RATINGS

REFRIG.

FUSE

Cooling

 

Discharge

Temp

Suction

Discharge

Amps

Locked

Charge in

60 Hertz

 

 

Air

Drop F.

 

 

 

Rotar Amp

OZ.

Amps

SM20J30-A

 

52.58

27.42

70

279

9.9

43

47

20

SM24J30-A

 

54.86

25.14

68

301

12.2

68

54

20

SL25J30-A

 

52.32

27.68

75

284

11.5/12.6

68

48.5

20

SL28J30B-A

 

52.1

26.9

74

278

13.0/14.2

88

50

20

SL35J30-A

 

52.93

27.07

72

317

18.0/20.0

92

60

30

SL35J30-B

 

52.93

27.07

72

317

18.0/20.0

92

60

30

 

 

 

 

 

 

 

 

 

 

* Rating Conditions:

 

80 degree F. Room Air Temperature and 50% Relative Humidity with

 

95 degree F. Outside Air Temperature at 40% Relative Humidity.

8

WS PERFORMANCE DATA

PERFORMANCE

EVAPORATOR AIR

OPERATING

ELECTRICAL

R-22

BREAKER

DATA*

TEMP. DEG. F.

PRESSURES

RATINGS

REFRIG.

FUSE

Cooling

 

 

 

 

 

 

 

 

Discharge

Temp.

Suction

Discharge

Amps

Locked

Charge in

60 Hertz

 

Air

Drop F.

 

 

 

Rotar Amp

OZ.

Amps

 

 

 

 

 

 

 

 

 

WS07A10E-B

59.5

19.5

84

300

7.'0

32

19

15

WS07A10E-C

59.5

19.5

85

299

7.'0

32

28

15

WS07A10E-D

59.5

19.5

85

299

7.'0

32

20

15

WS10A10-A

58

22

83

307

9.8

48

25

15

WS10A10-B

58

22

83

307

9.8

48

26

15

WS12A10E-B

55

25

81

290

11.9

54

28.5

15

WS13A10-A

55

25

79

281

12

55

36

15

WS09A30E-B

58

22

86

302

4.7

44

22

15

WS12A30E-A

47.1

32.9

80

308

11.9

54

27.5

15

WS12A30E-B

46

33

80

305

11.9

54

42

15

WS15A30-A

47

33

72

310

8.5

42

43.5

15

 

 

 

 

 

 

 

 

 

 

 

WE-WYPERFORMANCE DATA

 

 

 

 

 

 

 

 

 

DATA*

EVAPORATOR

OPERATION

ELECTRICAL

R-22

BREAKER

Cooling

TEMP. DEG. F.

PRESSURES

RATINGS

REFRIG.

FUSE

 

Discharge

Temp.

Suction

Discharge

Amps

Locked

Charge in

60 Hertz

 

Air

Drop F.

 

 

 

Rotar Amp

OZ.

Amps

WE09A33E-C

58

22

86

302

4.7

44

23

20

WE12A33E-B

55

25

80

308

6.5

54

27.5

20

WE15A33-A

47.1

32.9

71

310

8.5

42

43.5

20

WY09A33F-A

58

22

83

288

4.3

44

24

20

WY12A33G-A

55

25

81

295

6.2

54

37

20

 

 

 

 

 

 

 

 

 

PERFORMANCE

Heat Rise

 

 

 

 

 

 

 

DATA heating

 

 

 

 

 

 

 

 

WE15A33-A

40

 

 

 

16.2

 

 

 

WE09A33E-C

39

 

 

 

14.7

 

 

 

WE12A33E-B

36

 

 

 

14.7

 

 

 

 

 

 

 

 

 

 

 

 

* Rating Conditions: 80 degree F. Room Air Temperature and 50% Relative Humidity 95 degree F. Outside Air Temperature at 40% Relative Humidity

9

SPECIFICATIONS

SC06H10E

 

 

BTUH (Cooling)

5950

 

 

E.E.R. (Cooling)

8.0

 

 

Volts

115

 

 

Amperes (Cooling)

6.8

 

 

Total Watts (Cooling)

760

 

 

Hertz

60

 

 

Fuse/Breaker Size

15

 

 

Fan RPM

1595

 

 

Evaporator Air CFM

125

 

 

Dehumidification Pts/Hr

2.0

 

 

Width

1411/16"

 

 

Height

1013/16"

 

 

Depth

27"

 

 

Minimum Ext. Into Room

2½"

 

 

Minimum Ext. To Outside

15½"

 

 

Net Weight

70

 

 

Shipping Weight

80

 

 

PERFORMANCE DATA*

SC06H10E

 

 

 

 

DISCHARGE

56.1

EVAPORATOR AIR

AIR

 

 

 

 

TEMP. °F

TEMP

23.9

 

DROP °F

 

 

 

 

OPERATING

SUCTION

72

PRESSURES

DISCHARGE

293

 

 

 

 

AMPS

6.8

ELECTRICAL

 

 

 

 

 

RATINGS

LOCKED

35.0

 

ROTOR AMPS

 

 

 

 

R-22

CHARGE IN

14

REFRIG.

OUNCES

 

 

 

 

COMP.

CHARGE IN

9.8

OIL

FLUID OZ.

 

 

 

 

* Rating Conditions:

80°F Room Air Temperature and 50% Relative Humidity with 95°F Outside Air Temperature at 40% Relative Humidity.

PERFORMANCE DATA

*YS09J10B-A

**YS12J33-A

**YM18J34A-A

**YL24J35C-A

(Heating)

 

 

 

 

 

 

 

 

 

 

 

AHAM

@ 70°F Inside 47°F Outside

8300

12400/12300

17200/17200

23000/22800

 

@ 70°F Inside 35°F Outside

 

10700/8900

13000/10600

17300/14300

 

 

 

 

 

Evaporator Air Temperature Rise

 

 

 

 

 

@ 70°F Inside 47°F Outside

19.62

31.38

24.74

31.71

 

@ 70°F Inside 35°F Outside

 

28.69/23.87

24.46/20.22

24.38/20.16

 

 

 

 

 

 

AMPS

@ 70°F Inside 47°F Outside

6.7

6.0/6.5

8.5/9.0

10.4/11.5

 

@ 70°F Inside 35°F Outside

 

16.0/14.7

19.5/17.0

24.0/22.4

 

 

 

 

 

 

Watts

@ 70°F Inside 47°F Outside

760

1340/1300

1880/1820

2350/2340

 

@ 70°F Inside 35°F Outside

 

3500/2900

5500/4650

5500/4650

 

 

 

 

 

Suction/Head PSIG

 

 

 

 

 

@ 70°F Inside 47°F Outside

53.5/222

52.5/251

53/225

54/236.5

 

 

 

 

 

 

*Do not operate below 37° ambient.

**Heating element comes on at 35°F outside ambient and compressor shuts off.

10