Carrier 50EK, 50EJ, 50EW, 50EY installation instructions Motor Limitations, User Dened Set Points

Page 39

Table 16 Ð Motor Limitations

STANDARD EFFICIENCY MOTORS

Nominal

Maximum

 

 

Maximum Amps

 

 

Maximum

Motor

Hp

Bhp

208

230

460

575

Watts

Efficiency

5

5.9

17.94

16.99

Ð

Ð

5,348

82.3

5.9

Ð

Ð

8.50

5.78

5,240

84.0

 

7.5

8.7

25.52

24.36

Ð

Ð

7,717

84.1

9.5

Ð

Ð

13.30

9.63

8,549

82.9

 

10

10.2

26.93

25.50

Ð

Ð

8,879

85.7

11.8

Ð

Ð

14.75

11.33

10,284

85.6

 

15

15.3

42.84

40.80

Ð

Ð

13,686

83.4

18.0

Ð

Ð

24.00

18.00

15,891

84.5

 

20

22.4

59.36

56.00

Ð

Ð

19,032

87.8

23.4

Ð

Ð

29.25

22.82

19,950

87.5

 

25

28.9

76.30

72.83

Ð

Ð

24,499

88.0

29.4

Ð

Ð

37.04

28.69

25,181

87.1

 

30

35.6

92.56

87.81

Ð

Ð

29,378

90.4

34.7

Ð

Ð

42.80

 

n/a

29,316

88.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HIGH EFFICIENCY MOTORS

 

 

 

 

 

 

 

 

 

Nominal

Maximum

 

 

Maximum Amps

 

 

Maximum

Motor

Hp

Bhp

208

 

230

 

460

 

575

Watts

Efficiency

 

5.9

16.76

 

13.92

 

Ð

 

Ð

5,030

87.5

5

5.9

Ð

 

Ð

 

6.96

 

Ð

5,030

87.5

 

5.9

Ð

 

Ð

 

Ð

 

5.66

4,918

89.5

 

8.7

26.10

 

22.27

 

Ð

 

Ð

7,334

88.5

7.5

9.5

Ð

 

Ð

 

12.16

 

Ð

8,008

88.5

 

9.5

Ð

 

Ð

 

Ð

 

9.50

7,728

91.7

 

10.2

28.56

 

24.89

 

Ð

 

Ð

8,502

89.5

10

11.8

Ð

 

Ð

 

14.40

 

Ð

9,836

89.5

 

11.8

Ð

 

Ð

 

Ð

 

11.68

9,600

91.0

 

15.3

45.08

 

39.17

 

Ð

 

Ð

12,543

91.0

15

18.0

Ð

 

Ð

 

23.04

 

Ð

14,756

91.0

 

18.0

Ð

 

Ð

 

Ð

 

18.12

14,439

93.0

 

22.4

63.84

 

55.55

 

Ð

 

Ð

18,363

91.0

20

23.4

Ð

 

Ð

 

29.02

 

Ð

19,183

91.0

 

23.4

Ð

 

Ð

 

Ð

 

23.17

18,650

93.6

 

28.9

80.69

 

70.05

 

Ð

 

Ð

23,511

91.7

25

29.4

Ð

 

Ð

 

35.63

 

Ð

23,918

91.7

 

29.4

Ð

 

Ð

 

Ð

 

28.81

23,432

93.6

 

35.6

102.65

 

89.00

 

Ð

 

Ð

28,742

92.4

30

34.7

Ð

 

Ð

 

43.38

 

Ð

28,015

92.4

 

34.7

Ð

 

Ð

 

Ð

 

33.89

27,656

93.6

 

 

 

 

 

 

 

 

 

 

 

LEGEND

BHP Ð Brake Horsepower

NOTE: Extensive motor and electrical testing on the Carrier units has ensured that the full horsepower range of the motor can be utilized with con®dence. Using your fan motors up to the horsepower ratings shown on the Motor Limi- tations table will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

Table 17 Ð User De®ned Set Points

 

SET POINT

 

FORMAT

DESCRIPTION

LIMITS

DEFAULT

 

 

OHSP

 

xx.xF

Occupied Heat Set Point

55 to 80 F

68

 

 

OCSP

 

xx.xF

Occupied Cool Set Point

55 to 80 F

78

 

 

UHSP

 

xx.xF

Unoccupied Heat Set Point

40 to 80 F

55

 

 

UCSP

 

xx.xF

Unoccupied Cool Set Point

75 to 95 F

90

 

 

SASP

 

xx.xF

Supply Air Set Point

45 to 70 F

55

 

 

OATL

 

xx.xF

Hi OAT Lockout Temperature

55 to 75 F

65

 

 

NTLO

 

xx.xF

Unoccupied OAT Lockout Temperature

40 to 70 F

50

 

 

RTIO

 

xx.x

Reset Ratio

0 to 10

3

 

 

LIMT

 

xx.x^F

Reset Limit

0 to 20 F

10

 

 

MDP

 

xxx%

Minimum Damper Position

0 to 100%

20

 

 

IAQS

 

xxxx

IAQ Set Point

1 to 5000

650

 

 

UHDB

 

xx.x^F

Unoccupied Heating Deadband

0 to 10

1

 

 

UCDB

 

xx.x^F

Unoccupied Cooling Deadband

0 to 10

1

 

 

LTMP

 

xx.xF

Low Temp. Min. Position

0 to 100

10

 

 

HTMP

 

xx.xF

High Temp. Min. Position

0 to 100

35

 

 

PES1

 

xx.xF

CV Power Exhaust Stage 1 Point

0 to 100

25

 

 

PES2

 

xx.xF

CV Power Exhaust Stage 2 Point

0 to 100

75

 

 

 

 

 

 

 

 

 

 

LEGEND

 

 

 

 

CV

Ð Constant Volume

 

 

 

 

IAQ

Ð

Indoor Air Quality

 

 

 

 

OAT

Ð

Outdoor Air Temperature

 

 

 

 

39

Image 39
Contents Installation, Start-Up Service Instructions Roof Curb Sizes Unit Leveling Tolerances DimensionsRoof Curb Sizes Unit Size Operating Corner Weight 50EJ/EK Base Unit Dimensions, 50EJ/EK024-034Unit Size Operating Corner Weight Base Unit Dimensions, 50EJ038-048 and 50EK044Unit Size Operating Corner Weight 50EW/EY Base Unit Dimensions, 50EW/EY024-034Weight Base Unit Dimensions, 50EW038-048 and 50EY044Rigging Label Model Weight 50EJ/EK/EW/EYUnit 50EJ,EK,EW,EY Physical Data4282 4508 4795 Evaporator Fan Motor Data Make Unit Duct ConnectionsSAT Field Control Remote Start/Stop CCN COMSIO Make Electrical Connections Field Power Wiring ConnectionsPage FLA LRA MCA MOCP² Electrical Data Ð 50EJ,EK,EW,EY024-04824.2 187 254 57.1 266 39.1 228 46.2 225/200 82.4 100 12.6 23.6 95.0 110 43.3 86.6 104.1 187 254 69.2 345 59.4 187 254 82.1 446 69.2 345 74.8 Control Box Diagram Sizes Make Outdoor-Air Inlet Adjustments CCN Connection Approved Shielded CablesColor Code Recommendations Adding Seal Strip to Top of Hood Sides Adding Seal Strip to Hood Top Mounting Flange Attaching Seal Strip To Filter Cover Barometric Relief Damper and Power Exhaust Mounting Details Pressure Transducer Locations Ð Motormaster III Sensor Location VFD Set Point Pressure Voltage VFDSET Point Direct Digital Controls DIP Switch Congura Potentiometer Signal LevelsPower Exhaust Default Set Points POS Setting OpenSetting ClosedSequence of Operation Airflow Fan Performance, 50EJ/EK024-034 Ð Vertical Discharge Units16,000 Fan Performance, 50EJ048 Ð Vertical Discharge Units Air Quantity LimitsCFM CV User Dened Set Points Motor LimitationsPage Heat Interlock Relay Wiring Cooling Capacity Staging Table CV Units with 2 Compressors Stages EconomizerStages Evaporator Fan Service and Replacement LubricationManufacturer Lubricant Belt Tension Adjustment Ð To adjust belt tension Condenser-Fan AdjustmentEvaporator-Fan Motor Replacement Cooling Charging Chart Sizes Troubleshooting Typical Refrigerant Circuiting 50EJ,EK,EW,EY038,044 Typical Refrigerant Circuiting 50EJ,EW048 Control Board LED Alarms LED Error Description Troubleshooting Blinks Code CommentsDIP I/O Channel Designations Base Module Ð CVBase Module Ð VAV IAQ I/O Channel Designations Expansion Module Ð CV and VAVPage Page Packaged Service Training START-UP Checklist General START-UP Checklist