Bryant manual 558J*05

Page 37

Table 33 – MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HZ

 

ELECTRIC HEATER

 

 

 

NO C.O. or UNPWRD C.O.

 

 

 

 

UNIT

 

 

 

 

 

 

 

 

 

 

 

 

 

---PHV---

IFM

 

 

MCA

NO P.E.

FLA

LRA

MCA

w/ P.E. (pwrd fr/unit)

LRA

TYPE

kW

FLA

MOCP

 

MOCP

FLA

 

 

 

 

 

DISC. SIZE

 

 

 

DISC. SIZE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---

---

33.7

50

 

32

133

35.6

 

50

35

135

 

 

 

3.3/4.4

15.9/18.3

33.7/33.7

50/50

 

32/32

133/133

35.6/35.6

 

50/50

35/35

135/135

 

 

STD

6.5/8.7

31.4/36.3

45.4/51.5

50/60

 

42/47

133/133

47.8/53.9

 

50/60

44/50

135/135

 

--- 60

9.8/13.0

46.9/54.2

64.8/73.9

70/80

 

60/68

133/133

67.1/76.3

 

70/80

62/70

135/135

 

 

 

 

 

 

13.1/17.4

62.8/72.5

84.6/96.8

90/100

 

78/89

133/133

87.0/99.1

 

90/100

80/91

135/135

 

--- 1

 

 

 

 

 

15.8/21.0

75.8/87.5

100.9/115.5

110/125

 

93/106

133/133

103.3/117.9

 

110/125

95/108

135/135

 

208/230

 

6.5/8.7

31.4/36.3

45.4/51.5

50/60

 

42/47

133/133

47.8/53.9

 

50/60

44/50

135/135

 

 

 

---

---

33.7

50

 

32

133

35.6

 

50

35

135

 

 

 

3.3/4.4

15.9/18.3

33.7/33.7

50/50

 

32/32

133/133

35.6/35.6

 

50/50

35/35

135/135

 

 

MED

9.8/13.0

46.9/54.2

64.8/73.9

70/80

 

60/68

133/133

67.1/76.3

 

70/80

62/70

135/135

 

 

 

 

 

 

 

 

13.1/17.4

62.8/72.5

84.6/96.8

90/100

 

78/89

133/133

87.0/99.1

 

90/100

80/91

135/135

 

 

 

15.8/21.0

75.8/87.5

100.9/115.5

110/125

 

93/106

133/133

103.3/117.9

 

110/125

95/108

135/135

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---

---

23.5

30

 

23

99

25.4

 

30

25

101

 

 

 

4.9/6.5

13.6/15.6

23.5/25.6

30/30

 

23/24

99/99

25.5/28.0

 

30/30

25/26

101/101

 

 

STD

6.5/8.7

18.1/20.9

28.8/32.3

30/35

 

26/30

99/99

31.1/34.6

 

35/35

29/32

101/101

 

 

 

12.0/16.0

33.4/38.5

47.9/54.3

50/60

 

44/50

99/99

50.3/56.6

 

60/60

46/52

101/101

 

60

 

15.8/21.0

43.8/50.5

60.9/69.3

70/70

 

56/64

99/99

63.3/71.6

 

70/80

58/66

101/101

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---

---

23.5

30

 

23

99

25.4

 

30

25

101

 

3---

 

 

 

 

 

4.9/6.5

13.6/15.6

23.5/25.6

30/30

 

23/24

99/99

25.5/28.0

 

30/30

25/26

101/101

 

---

 

 

 

 

MED

6.5/8.7

18.1/20.9

28.8/32.3

30/35

 

26/30

99/99

31.1/34.6

 

35/35

29/32

101/101

558J*05

208/230

 

 

HIGH

6.5/8.7

18.1/20.9

29.1/32.6

30/35

 

27/30

117/117

31.5/35.0

 

35/40

29/32

119/119

 

 

 

12.0/16.0

33.4/38.5

47.9/54.3

50/60

 

44/50

99/99

50.3/56.6

 

60/60

46/52

101/101

 

 

 

15.8/21.0

43.8/50.5

60.9/69.3

70/70

 

56/64

99/99

63.3/71.6

 

70/80

58/66

101/101

 

 

 

---

---

23.8

30

 

23

117

25.7

 

30

26

119

 

 

 

4.9/6.5

13.6/15.6

23.8/26.0

30/30

 

23/24

117/117

25.9/28.4

 

30/30

26/26

119/119

 

 

 

12.0/16.0

33.4/38.5

48.3/54.6

50/60

 

44/50

117/117

50.6/57.0

 

60/60

47/52

119/119

 

 

 

15.8/21.0

43.8/50.5

61.3/69.6

70/70

 

56/64

117/117

63.6/72.0

 

70/80

59/66

119/119

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---

---

10.7

15

 

10

49

11.7

 

15

12

50

 

 

 

6.0

7.2

11.6

15

 

11

49

12.9

 

15

12

50

 

 

STD

11.5

13.8

19.9

20

 

18

49

21.1

 

25

19

50

 

 

 

14.0

16.8

23.6

25

 

22

49

24.9

 

25

23

50

 

 

 

23.0

27.7

37.3

40

 

34

49

38.5

 

40

35

50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

 

---

---

10.7

15

 

10

49

11.7

 

15

12

50

 

 

6.0

7.2

11.6

15

 

11

49

12.9

 

15

12

50

 

3---

 

 

 

 

MED

11.5

13.8

19.9

20

 

18

49

21.1

 

25

19

50

 

---

 

 

 

 

14.0

16.8

23.6

25

 

22

49

24.9

 

25

23

50

 

460

 

 

 

 

 

23.0

27.7

37.3

40

 

34

49

38.5

 

40

35

50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---

---

11.2

15

 

11

58

12.2

 

15

12

59

 

 

 

6.0

7.2

12.3

15

 

11

58

13.5

 

15

12

59

 

 

HIGH

11.5

13.8

20.5

25

 

19

58

21.8

 

25

20

59

 

 

 

14.0

16.8

24.3

25

 

22

58

25.5

 

30

23

59

 

 

 

23.0

27.7

37.9

40

 

35

58

39.1

 

40

36

59

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3--- 60

STD

---

---

7.3

15

 

7

44

9.2

 

15

9

46

 

MED

---

---

7.3

15

 

7

44

9.2

 

15

9

46

 

575---

 

 

 

HIGH

---

---

7.4

15

 

7

50

9.3

 

15

10

52

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

558J

LEGEND:

 

 

CO

---

Convenient outlet

DISC

---

Disconnect

FLA

---

Full load amps

IFM

---

Indoor fan motor

LRA

---

Locked rotor amps

MCA

---

Minimum circuit amps

MOCP

--- Maximum over current protection

PE

---

Power exhaust

UNPWRD CO

---

Unpowered convenient outlet

NOTES:

 

 

1.In compliance with NEC requirements for multimotor and combina- tion load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker. Canadian units may be fuse or circuit breaker.

2.Unbalanced 3-Phase Supply Voltage

Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine the percentage of voltage imbalance.

% Voltage Imbalance = 100 x

max voltage deviation from average voltage

 

average voltage

 

Example: Supply voltage is 230-3-60

AB = 224 v

BC = 231 v

AC = 226 v

Average Voltage =

(224 + 231

+ 226)

=

681

 

 

 

3

 

3

 

 

 

=

227

 

 

 

Determine maximum deviation from average voltage.

(AB) 227 – 224 = 3 v

Maximum deviation is 4 v.

(BC) 231 – 227 = 4 v

Determine percent of voltage imbalance.

% Voltage Imbalance

= 100 x

4

 

 

 

227

 

 

 

 

 

= 1.76%

 

 

This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.

IMPORTANT: If the supply voltage phase imbalance is more than 2%, con- tact your local electric utility company immediately.

37

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Contents
Product Data Table of Contents Features and Benefits Unit Type Cooling Tons Factory Installed OptionsDesign Revision VoltageEconomizers FACTORY-INSTALLED Options and FIELD-INSTALLED AccessoriesDampers Economizer SensorsFactory Options AND/OR Accessories Thru-the-Base Connections Alternate Motors and DrivesElectric Heaters ARI Cooling Rating Tables Unit Cooling Electric Heaters Minimum Maximum Airflows Electric HeatMinimum Outdoor Sound dB Sound Performance Table125 250 500 1000 2000 4000 8000 Tons Physical Data CoolingElectric Heat Electrical Data Tons CRSINGLE***A00 Part Number Power 102A00 6.0 104B00 10.5 9.6 105A00 16.0 12.0/14.7 038 Base Unit Dimensions Chassis Curbs & Weights Dimensions ChassisCurb Installation Detail Typical Application Data Determine cooling and heating loads Selection Procedure with 558J*07 Example558J*04 105 115 EAT dB Ambient Temperature558J*05 105 115 EAT dB 558J*06 105 115 EAT dB 558J*07 105 115 EAT dB TonsGeneral fan performance notes Static Pressure Adders Factory Options and/or Accessories558J*04 FAN PerformanceCFM RPM BHP FAN Performance 558J*05 Medium Static Option High Static Option 14941485 1512724 558J*06765 2250 980 1066 1146 1220 1291 2375 1024 907 558J*07Unit MOTOR/DRIVE Motor Pulley Turns Open Combo Pulley Adjustment Cfm ECONOMIZER, Barometric Relief and PE PerformanceElectrical Information FLA Electric Heater MCA/MOCP Determination no C.O. or Unpwrd C.OIFM MCA No P.E FLA LRA Type FLA Mocp DISC. Size558J*05 IFM No P.E FLA LRA MCA/MOCP Determination W/ Pwrd C.OType FLA MCA Mocp DISC. Size 15.5 16.5 11.5 Type FLA MCA Mocp DISC. Size LRA IFM No P.EIFM MCA No P.E LRA Unit IFM No P.E PH---HZ Electric Heater40.0 41.3 12.9 13.9 14.4 15.6 Typical Power Diagram Economizer Notes Typical Wiring DiagramGeneral Sequence of OperationElectro-mechanical units with no economizer Electro-mechanical units with an economizerHvac Guide Specifications Guide Specifications 558J*04-0723 09 93.13 Insert Sequence of Operation 558J 558J 558J 558J 558J 558J Catalog No. PDS558J---01
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