548F036-120

PERFORMANCE DATA (cont)

COOLING CAPACITIES (cont)

548F120 (10 TONS)

 

Temp (F)

 

 

 

 

 

 

Indoor Entering Air — Cfm/BF

 

 

 

 

 

Outdoor

 

2800/0.11

 

 

3750/0.16

 

 

4100/0.18

 

 

4700/0.21

 

 

Entering Air

 

 

 

 

 

 

Indoor Entering Air — Ewb (F)

 

 

 

 

 

 

(Edb)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

72

 

67

62

72

 

67

62

72

67

62

72

67

62

 

 

 

 

 

75

 

TC

127.4

 

120.4

110.6

134.2

 

126.2

116.2

135.6

127.4

117.8

137.0

129.0

120.6

 

SHC

60.0

 

76.4

91.0

66.2

 

86.0

104.4

67.8

89.0

108.8

70.2

93.4

115.6

 

 

kW

8.30

 

8.18

7.88

8.54

 

8.34

8.04

8.60

8.36

8.10

8.64

8.38

8.20

85

 

TC

124.6

 

116.2

106.4

131.0

 

122.0

112.4

132.4

123.6

114.0

133.8

126.0

116.4

 

SHC

59.2

 

74.6

89.4

65.4

 

84.8

103.6

67.4

88.4

107.4

70.0

94.2

112.8

 

 

kW

9.24

 

9.04

8.74

9.50

 

9.24

8.98

9.54

9.28

9.02

9.60

9.36

9.08

95

 

TC

121.8

 

112.0

102.2

126.2

 

117.4

107.4

127.8

119.0

109.4

130.0

121.2

112.6

 

SHC

58.4

 

73.2

87.4

63.8

 

83.4

101.0

66.0

87.2

104.8

69.6

93.4

110.2

 

 

kW

10.34

 

10.04

9.66

10.46

 

10.18

9.90

10.52

10.26

9.96

10.62

10.36

10.08

105

 

TC

116.9

 

107.2

97.6

122.4

 

112.4

102.8

123.6

113.8

105.0

124.6

115.6

108.4

 

SHC

56.6

 

71.4

85.4

63.0

 

82.0

98.4

65.0

85.8

101.8

67.8

91.4

106.2

 

 

kW

11.38

 

11.08

10.66

11.64

 

11.28

10.90

11.68

11.32

11.00

11.68

11.38

11.16

115

 

TC

112.0

 

102.0

92.8

116.6

 

107.0

98.0

118.0

108.2

100.2

120.0

110.0

103.8

 

SHC

55.0

 

69.6

83.2

61.2

 

80.2

95.2

63.6

84.2

98.0

67.4

90.2

101.8

 

 

kW

12.58

 

12.18

11.74

12.78

 

11.42

12.00

12.84

12.48

12.12

12.96

12.56

12.30

125

 

TC

106.4

 

96.8

87.8

110.4

 

101.2

93.6

111.6

102.2

95.8

113.6

103.8

99.0

 

SHC

53.2

 

67.4

80.8

59.2

 

78.4

91.4

61.4

82.2

94.0

65.4

88.0

97.2

 

 

kW

13.84

 

13.36

12.90

13.96

 

13.62

13.22

14.02

13.68

13.34

14.14

13.76

13.54

LEGEND

BF — Bypass Factor Edb — Entering Dry-Bulb Ewb — Entering Wet-Bulb

kW — Compressor Motor Power Input Ldb — Leaving Dry-Bulb

Lwb — Leaving Wet-Bulb

SHC — Sensible Heat Capacity (1000 Btuh) Gross TC — Total Capacity (1000 Btuh) Gross

NOTES:

1.Direct interpolation is permissible. Do not extrapolate.

2.The following formulas may be used:

sensible capacity (Btuh)

tldb = tedb

1.10 x cfm

tlwb = Wet-bulb temperature corresponding to enthalpy of air leaving indoor coil (hlwb)

Where: hewb = Enthalpy of air entering evaporator coil

3.The SHC is based on 80 F edb temperature of air entering indoor coil. Below 80 F edb, subtract (corr factor x cfm) from SHC.

Above 80 F edb, add (corr factor x cfm) to SHC..

BYPASS

 

ENTERING AIR DRY-BULB TEMP (F)

79

78

77

76

75

under 75

FACTOR

81

82

83

84

85

over 85

(BF)

 

 

 

Correction Factor

 

.05

1.04

2.07

3.11

4.14

5.18

 

.10

.98

1.96

2.94

3.92

4.90

Use formula

.20

.87

1.74

2.62

3.49

4.36

shown below.

.30

.76

1.53

2.29

3.05

3.82

 

Interpolation is permissible.

Correction Factor = 1.10 x (1 – BF) x (edb – 80).

total capacity (Btuh)

hlwb = hewb

4.5 x cfm

INSTANTANEOUS AND INTEGRATED HEATING RATINGS

548F036

Return

Cfm

 

 

 

 

 

 

 

 

Air Temperature Entering Outdoor Coil (F)

 

 

 

 

 

 

 

 

Air

(Standard

 

0

 

10

 

17

 

30

 

40

 

47

 

50

 

60

(F db)

Air)

 

 

 

 

 

 

 

 

 

900

Cap.

15.4

 

13.1

19.2

 

17.6

21.7

 

19.8

27.4

 

24.0

31.9

 

31.9

35.3

 

35.3

36.9

 

36.9

41.4

 

41.4

 

kW

2.25

2.44

2.57

2.86

3.10

3.29

3.38

3.64

 

 

55

1200

Cap.

15.9

 

13.5

19.4

 

17.8

22.5

 

20.5

28.3

 

24.8

32.9

 

32.9

35.8

 

35.8

37.0

 

37.0

40.1

 

40.1

kW

2.24

2.40

2.54

2.80

3.02

3.15

3.21

3.35

 

 

 

1500

Cap.

16.2

 

13.8

19.8

 

18.2

22.9

 

20.9

28.8

 

25.2

33.1

 

33.1

35.3

 

35.3

36.5

 

36.5

38.6

 

38.6

 

kW

2.23

2.38

2.52

2.76

2.94

3.03

3.08

3.17

 

 

 

900

Cap.

13.2

 

11.2

17.1

 

15.7

20.0

 

18.2

25.4

 

22.2

29.8

 

29.8

33.2

 

33.2

34.7

 

34.7

40.1

 

40.1

 

kW

2.29

2.50

2.67

2.98

3.24

3.45

3.55

3.91

 

 

70

1200

Cap.

13.7

 

11.6

17.7

 

16.3

20.3

 

18.5

26.3

 

23.1

30.8

 

30.8

34.4

 

34.4

36.0

 

36.0

40.9

 

40.9

kW

2.28

2.49

2.62

2.93

3.17

3.36

3.45

3.72

 

 

 

1500

Cap.

14.0

 

11.9

18.1

 

16.6

20.7

 

18.9

26.9

 

23.6

31.6

 

31.6

35.1

 

35.1

36.9

 

36.9

40.2

 

40.2

 

kW

2.27

2.47

2.60

2.89

3.12

3.30

3.38

3.54

 

 

 

900

Cap.

11.5

 

9.8

15.5

 

14.2

18.4

 

16.8

23.7

 

20.8

28.1

 

28.1

31.7

 

31.7

33.2

 

33.2

38.5

 

38.5

 

kW

2.30

2.54

2.71

3.04

3.32

3.55

3.65

4.03

 

 

80

1200

Cap.

12.0

 

10.2

16.2

 

14.8

19.2

 

17.5

24.7

 

21.6

29.3

 

29.3

33.0

 

33.0

34.5

 

34.5

40.2

 

40.2

kW

2.30

2.52

2.69

2.99

3.26

3.47

3.56

3.91

 

 

 

1500

Cap.

12.3

 

10.5

16.6

 

15.2

19.7

 

18.0

25.4

 

22.3

30.1

 

30.1

33.7

 

33.7

35.3

 

35.3

39.2

 

39.2

 

kW

2.29

2.51

2.68

2.97

3.22

3.41

3.50

3.70

 

 

LEGEND

Cap. — Heating Capacity (1000 Btuh) (includes indoor-fan motor heat) db — dry bulb

kW — Total Power Input (includes compressor motor power input, outdoor-fan motor input, and indoor-fan motor input)

NOTES:

1. indicates integrated ratings.

2.Integrated capacity is maximum (instantaneous) capacity less the effect of frost on the outdoor coil and the heat required to defrost it.

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Image 28
Bryant 548F, 542J, 549B manual Instantaneous and Integrated Heating Ratings, 4100/0.18 4700/0.21, Under, Correction Factor

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