PERFORMANCE DATA — 548F (cont)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COOLING CAPACITIES (cont)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

548F072 (6 TONS)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Temp (F)

 

 

 

 

 

 

 

 

Indoor Entering Air — Cfm/BF

 

 

 

 

 

 

 

 

 

Outdoor

 

 

1800/0.10

 

 

 

 

2400/0.13

 

 

 

 

 

3000/0.19

 

 

 

Entering Air

 

 

 

 

 

 

 

 

Indoor Entering Air — Ewb (F)

 

 

 

 

 

 

 

 

 

 

 

(Edb)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

72

 

67

 

62

 

72

 

 

67

62

 

 

72

 

 

 

67

 

62

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

75

 

TC

 

81.1

 

77.6

 

72.1

 

84.0

 

80.3

75.2

 

 

84.2

 

81.1

 

77.8

 

 

 

SHC

 

36.2

 

46.9

 

57.0

 

39.1

 

52.4

65.4

 

 

40.8

 

56.2

 

72.2

 

 

 

 

 

kW

 

5.16

 

5.11

 

5.01

 

5.23

 

5.16

5.06

 

 

5.23

 

5.17

 

5.11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

85

 

TC

 

80.7

 

75.8

 

70.0

 

83.9

 

79.3

73.4

 

 

84.1

 

80.8

 

76.2

 

 

 

SHC

 

36.1

 

46.5

 

56.4

 

39.7

 

52.9

65.2

 

 

41.6

 

58.3

 

71.9

548F

 

 

 

 

kW

 

5.83

 

5.74

 

5.65

 

5.90

 

5.81

5.69

 

 

5.90

 

5.84

 

5.76

 

95

 

TC

 

79.3

 

73.0

 

67.3

 

82.0

 

76.7

70.8

 

 

83.0

 

79.1

 

73.5

 

 

SHC

 

35.8

 

45.4

 

55.3

 

39.3

 

52.3

64.3

 

 

42.2

 

58.9

 

69.7

 

 

 

 

 

kW

 

6.54

 

6.37

 

6.28

 

6.60

 

6.47

6.37

 

 

6.62

 

6.55

 

6.40

 

 

105

 

TC

 

76.0

 

70.6

 

64.3

 

79.6

 

73.4

67.9

 

 

80.7

 

75.5

 

71.3

 

 

 

SHC

 

34.6

 

44.8

 

54.1

 

38.8

 

51.2

62.9

 

 

42.0

 

57.6

 

67.8

 

 

 

 

 

kW

 

7.21

 

7.12

 

6.94

 

7.34

 

7.15

7.06

 

 

7.36

 

7.22

 

7.14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

115

 

TC

 

72.7

 

67.5

 

61.1

 

75.8

 

70.6

64.7

 

 

77.9

 

71.8

 

68.5

 

 

 

SHC

 

33.6

 

43.7

 

52.7

 

37.6

 

50.7

60.9

 

 

41.5

 

56.4

 

65.2

 

 

 

 

 

kW

 

7.95

 

7.86

 

7.63

 

8.06

 

7.95

7.77

 

 

8.14

 

7.94

 

7.90

 

 

125

 

TC

 

70.1

 

63.9

 

57.6

 

71.8

 

66.9

61.6

 

 

73.5

 

68.6

 

65.4

 

 

 

SHC

 

32.9

 

42.4

 

51.2

 

36.4

 

49.5

58.4

 

 

40.2

 

56.1

 

62.3

 

 

 

 

 

kW

 

8.82

 

8.62

 

8.37

 

8.83

 

8.73

8.54

 

 

8.89

 

8.79

 

8.69

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

548F090 (71/2 TONS)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Temp (F)

 

 

 

 

 

 

 

 

Indoor Entering Air — Cfm/BF

 

 

 

 

 

 

 

 

 

Outdoor

 

2250/0.04

 

3000/0.06

 

 

3200/0.08

 

 

 

3750/0.11

 

 

Entering Air

 

 

 

 

 

 

 

 

Indoor Entering

Air — Ewb (F)

 

 

 

 

 

 

 

 

 

 

(Edb)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

72

67

 

62

 

72

67

 

62

 

72

67

 

62

 

72

 

67

 

62

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

75

 

TC

 

109.8

101.4

 

92.2

 

116.2

107.0

 

98.0

117.6

108.8

100.2

118.8

 

110.4

102.4

 

 

 

SHC

 

44.2

57.4

 

69.4

 

49.6

66.0

 

82.0

51.8

69.8

 

87.0

 

54.0

 

74.0

92.0

 

 

 

 

kW

 

6.66

6.44

 

6.18

 

6.86

6.60

 

6.36

6.92

6.66

 

6.42

 

6.94

 

6.70

6.48

 

 

85

 

TC

 

105.2

96.4

 

87.0

 

111.4

102.2

 

92.6

113.0

104.0

 

95.0

114.6

 

105.8

97.6

 

 

 

SHC

 

42.8

55.6

 

67.6

 

48.4

65.0

 

80.0

50.8

69.0

 

84.4

 

53.4

 

73.8

88.8

 

 

 

 

kW

 

7.20

6.94

 

6.64

 

7.42

7.14

 

6.82

7.48

7.20

 

6.90

 

7.54

 

7.28

7.00

 

 

95

 

TC

 

100.6

91.0

 

82.0

 

105.6

96.2

 

87.4

107.2

98.0

 

89.8

108.6

 

99.6

92.8

 

 

 

SHC

 

41.6

54.0

 

65.8

 

47.0

63.2

 

77.8

49.4

67.4

 

81.4

 

52.0

 

72.2

84.6

 

 

 

 

kW

 

7.78

7.42

 

7.08

 

7.96

7.62

 

7.30

8.00

7.70

 

7.40

 

8.06

 

7.76

7.50

 

 

105

 

TC

 

94.8

85.4

 

76.8

 

99.8

90.2

 

82.2

101.4

91.6

 

85.0

103.2

 

93.2

88.0

 

 

 

SHC

 

40.0

52.2

 

63.8

 

45.6

61.6

 

74.6

48.2

65.8

 

77.6

 

51.2

 

70.4

80.4

 

 

 

 

kW

 

8.26

7.88

 

7.50

 

8.48

8.10

 

7.76

8.56

8.18

 

7.88

 

8.64

 

8.24

8.02

 

 

115

 

TC

 

88.8

79.9

 

71.4

 

93.4

84.0

 

77.6

94.8

85.4

 

80.0

 

96.0

 

86.6

83.0

 

 

 

SHC

 

38.4

50.4

 

61.6

 

44.2

59.8

 

70.6

46.6

64.0

 

73.2

 

49.4

 

68.6

75.8

 

 

 

 

kW

 

8.76

8.32

 

7.90

 

8.98

8.54

 

8.22

9.04

8.62

 

8.36

 

9.10

 

8.70

8.50

 

 

125

 

TC

 

82.6

73.8

 

65.8

 

86.6

77.4

 

74.4

88.0

78.8

 

75.0

 

89.2

 

80.0

77.6

 

 

 

SHC

 

36.8

48.6

 

59.2

 

42.2

57.8

 

66.2

45.2

62.0

 

68.6

 

48.2

 

66.6

71.0

 

 

 

 

kW

 

9.20

8.74

 

8.30

 

9.44

8.96

 

8.68

9.52

9.02

 

8.82

 

9.60

 

9.12

8.98

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:

tldb = tedb

sensible capacity (Btuh)

 

1.10 x cfm

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

hlwb = hewb

total capacity (Btuh)

4.5 x cfm

 

Where: hewb = Enthalpy of air enter- ing evaporator coil

3.The SHC is based on 80 F edb tem- perature 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.

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Bryant 549C manual Performance Data 548F, Cooling Capacities