Table 47 – MCA/MOCP DETERMINATION WITH PWRD C.O.

 

---HZ

 

ELEC. HTR

 

 

 

WITH PWRD C.O.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UNIT

V---PH

IFM

 

 

 

WITHOUT P.E.

 

 

WITH P.E.

 

Nom

 

 

 

 

 

 

 

 

 

TYPE

 

 

 

 

 

 

 

 

 

FLA

 

 

DISC. SIZE

 

 

DISC. SIZE

 

NOM.

 

(kW)

MCA

MOCP

MCA

MOCP

 

 

 

 

 

 

 

 

 

 

 

 

FLA

LRA

FLA

LRA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---60

 

---

---

35.5

50

36

126

37.4

50

38

128

 

 

3.3/4.4

15.9/18.3

55.4/58.4

60/60

54/57

142/144

57.3/60.3

60/70

56/59

144/146

 

---1

DD---STD

4.9/6.5

23.5/27.1

64.9/69.4

70/80

63/67

150/153

66.8/71.3

70/80

65/69

152/155

 

208/230

6.5/8.7

31.4/36.3

74.7/80.9

80/90

72/77

157/162

76.6/82.8

80/90

74/80

159/164

 

 

 

 

 

 

 

 

7.9/10.5

37.9/43.8

82.9/90.2

90/100

79/86

164/170

84.8/92.1

90/100

81/88

166/172

 

 

 

9.8/13.0

46.9/54.2

94.1/103.2

100/110

90/98

220/234

96.0/105.1

100/110

92/100

222/236

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---

---

29.6

40

30

102

31.5

40

32

104

 

 

 

3.3/4.4

9.2/10.6

41.1/42.9

50/50

41/42

111/113

43.0/44.8

50/50

43/45

113/115

 

 

DD---STD

4.9/6.5

13.6/15.6

46.6/49.1

50/50

46/48

116/118

48.5/51.0

50/60

48/50

118/120

 

 

6.5/8.7

18.1/20.9

52.2/55.7

60/60

51/54

120/123

54.1/57.6

60/60

53/56

122/125

 

 

 

 

 

 

7.9/10.5

21.9/25.3

57.0/61.2

60/70

55/59

124/127

58.9/63.1

60/70

58/62

126/129

 

 

 

12.0/16.0

33.4/38.5

71.4/77.7

80/80

69/75

135/141

73.3/79.6

80/80

71/77

137/143

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---60

 

---

---

27.4

40

28

114

29.3

40

30

116

 

 

3.3/4.4

9.2/10.6

38.9/40.7

45/50

38/40

123/125

40.8/42.6

50/50

40/42

125/127

 

---3

MED

4.9/6.5

13.6/15.6

44.4/46.9

50/50

43/46

128/130

46.3/48.8

50/50

46/48

130/132

 

208/230

6.5/8.7

18.1/20.9

50.0/53.5

60/60

49/52

132/135

51.9/55.4

60/60

51/54

134/137

 

 

 

 

 

 

 

 

7.9/10.5

21.9/25.3

54.8/59.0

60/60

53/57

136/139

56.7/60.9

60/70

55/59

138/141

 

 

 

12.0/16.0

33.4/38.5

69.2/75.5

70/80

66/72

147/153

71.1/77.4

80/80

68/74

149/155

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---

---

27.4

40

28

125

29.3

40

30

127

 

 

 

3.3/4.4

9.2/10.6

38.9/40.7

45/50

38/40

134/136

40.8/42.6

50/50

40/42

136/138

548J*04

 

HIGH

4.9/6.5

13.6/15.6

44.4/46.9

50/50

43/46

139/141

46.3/48.8

50/50

46/48

141/143

 

6.5/8.7

18.1/20.9

50.0/53.5

60/60

49/52

143/146

51.9/55.4

60/60

51/54

145/148

 

 

 

 

 

 

 

 

7.9/10.5

21.9/25.3

54.8/59.0

60/60

53/57

147/150

56.7/60.9

60/70

55/59

149/152

 

 

 

12.0/16.0

33.4/38.5

69.2/75.5

70/80

66/72

158/164

71.1/77.4

80/80

68/74

160/166

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---

---

18.2

25

19

55

19.2

25

20

56

 

 

 

6.0

7.2

27.2

30

27

62

28.2

30

28

63

 

 

DD---STD

8.8

10.6

31.5

35

31

66

32.5

35

32

67

 

 

 

11.5

13.8

35.5

40

35

69

36.5

40

36

70

 

 

 

14.0

16.8

39.2

40

38

72

40.2

45

39

73

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

 

---

---

12.8

15

13

56

13.8

20

14

57

 

 

6.0

7.2

21.8

25

21

63

22.8

25

22

64

 

3---

 

 

MED

8.8

10.6

26.1

30

25

67

27.1

30

26

68

 

---

 

 

11.5

13.8

30.1

35

29

70

31.1

35

30

71

 

460

 

 

 

14.0

16.8

33.8

35

32

73

34.8

35

33

74

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---

---

12.8

15

13

62

13.8

20

14

63

 

 

 

6.0

7.2

21.8

25

21

69

22.8

25

22

70

 

 

HIGH

8.8

10.6

26.1

30

25

73

27.1

30

26

74

 

 

 

11.5

13.8

30.1

35

29

76

31.1

35

30

77

 

 

 

14.0

16.8

33.8

35

32

79

34.8

35

33

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

DD---STD

---

---

7.1

15

7

7

9.5

15

9

9

 

3---

 

 

 

 

 

 

 

 

 

 

 

 

MED

---

---

5.1

15

5

10

7.5

15

7

12

 

---

 

 

 

 

 

 

 

 

 

 

 

 

 

575

 

 

 

 

 

 

 

 

 

 

 

 

HIGH

---

---

4.6

15

5

14

7.0

15

7

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

See

Notes

page 49.

 

 

 

 

 

 

 

 

 

 

548J

55

Page 55
Image 55
Bryant 548J manual MCA/MOCP Determination with Pwrd C.O, ELEC. HTR With Pwrd C.O Unit IFM Without P.E With P.E

548J specifications

The Bryant 548J is a high-efficiency gas furnace that combines advanced features and technologies to provide exceptional heating performance. Designed for residential applications, the furnace is notable for its ability to deliver consistent warmth while ensuring energy efficiency and reliability.

One of the main features of the Bryant 548J is its ultra-high efficiency rating, which allows homeowners to save significantly on energy costs. With an Annual Fuel Utilization Efficiency (AFUE) rating of up to 96.5%, this furnace is designed to convert a large portion of fuel into usable heat. This is a remarkable characteristic that not only reduces utility bills but also contributes to a lower environmental footprint.

The 548J is equipped with a modulating gas valve and a variable-speed blower motor. The modulating gas valve enables the furnace to adjust its heating output based on real-time temperature demands, ensuring a more precise heating experience. This results in reduced temperature fluctuations within the home, providing a comfortable living environment. The variable-speed blower motor works in tandem with the modulating valve, facilitating improved air circulation and efficient temperature control.

Additionally, the Bryant 548J features a durable and compact design, making it suitable for various installation spaces. Its quality construction ensures longevity, while the optional stainless steel heat exchanger enhances its reliability. The furnace also includes a quiet operation mode, which minimizes noise levels, ensuring that the unit works quietly in the background without disturbing the household's peace.

Integration with smart home technology is another advantage of the Bryant 548J. Homeowners have the option to connect the furnace to a Wi-Fi-enabled thermostat, allowing for remote temperature control and monitoring. This feature offers enhanced convenience and the ability to optimize energy use according to a homeowner’s schedule.

For peace of mind, the Bryant 548J comes with a range of warranties, protecting the consumer's investment. Bryant’s commitment to quality is reflected in their extensive primary heating testing procedures, which ensure that each unit meets strict performance criteria before it reaches the customer.

In summary, the Bryant 548J is an efficient and reliable gas furnace that embodies advanced heating technology. With features such as high AFUE ratings, modulating gas valves, variable-speed blowers, and smart home compatibility, it stands out as a formidable option for modern residential heating solutions.