Table 46 – (cont.) MCA/MOCP DETERMINATION WITHOUT C.O. OR UNPWRD C.O.

 

---HZ

 

ELEC. HTR

 

 

WITHOUT C.O. or UNPWR 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

 

---

---

41.7

60

40

145

43.6

60

43

147

 

 

4.9/6.5

23.5/27.1

71.0/75.5

80/80

67/72

169/172

72.9/77.4

80/80

70/74

171/174

 

---1

DD---STD

6.5/8.7

31.4/36.3

80.9/87.0

90/100

76/82

176/181

82.8/88.9

100/100

79/84

178/183

 

208/230

9.8/13.0

46.9/54.2

100.3/109.4

110/110

94/103

239/253

102.2/111.3

110/125

96/105

241/255

 

 

 

 

 

 

 

 

13.1/17.4

62.8/72.5

120.2/132.3

125/150

113/124

271/290

122.1/134.2

125/150

115/126

273/292

 

 

 

15.8/21.0

75.8/87.5

136.4/151.0

150/175

128/141

297/320

138.3/152.9

150/175

130/143

299/322

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---

---

28.4

40

28

121

30.3

45

30

123

 

 

 

4.9/6.5

13.6/15.6

45.4/47.9

50/50

44/46

135/137

47.3/49.8

50/60

46/48

137/139

 

 

DD---STD

7.9/10.5

21.9/25.3

55.8/60.0

60/70

53/57

143/146

57.7/61.9

60/70

56/59

145/148

 

 

12.0/16.0

33.4/38.5

70.2/76.5

80/80

67/72

154/160

72.1/78.4

80/80

69/75

156/162

 

 

 

 

 

 

15.8/21.0

43.8/50.5

83.2/91.5

90/100

79/86

209/222

85.1/93.4

90/100

81/88

211/224

 

 

 

19.9/26.5

55.2/63.8

97.4/108.2

100/110

92/102

231/249

99.3/110.1

100/125

94/104

233/251

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---60

 

---

---

26.2

40

26

144

28.1

40

28

146

 

 

4.9/6.5

13.6/15.6

43.2/45.7

50/50

41/44

158/160

45.1/47.6

50/50

43/46

160/162

 

---3

MED

7.9/10.5

21.9/25.3

53.6/57.8

60/60

51/55

166/169

55.5/59.7

60/60

53/57

168/171

 

208/230

12.0/16.0

33.4/38.5

68.0/74.3

70/80

64/70

177/183

69.9/76.2

70/80

66/72

179/185

 

 

 

 

 

 

 

 

15.8/21.0

43.8/50.5

81.0/89.3

90/90

76/84

232/245

82.9/91.2

90/100

78/86

234/247

 

 

 

19.9/26.5

55.2/63.8

95.2/106.0

100/110

89/99

254/272

97.1/107.9

100/110

91/101

256/274

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---

---

28.5

40

28

170

30.4

45

30

172

 

 

 

4.9/6.5

13.6/15.6

45.5/48.0

50/50

44/46

184/186

47.4/49.9

50/60

46/48

186/188

 

 

HIGH

7.9/10.5

21.9/25.3

55.9/60.1

60/70

53/57

192/195

57.8/62.0

60/70

56/60

194/197

548J*06

 

12.0/16.0

33.4/38.5

70.3/76.6

80/80

67/73

203/209

72.2/78.5

80/80

69/75

205/211

 

 

 

 

15.8/21.0

43.8/50.5

83.3/91.6

90/100

79/86

258/271

85.2/93.5

90/100

81/89

260/273

 

 

 

 

 

 

19.9/26.5

55.2/63.8

97.5/108.3

100/110

92/102

280/298

99.4/110.2

100/125

94/104

282/300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---

---

18.0

25

19

62

19.0

25

20

63

 

 

 

6.0

7.2

27.0

30

27

69

28.0

30

28

70

 

 

DD---STD

11.5

13.8

35.3

40

34

76

36.3

40

36

77

 

 

14.0

16.8

39.0

40

38

79

40.0

45

39

80

 

 

 

 

 

 

23.0

27.7

52.7

60

50

117

53.7

60

52

118

 

 

 

25.5

30.7

56.4

60

54

123

57.4

60

55

124

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

 

---

---

13.0

20

13

69

14.0

20

14

70

 

 

6.0

7.2

22.0

25

21

76

23.0

25

22

77

 

3---

MED

11.5

13.8

30.3

35

29

83

31.3

35

30

84

 

---

14.0

16.8

34.0

35

32

86

35.0

40

33

87

 

460

 

 

 

23.0

27.7

47.7

50

45

124

48.7

50

46

125

 

 

 

25.5

30.7

51.4

60

48

130

52.4

60

49

131

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

---

---

13.8

20

14

82

14.8

20

15

83

 

 

 

6.0

7.2

22.8

25

22

89

23.8

25

23

90

 

 

HIGH

11.5

13.8

31.1

35

30

96

32.1

35

31

97

 

 

14.0

16.8

34.8

35

33

99

35.8

40

34

100

 

 

 

 

 

 

23.0

27.7

48.5

50

46

137

49.5

50

47

138

 

 

 

25.5

30.7

52.2

60

49

143

53.2

60

50

144

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

DD---STD

---

---

11.9

15

12

45

13.8

20

14

47

 

3---

 

 

 

 

 

 

 

 

 

 

 

 

MED

---

---

9.9

15

10

52

11.8

15

12

54

 

---

 

 

 

 

 

 

 

 

 

 

 

 

 

575

 

 

 

 

 

 

 

 

 

 

 

 

HIGH

---

---

10.7

15

11

63

12.6

15

13

65

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

See

Notes

page 49.

 

 

 

 

 

 

 

 

 

 

548J

51

Page 51
Image 51
Bryant 548J manual 70/74, 76/82, 79/84, 46/48, 53/57, 69/75, 81/88, 51/55, 78/86, 89/99, 56/60, 67/73, 81/89, See

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.