Table 4—Required Subcooling

REQUIRED SUBCOOLING °F (°C)

Model Size

 

 

Outdoor Ambient Temperature

 

 

75 (24)

82

(28)

85 (29)

 

95 (35)

105 (41)

 

 

048

17.5 (9.7)

17 (9.4)

16.5 (9.2)

 

16 8.9)

14 (7.8)

060

21 (11.7)

20.5

(11.4)

20 (11.1)

 

19 (10.6)

16 (8.9)

Table 5—Required Liquid Line Temperature

REQUIRED LIQUID LINE TEMPERATURE FOR A SPECIFIC SUBCOOLING (R-22)

Pressure (psig)

 

Required Subcooling (°F)

 

 

Pressure (kPa)

 

Required Subcooling (°C)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

10

15

 

20

3

 

6

8

 

11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

134

71

 

66

61

 

56

 

924

24

 

22

19

 

16

141

74

 

69

64

 

59

 

972

26

 

23

21

 

18

156

80

 

75

70

 

65

 

1075

30

 

27

24

 

21

163

83

 

78

73

 

68

 

1124

31

 

28

26

 

23

170

86

 

81

76

 

71

 

1172

33

 

30

27

 

24

177

89

 

84

79

 

74

 

1220

34

 

31

29

 

26

184

91

 

86

81

 

76

 

1268

36

 

33

30

 

27

191

94

 

89

84

 

79

 

1317

37

 

34

31

 

29

198

96

 

91

86

 

81

 

1365

38

 

36

33

 

30

205

98

 

93

88

 

83

 

1413

40

 

37

34

 

31

213

101

 

96

91

 

86

 

1468

41

 

38

36

 

33

221

104

 

99

94

 

89

 

1524

43

 

40

37

 

34

229

106

 

101

96

 

91

 

1579

44

 

41

38

 

36

237

108

 

103

98

 

93

 

1634

45

 

42

40

 

37

245

111

 

106

101

 

96

 

1689

47

 

44

41

 

38

253

113

 

108

103

 

98

 

1744

48

 

45

42

 

40

262

116

 

111

106

 

101

 

1806

49

 

46

44

 

41

271

118

 

113

108

 

103

 

1868

51

 

48

45

 

42

280

121

 

116

111

 

106

 

1930

52

 

49

46

 

44

289

123

 

118

113

 

108

 

1992

53

 

51

48

 

45

298

125

 

120

115

 

110

 

2054

55

 

52

49

 

46

307

128

 

123

118

 

113

 

2116

56

 

53

50

 

48

317

130

 

125

120

 

115

 

2185

57

 

54

52

 

49

327

132

 

127

122

 

117

 

2254

59

 

56

53

 

50

337

135

 

130

125

 

120

 

2323

60

 

57

54

 

52

347

137

 

132

127

 

122

 

2392

61

 

58

56

 

53

357

139

 

134

129

 

124

 

2461

62

 

60

57

 

54

367

142

 

137

132

 

127

 

2530

64

 

61

58

 

55

280

121

 

116

111

 

106

 

1930

52

 

49

46

 

44

289

123

 

118

113

 

108

 

1992

53

 

51

48

 

45

298

125

 

120

115

 

110

 

2054

55

 

52

49

 

46

307

128

 

123

118

 

113

 

2116

56

 

53

50

 

48

317

130

 

125

120

 

115

 

2185

57

 

54

52

 

49

327

132

 

127

122

 

117

 

2254

59

 

56

53

 

50

337

135

 

130

125

 

120

 

2323

60

 

57

54

 

52

347

137

 

132

127

 

122

 

2392

61

 

58

56

 

53

357

139

 

134

129

 

124

 

2461

62

 

60

57

 

54

367

142

 

137

132

 

127

 

2530

64

 

61

58

 

55

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

b.Inspect for oil at all refrigerant tubing connections and on unit base. Detecting oil generally indicates a refrigerant leak. Leak-test all refrigerant tubing connections using electronic leak detector, or liquid-soap solution. If a refrig- erant leak is detected, see following Check for Refrigerant Leaks section.

c.Inspect all field- and factory-wiring connections. Be sure that connections are completed and tight. Ensure wires do not contact refrigerant tubing or sheet metal edges.

d.Inspect coil fins. If damaged during shipping and handling, carefully straighten fins with a fin comb.

3.Verify the following conditions:

a.Make sure that outdoor-fan blade is correctly positioned in fan orifice. Top edge of blade should be 3.125 in. down from outdoor coil outlet grille (size 024–048, See Fig. 12) or hub should be 0.708-in. away from motor end bell (size 060, See Fig. 13). See Outdoor Fan Adjustment section.

b.Make sure that air filter is in place.

c.Make sure that condensate drain trap is filled with water to ensure proper drainage.

d.Make sure that all tools and miscellaneous loose parts have been removed.

7

Page 7
Image 7
Carrier 50ZHA024-060 instruction manual Required Liquid Line Temperature, Required Subcooling F C

50ZHA024-060 specifications

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