Table 15 — Temperature (_F) vs Resistance/Voltage Drop Values for

RAT, OAT, SAT, and SPT Thermistors (10K at 25_C Resistors)

TEMP

VOLTAGE

RESISTANCE

TEMP

VOLTAGE

RESISTANCE

TEMP

VOLTAGE

RESISTANCE

(F)

DROP (V)

(Ohms)

(F)

DROP (V)

(Ohms)

(F)

DROP (V)

(Ohms)

---25

4.758

196,453

61

2.994

14,925

147

0.890

2,166

---24

4.750

189,692

62

2.963

14,549

148

0.876

2,124

---23

4.741

183,300

63

2.932

14,180

149

0.862

2,083

---22

4.733

177,000

64

2.901

13,824

150

0.848

2,043

---21

4.724

171,079

65

2.870

13,478

151

0.835

2,003

---20

4.715

165,238

66

2.839

13,139

152

0.821

1,966

---19

4.705

159,717

67

2.808

12,814

153

0.808

1,928

---18

4.696

154,344

68

2.777

12,493

154

0.795

1,891

---17

4.686

149,194

69

2.746

12,187

155

0.782

1,855

---16

4.676

144,250

70

2.715

11,884

156

0.770

1,820

---15

4.665

139,443

71

2.684

11,593

157

0.758

1,786

---14

4.655

134,891

72

2.653

11,308

158

0.745

1,752

---13

4.644

130,402

73

2.622

11,031

159

0.733

1,719

---12

4.633

126,183

74

2.592

10,764

160

0.722

1,687

---11

4.621

122,018

75

2.561

10,501

161

0.710

1,656

---10

4.609

118,076

76

2.530

10,249

162

0.699

1,625

---9

4.597

114,236

77

2.500

10,000

163

0.687

1,594

---8

4.585

110,549

78

2.470

9,762

164

0.676

1,565

---7

4.572

107,006

79

2.439

9,526

165

0.666

1,536

---6

4.560

103,558

80

2.409

9,300

166

0.655

1,508

---5

4.546

100,287

81

2.379

9,078

167

0.645

1,480

---4

4.533

97,060

82

2.349

8,862

168

0.634

1,453

---3

4.519

94,020

83

2.319

8,653

169

0.624

1,426

---2

4.505

91,019

84

2.290

8,448

170

0.614

1,400

---1

4.490

88,171

85

2.260

8,251

171

0.604

1,375

0

4.476

85,396

86

2.231

8,056

172

0.595

1,350

1

4.461

82,729

87

2.202

7,869

173

0.585

1,326

2

4.445

80,162

88

2.173

7,685

174

0.576

1,302

3

4.429

77,662

89

2.144

7,507

175

0.567

1,278

4

4.413

75,286

90

2.115

7,333

176

0.558

1,255

5

4.397

72,940

91

2.087

7,165

177

0.549

1,233

6

4.380

70,727

92

2.059

6,999

178

0.540

1,211

7

4.363

68,542

93

2.030

6,838

179

0.532

1,190

8

4.346

66,465

94

2.003

6,683

180

0.523

1,169

9

4.328

64,439

95

1.975

6,530

181

0.515

1,148

10

4.310

62,491

96

1.948

6,383

182

0.507

1,128

11

4.292

60,612

97

1.921

6,238

183

0.499

1,108

12

4.273

58,781

98

1.894

6,098

184

0.491

1,089

13

4.254

57,039

99

1.867

5,961

185

0.483

1,070

14

4.235

55,319

100

1.841

5,827

186

0.476

1,052

15

4.215

53,693

101

1.815

5,698

187

0.468

1,033

16

4.195

52,086

102

1.789

5,571

188

0.461

1,016

17

4.174

50,557

103

1.763

5,449

189

0.454

998

18

4.153

49,065

104

1.738

5,327

190

0.447

981

19

4.132

47,627

105

1.713

5,210

191

0.440

964

20

4.111

46,240

106

1.688

5,095

192

0.433

947

21

4.089

44,888

107

1.663

4,984

193

0.426

931

22

4.067

43,598

108

1.639

4,876

194

0.419

915

23

4.044

42,324

109

1.615

4,769

195

0.413

900

24

4.021

41,118

110

1.591

4,666

196

0.407

885

25

3.998

39,926

111

1.567

4,564

197

0.400

870

26

3.975

38,790

112

1.544

4,467

198

0.394

855

27

3.951

37,681

113

1.521

4,370

199

0.388

841

28

3.927

36,610

114

1.498

4,277

200

0.382

827

29

3.903

35,577

115

1.475

4.185

201

0.376

814

30

3.878

34,569

116

1.453

4,096

202

0.370

800

31

3.853

33,606

117

1.431

4,008

203

0.365

787

32

3.828

32,654

118

1.409

3,923

204

0.359

774

33

3.802

31,752

119

1.387

3,840

205

0.354

762

34

3.776

30,860

120

1.366

3,759

206

0.349

749

35

3.750

30,009

121

1.345

3,681

207

0.343

737

36

3.723

29,177

122

1.324

3,603

208

0.338

725

37

3.697

28,373

123

1.304

3,529

209

0.333

714

38

3.670

27,597

124

1.284

3,455

210

0.328

702

39

3.654

26,838

125

1.264

3,383

211

0.323

691

40

3.615

26,113

126

1.244

3,313

212

0.318

680

41

3.587

25,396

127

1.225

3,244

213

0.314

670

42

3.559

24,715

128

1.206

3,178

214

0.309

659

43

3.531

24,042

129

1.187

3,112

215

0.305

649

44

3.503

23,399

130

1.168

3,049

216

0.300

639

45

3.474

22,770

131

1.150

2,986

217

0.296

629

46

3.445

22,161

132

1.132

2,926

218

0.292

620

47

3.416

21,573

133

1.114

2,866

219

0.288

610

48

3.387

20,998

134

1.096

2,809

220

0.284

601

49

3.357

20,447

135

1.079

2,752

221

0.279

592

50

3.328

19,903

136

1.062

2,697

222

0.275

583

51

3.298

19,386

137

1.045

2,643

223

0.272

574

52

3.268

18,874

138

1.028

2,590

224

0.268

566

53

3.238

18,384

139

1.012

2,539

225

0.264

557

54

3.208

17,904

140

0.996

2,488

 

 

 

55

3.178

17,441

141

0.980

2,439

 

 

 

56

3.147

16,991

142

0.965

2,391

 

 

 

57

3.117

16,552

143

0.949

2,343

 

 

 

58

3.086

16,131

144

0.934

2,297

 

 

 

59

3.056

15,714

145

0.919

2,253

 

 

 

60

3.025

15,317

146

0.905

2,209

 

 

 

48/50PD

39

Page 38 Page 40
Page 39
Image 39
Carrier 48/50PD05 manual Temp Voltage Resistance Drop
Page 38 Page 40

48/50PD05 specifications

The Carrier 48/50PD05 is a remarkable addition to Carrier's lineup of rooftop units, offering advanced cooling and heating solutions for commercial applications. Designed for medium-sized buildings, this unit is well-suited for both new installations and as a replacement for older systems, thanks to its versatile features and efficient performance.

One of the standout features of the 48/50PD05 is its energy efficiency. It incorporates state-of-the-art technology to achieve high Seasonal Energy Efficiency Ratios (SEER) and EER ratings, reducing operational costs while delivering superior comfort. The unit is also compliant with the latest energy regulations, making it an environmentally friendly choice for building owners concerned about sustainability.

The 48/50PD05 is equipped with a highly efficient scroll compressor, which not only enhances performance but also contributes to quiet operation. This is a significant advantage in commercial spaces where noise levels need to be kept in check for comfort and productivity. Additionally, the unit includes advanced airflow design, ensuring even distribution of conditioned air throughout the space.

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Durability is another characteristic of the 48/50PD05. Constructed with high-quality materials, the unit withstands various environmental conditions, ensuring longevity and reliability. Moreover, the modular design facilitates easy maintenance, making service procedures efficient and cost-effective.

In addition to cooling, the Carrier 48/50PD05 offers heating capabilities, often utilizing gas or electric heating options that can be tailored to the specific needs of a building. The unit can also be equipped with integrated economizers, allowing for free cooling during suitable outdoor conditions, further enhancing energy savings.

Overall, the Carrier 48/50PD05 stands out as a high-performance HVAC solution that combines efficiency, technology, and durability. It provides building owners with a versatile tool to ensure comfort while minimizing their environmental footprint. With a strong emphasis on energy savings and advanced control features, this rooftop unit is a smart investment for any commercial property.
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