Carrier 30GN040-420 operating instructions Temperature Voltage Resistance Drop

Page 59

Table 18 Ð Thermistor Temperature (°C) vs Resistance/Voltage Drop; Flotronic™ II

TEMPERATURE

VOLTAGE

RESISTANCE

(C)

DROP (V)

(Ohms)

−40

4.896

168 230

−39

4.889

157 440

−38

4.882

147 410

−37

4.874

138 090

−36

4.866

129 410

−35

4.857

121 330

−34

4.848

113 810

−33

4.838

106 880

−32

4.828

100 260

−31

4.817

94 165

−30

4.806

88 480

−29

4.794

83 170

−28

4.782

78 125

−27

4.769

73 580

−26

4.755

69 250

−25

4.740

65 205

−24

4.725

61 420

−23

4.710

57 875

−22

4.693

54 555

−21

4.676

51 450

−20

4.657

48 536

−19

4.639

45 807

−18

4.619

43 247

−17

4.598

40 845

−16

4.577

38 592

−15

4.554

38 476

−14

4.531

34 489

−13

4.507

32 621

−12

4.482

30 866

−11

4.456

29 216

−10

4.428

27 633

−9

4.400

26 202

−8

4.371

24 827

−7

4.341

23 532

−6

4.310

22 313

−5

4.278

21 163

−4

4.245

20 079

−3

4.211

19 058

−2

4.176

18 094

−1

4.140

17 184

0

4.103

16 325

1

4.065

15 515

2

4.026

14 749

3

3.986

14 026

4

3.945

13 342

5

3.903

12 696

6

3.860

12 085

7

3.816

11 506

8

3.771

10 959

9

3.726

10 441

10

3.680

9 949

11

3.633

9 485

12

3.585

9 044

13

3.537

8 627

14

3.487

8 231

15

3.438

7 855

16

3.387

7 499

17

3.337

7 161

18

3.285

6 840

19

3.234

6 536

20

3.181

6 246

21

3.129

5 971

22

3.076

5 710

23

3.023

5 461

24

2.970

5 225

25

2.917

5 000

26

2.864

4 786

27

2.810

4 583

28

2.757

4 389

29

2.704

4 204

30

2.651

4 028

31

2.598

3 861

32

2.545

3 701

33

2.493

3 549

34

2.441

3 404

35

2.389

3 266

36

2.337

3 134

37

2.286

3 008

38

2.236

2 888

39

2.186

2 773

40

2.137

2 663

41

2.087

2 559

42

2.039

2 459

43

1.991

2 363

TEMPERATURE

VOLTAGE

RESISTANCE

(C)

DROP (V)

(Ohms)

44

1.944

2 272

45

1.898

2 184

46

1.852

2 101

47

1.807

2 021

48

1.763

1 944

49

1.719

1 871

50

1.677

1 801

51

1.635

1 734

52

1.594

1 670

53

1.553

1 609

54

1.513

1 550

55

1.474

1 493

56

1.436

1 439

57

1.399

1 387

58

1.363

1 337

59

1.327

1 290

60

1.291

1 244

61

1.258

1 200

62

1.225

1 158

63

1.192

1 118

64

1.160

1 079

65

1.129

1 041

66

1.099

1 006

67

1.069

971

68

1.040

938

69

1.012

906

70

0.984

876

71

0.949

836

72

0.920

805

73

0.892

775

74

0.865

747

75

0.838

719

76

0.813

693

77

0.789

669

78

0.765

645

79

0.743

623

80

0.722

602

81

0.702

583

82

0.683

564

83

0.665

547

84

0.648

531

85

0.632

516

86

0.617

502

87

0.603

489

88

0.590

477

89

0.577

466

90

0.566

456

91

0.555

446

92

0.545

436

93

0.535

427

94

0.525

419

95

0.515

410

96

0.506

402

97

0.496

393

98

0.486

385

99

0.476

376

100

0.466

367

101

0.454

357

102

0.442

346

103

0.429

335

104

0.416

324

105

0.401

312

106

0.386

299

107

0.370

285

59

Page 58 Page 60
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Page 58 Page 60
Contents Controls, Operation, Troubleshooting Tons Unit 30GN Unit Sizes and Modular CombinationsUnit Model Nominal Section a Section B 30GN Control Panel 040-110 Unit Shown Stop LOCAL/ENABLE-STOP-CCN Switch Positions and OperationLOCAL/ENABLE Keypad and Display Module Also Called HsioPressure Transducers Compressor Protection Control Module CpcsThermistor and Transducer Locations ThermistorsSteps Ð Capacity Control StepsLoading Sequence a Loading Sequence B Unit Control Ð Capacity Control Steps, 040-070 Ð Capacity Control Steps, 040-070 A1²**,B1² Displacement Compressors Approx 080, 230B 60 HzA1²,B1² A1²**, B1²090, 245B 50 Hz Compressors Displacement090, 245B 60 Hz 270B 60 Hz 100, 255B270B 50 Hz Unit Control Loading Sequence a Loading Sequence B315B 50 Hz 110, 290B315B 60 Hz A1*,A2,B1 A1,A2,B1 A1²²,A2,B1,B2 A1*,A2,B1,B2 130 60 Hz 150, 230A, 245A 130 50 HzA1,kB1 330A/B 60 Hz 170, 270A330A/B,360B 50 Hz 330A/B, 360B 50 Hz A1**,B1 Approx 190, 290A, 360A/B390B 60 Hz A1,B1420A/B 60 Hz 210, 315A, 390A420A/B 50 Hz Pumpout Head Pressure ControlFAN Arrangement FAN Numbers FAN Contactor Controlled by Condenser Fan SequenceOperative USE Keys Keypad and Display Module UsageFunctions and Subfunctions Function USE KeysKeypad Directory Accessing Functions and SubfunctionsSET Point TemperatureKeypad Directory Status Subfunction Keypad Entry Display Comment StageOutputs Subfunction Keypad Entry Display Comment PressureAnalog InputsUnloaders CPA1 Subfunction Keypad Entry Display CommentSubfunction Keypad Entry Display Comment Outputs Subfunction Keypad Entry Display Comment CompressorsKeypad Directory Test Keypad Directory Schedule Subfunction Keypad Entry Display Comment Factory Keypad Directory ServiceConfiguration ServiceHISTORY²² ALARM/ALERTSubfunction Keypad Entry Display Comment RUN Time StartsDate and Time Reset SET PointsSubfunction Keypad Entry Display Comment SET Points Demand SET PointsKeypad Display Comments Entry Response Example 1 Ð Reading Alarm CodesExample 2 Ð Reading Current Operating Modes Operational and Mode Display Codes Reset Set Points Example 3 Ð Using Test FunctionMeasurement Method Input Data Description Example 5A Ð External ResetReset Amounts Example 4 Ð Reading and Changing Chilled Fluid Set PointKeypad Display Comments Entry Response Example 5C Ð Using Return Fluid Temperature ResetPWR PowerSwitch Comm Ð Communications BusLoggedon Service FunctionsPassword SUB Keypad Display CommentExample 8 Ð Setting Time of Day Day of Week To Disable Demand Limit4-20 mA Demand Limiting Factory Conguration Keystrokes Adjustable Field CongurationsKeypad Display Comment Entry Programming Period Example 9 Ð Using the Schedule FunctionKeypad Display Comment Entry Programming PeriodEnter Display Example 10 Ð Holiday Schedule FunctionStop position. Unit cannot start if these contacts are Typical Stoppage Faults and Reset TypesLOCAL/ENABLE-STOP-CCN Alarm and Alert CodesWSM CpcsFSM HPS COM, CommDGT DsioComm CGF Subfunction. Groups Electronic Expansion Valve EXV EXV Cable Connections to EXV Driver Module, Dsio EXV Thermistor Replacement T1, T2, T7, T8 Temperature Voltage Resistance Drop Ohms Temperature Voltage Resistance Drop Thermistor and Pressure Transducer Locations Thermistor Locations Circuits a and B, Lead Compressor Only Lead Compressor Transducer and Thermistor Locations Control Modules Module Address Selector Switch LocationsAccessory Unloader Installation 4 In/4 Out Module SIO InstallationStandard and Accessory Unloaders TroubleshootingPage COM Or HGBPR-A²Or HGBPR-B Hgbpr ÐTB Ð Terminal Block Externally PoweredOutdoor-Air Temperature CWP Ð Chilled Water Fluid PumpInterlocks Remote AlarmPage Copyright 1995 Carrier Corporation

30GN040-420 specifications

The Carrier 30GN040-420 is a well-regarded model within the industry of chillers, designed to deliver efficient cooling solutions for a variety of commercial applications. Its compact design and advanced technology make it an ideal choice for businesses looking to optimize their HVAC systems.

One of the standout features of the Carrier 30GN series is its flexibility. This chiller model is available in a range of capacities, specifically from 40 to 420 tons, allowing for customized solutions based on specific cooling demands. Such versatility enables this unit to cater to a broad array of installations, from small commercial spaces to larger industrial facilities.

The Carrier 30GN040-420 utilizes a scroll compressor design, known for its reliability and efficiency. The scroll technology allows for a reduction in the number of moving parts, resulting in lower maintenance costs and increased durability. Additionally, the unit operates with environmentally friendly refrigerants such as R-410A, promoting sustainability without compromising performance.

Energy efficiency is another significant aspect of this model. The 30GN series is designed to provide high energy efficiency ratios (EER), which translates to lower operational costs for users over the lifespan of the unit. This is particularly beneficial in an era where energy costs are consistently rising.

The advanced controls found within the Carrier 30GN040-420 further enhance its performance and ease of use. The unit is equipped with a microprocessor-based control system that allows for precise temperature management while providing valuable diagnostic information. This feature not only improves the overall reliability of the system but also facilitates proactive maintenance, reducing the risk of unscheduled downtime.

Moreover, the design of the Carrier 30GN040-420 emphasizes quiet operation, making it suitable for environments where noise levels must be minimized. This characteristic is critical for applications in hospitals, schools, or office buildings, where a peaceful atmosphere is essential.

In summary, the Carrier 30GN040-420 chiller provides a robust solution for businesses requiring dependable and efficient cooling. Its features, including flexible capacity options, reliable scroll compressors, energy-efficient performance, advanced controls, and quiet operation, position it as a top choice for various commercial and industrial applications. As technology continues to evolve, models such as the 30GN series remain at the forefront, meeting the demands of modern HVAC needs while ensuring sustainability and efficiency.
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