Carrier 19EF Series Start Up & Operation Manual Download | Manualshive

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Table 10A — Thermistor Temperature (F) vs Resistance/Voltage Drop

TEMPERATURE

VOLTAGE

RESISTANCE

(F)

DROP (V)

(OHMS)

−25.0

4.821

98,010

−24.0

4.818

94,707

−23.0

4.814

91,522

−22.0

4.806

88,449

−21.0

4.800

85,486

−20.0

4.793

82,627

−19.0

4.786

79,871

−18.0

4.779

77,212

−17.0

4.772

74,648

−16.0

4.764

72,175

−15.0

4.757

69,790

−14.0

4.749

67,490

−13.0

4.740

65,272

−12.0

4.734

63,133

−11.0

4.724

61,070

−10.0

4.715

59,081

−9.0

4.705

57,162

−8.0

4.696

55,311

−7.0

4.688

53,526

−6.0

4.676

51,804

−5.0

4.666

50,143

−4.0

4.657

48,541

−3.0

4.648

46,996

−2.0

4.636

45,505

−1.0

4.624

44,066

0.0

4.613

42,679

1.0

4.602

41,339

2.0

4.592

40,047

3.0

4.579

38,800

4.0

4.567

37,596

5.0

4.554

36,435

6.0

4.540

35,313

7.0

4.527

34,231

8.0

4.514

33,185

9.0

4.501

32,176

10.0

4.487

31,202

11.0

4.472

30,260

12.0

4.457

29,351

13.0

4.442

28,473

14.0

4.427

27,624

15.0

4.413

26,804

16.0

4.397

26,011

17.0

4.381

25,245

18.0

4.366

24,505

19.0

4.348

23,789

20.0

4.330

23,096

21.0

4.313

22,427

22.0

4.295

21,779

23.0

4.278

21,153

24.0

4.258

20,547

25.0

4.241

19,960

26.0

4.223

19,393

27.0

4.202

18,843

28.0

4.184

18,311

29.0

4.165

17,796

30.0

4.145

17,297

31.0

4.125

16,814

32.0

4.103

16,346

33.0

4.082

15,892

34.0

4.059

15,453

35.0

4.037

15,027

36.0

4.017

14,614

37.0

3.994

14,214

38.0

3.968

13,826

39.0

3.948

13,449

40.0

3.927

13,084

41.0

3.902

12,730

42.0

3.878

12,387

43.0

3.854

12,053

44.0

3.828

11,730

45.0

3.805

11,416

46.0

3.781

11,112

47.0

3.757

10,816

48.0

3.729

10,529

49.0

3.705

10,250

50.0

3.679

9,979

51.0

3.653

9,717

52.0

3.627

9,461

53.0

3.600

9,213

54.0

3.575

8,973

55.0

3.547

8,739

56.0

3.520

8,511

57.0

3.493

8,291

58.0

3.464

8,076

59.0

3.437

7,868

60.0

3.409

7,665

61.0

3.382

7,468

62.0

3.353

7,277

63.0

3.323

7,091

64.0

3.295

6,911

65.0

3.267

6,735

66.0

3.238

6,564

67.0

3.210

6,399

68.0

3.181

6,238

69.0

3.152

6,081

70.0

3.123

5,929

TEMPERATURE

VOLTAGE

RESISTANCE

(F)

DROP (V)

(OHMS)

71

3.093

5,781

72

3.064

5,637

73

3.034

5,497

74

3.005

5,361

75

2.977

5,229

76

2.947

5,101

77

2.917

4,976

78

2.884

4,855

79

2.857

4,737

80

2.827

4,622

81

2.797

4,511

82

2.766

4,403

83

2.738

4,298

84

2.708

4,196

85

2.679

4,096

86

2.650

4,000

87

2.622

3,906

88

2.593

3,814

89

2.563

3,726

90

2.533

3,640

91

2.505

3,556

92

2.476

3,474

93

2.447

3,395

94

2.417

3,318

95

2.388

3,243

96

2.360

3,170

97

2.332

3,099

98

2.305

3,031

99

2.277

2,964

100

2.251

2,898

101

2.217

2,835

102

2.189

2,773

103

2.162

2,713

104

2.136

2,655

105

2.107

2,597

106

2.080

2,542

107

2.053

2,488

108

2.028

2,436

109

2.001

2,385

110

1.973

2,335

111

1.946

2,286

112

1.919

2,239

113

1.897

2,192

114

1.870

2,147

115

1.846

2,103

116

1.822

2,060

117

1.792

2,018

118

1.771

1,977

119

1.748

1,937

120

1.724

1,898

121

1.702

1,860

122

1.676

1,822

123

1.653

1,786

124

1.630

1,750

125

1.607

1,715

126

1.585

1,680

127

1.562

1,647

128

1.538

1,614

129

1.517

1,582

130

1.496

1,550

131

1.474

1,519

132

1.453

1,489

133

1.431

1,459

134

1.408

1,430

135

1.389

1,401

136

1.369

1,373

137

1.348

1,345

138

1.327

1,318

139

1.308

1,291

140

1.291

1,265

141

1.289

1,240

142

1.269

1,214

143

1.250

1,190

144

1.230

1,165

145

1.211

1,141

146

1.192

1,118

147

1.173

1,095

148

1.155

1,072

149

1.136

1,050

150

1.118

1,029

151

1.100

1,007

152

1.082

986

153

1.064

965

154

1.047

945

155

1.029

925

156

1.012

906

157

0.995

887

158

0.978

868

159

0.962

850

160

0.945

832

161

0.929

815

162

0.914

798

163

0.898

782

164

0.883

765

165

0.868

750

166

0.853

734

TEMPERATURE

VOLTAGE

RESISTANCE

(F)

DROP (V)

(OHMS)

167

0.838

719

168

0.824

705

169

0.810

690

170

0.797

677

171

0.783

663

172

0.770

650

173

0.758

638

174

0.745

626

175

0.734

614

176

0.722

602

177

0.710

591

178

0.700

581

179

0.689

570

180

0.678

561

181

0.668

551

182

0.659

542

183

0.649

533

184

0.640

524

185

0.632

516

186

0.623

508

187

0.615

501

188

0.607

494

189

0.600

487

190

0.592

480

191

0.585

473

192

0.579

467

193

0.572

461

194

0.566

456

195

0.560

450

196

0.554

445

197

0.548

439

198

0.542

434

199

0.537

429

200

0.531

424

201

0.526

419

202

0.520

415

203

0.515

410

204

0.510

405

205

0.505

401

206

0.499

396

207

0.494

391

208

0.488

386

209

0.483

382

210

0.477

377

211

0.471

372

212

0.465

367

213

0.459

361

214

0.453

356

215

0.446

350

216

0.439

344

217

0.432

338

218

0.425

332

219

0.417

325

220

0.409

318

221

0.401

311

222

0.393

304

223

0.384

297

224

0.375

289

225

0.366

282

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Summary of Contents for 19EF Series

Page 1: ...When it is necessary to heat refrigerant use only warm 110 F 43 C water DO NOT REUSE disposable nonreturnable cylinders or attempt to refill them It is DANGEROUS AND ILLEGAL When cylinder is emptied...

Page 2: ...ion 28 Tower Fan Relay 28 Auto Restart After Power Failure 28 Water Brine Reset 28 Demand Limit Control Option Requires Optional 8 Input Module 29 Surge Prevention Algorithm 29 Surge Protection 29 Lea...

Page 3: ...ant Charge 50 Refrigerant Leak Testing 50 Refrigerant Leak Rate 50 Test After Service Repair or Major Leak 50 REFRIGERANT TRACER TO PRESSURIZE WITH DRY NITROGEN Page Repair the Leak Retest and Apply S...

Page 4: ...RIZATION Fig 1 and 2 Machine Information Plate The information plate is located on the left side of the machine control center panel System Components The components include the cooler and condenser h...

Page 5: ...Actuator 6 Economizer Low Side Float Cover Hidden 7 Hot Gas Bypass Line 8 Condenser Waterbox Cover 9 Economizer 10 High Side Float Box Cover 11 Cooler Relief Valves Hidden 12 Motor Terminals Hidden 1...

Page 6: ...zer gas has to pass through only half the compres sion cycle to reach condenser pressure there is a savings in power hence the term economizer The cooled liquid refrigerant in the economizer is me ter...

Page 7: ...pressure difference prevents oil in the trans mission cavity from leaking into the motor shell Several safety devices monitor the lubrication system In the event of a power failure a small oil reservo...

Page 8: ...ity A decrease in guide vane opening decreases capacity Machine protection is provided by the processor which monitors the digital and analog inputs and executes capacity overrides or safety shut down...

Page 9: ...nsor is required The sensors or 4 to 20 mA signals are field installed The spare temperature sensors must have the same temperature resistance curve as the other temperature sen sors on this unit Thes...

Page 10: ...Fig 5 19EF Controls and Sensor Locations cont 10...

Page 11: ...klight Power Supply Not Shown Fig 8 Control Center Front View with Options Module 1 T2 Hot Gas Bypass Relay Oil Pump Relay and Oil Heater Relay Power Transformer 2 T4 8 Input Module Transformer Not Sh...

Page 12: ...me of alarm The Status tables will show the updated informa tion Once all alarms have been cleared by pressing the RESET softkey the default LID screen will return to normal operation LID DEFAULT SCRE...

Page 13: ...Fig 12 19EF Menu Structure 13...

Page 14: ...Fig 13 19EF Service Menu Structure 14...

Page 15: ...s NEXT or PREVIOUS to highlight the desired status table The list of tables is Status01 Status of control points and sensors Status02 Status of relays and contacts Status03 Status of both optional 8 i...

Page 16: ...REASE or DECREASE to change the time values Override values are in one hour incre ments up to 4 hours b Press ENABLE to select days in the day of week fields Press DISABLE to eliminate days from the p...

Page 17: ...default screen 1 Press MENU 2 Press STATUS STATUS01 will be highlighted 3 Press SELECT DESCRIPTION RANGE UNITS REFERENCE POINT NAME ALARM HISTORY Control Mode Reset Off Local CCN MODE Run Status Timeo...

Page 18: ...screen 1 Press MENU 2 Press STATUS 3 Scroll down to highlight STATUS03 4 Press SELECT DESCRIPTION RANGE UNITS REFERENCE POINT NAME ALARM HISTORY OPTIONS BOARD 1 Demand Limit 4 20 mA 4 20 mA DEM OPT Te...

Page 19: ...3 Load Pulldown Min 5 20 kw ramp 10 Select Ramp Type 0 1 ramp opt 1 Temp 0 Load 1 Loadshed Group Number 0 99 ldsgrp 0 Loadshed Demand Delta 0 60 ldsdelta 20 Maximum Loadshed Time 0 120 MIN maxldstm 60...

Page 20: ...2 0 0 3 1 1 DEG F DEG C cw db 1 0 0 6 Recycle Restart Delta T 2 0 10 0 1 1 5 6 DEG F DEG C rcyc dt 5 2 8 Surge Limit HGBP Option 0 1 srg hgbp 0 Select Surge 0 HGBP 1 Surge HGBP Delta T1 0 5 15 0 3 8 3...

Page 21: ...LE ENABLE sp2 20 ma DISABLE SPARE ALERT ENABLE Disable 0 Low 1 High 2 Temp Alert Threshold Spare Temp 4 Enable 0 2 spr4 en 0 Spare Temp 4 Alert 40 245 40 118 DEG F DEG C spr4 al 245 118 Spare Temp 5 E...

Page 22: ...Brine Deadband 0 5 2 0 3 1 1 DEG F DEG C cwdb NOTE Overriding is not supported on this maintenance screen Active overrides show the associated point in alert Only values with capital letter reference...

Page 23: ...AD LAG Configuration DISABLE LEAD LAG STANDBY INVALID leadlag Current Mode DISABLE LEAD LAG STANDBY CONFIG llmode Load Balance Option DISABLE ENABLE loadbal LAG Start Time 0 60 MIN lagstart LAG Stop T...

Page 24: ...nt Service3 table DEMAND LIMITING The PIC will respond to the AC TIVE DEMAND LIMIT set point by limiting the opening of the guide vanes It will compare the set point to either COM PRESSOR MOTOR LOAD o...

Page 25: ...trip to trip the circuit breaker Table 3 Protective Safety Limits and Control Settings MONITORED PARAMETER LIMIT APPLICABLE COMMENTS TEMPERATURE SENSORS OUT OF RANGE 40 to 245 F 40 to 118 3 C Must be...

Page 26: ...n table Config table see Table 2 Motor load is the default type Capacity Override Table 4 These can prevent some safety shutdowns caused by exceeding motor amper age limit refrigerant low temperature...

Page 27: ...ng The heat exchanger uses chilled or condenser water as the cooling liquid A solenoid and cock valve regulate flow to control oil temperature entering the bearings The valve is set to maintain 140 F...

Page 28: ...im ers are ignored during this type of start up When power is restored after the power failure and if the compressor had been running the oil pump will be ener gized for one minute prior to the evapor...

Page 29: ...ll go into a corrective action mode If the actual values are below the line the al gorithm takes no action Modification of the default set points of the MINIMUM and MAXIMUM load points is described in...

Page 30: ...d and capacity requirements are not met The lead lag option op erates in CCN mode only If any other chiller configured for lead lag is set to the LOCAL or OFF modes it will be un available for lead la...

Page 31: ...faulted the standby chiller reverts to a stand alone CCN mode of operation If the lead chiller is in an alarm condition as shown on the LID panel the RESET softkey is pressed to clear the alarm and t...

Page 32: ...ER temperature is less than the ICE BUILD SET POINT If the ICE BUILD RECYCLE OPTION is set to ENABLE a recycle shutdown occurs and recycle start up shall be based on LEAVING CHILLED WATER tem perature...

Page 33: ...e at a time An asterisk appears as you enter each digit The menu bar Next Previous Select Exit is displayed to indicate that you have successfully logged on If the password is entered incorrectly an e...

Page 34: ...switches and waits until the WATER FLOW VERIFY TIME operator configured default 5 minutes to confirm flow After flow is verified the chilled water brine temperature is compared to CONTROL POINT plus D...

Page 35: ...control point and the CONTROL POINT has not increased in the last 5 minutes when ECW CONTROL OPTION is enabled the ENTER ING CHILLED WATER temperature is more than 5 F 3 C below the CONTROL POINT and...

Page 36: ...shell and the oil charge shipped in the com pressor The cooler will have a 15 psig 103 kPa refrigerant charge Units may be ordered with the refrigerant shipped separately along with a 15 psig 103 kPa...

Page 37: ...record the manometer or indicator reading 4 a If the leakage rate is less than 0 05 in Hg 17 kPa in 24 hours the machine is sufficiently tight b If the leakage rate exceeds 0 05 in Hg 17 kPa in 24 hou...

Page 38: ...Fig 24 19EF Leak Test Procedures 38...

Page 39: ...6 55 138 222 76 140 229 09 Table 5B HFC 134a Pressure Temperature C TEMPERATURE C PRESSURE kPa 18 0 44 8 16 7 51 9 15 6 59 3 14 4 66 6 13 3 74 4 12 2 82 5 11 1 90 8 10 0 99 4 8 9 108 0 7 8 118 0 6 7 1...

Page 40: ...ded in accordance with job drawings certi fied drawings and all applicable electrical codes 8 Make sure that the customer s contractor has verified proper operation of the pumps cooling tower fans and...

Page 41: ...freely Check the mechanical interlock between contactors to ensure that 1S and 2M contactors cannot be closed at the same time Check all other electro mechanical devices e g relays timers for free mo...

Page 42: ...OCCPC03S should be con figured if a CCN system is being installed or if a secondary time schedule is required It is normally input through the CCN Building Supervisor but it can be configured at the L...

Page 43: ...bles to select and view or modify Carrier s certified drawings will have the configuration values required for the jobsite Modify these tables only if requested Config Table Modifications Change the v...

Page 44: ...to run after pumpdown lockout High Altitude Locations Recalibration of the pres sure transducers will be necessary as the machine was ini tially calibrated at sea level Refer to the calibration proce...

Page 45: ...f this value is overridden to stop in order to prevent accidental start up Manual Operation of the Guide Vanes Manual operation of the guide vanes is helpful to establish a steady motor current for ca...

Page 46: ...T and then the STOP and ENTER softkeys SUPVSR will ap pear after the value When attempting to restart remember to release the override The default machine message line will also state that the Start S...

Page 47: ...e of 60 to 105 F 15 to 41 C The condenser entering water temperature should be controlled below the specified design entering water temperature to save on compressor kilowatt requirements 7 Cooler pre...

Page 48: ...ase the guide vanes to AUTOMATIC mode press the RELEASE softkey NOTE Manual control will increase the guide vanes and override the pulldown rate during start up Motor current above the electrical dema...

Page 49: ...IME Refrigerant Water Refrigerant Water BEARING TEMP Oil Motor Press Temp Pressure Temp Press Temp Pressure Temp Press Diff Temp reservoir Level FLA In Out GPM In Out In Out GPM In Out Amperage or van...

Page 50: ...lly ac ceptable refrigerant as a tracer for leak test procedures TO PRESSURIZE WITH DRY NITROGEN Another method of leak testing is to pressurize with nitrogen only and use a soap bubble solution or an...

Page 51: ...7 for Control Test functions Change Oil and Oil Filters 1 Transfer refrigerant into storage tanks 2 Turn off oil heater 3 When machine pressure is 5 psig 35 kPa or less drain the oil reservoir by open...

Page 52: ...e tubes have internal ridges a rotary type tube cleaning system is necessary to fully clean the tubes Upon inspection the tube condition will de termine the scheduled frequency for cleaning and will i...

Page 53: ...ype This means that the resistance of the sensor varies with temperature All sensors have the same resistance characteristics Determine sensor temperature by measuring voltage drop if the con trols ar...

Page 54: ...ires Unscrew the transducer from the Schrader fitting When installing a new transducer do not use pipe sealer which can plug the sensor Put the plug connector back on the sensor and snap into place Ch...

Page 55: ...TART PENDING REMOTE CONTACT CLOSED Unit in recycle mode chilled water temperature is not high enough to start RECYCLE RESTART PENDING START COMMAND IN EFFECT Chiller START STOP on Status01 manually fo...

Page 56: ...ation Check guide vane closure at start up Check that guide vanes are closed at start up Check starter for proper operation Reduce unit pressure if possible FAILURE TO START STARTER TRANSITION FAULT R...

Page 57: ...ndenser pressure override See Capacity Overrides Table 4 Correct operating condition modify set point or release override RUN CAPACITY LIMITED HIGH MOTOR TEMPERATURE MTRW VALUE exceeded limit of LIMIT...

Page 58: ...valves and pump operation PROTECTIVE LIMIT LOW CONDENSER WATER FLOW CDFL Flow Fault Check cond pump flow switch PROTECTIVE LIMIT HIGH CONDENSER PRESSURE High Cond Pressure OPEN Check switch 2C aux an...

Page 59: ...reduce pressure Check ambient conditions Check con denser pressure for accuracy Check pump operation in Control Test table RECYCLE ALERT EXCESSIVE RECYCLE STARTS Excessive recycle starts The machine...

Page 60: ...heck through Control Test Defective temperature sensor Check sensor accuracy Low Oil Sump Temperature While Running Less than 100 F 38 C Check for proper oil level not enough oil Check for proper refr...

Page 61: ...797 4 511 82 2 766 4 403 83 2 738 4 298 84 2 708 4 196 85 2 679 4 096 86 2 650 4 000 87 2 622 3 906 88 2 593 3 814 89 2 563 3 726 90 2 533 3 640 91 2 505 3 556 92 2 476 3 474 93 2 447 3 395 94 2 417 3...

Page 62: ...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 40...

Page 63: ...rminal strips Terminal 1 of PSIO mod ule is connected to Terminal 1 of each of the other mod ules Terminals 2 and 3 are connected in the same man ner If a Terminal 2 wire is connected to Terminal 1 th...

Page 64: ...sensor inputs and demand limit inputs Each option module contains 8 inputs each input meant for a specific duty See the wiring diagram for exact module wire terminations Inputs for each of the option...

Page 65: ...o prevent the new PSIO module from uploading incorrect run hours into memory 3 Check that all power to the unit is off Carefully dis connect all wires from the defective module by unplug ging the 6 co...

Page 66: ...AT EXCHANGER CODE WATERBOX TYPE DESIGN WATER PRESSURE COVER WEIGHT psi kPa lb kg Cooler 26 56 NIH 150 1034 640 290 250 1723 860 390 Marine 150 1034 250 1723 760 345 Condenser 26 NIH 150 1034 850 386 2...

Page 67: ...VIEW A VIEW B Refer to Table 14 for dimensions DIM 2 1 9 SEE VIEW A 3 4 5 6 7 15 16 17 18 8 SEE VIEW B Fig 35 Compressor Fits and Clearances 67...

Page 68: ...ing to Bearing Housing 0005 0020 0127 0508 Diametral See Fig 35 for item callouts Clearances represent factory tolerances for new components Table 15 Impeller Clearances FRAME CODE SHROUD CODE IMPELLE...

Page 69: ...Fig 36 Electronic PIC Controls Wiring Schematic 69...

Page 70: ...Fig 36 Electronic PIC Controls Wiring Schematic cont 70...

Page 71: ...Fig 37 Machine Power Panel Starter Assembly and Motor Wiring Schematic 71...

Page 72: ...r Duties 47 Options Module 64 Overview Troubleshooting Guide 53 Physical Data 66 PIC System Components 8 PIC Systems Functions 24 Power Up the Controls and Check the Oil Heater 42 Preparation Initial...

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