Carrier HXC076-186, 30HXA installation instructions Ð Unit Electrical Data, 30HXC Units, Mca, Rla

Page 16

Table 4A Ð Unit Electrical Data, 30HXC Units* (cont)

 

VOLTAGE

 

 

POWER CIRCUIT

 

CONTROL CIRCUIT

 

ICF

UNIT

 

Supplied

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30HXC

Nameplate

 

 

 

 

Recommended

Voltage

 

 

 

 

 

 

 

(3 Ph)

Min

Max

MCA

MOCP

(Single

Min

Max

MCA

MOCP

WD

XL

 

Fuse Size

 

 

 

 

 

 

Ph)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

208/230-60

187

253

285/197

500/350

350/250

115-60

104

127

 

 

591

²

 

460-60

414

506

200

300

250

115-60

104

127

 

 

287

756

161

575-60

518

633

160

225

200

115-60

104

127

 

 

230

605

380-60

342

418

242

350

300

230-60

207

254

15

15

325

843

 

230-50

207

253

266/182

450/300

350/225

230-50

198

254

 

 

578

²

 

346-50

325

380

273

400

350

230-50

198

254

 

 

394

²

 

380/415-50

342

440

249

350

300

230-50

198

254

 

 

358

944

 

208/230-60

187

253

238/285

400/500

300/400

115-60

104

127

 

 

624

²

 

460-60

414

506

215

300

250

115-60

104

127

 

 

302

771

171

575-60

518

633

172

250

200

115-60

104

127

 

 

242

617

380-60

342

418

260

350

300

230-60

207

254

15

15

343

861

 

230-50

207

253

219/266

350/450

300/350

230-50

198

254

 

 

607

²

 

346-50

325

380

145/176

250/300

175/225

230-50

198

254

 

 

413

²

 

380/415-50

342

440

267

350

300

230-50

198

254

 

 

376

962

 

208/230-60

187

253

285/285

500/500

400/400

115-60

104

127

 

 

661

²

 

460-60

414

506

232

300

300

115-60

104

127

 

 

319

788

186

575-60

518

633

185

250

225

115-60

104

127

 

 

255

630

380-60

342

418

156/156

250/250

200/200

230-60

207

254

15

15

364

882

 

230-50

207

253

266/266

450/450

350/350

230-50

198

254

 

 

645

²

 

346-50

325

380

176/176

300/300

225/225

230-50

198

254

 

 

438

²

 

380/415-50

342

440

289

400

350

230-50

198

254

 

 

399

985

 

LEGEND

ICF

Ð Maximum Instantaneous Current Flow during start-up

 

(the point in the starting sequence where the sum of the

 

LRA for the start-up compressor, plus the total RLA for

 

all running compressors, plus the total FLA for all run-

 

ning fan motors is at a maximum)

MCA

Ð Minimum Circuit Ampacity (for wire sizing)

MOCP Ð Maximum Overcurrent Protection

RLA

Ð Rated Load Amps

WD

Ð Wye-Delta Start

XL

Ð Across-the-Line Start

*Refer to Carrier's electronic catalog for the most current electrical data.

²Wye-Delta Start is standard. Not available in across-the-line start. **The 30HX186 units have 2 terminal blocks/non-fused disconnects

and 6 parallel conductors/non-fused disconnects.

²²The 30HXC171 and 186 units have 2 terminal blocks/non-fused disconnects and 6 parallel conductors/non-fused disconnects.

NOTES:

1.Main power must be supplied from a ®eld-supplied fused electri- cal service with a (factory- or ®eld-installed) disconnect located in sight from the unit.

2.Control circuit power must be supplied from a separate source through a ®eld-supplied disconnect. The control circuit accessory trans- former may be applied to power from the main unit power supply.

3.Maximum incoming wire size for each terminal block is 500 kcmil.

4.Maximum allowable phase imbalance is: voltage, 2%; amps, 5%.

5.Units with one MCA value have one main terminal block. Units with 2 MCA values require multiple conductors.

6.Use copper conductors only.

7. The MOCP is calculated as follows:

MOCP = (2.25) (largest RLA) + the sum of the other RLAs. Size the fuse one size down from the result. The RLAs are listed on the unit nameplate.

The recommended fuse size in amps (RFA) is calculated as follows:

RFA = (1.50) (largest RLA) + the sum of the other RLAs. Size the fuse one size up from the result. The RLAs are listed on the unit nameplate.

8.Units have the following power wiring terminal blocks and parallel conductors:

 

TERMINAL

PARALLEL

VOLTAGE

BLOCKS

CONDUCTORS

OR NON-FUSED

OR NON-FUSED

 

 

DISCONNECTS

DISCONNECTS

208/230

2

6

460

1

3

575

1

3

380**

1

3

230

2

6

346²²

1

3

380/415

1

3

 

 

 

16

Image 16
Contents Installation Instructions Base Unit Dimensions, 30HXC076-146 Units Base Unit Dimensions, 30HXC161-186 Units Base Unit Dimensions, 30HXA076-146 Units Base Unit Dimensions, 30HXA161-186 Units Unit Mounting Plate no 30HXC Unit Mounting Plate no 30HXAÐ Physical Data, English Ð Physical Data, SI Page Page Discharge Line 2 F 1.1 C Drop Saturated Temperature Example Saturated Pressure Discharge Temp134a Psig KPa 100 37.7 124.3 857 195.9 Saturated Pressure Liquid Temp36.7 120.1 828 190.2 R-134a Discharge Line Sizing, 30HXA Units Page Ð Unit Electrical Data, 30HXC Units Voltage Power Circuit Control Circuit ICF UnitMCA Mocp Ð Unit Electrical Data, 30HXC Units* MCARLA 208/230 460 575 380 346²² 380/415Ð Unit Electrical Data, 30HXA Units Ð Unit Electrical Data, 30HXA Units* Unit Size Nameplate Compressor Numbers 30HXC Ð Compressor Electrical Data, 30HXC UnitsRLA LRA 126-WD 136-WD146-WD 161-WD186-WD Ð Compressor Electrical Data, 30HXA Units Unit Size Nameplate Compressor Numbers 30HXA460-60 115.4 820 94.8 685 Equip NECALM CCNComm CwfsInstall Accessories 30HXA System Charge for Start-Up Unit Circuit a Circuit B Charge 30HXAPackaged Service Training

30HXA, HXC076-186 specifications

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