Carrier 69NT40-511-1 Manual de operación

Models

69NT40-511-1

69NT40-511-199

and

69NT40-521

T-268 Rev G

Container

Refrigeration

Unit

DUE TO THE LARGE NUMBER OF SCHEMATIC

DIAGRAMS CONTAINED IN THIS BOOK, THE

BOOK IS PRESENTED AS TWO FILES.

REFER TO FILE T268--TEXT FOR THE TABLE

OF CONTENTS, CHAPTERS 1 THROUGH 6

AND INDEX.

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Carrier Transicold Division, Carrier Corporation, P.O. Box 4805, Syracuse, N.Y. 13221

OPERATION AND

SERVICE MANUAL

ECarrier Corporation 1999 SPrinted in U. S. A. 0499

CONTAINER REFRIGERATION UNIT

MODELS

69NT40-511-1

69NT40-511-199

and

69NT40-521

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SECTION 7

7-1 T-268-07

SECTION 7

ELECTRICAL WIRING SCHEMATIC AND DIAGRAMS

7.1 INTRODUCTION

This section contains Electrical Schematics and Wiring Diagrams covering the Models listed in Table 1-1. The

following general safety notices supplement the specific warnings and cautions appearing elsewhere in this manual.

They are recommended precautions that must be understood and applied during operation and maintenance of the

equipment covered herein.

WARNING

It has been determined that pressurized, air-rich mixtures of refrigerants and air can undergo

combustion when exposed to an ignition source.

WARNING

Beware of unannounced starting of the evaporator and condenser fans. Do not open the condenser fan

grille before turning power OFF and disconnecting power plug.

WARNING

Make sure power to the unit is OFF and power plug disconnected before removing capacitor(s).

WARNING

Do not attempt to remove power plug(s) before turning OFF start-stop switch (ST), unit circuit

breaker(s) and external power source.

Make sure the power plugs are clean and dry before connecting to any power receptacle.

WARNING

Make sure power to the unit is OFF and power plug disconnected before replacing the compressor.

WARNING

Before disassembly of the compressor make sure to relieve the internal pressure very carefully by

slightly loosening the bolts on both service valve flanges/blank valve pads, then lightly tapping sides of

the valve flanges/pads with a hammer to break the seal.

CAUTION

Use only Carrier Transicold approved Polyol Ester Oil (POE) -- Castrol-Icematic SW20 compressor oil

with R-134a. Buy in quantities of one quart or smaller. When using this hygroscopic oil, immediately

reseal. Do not leave container of oil open or contamination will occur.

WARNING

Do not attempt to do service work on the Controller/DataCORDER module. Breaking of the warranty

seal will void the warranty.

CAUTION

Remove the Controller/DataCORDER module and unplug all wire harness connectors before

performing any arc welding on any part of the container.

Do not remove wire harnesses from module unless you are grounded to the unit frame with a static safe

wrist strap.

NOTE

To avoid damage to the earth’s ozone layer, use a refrigerant recovery system whenever removing refrigerant.

When working with refrigerants you must comply with all local government environmental laws. In the U.S.A.,

refer to EPA section 608.

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7-2T-268-07

Figure 7-1. Electrical Schematic -- See Model Chart

(Sheet 1 of 2)

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SECTION 7

7-3 T-268-07

Figure 7-1. Electrical Schematic -- See Model Chart

(Sheet 2 of 2)

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7-4T-268-07

Figure 7-2. Electrical Wiring Diagram -- See Model Chart

(Sheet 1 of 2)

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SECTION 7

7-5 T-268-07

Figure 7-2. Electrical Wiring Diagram -- See Model Chart

(Sheet 2 of 2)

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7-6T-268-07

Figure 7-3. Electrical Schematic -- See Model Chart

(Sheet 1 of 2)

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SECTION 7

7-7 T-268-07

Figure 7-3. Electrical Schematic -- See Model Chart

(Sheet 2 of 2)

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7-8T-268-07

Figure 7-4. Electrical Wiring Diagram -- See Model Chart

(Sheet 1 of 2)

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