Heat Controller BG-103A service manual Contents

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CONTENTS

1. PREFACE

 

1.1 SAFETY PRECAUTIONS

2

1.2 INSULATION RESISTANCE TEST

2

1.3 SPECIFICATIONS

3

1.4 FEATURES

4

1.5 CONTROL LOCATIONS

4

2. DISASSEMBLY INSTRUCTIONS

 

2.1 MECHANICAL PARTS

5

2.1.1 FRONT GRILLE

5

2.1.2 CABINET

5

2.1.3 CONTROL BOX

5

2.2 AIR HANDLING PARTS

6

2.2.1 ORIFICE AND TURBO FAN

6

2.2.2 FAN

6

2.2.3 SHROUD

7

2.3 ELECTRICAL PARTS

7

2.3.1 MOTOR

7

2.3.2 COMPRESSOR

7

2.3.3 CAPACITOR

7

2.3.4 POWER CORD

8

2.3.5 THERMISTOR

8

2.4 REFRIGERATION CYCLE

9

2.4.1 CONDENSER

9

2.4.2 EVAPORATOR

9

2.4.3 CAPILLARY TUBE

9

3. INSTALLATION

 

3.1 INSTALLATION REQUIREMENTS

12

3.2 INSTALLATION

13

3.3 PROCEDURE A

14

3.4 PROCEDURE B

15

3.5 PROCEDURE C

17

4. TROUBLESHOOTING GUIDE

 

4.1 OUTSIDE DIMENSIONS

19

4.2 PIPING SYSTEM

19

4.3 TROUBLESHOOTING GUIDE

20

5. SCHEMATIC DIAGRAM

 

5.1 CIRCUIT DIAGRAM

25

6. EXPLODED VIEW

26

7. REPLACEMENT PARTS LIST

27

1. PREFACE

This SERVICE MANUAL provides various service information, including the mechanical and electrical parts etc. This room air conditioner was manufactured and assembled under a strict quality control system. The refrigerant is charged at the factory. Be sure to read the safety precautions prior to servicing the unit.

1.1 SAFETY PRECAUTIONS

1.2 INSULATION RESISTANCE TEST

1.When servicing the unit, turn off the air conditioner and unplug the power cord.

2.Observe the original lead dress.

If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

3.After servicing the unit, make an insulation resistance test to protect the customer from being exposed to shock hazards.

1.Unplug the power cord and connect a jumper between 2 pins (black and white).

2.The grounding conductor (green or green & yellow) is to be open.

3.Measure the resistance value with an ohm meter between the jumpered lead and each exposed metallic part on the equipment.

4.The value should be over 1M .

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Contents Heat CONTROLLER, INC Contents Specifications 1.3.1 for BG-103A RemarkCooling only Model Operation FeaturesControl Locations VentilationCabinet Mechanical PartsFront Grille Control BOXAIR Handling Parts ORIFICE, and Turbo FANCapacitor Electrical PartsCompressor Power Cord ThermistorEvaporator Refrigeration CycleCondenser Capillary TubePage Pulling Vacuum Electrical Service Installation RequirementsInstallation Hardware Required ToolsHOW to Install Items in Installation HardwareProcedure a Toassembletrim,tpthetabofeachpieceProcedure B Top ViewWall Procedure C Wall sleeve inchesParts and Installation Outside Dimensions Piping SystemTroubleshooting Guide Fails to Start Complaint Cause Remedy Room AIR Conditioner Voltage Limits Name Plate Rating Minimum MaximumComplaint Cause Remedy Circuit Diagram Exploded View Replacement Parts List Description QTY RemarkHeat CONTROLLER, INC