Heat Controller BDE-123-A, BDE-103-A service manual Contents, Preface

CONTENTS

1. PREFACE
1.1 SAFETY PRECAUTIONS	2
1.2 INSULATION RESISTANCE TEST	2
1.3 FEATURES	4
1.4 CONTROL LOCATIONS	4
2. DISASSEMBLY INSTRUCTIONS
2.1 MECHANICAL PARTS	6
2.1.1 FRONT GRILLE	6
2.1.2 CABINET	6
2.1.3 CONTROL BOX	6
2.2 AIR HANDLING PARTS	7
2.2.1 ORIFICE, HEATER ASSY AND TURBO FAN	7
2.2.2 FAN	7
2.2.3 SHROUD	8
2.3 ELECTRICAL PARTS	8
2.3.1 MOTOR	8
2.3.2 COMPRESSOR	8
2.3.3 CAPACITOR	8
2.3.4 POWER CORD	9
2.3.5 THERMOSTAT	9
2.3.6 ROTARY SWITCH	9

2.4 REFRIGERATION CYCLE	10
2.4.1 CONDENSER	10
2.4.2 EVAPORATOR	10
2.4.3 CAPILLARY TUBE	10
3. INSTALLATION
3.1 HOW TO INSTALL THE UNIT	13
3.2 INSTALLATION KITS CONTENTS	14
3.3 SUGGESTED TOOL REQUIREMENTS	15
3.3.1 PREPARATION OF SLEEVE	15
3.3.2 UNIT INSTALLATION	16
4. TROUBLESHOOTING GUIDE
4.1 OUTSIDE DIMENSIONS	17
4.2 PIPING SYSTEM	17
4.3 TROUBLESHOOTING GUIDE	18
5. SCHEMATIC DIAGRAM
5.1 CIRCUIT DIAGRAM	23
6. EXPLODED VIEW	24
7. REPLACEMENT PARTS LIST	25

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.When servicing the unit, set the ROTARY SWITCH or POWER SWITCH to OFF(O) 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.

—2—

1.2 INSULATION RESISTANCE TEST

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 at all the positions (except OFF or O) of the ROTARY SWITCH.

4.The value should be over 1MΩ .