Heat Controller BG-101G, BG-103G, BG-123G, BG-143G, BG-81G, BGE-103G, BGE-123G service manual

Heat Controller, Inc. • 1900 Wellworth Ave. • Jackson, MI 49203 • (517)787-2100 • www.heatcontroller.com

SERVICE MANUAL

BG-81G

BG-101G

BG-103G

BG-123G

BGE-103G

BGE-123G

BG-143G

Contents

Main SERVICE MANUAL Thru-the-Wall Series with R-410A Table of Contents 1. PRECAUTION 1.1 Safety precaution 1.2 Warning 1.3 Caution 2. FEATURES AND PANEL 2.1 Features 2.2 Control panel illustration Control panel for cooling only models: Control panel for cooling and heating models: Page 3. UNIT DIMENSION 3.1 Unit dimension: 4. OPERATION LIMITS 4.1 Cooling operation 4.2 Electric heating operation 5. PROTECTION FUNCTION 5.1 Symbol & Meaning 5.2 Protection Function 6. COMPONENT OPERATION & TESTING 6.1 COMPRESSORS Page 6.2 FAN MOTOR 6.3 CAPACITOR, RUN 6.4 THERMOSTAT ADJUSTMENT 6.5 HEATING ELEMENT 6.6 VALVE, DRAIN PAN 6.7 SEALED REFRIGERATION SYSTEM REPAIRS Page Page 7. WIRING DIAGRAM 8. TROUBLESHOOTING 8.1 Flow Chart Page Page Page Page Page Page Page Page Page 8.2 General Troubleshooting Page Page 8.3 Troubleshooting Cooling Page 8.4 Troubleshooting Heating Page 9. INSTALLATION ACCESSORY LIST 10. CHARACTERISTIC OF TEMPERATURE SENSOR