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Bosch Manuals
Heat Pump
BVA-36WN1-M20
Service manual
Bosch BVA-36WN1-M20 Service Manual
Split system heat pump
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Key to Symbols and Safety Instructions
Key to Symbols
Safety
Bosch IDS BVA2.0
Bosch IDS 2.0 | 5
Power Supply
Models & Part Numbers
Nomenclature
Dimensions
Supply Air
Schematic Diagram
Speed Taps
Models & Part Numbers
Airflow Performance
Bosch IDS BVA2.0
AHRI 210/240 Performance Data
Bosch IDS BOVA2.0
Product Specifi Cations
Bosch IDS BVA2.0
Bosch IDS BOVA2.0
Extended Performance Data
Outdoor Unit (BOVA) + Indoor Unit (BVA) - Cooling Mode
Outdoor Unit (BOVA) + Indoor Unit (BVA) - Heating Mode
Layout of Functional Components
Ton
Fan Motor
Ton
Refrigerant Flow Diagrams
Cooling Operation
Heating Operation
Control
Crankcase Heater Control
Other Operations
Defrost Operation
Oil Return Operation
Force Mode Operation
Indoor Fan Motor Function
Field Settings
Initial Unit Preparation and Installation Checklist
Initial Start-Up Checklist
Dip Switch Settings
Outdoor Unit Dip Switch Settings
When to Change Outdoor Unit Dip Switch Settings
Indoor Unit Dip Switch Settings
When to Change Indoor Unit Dipswitch Settings
Check Point Values
Diagnosis and Troubleshooting
Control Board Component Layout
BOVA36 Outdoor Unit Control Board
BOVA60 Outdoor Unit Control Board
BVA2.0 Indoor Unit Control Board
Fault Code and Limited Condition Descriptions
Fault Codes and Limited Conditions Troubleshooting
C3 Troubleshooting
E4 Troubleshooting
E5 Troubleshooting
E6 Troubleshooting
E7 Troubleshooting
E9 Troubleshooting
H0 Troubleshooting
H8 Troubleshooting
P0 Troubleshooting
P1/F1 Troubleshooting
P2/H5 Troubleshooting
P3 Troubleshooting
P4 Troubleshooting
P5 Troubleshooting
P8 Troubleshooting
PH Troubleshooting
LO-L9 Troubleshooting
Atl Troubleshooting
Situational Troubleshooting
LED Display Is Blank
System Does Not Start
Poor Capacity
Poor Dehumidifi Cation
Advanced System Check
Abnormal Pressure
Pressure Transducer (PT)
Electronic Expansion Valve (EEV)
Temperature Sensor (T3,T4,T5,Th,T3L,Tf)
High Pressure Switch (HPS)
Outdoor Fan Motor
Indoor Blower Motor
Compressor
System Charge
Outdoor Board Fuse
Indoor Board Fuse
Appendix
Appendix 1 Outdoor Unit Control Board
Wiring Diagram
Main Board
Appendix 2 Indoor Unit Control Board
Additional Information
Pressure Temperature Chart
Refrigeration Cycle
Helpful Links
Replacement Instructions
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Table of Contents
2
Models & Part Numbers
3
Schematic Diagram
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2.0 IDS
Service Manual
IDS Premium
20 SEER System
BVA20
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Table of Contents
Troubleshooting
Diagnosis and Troubleshooting
39
Fault Codes and Limited Conditions Troubleshooting
44
E4 Troubleshooting
45
E5 Troubleshooting
46
E6 Troubleshooting
47
E7 Troubleshooting
48
E9 Troubleshooting
49
H0 Troubleshooting
50
H8 Troubleshooting
51
P0 Troubleshooting
52
P1/F1 Troubleshooting
53
P2/H5 Troubleshooting
54
P3 Troubleshooting
55
P4 Troubleshooting
56
P5 Troubleshooting
57
P8 Troubleshooting
58
PH Troubleshooting
59
LO-L9 Troubleshooting
60
AtL Troubleshooting
61
Situational Troubleshooting
62
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Summarization of Contents
Key to Symbols and Safety Instructions
Key to Symbols
Explains warning symbols and keywords used in the manual.
Safety
Provides important safety precautions and general notices for installation and use.
Nomenclature
Bosch IDS BVA2.0 Model Nomenclature
Explains the model nomenclature for the Bosch IDS BVA2.0 series.
Bosch IDS BOVA2.0 Model Nomenclature
Explains the model nomenclature for the Bosch IDS BOVA2.0 series.
Models & Part Numbers
Dimensions
Bosch IDS BVA2.0 Dimensions
Provides dimensional specifications and diagrams for the BVA2.0 indoor unit.
Bosch IDS BOVA2.0 Dimensions
Provides dimensional specifications and diagrams for the BOVA2.0 outdoor unit.
AHRI 210/240 Performance Data
Bosch IDS BOVA2.0 Performance Data
Presents AHRI performance data for Bosch IDS BOVA2.0 outdoor units.
Product Specifications
Bosch IDS BVA2.0 Product Specifications
Details product specifications for the Bosch IDS BVA2.0 indoor unit.
Bosch IDS BOVA2.0 Product Specifications
Details product specifications for the Bosch IDS BOVA2.0 outdoor unit.
Extended Performance Data
Cooling Mode Performance Data
Provides extended performance data for cooling mode with BOVA/BVA combinations.
Heating Mode Performance Data
Provides extended performance data for heating mode with BOVA/BVA combinations.
Layout of Functional Components
3 Ton Component Layout
Illustrates the functional components of the 3-ton outdoor unit.
5 Ton Component Layout
Illustrates the functional components of the 5-ton outdoor unit.
Refrigerant Flow Diagrams
Cooling Operation Flow Diagram
Depicts the refrigerant flow during cooling and oil return operations.
Heating Operation Flow Diagram
Depicts the refrigerant flow during heating and oil return operations.
Control
Crankcase Heater Control
Explains the operation and purpose of the crankcase heater control.
Other Operations
Details unit operations under specific conditions.
Field Settings
Initial Unit Preparation and Installation Checklist
Provides a checklist for initial unit preparation and installation.
Initial Start-up Checklist
Offers a checklist for initial unit start-up procedures.
Dip Switch Settings
Details dip switch settings and configurations.
Check Point Values
Lists system parameters accessible via the check button for monitoring.
Diagnosis and Troubleshooting
Control Board Component Layout
Identifies components on the control boards.
Fault Code and Limited Condition Descriptions
Lists and describes fault codes and limited condition status codes.
Fault Codes and Limited Conditions Troubleshooting
Provides troubleshooting steps for various fault codes.
Situational Troubleshooting
Addresses common operational issues without specific fault codes.
Advanced System Check
Abnormal Pressure Diagnosis
Provides a flowchart for diagnosing abnormal pressure conditions.
Pressure Transducer (PT) Testing
Details how to check and test the pressure transducer.
Electronic Expansion Valve (EEV) Diagnosis
Explains how to diagnose and test the electronic expansion valve.
Temperature Sensor Testing
Guides on checking and testing various temperature sensors.
High Pressure Switch (HPS) Testing
Details how to test the high-pressure switch.
Outdoor Fan Motor Diagnosis
Provides steps for diagnosing and testing the outdoor fan motor.
Indoor Blower Motor Troubleshooting
Guides on troubleshooting and testing the indoor blower motor.
Compressor Check and Test
Details how to check and test the compressor.
System Charge Check and Adjustment
Explains how to check and adjust system refrigerant charge.
Outdoor Board Fuse Check
Guides on checking and replacing the outdoor board fuse.
Indoor Board Fuse Check
Details how to check and replace indoor board fuses.
Appendix
Outdoor Unit Control Board Diagram
Provides a diagram and explanation of the outdoor unit control board.
Indoor Unit Control Board Diagram
Provides a diagram and explanation of the indoor unit control board.
Wiring Diagram
Outdoor Board Component Check
Product Information Notice
Technical Instructions E-Box Replacement Bosch IDS BOVA
Key to Symbols and Safety Instructions
Explains warning symbols and keywords used in this document.
Components Included in E-Box Kit
Lists the components included in the E-Box replacement kit.
E-Box Replacement Instructions
Provides step-by-step instructions for replacing the E-Box.
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