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Heat Pump
BVA-24WN1-M20
Service manual
Bosch BVA-24WN1-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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1
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
BOVA20
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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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