Table Of Contents - Bosch BOVA Series Installation Instructions Manual

Table of Contents

Table Of Contents3
Warnings4
Important Information4
Key To Symbols And Safety Instructions4
Unit Location Considerations6
Unit Dimensions6
Refrigerant Piping Limits6
Location Restrictions7
Cold Climate Considerations (Heat Pump Only)7
Unit Preparation8
Prepare The Unit For Installation8
Setting The Unit8
Pad Installation8
Refrigerant Line Considerations9
Refrigerant Line And Service Valve Connection Sizes9
Reuse Existing Refrigerant Lines9
Required Refrigerant Line Length9
Refrigerant Line Routing10
Precautions10
Isolation From Joist/Rafter10
Isolation In Wall Spaces10
Isolation Through Wall11
Refrigerant Line Brazing11
Braze The Refrigerant Lines11
Refrigerant Line Leak Check13
Check For Leaks13
Evacuate The Refrigerant Lines And Indoor Coil13
Evacuation13
Service Valves14
Open The Service Valves14
Electrical - Low Voltage15
Low Voltage Maximum Wire Length15
Low Voltage Hook-Up Diagrams15
Air Handler Hook-Up Diagram15
Electrical - High Voltage16
High Voltage Power Supply16
High Voltage Disconnect Switch16
High Voltage Ground16
Start Up17
System Start Up17
Charging: Weigh-In Method18
Sealed-System Repairs18
New Installations18
14 System Charge Adjustment18
R-410A Refrigerant Chart - Final Superheat19
R-410A Refrigerant Chart- Final Subcooling19
System Operation And Troubleshooting21
Control Logic Description21
Defrost Description21
Sensors (Thermistors/Pressure Transducer)21
Compressor Crankcase Heater Description22
Protection Functions22
Reversing Valve Operation22
Manual Defrost22
Fault Code Table23
Parameter Point Check Table24
Control Board Overviews25
Main Control Board26
Drive Board27
Error Code Troubleshooting28
P1 (High Pressure Switch(Hps)Protection)28
P5 ( Condenser Coil Temperature(T3) Protection In Cooling)28
Hb ( High Pressure(Pt) Protection In Heating)29
P0 (High Module Radiator Temperature (Tf)Protection)29
P3 ( Compressor Over Current Protection)29
P4 ( Compressor Discharge Sensor(T5) Is Seated Fault)30
E4 ( Temperature Sensor Fault(T3, T4, T5, Tf))30
Ph ( Low Discharge Superheat Protection)30
H8 ( Pressure Transducer(Pt) Fault)30
F1 ( High Pressure Switch(Hps) Fault)31
E7 Compressor Discharge Sensor(T5) Is Seated Fault)31
E6 Dc Fan Motor Fault)31
C3 Condenser Coil Sensor(T3) Is Seated Fault In Cooling)31
E9 (Eeprom Fault)32
E5 ( High/Low Voltage Protection)32
H0 ( Communication Fault In Main Control Chip)32
P6/L0-L9 ( Ipm Module Protection)33
At L ( Ambient Temperature Limited)33
Wiring Diagrams37
For Bova 3637
For Bova 6038
Spare Parts39