Table Of Contents - Bosch BOVB 18 Series Installation Instructions Manual

Installation Instructions

Table of Contents

1 Key to Symbols and Safety Instructions
1.1 Key to Symbols
1.2 Safety
2 Unit Location Considerations
2.1 Unit Dimensions
2.2 Refrigerant Piping Limits
2.3 Location Restrictions
3 Unit Preparation
3.1 Prepare the Unit for Installation
4 Setting the Unit
4.1 Pad Installation
5 Refrigerant Line Considerations
5.1 Refrigerant Line and Service Valve Connection Sizes
5.2 Required Refrigerant Line Length
5.3 Refrigerant Line Insulation
5.4 Reuse Existing Refrigerant Lines
6 Refrigerant Line Routing
6.1 Precautions
7 Refrigerant Line Brazing
7.1 Braze The Refrigerant Lines
8 Refrigerant Line Leak Check
8.1 Check For Leaks
9 Evacuation
9.1 Evacuate the Refrigerant Lines and Indoor Coil
10 Service Valves
10.1 Open the Service Valves
11 Electrical - Low Voltage
11.1 Low Voltage Maximum Wire Length
11.2 Low Voltage Hook-Up Diagrams
11.3 Thermostat Wiring Diagrams
Bosch Thermotechnology Corp. | 10.2020
4 12 Electrical - High Voltage
4
12.1 High Voltage Power Supply
4 12.2 High Voltage Disconnect Switch
12.3 High Voltage Ground
6
13 Start Up
6
6
13.1 System Start Up
7
14 System Charge Adjustment
8
14.1 Charging: Weigh-In Method
8
14.2 Subcooling Charging And Refrigerant Adjustment In Cooling
(Above 55°F Outdoor Temp.)
8
15 System Operation and Troubleshooting
8
15.1 Control Logic Description
9 15.2 Sensors (Thermistors/Pressure Transducer)
15.3 Pressure Equalizer Valve (PEV)
9
15.4 Defrost Description
9
9 15.5 Compressor Crankcase Heater Description
9 15.6 Reversing Valve Operation
15.7 Protection Functions
10
15.8 Fault Code Table
10
15.9 Parameter Point Check Table
15.10 Control Board Overviews
11
15.11 Error Code Troubleshooting
11
15.12 Temperature and Resistance Relationship Tables (for Sensors)
15.13 Temperature and Resistance Relationship Tables (for T5)
13
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16 Wiring Diagrams
16.1 BOVB36-18 (3 ton)
13
16.2 BOVB60-18 (5 ton)
13
17 Care and Maintenance
14
17.1 Cleaning Precautions
14
17.2 Maintenance - Pre-Season Inspection
15
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Data subject to change