Bosch RF Series - Table of Contents

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RF Series Heat Pumps — 8733980022 (2024/12)
Table of Contents
Document Conventions .......................................................3
Key to Symbols............................................................ 3
General Safety Instructions .....
...................................... 3
Refrigerant Safety Warnings.....
..................................... 4
Model Nomenclature ...........................................................6
General Description ............................................................7
Operating Limits.......................................................... 8
Approved Supplementary Heaters.....
............................. 9
Inspecting and Storing the Equipment ................................10
Moving and Storage ................................................... 10
Initial Inspection.....
................................................... 10
Inspection and Unpacking Prior to Installation.....
........... 10
RF Unit Installation............................................................11
Location Selection ..................................................... 11
Minimum Conditioned Room Area .....
........................... 12
Protecting the Unit During Construction.....
................... 12
Return and Supply Air Duct Flanges Preparation.....
........ 12
Mounting Vertical (VT) Units.....
................................... 12
Horizontal (HZ) Units.....
............................................. 13
Condensate Drain.....
................................................. 16
Duct System .....
........................................................ 16
Piping ...................................................................... 17
Elec
trical—Power Supply Wiring.....
.............................. 18
Electrical—Low-Voltage Wiring .....
................................ 20
ECM Interface Board .....
............................................. 22
Specific Application Considerations ...................................23
Well Water Systems ................................................... 23
Open Well Water Systems .....
...................................... 23
Cooling Tower/Boiler Systems.....
................................ 24
Geothermal Closed-Loop Systems .....
.......................... 25
Water-Quality Considerations............................................26
Post-Installation System Checkout .....................................28
Pre-Start-Up .....................................................................28
Air Coil..................................................................... 28
Checking Scroll Compressor Rotation.....
...................... 28
Start-up............................................................................29
Unit Start Up Cooling Mode ......................................... 29
Unit Start Up Heating Mode.....
.................................... 29
Commissioning .................................................................29
Safety Devices and the UPM Controller Overview................30
UPM Default Settings and DIP Switch Positions .............. 32
UPM Board Features .....
............................................. 32
UPM Sequence of Operation.....
................................... 34
Options ............................................................................35
Refrigerant Leak Detection System............................... 35
Heat Recovery Package (HRP) .....
................................ 35
HRP Water Tank Preparation .....
.................................. 36
Water Tank Refill.....
................................................... 37
Initial Start-Up of a HRP System .....
.............................. 37
Fan Motor Options ............................................................ 37
Constant Torque Motors (ECM)....................................37
Constant Airflow Motors (ECM).....
...............................40
Maintenance .................................................................... 47
Filter Changes ...........................................................47
Annual Checkup.....
....................................................47
Annual Condensate Drain Cleaning .....
..........................47
Handling Periodic Lockouts ...............................................47
Servicing and Repair Information....................................... 47
Personal Protective Equipment ....................................47
Confined Space Work .....
............................................47
Controlled Work Procedure .....
....................................47
Safety Checks .....
......................................................47
Checks to Electrical Devices .....
...................................48
Repairs to Sealed Components .....
...............................48
Repair to Intrinsically-Safe Components.....
...................48
Check Cabling .....
......................................................48
Detection of Flammable Refrigerants .....
.......................48
Removal and Evacuation .....
........................................49
Charging Procedures .....
.............................................49
Recovery ..................................................................49
Servi
ce Access .....
.....................................................50
Decommissioning Information ........................................... 51
Protecting the Environment .........................................51
Decommissioning Procedure .....
..................................51
Labeling....................................................................51
Troubleshooting ............................................................... 52
Unit Troubleshooting ..................................................52
Specification Tables.......................................................... 58
Operating Temperatures and Pressures.........................58
Water-Side Pressure Drop Table .....
.............................64
Compressor Characteristics .....
...................................65
Corner Weights (Horizontal Cabinets Only).....
...............66
Model 24 Thermistor (Freeze Sensor) Test Values .....
.....67
Wiring Diagrams............................................................... 68
Single-Stage, Single-Phase, Standard Unit with Constant
Torque (CT) Motor .....
................................................68
Single-Stage, Single-Phase, Standard Unit with Constant
Airflow (CA) Motor .
....
................................................69
Two-Stage, Single-Phase, Standard Unit with CA Motor ...70
Dimensional Drawings....................................................... 71
Vertical (VT) Unit Dimensions ......................................71
Vertical (VT) Cabinet Options Dimensions.....
.................73
Horizontal (HZ) Unit Dimensions .....
.............................74
Horizontal (HZ) Cabinet Options Dimensions .....
............76
Counter Flow Unit Dimensions .....
................................78
Counter Flow Options Dimensions.....
...........................80
Service Clearance .....
.................................................81
Terminology ..................................................................... 82
Acronyms .................................................................82
Terms.......................................................................82
Check-Out Sheet............................................................... 83
Notes ............................................................................... 84