Bosch CF Series - UPM Sequence of Operation

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Safety Devices and the UPM Controller Overview

12.3 UPM Sequence of Operation

Fig. 22 UPM Sequence of Operation Flowchart

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CF Series Heat Pumps — 8733846299 (2024/11)

Main Page

Table of Contents2
Document Conventions4
Key to Symbols4
General Safety Instructions4
Refrigerant Safety Warnings5
Model Nomenclature7
General Description8
Operating Limits9
Approved Supplementary Heaters10
Inspecting and Storing the Equipment11
Moving and Storage11
Initial Inspection11
Inspection and Unpacking Prior to Installation11
Unit Installation12
Location Selection12
Minimum Conditioned Room Area13
Protecting the Unit During Construction13
Return and Supply Air Duct Flanges Preparation13
Mounting Vertical (VT) Units13
Horizontal (HZ) Units14
Mounting Horizontal (HZ) Units15
Condensate Drain17
Duct System17
Piping18
Electrical-Power Supply Wiring19
Electrical-Low-Voltage Wiring21
Standard Construction22
Optional Components22
ECM Interface Board23
Specific Application Considerations24
Well Water Systems24
Open Well Water Systems24
Cooling Tower/Boiler Systems25
Geothermal Closed-Loop Systems26
Water-Quality Considerations27
Post-Installation System Checkout29
Pre-Start-Up29
Air Coil29
Checking Scroll Compressor Rotation29
Start-Up30
Unit Start up Cooling Mode30
Unit Start up Heating Mode30
Commissioning30
Safety Devices and the UPM Controller Overview31
UPM Default Settings and DIP Switch Positions33
Position Function33
UPM Board Features33
UPM Sequence of Operation35
Options36
Unit Mounted Non-Fused Disconnect Switch36
Internal Two-Way Water Valve36
Economizer36
Hot Gas Reheat37
Boilerless Control37
Option Card (Included with Economizer, Hot Gas Reheat And/Or Boilerless Control Options)38
Refrigerant Leak Detection System39
Electric Heat Option39
Hot Gas Bypass39
Pump Relay39
DPS Water Flow Proving Switch39
Heat Recovery Package (HRP)39
HRP Water Tank Preparation41
Water Tank Refill41
Initial Start-Up of a HRP System42
Fan Motor Options42
Constant Torque Motors (ECM)42
Motor Setting 0.10 0.20 0.30 0.40 0.5048
Constant Airflow Motors (ECM)49
Cf036 Pl50
Cf042 Pl50
Cf048 Pl51
Cf060 Pl51
Maintenance56
Filter Changes56
Annual Checkup56
Annual Condensate Drain Cleaning56
Handling Periodic Lockouts56
Servicing and Repair Information56
Personal Protective Equipment56
Confined Space Work56
Controlled Work Procedure56
Safety Checks56
Checks to Electrical Devices57
Repairs to Sealed Components57
Repair to Intrinsically-Safe Components57
Check Cabling57
Detection of Flammable Refrigerants57
Removal and Evacuation58
Charging Procedures58
Recovery58
Service Access59
Decommissioning Information60
Protecting the Environment60
Decommissioning Procedure60
Labeling60
Troubleshooting61
Unit Troubleshooting61
Option Card Troubleshooting67
Specification Tables68
Operating Temperatures and Pressures68
Water-Side Pressure Drop Table74
Compressor Characteristics75
Corner Weights (Horizontal Cabinets Only)76
Model 24 Thermistor (Freeze Sensor) Test Values77
Wiring Diagrams78
Two-Stage, Single-Phase, Standard Unit with Constant Torque (CT) Motor78
Two-Stage, Single-Phase, Standard Unit with Constant Airflow (CA) Motor79
Two-Stage, Single-Phase Unit with Optional Components and CT Motor80
Two-Stage, Single-Phase Unit with Optional Components and CA Motor81
Two-Stage, Single-Phase Unit with CA Motor and Electric Heat83
Two-Stage, Single-Phase Unit with Optional Components, CT Motor, and Electric Heat84
Two-Stage, Single-Phase Unit with Optional Components, CA Motor, and Electric Heat85
Two-Stage, Three-Phase, Standard Unit with CT Motor86
Two-Stage, Three-Phase, Standard Unit with CA Motor87
Two-Stage, Three-Phase Unit with Optional Components and CT Motor88
Two-Stage, Three-Phase Unit with Optional Components and CA Motor89
Dimensional Drawings90
Vertical (VT) Unit Dimensions90
Vertical (VT) Cabinet Options Dimensions92
Horizontal (HZ) Unit Dimensions94
Horizontal (HZ) Cabinet Options Dimensions96
Counter Flow Unit Dimensions98
Counter Flow Options Dimensions100
Service Clearance102
Terminology103
Acronyms103
Terms103
Check-Out Sheet104
Unit Nameplate104
Operating Conditions104
Notes105

Bosch CF Series - UPM Sequence of Operation

Table of Contents

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