Bosch CL Series User Manual

Table of Contents
1 Document Conventions................................................4
1.1 Key to Symbols .................................................... 4
1.2 General Safety Instructions .................................... 4
1.3 Refrige
rant Safety Warnings................................... 5
2 Model Nomenclature....................................................7
3 General Description.....................................................8
3.1 Operating Limits................................................... 9
3.2 Approved Supplementary Heaters ........................ 10
4 Inspecting and Storing the Equipment.........................11
4.1 Moving and Storage ............................................ 11
4.2 Initial Inspection................................................. 11
4.3 Inspecti
on and Unpacking Prior to Installation......... 11
5 Unit Installation.........................................................12
5.1 Location Selection.............................................. 12
5.2 Protecting the Unit During Construction................. 13
5.3 Return a
nd Supply Air Duct Flanges Preparation...... 13
5.4 Mounting
Vertical (VT) Units................................. 13
5.5 Horizon
tal (HZ) Units .......................................... 13
5.6 Condens
ate Drain............................................... 16
5.7 Duct Syst
em ...................................................... 17
5.8 Piping .
.............................................................. 17
5.9 Electrical
—Power Supply Wiring............................ 19
5.10 Electrica
l—Low-Voltage Wiring.............................. 20
5.11 ECM Int
erface Board ........................................... 23
6 Specific Application Considerations............................24
6.1 Well Water Systems ............................................ 24
6.2 Open Well Water Systems.................................... 24
6.3 Cooling
Tower/Boiler Systems.............................. 25
6.4 Geother
mal Closed-Loop Systems ........................ 26
7 Water-Quality Considerations ....................................27
8 Post-Installation System Checkout .............................29
9 Pre-Start-Up..............................................................29
9.1 Air Coil.............................................................. 29
9.2 Checking Scroll Compressor Rotation.................... 29
10 Start-up ....................................................................30
10.1 Unit Start Up Cooling Mode .................................. 30
10.2 Unit Start Up Heating Mode.................................. 30
11 Commissioning..........................................................30
12 Safety Devices and the UPM Controller Overview ........31
12.1 UPM Default Settings and DIP Switch Positions....... 33
12.2 UPM Board Features ........................................... 33
12.3 UPM Se
quence of Operation ................................ 35
13 Options.....................................................................36
13.1 Unit Mounted Non-Fused Disconnect Switch .......... 36
13.2 Internal Two-Way Water Valve .............................. 36
13.3 Economiz
er ....................................................... 36
13.4 Hot Ga
s Reheat .................................................. 37
13.5 Boiler
less Control ............................................... 37
13.6 Option
Card (included with Economizer, Hot Gas Reheat
and/or Boi
lerless control options)...........
.............. 38
13.7 Refrigerant Leak Detection System Option ............. 39
14 Fan Motor Options..................................................... 39
14.1 Permanent Split Capacitor Motors (PSC) ............... 39
14.2 Constant Torque Motors (ECM) ............................ 42
14.3 Consta
nt Airflow Motors (ECM)............................. 47
15 Maintenance............................................................. 50
15.1 Filter Changes.................................................... 50
15.2 Annual Checkup .................................................50
15.3 Annual
Condensate Drain Cleaning........................ 50
16 Handling Periodic Lockouts........................................ 50
17 Servicing and Repair Information ............................... 50
17.1 Personal Protective Equipment............................. 50
17.2 Confined Space Work.......................................... 50
17.3 Contro
lled Work Procedure.................................. 50
17.4 Safety
Checks ....................................................50
17.5 Checks
to Electrical Devices................................. 51
17.6 Repair
s to Sealed Components ............................. 51
17.7 Repair
to Intrinsically-Safe Components................. 51
17.8 Check C
abling .................................................... 51
17.9 Detecti
on of Flammable Refrigerants..................... 51
17.10 Remov
al and Evacuation...................................... 52
17.11 Charg
ing Procedures........................................... 52
17.12 Recove
ry........................................................... 52
17.13 Servi
ce Access ................................................... 53
18 Decommissioning Information.................................... 54
18.1 Protecting the Environment.................................. 54
18.2 Decommissioning Procedure................................ 54
18.3 Labeli
ng ............................................................54
19 Troubleshooting........................................................ 55
19.1 Unit Troubleshooting........................................... 55
19.2 Option Card Troubleshooting ............................... 61
20 Specification Tables .................................................. 62
20.1 Operating Temperatures and Pressures ................. 62
20.2 Water-Side Pressure Drop Table ........................... 68
20.3 Compre
ssor Characteristics................................. 69
20.4 Corner
Weights (Horizontal Cabinets Only)............. 70
20.5 Model
24 Thermistor (Freeze Sensor) Test Values... 71
21 Wiring Diagrams ....................................................... 72
21.1 Single-Stage, Single-Phase, Standard Unit with
Permanent Split Capacitor (PSC) Motor...........
...... 72
21.2 Single-Stage, Single-Phase, Standard Unit with
Constant T
orque (CT) Motor...........
...................... 73
21.3 Single-Stage, Single-Phase, Standard Unit with
Constant A
irflow (CA) Motor ...........
..................... 74
21.4 Single-Stage, Single-Phase Unit with Optional
Components
and PSC Motor ...........
..................... 75
21.5 Single-Stage, Single-Phase Unit with Optional
Components
and CT Motor...........
........................ 76
21.6 Single-Stage, Single-Phase Unit with Optional
Components
and CA Motor ...........
....................... 77
21.7 Single-Stage, Single-Phase Unit with CT Motor and
Electric Hea
t ...........
........................................... 78
21.8 Single-Stage, Single-Phase Unit with CA Motor and
Electric Hea
t ...........
........................................... 79
21.9 Single-Stage, Single-Phase Unit with Optional
Components
, CT Motor, and Electric Heat ...........
... 80
21.10 Single-Stage, Single-Phase Unit with Optional
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CL Series Heat Pumps — 8733838716 (2024/05)

Bosch CL Series Specifications

General

Brand	Bosch
Model	CL Series
Category	Heat Pump
Language	English