Bosch Greenstar FS KBR21-3 Series Manuals

Manuals and User Guides for Bosch Greenstar FS KBR21-3 Series. We have 1 Bosch Greenstar FS KBR21-3 Series manual available for free PDF download: Installation And Service Instructions Manual

Bosch Greenstar FS KBR21-3 Series Installation And Service Instructions Manual (100 pages)

Residential Gas Condensing Boiler

Brand: Bosch | Category: Boiler | Size: 9 MB

Table of Contents
2
Key to Symbols and Safety Instructions
3
Key to Symbols
3
General Safety Instructions
4
Scope of Delivery
5
KBR - Residential Boiler for Space Heating and Loading of Indirect Fired DHW Tanks
5
KWB - Residential Combi Boiler for Space Heating and DHW Generation
5
Information about the Appliance
6
Proper Use
6
Overview of Boiler Types
6
Rating Plate
6
Appliance Description
6
Accessories
6
Product Dimensions and Minimum Clearances
7
Appliance Layout Heating Boiler KBR
8
Appliance Layout Combi Boiler KWB
10
Air Vent
11
Electrical Wiring Heating Boiler KBR
12
Electrical Wiring Combi Boiler KWB
14
Technical Data Heating Boiler KBR 16-3
16
Technical Data Heating Boiler KBR 21 -3
16
Technical Data Heating Boiler KBR 28-3
17
Technical Data Heating Boiler KBR 35-3
17
Technical Data Heating Boiler KBR 42-3
18
Technical Data Combi Boiler KWB 28-3
21
Technical Data Combi Boiler KWB 35 - 3
21
Technical Data Combi Boiler KWB 42 - 3
22
Condensate Composition
24
Regulations
24
Compliance with Standards and Regulations
24
Operating Limits of the Boiler
24
Additional Regulations for Installation in Massachusetts
25
Common Applications of KBR Boilers
26
Multiple Zones Using Zone Valves with DHW
26
To Utilize the LLH
26
Wiring - Multi Zone with Zone Valves and LWCO
27
Multiple Zones Using Circulators with DHW
28
To Utilize the LLH
28
Wiring
29
Installation
30
Installation and Operation
30
Notes on Installation and Operation
30
Other Important Information
31
Comparing the Size of the Integrated Expansion Vessel (KWB-3A Boiler Only)
32
Kbr
32
Expansion Vessel
32
Selecting the Installation Location
32
Low Loss Header (LLH) Utilization
33
To Utilize the LLH
33
Locating the Appliance
34
Positioning the Appliance
34
Installing a Low Water Cut off (LWCO)
35
Connecting Flue Gas Accessories
36
Installation of the Exhaust and Air Intake System
37
Direct Vent Installations (Sealed Combustion)
37
Approved Examples of Horizontal and Vertical Venting Installation
41
Vent and Combustion Air Pipe Lengths
43
Testing Gas and Water Connections for Leaks
44
Making the Electrical Connections
45
General Notes
45
Electrical Connections in the Junction Boxes
45
Access to Junction Boxes
45
High Voltage Junction Box
45
Connecting an External Heating Zone Pump or DHW Recirculation Pump
46
DHW Tank Loading Pump or 3-Way Valve with Spring Return (Only Heating Boiler KBR
46
Connecting Mains Power Supply
47
Low Voltage Junction Box
47
DHW Tank Temperature Sensor Connection
48
Connecting the LWCO Device
48
Commissioning
49
DHW Temperature Control
49
Before Operating the Appliance
49
Switching the Appliance ON/OFF
49
Setting up Space Heating
50
Programming the FW 200 Heating Control Unit (Optional Accessory)
50
FW 200 Outdoor Reset Heating Control Quick Start (Optional Accessory)
51
Setting Date and Time
51
Setting Constant Heating (no Night Set Back)
51
Setting Type of Heating System
51
Adjusting Warm Weather Shut down (WWSD)
52
Resetting All Settings (for Installers Only)
52
After Commissioning
52
Kbr
52
Setting the DHW Temperature
53
Kwb
53
Setting Manual Summer Mode
53
Setting Frost Protection
53
Activating the Key Pad Lock
53
Kbr
54
Boiler Circulator
55
Pump Anti-Seize Protection
55
Changing the Pump Curve of the Boiler Pump
55
Heatronic Boiler Control Settings
56
Guideline to Service Functions
56
Overview of the Service Functions
56
First Service Level (Press and Hold the Service Button until It Lights Up)
56
Second Service Level (at First Service Level, Service Button Lights Up, Press ECO Button and Key Pad Lock Button Simultaneously until 8.A Appears)
57
Description of the Service Functions
57
11.3.1 First Service Level
57
Second Service Level
57
Gas Type Conversion
62
Converting to a Different Gas Type
62
Installation Location Higher than 2,000 Feet (610 M) above Sea Level
62
Setting the Gas-Air Ratio (CO2 or O2)
63
Dynamic Gas Pressure Test
64
Flue Gas Test
64
Emissions Test Button
64
Measuring CO Content of Flue Gas
64
Environmental Responsibility/Disposal
65
Inspection and Maintenance
65
Description of Various Steps
65
Calling up the Latest Fault (Service Function 6.A)
65
Fresh Water Filter (Only Combi Boiler KWB
65
Plate Type Heat Exchanger (Only Combi Boiler KWB
66
15.1.4 Checking the Electrodes
67
15.1.5 Burner Servicing
67
15.1.6 Heat Exchanger Block Inspection and Cleaning
68
15.1.7 Condensate Trap Cleaning
69
15.1.8 Checking the Mixer Diaphragm
70
15.1.9 Expansion Vessel
70
10Setting the Boiler Water Pressure
70
11Testing System Water Quality
70
12Inspecting Electrical Wiring
70
Checklist for Annual Inspection and Maintenance
71
Readings on the Display
72
Faults
73
Troubleshooting
73
Faults that Are Shown on the Display
74
Display Description
74
Faults that Are Not Shown on the Display
76
Check Sensor Values
77
17.4.1 Outdoor Temperature Sensor
77
17.4.2 Additional Supply Temperature Limiter
77
17.4.3 Supply Temperature Sensor, External Supply Temperature
77
Sensor, DHW Tank Temperature Sensor, DHW Temperature
77
Sensor
77
Replacement Code Plug
77
Commissioning Log for the Appliance
78
Spare Parts
80

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