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Greenstar ZBR 21-3 A Series
Bosch Greenstar ZBR 21-3 A Series Manuals
Manuals and User Guides for Bosch Greenstar ZBR 21-3 A Series. We have
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Bosch Greenstar ZBR 21-3 A Series manual available for free PDF download: Installation And Service Instructions For Contractors
Bosch Greenstar ZBR 21-3 A Series Installation And Service Instructions For Contractors (80 pages)
Residential Gas Condensing Boiler
Brand:
Bosch
| Category:
Boiler
| Size: 9.48 MB
Table of Contents
Table of Contents
2
Contents
3
1 Explanation of Symbols and Safety Instructions
4
Explanation of Symbols
4
General Safety Instructions
4
2 Scope of Delivery
6
Zbr
6
Zwb
7
Heating and DHW Generation
7
3 Product Description
8
Proper Use
8
Overview of Boiler Types
8
Rating Plate
8
Appliance Description
8
Accessories
8
Product Dimensions and Minimum Clearances
9
Appliance Layout Heating Boiler ZBR
10
Appliance Layout ZWB
12
Electrical Wiring ZBR
14
Electrical Wiring ZWB
16
Technical Data ZBR
18
Technical Data ZWB
21
Condensate Composition
23
4 Regulations
23
Compliance with Standards and Regulations
23
Operating Limits of the Boiler
23
Additional Regulations for Installations in the Commonwealth of Massachusetts
24
5 Examples of Installations
25
Multiple Zones Using Zone Valves with DHW
25
Multiple Zones Using Circulators
27
6 Notes on Installation and Operation
29
Important Notes
29
Other Important Information
30
Water Supply Pressure
30
Comparing the Size of the Integrated Expansion Vessel
31
Selecting an External Expansion Vessel (ZBR
31
Selecting the Installation Location
31
Pre-Installing Pipes
32
Mounting the Appliance
33
Installing the Low Water Cut off (LWCO)
34
Connecting Flue Gas Accessories
35
Installation of the Exhaust and Air Intake System
36
Examples of Approved Horizontal and Vertical Venting Installation
40
Vent and Combustion Air Pipe Lengths
42
Testing Gas and Water Connections for Leaks
43
7 Electrical Connection
44
General Notes
44
Low Voltage Electrical Connections in the Heatronic Boiler Control
44
Open the Heatronic Boiler Control
44
Connecting the BUS-System
44
Connecting the Outdoor Temperature Sensor
45
Connecting the DHW Tank Temperature Sensor (Only ZBR
45
Connecting Additional Accessories
45
Electrical Connections in the Junction Box (120 VAC)
47
Mounting Rails for Junction Box
47
Connecting an External Heating Zone Pump or DHW Recirculation Pump
47
DHW Tank Loading Pump or 3-Way Valve with Spring Return (Only ZBR
48
Connecting Mains Power Supply
48
Connecting the LWCO Device
49
8 Commissioning
50
Before Operating the Appliance
51
Switching the Appliance ON/OFF
51
Switch on Heat
51
Programming the Bosch Room Controller
52
After Commissioning
52
Zbr
52
Tank: Setting the DHW Temperature
52
Zwb
53
Setting the DHW Temperature
53
Setting Manual Summer Mode
53
Setting Frost Protection
53
Activating the Key Pad Lock
54
9 Zbr
54
10 Boiler Circulator
54
Pump Anti-Seize Protection
54
Changing the Pump Curve of the Boiler Pump
54
11 Heatronic Boiler Control Settings
55
Guideline to Service Functions
55
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)
56
Description of the Service Functions
56
First Service Level
56
11.3.2 Second Service Level
60
12 Gas Adjustment
62
Converting to a Different Gas Type
62
Installation Location Higher than 2,000 Feet (610 M) above Sea Level
62
Checking and Setting the Gas-Air Ratio (CO2 or O2), if Required
62
Dynamic Gas Pressure Test Port
64
13 Flue Gas Test
64
Emissions Test Button
64
Measuring CO Content of Flue Gas
64
14 Environmental Protection and Disposal
65
15 Inspection and Maintenance
65
Description of Various Steps
66
Calling up the Latest Fault (Service Function 6.A)
66
Fresh Water Filter (Only Combi Boiler ZWB
66
Plate Type Heat Exchanger (Only Combi Boiler ZWB
66
15.1.4 Checking Electrodes
67
15.1.5 Burner Servicing
67
15.1.6 Heat Exchanger Block Inspection and Cleaning
68
15.1.7 Cleaning Condensate Trap
69
15.1.8 Checking the Mixer Diaphragm
69
15.1.9 Checking the Expansion Vessel
70
15.1.10 Setting the Boiler Water Pressure
70
15.1.11 Testing System Water Quality
70
15.1.12 Checking the Electrical Wiring
70
Maintenance and Inspection Checklist
71
16 Readings on the Display
72
Faults
73
Troubleshooting
73
Faults that Are Shown on the Display
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
Supply Temperature Sensor, External Supply Temperature Sensor, DHW Tank Temperature Sensor, DHW Temperature Sensor
77
Replacement Code Plug
77
18 Commissioning Log for the Appliance
78
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