User Manuals: Bosch ZBR 21-3 A NG Gas Condensing Boiler

Manuals and User Guides for Bosch ZBR 21-3 A NG Gas Condensing Boiler. We have 1 Bosch ZBR 21-3 A NG Gas Condensing Boiler manual available for free PDF download: Installation And Service Instructions For Contractors

Bosch ZBR 21-3 A NG Installation And Service Instructions For Contractors

Bosch ZBR 21-3 A NG Installation And Service Instructions For Contractors (80 pages)

Residential Gas Condensing Boiler

Brand: Bosch | Category: Boiler | Size: 9.78 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
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
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
7 Electrical Connection

44
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
12 Gas Adjustment

62
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
16 Readings on the Display

72
17 Faults

73
18 Commissioning Log for the Appliance

78

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