Bosch PROTANKLESS 450 ESR Manuals

Manuals and User Guides for Bosch PROTANKLESS 450 ESR. We have 1 Bosch PROTANKLESS 450 ESR manual available for free PDF download: User Manual

Bosch PROTANKLESS 450 ESR User Manual

Bosch PROTANKLESS 450 ESR User Manual (40 pages)

Temperature Modulated with Electronic Ignition Suitable for heating and recirculating potable water

Brand: Bosch | Category: Water Heater | Size: 4.31 MB

Table of Contents

Table of Contents
2
2 Appliance Details

4
3 Installation Instructions

10
- Introduction
  10
- Proper Location for Installing Your Heater
  10
- Heater Placement and Clearances
  10
- Mounting Installation
  10
- Combustion Air Requirements
  11
- Venting
  13
- Vent Material and Specifications
  13
- Vent Connections and Air Inlet Restrictors
  14
- Condensate Drain Requirements
  18
- Room Sealed Installation (Twin Pipe)
  18
- Vertical Terminations
  19
- Horizontal Terminations
  19
- Exhaust Vent Configuration Examples
  22
- Gas Piping & Connections
  23
- Measuring Gas Pressure
  25
- Water Connections
  26
- Electrical Connections
  26
4 Operating Instructions

27
- Initial Filling Instructions
  27
- For Your Safety Read before Operating Your Water Heater
  27
- Startup Instructions
  27
- Power
  28
- Recirculating Water Temperature
  28
- Temperature and Hot Water Flow
  28
- Freeze Protection
  28
- Electrical Diagram
  29
5 Maintenance and Service

30
- Service Mode
  30
6 Troubleshooting

32
7 GWH-345/450-ESR Functional Scheme

34
8 Interior Components Diagram and Parts List

35
- Components Diagram
  36
- Parts List
  37
9 Protecting the Environment

38
10 Ten Year Limited Warranty

39

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