Bosch Pro Tankless GWH-450-ES-L Manuals

Table of Contents

• • 2

    Table of Contents

• 4

  2 Appliance Details

• 4

  1Warning

  • 5

    Unpacking the GWH-450-ES Heater
  • 6

    General Rules to Follow for Safe Operation
  • 7

    Dimensions and Minimum Installation Clearances
  • 8

    Applications

• 9

  3 Installation Instructions

  • 10

    Combustion Air Requirements
  • 11

    Venting
  • 14

    Venting Options
  • 16

    Gas Piping & Connections
  • 18

    Measuring Gas Pressure
  • 19

    Water Connections

• 20

  4 Operating Instructions

  • 21

    Power
  • 22

    Electrical Diagram

• 23

  5 Maintenance and Service

• 24

  6 Troubleshooting

• 26

  7 GWH-450-ES Functional Scheme

• 27

  8 Interior Components Diagram and Parts List

  • 28

    Components Diagram
  • 29

    Parts List

• 30

  9 Protecting the Environment

• 31

  10 Fifteen Year Limited Warranty