Bosch C1210ESC Manuals

• 2

  Table of Contents

3

1 Key to Symbols and Safety Instructions

• 3

  Key to Symbols
• 3

  Safety Instructions

6

2 FCC Rules

6

3 Appliance Details

• 6

  Features
• 7

  Specifications (Technical Data)
• 8

  Unpacking the Heater
• 9

  General Rules to Follow for Safe Operation
• 10

  Dimensions and Minimum Installation Clearances

11

4 Installation Instructions

• 11

  Specialized Tools
• 11

  Introduction
• 11

  Venting
• 23

  Combustion Air Requirements
• 23

  Proper Location for Installing Your Heater
• 23

  Heater Placement and Clearances
• 23

  Mounting Installation
• 24

  Gas Piping & Connections
• 27

  Water Connections
• 27

  Water Quality
• 28

  Filling the Condensate Trap
• 29

  Domestic Hot Water Recirculation
• 29

  Space Heating Applications
• 31

  Measuring Gas Pressure

31

5 Electrical Connections

• 31

  Electrical Power Supply
• 32

  Position of the Fuses in Control Unit

32

6 Operation Instructions

• 32

  Description LCD Display
• 33

  For Your Safety Read before Operating Your Water Heater
• 33

  Power
• 33

  Temperature Selection
• 34

  Use of Optional Remote Control Accessory (Part No. TSTAT2)
• 34

  Operation
• 34

  Reset Button
• 35

  Program Button
• 35

  Locked Condition

35

7 Maintenance and Service

• 35

  Annual Maintenance
• 36

  Winterizing for Seasonal Use
• 36

  Mineral Scale Build-Up
• 36

  Condensing Heat Exchanger Unit
• 37

  Adjusting CO2
• 38

  Program Values
• 39

  Control Board Diagnostics

40

8 Troubleshooting

• 40

  Introduction
• 40

  Burner Does Not Ignite When Hot Water Is Turned ON
• 41

  Water Is Too Hot
• 41

  Water Is Not Hot Enough
• 41

  Low Water Flow/Pressure
• 41

  Hot Water Temperature Fluctuates at Tap
• 42

  Noisy Burner/Heater During Operation

43

9 Problem Solving

• 43

  Error Code Diagnostics

47

10 Electrical Diagram

48

11 Sensor Resistance Charts

50

12 Functional Scheme

51

13 Interior Components Diagram and Parts List

• 51

  Interior Components
• 53

  Components Diagram

60

14 Protecting the Environment

61

15 Limited Warranty for Bosch Therm and Greentherm Tankless Water Heaters |

• 61

  Limited Warranty for C 1210 ES Residential Model

62

16 Limited Warranty for Bosch Therm 1210 Esc Tankless Water Heaters

• 62

  Limited Warranty for C 1210 ESC Commercial Model

63

17 Installer Checklist to Be Completed By Installer Upon Installation

• 3

  Table of Contents

4

1 Introduction

4

2 Bosch THERM Model Certifi Cations

5

3 Tankless Water Heater Accessories

6

4 Water Quality

7

5 Pump Sizing

• 7

  Pressure Drop Curves
• 8

  Domestic Hot Water Circulation
• 8

  Tank Loading

9

6 Water Heater Sizing & Specifi Cations

• 9

  Sizing Tankless Water Heaters
• 11

  Bosch Tankless Water Heater Specifi Cations

13

7 Outdoor Installation

14

8 Domestic Water Heating Applications

• 15

  Low Volume Applications
• 16

  Whole House Applications

20

9 High Volume Potable Water Heating

• 20

  Cascading Unit Applications
• 23

  Parallel Unit Applications

24

10 Residential Solar Applications

• 24

  Tankloading
• 25

  Booster Applications

27

11 Commercial Solar Applications

28

12 Commercial Water Heating Applications

• 28

  Commercial Kitchen Applications
• 30

  Basic Tank Loading with Domestic Recirculation
• 31

  Advanced Tank Loading Commercial Hot Water System