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Bosch
Water Heater
830 ES
Bosch 830 ES User Manual
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6 720 644 936 (2021/08) US
Installation and Operating Instructi
ons
INDOOR MODEL
830 ES
WARNING!
Improper installation, adjustment, altera
tion, service
or maintenance can cause
injury or property damage. Refe
r to this manual. For assistance or additional infor-
mation consult a qualifie
d installer, service agency or the gas supplier.
NOTICE
Upon completion of the installation, thes
e instructions should be handed
to the
user of the appliance
for future refer
ence.
830 ES - Natural Gas / 830 ES -
L
iquefied P
etr
oleum (LP) Gas
2
Table of Contents
Default Chapter
2
Table of Contents
2
1 Key to Symbols and Safety Instructions
3
Key to Symbols
3
Safety Instructions
3
2 FCC Rules
8
3 Appliance Details
9
Features
9
Specifications (Technical Data)
10
Unpacking the Heater
12
General Rules to Follow for Safe Operation
13
Dimensions and Minimum Installation
14
Clearances
14
4 Installation Instructions
15
Specialized Tools
15
Introduction
15
Venting
15
Combustion Air Requirements
34
Proper Location for Installing Your Heater
35
Heater Placement and Clearances
35
Hanging Appliance on the Wall
35
Mounting Installation for Manufactured
37
(Mobile) Homes
37
Gas Piping & Connections
37
4.9.1 Gas Line Sizing Tables for NATURAL GAS
39
4.9.2 Gas Line Sizing Tables for LP GAS
40
4.10 Water Connections
41
4.11 Water Quality
41
4.12 Domestic Hot Water Recirculation
42
4.13 Space Heating Applications
43
4.14 Measuring Gas Pressure
46
5 Electrical Connections
47
Electrical Power Supply
47
Position of the Fuses in Control Unit
47
6 Operation Instructions
48
Description LCD Display
48
For Your Safety Read before Operating Your Water Heater
49
Power
49
Temperature Selection
49
Use of Optional Remote Control Accessory
50
(Part No. TSTAT2)
50
Operation
50
Reset Button
51
Program Button
51
Locked Condition
51
7 Maintenance and Service
52
Annual Maintenance
52
Winterizing for Seasonal Use
52
Mineral Scale Build-Up
53
Adjusting CO2
53
Program Values
56
Control Board Diagnostics
57
8 Troubleshooting
58
Introduction
58
Burner Does Not Ignite When Hot Water Is Turned on
58
Water Is too Hot
58
Water Is Not Hot Enough
58
Low Water Flow/Pressure
59
Hot Water Temperature Fluctuates at Tap
59
Noisy Burner/Heater During Operation
59
9 Problem Solving
61
Error Code Diagnostics
61
10 Electrical Diagram
64
11 Sensor Resistance Charts
65
13 Interior Components Diagram and Parts List
68
14 Protecting the Environment
76
15 Installer Checklist to be Completed by Installer
76
Upon Installation
76
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Bosch 830 ES Specifications
General
Brand
Bosch
Model
830 ES
Category
Water Heater
Language
English
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