Bosch Evolution 500 Instruction Manual page 2

Index
Index
1 Warning
2 Appliance details
2.1 Features
2.2 Specifications (Technical data)
2.3 Unpacking the heater
2.4 General rules to follow for safe operation
2.5 Dimensions and Minimum
installation clearances
3 Installation instructions
3.1 Tools required for installation
3.2 Introduction
3.3 Venting
3.4 Combustion air requirements
3.5 Proper location for installing your heater
3.6 Heater placement and clearances
3.7 Mounting installation
3.8 Gas piping & connections
3.9 Water connections
3.10 Water quality
3.11 Domestic hot water recirculation
3.12 Measuring gas pressure
4 Electrical connections
4.1 Electrical power supply
4.2 Position of the fuses in control unit
5 Operation instructions
5.1 LCD Display functions
5.2 For your safety read before operating
your water heater
5.3 Power
5.4 Temperature selection
5.5 Use of optional remote control accessory
(part no. TSTAT2)
5.6 Operation
5.7 Reset button
5.8 Program button
5.9 Locked condition
2
3 6 Maintenance and service
6.1 Annual maintenance
6.2 Winterizing for seasonal use
4
6.3 Mineral scale build-up
4
6.4 Adjusting CO2 (carbon dioxide)
5
6.5 Program values
6
6.6 Control board diagnostics
7
8 7 Troubleshooting
7.1 Introduction
7.2 Burner do not ignite when hot water
9
is turned ON
9
7.3 Water is too hot
9
7.4 Water is not hot enough
9
7.5 Low water flow/pressure
20
7.6 Hot water temperature fluctuates at tap
21
7.7 Noisy burner/heater during operation
21
21
22 8 Problem solving
25 8.1 Error code diagnostics
25
26
9 Electrical diagram
26
10 Sensor resistance charts
28
28
28
11 Evolution 500 Functional scheme
29
12 Interior components diagram
29
and parts list
12.1 Interior components
30
12.2 Components diagram
30
30
13 Protecting the environment
31
31
14 Limited Warranty
31
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