6 720 680 223
2
Index
Index
1
Warning
3
2
Appliance details
4
2.1
Features
4
2.2
Specifications (Technical data)
5
2.3
Unpacking the heater
6
2.4
General rules to follow for safe operation
7
2.5
Dimensions and Minimum
installation clearances
8
3
Installation instructions
9
3.1
Tools required for installation
9
3.2
Introduction
9
3.3
Venting
9
3.4
Combustion air requirements
20
3.5
Proper location for installing your heater
21
3.6
Heater placement and clearances
21
3.7
Mounting installation
21
3.8
Gas piping & connections
22
3.9
Water connections
25
3.10 Water quality
25
3.11 Domestic hot water recirculation
26
3.12 Measuring gas pressure
26
4
Electrical connections
28
4.1
Electrical power supply
28
4.2
Position of the fuses in control unit
28
5
Operation instructions
29
5.1
LCD Display functions
29
5.2
For your safety read before operating
your water heater
30
5.3
Power
30
5.4
Temperature selection
30
5.5
Use of optional remote control accessory
(part no. TSTAT2)
31
5.6
Operation
31
5.7
Reset button
31
5.8
Program button
31
5.9
Locked condition
31
6
Maintenance and service
32
6.1
Annual maintenance
32
6.2
Winterizing for seasonal use
32
6.3
Mineral scale build-up
33
6.4
Adjusting CO2 (carbon dioxide)
33
6.5
Program values
36
6.6
Control board diagnostics
37
7
Troubleshooting
38
7.1
Introduction
38
7.2
Burner do not ignite when hot water
is turned ON
38
7.3
Water is too hot
38
7.4
Water is not hot enough
38
7.5
Low water flow/pressure
39
7.6
Hot water temperature fluctuates at tap
39
7.7
Noisy burner/heater during operation
39
8
Problem solving
41
8.1
Error code diagnostics
41
9
Electrical diagram
45
10
Sensor resistance charts
46
11
Evolution 500 Functional scheme
48
12
Interior components diagram
and parts list
49
12.1 Interior components
49
12.2 Components diagram
51
13
Protecting the environment
57
14
Limited Warranty
58
