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A.O. Smith
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Water Heater
A.O. Smith
SGE service manual
1
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110
110
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110 pages, 4.2 Mb
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Installation
User and
Service Manual
Installation
User and
Service Manual
Contents
Main
Page
Instruction manual SGE 3
Read this manual carefully
Trademarks
Liability
More information
Page
Instruction manual SGE 5
Table of contents
1 Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - 9
2 Working principle of the appliance- - - - - - - - - - - - - - - 13
3 Installation - - - - - - - - - - - - - - - - - - - - - - - - - - - 19
6 Draining - - - - - - - - - - - - - - - - - - - - - - - - - - - - 53
8 Status of the appliance - - - - - - - - - - - - - - - - - - - - - 59
9 Starting and running - - - - - - - - - - - - - - - - - - - - - - 61
10 Shutting down - - - - - - - - - - - - - - - - - - - - - - - - - 63
11 Main menu - - - - - - - - - - - - - - - - - - - - - - - - - - - 65
12 Service program - - - - - - - - - - - - - - - - - - - - - - - - 73
Page
Page
Instruction manual SGE 9
1 Introduction
1.1 About the appliance
1.2 What to do if you smell gas
1.3 Regulations
10 Instruction manual SGE
1gis
1.4 Target groups
1.5 Maintenance
1.6 Forms of notation
Instruction manual SGE 11
1.7 Overview of this document
Page
Instruction manual SGE 13
2 Working principle of the appliance
2.1 Introduction
2.2 General working principle of the appliance
14 Instruction manual SGE
2.3 The appliance's heating cycle
Instruction manual SGE 15
2.4 Protection for the appliance 2.4.1 Introduction
16 Instruction manual SGE
2.4.2 Appliance water temperature protection
2.4.3 Gas valve
2.4.4 Fan
2.4.5 Pressure switch
Page
18 Instruction manual SGE
2.6.2 Fluid temperature
2.7 Safety of the solar
2.7.1 Expansion vessel
2.7.2 Expansion valve
3 Installation
3.1 Introduction
3.2 Packaging
3.3 Environmental conditions
20 Instruction manual SGE
3.3.1 Air humidity and ambient temperature
3.3.2 Appliance maximum floor load
3.3.3 Water composition
Instruction manual SGE 21
3.3.4 Working clearances
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24 Instruction manual SGE
3.4.2 General and electrical specifications
3.4.3 Gas data
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Instruction manual SGE 27
3.6 Water connections, Unvented
3.6.1 Cold water side
3.6.2 Hot water side
3.6.3 Circulation pipe
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Instruction manual SGE 29
3.8 Gas connection
3.9 Air supply and flue 3.9.1 Introduction
3.9.2 Requirements for flue gas discharge materials
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Instruction manual SGE 31
3.9.3 Concentric connections
Page
Instruction manual SGE 33
3.9.4 Parallel connections
34 Instruction manual SGE
Practical example of parallel chimney flue
Instruction manual SGE 35
3.10 Solar heating system
3.11 Electrical connection
3.11.1 Introduction
36 Instruction manual SGE
3.11.2 Preparation
Instruction manual SGE 37
3.11.3 Connecting the mains voltage
3.11.4 Isolating transformer
3.11.5 Connecting continuous pump
38 Instruction manual SGE
3.11.6 Connecting a program-controlled pump
3.11.7 Connecting an extra ON mode switch ("Tank ON")
3.11.8 Connecting an extra error signal ('Alarm OUT' )
3.11.9 Connecting communication cable to solar heating system
Instruction manual SGE 39
3.12.1 Preparation
3.12.2 Connecting the mains power
3.12.3 Connecting pump station - modulating pump
3.12.4 Connecting solar collector
40 Instruction manual SGE
3.12.5 Connecting tank sensor
3.12.6 Connecting communication cable
3.12.7 Connecting extra head pump
3.12.8 Connecting Q/T sensor
Instruction manual SGE 41
3.13 Checking the supply pressure and burner pressure
42 Instruction manual SGE
3.13.1 Preparation
3.13.2 Procedure to check pressures
Instruction manual SGE 43
3.13.3 Adjusting the pressure
Page
4 Conversion to a different gas category
4is
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50 Instruction manual SGE
5gis
5.1 Filling the appliance 5.1.1 Filling unvented installations
5.1.2 Filling vented installations
Instruction manual SGE 51
5.2 Filling solar heating system 5.2.1 Filling solar heating system with glycol
5gis
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54 Instruction manual SGE
6gis
6.1 Draining unvented installations
Instruction manual SGE 55
6.2 Draining vented installations
6.3 Draining solar
6.3.1 Draining glycol-filled system
6gis
Instruction manual SGE 57
7 The control panel
7.1 Introduction
7.2 Controls
7.3 Meaning of icons
7.4 Electronic controller ON/OFF switch
7gis
7.5 Navigation buttons
7.6 PC connection
Instruction manual SGE 59
8 Status of the appliance
8.2.4
8.2.3
8.2.2
8.2.1
8gis
8.3 Error conditions
8.4 Service condition
8.5 Collector temperature warning
8.6 Q/T Sensor warning
9 Starting and running
9.1 Introduction
9.2 Starting the appliance
9.3 The appliance's heating cycle
9gis
Instruction manual SGE 63
10 Shutting down
10.1 Introduction
10.2 Shut the appliance down for a brief period ("OFF mode")
10.3 Electrically isolating the appliance
10.4 Shutting the appliance down for a long period
Page
Instruction manual SGE 65
11 Main menu
11.1 Introduction
11.2 Notational convention for menu-related instructions
11.3 Switching on the "ON mode"
11.4 Setting the water temperature 11.4.1 Setting the water temperature via the SET POINT MENU
66 Instruction manual SGE
11.4.2 Setting water temperature during ON mode
11.5 Week program
11.6 Starting and stopping the week program
11.7 Changing the appliance's standard week program
Instruction manual SGE 67
11.7.1 Week program: setting the switch- on time
11.7.2 Week program: setting the switch- off time
11.7.3 Week program: setting the water temperature
68 Instruction manual SGE
11.7.4 Week program: setting the program- controlled pump
11.8 Adding times to a week program
Instruction manual SGE 69
11.9 Deleting times from a week program
11.10 Extra period
70 Instruction manual SGE
11.11 Programming an extra period
Instruction manual SGE 71
11.12 Se ttings
11.12.1 Setting menu language
11.12.2 Setting day and time
72 Instruction manual SGE
11.12.3 Displaying appliance specifications (SGE)
Instruction manual SGE 73
12 Service program
12.1 Introduction
12.2 Setting the hysteresis
12.3 Displaying the error history
12.4 Displaying the appliance history
12 is
12.5 Display the selected appliance
12.6 Switching the pump on or off
12.7 Setting the service interval
12.8 Setting legionella prevention
Instruction manual SGE 75
12.9 Solar heating system configuration
12.9.1 Setting the drain-back tank
12.9.2 Setting the heating fluid type in the solar heating system
12.9.3 Setting threshold temperature of pump in solar heating system
12 is
12.9.6 Setting the QT sensor yes/no
12.9.7 Reading the energy contribution of the solar heating system
12.10 Setting the central heating configuration
Instruction manual SGE 77
13 Troubleshooting
13.1 Introduction
Instruction manual SGE 78
13.2 Troubleshooting table for general errors
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Instruction manual SGE 81
13.3 Troubleshooting table for displayed errors
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Instruction manual SGE 90
13.4 Displayed warnings
Instruction manual SGE 91
14 Maintenance frequency
14.1 Introduction
14.2 Determining service interval
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Instruction manual SGE 93
s
15 Performing maintenance
15.1 Introduction
15.2 Preparation for maintenance
15 s
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s
15.3 Water-side maintenance 15.3.1 Introduction
15.3.2 Checking the anodes
15.3.3 Descaling and cleaning the tank
15 s
Instruction manual SGE 97
16 Warranty (certificate)
16.1 General warranty
16.2 Tank warranty
16.3 Collector warranty
16.4 Conditions for Installation and use
16 gis
16.5 Exclusions
16.6 Scope of the warranty
16.7 Claims
16.8 Obligations of A.O. Smith
17 Appendices
Appendices
100 Instruction manual SGE
17 is
17.2 Menu structure
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Instruction manual SGE 105
17.4.1 Solar system electrical diagram legend
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Instruction manual SGE 107
17.5 Week program card
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Instruction manual SGE 109
Index
A
B
C
D
0308 817 1.0 UK
Index
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