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A.O. Smith
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Household Appliance
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Water Heater
A.O. Smith
SGS - 100, SGS - 80
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110 pages, 3.9 Mb
Maintenance frequency
92
Instruction manual SGS
14
is
Contents
Main
Page
Instruction manual SGS 3
Read this manual carefully
Trademarks
Liability
More information
Page
Instruction manual SGS 5
Table of contents
1 Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - 9
2 Working principle of the appliance- - - - - - - - - - - - - - - 13
3 Installation - - - - - - - - - - - - - - - - - - - - - - - - - - - 19
6 Draining - - - - - - - - - - - - - - - - - - - - - - - - - - - - 51
8 Status of the appliance - - - - - - - - - - - - - - - - - - - - - 57
9 Starting and running - - - - - - - - - - - - - - - - - - - - - - 59
10 Shutting down - - - - - - - - - - - - - - - - - - - - - - - - - 61
11 Main menu - - - - - - - - - - - - - - - - - - - - - - - - - - - 63
12 Service program - - - - - - - - - - - - - - - - - - - - - - - - 71
Page
Page
Instruction manual SGS 9
1 Introduction
1.1 About the appliance
1.2 What to do if you smell gas
1.3 Regulations
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1gis
1.4 Target groups
1.5 Maintenance
1.6 Forms of notation
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1.7 Overview of this document
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2 Working principle of the appliance
2.1 Introduction
2.2 General working principle of the appliance
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2.3 The appliance's heating cycle
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2.4 Protection for the appliance 2.4.1 Introduction
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2.4.2 Appliance water temperature protection
2.4.3 Water temperature protection for the storage tank
2.4.4 Gas valve
2.4.5 Fan
Instruction manual SGS 17
2.4.6 Pressure switch
2.4.7 Flame probe
2.5 Safety of the installation
2.5.1 Unvented installation
18 Instruction manual SGS
2.5.4 Protection for the solar heating system Drain-back tank
Fluid temperature
2.5.5 Safety of the solar heating system Expansion vessel
Expansion valve
3 Installation
3.1 Introduction
3.2 Packaging
3.3 Environmental conditions
20 Instruction manual SGS
3.3.1 Air humidity and ambient temperature
3.3.2 Maximum floor load
Maximum floor load
Maximum floor load of storage tank
Instruction manual SGS 21
3.3.4 Appliance working clearances
3.3.5 Storage tank working clearances
Installation
22 Instruction manual SGS
3.4 Technical specifications
IMD-0220 R4
3.4.1 Dimensions of the appliance
Plan and elevation of the appliance Legend See the table.
Instruction manual SGS 23
3.4.2 General and electrical specifications
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3.4.3 Gas data
Page
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3.6 Water connections, Vented
3.6.1 Cold water side
3.6.2 Hot water side
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3.6.3 Circulation pipe
3.7 Water connections, Unvented
3.7.1 Cold water side
3.7.2 Hot water side
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3.7.4 Condensation drainage
3.8 Gas connection
3.9 Solar heating system
3.10 Air supply and flue 3.10.1 Introduction
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Instruction manual SGS 31
3.10.3 Concentric connections
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Instruction manual SGS 33
3.10.4 Parallel connections
34 Instruction manual SGS
Practical example of parallel flue gas discharge
Instruction manual SGS 35
3.11 Electrical connection
3.11.1 Introduction
3.11.2 Preparation
Page
Instruction manual SGS 37
3.11.3 Connecting the mains voltage
3.11.4 Isolating transformer
3.11.5 Connecting a program-controlled pump
3.11.6 Connecting an extra ON mode switch ("Tank ON")
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3.11.7 Connecting an extra error signal ('Alarm OUT' )
3.11.8 Connecting communication cable to solar heating system
3.12 Electrically connecting the solar heating system controller
3.12.1 Preparation
Instruction manual SGS 39
3.12.2 Connecting the mains power
3.12.3 Connecting pump station - modulating pump
3.12.4 Connecting solar collector
3.12.5 Connecting tank sensor
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3.12.7 Connecting communication cable
3.12.8 Connecting extra head pump
3.12.9 Connecting Q/T sensor
Instruction manual SGS 41
3.13 Checking the supply pressure and burner pressure
3.13.1 Preparation
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3.13.2 Procedure to check pressures
Instruction manual SGS 43
3.13.3 Adjusting the pressure
3.13.4 Finalising
Page
4 Conversion to a different gas category
4is
Page
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5gis
5.2 Filling unvented installations
5.3 Filling vented installations
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5.4 Filling solar heating system 5.4.1 Filling solar heating system with glycol
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6.2 Draining unvented installations
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6.3 Draining vented installations
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6gis
6.4 Draining solar heating system 6.4.1 Draining glycol-filled system
Instruction manual SGS 55
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
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8 Status of the appliance
8.3.1
8.3
8.2.2
8.2.1
8gis
8.4 Error conditions
8.5 Service condition
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9 Starting and running
9.1 Introduction
9.2 Starting the appliance
9.3 The appliance's heating cycle
9gis
Instruction manual SGS 61
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 SGS 63
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
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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
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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
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11.7.4 Week program: setting the program- controlled pump
11.8 Adding times to a week program
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11.9 Deleting times from a week program
11.10 Extra period
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11.11 Programming an extra period
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11.12 Se ttings
11.12.1 Setting menu language
11.12.2 Setting day and time
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11.12.3 Displaying appliance specifications
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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 Setting the service interval
12.7 Setting legionella prevention
12.7.1 Switching legionella prevention on and off
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12.8.1 Setting the drain-back tank
12.8.2 Setting the heating fluid type in the solar heating system
12.8.3 Setting threshold temperature of pump in solar heating system
12.8.4 Setting the solar limit temperature
12 is
12.8.7 Reading the energy contribution of the solar heating system
12.9 Setting the central heating configuration
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13 Troubleshooting
13.1 Introduction
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13.2 Troubleshooting table for general errors
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13.3 Troubleshooting table for displayed errors
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13.4 Displayed warnings
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14 Maintenance frequency
14.1 Introduction
14.2 Determining service interval
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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 appliance and storage tank
15 s
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16 Warranty (certificate)
16.1 General warranty
16.2 Tank warranty
16.3 Conditions for Installation and use
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16.4 Exclusions
16.5 Scope of the warranty
16.6 Claims
16.7 Obligations of A.O. Smith
17 Appendices
Appendices
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17.2 Menu structure
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17.4.1 Solar system electrical diagram legend
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17.5 Week program card
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Index
A
B
C
D
0308 853 1. UK
Index
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