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A.O. Smith
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Water Heater
A.O. Smith
SGE
service manual
Maintenance frequency
Models:
SGE
1
92
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Troubleshooting
Specifications
Install
Electrical diagram
Error conditions
Symbol Target group
Connecting the mains voltage
Warranty
Maintenance
Symptom Cause Solution Remark
Page 92
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Maintenance frequency
is
92
Instruction manual SGE
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Contents
Installation User
Your installer
Read this manual carefully
Trademarks
Liability
More information
Gis
Table of contents
Service program
Troubleshooting
Maintenance frequency
Status of the appliance
Appendices
Performing maintenance
Warranty certificate
Table of contents
What to do if you smell gas Regulations
Introduction
About the appliance
Introduction
Target groups Maintenance Forms of notation
Symbol Target group
Overview of this document
Chapter Target groups Description
Gis
Topics covered in this chapter
Working principle of the appliance
Introduction General working principle of the appliance
Working principle of the appliance
Other settings that govern the control behaviour are
Appliances heating cycle
= time = Temperature 45 oC = Minimum tap water temperature
Appliance water temperature protection Gas valve
Pressure switch Flame probe
Protection for the appliance Introduction
Appliance water temperature protection
Pressure switch
Gas valve
4 Fan
Safety of the installation
Unvented installation
Vented installation
Flame probe
Fluid temperature
Safety of the solar heating system Expansion vessel
Expansion valve
Pump of the solar heating system
Installation
Packaging
Environmental
Conditions
Water composition
Air humidity and ambient temperature
Appliance maximum floor load
Working clearances
Technical specifications
Dimensions of the appliance
Appliance is supplied without accessories. Check
See the table
Dime Description SGE Nsion
General and electrical specifications
Gas data
Gas category 3+ G31 37 mbar
Installation diagram
See C in the installation diagram 3.5 Installation diagram
Water connections, Unvented Cold water side
Hot water side
Circulation pipe
Water connections, Vented
Condensation drainage
Gas connection
Air supply and flue Introduction
Requirements for flue gas discharge materials
This section covers the following subjects
Types of appliances
Concentric connections
Practical example of concentric chimney flue
Specifications
Following example illustrates how to use the table
Parallel connections
Subject Description
Appliance Diameter Maximum
Total length Bend
Practical example of parallel chimney flue
Appliance with parallel flue gas discharge material
Preparation Connecting the mains voltage
Connecting communication cable to solar heating system
Solar heating system
Electrical connection
11.2
Preparation
Connecting the mains voltage
Connecting continuous pump
Isolating transformer
11.2 Preparation
Connecting a program-controlled pump
Connecting an extra on mode switch Tank on
Connecting an extra error signal Alarm OUT
Connecting extra head pump Connecting Q/T sensor
Connecting solar collector
Connecting the mains power
Connecting pump station modulating pump
Connecting tank sensor
Connecting communication cable
Connecting extra head pump
Connecting Q/T sensor
Checking the supply pressure and burner pressure
Procedure to check pressures
Finish off 3.13.4 Finalising
Adjusting the pressure
Gas data
13.4
Finalising
Orifice assembly
Conversion to a different gas category
Burner pressure regulator Blank plate Gas control connector
Conversion to a different gas category
Page
Conversion to a different gas category
Filling
Filling
Filling the appliance Filling unvented installations
Filling vented installations
Flushing with water
Filling with glycol
Gis
Draining
Draining unvented Installations
Draining
Activate the Menu with
Position the cursor in front of OFF
Position the cursor in front of OFF Confirm OFF with
Draining vented installations
Draining solar heating system Draining glycol-filled system
Gis
Electronic controller ON/OFF switch
Control panel
Controls
Meaning of icons
Control panel
Navigation buttons
PC connection
Operating modes
Operating modes Error conditions Service condition
Status of the appliance
Service condition
Error conditions
Collector temperature warning
Q/T Sensor warning
Open 3.5 Installation diagram the manual gas valve
Starting and running
Starting the appliance
Starting the appliance Appliances heating cycle
Icon is activated Message Ignition appears
Starting and running
Icon is activated Message PRE Purge appears
Shut the appliance down for a brief period OFF mode
Shutting down
Shutting the appliance down for a long period
Electrically isolating the appliance
Shutting down
Switching on the on mode
Set the water temperature via
Main menu
Notational convention for menu-related instructions
Setting water temperature during on mode
Week program
Starting and stopping the week program
Changing the appliances standard week program
Week program setting the switch- on time
Week program setting the switch- off time
Week program setting the water temperature
Bring the cursor to SU Confirm with
Week program setting the program- controlled pump
Adding times to a week program
Confirm with Display shown in the figure will appear
Scroll with to Start Operation Confirm with
Confirm with Or use to cancel
Deleting times from a week program
Extra period
To delete a period, proceed as follows
Setting the switch-on time
Setting the switch-off time
Setting the water temperature
Setting the program-controlled pump
Settings
Setting menu language
Setting day and time
Adjustable settings
Displaying appliance specifications SGE
Confirm the minute setting with
Table shows the correct settings
Scroll with to Specifications Confirm with
Service program
Setting the hysteresis
Displaying the error history
Appliance Default Range
Switching the pump on or off
Setting the service interval
Setting legionella prevention
Switching legionella prevention on and off
Solar heating system configuration
Setting the drain-back tank
Setting the heating fluid type in the solar heating system
Setting the solar limit temperature
Reading the energy contribution of the solar heating system
Setting the QT sensor yes/no
Setting the central heating configuration
Troubleshooting
General errors
Displayed errors
Distinction is made between
Troubleshooting table for general errors
Symptom Cause Solution Remark Gas smell
Display is off
Start the appliance up 9 Starting and running
Symptom Cause Solution Remark Water leakage
Explosive ignition
Hot water supply
Insufficient or absent
Symptom Cause Solution Remark
Troubleshooting table for displayed errors Displayed errors
Code + Description Cause Solution Remark
S11 blocking error
S12 blocking error
S13 blocking error
F02 lock out error
Code + Description Cause Solution Remark S18 blocking error
F01 blocking error
Code + Description Cause Solution Remark F03 lock out error
Fails to work correctly Engineer Pressure switch not
Maintenance 15.2 Preparation for maintenance. If there is
Closing
Code + Description Cause Solution Remark F04 lock out error
F05 lock out error
No gas
Area
Code + Description Cause Solution Remark F06 lock out error
F07 lock out error
F08 lock out error
Safety relay Engineer
Code + Description Cause Solution Remark F10 lock out error
F11 blocking error
Code + Description Cause Solution Remark C02 lock out error
C03 blocking error
C04 blocking error
Selected appliance
Code + Description Cause Solution Remark E01 blocking error
Temperature
E03 lock-out error
E04 lock-out error
Displayed warnings
Maintenance frequency
Best maintenance frequency can be determined
Maintenance, based on the number of burning hours
Standard setting is 500 burning hours
Maintenance frequency
Wait until the fan has stopped. The icon is then dimmed
Performing maintenance
Introduction Preparation for maintenance
Performing maintenance
Water-side maintenance Introduction
Descaling and cleaning the tank
Checking the anodes
Following steps must be carried out on the water side
Cleaning condensation water discharge
Gas-side maintenance Introduction
Clean the burners
Clean the orifices
Warranty certificate
16.1 General warranty
16.2 Tank warranty
Collector warranty Conditions for Installation and use
Warranty certificate
Appendices
This appendix contains
Menu structure of the main menu 17.2 Menu structure
Heating system
Menu structure
Appendices
101
Electrical diagram for the appliance
Electrical diagram
Extra on mode switch
Extra error signal connection
Controller 0/I switch
Temperature sensor T1 top
Electrical diagram, solar heating system
Solar system electrical diagram legend
106
Week program card
Period
Tset Pump
Example Period
108
Index
109
0308
Index
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