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A.O. Smith
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Water Heater
A.O. Smith
SGE
service manual
106
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Troubleshooting
Specs
Install
Electrical diagram
Error conditions
Symbol Target group
Connecting the mains voltage
Warranty
Maintenance
Symptom Cause Solution Remark
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Image 106
17
Appendices
is
106
Instruction manual SGE
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Contents
Installation User
Your installer
Liability
Read this manual carefully
Trademarks
More information
Gis
Table of contents
Maintenance frequency
Service program
Troubleshooting
Status of the appliance
Warranty certificate
Performing maintenance
Appendices
Table of contents
About the appliance
Introduction
What to do if you smell gas Regulations
Symbol Target group
Target groups Maintenance Forms of notation
Introduction
Overview of this document
Chapter Target groups Description
Gis
Introduction General working principle of the appliance
Working principle of the appliance
Topics covered in this chapter
Appliances heating cycle
Other settings that govern the control behaviour are
Working principle of the appliance
Pressure switch Flame probe
= time = Temperature 45 oC = Minimum tap water temperature
Appliance water temperature protection Gas valve
Protection for the appliance Introduction
Gas valve
Appliance water temperature protection
Pressure switch
4 Fan
Vented installation
Safety of the installation
Unvented installation
Flame probe
Expansion valve
Fluid temperature
Safety of the solar heating system Expansion vessel
Pump of the solar heating system
Environmental
Installation
Packaging
Conditions
Appliance maximum floor load
Air humidity and ambient temperature
Water composition
Working clearances
Appliance is supplied without accessories. Check
Technical specifications
Dimensions of the appliance
See the table
Dime Description SGE Nsion
General and electrical specifications
Gas data
Gas category 3+ G31 37 mbar
Installation diagram
Hot water side
See C in the installation diagram 3.5 Installation diagram
Water connections, Unvented Cold water side
Circulation pipe
Water connections, Vented
Condensation drainage
Requirements for flue gas discharge materials
Gas connection
Air supply and flue Introduction
This section covers the following subjects
Types of appliances
Concentric connections
Following example illustrates how to use the table
Specifications
Practical example of concentric chimney flue
Appliance Diameter Maximum
Parallel connections
Subject Description
Total length Bend
Practical example of parallel chimney flue
Appliance with parallel flue gas discharge material
Solar heating system
Preparation Connecting the mains voltage
Connecting communication cable to solar heating system
Electrical connection
11.2
Preparation
Isolating transformer
Connecting the mains voltage
Connecting continuous pump
11.2 Preparation
Connecting an extra error signal Alarm OUT
Connecting a program-controlled pump
Connecting an extra on mode switch Tank on
Connecting extra head pump Connecting Q/T sensor
Connecting pump station modulating pump
Connecting the mains power
Connecting solar collector
Connecting extra head pump
Connecting tank sensor
Connecting communication cable
Connecting Q/T sensor
Checking the supply pressure and burner pressure
Procedure to check pressures
Gas data
Adjusting the pressure
Finish off 3.13.4 Finalising
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 vented installations
Filling the appliance Filling unvented installations
Filling
Flushing with water
Filling with glycol
Gis
Draining
Activate the Menu with
Draining unvented Installations
Draining
Position the cursor in front of OFF
Draining solar heating system Draining glycol-filled system
Draining vented installations
Position the cursor in front of OFF Confirm OFF with
Gis
Controls
Electronic controller ON/OFF switch
Control panel
Meaning of icons
PC connection
Navigation buttons
Control panel
Status of the appliance
Operating modes Error conditions Service condition
Operating modes
Collector temperature warning
Service condition
Error conditions
Q/T Sensor warning
Starting the appliance
Open 3.5 Installation diagram the manual gas valve
Starting and running
Starting the appliance Appliances heating cycle
Icon is activated Message PRE Purge appears
Starting and running
Icon is activated Message Ignition appears
Shutting the appliance down for a long period
Shut the appliance down for a brief period OFF mode
Shutting down
Electrically isolating the appliance
Shutting down
Main menu
Switching on the on mode
Set the water temperature via
Notational convention for menu-related instructions
Starting and stopping the week program
Setting water temperature during on mode
Week program
Changing the appliances standard week program
Week program setting the water temperature
Week program setting the switch- on time
Week program setting the switch- off time
Bring the cursor to SU Confirm with
Confirm with Display shown in the figure will appear
Week program setting the program- controlled pump
Adding times to a week program
Scroll with to Start Operation Confirm with
Extra period
Confirm with Or use to cancel
Deleting times from a week program
To delete a period, proceed as follows
Setting the water temperature
Setting the switch-on time
Setting the switch-off time
Setting the program-controlled pump
Setting day and time
Settings
Setting menu language
Adjustable settings
Table shows the correct settings
Displaying appliance specifications SGE
Confirm the minute setting with
Scroll with to Specifications Confirm with
Displaying the error history
Service program
Setting the hysteresis
Appliance Default Range
Setting legionella prevention
Switching the pump on or off
Setting the service interval
Switching legionella prevention on and off
Setting the heating fluid type in the solar heating system
Solar heating system configuration
Setting the drain-back tank
Setting the solar limit temperature
Setting the central heating configuration
Setting the QT sensor yes/no
Reading the energy contribution of the solar heating system
Displayed errors
Troubleshooting
General errors
Distinction is made between
Display is off
Troubleshooting table for general errors
Symptom Cause Solution Remark Gas smell
Start the appliance up 9 Starting and running
Hot water supply
Symptom Cause Solution Remark Water leakage
Explosive ignition
Insufficient or absent
Symptom Cause Solution Remark
Troubleshooting table for displayed errors Displayed errors
S12 blocking error
Code + Description Cause Solution Remark
S11 blocking error
S13 blocking error
F01 blocking error
Code + Description Cause Solution Remark S18 blocking error
F02 lock out error
Maintenance 15.2 Preparation for maintenance. If there is
Code + Description Cause Solution Remark F03 lock out error
Fails to work correctly Engineer Pressure switch not
Closing
No gas
Code + Description Cause Solution Remark F04 lock out error
F05 lock out error
Area
F08 lock out error
Code + Description Cause Solution Remark F06 lock out error
F07 lock out error
Safety relay Engineer
Code + Description Cause Solution Remark F10 lock out error
F11 blocking error
C04 blocking error
Code + Description Cause Solution Remark C02 lock out error
C03 blocking error
Selected appliance
E03 lock-out error
Code + Description Cause Solution Remark E01 blocking error
Temperature
E04 lock-out error
Displayed warnings
Maintenance, based on the number of burning hours
Maintenance frequency
Best maintenance frequency can be determined
Standard setting is 500 burning hours
Maintenance frequency
Introduction Preparation for maintenance
Performing maintenance
Wait until the fan has stopped. The icon is then dimmed
Performing maintenance
Checking the anodes
Water-side maintenance Introduction
Descaling and cleaning the tank
Following steps must be carried out on the water side
Clean the burners
Cleaning condensation water discharge
Gas-side maintenance Introduction
Clean the orifices
16.2 Tank warranty
Warranty certificate
16.1 General warranty
Collector warranty Conditions for Installation and use
Warranty certificate
Menu structure of the main menu 17.2 Menu structure
Appendices
This appendix contains
Heating system
Menu structure
Appendices
101
Electrical diagram for the appliance
Electrical diagram
Controller 0/I switch
Extra on mode switch
Extra error signal connection
Temperature sensor T1 top
Electrical diagram, solar heating system
Solar system electrical diagram legend
106
Tset Pump
Week program card
Period
Example Period
108
Index
109
0308
Index
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