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A.O. Smith SGE - 40 Installation, User And Service Manual

Condensing gas-solar water heater
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SGE
Condensing Gas-Solar
Water Heater
SGE - 40/60
Installation, User and Service
Manual
Innovation has a name.
0311 166
/ 07-2013

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Summary of Contents for A.O. Smith SGE - 40

  • Page 1 Condensing Gas-Solar Water Heater SGE - 40/60 Installation, User and Service Manual Innovation has a name. 0311 166 / 07-2013...
  • Page 2 A.O. Smith UK, Unit B8 Amstrong Mall, Southwood Business Park, Farnborough, Hampshire GU14 0NR www.aosmith.co.uk “A.O. Smith Water Heaters” is a trading name of Advance Services (Sales) Ltd. Reg.
  • Page 3 Errata The amendments below apply to: the preparation of the electrical connection of the solar heating control (3.12.1 "Preparation"); finishing maintenance (15.6 "Finalizing maintenance"); the electrical diagram of the solar heating control (17.4 "Electrical diagram solar heating system"). These instructions supersede the previous instructions of the solar heating control. 3.12.1 Preparation Remove the cover (snap-on type) from the terminal block of the solar heating control.
  • Page 4 17.3 Electrical diagram Electrical diagram solar heating system 1 = brown, 2 = blue, 3 = yellow / green, 4 = black, 5 = white, 6 = grey / beige, 7 = green, 8 = yellow...
  • Page 5 TERMINAL BLOCK CONNECTIONS Earth Neutral Live input of the controller Live input for the solar heating system modulating pump Modulating output of the solar heating system modulating pump COMPONENTS Controller Solar heating system pump (modulating) Temperature sensor (S - solar collector) Temperature sensor (S - tank) Combined Q/T sensor...
  • Page 6 If you have any comments or queries concerning specific aspects related to the water heater, then please do not hesitate to contact: A.O.Smith Water Products Company PO Box 70 5500 AB Veldhoven The Netherlands Telephone: 0870-AOSMITH 0870-2676484 General: +31 40 294 25 00 Fax: +31 40 294 25 39 E-mail: info@aosmith.nl...
  • Page 7 Instruction manual SGE...

  • Page 8: Table Of Contents

    Contents Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - 9 About the water heater - - - - - - - - - - - - - - - - - - - - - - - - - - - 9 What to do if you smell gas- - - - - - - - - - - - - - - - - - - - - - - - - 9 Regulations - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9 Target groups - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 10...
  • Page 9 Contents The control panel - - - - - - - - - - - - - - - - - - - - - - - - 57 Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 57 Control - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 57 Explanation of icons- - - - - - - - - - - - - - - - - - - - - - - - - - - - 57 ON/OFF switch on controller - - - - - - - - - - - - - - - - - - - - - - - 57...
  • Page 10 Errors- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 81 13.1 Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 81 13.2 Troubleshooting table for general errors - - - - - - - - - - - - - - - - - 82 13.3...
  • Page 11 Contents Instruction manual SGE...

  • Page 12: Introduction

    Introduction About the water This manual describes how to install, service and use the SGE water heater. The SGE water heater is a condensing boiler with a fan in the air intake. The heater water is heated partly by means of an external heat exchanger that can be connected to e.g.

  • Page 13: Target Groups

    Introduction British and European Standards • BS 6891: Installation of low pressure gas pipework of up to 35 mm (R1¼) in domestic premises (2nd family gas) - Specification. Note: for lager installations see IGE/UP/2 below. • BS 6798: Specification for installation and maintenance of gas-fired boilers of rated input not exceeding 70 kW net.

  • Page 14: Maintenance

    Target group symbols Symbol Target Group (End) user Installation engineer Service and maintenance engineer Caution This water heater is not intended for use by persons with reduced physical, sensory or mental capacities, or who lack the necessary experience or knowledge, unless the person responsible for their safety is supervising them or has explained to them how the water heater should be used.

  • Page 15: Overview Of This Document

    Introduction Overview of this document Chapter Target groups Description Working principle of the water This chapter describes the working principle of the water heater heater. Installation This chapter describes the installation activities to be carried out before final commissioning. Conversion to a different gas This chapter describes the activities required to convert category the water heater to a different gas category.

  • Page 16: Working Principle Of The Water Heater

    Working principle of the water heater Introduction This chapter covers the following topics: • General working principle of the water heater; • Water heater operating cycle; • Protection for the water heater; • Safety of the installation; • Protection for the solar heating system; •...

  • Page 17: Water Heater Operating Cycle

    Working principle of the water heater Cut-away view of the water heater Legend Unused numbers are not applicable cover hot water outlet electrical connector block controller pressure switch control panel temperature sensor T combustion chamber anode tank heat exchanger inspection and cleaning opening temperature sensor T cold water inlet...

  • Page 18: Protection For The Water Heater

    • Hysteresis The moment that T falls below (T - hysteresis), the controller solar diff registers such a heat demand that the gas burner and the solar heating system jointly heat the water. The solar heating system is only employed when the temperature measured by S is a certain (adjustable) value grater than that of S...

  • Page 19: Safety Of The Installation

    Working principle of the water heater Temperature protection protection Description Against frost: The frost protection cuts in. The water is heated to 20°C. < 5°C < 5°C Against overheating of water: The high-limit safeguard serves to prevent overheating and/or excessive >...

  • Page 20: Protection For The Solar Heating System

    2.5.1 Unvented installation With an unvented installation, an expansion valve and expansion vessel prevent the buildup of excessive pressure in the tank. This prevents damage being caused to the enamel coating (in the water heater) or to the tank. A non-return valve prevents excessive pressure build-up in the water supply system.

  • Page 21: Safety Of The Solar Heating System

    Working principle of the water heater Temperature protection for solar heating system Protection Description Maximum temperature: The pump of the solar heating system switches off > 130°C when the temperature of the heating fluid at S exceeds the maximum value. The solar heating system enters error mode.

  • Page 22: Installation

    Installation Warning The installation must be carried out by an approved installation engineer in compliance with the general and local regulations imposed by the gas, water and power supply companies and the fire brigade. The appliance may only be installed in a room that complies with the requirements stated in national and local ventilation regulations (1.3 "Regulations").
  • Page 23 Installation 3.3.1 Air humidity and ambient temperature The boiler room must be frost-free, or be protected against frost. The table shows the ambient conditions that must be adhered to for correct functioning of the electronics present in the appliance to be guaranteed. Air humidity and ambient temperature specifications Air humidity and ambient temperature Air humidity...

  • Page 24: Technical Specifications

    Working clearances IMD-0767 R0 Technical The water heater is supplied without accessories. Check the dimensions (3.4 "Technical specifications"), gas data (3.4.3 "Gas data") and specifications other specifications (3.4.2 "General and electrical specifications") of any accessories you plan to use. 3.4.1 Dimensions of the water heater Plan and elevation of the water heater Legend...
  • Page 25 Installation Size Description Unit SGE 40 SGE 60 Overall height 2055 2055 Position on pallet Appliance diameter Depth Width Diameter of flue gas discharge 100 / 150 100 / 150 Height of chimney flue 1995 1995 x position flue gas outlet x position flue gas outlet Height of gas/burner connection 1960...
  • Page 26 3.4.2 General and electrical specifications General and electrical specifications Description Unit SGE 40 SGE 60 Contents litres Empty weight Maximum floor load Maximum operating pressure (vented) kPa (bar) 800 (8) 800 (8) Maximum operating pressure, unvented kPa (bar) 550 (5,5) 550 (5,5) Control thermostat adjustment range °C...
  • Page 27 Installation 3.4.3 Gas data Gas data SGE 40 SGE 60 description Unit 2H3P Gas category 2H: G20 - 20 mbar Venturi injector diameter 44,4 63,3 Nominal load (gross) Nominal output 42,8 60,4 Supply pressure mbar (full load) Vol% 9,0 + 1,0 9,0 + 1,0 Gas consumption Gas category 3P: G31 - 37/50 mbar...

  • Page 28: Installation Diagram

    Installation diagram The figure shows the Installation diagram. This diagram is referred to in the sections describing the actual connection procedure. Installation diagram Legend Vented and unvented UNVENTED Unused numbers are not applicable pressure reducing valve (mandatory) T&P valve (mandatory) stop valve (recommended in pipe C and mandatory in pipe non-return valve (mandatory)

  • Page 29: Unvented Water Connections

    Installation Caution The installation diagram shows a pump station with an integrated non-return valve. This type of pump unit may only be used with closed systems. In systems with drain-back, installation of a pump unit with non-return valve is prohibited. There are special pump units for these systems.

  • Page 30: Vented Water Connections

    Vented water Warning The installation should be carried out by a competent person, in compliance connections with general and locally applicable regulations (1.3 "Regulations"). 3.7.1 Cold water side See (A) in the installation diagram (3.5 "Installation diagram"). 1. Fit an approved stop valve (4) on the cold water side between the cold water head tank (18) and the water heater, as required by applicable regulations.

  • Page 31: Gas Connection

    Installation Gas connection Warning The installation should be carried out by a competent person, in compliance with general and locally applicable regulations (1.3 "Regulations"). Caution Make sure that the diameter and length of the gas supply pipe are large enough to supply sufficient capacity to the water heater. See (D) in the installation diagram (3.5 "Installation diagram").

  • Page 32: Air Supply And Chimney Flue Discharge

    3.10 Air supply and chimney flue discharge 3.10.1 Introduction This section covers the following topics: • Requirements for flue gas discharge materials • Concentric connections • Parallel connections 3.10.2 Requirements for flue gas discharge materials Warning The installation should be carried out by a competent person, in compliance with general and locally applicable regulations (1.3 "Regulations").
  • Page 33 Installation Installation types IMD-0789 R0 Instruction manual SGE...
  • Page 34 Explanation of types of installation Installation type Description Air for combustion is drawn from the boiler room. Concentric and/or parallel wall flue terminal. Concentric and / or parallel roof flue terminal Water heaters on common air supply and flue gas discharge (concentric and/or parallel) in multi-storey building.

  • Page 35: Specifications

    Installation Water heater with concentric flue gas discharge material IMD-0791 R0 According to the table, the maximum permitted length is 40 metres, and 4 x 90 degree bends are permitted. Both requirements are fulfilled. Specifications Caution For type C13 and C33 installations,A.O.Smith prescribes the use of a roof or wall flue terminal, exclusively of a type approved for the water heater.
  • Page 36 Concentric roof flue terminal specifications C33 Subject Description Roof flue terminal set: Art. No. 0304 423 • 1x roof flue terminal Construction Concentric (incl. clamping ring) Manufacturer Muelink & Grol • 1x pipe 1000 mm Model M2000 DDV HR-C 1x mounting flange •...

  • Page 37: Electrically Connecting The Water Heater

    Installation Appliance with parallel flue gas discharge material The longest pipe must be used to check the maximum length. In this case, the chimney pipe is the longest. This is 4 metres. This 4 metres is the sum of pipe sections 1 and 2.
  • Page 38 3.11.2 Preparation Caution The water heater is phase-sensitive. It is absolutely essential to connect the mains live (L) to the live of the water heater, and the mains neutral (N) to the neutral of the water heater. Caution There must be no potential difference between neutral (N) and earth ( ). If this is the case, then an isolating transformer (3.11.4 "Isolating transformer") must be used in the supply circuit.
  • Page 39 Installation Terminal block Mains Isolating transformer Alarm Out Program- External Bus-link voltage controlled ON/OFF primary secondary pump 16 to 20 3.11.3 Connecting the mains power The water heater is supplied without a power cable and isolator. Note In order to receive electrical power, the water heater has to be connected to the mains power by means of a permanent electrical connection.
  • Page 40 3.11.5 Connecting a program-controlled pump Note The maximum power capacity for a pump regulated by the controller is 100W. 1. Connect neutral (N), live (L) and earth ( ) to terminals 13, 14 and 15 as indicated in the table (3.11.2 "Preparation"). 2.

  • Page 41: Electrical Connection Of The Solar Heating System

    Installation 3.12 Electrical connection of the This section covers the following topics: solar heating system • Preparation • Connecting the mains power • Connecting pump station - modulating pump • Connecting solar collector • Connecting tank sensor • Connecting communication cable Optionally you can connect an extra head pump and Q/T sensor: •...
  • Page 42 3.12.4 Connecting solar collector Note This sensor must be mounted in the solar collector;refer to the solar collector installation manual. Connect the sensor (S ) to the water heater as follows: 1. Connect the sensor to terminal 2 and 4 of J13. 2.

  • Page 43: Check The Supply Pressure, Gas Control Valve Pressure, Co 2 Value And Switching Pressure

    Installation 3.12.7 Connecting extra head pump Note This pump is essential if a greater head is required. When the system has such a high resistance (>66 kPa) that the pump in the pump station is insufficient, you can connect a second (ON/OFF) pump to the solar heating system controller.
  • Page 44 This test nipple has a sealing screw. Loosen the sealing screw by a few turns. Do not completely loosen it as it can be difficult to retighten. IMD-1095a R0 IMD-1096a R0 5. Open the gas supply and vent the gas supply line via the test nipple. 6.
  • Page 45 Installation 12. Use the pressure gauge to read the supply pressure and compare it against the value from the gas table (3.4.3 "Gas data"). Note Consult the mains gas supply company if the supply pressure is not correct. You cannot yet start using the appliance. You must now take the appliance out of service (10.3 "Isolating the water heater from the mains").
  • Page 46 10. Confirm with The display shown here will appear. SERVICE OPERATION FULL LOAD »PARTIAL LOAD The appliance is now in "PARTIAL LOAD" mode and will ignite. 11. You must wait about 1 minute after the display shows the text RUNNING before reading the dynamic pressures (the fan needs this time to get up to full speed, so that a reliable reading can be obtained).
  • Page 47 Installation Full-load measurement 10. From the service menu, select: SERVICE OPERATION | FULL LOAD Confirm with The appliance is now in "FULL LOAD mode" and will ignite. SERVICE Ê Ê FULL LOAD 65ÉC Tset 70ÉC RUNNING 11. The appliance is now running at FULL LOAD. Read the value from the CO meter and wait until this measured value has remained stable for some time.
  • Page 48 Partial load measurement 16. From the service menu, select: SERVICE OPERATION | PARTIAL LOAD Confirm with The appliance is now in "PARTIAL LOAD" mode and will ignite. SERVICE Ê Ê PARTIAL LOAD 65ÉC Tset 70ÉC RUNNING 17. The appliance is now running at PARTIAL LOAD. Read the value from the meter and wait until this measured value has remained stable for some time.
  • Page 49 Installation 3.13.4 Switching pressure measurement To measure the switching pressure, proceed as follows: 1. Isolate (10.3 "Isolating the water heater from the mains") the appliance from the power supply. 2. Carefully remove the covers from the appliance. 3. The electrical section is now visible. 4.

  • Page 50: Conversion To A Different Gas Category

    Conversion to a different gas category Introduction Caution The conversion may only by carried out by a competent person. If the appliance has to operate on a different family of gases (liquid petroleum gas or natural gas) or gas category other than that for which the appliance has been configured at the factory, then the appliance will have be adapted using a special conversion kit.
  • Page 51 Conversion to a different gas category Instruction manual SGE...

  • Page 52: Filling

    Filling Installation diagram Legend Vented and unvented UNVENTED Unused numbers are not applicable pressure reducing valve (mandatory) T&P valve (mandatory) stop valve (recommended in pipe C and mandatory in pipe non-return valve (mandatory) circulation pump (optional) drain valve (mandatory) manual gas valve (mandatory) pressure valve (mandatory) air bleed (mandatory)

  • Page 53: Filling Unvented Installations

    Filling Caution The installation diagram shows a pump station with an integrated non-return valve. This type of pump unit may only be used with closed systems. In systems with drain-back, installation of a pump unit with non-return valve is prohibited. There are special pump units for these systems.

  • Page 54: Filling Solar Heating System

    Filling solar heating system Note No special safety measures are required when working with the diluted glycol solution specified by the manufacturer. For more information about the fluid, please contact the manufacturer. Warning Before filling the solar heating system to replenish the heating fluid, make certain that: •...
  • Page 55 Filling 5.3.2 Filling met glycol 1. Insert the hose of the glycol pump into the jerry can containing the glycol. 2. Connect the pump to the jerry can. 3. Connect the hose of the glycol pump to the inlet combination of the pump station.

  • Page 56: Draining

    Draining Installation diagram Legend Vented and unvented UNVENTED Unused numbers are not applicable pressure reducing valve (mandatory) T&P valve (mandatory) stop valve (recommended in pipe C and mandatory in pipe non-return valve (mandatory) circulation pump (optional) drain valve (mandatory) manual gas valve (mandatory) pressure valve (mandatory) air bleed (mandatory)

  • Page 57: Draining Unvented Installations

    Draining Caution The installation diagram shows a pump station with an integrated non-return valve. This type of pump unit may only be used with closed systems. In systems with drain-back, installation of a pump unit with non-return valve is prohibited. There are special pump units for these systems.

  • Page 58: Draining Solar Heating System

    Draining solar Note No special safety measures are required when working with the diluted heating system glycol solution specified by the manufacturer. For more information about the fluid, please contact the manufacturer. 1. Activate the MENU with MENU »OFF ^ ON È...
  • Page 59 Draining Instruction manual SGE...

  • Page 60: The Control Panel

    The control panel Introduction Explanation of icons This chapter covers the following topics: The table explains the meanings of the icons. • Control; Icons and their meaning • Explanation of icons; Name Explanation • ON/OFF switch on controller; • Navigation buttons; Heat demand Heat demand detected...

  • Page 61: Navigation Buttons

    The control panel Navigation buttons The use of these buttons is explained with the help of the figure showing the main menu (11 "Main menu"). The navigation buttons are: • Buttons for UP , and DOWN • Enter: • Reset button: The arrows ^ and È...

  • Page 62: Status Of The Water Heater

    Status of the water heater Introduction 8.2.2 This chapter covers the following topics: In this mode, the water heater continually responds to the hot water demand. The figure shows the display • Operating modes; with the following information: • Error conditions; •...

  • Page 63: Error Conditions

    Status of the water heater 8.2.4 • line one: error code comprising a letter and two PROG digits, followed by the error description; In this mode a preset week program is active, and the • lines two to four: alternately, a brief explanation of water heater responds continually to demand within the error, and a brief action to resolve the error.

  • Page 64: Anode Warning

    Anode warning This message appears when the anode protection is no longer active. If the message appears, you must contact your service and maintenance engineer. WARNING POWER ANODE MALFUNCTION Note The water heater continues to function when this message appears. Q/T Sensor warning This message appears if the Q/T sensor has not been connected (properly) but has been selected in the...
  • Page 65 Status of the water heater Instruction manual SGE...

  • Page 66: Starting The Water Heater

    Starting the water heater Introduction 5. Press once on the blue arrow ( ) to position the cursor beside ON, then press . The This chapter covers the following topics: display shown in the figure will appear. • Starting the appliance. •...
  • Page 67 Starting the water heater When the water heater starts, it will run through the 5. After a number of seconds pre-glow, the gas following steps: control valve is opened and ignition takes place. 1. The water temperature drops below the set The icon is activated.

  • Page 68: Shutting Down

    Shutting down 10.1 Introduction 10.3 Isolating the water heater from the mains This chapter describes: The water heater may only be isolated from mains • Decommissioning the water heater for a short power in the correct way. The correct procedure is as period.
  • Page 69 Shutting down Instruction manual SGE...

  • Page 70: Main Menu

    Main menu 11.1 Introduction 11.2 Notation convention for menu-related instructions The MENU is reached by pressing the button on the controller. The MENU ( ) of the controller is divided into sub- menus. For example, SETTINGS is one of the MENU functions reached from the main menu.

  • Page 71: Week Program

    Main menu 2. Use: 11.6 Starting and stopping the week program • to increase the value; The week program can be started up from any other • to decrease the value. operating mode, as follows: • Confirm with .After confirming, the water heater enters "ONmode".
  • Page 72 The display shows the menu for the week program, 3. Use to set the hours. In the example, this see the figure below. With the default setting, the is 08. program switches on and off every day at 00:00 and Confirm with 23:59 respectively, the water temperature is 65ºC and The cursor moves to the minute digits, which will...

  • Page 73: Adding Times To A Week Program

    11.7.3 Week program: setting the water 11.8 Adding times to a week program temperature Call up the menu to INSERT switch-on and switch-off times into a week program as follows: 1. Use to set the water temperature. In the example this is 75°C. : WEEK PROGRAM | PROGRAM OVERVIEW.

  • Page 74: Deleting Times From A Week Program

    3. Proceed as follows: 3. Scroll with to DELETE. a. Set the switch-on time (11.7.1 "Week program: Confirm with setting the switch-on time"). To warn you that you are now working in the delete sub-menu, the cursor is replaced with an b.

  • Page 75: Extra Period

    The switching period has been deleted. You will return Setting the switch-on time now to the week program menu. The cursor points to 1. Use to set the day. In the example this is the first programmed period. Confirm with DAY TIME Tset ON »SU...

  • Page 76: Settings

    2. Use to set the minutes. In the example, 11.11 Settings this is 45. Using the option SETTINGS you can adjust certain Confirm with settings, and display certain water heater specifications: The cursor moves to the water temperature. See the figure •...
  • Page 77 11.11.2 Setting day and time 6. The cursor moves to the minute digits, which will blink. To enter the time and day: Scroll with to the next minute, for example MENU WEEK PROGRAM Confirm the minute setting with ^ EXTRA PERIOD È»SETTINGS TIME 15»45...

  • Page 78: Service Program

    Service program 12.1 Introduction 12.2 Setting the hysteresis The service program is used by the installation Call up the menu to set the hysteresis as follows: engineer or service and maintenance engineer for: : HYSTERESIS DOWN • Displaying the water heater history •...

  • Page 79: Displaying The Water Heater History

    12.4 Displaying the water heater history 12.7 Setting the service interval The water heater history sub-menu is used to display The service interval is a feature of the controller to help the burning hours, the number of ignitions, the number the service and maintenance engineer set the of flame errors and the number of ignition errors.

  • Page 80: Setting Legionella Prevention

    Temporarily raising the setpoint during 12.9.1 Switching legionella prevention on FULL and off LOAD PARTIAL LOAD :>:SERVICE OPERATION. To switch legionella prevention on or off, select: • : ANTI LEGIONELLA SERVICE OPERATION »FULL LOAD ANTI LEGIONELLA PARTIAL LOAD »YES 2. Select FULL LOAD or PARTIAL LOAD. The example below describes the situation for •...

  • Page 81: Solar Heating System Configuration

    12.10 Solar heating system configuration actually generating heat. This makes use of the difference between the temperature at the top of the Use the solar heating system settings menu to reach solar collector (S ) and that in the appliance the menus shown here: (measured by S SETTINGS SOLAR...

  • Page 82: Setting The Central Heating Configuration

    12.10.6 Displaying contribution This option enables you to read out how much energy the solar heating system supplies. For this data to be displayed, the installation must be equipped with a Q/T sensor (12.10.5 "Setting the Q/T sensor"). Three values are reported on the display: •...
  • Page 83 Instruction manual SGE...

  • Page 84: Errors

    Errors 13.1 Introduction A distinction is made between: • General errors General errors are not reported on the display. General errors are: Gas smell Display does not light up Insufficient or no hot water. Water leakage Explosive ignition. The manual includes (13.2 "Troubleshooting table for general errors") a table with general errors.

  • Page 85: Troubleshooting Table For General Errors

    13.2 Troubleshooting table for general errors Warning Maintenance may only be performed by a qualified service and maintenance engineer. General errors Indication Cause Measure Remark Gas smell Gas leak Warning Warning Close the main gas valve at once. Immediately contact your installation engineer or local gas company.
  • Page 86 Indication Cause Measure Remark Water leakage Leakage from a water Tighten the threaded connection If the leak persists, consult your installation engineer connection (threaded) Condensate leakage Check that the condensation water discharge is working properly. Rectify if necessary Leakage from another Trace the leak nearby water water heater or pipe segment...
  • Page 87 Indication Cause Measure Remark Glycol leakage Leakage from a fluid Tighten the threaded connection. If the leak persists or a component needs replacement, consult connection (threaded) your installation engineer Leakage from a 1. Tighten component joints component 2. Any defective components must be replaced Leakage from solar Consult the supplier and/or manufacturer heating system...

  • Page 88: Troubleshooting Table For Displayed Errors

    13.3 Troubleshooting table for displayed errors Displayed errors Code + description Cause Measure Remark S01 (blocking error) Sensor is not (correctly) Connect the sensor lead to JP3 See the electrical diagram (17 "Appendices"). connected Open circuit from Damaged cable and/or Replace the cable and/or sensor.
  • Page 89 Code + description Cause Measure Remark S07 (blocking error) Sensor is not (correctly) Connect the sensor lead to J14 (ports 2 and 4) of the solar See the electrical diagram (17 "Appendices"). connected controller Open circuit from Damaged cable and/or Replace the cable and/or sensor.
  • Page 90 Code + description Cause Measure Remark S15 (blocking error) Short circuit in sensor Replace the dummy sensor To replace the necessary parts, you must contact your installation circuit engineer Short circuit from dummy 2 S17 (blocking error) Short circuit in sensor Replace the cable and/or sensor.
  • Page 91 Code + description Cause Measure Remark Damaged wiring 1. Check the wiring between the fan and the controller. 2. If any wires are damaged, the wiring harness must be replaced. 3. Reset controller Contaminated or 1. Check if the fan is dirty and repair it if necessary. If the error cannot be resolved or is persistent, contact your blocked fan installation engineer...
  • Page 92 Code + description Cause Measure Remark F03 (lock out error) Damaged wiring/Open 1. Check the wiring between the pressure switch and the If the error cannot be resolved or is persistent, contact your circuit installation engineer controller The pressure switch To replace the necessary parts, you must contact your installation 2.
  • Page 93 Code + description Cause Measure Remark F04 (lock out error) No gas 1. Open the main gas supply valve and/or the manual gas supply To restore the gas supply, contact your installation engineer valve before the gas control valve Three unsuccessful 2.
  • Page 94 Code + description Cause Measure Remark F06 (blocking error) Damaged cable in Check the wiring and the flame probe. Replace the wiring and/or If the error persists, contact your installation engineer. contact with metal flame probe if necessary. To replace the necessary parts, you must contact your installation surface or bent flame Short circuit between engineer...
  • Page 95 Code + description Cause Measure Remark F19 (blocking error) There is not enough 1. Check that there is power to the controller See the electrical diagram (17 "Appendices"). supply voltage. If the error persists, consult your installation engineer 2. The measured voltage must be 230 V (-15%, +10%) Power supply voltage is too low.
  • Page 96 Code + description Cause Measure Remark C04 (blocking error) Incorrect water heater 1. Check whether the correct water heater is If the error cannot be resolved or is persistent, contact your selection/Incorrect installation engineer selected (3.4.2 "General and electrical specifications"). selection resistor Appliance selection To replace the necessary parts, you must contact your installation...

  • Page 97: Warnings On The Display

    13.4 Warnings on the display Warnings on the display Situation Cause Measure Note Maximum burning The actual burning Appliance runs, but displays a warning For maintenance to your appliance, please contact your installation hours: Servicing hours have exceeded engineer. required. the preset burning hours.
  • Page 98 Situation Cause Measure Note The anode protection is • The cables Appliance runs, but displays a warning. 1. Connect the wiring up properly and the warning will disappear. not working. between the 2. If the wiring is correct but the warning remains, check that the potentiostat and earth connection is good and whether the tank is filled with Note...
  • Page 99 Instruction manual SGE...

  • Page 100: Service Interval

    Service interval 14.1 Introduction A service should be carried out at least once a year, both on the water side and on the gas side. Among other things, the service interval depends on the water quality, the average burning time per day and the set water temperature. Note Regular maintenance extends the service life of the water heater.
  • Page 101 Service interval Instruction manual SGE...

  • Page 102: Performing Maintenance

    Performing maintenance 15.1 Introduction Caution Maintenance may only by carried out by an approved service and maintenance engineer. At each service, the water heater undergoes maintenance on both the water side and the gas side. The maintenance must be carried out in the following order.

  • Page 103: Water-Side Maintenance

    Performing maintenance 6. Switch the controller ON by setting the ON/OFF switch to position I. INTERNAL CHECK The display will now show INTERNAL CHECK for about 10 seconds, and will then go to the main menu. MENU »OFF ^ ON È...

  • Page 104: Gas-Side Maintenance

    Take the rate of scale formation into account when deciding on the service interval. Scale formation depends on the local water composition, the water consumption and the water temperature setting. A water temperature setting of maximum 60°C is recommended for the prevention of excessive scale build-up. To guarantee a good, watertight seal around the cleaning opening, replace the gasket, washers, bolts and, if necessary, the lid with new parts before reassembly (see the figure).

  • Page 105: Solar Collector Maintenance

    Performing maintenance 15.4.3 Clean heat exchanger 1. Detach the burner. 2. Clean the combustion chamber of the heat exchanger using a vacuum cleaner and a soft brush. 3. Detach the chimney flue. 4. Clean the end of the heat exchanger using tap water. 5.

  • Page 106: Warranty (Certificate)

    Warranty (certificate) To register your warranty, you should complete and return the enclosed warranty card, after which a warranty certificate will be sent to you. This certificate gives the owner of an appliance supplied by A.O.Smith Water Products Company B.V. of Veldhoven, Netherlands (hereinafter "A.O.Smith") the right to the warranty set out below, defining the commitments of A.O.Smith to the owner.

  • Page 107: Exclusions

    Warranty (certificate) The water heater is at all times fitted with cathodic protection. If sacrificial anodes are used for this, these must be replaced and renewed when, and as soon as, they are 60% or more consumed. When power anodes are used, it is important to ensure that they continue to work properly.

  • Page 108: Appendices

    Appendices 17.1 Introduction This appendix contains: • Menu structure of the main menu (17.2 "Menu structure") • Appliance electrical diagram (17.3 "Electrical diagram for the appliance") • Electrical diagram, solar heating system (17.4 "Electrical diagram, solar heating system") • Declaration of conformity (17.5 "Declaration of conformity") •...

  • Page 109: Menu Structure

    Appendices 17.2 Menu structure CONTROL SERVICE MAIN MENU PROGRAM HYSTERESE HYSTERESE DOWN HISTORY OF ERRORS START OPERATION APPLIANCE HISTORY CHANGE SETPOINT SELECT WEEK- APPLIANCE PROGRAMMA START OPERATION PUMP RELAY PROGRAM OVERVIEW SERVICE INTERVAL EXTRA PERIOD SERVICE OPERATION FULL LOAD SETTINGS PARTIAL LOAD LANGUAGE ANTI LEGIONELLA...
  • Page 110 Instruction manual SGE...

  • Page 111: Electrical Diagram For The Appliance

    Appendices 17.3 Electrical diagram Electrical diagram for the appliance X J2 JP11 JP12 21 22 23 Primair Secundair 230VAC 50Hz 0309 686a R0 230VAC 50Hz 1 = brown, 2 = blue, 3 = yellow / green, 4 = black, 5 = white, 6 = grey / beige, 7 = green, 8 = yellow Instruction manual SGE...
  • Page 112 TERMINAL STRIP CONNECTIONS CONTROLLER CONNECTIONS Earth Power connection for controller Neutral Extra error signal connection Live input of controller Gas control valve connection Live input of isolating transformer (primary Program-controlled pump connection side) Power connection for the fan Live output of isolating transformer Controller display connection (secondary side) Regulator connection for the fan...

  • Page 113: Electrical Diagram, Solar Heating System

    Appendices Electrical diagram, see Eratta. 17.4 Electrical diagram, solar heating system DD EE 230VAC 50Hz 0309 686b R0 1 = brown, 2 = blue, 3 = yellow / green, 4 = black, 5 = white, 6 = grey / beige, 7 = green, 8 = yellow Instruction manual SGE...
  • Page 114 CONTROLLER CONNECTIONS Earth Neutral Live input of controller Live input for the solar heating system pump ON/OFF. Live input for the solar heating system modulating pump. Neutral input for the solar heating system modulating pump. Modulation output of the solar heating system modulating pump COMPONENTS Control...

  • Page 115: Declaration Of Conformity

    Appendices 17.5 Declaration of Declaration of conformity conformity Instruction manual SGE...

  • Page 116: Week Program Card

    17.6 Week program card You can cut the week program card out and keep it near the water heater. Period TIME Tset Pump Period TIME Tset Pump ..°C ON / OFF ..°C ON / OFF ..°C ON / OFF ..°C ON / OFF ..°C ON / OFF...
  • Page 117 Instruction manual SGE...
  • Page 118 Index actuation 67 maintenance ambient conditions 19 condensation water discharge 101 ambient temperature 20 descaling 100 gas-side 101 heat exchanger 102 preparation 99 claims 104 scale 100 connecting the air supply 29 mode connecting the chimney flue 29 ERROR 60 connecting the circulation pipe 26, 27 SERVICE REQUIRED 60 connecting the cold water side 26, 27...
  • Page 119 Index symbol installation engineer 10 warranty 103 service engineer 10 exclusions 104 user 10 General information 103 installation and conditions of use 103 scope 104 water target groups 10 composition 20 terminal block 35 water heater ThermoControl displaying history 76 ON/OFF switch 57 displaying the selection 76 trademarks 3...

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