A.O. Smith Innovo IR 12-160 Installation, User And Service Manual Download Page 34 | Manualshive

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6.4

Environmental aspects

6.4.1

Recycling

The packaging material is environmentally friendly, recyclable and relatively easy to
discard.

6.4.2

Disposal

Old end-of-life appliances contain materials that need to be recycled. When you discard
devices at the end of their service life, you must obey local legislation related to waste
disposal.

Never discard your old device together with regular waste. Put the device into a municipal
waste collection depot for electrical and electronic equipment. If necessary, ask your
supplier or your service and maintenance engineer for advice.

34

Installation, Maintenance and Service part

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Summary of Contents for Innovo IR 12-160

Page 1: ...0312266 R5 1 Innovo Condensing High Efficiency Water Heater IR 12 160 12 200 20 160 20 200 24 245 24 285 32 245 32 285 32 380 Installation User and Service Manual 2822 UK ...

Page 2: ...B7 B8 Armstong Mall Southwood Business Park Farnborough Hampshire GU14 ONR UK T 0870 267 6484 sales aosmith co uk www aosmith co uk A O Smith Europe De Run 5305 PO Box 70 5500 AB Veldhoven The Netherlands Data is subject to change ...

Page 3: ...user to Read this manual carefully and obey the instructions Ask your installation engineer for advise about the use of the water heater Make sure that the service and maintenance activities are done by a qualified engineer Store the manual in good condition near the water heater Installation engineer A O Smith accepts no liability when the water heater is not used correctly and requires the insta...

Page 4: ... GAR the European Standard for Gas fired storage water heaters for the production of domestic hot water EN89 The European ECO Design Directive The European Energy Labeling Directive Refer to the appendix Declaration of conformity see 13 5 Regulations It is law that all gas appliances are installed by competent persons in accordance with The Gas Safety Installation and Use Regulations 1998 Failure ...

Page 5: ...s PO Box 70 5500 AB Veldhoven The Netherlands Telephone 0870 AOSMITH free 0870 267 64 84 General 31 40 294 25 00 E mail info aosmith nl Website www aosmith co uk In the event of problems with your gas electricity or water supply connections contact your energy water supplier 0312266_INNOVO_UKUK_V5 1 2022 07 12 5 ...

Page 6: ...6 ...

Page 7: ...hat describes the correct installation and maintenance procedures Target group The information in this manual applies to three target groups users installation engineers service and maintenance engineers The User part is intended for the end users The Installation Maintenance and Service part is intended for the installation engineers and the service and maintenance engineers Notation conventions ...

Page 8: ...eed special attention Note A note gives more information on a topic Caution Obey the caution instructions to prevent damage of the water heater Warning Obey the warning instructions to prevent danger of personal injury and serious damage to the water heater Document identification Article number Language Version 0312266 EN 5 1 n c w 8 ...

Page 9: ...ns 7 Document identification 8 User part 13 1 Introduction 15 2 Safety 17 3 Interface 19 3 1 Operator interface 19 3 1 1 Control Switch 19 3 1 2 Buttons 20 3 1 3 LCD display 20 3 2 Status of the water heater 21 3 2 1 Operating modes 21 3 2 2 Error conditions 22 3 2 3 Service conditions 22 3 2 4 Anode warning 23 4 Use 25 4 1 Set a parameter value 25 0312266_INNOVO_UKUK_V5 1 2022 07 12 9 ...

Page 10: ...2 Instructions on the water heater 32 6 3 Safety devices 33 6 4 Environmental aspects 34 6 4 1 Recycling 34 6 4 2 Disposal 34 7 Water heater 35 7 1 Structure of the water heater 35 8 Installation 37 8 1 Packaging 37 8 2 Conditions 37 8 2 1 Ambient conditions 37 8 2 2 Maximum floor load 37 8 2 3 Water composition 38 8 2 4 Working clearances 38 8 2 5 Level the water heater 38 8 3 Installation diagra...

Page 11: ...Decommisioning 55 8 10 1 Turn off the water heater 55 8 10 2 Draining 55 9 Conversion of gas type 57 10 Settings 59 10 1 Operator interface 59 10 2 Parameters 59 10 3 Hysteresis 61 10 4 Error history 62 10 5 Test cycle 62 10 6 Legionella prevention 62 11 Maintenance 63 11 1 Performance check 63 11 2 Preparation 64 11 3 Water side maintenance 64 11 3 1 Descale the tank 64 11 3 2 Clean the condensat...

Page 12: ...al errors 71 12 1 2 Displayed errors 74 12 1 3 Warnings 80 13 Appendices 81 13 1 Technical details 81 13 2 Dimensions 82 13 3 Gas details 84 13 3 1 Energy labeling 85 13 4 Electrical wiring diagram 87 13 5 Declaration of conformity 89 13 6 Warranty 90 Index 93 12 ...

Page 13: ...User part 0312266_INNOVO_UKUK_V5 1 2022 07 12 13 ...

Page 14: ...14 ...

Page 15: ...he tank through the water inlet 1 The heated water leaves the tank at the top through the hot water outlet 2 To operate the water heater the display 3 and control switch 4 are used Fig Innovo water heater 1 2 4 3 1 Water inlet 2 Water outlet 3 Operator interface 4 Control switch 0312266_INNOVO_UKUK_V5 1 2022 07 12 15 ...

Page 16: ...16 User part ...

Page 17: ...lants bleaching agents and degreasing agents etc disperse of explosive vapors and or cause accelerated corrosion If the water heater is used in a room where such substances are stored or used the warranty will be void Caution Installation maintenance and service may only by carried out by a qualified engineer Caution The water heater is not intended for use by persons incl children under the age o...

Page 18: ...18 User part ...

Page 19: ... to change parameters and to verify the status and history of the water heater Fig Operator interface enter reset menu Innovo EXT 2 1 1 LCD display 2 Push buttons 3 1 1 Control Switch With the control switch you can activate and deactivate the controller of the water heater Warning The power of the water heater stays on when the control switch is set to 0 When the control switch is set to I the di...

Page 20: ...lay and 3 characters in the center of the display The characters represent parameters Fig LCD display 2 1 1 Characters 2 Symbols The symbols on the display show visual information about the status of the water heater Symbol Explanation Heat demand present Water heater in operation Water heater not in operation ERROR Frost protection is activated Scroll through menu Shown on the right side corners ...

Page 21: ...eter 001 to switch the water heater to OFF mode In the OFF mode the water heater is de activated The display shows the characters OFF Fig OFF mode display Fig Frost protection is activated To prevent that the water in the system freezes the frost protection is activated when the water heater is in OFF mode The frost protection starts when the temperature of the water drops below 5 C The display sh...

Page 22: ...ways have one letter and two digits Fig Error code display Note When the display shows an error code try to reset the water heater Contact your service and maintenance engineer or supplier when the water heater does not restart or when the display shows the error code again 3 2 3 Service conditions When the display shows Src the water heater functions normally but requires periodical service Conta...

Page 23: ...he anode protection is not active the display shows Ano Contact your service and maintenance engineer Fig Anode warning display Note If you ignore the anode warning the tank protection cannot be guaranteed The warranty will be void n 0312266_INNOVO_UKUK_V5 1 2022 07 12 23 ...

Page 24: ...24 User part ...

Page 25: ...the display shows OFF the water heater is ready to use 4 2 1 Switch to ON mode To switch to ON mode see 3 2 1 2 change parameter 001 to ON refer to Set a parameter value see 4 1 4 2 2 Set the water temperature To change the temperature setpoint Adjust parameter 002 refer to Set a parameter value see 4 1 or Directly from ON mode a Directly use or to set the temperature value b Press ENTER to confir...

Page 26: ...he mains 1 Set parameter 001 to OFF refer to Set a parameter value see 4 1 2 Wait 1 minute to make sure that the water heater stopped operating 3 Set the control switch to 0 4 Disconnect the water heater from the mains by turning the isolator 4 3 3 Turn off for a long period When the water heater needs to be turned off for more than 2 months contact your service and maintenance engineer to decommi...

Page 27: ...Installation Maintenance and Service part 0312266_INNOVO_UKUK_V5 1 2022 07 12 27 ...

Page 28: ...28 User part ...

Page 29: ...ank through the water outlet 3 at the top of the tank The tank of the water heater has to be completely filled during operation The tank at least must remain under mains water supply pressure at any time Fresh cold water is immediately added when hot water is drawn from the water heater A temperature sensor measures the water temperature Fig Innovo water heater 1 3 2 1 Water inlet 2 Heat exchanger...

Page 30: ...play of the water heater 7 When the water temperature reaches the setpoint the heat demand ends and the controller stops the operating cycle The icons Heat demand present and Water heater in operation on the display turn off 8 The fan starts post purging The operating cycle starts again when a new heat demand is detected 30 Installation Maintenance and Service part ...

Page 31: ...nal can cause the water heater to malfunction Caution During installation obey the instructions delivered with the sets of air supply components and the flue gas discharge components Make sure that the venting system does not exceed the maximum number of 45º and 90º bends and the maximum pipe length Caution Make sure that the diameter of the gas supply pipe is large enough to supply sufficient cap...

Page 32: ... and must be at least 5 cm deep with a length and width of at least 5 cm larger than the water heater 6 2 Instructions on the water heater The water heater has some safety instructions on its cover The text Read the installation instructions before installing the appliance The text Read the user instructions before putting the appliance into operation Also the packaging has some safety instruction...

Page 33: ... The flame probe detects if there is a flame in the burner Safety devices of the installation Expansion vessel The expansion vessel stores temporarily expansion water to keep the pressure in the installation at the right level Expansion valve The expansion valve prevents excessive pressure in the tank of the water heater Pressure reducing valve The pressure reducing valve reduces the water mains p...

Page 34: ... be recycled When you discard devices at the end of their service life you must obey local legislation related to waste disposal Never discard your old device together with regular waste Put the device into a municipal waste collection depot for electrical and electronic equipment If necessary ask your supplier or your service and maintenance engineer for advice 34 Installation Maintenance and Ser...

Page 35: ...tons and a 3 character display Refer to Operator interface see 3 1 Tank 9 The water is stored and heated up in the tank Burner engine 2 8 The burner engine ignites the air and gas mixture to heat up the water Fig Components water heater 1 5 4 3 2 6 7 8 9 12 10 11 13 14 1 Operator interface 2 Flame rod 3 Burner 4 Hot surface igniter 5 Fan 6 Venturi 7 Gas control valve 8 Controller 9 Tank 10 Combust...

Page 36: ...36 Installation Maintenance and Service part ...

Page 37: ...cation Remove the packaging material carefully to prevent damage to the water heater 8 2 Conditions The water heater is suitable for room sealed and for open combustion For these types of combustion you must comply with the local applicable directives and ventilation regulations 8 2 1 Ambient conditions The installation site must be frost free If necessary adjust the installation site to keep it f...

Page 38: ... table a water treatment specialist should be consulted 8 2 4 Working clearances Make sure that there is sufficient clearance to access the water heater 100 cm in front of the water heater AA 50 cm at the left and right side of the water heater BB 100 cm at the top of the water heater Fig Working clearances 8 2 5 Level the water heater Make sure that the water heater is level before installation U...

Page 39: ... 1 Pressure relief valve mandatory if the mains water pressure is too high 3 T P valve 4 Stop valve recommended 5 Non return valve 6 Circulation pump optional 9 Drain valve 10 Manual gas valve 11 Service stop valve recommended 12 Temperature gauge optional 13 Condensate drain 14 Draw off points 15 Expansion valve 16 Expansion vessel A Cold water supply B Hot water outlet C Circulation pipe D Gas s...

Page 40: ...late long hot water pipes to prevent unnecessary energy loss Install the hot water connection 1 Install a stop valve 11 in the hot water outlet pipe for service reasons 2 If applicable install a temperature gauge 12 3 Install a T P valve 3 8 4 3 Circulation connection Install a circulation pump when an immediate flow of hot water at draw off points is required This improves comfort and reduces wat...

Page 41: ...ly sufficient capacity to the water heater Caution Make sure that the gas supply pipe is clean Contamination in the pipe can cause damage to the gas control valve during operation Caution Install the manual gas valve on a spot accessible for the user Install the gas connection 1 Install the manual gas valve 10 in the gas supply pipe 2 Make sure that the gas pipe is clean before use If necessary re...

Page 42: ... Closed Water heaters supplied without venting materials These water heaters must be installed in compliance with local regulations The water heater is intended to be connected to a separately approved and marketed venting system This manual does not discus installation type B23 When you need a B23 system contact A O Smith for more information Caution Always make sure that the venting system is mo...

Page 43: ...tems Use a wall terminal set or a roof terminal set to install a C13 or a C33 concentric venting system Description Concentric Venting material Venting material PP Venting material Alu Manufacture venting material Muelink Grol Muelink Grol Construction Concentric Concentric Material flue gas outlet PP Temp Class T120 Thick walled aluminum Material air inlet Thin walled galvanized steel Thin walled...

Page 44: ...5042 Roof terminal 0310753 0304983 Concentric pipe 250 mm 0310740 Concentric pipe 500 mm 0310741 0302510 Concentric pipe 1000 mm 0310742 0311448 Concentric pipe 1500 mm 0311449 Concentric pipe 2000 mm 0310743 Concentric pipe telescopic 3 0310744 Concentric pipe to cut 0310745 Concentric bend 45 0310734 0302514 Concentric bend 90 0310735 0302513 1 supplied with wall flange and clamping ring 2 suppl...

Page 45: ...enting material PP Venting material Alu Manufacture venting material Muelink Grol Muelink Grol Construction Parallel Parallel Material flue gas outlet PP Temp Class T120 Thick walled aluminum Material air inlet Diameter flue gas outlet 80 0 6 0 6 mm 80 0 3 0 7 mm Diameter air inlet Description parts A O Smith Part number A O Smith Part number Wall terminal set A wall terminal 1 an adapter a 500 mm...

Page 46: ...5 to IR 32 380 Diameter flue discharge air inlet mm mm 80 80 80 80 Maximum length air inlet m 50 75 Maximum length flue gas outlet m 50 75 Lequivalent 45 bend m 1 1 1 1 Lequivalent 90 bend m 3 9 3 9 Caution Always make sure the installation is in compliance with the requirements stated in this table Caution Use a special adapter box to convert the concentric connection on the water heater to a par...

Page 47: ...mon duct is part of the building not a part of the system Note In a C53 venting system the flue gas terminal must be CE approved and must comply to the EN 1856 1 requirements Note Connect a C63 venting system to a separately approved and marketed system for the supply of combustion air and discharge of flue gasses The flue gas terminal must comply to the EN 1856 1 requirements The maximum allowabl...

Page 48: ... parallel water heater side part number 0312209 for C63 parallel systems 8 8 Electrical connections Warning Leave the water heater electrically isolated until you are ready to commission it 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 The water heater can...

Page 49: ...ater Fig Remove the cover 1 The mains power and optional electrical connections have to be connected to the terminal block of the controller refer to Structure of the water heater see 7 1 Fig Terminal block 1 2 3 1 Tulles 2 Pull relieves 3 Connections 0312266_INNOVO_UKUK_V5 1 2022 07 12 49 ...

Page 50: ...olating transformer For more information about an isolating transformer or to order an isolating transformer please contact A O Smith 8 8 3 2 External ON mode switch Install an external ON mode switch 1 Pull the cables through the tulles 2 Connect the cables to X3 and X4 3 Install the cables in a pull relief under the electrical section 4 Set the appropriate settings in the interface Note Use para...

Page 51: ...sage on the display Install an additional error signal 1 Pull the power cable through the tulles 2 Connect the cables to X1 and X2 3 Install the cables in a pull relief under the electrical section 8 8 4 Finalization When all connections are made install the cover on the water heater 1 Place the cover on the water heater 2 Use a hex driver to tighten the screw at the front of the cover Fig Install...

Page 52: ...specified value in the Technical details If necessary install a pressure reducing valve 1 Examine if the expansion valve in the protected cold supply set up is installed correctly and is not defect If necessary replace the expansion valve 8 9 2 Air pressure differential Check the air pressure differential across the air pressure switch 1 Disconnect hose H of the air proving switch and connect this...

Page 53: ...If necessary create a heat demand Use a hot water draw off point to tap water or Raise the setpoint of the water temperature refer to Set the water temperature see 4 2 2 7 Wait about 1 minute 8 Use the pressure gauge to read the supply pressure and compare it with the value from the appendix Gas details Note Consult the mains gas supply company if the supply pressure is not correct Take the water ...

Page 54: ... from the appendix Gas details The CO2 value at full load must be within 1 0 vol of the CO2 value stated in the table Caution When the CO2 value is not correct refer to General errors see 12 1 1 CO2 value at full load is not correct Do not use the water heater when the CO2 value is not correct and this is not caused by the restrictor venturi venting system or gas category Switch off the appliance ...

Page 55: ...n the user part to Turn on the water heater see 4 2 8 10 Decommisioning To decommission the water heater 1 Turn off the water heater see 8 10 1 2 Drain the water heater see 8 10 2 8 10 1 Turn off the water heater Refer to the procedure in the user part to Turn off the water heater see 4 3 and isolate the water heater from the mains power supply 8 10 2 Draining Refer to the installation diagram see...

Page 56: ...56 Installation Maintenance and Service part ...

Page 57: ...ry You can order the conversion kit you need from the supplier of your water heater The conversion kit contains all the parts needed to do the conversion and a description of how to do the conversion The following conversions are possible Conversion from natural gas to LPG Conversion from LPG to natural gas Conversion from natural gas to natural gas Caution After the conversion make sure that the ...

Page 58: ...58 Installation Maintenance and Service part ...

Page 59: ...Value Adjustable Range Default 001 Turn the water heater on or off Off ON Yes Off water heater off OFF mode ON water heater on ON mode Off 002 Setpoint ON mode ºC Yes 40 max setpoint 1 65 003 Hysteresis ºC Yes 2 15 10 004 Turn setpoint EXT mode 005 on or off ENA dIS Yes ENA Enable dIS Disable dIS 005 2 Setpoint EXT mode 2 ºC Yes 40 max setpoint 1 70 101 102 Actual water temperature C No 0 99 109 A...

Page 60: ...S leave test cycle FAn pre purge on ignition speed Lo burn on partial load Ign burn on ignition speed Hi burn on full load rEg t b d 202 Turn the power anode warning on or off Off ON Yes Off power anodes deactivated ON power anodes activated ON 203 Minimum fan speed 10 rpm No 0 990 204 Ignition fan speed 10 rpm No 0 990 205 Maximum fan speed 10 rpm No 0 990 207 Maximum setpoint ºC Yes 40 85 70 208...

Page 61: ...g days 10 days No 0 990 281 Selection code No 0 990 1 The maximal setpoint parameter 207 is factory set at 70 A qualified engineer can modify this value 2 Parameter 005 will only be accessible when parameter 004 is set on ENA Note When parameter 202 is set to Off the anode warning Ano will not be shown on the display Also when there is a problem with the anode protection this warning will not be s...

Page 62: ...vention When the anti legionella program is activated the water heater heats the water to the anti legionella setpoint When the anti legionella setpoint is reached the temperature may not decrease more than 3 C below the anti legionella setpoint for 60 minutes The anti legionella setpoint can be set with parameter 209 The anti legionella program has 2 functionalities start up functionality The ant...

Page 63: ... 11 3 Gas side maintenance see 11 4 Finalization see 11 5 Note For maintenance purposes a special gasket and mounting set can be ordered at your supplier This kit contains the necessary gaskets bolts and washers Look at the data plate for the correct ordering information 11 1 Performance check Check if the performance of all components is correct 1 Make sure that the water heater operates the oper...

Page 64: ...page 3 To descale and clean the tank 1 Decommision the water heater see 8 10 2 Remove the cover plate 5 on the bottom of the front of the tank 3 Remove the isolating material to see the cleaning opening 4 Loosen the 6 bolts 4 5 Remove the cleaning opening cover 3 6 Remove the gasket 2 7 Inspect the tank and remove the loose scale deposits and contamination a Remove the scale and contamination by h...

Page 65: ...hat the slope of the drain pipe is correct 5 mm m 8 Install the condense trap onto the condensate drain Fig Condensate drain 1 2 3 1 Condensate drain 2 Condense trap 3 Drain pipe 11 4 Gas side maintenance Do gas side maintenance when the water heater does not operate correctly the air pressure differential is not correct and or the CO2 value is not correct To do gas side maintenance Clean the burn...

Page 66: ... Remove the burner 6 Loosen the four nuts 5 to disconnect the burner assembly 6 from the combustion chamber 7 7 Take the burner assembly out of the combustion chamber Caution Be carefull the burner can be hot Caution Always replace the seal after removal of the burner Note Mind the ground cable Fig Remove the burner assembly 6 7 5 5 5 Nuts 6 Burner assembly 7 Combustion chamber c n 66 Installation...

Page 67: ...he adapter from the burner flange 15 12 Take out the burner 14 from the burner flange Fig Disassemble the burner assembly 13 14 15 8 10 11 9 9 12 8 Non return valve 9 Bolts 10 Hot surface igniter 11 Flame rod 12 Adapter 13 Gasket 14 Burner 15 Burner flange Use compressed air to remove all contamination from the outside to the inside of the burner 11 4 2 Clean the combustion chamber Use a vacuum cl...

Page 68: ...ith four nuts onto the combustion chamber 5 Place the non return valve on the adapter Note Make sure that you install the non return valve upright 6 Install the burner engine with two bolts to the adapter 7 Connect the gas supply pipe to the burner engine 8 Connect the flexible air connector to the air inlet box 9 Connect all control box plugs 10 Open the gas control valve refer to Installation di...

Page 69: ...5 Turn on the water heater see 4 2 6 Set parameter 211 to rst refer to Settings see 10 7 Press RESET The water heater goes to OFF mode 0312266_INNOVO_UKUK_V5 1 2022 07 12 69 ...

Page 70: ...70 Installation Maintenance and Service part ...

Page 71: ...to view the error history of the water heater refer to Error history see 10 4 12 1 1 General errors Note For the coding of the connections refer to the Electrical wiring diagram see 13 4 Indication Cause Measure Gas smell There is a gas leak Close the mains gas valve at once Do not operate any switches No naked flames Ventilate the boiler room Immediately contact your installation engineer or your...

Page 72: ... see 11 4 There is an air leakage between the venturi and the flexible air connector Make sure that the flexible air connector is not damaged If necessary replace the flexible air connector the flexible air connector is correctly connected to the venturi If necessary tighten the clamp Insufficient or no hot water The water heater is off Turn on the water heater see 4 2 There is no supply voltage M...

Page 73: ...turi and flexible venturi connector Make sure that the flexible venturi connector is not damaged If necessary replace the flexible venturi connector Make sure that the flexible venturi connector is correctly connected If necessary tighten the clamp Recirculation of flue gases Make sure that the CO2 value measured in the flue gas outlet is correct refer to CO2 value see 8 9 4 Make sure that the CO2...

Page 74: ...ency is correct and the error reapers replace the controller C03 blocking error Control error More then 7 resets detected in a short period Wait for the error to disappear maximal 1 hour If the error does not disappear replace the controller C04 blocking error Control error This error appears when the controller and or display is replaced Incorrect selection of the water heater Turn the water heat...

Page 75: ...ontroller Make sure that the rotor of the fan can rotate freely and reset the controller Due to a drop in supply voltage the fan will not run at the correct speed Make sure that the supply voltage is correct and reset the controller The measured voltage must be 230 VAC 15 10 Contact you maintenance and service engineer when the supply voltage is not correct Defective motor and or rotor Make sure t...

Page 76: ... burner is stuck Make sure that the non return valve can move freely If necessary replace the non return valve Not enough pressure differential across the air proving switch due to venting system malfunctioning condensation discharge dirty burner blocked heat exchanger Check after each fix if the error reappears If the error reappears continue in finding the cause Measure the pressure differential...

Page 77: ...n the 36 and 72 Ohm at room temperature Make sure that the hot surface igniter lights up during ignition If necessary replace the hot surface igniter Defect in the ionisation circuit Make sure that the flame probe is installed correctly Make sure that the wiring of the flame probe is not damaged Measure the ionisation current This current must be a minimum of 3 μA parameter 109 If necessary replac...

Page 78: ...ary seals No sufficient gas supply Make sure that the gas supply pressure is correct Supply voltage too low Make sure that the supply voltage on the controller is correct If the supply voltage is below the stated tolerance and the error persists contact your maintenance and service engineer Install an isolating transformer F07 lock out error Ionisation error Ionisation measured after the gas contr...

Page 79: ...while fan runs during post purge Damaged wiring open circuit See measure of error F03 Switch is not closed when fan is running during pre purge S02 blocking error Sensor error Open circuit from sensor 1 of the temperature sensor Sensor is not correctly connected Make sure that the connector is connected to J3 Make sure that the wire is connected to the sensor Damaged wiring and or defective sensor...

Page 80: ...reen LED is off The cables between the potentiostat and the anode s are loose or connected incorrectly The earth connection of the anode s is loose The water heater is not filled with water There is short circuit between the anode s and the tank There is low conductivity of the water Note There is 1 minute delay between detection of the cause and the blinking of the red LED n Make sure that The ca...

Page 81: ...value C 65 65 65 65 65 Hysteresis upwards adjustment range C 2 15 2 15 2 15 2 15 2 15 Hysteresis upwards default value C 10 10 10 10 10 Number of electrical anodes 1 1 2 2 2 Minimum measured air pressure differential across the pressure switch Pa 210 210 460 460 460 Setpoint pressure switch Pa 175 175 400 400 400 Heating time ΔT 45 C min 28 12 160 18 20 160 43 12 200 28 20 200 26 24 245 20 32 245 ...

Page 82: ...d water supply connection female Rp 3 4 Rp 3 4 Rp 1 Rp 1 Rp 1 2 Hot water outlet connection female Rp 3 4 Rp 3 4 Rp 1 Rp 1 Rp 1 3 Gas control valve connection male mm 15 15 15 15 15 4 Drain valve connection female Rp 3 4 Rp 3 4 Rp 3 4 Rp 3 4 Rp 3 4 5 T P valve connection female Rp 3 4 Rp 3 4 Rp 1 Rp 1 Rp 1 Cleaning inspection opening mm 95x70 95x70 95x70 95x70 95x70 7 Condensation drainage connect...

Page 83: ...0312266_INNOVO_UKUK_V5 1 2022 07 12 83 ...

Page 84: ... 9 1 9 1 9 1 9 1 Mass flow rate flue gases nominal load kg h 19 0 31 4 38 4 50 7 Flue gas temperature nominal load ºC 42 61 57 65 Gas category 3P G31 Diameter of the venturi restrictor mm 3 05 3 05 3 05 3 05 Nominal Load gross kW 11 8 19 6 23 9 31 5 Nominal output kW 11 4 12 160 11 6 12 200 18 7 23 0 24 245 23 3 24 285 30 1 32 245 30 4 32 285 30 7 32 380 Supply pressure mbar 37 0 50 0 37 0 50 0 37...

Page 85: ... Daily electricity consumption kWh 0 175 0 181 0 172 0 182 Daily fuel consumption kWh GCV 20 526 19 924 20 661 20 853 Mixed water 40 C V40 l 272 372 772 1111 Additional load profile Load profile XXL Energy efficiency class Energy label A Energy efficiency 90 Daily electricity consumption kWh 0 191 Daily fuel consumption kWh GCV 26 761 Mixed water 40 C V40 l 382 0312266_INNOVO_UKUK_V5 1 2022 07 12 ...

Page 86: ...tricity consumption kWh 0 192 0 207 0 201 0 219 0 204 Daily fuel consumption kWh GCV 26 210 26 414 26 255 26 638 26 748 Mixed water 40 C V40 l 599 682 1976 2282 3372 Additional load profile Load profile 3XL Energy efficiency class Energy label Energy efficiency 92 Daily electricity consumption kWh 0 256 Daily fuel consumption kWh GCV 50 428 Mixed water 40 C V40 l 548 86 Installation Maintenance an...

Page 87: ...13 4 Electrical wiring diagram 0312266_INNOVO_UKUK_V5 1 2022 07 12 87 ...

Page 88: ...lve E External ON mode switch F Additional error signal max 5A G Isolating transformer H Control switch J Display K1 Fan power supply K2 Fan control M Earth connection mounting plate P Earth connection burner flange Q Earth connection housing R1 Temperature sensor 1 R2 Temperature sensor 2 S Pressure switch T Electrical anodes U Potentiostat F1 Fuse T5A 250V 88 Installation Maintenance and Service...

Page 89: ...13 5 Declaration of conformity 0312266_INNOVO_UKUK_V5 1 2022 07 12 89 ...

Page 90: ......

Page 91: ......

Page 92: ... installation The water heater is used exclusively with drinking water which at all times can freely circulate a separately installed heat exchanger is mandatory for heating saline water or corrosive water The tank is safeguarded against harmful scaling and lime build up by means of periodic maintenance The water temperatures in the heater do not exceed the maximum setting of the thermostats which...

Page 93: ...e submitted to the dealer from whom the water heater was purchased or to another authorised dealer for A O Smith Water Products Company products Inspection of the water heater as referred to in Articles 1 and 2 shall take place in one of the laboratories of A O Smith Water Products Company Article 7 Obligations of A O Smith A O Smith grants no other warranty or guarantee over its water heaters nor...

Page 94: ...92 Installation Maintenance and Service part ...

Page 95: ...5 Descale the tank 64 Dimensions 82 Displayed errors 74 Disposal 34 Document identification 8 Draining 55 E Electrical connections 48 Electrical wiring diagram 87 Energy labeling 85 Environmental aspects 34 Error conditions 22 Error history 62 Errors and warnings 71 External ON mode 22 External ON mode switch 50 F Fan 35 Filling 52 Finalization 51 68 G Gas connection 41 Gas details 84 Gas supply p...

Page 96: ...ter temperature 25 Settings 59 Status of the water heater 21 Structure of the water heater 35 Switch to ON mode 25 T Tank 35 Target group 7 Technical details 81 Test cycle 62 Trademark 3 Trademarks 3 Troubleshooting 71 Turn off for a long period 26 Turn off for a short period 25 Turn off the water heater 25 55 Turn on the water heater 55 U Use 25 User part 13 V Venting system 41 W Warnings 80 Warr...

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