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Working principle of the appliance

14

Instruction manual ADMR

2

gis

2.5.3

T&P valve

A T&P valve is only mandatory in an unvented installation. However, A.O. Smith
also recommends the use of a T&P valve in vented installations.
A T&P (Temperature and Pressure Relief) valve monitors the pressure in the
tank and the water temperature at the top of the tank. If the pressure in the tank
becomes excessive (> 10 bar) or the water temperature is too high (> 97 °C),
the valve will open. The hot water can now flow out of the tank. Because the
appliance is under water supply pressure, cold water will automatically flow into
the tank. The valve remains open until the unsafe situation has been rectified.
The appliance is fitted standard with a connecting point for a T&P
valve (3.7.3 "Hot water side").

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Содержание ADMR - 40

Страница 1: ...0311797 Innovation has a name RESET ENTER 0063 ADMR Installation User and Service Manual Commercial Atmospheric Water Heater ADMR 40 50 60 80 90 115 135 0216 Changes Reserved ...

Страница 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 your installer ...

Страница 3: ...ther than that stated in this manual and in accordance with the General Conditions registered at the Eindhoven Chamber of Commerce Refer further to the General Conditions These are available on request free of charge Although considerable care has been taken to ensure a correct and suitably comprehensive description of all relevant components the manual may nonetheless contain errors and inaccurac...

Страница 4: ...4 Instruction manual ADMR gis ...

Страница 5: ...22 3 6 Water connections Vented 23 3 7 Water connections Unvented 24 3 8 Gas connection 25 3 9 Chimney flue 26 3 10 Electrical connection 29 3 11 Checking the supply pressure and burner pressure 33 4 Conversion to a different gas category 37 4 1 Conversion to different category ADMR 40 through 115 38 4 2 Conversion to a different gas category ADMR 135 40 5 Filling 43 5 1 Filling the appliance 43 6...

Страница 6: ...ected appliance 64 12 6 Switching the pump on or off 64 12 7 Setting the service interval 64 12 8 Setting the display contrast 64 12 9 Setting the display backlight time 64 12 10 Setting the display scroll speed 64 13 Troubleshooting 65 13 1 Introduction 65 13 2 Troubleshooting table for general errors 66 13 3 Troubleshooting table for displayed errors 68 14 Maintenance frequency 77 14 1 Introduct...

Страница 7: ...ipment or switch i e no telephones plugs or bells Open windows and doors Shut off the mains gas supply valve Warn occupants and leave the building After leaving the building alert the gas distribution company or your installation engineer 1 3 Regulations As the end user installation engineer or service and maintenance engineer you must ensure that the entire installation complies as a minimum with...

Страница 8: ...nce engineer to check the appliance on both the water and gas side within three months following installation Based on this check the best maintenance frequency can be determined Note Regular maintenance extends the service life of the appliance Note Both the end user and the service and maintenance engineer are responsible for regular maintenance They will need to establish clear agreements on th...

Страница 9: ...y This is the actual menu for the user however the installation engineer and service and maintenance engineers will also need to use this menu Service program This chapter describes the service menu It is mainly intended for the installation engineer and service and maintenance engineers End users may also refer to this chapter for additional information about the appliance Troubleshooting This ch...

Страница 10: ...Introduction 10 Instruction manual ADMR 1 gis ...

Страница 11: ... appliance Legend Only applicable numbers are mentioned 2 hot water outlet 4 ThermoControl electronic controller 7 temperature sensor T1 8 combustion chamber 9 anode 10 tank 11 heat exchanger 12 inspection and cleaning opening 13 temperature sensor T2 14 cold water inlet 15 drain valve 16 gas control 20 hot surface igniter 21 flame probe 22 chimney flue 24 insulation layer 32 flue damper 33 draugh...

Страница 12: ...n the draught diverter The flue damper opens before the burner tray ignites and closes as soon as the flame is extinguished A radiation shield condensation tray 35 is mounted below the burner tray This prevents overheating of the floor area below the appliance as well as serving as a collection tray for condensation water The insulation layer 24 prevents heat loss The inside of the tank is enamell...

Страница 13: ...enamelled coating in the appliance or to the tank A non return valve prevents excessive pressure buildup in the water supply system This valve also prevents water from flowing backwards from the tank into the cold water supply system The pressure reducing valve protects the installation against an excessively high water supply pressure 8 bar These components are fitted to the cold water pipe 3 6 W...

Страница 14: ...ure in the tank and the water temperature at the top of the tank If the pressure in the tank becomes excessive 10 bar or the water temperature is too high 97 C the valve will open The hot water can now flow out of the tank Because the appliance is under water supply pressure cold water will automatically flow into the tank The valve remains open until the unsafe situation has been rectified The ap...

Страница 15: ...ersion 4 Conversion to a different gas category 3 2 Packaging To avoid damaging the appliance remove the packaging carefully We recommend unpacking the appliance at or near its intended location Caution The appliance may only be manoeuvred in an upright position Take care that the appliance is not damaged after unpacking The packaging prevents damage to the appliance during transport The packaging...

Страница 16: ...ater The drinking water must comply with the regulations governing drinking water for human consumption The table gives an overview of the specifications Water specifications Note If the water specifications deviate from those stated in the table then the tank protection cannot be guaranteed 16 Warranty certificate Air humidity and ambient temperature Air humidity max 93 RV at 25 C Ambient tempera...

Страница 17: ...able clearance is less than 100 cm flexible magnesium anodes may be ordered Note When installing the appliance be aware that any leakage from the tank and or connections can cause damage to the immediate environment or floors below the level of the boiler room If this is the case the appliance should be installed above a wastewater drain or in a suitable metal leak tray The leak tray must have an ...

Страница 18: ... dimensions 3 4 1 Dimensions of the appliance gas data 3 4 3 Gas data and other specifications 3 4 2 General and electrical specifications of any accessories you plan to use 3 4 1 Dimensions of the appliance Plan and elevation of the appliance Legend See the table 10º 37º 45º F E A D H G B M R K P S N J 6 1 3 4 6 2 5 IMD 0135 R2 ...

Страница 19: ...0 205 M Height of cold water supply mm 565 565 565 565 575 650 650 N Height of hot water outlet mm 1605 1810 1605 1810 1640 1715 1715 P Height of cleaning opening mm 730 730 730 730 740 825 855 R Height of drain valve connection mm 500 515 500 515 525 600 595 S Height of T P valve connection mm 1550 1760 1550 1760 1595 1660 1660 1 Cold water supply connection male R11 2 R11 2 R11 2 R11 2 R11 2 R11...

Страница 20: ... VAC volts 230 230 230 230 230 230 230 Mains frequency Hz 1Hz 50 50 50 50 50 50 50 IP class 30 30 30 30 30 30 30 DESCRIPTION Unit ADMR 40 ADMR 50 ADMR 60 ADMR 80 ADMR 90 ADMR 115 ADMR 135 Load Profile XXL XXL XXL XXL 3XL 3XL 3XL Energy Efficiency Class Energy Label B B B B Energy Efficiency 62 62 61 61 58 57 60 Daily Electricity Consumption kWh 0 165 0 165 0 165 0 165 0 165 1 376 1 423 Daily Fuel ...

Страница 21: ...e diameter mm 1 70 1 70 1 70 1 50 1 70 1 70 2 25 1 Blank plate 2 Burner pressure regulator 3 High low control 1 2 or 3 1 1 1 1 1 1 3 Gas category G30 30 mbar Nominal load gross calorific value kW 41 6 55 3 68 2 80 7 96 1 123 5 138 4 Nominal output kW 32 6 42 8 52 8 62 6 74 5 95 8 108 5 Supply pressure mbar 30 30 30 30 30 30 30 Burner pressure mbar Gas consumption kg h 3 0 4 0 5 0 5 9 7 0 9 0 10 1 ...

Страница 22: ...lation pump optional 7 top to bottom circulation pump optional 9 drain valve 10 manual gas valve mandatory 11 service stop valve mandatory 12 temperature gauge recommended 14 hot water draw off points 15 expansion valve mandatory 16 expansion vessel mandatory 17 3 way aeration valve recommended 18 water tank 19 float valve A cold water supply B hot water supply C circulation pipe D gas supply E ov...

Страница 23: ...on pipe Ø 22 mm a stop valve 11 and a top to bottom circulation pump 7 2 Fit a non return valve 5 3 Fit a stop valve 11 3 6 3 Hot water side See B in the installation diagram 3 5 Installation diagram Note Insulating long hot water pipes prevents unnecessary energy loss 1 Fit the T P valve 3 2 Optional fit a temperature gauge 12 so you can check the temperature of the tap water 3 Fit a stop valve 4...

Страница 24: ...diagram 3 5 Installation diagram 1 Fit an approved stop valve 4 on the cold water side as required by applicable regulations 1 3 Regulations 2 The maximum working pressure of the appliance is 8 bar Because the pressure in the water pipe at times can exceed 8 bar you must fit an approved pressure reducing valve 1 3 Fit a non return valve 5 and an expansion vessel 16 4 Fit an expansion valve 15 and ...

Страница 25: ...eturn valve 5 behind the circulation pump to guarantee the direction of circulation 3 Fit two stop valves for service purposes 4 4 Connect the circulation pipe to the T piece at the drain valve 9 as shown in the drain valve figure 3 6 4 Drain valve 3 8 Gas connection Warning The installation should be carried out by an authorised installation engineer in compliance with general and local regulatio...

Страница 26: ... Fitting the draught diverter The draught diverter can be positioned according to preference Once it is positioned the draught diverter is secured to the top of the appliance using two screws 6 while it is also supported on a mounting bracket 1 attached to the side of the appliance The mounting bracket parts can be found in the plastic bag attached behind the control column The assembly procedure ...

Страница 27: ...ring 5 on the appliance 9 Screw the draught diverter tightly in place 10 Fit a 45 bend 7 onto the outlet of the draught diverter followed by a corrosion resistant vertical chimney pipe 8 of at least 0 5 metre length the remaining flue components Note Use flue components that comply with the regulations 1 3 Regulations Note Make sure that the chimney flue discharges into an area approved for this t...

Страница 28: ...er in either the left or the right hand side of the draught diverter Flue damper 1 Take the flue damper 1 out of the packaging 2 There are two cover plates on the draught diverter one on each side Unscrew these 3 Fit the mounting plate 2 with shaft hole supplied with the flue damper on one side of the draught diverter 4 Slide the flue damper as shown in the figure into the other opening in Note Se...

Страница 29: ...allation should be carried out by an authorised installation engineer in compliance with general and local regulations 1 3 Regulations 3 10 1 Introduction Topics covered in this paragraph Preparation Connecting the mains power Connecting flue damper Optionally it is possible to connect an isolating transformer a continuous pump a program controlled pump an extra ON mode switch and an extra alarm s...

Страница 30: ...ecting an isolating transformer For more information or to order this isolating transformer please contact A O Smith Water Products Company The figure shows a view of the terminal blocks and the table explains the relevant connections Terminal blocks In preparation you must first remove the protective cover from the control 1 Undo the 4 screws A and remove the protective cover B from the electrica...

Страница 31: ...power cable through the metric strain relief to the top side of the control column 2 Connect the earth live L1 and neutral N of the power cable to terminals 1 through 3 in the connector block as stated in the table 3 Turn the strain relief tight to clamp the lead 4 If you do not need to make any more connections fit the protective cover onto the control column 5 Connect the power cable to the isol...

Страница 32: ...f in the top of the control column 2 Connect earth live L1 and neutral N to terminals 7 8 and 9 as indicated in the terminal block connections table 3 10 2 Preparation 3 Turn the strain relief tight to clamp the lead 4 If you do not need to make any more connections fit the protective cover onto the control column 3 10 7 Connecting top to bottom circulation pump The top to bottom circulation pump ...

Страница 33: ...ain relief tight to clamp the lead 5 If you do not need to make any more connections fit the protective cover onto the control column 3 11 Checking the supply pressure and burner pressure Note Before starting the appliance and or checking the supply pressure and burner pressure you must fill 5 Filling the appliance Caution Before starting up for the first time or after conversion you must always c...

Страница 34: ...ly loosen them they can be difficult to re tighten 3 Connect a pressure gauge to the manifold test nipple 8 4 Open the gas supply and bleed the air from the mains gas supply via test nipple 6 5 Connect a pressure gauge to the manifold test nipple 6 when gas starts to flow from this nipple 6 Switch on the power to the appliance using the isolator on the appliance 7 Switch the electronic controller ...

Страница 35: ...sure gauge to read the supply pressure at test nipple 6 Refer to the gas data table 3 4 3 Gas data Note Consult the mains gas supply company if the supply pressure is not correct 11 Use the pressure gauge to read the burner pressure at nipple 8 Refer to the gas data table 3 4 3 Gas data Note If the burner pressure is incorrect and the appliance is fitted with a blank plate or high low control then...

Страница 36: ...t pressure is reached 5 Fit the cap 2 back on the burner pressure regulator 6 Activate the OFF mode of the electronic controller 7 If the MENU is not displayed press Use and to place the cursor beside OFF Confirm with 8 Turn off the electronic controller 3 11 3 Finalize 1 Shut off the gas supply 2 Disconnect the two pressure gauges and retighten the sealing screws in the test nipples 3 Replace the...

Страница 37: ...hat for which the appliance has been set at the factory the appliance will have be adapted using a special conversion kit Caution You must check the supply pressure and burner pressure once the conversion is complete This chapter covers the following Conversion to different category ADMR 40 through 115 Conversion to a different gas category ADMR 135 Exchanging orifices Legend 1 cover plate 2 retai...

Страница 38: ...ed to simplify disassembly of the burner 5 Remove the burners one by one from their brackets at the front To do this you first move them away from you and then downwards The orifices will now be accessible 6 Remove the orifices 7 Select and fit the correct orifices from the conversion kit based on the gas data table 3 4 3 Gas data The orifice diameter is stamped on the orifice itself see 3 8 Re fi...

Страница 39: ... If the blank plate or burner pressure regulator need to be replaced Unscrew the connector 4 of the gas control If necessary remove the blank plate or burner pressure regulator 5 or burner pressure regulator 1 If necessary fit the blank plate or burner pressure regulator supplied with the conversion kit Fit the connector 4 of the gas control 13 Check the supply pressure and burner pressure 3 11 Ch...

Страница 40: ...erent gas category ADMR 135 4 2 1 Introduction This paragraph describes Conversion from LP gas to natural gas Conversion from natural gas to LP gas Conversion of gas control Legend Only applicable numbers are mentioned 1 burner pressure regulator 7 gas control 9 high low control 1 9 7 IMD 0132 R1 ...

Страница 41: ...o natural gas Installing and removing add on components Legend Only applicable numbers are mentioned 4 timers 5 bracket 6 6 contact terminal strip 7 pull reliefs 8 9 contact terminal strip 9 metric pull relief 10 high low control lead 4 9 7 5 10 6 8 IMD 0130 R1 ...

Страница 42: ...appliance may no longer be run on the gas for which it was originally supplied 12 Start the appliance 9 1 Starting and running 4 2 3 Conversion from natural gas to LP gas 1 Carry out steps 1 through 9 4 1 Conversion to different category ADMR 40 through 115 2 Detach the burner pressure regulator 1 3 Fit the high low controller 9 including the sealing gasket from the conversion set Attach the high ...

Страница 43: ... water coming out of the expansion valve 15 or out of the T valve 3 If there is the cause might be The T P valve is defective or incorrectly fitted The water supply pressure is greater than the specified 8 bar Rectify this by fitting a pressure reducing valve 1 The expansion valve in the protected cold supply setup is defective or incorrectly fitted Legend Only applicable numbers are mentioned 1 p...

Страница 44: ... by opening all draw off points 7 The appliance is now under water supply pressure There should be no water coming out of the T P valve 3 If this does happen the T P valve might be defective or incorrectly fitted Legend Only applicable numbers are mentioned 3 T P valve 4 stop valve recommended 5 non return valve mandatory 6 circulation pump optional 7 top to bottom circulation pump optional 9 drai...

Страница 45: ...the hot water pipe 8 Close the supply valve 4 in the cold water supply A 9 Open the drain valve 9 10 Bleed the appliance or installation so that it drains completely Legend Only applicable numbers are mentioned 1 pressure reducing valve mandatory 3 T P valve 4 stop valve recommended 5 non return valve mandatory 6 circulation pump optional 7 top to bottom circulation pump optional 9 drain valve 10 ...

Страница 46: ...pe 8 Close the stop valve 4 between the water tank and the cold water inlet A 9 Open the drain valve 9 10 Bleed the appliance or installation so that it drains completely Legend Only applicable numbers are mentioned 3 T P valve 4 stop valve recommended 5 non return valve mandatory 6 circulation pump optional 7 top to bottom circulation pump optional 9 drain valve 10 manual gas valve mandatory 11 s...

Страница 47: ...the figure both with and without icons 7 3 Explanation of icons The table explains the meanings of the icons Icons and their meaning 7 4 Electronic controller ON OFF switch The ON OFF switch of the electronic controller is used to switch the appliance ON and OFF Note that in the OFF position the appliance remains electrically live in order for the continuous pump to stay running After switching on...

Страница 48: ...e main menu The main menu comprises OFF ON WEEK PROGRAM EXTRA PERIOD and SETTINGS You have to scroll down further to see the options EXTRA PERIOD and SETTINGS The selected option is confirmed using Pressing the button takes you back one page in a menu and discards all options selected in the current menu Note The button is also used to reset the appliance following an error 7 6 PC connection The P...

Страница 49: ...alternately 2 3 The appliance s heating cycle T1 and Tnet line three the programmed water temperature Tset line four blank when the appliance is idle or depending on the heating cycle 2 3 The appliance s heating cycle displays a text such as HEAT DEMAND 8 2 3 EXTRA In this mode one extra period is programmed and activated In this mode the OFF orPROG mode is temporarily overruled to fulfil a single...

Страница 50: ... code comprising a letter and two digits followed by the error description lines two to four alternately a brief explanation of the error and a brief action to resolve the error CautionThe displayed action to resolve the error may only be performed by a service and maintenance engineer There are various types of errors LOCK OUT ERRORS When the cause has been removed these errors require a reset wi...

Страница 51: ...erature Tnet falls below the threshold value Tset This threshold value depends on the currently selected appliance operating mode For example if the appliance is in OFF mode frost protection then this value is 5 C If the appliance is in ON mode then this threshold value is selectable for example 65 C The heating cycle runs in turn through the following states 1 HEAT DEMAND 2 WAITING TIME 3 FLUE DA...

Страница 52: ...on is dimmed The icon is activated The message RUNNING appears 7 When the water reaches the set temperature the demand ceases The flue damper and gas control both close and the burner tray is extinguished A new waiting time of about 10 seconds starts The icons and are dimmed The icon is activated The message WAITING TIME appears 8 After the waiting time the appliance enters an idle state The icon ...

Страница 53: ...fan stops purging can cause damage to the appliance 4 Wait until the fan has stopped The symbol is then dimmed 5 Switch the appliance OFF position 0 using the ON OFF switch on the control panel 6 Isolate the appliance from the power supply by setting the isolator between the appliance and the mains power supply to position 0 10 4 Shutting the appliance down for a long period Drain the appliance if...

Страница 54: ...Shutting down 54 Instruction manual ADMR 10 gis ...

Страница 55: ... decrease the value Confirm with After confirming the appliance enters ONmode Note If the preset temperature is higher than the current water temperature then the appliance might not immediately start the heating cycle To prevent excessively frequent switching on and off there is a heating margin The standard setting for this margin is 4 C The appliance starts heating when the water temperature is...

Страница 56: ... Note The switch off time must always be followed by a switch off time on the same day of the week A maximum of three periods may be programmed per day You can program a maximum of 21 periods Call up the menu for the week program as follows WEEK PROGRAM PROGRAM OVERVIEW Confirm with The display shows the menu for the week program see the figure below With the default setting the program switches o...

Страница 57: ...e pump ensures a regular circulation of hot water in the hot water pipes You can skip this step if you there is no pump in your hot water circuit Confirm with The cursor moves to SAVE 2 Confirm with The display shown in the figure will appear 3 If you wish you can use to scroll to another day and change more switch on times Week program setting the switch on time and switch off times Week program ...

Страница 58: ...ly in the display Assume that the switch on off times for the appliance are programmed as in the figure To delete a period proceed as follows 1 WEEK PROGRAM PROGRAM OVERVIEW Confirm with 2 Scroll with to PROGRAM OVERVIEW Confirm with The display shows the menu for the week program 3 Scroll with to DELETE Confirm with To warn you that you are now working in the delete sub menu the cursor is replace...

Страница 59: ...od 11 5 1 Programming an extra period 1 Call up the menu for entering an extra period via 2 EXTRA PERIOD Confirm with The display show the settings for the extra period Setting the switch on time 1 Use and to set the day In the example this is SU Confirm with The cursor moves to the hour digits which flash 2 Use and to set the switch on hour to the desired value In the example this is 08 Confirm w...

Страница 60: ...he extra period will NOT be automatically switched on 11 6 Settings Using the SETTINGS option you can adjust certain settings and read certain appliance data Adjustable settings Language of the menu Current day of week and time Displayable appliance specifications this category is only relevant to the installation engineer and or service and maintenance engineer Control range water temperature Ign...

Страница 61: ...light saving 11 6 3 Displaying appliance specifications Note This category is solely intended for the installation engineer and or service and maintenance engineer The table shows the standard settings for the appliance specifications Appliance specifications Call up the menu to display the appliance specifications as follows 1 SETTINGS Confirm with 2 Scroll with to SPECIFICATIONS Confirm with The...

Страница 62: ...Main menu 62 Instruction manual ADMR 11 gis ...

Страница 63: ...in We refer to this margin as the hysteresis The standard setting for this margin is 2 C The heating cycle starts if the water temperature drops to 2 C below the SETPOINT and ends when the water reaches 2 C above the SETPOINT Set the hysteresis via HYSTERESE UP The figure shows an example Set the hysteresis via HYSTERESE DOWN 12 3 Displaying the error history Display the error history as follows H...

Страница 64: ...rvice interval To aid servicing the electronic controller includes a service interval which is used to set the frequency of maintenance interval 14 2 Determining service interval by the service and maintenance engineer based on the number of burning hours The service interval is based on the number of burning hours This can be set to 500 1000 and 1500 hours The standard setting for number of hours...

Страница 65: ...three and four a long description alternating with a recommended action See the figures The first shows a possible error the second shows the appropriate checking action There are various types of errors all falling into one of two groups LOCK OUT ERRORS When the cause has been removed these errors require a reset with the button before the appliance can resume operation BLOCKING ERRORS These erro...

Страница 66: ...Check whether the ON OFF switch of the electronic controller is ON position I 4 Check whether there is power to the electrical connector block 5 The measured voltage must be 230 VAC 15 10 See the ADMR electrical diagram 17 Appendices If the error persists consult your installation engineer Defective fuse s Replace fuse s To replace the fuses you must contact your installation engineer Water leakag...

Страница 67: ...ing No supply voltage present 1 Check if the isolator is ON 2 Check that there is power to the isolator 3 Check whether the ON OFF switch of the electronic controller is ON position I 4 Check whether there is power to the electrical connector block 5 The measured voltage must be 230 VAC 15 10 See the ADMR electrical diagram 17 Appendices If the error persists consult your installation engineer Hot...

Страница 68: ...1 of temperature sensor T1 at the top of the tank 1 Sensor is not correctly connected Connect the sensor lead to JP5 See the ADMR electrical diagram 17 Appendices Defective sensor Replace sensor T1 To replace the necessary parts you must contact your installation engineer Damaged wiring 1 Measure the wire resistance of the sensor lead This must be 0 Ohm 2 Replace any damaged leads S03 blocking err...

Страница 69: ...nsor T2 To replace the necessary parts you must contact your installation engineer Damaged wiring 1 Measure the wire resistance of the sensor lead This must be 0 Ohm 2 Replace any damaged leads To replace the necessary parts you must contact your installation engineer S11 blocking error Short circuit in the temp sensor T2 at the bottom of the tank Short circuit in sensor circuit Replace sensor T2 ...

Страница 70: ...cted wrong way round Connect live and neutral correctly 3 10 Electrical connection the appliance is phase sensitive See the ADMR electrical diagram 17 Appendices Condensation on the flame probe 1 Disconnect the lead at the flame probe 2 Ignite the appliance three times with an interrupted ionisation circuit 3 Reconnect the ionisation lead to the flame probe 4 Ignite the appliance again 5 The repea...

Страница 71: ...ce across the hot surface igniter This must lie between 2 and 5 ohms 4 Check that the hot surface igniter lights up during ignition 5 If necessary replace the hot surface igniter If the error persists contact your installation engineer To replace the necessary parts you must contact your installation engineer Defect in the ionisation circuit 1 Check that the flame probe is correctly connected JP2 ...

Страница 72: ...ctronic controller If the error cannot be resolved or is persistent contact your installation engineer To replace the necessary parts you must contact your installation engineer F09 lock out error Water temperature safety The temperature at the top of the tank exceeds 93 C 1 Check that the circulation pump if present is working 2 Check the position of the temperature sensor T1 3 Reset appliance co...

Страница 73: ...3 lock out error Flue damper not driven by the motor The motor fails to open the flue damper See F10 If the error cannot be resolved or is persistent contact your installation engineer F14 lock out error The microswitch fails to monitor the position of the flue damper The microswitch fails to detect the position of the flue damper 1 Check that the red arrow on the motor goes fully to the right and...

Страница 74: ...ror Safety relay error Ignition relay error RAM error EEPROM error EEPROM contents do not match the software version C03 blocking error Reset error Too many resets in too short a period Wait for the error to disappear maximum 1 hour If the error does not disappear replace the appliance controller To replace the necessary parts you must contact your installation engineer C04 blocking error Applianc...

Страница 75: ... the electronic controller Replace the sensor if the error persists To replace the necessary parts you must contact your installation engineer E04 lock out error Error in dummy sensor 2 The two dummy sensors in the tank detect a differential of 10 C over a period of at least 60 seconds 1 Check leads from dummy 1 and dummy 2 2 If necessary reset the electronic controller Replace the dummy sensor if...

Страница 76: ...is Instruction manual ADMR 76 ...

Страница 77: ...al can be set to 500 1000 or 1500 burning hours The standard setting is 500 burning hours Example In the first three months the appliance has burnt 300 hours During maintenance it is evident that one service per year will be sufficient Therefore after one year some 1200 burning hours will have elapsed The first value below 1200 hours that can be selected is 1000 burning hours In this case the serv...

Страница 78: ...Maintenance frequency 78 Instruction manual ADMR 14 is ...

Страница 79: ...d model and the full serial number of the appliance These details can be found on the rating plate Only by ordering with this information can you be sure to receive the correct spare parts 15 2 Preparation for maintenance To test whether all components are still working properly complete the following steps 1 Activate the MENU with 2 Use and to place the cursor beside OFF 3 Confirm OFF with 4 Swit...

Страница 80: ... overflow valve of the protected cold supply setup The water should spurt out 13 Test the overflow operation of the T P valve The water should spurt out 14 Check the drainpipes from the discharge points of all valves and remove any scale deposits that may be present 15 Drain the appliance 6 Draining 15 3 Water side maintenance 15 3 1 Introduction The following steps must be carried out on the wate...

Страница 81: ...ater Periodic cleaning and descaling prevents buildup of these deposits This increases the service life of the appliance and also improves the heating process Take the rate of scale formation into account when deciding on maintenance frequency Scale formation depends on the local water composition the water consumption and the water temperature setting A water temperature setting of maximum 60 C i...

Страница 82: ...hould be torqued down in the sequence shown in the figure 15 3 4 Clean the orifice s 1 Detach the orifice s 2 Remove all contamination present in the orifice s 3 Fit the orifice s 15 4 Gas side maintenance 15 4 1 Introduction The following steps must be carried out on the gas side 1 Clean the burner s 2 Clean the orifice s 3 Checking the flue baffles 15 4 2 Clean the burner s 1 Detach the burner s...

Страница 83: ...g this if necessary 3 Check the flue baffles for wear and replace the flue baffles if necessary 4 Place a new sealing ring on the rim of the tank and re fit the lid 5 Fit the draught diverter 3 9 2 Fitting the draught diverter 6 Fit the flue damper 3 9 3 Fitting the flue damper 7 Fit the flue gas sensor 3 9 4 Fitting the flue gas sensor 8 Re fit the protective cover 15 5 Finalizing maintenance To ...

Страница 84: ...Performing maintenance 84 Instruction manual ADMR 15 s ...

Страница 85: ...y set out in article 1 and 2 will apply solely under the following conditions a The water heater is installed under strict adherence to A O Smith installation instructions for the specific model and the relevant government and local authority installation and building codes rules and regulations in force at the time of installation b The water heater remains installed at the original site of insta...

Страница 86: ...warranty do not extend beyond free delivery from the Veldhoven warehouse of the replacement sections parts or water heater respectively Shipping labour installation and any other costs associated with the replacement will not be accepted by A O Smith 16 6 Claims A claim on grounds of the specified warranty must be submitted to the dealer from whom the water heater was purchased or to another autho...

Страница 87: ...Instruction manual ADMR 87 is 17 Appendices 17 1 Introduction This appendix contains Electrical diagrams ADMR 17 2 Electrical Diagrams ADMR Week program card ...

Страница 88: ...ction manual ADMR 17 is 17 2 Electrical Diagrams ADMR 17 2 1 Electrical Diagram ADMR 40 through 115 and 135 natural gas ADMR 40 through 115 LP gas 1 brown 2 blue 3 yellow green 4 black 5 white 6 grey beige 7 green 8 yellow ...

Страница 89: ...s pump J Flue damper K Isolating transformer L Controller 0 I switch M Display N Extra ON mode switch O Connection for flue gas sensor P Temperature sensor T2 bottom of tank Q Temperature sensor T1 top of tank R Selection resistor CONTROLLER CONNECTIONS J2 Power connection for controller J19 Extra error signal connection and power to flue damper J20 Gas control connection J21 Program controlled pu...

Страница 90: ...Appendices 90 Instruction manual ADMR 17 is 17 2 2 Electrical Diagram ADMR 135 LP gas 1 brown 2 blue 3 yellow green 4 black 5 white 6 grey beige 7 green 8 yellow ...

Страница 91: ...mp K Continuous pump L Flue damper M Isolating transformer N Controller I O switch O Display P Extra ON mode switch Q Connection for flue gas sensor R Temperature sensor T2 bottom of tank S Temperature sensor T1 top of tank T Selection resistor CONTROLLER CONNECTIONS J2 Power connection for controller J19 Extra error signal connection and power to flue damper J20 Gas control connection J21 Program...

Страница 92: ...Appendices 92 Instruction manual ADMR 17 is ...

Страница 93: ... OFF OFF 5 ON C ON OFF OFF 6 ON C ON OFF OFF 7 ON C ON OFF OFF 8 ON C ON OFF OFF 9 ON C ON OFF OFF 10 ON C ON OFF OFF 11 ON C ON OFF OFF Period DAY TIME Tset Pump 1 ON MO 14 30 70 C ON OFF OFF MO 16 15 Period DAY TIME Tset Pump 12 ON C ON OFF OFF 13 ON C ON OFF OFF 14 ON C ON OFF OFF 15 ON C ON OFF OFF 16 ON C ON OFF OFF 17 ON C ON OFF OFF 18 ON C ON OFF OFF 19 ON C ON OFF OFF 20 ON C ON OFF OFF 2...

Страница 94: ...Instruction manual ADMR 94 ...

Страница 95: ...al connector block 30 environmental conditions 15 error 50 extra period 49 operating mode 49 settings 59 F filling 43 flame probe 13 forms of notation 8 frost protection 49 G gas category conversion to different 37 gas connection 25 general specifications 3 H heating cycle 12 humidity 16 hysteresis setting 63 I installation engineer 8 isolator 31 L language setting 60 liability 3 M mains power 31 ...

Страница 96: ... shunt pump 23 24 specifications 18 starting up 51 supply pressure 33 symbol installation engineer 8 service engineer 8 user 8 T target groups 8 temperature sensor T1 12 T2 12 ThermoControl ON OFF switch 47 Tnet 12 to shut down electrically isolating 53 longer period 53 short period 53 trademarks 3 U user 8 W warranty 85 exclusions 86 general 85 installation and conditions of use 85 scope 86 water...

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