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INSTALLATION- AND USER

INSTRUCTIONS

HOT WATER STORAGE HEATERS

UNITED KINGDOM / IRELAND

MODELS

115 G

155 G

EQH 200 G

Содержание EQ 115

Страница 1: ...INSTALLATION AND USER INSTRUCTIONS HOTWATERSTORAGEHEATERS UNITEDKINGDOM IRELAND MODELS EQ 115 G EQ 155 G EQH 200 G ...

Страница 2: ... and or bodily harm Installation and commissioning should be carried out by a qualified competent installer The type of gas and the value at which the appliance is set standard in the factory are registered on the rating plate The appliance may only be installed in a room if this room meets the ventilation requirements A O SMITHACCEPTSNORESPONSIBILITYFORWARRANTY SERVICEAND OR PRODUCTLIABILITYINCAS...

Страница 3: ...ustment 15 2 4 Putting out of operation 15 2 5 Temperature regulation 16 2 6 Setting the nominal heat input 17 2 7 Conversion to another type of gas 17 2 8 Maintenance 19 2 8 1 Sacrificial anode 19 2 8 2 Cleaning 20 2 8 3 Inspection of the internal waterside surfaces 20 2 8 4 Spare parts 20 2 9 Inletcombination 20 2 10 Fault finding 21 2 10 1 Safety thermostat 21 2 10 2 Flue down draught safety de...

Страница 4: ...ssary heat loss When the appliance is filled with water it continuously is under water pressure As hot water is drained from the tank cold water is added immediately A flue baffle has been placed in the flue tube to improve heat transfer The flue gasses pass their heat on to the water by means of radiation and convection The flue gasses are guided to the chimney via the draught diverter The exhaus...

Страница 5: ... Hot water outlet 3 Insulation 4 Flue tube 5 Glass lined tank 6 Gas control valve 7 Cold water inlet 8 T P valve connection 9 Outer casting 10 Flue baffle 11 Sacrificial anode 12 Drain valve 13 Atmospheric burner 14 Pilot light burner with thermocouple AOS 0478 ...

Страница 6: ... helix coil which is connected to the lower edge of the draught diverter The helix coil has been connected to the thermostat by means of a capillary tube The wiring that is connected to the thermostat must be connected to the thermocouple It is the aim of the T R S to prevent flue gasses from the water heater entering the room where the water heater has been placed instead of passing through the f...

Страница 7: ...ck with T R S 1 T R S thermostat 2 Sensor combustion products dicharge safety device 3 Thermocouple with built in interrupter 4 Thermocouple 5 Gas control block 6 Reset button 7 Pilot burner 8 Temperature regulator knob AOS 0479 ...

Страница 8: ...ensions EQ 115 EQ 155 EQH200 A 1280 1370 1670 B 1120 1210 1540 D 465 515 515 F 545 595 605 G 80 80 100 K 325 325 380 L 270 295 395 M 1180 1270 1590 N 1180 1270 1590 R 230 230 255 S 945 1030 1380 V 205 205 205 1 Cold water inlet 2 Hot water outlet 3 Gas control valve 4 Drain valve 5 T P valve tapping All dimensions are given in mm rounded off on 5 mm ...

Страница 9: ...9 Figure 3 Dimensions AOS 0481 ...

Страница 10: ...3 50 Diameterpilotorifice mm 2x0 27 2x0 27 2x0 27 Heating time T 44 K min 45 49 40 DATABUTANEG30 28 30mbar Nominalload gross kW 10 1 12 2 17 6 Supplypressure mbar 30 30 30 Burnerpressure mbar 30 30 30 Gasconsumption kg h 0 7 0 9 1 3 Diametermainorifice mm 1 40 1 50 1 95 Diameterpilotorifice mm 0 22 0 22 0 22 DATAPROPANEG31 37mbar Nominalload gross kW 9 8 11 8 17 2 Supplypressure mbar 37 37 37 Burn...

Страница 11: ... following British standards 5440 5546 6644 6700 6798 and 6891 Some chemicals produce vapours which can cause rapid failure of thermocouples burners and storage tanks if they are drawn into the combustion air supply Therefore if this water heater will be used to supply hot water to hairdressers dry cleaners industrial degreasing processes or any other area where compounds containing halogens are u...

Страница 12: ...ain valve Figure 4 Connection diagram unvented system 8 Pressure limiting valve 9 Expansion valve A Gas supply B Hot water delivery C Cold water inlet D Hot water taps E Return circulation See Figure 4 A O Smith water heaters are tested to a maximum pressure of 12 bar and a maximum working pressure of 8 bar AOS 0581 ...

Страница 13: ...nal to BS 5440 part I If the flue passes through any combustible material measures must be taken to protect against the possibility of fire All flues must terminate in free air space approx 1 5 metres from any vertical surface of structure i e chimney stacks roof parapets etc If an existing chimney or flue is to be used this should be swept clean and be free of debris before an approved liner is i...

Страница 14: ... and press the piezo ignitor several times until the pilot burns see Figure 6 Figure 6 Operation of the gas control block 5 Keep the control button pushed in for approximately 20 seconds After releasing the button the pilot should remain burning If the pilot extinguishes you should wait 5 minutes before repeating the ignition procedure The size of the pilot flame can be adjusted see also Pilot adj...

Страница 15: ...the edge of the burner chamber 2 3 Pilot adjustment The pilot can be adjusted by means of the regulating screw under the plastic cover on the right hand side of the gas control block Turn the screw clockwise to reduce the gas pressure and anti clockwise to increase the pressure Care should be taken to ensure the pilot covers the thermocouple element correctly 2 4 Putting out of operation 1 For sho...

Страница 16: ...he gas supply The main burner will ignite as soon as a reduction in water temperature is sensed by the thermostat The main burner will shut down as soon as the preset temperature is achieved Position 1 approximately 30 C Position 2 approximately 40 C Position 3 approximately 50 C Position 4 approximately 60 C Position 5 approximately 70 C At high water temperatures there is more scale buildup in t...

Страница 17: ...ustment see Figure 9 To make this possible the temperature control knob should be removed by pulling it straight forward making the pr adj visible Turning clockwise reduces the pressure turning anti clockwise increases the pressure It is recommended to check the heat input by means of the gas meter 4 Turn off the appliance and remove the manometer hose and replace the adjusting screw 5 Replace the...

Страница 18: ... the main gas tap in the gas supply 2 Demount the burner see Cleaning 3 Replace the injector of the main burner and the pilot burner with the correct injectors from the conversion set see tables above 4 a Conversion from natural gas to LP gas Put the pressure regulation of the gas control block out of operation To do this the temperature regulating knob should be pulled straight forward Turn the n...

Страница 19: ...f the type of the appliance and the serial number 4 b Conversion from LP gas to natural gas Put the pressure regulator into operation To do this the temperature regulating knob should be pulled straight forward Next the red plastic cover that is now visible should be removed Turn the no pr no pressure regulation screw completely up see Figure 10 Seal this setting with lacquer Remount the burner in...

Страница 20: ...ation of these should be checked If necessary the burner pressure of the main burner should be reset 2 8 3 Inspection of the internal waterside surfaces Formation of lime scale depends on the quality and quantity of the water used In addition higher water temperatures lead to more deposit in the appliance A temperature setting of 60 C is recommended in order to keep the calcification at a low leve...

Страница 21: ...s or open taps 4 Is the gas supply adequate Check and correct if necessary 5 Perhaps the hot water consumption is higher than was originally calculated 6 Check whether the cold water inlet has been correctly connected 7 Check the thermostat sensor for scale build up 2 10 4 Hot water temperature too high Check whether the control thermostat is set too high 2 10 5 Possible water leakage 1 Check whet...

Страница 22: ...er water supply pressure with a maximum of 8 bar The amount of cold water that is added is equal to the amount of hot water used The gas control block automatically regulates the gas supply The main burner will ignite as soon as a reduction in water temperature is sensed by the control thermostat The main burner will shut down as soon as the water temperature returns to the preset temperature Posi...

Страница 23: ...lief button The water has to flow out in a forceful jet Check whether the discharge pipe is open We recommend a service agreement on an annual basis To be able to order spare parts it is important to note the type of appliance as well as the serial number of the appliance Based on this information the data concerning the spare parts can be determined ...

Страница 24: ...ntact your installer or the local gas company Clean the pilot burner Find the cause and remove it Set the temperature regulator at a lower temperature Replace the thermocouple Restore the connection Open the gas tap Connect by sliding the two connectors of the down draught supervision on to the thermocouple Set the temperature regulator at a higher temperature Turn the temperature regulator comple...

Страница 25: ...our installer See Condensation Tighten the threaded connections Trace the cause Reduce your hot water use Allow the appliance enough time to warm up water Safety thermostat has closed the gas supply because the water temperature was too high Hot water storage empty Cause cannot be determined Condensation of flue gasses Insufficient sealing of the water connections thread Leakage from other water a...

Страница 26: ... Cut Off device c at water pressures and or energy inputs which do not exceed those stated on the rating plate of the water heater d in a non corrosive atmosphere or area e with an approved temperature and pressure relief valve of adequate capacity not exceeding the working pressure rating shown on the water heater and installed in conformity with A O Smith Water Products Companies installation in...

Страница 27: ...question further A O Smith does not guarantee this water heater as suitable for purpose except within the terms of warranty detailed above A O Smith Water Products Company will not be liable by virtue of this guarantee or otherwise for damage to any persons or property when arising out of contracts or tort The terms of this guarantee do not effect your statutory rights under United Kingdom Consume...

Страница 28: ...28 MODEL SERIALNUMBER ORIGINALDATEOFINSTALLATION NAMEOWNER ADDRESS TOWN STAMP INSTALLER Important This form should be filled in completely within two weeks of installation ...

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Страница 32: ...32 0307 985 R1 ...

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