A.O. Smith EQ 280 Скачать руководство пользователя страница 5 | Manualshive

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5

1) Draught diverter
2) Hot water outlet
3) Insulation material
4) Flue tube
5) Glass lined tank
6) Gas control valve
7) Cold water inlet pipe

8)

T&P safety connection

9)

Steel jacket

10) Flue baffle
11) Sacrificial anode
12) Drain tap
13) Atmospheric burner
14) Pilot light burner with

thermocouple

Drawing 1 - Cross-section of the
appliance

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Содержание EQ 280

Страница 1: ...WATERSTORAGEHEATERS UNITED KINGDOM IRELAND MODELS EQ 280 G EQ 380 G INSTALLATION AND USER INSTRUCTION ...

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: ...raught safety device 14 2 2 Commissioning 15 2 3 Pilotadjustment 16 2 4 Putting out of operation 16 2 5 Temperature regulation 16 2 6 Setting the nominal heat input 17 2 7 Conversion procedure 17 2 8 Maintenance 19 2 8 1 Sacrificial anode 19 2 8 2 Cleaning 19 2 8 3 Decalcification 20 2 8 4 Spare parts 20 2 9 Inletcombination 20 2 10 Fault finding 20 2 11 Gas smell 21 2 12 Condensation 21 2 13 Impo...

Страница 4: ...ry 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 Four flue baffles 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 exhau...

Страница 5: ... Flue tube 5 Glass lined tank 6 Gas control valve 7 Cold water inlet pipe 8 T P safety connection 9 Steel jacket 10 Flue baffle 11 Sacrificial anode 12 Drain tap 13 Atmospheric burner 14 Pilot light burner with thermocouple Drawing 1 Cross section of the appliance ...

Страница 6: ... maximum inlet pressure is 50 mbar Thermal Reflux Safeguard The heater is fitted with a flue gas blowback safety device The functioning of the safety device is based upon the principle of the Thermal Reflux Safeguard TRS for short shown in Fig 2 This TRS can be recognized by the copper coloured spiral that is fitted to the lower edge of the draught diverter The spiral is connected to a thermostat ...

Страница 7: ...uffers from down draught conditions We advice that necessary remedial actions be carried out by a competent person Important If the water heater is put out of operation by a failure this may be caused by the T R S If there is a RESET button on the thermostat this is visible because the button rose The device can be put back into operation by pressing the RESET button The T R S should never be put ...

Страница 8: ...diameter dimension G All dimensions are given in mm rounded off on 5 mm Dim EQ 280 EQ 380 zie fig 3 A 1585 1780 B 1450 1640 D 645 675 F 730 765 G 130 130 K 390 390 L 375 385 M 1505 1685 N 1505 1685 R 285 275 S 1280 1460 V 410 410 1 Cold water inlet 2 Warm water outlet 3 Gas control block 4 Drain tap 5 T P relief valve tapping ...

Страница 9: ...9 Drawing 3 Dimensions ...

Страница 10: ...min 56 61 DATA BUTANE G30 30 mbar Nominalheatinput lowervalue kW 22 6 24 0 Nominalpower kW Inlet pressure G30 mbar 30 30 Burnerpressure G30 mbar 30 30 Gasconsumption G30 kg h 1 8 1 9 Diameter main orifice G30 mm 2 30 2 35 Diameter pilot orifice G30 mm 2x0 16 2x0 16 Warming up time T 45 K min DATA PROPANE G31 37 mbar Nominalheatinput lowervalue kW 21 1 22 9 Nominalpower kW Inlet pressure G31 mbar 3...

Страница 11: ... ISO 7 1 Rp 1 2 ISO 7 1 Rp 1 2 Draintap 3 4 14 NPT 3 4 14 NPT Anode 3 4 14 NPT 3 4 14 NPT T P plug 3 4 14 NPT 3 4 14 NPT Maximumworkingpressure bar 8 8 Emptyweight kg 153 178 Gasconsumptionat1013 25mbarand15 C Foraleak proofsealedconnectionEuropeancouplingpiecescanbeusedontheNPT connectionnippleswithapipethread ofISO228 1 ...

Страница 12: ...regulations local water authority and fire regulations and the 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 process...

Страница 13: ...ation pump 7 Drain valve Drawing 4 Connection diagram unvented system 2 1 3 Gas connection The gas supply to this appliance must be installed in accordance with BS 6891 1988 Fit the 1 2 gas supply cock supplied with this unit immediately before the gas control block No heat or soldered joints should be applied in the vicinity of the gas control block as they could cause damage to the control 8 Pre...

Страница 14: ...ials should be corrosion resistant i e stainless steel or galvanised and must include a tested and approved terminal 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 exis...

Страница 15: ...ol knob pushed in and press the piezo ignitor several times until the pilot burns see drawing 6 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 adjustment 6 Fit the outer do...

Страница 16: ...able to drain the appliance completely it should be disconnected and tilted slightly in the direction of the drain tap 2 5 Temperature regulation The appliance is under water supply pressure maximum 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 ...

Страница 17: ... adjustment see drawing 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 Relace...

Страница 18: ...p Set the correct burner pressure see table above 5 If necessary adjust the pilot correctly see Pilot adjustment 6 Fit the correct sticker from the conversion set on the appliance so that it is clear that the appliance has been converted and on which gas the appliance operates Procedure 1 Close the main gas tap in the gas supply 2 Demount the burner see Cleaning 3 Replace the injector of the main ...

Страница 19: ...ecessary to replace the Drawing 10 Conversion to another gas anode it should always be replaced by one of the same type The type of anode required can be determined on the basis of the type of the appliance and the serial number 2 8 2 Cleaning 1 Close the gas supply and demount the burner after it has cooled down 2 Disconnect the burner pilot pipe and thermo couple from the gas control block see d...

Страница 20: ...appliance Based on this information the data concerning the spare parts can be determined 2 9 Inletcombination Not applicable in U K and Ireland 2 10 Faultfinding In case of failure the following should be checked Safety thermostat All appliances have been fitted with a safety thermostat that shuts off the gas supply when the water temperature is too high The safety thermostat remains activated un...

Страница 21: ...ure too high Check whether the control thermostat is set too high Possible water leakage 1 Check whether the drain tap is fully closed 2 Check whether all water connections are water tight 3 Check whether the possible water leakage could be caused by condensation 2 11 Gas smell Warning Immediately shut the main gas tap Do not light any fire or switch on any lights do not use any electrical switche...

Страница 22: ...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 Position 1 approximately 30 C Position 2 approximately 40 C Position 3 approxi...

Страница 23: ...nwindowsandimmediatelycontact yourinstallerorthelocalgascompany Cleanthepilotburner Findthecauseandremoveit Setthetemperatureregulatoratalowertemperature Replacethethermocouple Restoretheconnection Openthegastap Setthetemperatureregulatoratahighertemperature Turnthetemperatureregulatorcompletelyclockwise turn controlbuttonto on turnthetemperatureregulatorto thedesiredposition preferablyposition4 T...

Страница 24: ...ressures 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 instructions f when anode s ha...

Страница 25: ...oes 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 Consumer Legislation ...

Страница 26: ...26 ...

Страница 27: ...27 MODEL SERIALNUMBER ORIGINALDATEOFINSTALLATION NAMEOWNER ADDRESS TOWN STAMP INSTALLER Important This form should be filled in completely within two weeks of installation ...

Страница 28: ...0308 645 R0 ...

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