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1.3

Technical description

1.3.1 Dimensions

These water heaters are only suitable
for a flue tube with minimal the
announced diameter (dimension G).

Dimensions

EQ 115

EQ 155

EQH 200

1280

1370

1670

1120

1210

1540

465

515

545

595

605

100

325

380

270

295

395

1180

1270

1590

1180

1270

1590

230

255

945

1030

1380

205

Cold water inlet

Hot water outlet

Gas control valve

Drain valve

T&P valve tapping

All dimensions are given in mm (rounded
off on 5 mm).

Содержание EQ 115 G

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 regis...

Страница 3: ...stment 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...

Страница 4: ...sary 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 th...

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 Atmosph...

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...

Страница 7: ...k 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 Temperat...

Страница 8: ...nsions 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...

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

Страница 10: ...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...

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 combust...

Страница 12: ...in 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...

Страница 13: ...al 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...

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 releasin...

Страница 15: ...he 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 clo...

Страница 16: ...e 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...

Страница 17: ...stment 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 cl...

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...

Страница 19: ...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 straigh...

Страница 20: ...tion 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 a...

Страница 21: ...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 cor...

Страница 22: ...r 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 bu...

Страница 23: ...ief 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 n...

Страница 24: ...tact 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 Op...

Страница 25: ...ur 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 be...

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...

Страница 27: ...uestion 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...

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

Страница 29: ...29...

Страница 30: ...30...

Страница 31: ...31...

Страница 32: ...32 0307 985 R1...

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