background image

Fault

Possible cause

Corrective action

3.2

Fault overview

Blocked pilot burner

Blocked chimney

Safety thermostat

Thermocouple defective

Thermocouple makes no
contact

Gas supply closed

Down draught
supervision not
connected.

Temperature is set too
l o w

Control knob in position
(

) (pilot burns )

Control knob in position

(

l

)

Flue safety device closed
the gas supply

Gas supply closed

Gas smell

Pilot
extinguishes

Insufficient
hot water, or
none at all

If you smell gas you should immediately
close the main gas tap  you should not
light any fire or switch on light,
electrical switches or bells. Open
windows and immediately contact 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
completely clockwise; turn control button
to “on” ( ); turn the temperature
regulator to the desired position,
preferably position 4. The appliance now
operates fully automatically.

Put the appliance into operation.

Press the reset button - if present - on
the safety thermostat and put the
appliance into operation. If this occurs
more often then you should inform your
installer.

Open the gas tap and put the appliance
into operation.

Содержание PRV 30 NORS G

Страница 1: ...INSTALLATION AND USER INSTRUCTIONS HOTWATERSTORAGEHEATERS UNITEDKINGDOM IRELAND MODELS PRV 30 NORS G PRV 40 NORS G PRV 50 NRRS G ...

Страница 2: ...ly 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 STATE WATER HEATERS accepts no responsibility for warranty service and or product liability...

Страница 3: ...ner door 15 2 3 Pilotadjustment 15 2 4 Putting out of operation 15 2 5 Temperature regulation 16 2 6 Setting the nominal heat input 17 2 7 Conversion procedure 18 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 10 1 Safety thermostat 20 2 10 2 Flue down draught safety device 21 2 10 3 Hot ...

Страница 4: ...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 exhaust of the flue ga...

Страница 5: ...e tube 5 Glass lined tank 6 Gas control valve 7 Cold water inlet 8 T P valve connection 9 Outer casing Figure 1 Cross section of the heater 10 Flue baffle 11 Sacrificial anode 12 Drain tap 13 Atmospheric burner 14 Pilot light burner with thermocouple AOS 0478 ...

Страница 6: ...a combustion products discharge safety device It is the function of the safety device to prevent flue gasses from the water heater entering the room where the water heater has been placed instead of passing through the flue to outside atmosphere The gas supply is disconnected as soon as the device is activated by hot gasses flowing over the sensor After the cause of the re entry of flue gasses has...

Страница 7: ...l valve 1 Combustion products discharge safety device thermostat 2 Sensor Combustion products discharge safety device thermostat 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: ...RS PRV 40 NORS PRV 50 NRRS seedraw 3 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 1160 1250 1590 N 1160 1250 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 tap 5 T P valve tapping All dimensions are given in mm rounded off on 5 mm See figure 3 ...

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

Страница 10: ...essure mbar 20 20 20 Burnerpressure mbar 12 5 12 5 10 5 Gasconsumption m3 h 0 9 1 1 1 7 Diametermainorifice mm 2 35 2 60 3 50 Diameterpilotorifice mm 2x0 27 2x0 27 2x0 27 Heating time T 44 K min 45 49 40 DATABUTANEG30 28 30mbar Nominalload gross k W 10 1 12 2 17 6 Supplypressure mbar 30 30 30 Burner pressure mbar 30 30 30 Gasconsumption kg h 0 7 0 9 1 3 Diametermainorifice mm 1 40 1 50 1 95 Diamet...

Страница 11: ...uthority 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 processesor any other area where...

Страница 12: ...rally as shown on the following diagram See figure 4 STATE WATER HEATERS are tested to a maximum pressure of 12 bar and a maximum working pressure of 8 bar 2 1 3 Gasconnection The gas supply to this appliance must be installed in accordance with BS 6891 1988 Fit the gas supply cock supplied with this unit immediately before the gas control block No heat or soldered joints should be applied in the ...

Страница 13: ...nalling returning flue gases The probe of the down draught supervision must remain installed on the draught hood Connect the slide connectors of the down draught supervision to the thermocouple see Figure 5 and install the head of the down draught supervision in the bracket see Figure 5 The draught hood must be positioned in its normal place with the temperature probe at the front of the boiler Pa...

Страница 14: ...d press the piezo ignitor several times until the pilot burns see figure 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 Subsequently remount the outer and in...

Страница 15: ...he burner venturi 3 Turn both clamps outward 3 pushing them over 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 ther...

Страница 16: ...er 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 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 h...

Страница 17: ...ation and ignite the burner 3 Check the burner pressure and if necessary reset by means of the adjusting screw pr adj pressure adjustment 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 in...

Страница 18: ...ut 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 no pr no pressure regulation screw down tight see figure10 Seal this setting with lacquer Remount the burner in reverse order Open the main gas tap 4b Conversion from LP gas to natural gas Put the pressure regulator into operation To do this the...

Страница 19: ...sary to replace the anode it should always be replaced by one of the same type Figure 10 Conversion to another gas 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 drawin...

Страница 20: ...s 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 2 9 Inlet combination Not applicable in U K and Ireland 2 10 Fault finding In case of failure the following should be checked 2 10 1 Safety thermostat All appliances have been fitted with a safety thermostat that shuts off the gas s...

Страница 21: ...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 switches or alarm bells Open windows Thoroughly inspect all gas connections and if the g...

Страница 22: ...on 2 approximately 40 C Position 3 approximately 50 C Position 4 approximately 60 C Position 5 approximately 70 C Higher water temperatures will cause more scale build up in the appliance It is for this reason that it is recommended to place the temperature control knob in position 4 as the accumulation of scale will be reduced at lower temperatures In addition a safety thermostat has been fitted ...

Страница 23: ...ontact 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 compl...

Страница 24: ...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 25: ...d 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 withSTATEWATERHEATERS installation instructions f when anode s have been inspected and renewed...

Страница 26: ...able for purpose except within the terms of warranty detailed above STATE WATER HEATERS 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 This warranty applies to the following models PRV 30 NORS G PRV 40 NOR...

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

Страница 28: ...0307 993 R0 28 ...

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