Johnson & Starley SGT 30 G, Installation And User Instructions Manual

Page 1: ...MODELS SGT 30 G SGT 40 G UNITED KINGDOM IRELAND HOT WATER STORAGE HEATERS INSTALLATION AND USER INSTRUCTIONS ...

Page 2: ...ly harm Installation and commisioning 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 ...

Page 3: ... of operation 15 2 5 Temperature regulation 15 2 6 Setting the nominal heat input 16 2 7 Converting to another type of gas 16 2 8 Maintenance 16 2 8 1 Magenesium anode 16 2 8 2 Cleaning 17 2 8 3 Decalcification 19 2 8 4 Spare parts 19 2 9 Inletcombination 19 2 10 Troubleshooting 19 2 10 1 Safety thermostat 19 2 10 2 Hot water temperature too low 19 2 10 3 Hot water temperature too high 19 2 10 4 P...

Page 4: ...n off from the device it is immediately topped up with cold To ensure an improved heat transfer a vortex strip has been built into the fire tube The flue gases are carried out via the draught hood and the vertical roof duct or the horizontal exterior wall duct The exhaust of the flue gases and the supply of combustion air is realised by means of a natural thermal draught see Fig 1 To create extra ...

Page 5: ...dingsluchttoevoer 3 Hot water outlet 4 Insulation 5 Flue tube 6 Glass lined tank 7 Gas control valve AOS 0563 8 Cold water inlet 9 Outer casting 10 Flue baffle 11 Sacrificial anode 12 Drain valve 13 Burner Fig 1 Cross section of the heater ...

Page 6: ...05 205 1 Cold water inlet 2 Hot water inlet 3 Gas control valve 4 Drain valve 5 T P connection All dimensions are given in mm rounded off on 5 mm 1 3 Technical description 1 3 1 Dimensions The diameter of the flue gas duct and the combustion air supply duct is 80 mm INT The indicated ducts through roof and exterior wall have a 80 mm INT connection ...

Page 7: ...7 Fig 2 Dimensions IMD 0011 ...

Page 8: ...6 63 GENERAL Storage capacity litres 110 145 Water connections 3 4 14NPT 3 4 14NPT Gas connection 150 7 1 Rp 150 7 1 Rp Drain valve 3 4 14NPT 3 4 14NPT Anode 3 4 14NPT 3 4 14NPT T P plug 3 4 14NPT 3 4 14NPT Maximum operation pressure bar 8 8 Empty weight kg 58 70 1 3 2 Technicaldescription Toestel categorie I 2L Gas consumption at 1013 25 mbar and 15 C For a leak proof sealed connection European c...

Page 9: ...ns 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 processes or any...

Page 10: ...lation pump 7 Drain valve 8 Pressure limiting valve 9 Expansion valve Figure 3 Connection diagram unvented system A Gas supply B Hot water delivery C Cold water inlet D Hot water taps E Return circulation See Figure 3 STATEWATERHEATERSwater heaters are tested to a maximum pressure of 12 bar and a maximum working pressure of 8 bar IMD 0469 ...

Page 11: ...ld cause damage to the control All connections and joints should be tested for gas soundness with a suitable leak detector do not use a naked flame 2 1 4 Flue gas exhaust and air supply The flue gas exhaust and the air supply must be installed according to the tables Exterior wall duct see Fig 4 Type M2000 MDV80 Wl 600 Piping material thick thin walled aluminium with lip ring sealing Pipe diameter...

Page 12: ...Assen art no 0700GT 63 Piping material thick thin walled aluminium with lip ring sealing Pipe diameter Ø 80 mm Bend 90 30 15 Fig 5 6 Size roof duct SGT 30 SGT 40 Size Minimum Maximum A 500 7000 B 0 2000 C 1 5 x B A B C 7000 All sizes are in mm Note the fall of the horizontal piping to the device should be at least 5 mm per metre of pipe IMD 0017 IMD 0018 ...

Page 13: ...urgerhout Assen art no 0700GT 63 Piping material thick thin walled aluminium with lip ring sealing Pipe diameter Ø 80 mm Bend 45 SGT 30 SGT 40 Size Minimum Maximum A 500 7000 B 0 2000 C B A B C 7000 All sizes are in mm Note the fall of the horizontal piping to the device should be at least 5 mm per metre of pipe Fig 7 Size roof duct IMD 0019 ...

Page 14: ...it 5 minutes before repeating the ignition procedure The size of the pilot flame Fig 8 Operation gas control block may be adjusted see also Adjusting the pilot flame 5 Turn the control knob to the ON position 6 Turn the temperature control knob to the desired position preferably to position 4 approx 60 C The device will now operate automatically 7 Check the burner pressure setting see Fig 10 and a...

Page 15: ...er 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 thermo stat 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 ap...

Page 16: ...rward making the pr adj visible Turning clockwise reduces the pressure turning anti clockwise increases the pressure It is recommended to check the heat in put by means of the gas meter 4 Turn off the appliance and remove the manometer hose and replace the adjusting screw 5 Replace the thermostat control knob 6 Put the appliance into operation 2 7 Conversion to another type of gas The SGT boiler i...

Page 17: ... off the gas supply 2 Slide the air supply pipe into each other so that it can be removed see Fig 11 3 Unscrew the 4 bolts A from the aeration chamber lid and remove these see Fig 12 4 Remove the pilot flame pipe and thermocouple from the gas control block see Fig 13 5 Remove the main burner from the flexible burner pipe connection This must be done from the aeration chamber see Fig 13 6 Now unscr...

Page 18: ...18 AOS 0572 Fig 13 Removing the burner pilot flame pipe and thermocouple AOS 0276 AOS 0278 Fig 15 Removing the burner Fig 14 Removing the burner chamber guard ...

Page 19: ...a fault clearing service 2 10 1 Safety thermostat All devices are equipped with a safety thermostat which shuts off the gas supply in case of too high a water temperature The safety thermostat will remain switched on until the water temperature has dropped to below the safe temperature level After that the device should be put back into operation because the main burner and pilot flame burner will...

Page 20: ... appliance is filled with cold water or if the hot water consumption is very high condensation of flue gasses will occur on the cold surfaces of the combustion chamber and the flue tube The water drops will fall on the burner and cause a sizzling noise This is a normal phenomenon that will disappear as soon as the appliance reaches its normal operating temperature Important warning The applicance ...

Page 21: ...r 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 Position 1 ...

Page 22: ...o 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 ...

Page 23: ...ls 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 the two wires to the thermo couple Set the temperature regulator at a higher temperature Turn the temperature regulator completely clockwise t...

Page 24: ...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 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 wa ter a...

Page 25: ...iler or left in it 4 3 Conditionsofinstallation and use The warranty referred to in Articles 1 and 2 only apply if the following conditions are met a that the boiler is installed according to the installation instructions of STATE WATER HEATERS for the specific model as well as according to the local and national installation and building regulations instructions and rules b that the boiler will r...

Page 26: ...ur installation or any other capacity connected to the replacement cannot be charged to STATEWATERHEATERS 4 6 Claims A claim based on the warranty provided must be deposited with the dealer from whom the boiler was purchased or any other dealer who sells products manufactured by STATE WATER HEATERS The investigation carried out on the boiler as referred to in the Articles 1 and 2 will take place i...

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