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Summary of Contents for Johnson & Starley SCE 75-75 G
- Page 1 SCE 75-75 G MODEL SCE 100-95 G Installation, Commissioning and Maintenance Instructions UNITED KINGDOM / IRELAND HOT WATER STORAGE HEATERS...
- Page 2 Read these installation instructions first before installing the appliance. Carefully read the user instructions before igniting the appliance. Failure to follow these instructions may lead to risk of explosion and/or fire and could cause material damage and/or bodily harm. Installation and commisioning should be carried out by a qualified competent installer.
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Page 3: Table Of Contents
CONTENTS PAGE GENERAL Description of the appliance ................4 Technical safety equipment ................6 1.2.1 Gas control valve ..................... 6 1.2.2 Control panel ....................6 1.2.3 Operation of the water heater ................. 7 1.2.4 Combustion products discharge safety device ..........7 Technical information .................. -
Page 4: General
dead leg 3 metres. 1. GENERAL Description of the appliance Construction of the water heater is in accordance with the European standard for gas heated water storage heaters for sanitary application (EN89). The appliance thus meets the European Directory for Gas Appliances and is therefore entitled to carry the CE- marking. - Page 5 AOS 1120 Figure 1 - Cross section of the heater 10) Cold-water inlet Draught diverter 11) Combustion products dicharge Hot water outlet safety device Insulation 12) T&P valve connection Flue tube 13) Outer casting Glass lined tank 14) Flue baffle Gas control valve 15) Sacrifical anode Control panel...
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Page 6: Technical Safety Equipment
Technical safety The automatic incandescent ignition (hot equipment surface) ensures that the burner ignites as soon as there is a demand for heat. 1.2.1 Gas control valve 1.2.2 Control panel The water heater is equipped with a gas control valve wich regulates the Temperature control for the water flow of gas to the burner. -
Page 7: Operation Of The Water Heater
1.2.3 Operation of the storage can be put back into operation by water heater. pressing its reset button. Normal operation If this failure occurs frequently, this When there is a demand for heat a indicates that the flue suffers from down waiting period of about 1 second draught conditions. -
Page 8: Technical Information
Technical description 1.3.1 Dimensions These water heaters are only suitable for a flue tube with minimal the announced diameter (dimension G). SCE 75-75 SCE 100-95 Dimensions 1585 1780 1450 1640 1505 1685 1505 1685 1280 1460 Cold water inlet Hot water outlet Gas control valve Drain valve T&P valve tapping... - Page 9 Figure 3 - Dimensions...
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Page 10: Technical Data
1.3.2 Technical data device category: II 2H3+ Description Unit SCE 75-75 SCE 100-95 DATA NATURAL GAS G20 - 20 mbar Nominal load (gross) 25.1 26.7 Nominal output 19.2 20.4 Supply pressure mbar Burner pressure mbar 12.0 Gas consumption * 2.40 2.50 Diameter main orifice 3.90... - Page 11 Electrical connection Electrical Frequency Electrically supply fused to 220/240 V AC 50 Hz Ionisation current. The minimal ionisation current is 0.9 mi- cro-Amperes DC. Below this current the burner controller will assume no flame present. When in normal operation, the ionisation current wil be about 1.2 to 1.3 micro-Amperes DC when only the pilot flame is burning.
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Page 12: For The Installer
2. FOR THE INSTALLER For domestic applications: BS 5440 - part 1 and part 2. Installation instructions BS 5546 - Installation of gas hot water This water heater must be fitted in a supplies for domestic location which will permit the provision purposes. -
Page 13: Water Connections
Therefore if this water heater will be case appropriate valves and fittings used to supply hot water to: should be used to ensure the system hairdressers, complies with the requirements of the dry cleaners, water by laws, and appropriate building industrial degreasing processes regulations. - Page 14 Unvented system (See figure 5) To install an STATE WATER HEATERS on an unvented cold water supply system a kit of valves and fittings fisted by the water reseach centre and complying with part G3 of the current building regulations should be used. Installation should be carried out generally as shown on the following diagram.
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Page 15: Gas Connection
2.1.3 Gas connection the flue system. The gas supply to this appliance must The sensor of the combustion products be installed in accordance with BS 6891 discharge safety device is pre-fitted to (1988) and British Gas Publications UP1 the draught diverter so care should be and UP2. -
Page 16: Commissioning
may be necessary to repeat the Electrical Frequency Electrically lighting sequence a number of times supply fused to a on the initial light up if all the air has minimum of not been purged from the gas supply; 220/240 V AC 50 Hz 7. -
Page 17: Removing And Replacing The Control Panel
Removing and replacing Setting the gas pressure the control panel front cover The gas pressure has been set to the correct values at the factory. Taking off the column (see figure 7). Important: The following proce- 1. Remove the screw at the top center dure must be followed when of the column;... -
Page 18: Removingand Replacing The Inner Door
Temperature regulation Removingand replacing the inner door The appliance is under water supply Mode of operation: (see figure 8). pressure (maximum 8 bar). The amount 1. Place the clips in the position on the of cold water that is added is equal to inner door so the door can fullty stick the amount of hot water used. -
Page 19: Converting To Another Type Of Gas
Converting to another Maintenance type of gas To ensure safe and efficient operation of For conversion of the appliance from na- the water heater it is recommended that tural gas to another type of gas, or visa it is cleaned and serviced at least once a versa, it is necessary to exchange the year by a qualified competent person. -
Page 20: Cleaning
2.8.2 Cleaning inspect all gas connections and, if the 1. Close the gas supply and demount gas smell persists, alert the local gas the burner after it has cooled down company and/or your installer. 2. Disconnect the burner assembly from the gas control 2.11 Condensation 3. -
Page 21: Commisioning
3. FOR THE USER 8. Set the temperature regulator to the required setting (see ‘De- Commisioning scalcification’). Warning Installing and commissioning of this wa- ter heater should only be carried out by The appliance is under water supply a qualified competent heating engineer. pressure (maximum 8 bar). -
Page 22: Fault Finding
Fault finding Fault Possible cause Corrective action Gas smell If you smell gas you should immediately close the main gas tap, you should not fight any fire or switch on light. electrical switches or bels. Open windows and immediately contact your installer or the local gas company Heater is Burner automat is in lock... - Page 23 Fault Possible cause Corrective action Water Condensation of (flue) gasses See chapter “Condensation” leakage Leakage from other water If possible trace the cause and/or call your heater or pipes in the vicinity installer If a fault cannot be rectified or if the fault is persistent, please contact your installer.
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Page 24: Warranty
4. WARRANTY e) with an approved temperature and pressure relief valve of adequate The following conditions form the capacity not exceeding the working guarantee agreement between STATE pressure rating shown on the water heater, and installed in conformity WATER HEATERS (the warrantor) and with STATE WATER HEATERS the owner of the water heater. - Page 25 The terms of this guarantee do not ef- fect your statutory rights under United Kingdom Consumer Legislation. This guarantee applies to the model SCE 75-75 G and SCE 100-95 G...
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Page 26: Appendix 1
APPENDIX 1 Connection diagram = brown = blue = yellow/green = black = white = red = Ignition controller = ON/OFF switch C = Pilot burner D = Spark electrode = Flame probe = Transformer flame detection * G = Combustion products discharge safety device H = Control thermostat = Safety thermostat = Timer *... - Page 28 0308 255 R1...
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