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MODELS
EQ 280 G
EQ 380 G
INSTALLATION- AND USER
INSTRUCTION
UNITED KINGDOM / IRELAND
WATERSTORAGE HEATERS
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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 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 ma
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CONTENTS PAGE 1. General. ......................................................................................................... 4 1.1 - Description of the appliance .......................................................................... 4 1.2 - Technical safety equipment ........................................................................... 6 1.3 - Technical description ..................................................................................... 8 1.3.1 - Dimensions ........
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1. GENERAL exceeding 25 mm. maximum dead leg 3.0 metres. 1.1 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 (EN 89). The appliance thus meets the European Directory for Gas Appliances and is therefore entitled to carry the CE- marking. It is an open flued appliance without ventilator and with a flue gas down draught safeguard (category B11BS). The water heater is suitable for
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Drawing 1 - Cross-section of the appliance 1) Draught diverter 8) T&P safety connection 9) Steel jacket 2) Hot water outlet 3) Insulation material 10) Flue baffle 4) Flue tube 11) Sacrificial anode 12) Drain tap 5) Glass lined tank 6) Gas control valve 13) Atmospheric burner 14) Pilot light burner with 7) Cold water inlet pipe thermocouple 5
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1.2 Technical safety equipment Thermal Reflux Safeguard The heater is fitted with a flue gas Gas control block blowback safety device. The The water heater has been fitted functioning of the safety device is with a gas control block consisting of a based upon the principle of the Thermal thermo-electrical pilot flame safeguard, Reflux Safeguard – TRS for short – pilot flame pressure regulator, burner shown in Fig.2. pressure regulator, a control thermostat This TRS can be recognized by the (adju
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It is the aim of the T.R.S. 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 thermo-couple circuit is interrupted and the gas supply is disconnected as soon as the T.R.S. is activated by heating of the sensor by the hot gasses. After the cause of the reentry of flue gasses has been traced the device can be put back into operation again. In case of T.R.S. the RESET button has to be
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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). 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 All dimensions are given in mm. (rounded off on 5 mm). 8
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Drawing 3 - Dimensions 9
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1.3.2 Technical data Device category: II2H3+ DESCRIPTION unit EQ 280 EQ 380 DATA NATURAL GAS G20 - 20 mbar: Nominal heat input (lower value) k W 22.6 24.0 Nominal power k W 19.2 20.4 Inlet-pressure (G20) mbar 20 20 Burner pressure (G20) mbar 12.5 8.7 3 Gas consumption (G20) * m /h 2.4 2.5 Diameter main orifice (G20) mm 3.90 4.50 Diameter pilot orifice (G20) mm 2 X 0,27 2 X 0,27 Warming-up time ΔT= 45 K min. 56 61 DATA BUTANE G30 - 30 mbar: Nominal heat input (lower value) k W 22.6 24.0 Nominal p
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DESCRIPTION unit EQ 280 EQ 380 GENERAL Storage capacity litres 265 355 1 Water connections ** - 1" - 14 NPT 1 / " - 14 NPT 4 7 1 7 1 Gas connection - ISO / Rp / ISO / Rp / 1 2 1 2 3 3 Drain tap - / " - 14 NPT / " - 14 NPT 4 4 3 3 Anode - / " - 14 NPT / " - 14 NPT 4 4 3 3 T&P-plug - / " - 14 NPT / " - 14 NPT 4 4 Maximum working pressure bar 8 8 Empty weight kg 153 178 * Gas consumption at 1013,25 mbar and 15°C ** For a leak-proof sealed connection European coupling pieces can be used on the NPT-c
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2. FOR THE INSTALLER 6644, 6700, 6798 and 6891. 2.1 Installation instructions Some chemicals produce vapours which can cause rapid failure of This water heater must be fitted in a thermocouples, burners and storage location which will permit the provision tanks if they are drawn into the of an approved flue system and combustion air supply. adequate ventilation. Therefore if this water heater will be used to supply hot water to: - hairdressers, A service clearance of 15 cm at the sides and rear
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Drawing 4 - Connection diagram (unvented system) 1) Gas cock 8) Pressure limiting valve 2) Stop valve 9) Pressure relief valve 3) Expansion vessel A) Gas supply 4) T&P safety valve B) Hot water outlet 5) Non return valve C) Cold water inlet 6) Circulation pump D) Hot wayer outlets 7) Drain valve E) Return circulation loop the current building regulations should 2.1.3 Gas connection be used. Installation should be carried The gas supply to this appliance out generally as shown on the following mu
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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 system The water heater should be fitted with a flue system connected to the draught diverter. The flue pipe should rise for at least 50 cm. vertically before the inclusion of any bends. If a horizon- tal run of flue is required this should be kept to the minimum length possible and incorporate a rise of 6 cm. per metre of run. A split clip or flange should be provi
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2.2 Commissioning 5. Keep the control button (✸) pushed- in for approximately 20 seconds. Filling the water heater After releasing the button the pilot 1. Close the drain tap. should remain burning. If the pilot 2. Open the cold water tap to the water extinguishes you should wait 5 heater and open all taps where hot minutes before repeating the ignition water can be drained for de- procedure. The size of the pilot flame aeration. The water heater is filled can be adjusted (see also “Pilot as soo
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2.3 Pilot adjustment and tilted slightly in the direction of the drain tap. The pilot can be adjusted by means of the regulating screw under the 2.5 Temperature regulation plastic cover on the right hand side of the gas control block. The appliance is under water Turn the screw clockwise to supply pressure (maximum 8 bar). The reduce the gas pressure and anti amount of cold water that is added is clockwise to increase the pressure. equal to the amount of hot water used. Care should be taken to e
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2.6 Setting the nominal heat straight forward, making the “pr adj” input visible. Turning clockwise reduces The gas control has been factory the pressure; turning anti clockwise preset to the water heater nominal heat increases the pressure. It is input. recommended to check the heat A further check of the burner input by means of the gas meter. pressure should be carried out during 4. Turn off the appliance and remove the commissioning of the unit after the manometer hose and replace the instal
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EQ 280 EQ 380 Unit G20 G30 G31 G20 G30 G31 Inletpressure mbar 20 30 37 20 30 37 Burner pressure mbar 12.5 30 37 8.7 30 37 Diameter main mm 3.90 2.30 2.25 4.50 2.35 2.35 injector Diameter pilot 2x 2x 2x 2x 2x 2x injector mm 0.27 0.16 0.16 0.27 0.16 0.16 Procedure: Conversion from LP-gas to natural 1. Close the main gas tap in the gas gas: supply. - Put the pressure regulator into 2. Demount the burner (see “Cleaning”). operation. To do this the 3. Replace the injector of the main temperature regu
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Drawing 10 - Conversion to another gas 2.8 Maintenance anode it should always be replaced by one of the same type. To ensure safe and efficient The type of anode required can be operation of the water heater it is determined on the basis of the type of recommended that it is cleaned and the appliance and the serial number. serviced at least once a year by a qualified competent person. 2.8.2 Cleaning 1. Close the gas supply and demount 2.8.1 Sacrificial anode the burner after it has cooled down;
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2.8.3 Decalcification 2.9 Inlet combination Formation of lime scale depends on the quality and quantity of the water Not applicable in U.K. and Ireland. used. In addition higher water temperatures lead to more deposit in the 2.10 Fault finding appliance. A temperature setting of 60°C is recommended in order to keep In case of failure the following the calcification at a low level. should be checked. Decalcification should be attempted with the proper means. For extensive Safety thermostat inform
