Related Manuals for State Water Heaters PRV 30 NORS G
Summary of Contents for State Water Heaters PRV 30 NORS G
- Page 1 MODELS PRV 30 NORS G PRV 40 NORS G PRV 50 NRRS G INSTALLATION AND USER INSTRUCTIONS UNITED KINGDOM / IRELAND HOT WATER STORAGE HEATERS...
- Page 2 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 in case of unauthorized alterations, product modifications or...
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Page 3: Table Of Contents
CONTENTS PAGE General ......................4 Introduction ....................4 Technical safety equipment ................6 1.2.1 Gas control block ................... 6 1.2.2 Combustion products discharge safety device ..........6 Technical information ..................8 1.3.1 Dimensions ....................8 1.3.2 Technical data ..................... 10 For the installer . -
Page 4: General
1. GENERAL for pipes with an inside diameter exceeding 25 mm. maximum dead leg Introduction 3.0 metres. Construction of the heaters 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. - Page 5 AOS 0478 Figure 1 - Cross-section of the heater 1) Draught diverter 10) Flue baffle 11) Sacrificial anode 2) Hot water outlet 3) Insulation 12) Drain tap 13) Atmospheric burner 4) Flue tube 14) Pilot light burner with 5) Glass lined tank thermocouple 6) Gas control valve 7) Cold water inlet...
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Page 6: Technical Safety Equipment
Technical safety equipment 1.2.1 Gas control valve The water heater has been fitted with a gas control block consisting of a thermo-electrical pilot flame safeguard, pilot flame pressure regulator, burner pressure regulator, a control thermostat (adjustable between 30°C and 71°C) and a safety thermostat (82°C). - Page 7 AOS 0479 Figure 2 - Combustion products discharge safety device with gas control valve 1) Combustion products discharge 4) Thermocouple safety device thermostat 5) Gas control block 2) Sensor Combustion products 6) Reset button discharge safety device 7) Pilot burner thermostat 8) Temperature regulator knob 3) Thermocouple with built-in...
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Page 8: Technical Information
Technical information 1.3.1 Dimensions These water heaters are only suitable for a flue tube with minimal the announced diameter (dimension G). Dimen- sions PRV 30 NORS PRV 40 NORS PRV 50 NRRS (see draw.3) 1280 1370 1670 1120 1210 1540 1160 1250 1590... - Page 9 AOS 0481 Figure 3 - Dimensions...
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Page 10: Technical Data
1.3.2 Technical data Device category: II2H3+ DESCRIPTION unit PRV 30 NORS PRV 40 NORS PRV 50 NRRS DATA NATURAL GAS G20 - 20 mbar: Nominal load (gross) 11.3 18.3 Nominal capacity 14.0 Supply pressure mbar Burner pressure mbar 12.5 12.5 10.5 Gas consumption * Diameter main orifice... -
Page 11: For The Installer
227 litres. to install gas equipment. Unvented Installation should be carried out in To install an 'STATE WATER HEATERS' accordance with all local authority and on an unvented cold water supply building regulations, local water system a kit of valves and fittings listed... -
Page 12: Gas Connection
See figure 4. suitable leak detector (do not use a naked flame). 'STATE WATER HEATERS' are tested to a maximum pressure of 12 bar and a 2.1.4 Flue system maximum working pressure of 8 bar. -
Page 13: Flue Down Draught Safety Device
All flue materials should be corrosion resistant i.e. stainless steel or galvanised and must include a tested and approved terminal to BS 5440 part I. If the flue passes through any combustible material measures must be taken to protect against the possibility of fire. -
Page 14: Commissioning
Commissioning press the piezo-ignitor several times until the pilot burns (see figure 6); 2.2.1 Filling the water heater 5. Keep the control button ( ) pushed- in for approximately 20 seconds. 1. Close the drain tap; After releasing the button the pilot 2. -
Page 15: Removing And Replacing The Inner Door
2.2.3 Removing and replacing the inner door (only for the PRV 30 NORS and PRV 40 NORS model, see figure 7a). Mode of operation: 1. Place lip A through the recess on the right and subsequently slide it down behind the steel wall. See to it that both lower lips remain in front of the metal wall;... -
Page 16: Temperature Regulation
3. Close the gas tap in the supply pipe. regulates the gas supply. The main In case of longer interruptions or in burner will ignite as soon as a reduction the event of risk of frost it is in water temperature is sensed by the recommended to also close the cold thermostat. -
Page 17: Setting The Nominal Heat Input
Setting the nominal 3. Check the burner pressure and, if heat input necessary, reset by means of the adjusting screw “pr adj” (pressure The gas control has been factory adjustment; see Figure 9). To make this possible the temperature control preset to the water heater nominal heat knob should be removed by pulling it input. -
Page 18: Conversion Procedure
Converting to another type of gas Description Unit PRV 30 NORS PRV 40 NORS PRV 50 NRRS G30 G31 G31 G20 G30 G31 Inletpressure mbar Burner pressure mbar 12.5 12.5 10.5 Diameter main 2.35 1.40 1.40 2.60 1.50 1.50 3.50 1.95 1.95 injector Diameter pilot... -
Page 19: Maintenance
AOS 0487 Figure 10 - Conversion to another gas Maintenance The type of anode required can be determined on the basis of the type of To ensure safe and efficient operation the appliance and the serial number. of the water heater it is recommended that it is cleaned and serviced at least once a year by a qualified competent 2.8.2 Cleaning... -
Page 20: Decalcification
Inlet combination 2.8.3 Decalcification Formation of lime scale depends on the quality and quantity of the water used. Not applicable in U.K. and Ireland. In addition higher water temperatures lead to more deposit in the appliance. A 2.10 Fault finding temperature setting of 60°C is recommended in order to keep the calcification at a low level. -
Page 21: Flue Down Draught Safety Device
2.11 Gas smell should be set to a lower water temperature. If the pilot is extinguished repeatedly at higher temperatures than Warning normal, this indicates that the safety Immediately shut the main gas tap. Do thermostat is operating. not light any fire or switch on any lights, do not use any electrical switches or 2.10.2 Flue down draught safety alarm bells. -
Page 22: Putting Into Operation
filled as soon as cold water flows Position 3 = approximately 50°C from all taps; Position 4 = approximately 60°C 3. Close all hot water drain taps. Position 5 = approximately 70°C Higher water temperatures will cause 3.1.2 Putting into operation: more scale build up in the appliance. -
Page 23: Fault Overview
Fault overview Fault Possible cause Corrective action Gas smell 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. - Page 24 Fault Possible cause Corrective action Insufficient Safety thermostat has Set the temperature regulator at a hot water, or closed the gas supply lower temperature and reignite the none at all because the water pilot burner. temperature was too high Hot water storage empty Reduce the consumption of hot water.
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Page 25: Guarantee
F.O.B. basis. a) for potable water free to circulate at STATE WATER HEATERS accepts no all times and with the tank free of responsability for carriage, labour or damaging scale deposits;... - Page 26 HEATERS does not guarantee this water heater as suitable 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.
- Page 27 Important This form should be filled in completely within two weeks of installation. MODEL: ......................... SERIAL NUMBER: ......................ORIGINAL DATE OF INSTALLATION: ................NAME OWNER: ......................ADDRESS: ........................TOWN: .......................... (STAMP) INSTALLER: ....................
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