User Manual And Installation Instructions
Wall hung, fanflue, roomsealed, high efficiency gas boilerUser manual andInstallation instructionsRiva Plus HE ERPModelsG.C. Appl. No.RIVA PLUS HE 24C ERP 47-583-41RIVA PLUS HE 28C ERP 47-583-42COMBI BOILERCOMBI BOILER
WARNINGCongratulations on your choice.Riva Plus HE ERP are condensing high efficiency sealed chamber fan flue gas boilers. Theyare fully electronically controlled and have electronic ignition.The materials they are made of and the control systems they are equipped with give yousafety, a high level of comfort and energy savings to allow you to get the greatest benefit outof independent heating.Riva Plus HE ERP allow a higher efficiency by reducing the flue gas temperature such thatthe water vapour formed during the combustion is condensed out.This allows a gain of useful heat that otherwise would be lost.Biasi UK Ltd is a licensed member of the Benchmark Scheme which aims to improve thestandards of installation and commissioning of domestic heating and hot water systems inthe UK and to encourage regular servicing to optimise safety, efficiency and performance.Benchmark is managed and promoted by the Heating and Hot water Industry Council. Formore information visit www.centralheating.co.uk.DANGER: The indications marked with this symbol must be observed to prevent accidents of mechanical or generic origin (e.g.: Injuries or bruises).DANGER: The indications marked with this symbol must be observed to prevent accidents of electric origin (electrocution).DANGER: The indications marked with this symbol must be observed to prevent the risk of fire or explosion.DANGER: The indications marked with this symbol must be observed to prevent accidents of heat origin (burns).ATTENTION: The indications marked with this symbol must be observed toprevent malfunctioning and/or damage to materials of the appliance or otherobjects.ATTENTION: The indications marked with this symbol are important information that must be carefully read.-2-
The manual must be read thoroughly, so that you will be able to use the boiler in a safeand sensible way and must be carefully kept. It may be necessary for reference in thefuture.The lighting up must be carried out by a competent and responsible engineer.The manufacturer disclaims all liability for any translations of the present manual from which incorrectinterpretation may occur; cannot be held responsible for non-observance of instructions contained in this manualor for the consequences of any procedure not specifically described.Please ensure that the installer has fully completed the Benchmark Checklist on the insideback pages of the installation instructions supplied with the product and that you have signedit to say that you have received a full and clear explanation of its operation. The installer islegally required to complete a commissioning checklist as a means of complying with theappropriate Building Regulations (England and Wales).All installations must be notified to Local Area Building Control either directly or through aCompetent Persons Scheme. A Building Regulations Compliance Certificate will then beissued to the customer who should, on receipt, write the Notification Number on the Benchmark Checklist.This product should be serviced regularly to optimise its safety, efficiency and performance.The service engineer should complete the relevant Service Record on the BenchmarkChecklist after each service.The Benchmark Checklist will be required in the event of any warranty.Using the boiler.Before lighting the boiler you are advised to have a Registered GasSafe Registered Engineer check that the installation of the gas supply is gas-tight; of the correct gauge for the flow to the boiler; fitted with all the safety and control devices required by the current Regulations.Ensure that the installer has connected and terminated the pressure relief valve in a manner whichallows safe discharge. The manufacturers are not responsible for damage caused byopening of the pressure relief valve and consequent escape of water, if this is not connected and terminated; the installer has connected the condensate outlet to a suitable drain pipe.-3-WARNINGRemember that.
WARNINGOn detecting the smell of gas: do not operate any electrical switches, the telephone or any device that may producesparks; open the windows and doors at once to create a draught of air which will purge the area; shut off the gas cocks; get the assistance of a qualified person. Emergency telephone numberTel 0800 111999.Do not touch the appliance with parts of the body that are wet or damp and/or bare feet.Do not block or modify the condensate outlet and pipe work.In case of structural work or maintenance near the flue and flue terminal turn off theappliance. On completion of the work, have a professionally qualified person check thereefficiency.Repairs (under guarantee) must be carried out only by a Biasi an approved engineer, using genuine spare parts. Thus do no more than switching off the boiler yourself (see theinstructions).Your boiler allows heating up of water to a temperature less than boiling point therefore it must be connected to a central heating system and/or a hot water supply system, compatible with its performance and output; can be used only for those purposes for which it has been specially designed; must not be touched by children or by those unfamiliar with its operation; must not be exposed to weather conditions.During the operation it is quite normal that the boiler produces a white plume of condensation vapour from the flue terminal. This is due to the high efficiency of the appliance andmay be particularly evident with low outdoor temperatures.Safe handling of substancesBiasi products are manufactured in accordance with ISO 9001 and do not, and will not,contain any hazardous materials or substances such as asbestos, mercury or C.F.C.’s. Theappliance packaging does not contain any substances, which may be considered a hazardto health.When handling or lifting always use safe techniques keep your back straight, bend your knees, don't twist; move your feet, avoid bending forwards and side ways and keep the load as close to yourbody as possible.Where possible transport the boiler using a sack truck or other suitable trolly.Always grip the boiler firmly, and before lifting feel where the weight is concentrated to establish the centre of gravity, repositioning yourself as necessary.-4-
Sharp EdgesCaution should be taken when handling the boiler to avoid sharp edges on the boiler.Boiler installation and commissioning tipsThe installation must be carried out by a qualified Gas Safe Registered Engineer who willbe responsible for observing the current Regulations and the completion of the Benchmark Gas Boiler System Commissioning Checklist, located at the back of this User manual.Internally installed mains water metersPlease ensure if the property has had a water meter installed inside the property, that it doesnot include a non-return valve. Should you find that it does include a non-return valve thenprovision of a WRAS approved mini expansion vessel must be made.Biasi optional WRAS approved easy fit 15 mm mini shock arrestor kit BI9999 999 canbe obtained through your local Biasi stockist.-5-WARNINGCombustion chamber panelsMaterial: mineral fibresKnown hazards - Some people can suffer reddening and itching of the skin. Fibre entry intothe eye will cause foreign body irritation, which can cause severe irritation to people wearingcontact lenses. Irritation to respiratory tract.Precautions - Dust goggles will protect eyes. People with a history of skin complaints maybe particularly susceptible to irritation. High dust levels are only likely to arise following harshabrasion. In general, normal handling and use will not present high risk. Follow good hygienepractices; wash hands before, touching eyes, consuming food, drinking or using the toilet.First aid - Medical attention must be sought following eye contact or prolonged reddening ofthe skin.
WARNINGInstalling the boiler.You must ensure that you remove the transit caps and plugs from the boiler connectionswhich are fitted to every boiler.Keep the boiler clear of dust during installation and in particular do not allow any dust ordebris to enter the top of the boiler where the flue connection is made. It is recommendedthat you put a dust sheet over the top of the boiler until you are ready to make the flueconnection.Remember to release the auto air purge valve on the pump assembly before filling theboiler. See the instructions to identify the location of this device.This boiler allows you to control the flow temperature of the central heating system atvery low levels. In case of underfloor heating system a temperature limiting device (e.g. asafety thermostat) is recommended to stop the boiler in case that the water temperatureexceeds the design temperature.You are strongly advised to flush out the system both hot and cold in order to remove anysystem and installation debris to the British Standard BS 7593 code of practice.It is also sensible to initially fire and commission the boiler before connecting any externalcontrols such as a room thermostat. By following this procedure, if you have a subsequent problem this method can eliminate the external controls from your fault analysis.Some products incorporate an anti cycling time delay. It is normal when first switching theboiler on for the boiler to operate on heating for a few seconds then switch off. After 3 - 4minutes has elapsed the boiler will then re ignite and operate perfectly normally. The ignition delay cycle does not prevent normal operation of the boiler to provide D.H.W.If you are in any doubts as to the installation or operation of the boiler please read theinstruction manual thoroughly and then if necessary contact Biasi UK for advice and assistance.Guarantee conditions. The guarantee registration form must be returned within 30 daysof purchase, failure to comply will invalidate the guarantee.Please remember that if you are in any doubt about the installation of this product you cancontact our Technical Helpline on tel. 01922 714 600.Abbreviations used in the manual:C.H. Central heatingD.H.W. Domestic hot waterD.C.W. Domestic cold water-6-
TABLE OF CONTENTS1 APPLIANCE DESCRIPTION . . . . . . . . . . . . 81.11.21.31.41.5Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . .Isolation valves . . . . . . . . . . . . . . . . . . . . . . . . . .Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . .Operation lights . . . . . . . . . . . . . . . . . . . . . . . . . .888892.12.22.32.42.52.62.72.82.92.10Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Refilling procedure . . . . . . . . . . . . . . . . . . . . . . . 10Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11C.H. circuit temperature . . . . . . . . . . . . . . . . . . . 11D.H.W. temperature . . . . . . . . . . . . . . . . . . . . . . 12Switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Built in time switch A . . . . . . . . . . . . . . . . . . . . . 13Built in time switch B . . . . . . . . . . . . . . . . . . . . . 15Built in time switch C . . . . . . . . . . . . . . . . . . . . . 17Built in time switch D . . . . . . . . . . . . . . . . . . . . . 193.13.23.33.43.53.6Central Heating . . . . . . . . . . . . . . . . . . . . . . . . .Frost protection . . . . . . . . . . . . . . . . . . . . . . . . .Condensate drain . . . . . . . . . . . . . . . . . . . . . . .Periodic maintenance . . . . . . . . . . . . . . . . . . . .External cleaning . . . . . . . . . . . . . . . . . . . . . . . .Operational faults . . . . . . . . . . . . . . . . . . . . . . .2222222222234.14.24.34.44.54.6Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Main diagram . . . . . . . . . . . . . . . . . . . . . . . . . . .Technical data mod. Riva Plus HE 24C ERP . .Technical data mod. Riva Plus HE 28C ERP . .Hydraulic specifications . . . . . . . . . . . . . . . . . . .Expansion vessel . . . . . . . . . . . . . . . . . . . . . . . lated documents . . . . . . . . . . . . . . . . . . . . . .Location of appliance . . . . . . . . . . . . . . . . . . . . .Flue system . . . . . . . . . . . . . . . . . . . . . . . . . . . .Gas supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Air supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Condensate drain . . . . . . . . . . . . . . . . . . . . . . .Water circulation (C.H.) . . . . . . . . . . . . . . . . . . .Domestic water . . . . . . . . . . . . . . . . . . . . . . . . .Water treatment . . . . . . . . . . . . . . . . . . . . . . . . .Electrical supply . . . . . . . . . . . . . . . . . . . . . . . . .37373839404040414242436.16.2Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Precautions for installation . . . . . . . . . . . . . . . . 442 INSTRUCTIONS FOR USE . . . . . . . . . . . . 103 USEFUL ADVICE . . . . . . . . . . . . . . . . . . . . 224 TECHNICAL INFORMATION . . . . . . . . . . . 255 GENERAL REQUIREMENTS . . . . . . . . . . . 376 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . 446.36.46.56.66.76.86.96.10Installing the bracket . . . . . . . . . . . . . . . . . . . . .Overall dimensions . . . . . . . . . . . . . . . . . . . . . .Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Mounting the boiler . . . . . . . . . . . . . . . . . . . . . .Fitting the flue system . . . . . . . . . . . . . . . . . . . .Choice of flue . . . . . . . . . . . . . . . . . . . . . . . . . . .Electrical connections . . . . . . . . . . . . . . . . . . . .External frost protection . . . . . . . . . . . . . . . . . . 117.127.137.14Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Electrical installation . . . . . . . . . . . . . . . . . . . . .Gas supply installation . . . . . . . . . . . . . . . . . . . .Filling the D.H.W. system . . . . . . . . . . . . . . . . .Initial filling of the system . . . . . . . . . . . . . . . . . .Condensate pipe and traps . . . . . . . . . . . . . . . .Lighting the boiler . . . . . . . . . . . . . . . . . . . . . . .Checking the gas pressure at the burner . . . . .Checking the burner ignition . . . . . . . . . . . . . . .Checking the ignition device . . . . . . . . . . . . . . .Checking the flue system . . . . . . . . . . . . . . . . .Check pump operation/pump release . . . . . . . .Checking the condensate drain pipe . . . . . . . . .Instructing the user . . . . . . . . . . . . . . . . . . . . . .52525252525454555656565757578.18.2Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . 589.19.29.39.49.59.69.7Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Dismantling the external panels . . . . . . . . . . . .Emptying the D.H.W. system . . . . . . . . . . . . . . .Emptying the C.H. system . . . . . . . . . . . . . . . . .Combustion analysis check . . . . . . . . . . . . . . . .Cleaning the primary heat exchanger . . . . . . . .Checking the pressurisation in the expansionvessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Cleaning the burner . . . . . . . . . . . . . . . . . . . . . .Checking the flue system . . . . . . . . . . . . . . . . .Drain pipe inspection . . . . . . . . . . . . . . . . . . . . .Visual inspection of appliance . . . . . . . . . . . . . .Gas pressures and tightness . . . . . . . . . . . . . . .Water inhibitor concentration . . . . . . . . . . . . . . .7 COMMISSIONING . . . . . . . . . . . . . . . . . . . 528 GAS CONVERSION . . . . . . . . . . . . . . . . . . 589 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . 10BENCHMARK COMMISSIONING ANDSERVICING SECTION . . . . . . . . . . . . . . . . 63Gas boiler system commissioning checklist . . . 64Service record . . . . . . . . . . . . . . . . . . . . . . . . . . 65Appliance category: II2H3 (Gas G20 20 mbar, G30 29 mbar, G31 37 mbar)Country of destination: United Kingdom (GB) Ireland (IE)This appliance conforms with the following EEC directive:Gas Directive Gas 2009/142/ECEfficiency Directive 92/42/EECElectromagnetic Compatibility Directive 2014/30/EULow Voltage Directive 2014/35/EUEcodesign Requirements Directive 2009/125/ECThe manufacturer, in the continuous process to improve his products, reserves the right to modify the data expressedin the present documentation at any time and without prior notice.The present documentation is an informative support and it can not be considered as a contract to-wards third parties.-7-
APPLIANCE DESCRIPTION1APPLIANCE DESCRIPTIONOverview1.1The model and serial number of the boilerare printed on bottom right side.9 D.H.W. temperature control knob10 Appliance operation lights1.3Isolation valvesProvide for the installationof a stop valve on the D.C.W.inlet pipe.USE116 1523Fig. 1.11231.245678Control panelC.H. circuit temperature and pressuregaugeTime switch (C.H. control)Lock-out signal lampLockout reset buttonFunction selector and C.H. temp. control knob-8-1091112Fig. 1.2Case front panelControl panelControl panel coverFig. 1.314 138761112131415161.4Condensate drain pipeC.H. return valveD.C.W. inlet valveGas inlet valveD.H.W. outlet pipeC.H. flow valveTechnical dataFor detailed technical data see sections"Technical Data" on pag. 28 or pag. 32.54
APPLIANCE DESCRIPTIONOperation lightsThree lights (10 in Fig. 1.3) give detailedindication regarding the operation of theboiler.The following table gives the relationshipbetween each of the possible light combinations and their meaning.Faulty C.H. temperature probe NTCFaulty D.H.W. temperature probe NTCFaulty flue temperatureprobe NTCFaulty primary circuit(no water or low C.H.pressure)Faulty primary circuit(absence of flow)A short pulse every4 seconds: stand-byconditionposition.Anti-freeze system active1 second pulse every2 seconds: normallyoperating boiler. Function selector inFaulty air pressuresensorLack of burner ignition(no ignition signal fromthe full sequence ignition device)Safety thermostat lockoutorpositionC.H. operationD.H.W. operationFlue temperature probeNTC lock outFrost protect operationFlame detection errorD.H.W. operationExcessive temperatureon primary circuitIf the lights combination observed is notincluded in the above table a fault may beindicated.Reference should be made to the followingtable.In this case switch off the boiler, as described in section "Switching off" to page 13and call a competent and responsible Service Engineer.Other faultsLack of power supplyor fauly electr. controlp.c.b.Meaning of symbols:Lamp OFFLamp ONFlashing lamp, alone or simultaneously with an other lampFlashing lamp, alternate with another lamp-9-USE1.5
INSTRUCTIONS FOR USE2USE2.1INSTRUCTIONS FOR USEWarningsBiasi UK Ltd support the Benchmark initiative. The Benchmark Checklist is locatedat the back of this manual and should becompleted by the Installing/Commissioning Engineer and handed over to the Userfor future reference by other visiting Engineers. Also included is the Service IntervalRecord card that should be completed bythe Service Engineer following the annualservice maintenance of the boiler and system.All Gas Safe Registered Installers carry aGas Safe ID card, and have a registrationnumber. Both should be recorded in yourBenchmark Checklist. You can check yourInstaller is registered by calling Gas Safedirect on 0800 408 5500, or go on line atwww.GasSafeRegister.co.uk.In order to guarantee safety and correct operation, it is essential that all the tests arecarried out by a competent and res
User manual and Installation instructions Riva Plus HE ERP Models G.C. Appl. No. RIVA PLUS HE 24C ERP 47-583-41 COMBI BOILER RIV A PLUS HE 28C ERP 47-583-42 COMBI BOILER - 2 - WAG Congratulations on your choice. Riva Plus HE ERP are condensing high efficiency sealed chamber fan flue gas boilers. They are fully electronically controlled and have electronic ignition. The materials they are made .
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This installation manual is part of and shipped with the unit, and contains information on its safe installation. Read this installation manual completely before installing the unit. This installation manual must be kept available to installers at all times at the installation loca- tion. Keep this installation manual on hand throughout
user manual. The user manual will give you the information you need to operate the ap-pliance properly and safely. Carefully read this user manual prior to using the appliance. Keep the user manual AND the installation manual in a safe place. As a user you are only entitled to perform the work described in the user ma-nual.
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