VOKERA RAIN 24 Installation And Servicing Instructions Download Page 1

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Installation

& Servicing

Instructions

THESE INSTRUCTIONS
TO BE RETAINED
BY USER

24/28/bi

Summary of Contents for RAIN 24

Page 1: ...lation Installation Installation Servicing Servicing Servicing Servicing Servicing Instructions Instructions Instructions Instructions Instructions THESE INSTRUCTIONS TO BE RETAINED BY USER 24 28 bi 24 28 bi 24 28 bi 24 28 bi 24 28 bi ...

Page 2: ...ng system 11 5 3 Initial filling of the system 11 5 4 Initialflushing 11 5 5 Pre operationchecks 11 5 6 Initiallighting 11 5 7 Checking the burner pressure 11 5 8 Final flushing of the heating system 12 5 8 1 Inhibtors 12 5 9 Settingtheboileroperatingtemperature 12 5 10 Setting the system design pressure 12 5 11 Regulating the central heating system 12 5 12 Final checks 12 5 13 Instructing the use...

Page 3: ...central heat ing boilers which by design incorporates electronic ignition circulating pump expansion vessel safety valve pressure gauge and automatic by pass They are produced as category II2H3 appliances suit able for wall mounting applications only They are pro vided with a fan powered flue outlet with an annular co axial combustion air intake that can be rotated horizon tally through 360 degree...

Page 4: ...hereafter the boiler s output will either be increase to maximum or modulate to suit the set requirement When the appliance reaches the desired tem perature the burner will shut down and the boiler will perform a three minute anti cycle timer de lay When the request for heat and or hot water has been satisfied the appliance pump and fan may continue to operate to dissipate any residual heat within...

Page 5: ... 654 box 450 mm 654 box Depth 250 mm 257box 250 mm 257box Dry weight 35 kg 31 kg 35 kg 31 kg 2 5Clearances Sides 12 mm Top 150 mm from casing or 25 mm above flue elbow whichever is applicable Bottom 150 mm Front 600 mm 2 6Connections Flow return 22 mm compression Gas 15 mm compression Safety valve 15 mm copper 2 7 Electrical Voltage 230V 50hz Powerconsumption 125 W Internal fuse 2 AL External fuse...

Page 6: ...m F Below balcony car port roof etc 200 mm G To the side of a soil drain pipe etc 150 mm H From internal external corner or boundary 300 mm I Above ground roof or balcony level 300 mm J From a surface or boundary facing the terminal 600 mm K From a terminal facing a terminal 1200 mm L From an opening in the car port into the building 1200 mm M Vertically from a terminal on the same wall 1500 mm N ...

Page 7: ...tobuildingproductslocatednearby The terminal must not be located in a place where it is likely to cause a nuisance see I S 813 In cold and or humid weather water vapour may condense on leaving the terminal the effect of such pluming must be considered If installed less than 2m above a pavement or platform to whichpeoplehaveaccess includingbalconiesor flat roofs the terminal must be protected by a ...

Page 8: ...3A 8 MOUNTING ON A COMBUSTIBLE SURFACE If the appliance is to be fitted on a wall of combustible material a sheet of fireproof mate rial must protect the wall 3A 9 TIMBER FRAMED BUILDINGS If the appliance is to be fitted in a timber framed building it should be fitted in accordance with I S 813 and local Building Regulations The Institute of Gas Engineers publication IGE UP 7 Guide for Gas Install...

Page 9: ...et 4 3 1 UNPACKING At the top of the carton pull both sides open do not use a knife unfold the rest of the carton from around the appliance carefully remove all pro tective packaging from the appliance and lay the accessories etc to one side Protective gloves should be used to lift the appliance the appliance back frame should be used for lifting points 4 3 2 PREPARATION FOR MOUNTING THE APPLI ANC...

Page 10: ...all and mount the appliance to the wall bracket NOTE The fixing holes for the wall mounting bracket shouldbedrilledandplugged andanappropriate type and quantity of fixing should be used to ensure that the bracket is mounted securely 4 5 FITTING THE FLUE The Vokera Uni flue concentric system and the 80mm 80mm parallel twin flue system can be used with the appliance enclosure whilst the standard60 1...

Page 11: ...s screws supplied connect the flue assembly to the boiler ensuring that the terminal protrudes past the outside surface of the enclosure by the correct length 135mm 4 5 1 3 TELESCOPIC FLUE KIT 2359119 Connect the 60mm push fit connection of the flue bend supplied to the telescopic flue assembly using a twisting action Insert the assembled flue through the enclosure hole Using the clips screws supp...

Page 12: ...rges safely without causing damage or injury but is still visible 4 7 ELECTRICAL CONNECTIONS The electrical supply must be as specified in 3 7 3 7a The appliance is supplied pre wired with a 1 0 metre length of flex connect the wires as follows Fig 9 gas safety valve flow return connect the Brown wire to the L Live terminal of the plug or fused isolator connect the Blue wire to the N Neutral termi...

Page 13: ...e heating system are closed Using the method of filling as de scribed in fig 5 slowly proceed to fill the system As water enters the system the pressure gauge will begin to rise Once the gauge has reached 1 BAR close the filling valve and begin venting all manual air release valves starting at the lowest first It may be necessary to go back and top up the pressure until the entire system has been ...

Page 14: ...red value pullleveronheadofsafetyvalvetorelease water until the required figure registers on the pressure gauge see fig 1 5 11 REGULATING THE CENTRAL HEATING SYS TEM Fully open all radiator and circuit valves and run the appliance for both heating and hot water until heatedwateriscirculating Ifconditionsarewarm remove any thermostatic heads Adjust radiator return valves and any branch circuit retu...

Page 15: ... the entire flue assembly Compare the results with the appli ance design specification Any deterioration in performancemustbeidentifiedandrectifiedwith out delay Ensure both flue venturis are clean and free from any debris or obstruction Ensure both the burner and heat exchanger are clean and free from any debris or obstruction Inspect all joints for signs of leakage and repair if necessary Refer ...

Page 16: ...over run should the temperature of the NTC thermistor exceed 78 C after a heating or hot water request the pump and or fan will run for a period of 30 seconds SARA function the SARA function permits the boiler when the set point is within the SARA range to automatically adjust raise the flow outlet temperature should the room ther mostat contacts remain closed for more that 20 minutes SECTION 7 CH...

Page 17: ... the outer 10mm nut clockwise to increase or counter clockwise to decrease the burner pressure NOTE You should ensure that all radiators or heat emitters are fully open during the above proce dure This will ensure that the output of the boiler burner pressure is not compromised due to a high flow temperature It may be necessary to fit a jumper tag to the main PCB JP2 in order to cancel the timing ...

Page 18: ...tribut able to any aspect of the installation 7 6 1 INSTALLATION FAULTS 7 7 ELECTRICAL CHECKS Any electrical checks must be carried out by a suitably qualified person 7 7 1 EARTH CONTINUITY TEST Isolate the appliance from the electrical supply and using a suitable multi meter carry out a resistance test Connect test leads between an appliance earth point and the earth wire of the appliancesupplyca...

Page 19: ...heating output 75 of maximum at start up JP3 for LPG boilers only JP4 N A NOTE Restoretheelectricalsupplytotheboilerandturn the selector switch to the on position The boiler should now function as described in section 7 2 Should the boiler fail to respond the internal fuses and connectors should be checked to ensure integrity and continuity If the boiler still fails to respond refer to the detaile...

Page 20: ...e of the voltage free type and should be connected to the appliance as shown in fig 16A 8 4 OTHER CONTROLS Contactthecontrolsmanufacturerand orVokera technical department should you require more specific information on the suitability of a particu lar control Further guidance on the recommended practice for the installation of external controls can be found in CHeSS HC1 HC2 www energy efficiency g...

Page 21: ...19 24 28 bi 24 28 bi 24 28 bi 24 28 bi 24 28 bi FUNCTIONAL DIAGRAM NOTE L N E CONNECTION IS ADVISABLE Fig 17 ...

Page 22: ...676 10024676 10024676 26 Front panel 10027710 10027710 10027710 10027710 27 Cover 10024687 10024687 10024687 10024687 31 Case 10024692 10024692 44 Cover 10024686 10024686 10024686 10024686 60 Control panel brackets 01005307 01005307 01005307 01005307 64 Frame 10024660 10024660 10024660 10024660 66 Cover 10024694 10024694 87 Knob support and gear wheel kit 01005306 01005306 01005306 01005306 90 Tdc...

Page 23: ...1821 10021821 10021821 10021821 22 Safety valve 2907 2907 2907 2907 27 Heating cock 1789 1789 1789 1789 31 Venting plugs kit 01005137 01005137 01005137 01005137 50 Cover 10025591 10025591 63 Pipe 10027841 10027841 200 Washer 5023 5023 5023 5023 266 Washer 5237 5237 5237 5237 353 Ogive 1824 1824 400 Wiring harness 10027713 10027713 10027713 10027713 266 266 27 27 50 1 22 9 3 31 7 353 353 200 400 ...

Page 24: ...024672 10024672 10024672 8 Heat exchanger 10023651 10024301 10023651 10024301 9 Pipe 10027709 10027709 10027709 10027709 11 Bracket 1642 1642 1642 1642 12 Washer 2226 2226 2226 2226 28 Pump lock key 9263 9263 9263 9263 201 Washer 5026 5026 5026 5026 288 O Ring 6898 6898 6898 6898 289 Clip 2223 2223 2223 2223 290 Clip 2165 2165 2165 2165 299 Washer 10022726 10022726 10022726 10022726 417 High limit...

Page 25: ...24668 10024668 13 Gas valve 10021021 10021021 10021021 10021021 14 Gas valve solenoid 10020838 10020838 10020838 10020838 15 Gas cock 10020897 10020897 10027806 10027806 16 Cover assembly 10024779 10024779 10024779 10024779 18 Glass 10021558 10021558 10021558 10021558 27 Hole cover 10023805 10023805 10023805 10023805 200 Washer 5023 5023 5023 5023 300 Ng conversion kit 01005225 01005225 01005225 0...

Page 26: ... 2231 2231 2231 4 Front insulating panel 2232 2232 2232 2232 10 Fan 10020793 10023907 10020793 10023907 12 Fan connection 10021972 10021972 10021972 10021972 20 Fumes testing connection pipe 10021973 10021973 10021973 10021973 25 Pressure diff switch 01005272 10023908 01005272 10023908 28 Stop clip 10020626 10020626 10020626 10020626 4 25 12 28 20 10 2 3 3 ...

Page 27: ...emit ters are fully open during the above procedure This will ensure that the output of the boiler burner pressure is not compromised due to a high flow temperature 10 1 TECHNICAL DATA GAS PRESSURES 24 24 bi 28 28 bi Inlet gas pressure 37 mbar 37 mbar Burner pressure maximum 36 00mbar 36 00mbar Burner pressure minimum 7 30 mbar 6 80 mbar Maximum gas rate 2 04 kg h 2 37 kg h Minimum gas rate 0 87 k...

Page 28: ... Web www vokera co uk Sales Technical Advice General Enquiries Tel 0870 333 0520 Fax 01442 281403 After Sales Service Tel 0870 333 0220 Vokèra Ireland West Court Callan Co Kilkenny Tel 05677 55057 Fax 05677 55060 Vokèra Ltd reserve the right to change the specifications without prior notice Consumers statutory rights are not affected A Riello Group Company ...

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