Chaffoteaux & Maury CORVEC 28 BF Installation Manual Download | Manualshive

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Summary of Contents for CORVEC 28 BF

Page 1: ...chaffoteaux ltd CORVEC 28 OF BF GC No 41 980 28 CORVEC 28 BF OF GC No 41 980 27 installation servicing requirements Leave these instructions at or near the service Gas Meter ...

Page 2: ...MENTS FAULT FINDING CHART SHORT LIST A pump must beinstalled in the water circulation system irrespectiveof whether the systemis of the openor sealed type The CORVEC 28balancedflue version is suppliedin two cartons one containing the boiler and the other contai ning the balanced flue set The CORVEC 28 open flue version is supplied in one carton The guaranteeon this is voidable if it is not install...

Page 3: ... 240 Requiresa nominal 100mm 4 in flue pipe No split col mm wide 6 9 ins x 9 4 ins lar is required Draught diverter is integral GAS CONNECTION R l 2 in 112 in BSP taper male WATER CONNECTIONS Flow R 314 314 BSP on left hand side of boiler viewed from front Return R 314 3 4 BSP he open flue version has male threads R 3 4 the balanced flue female threads Rc 3 4 MINIMUM WATER FLOW RATE 450 L hr 1 65g...

Page 4: ...om ground level Lessthan 600mm 2 ft from any surfacefacing the terminal 4 Immediately beneath eavesor a balcony Where the terminal is less than 2 m 6 6 ft above the level of any ground balcony flat roof or placeto which people have access the terminal must be protected by a guard of suitable material Where a terminal guard has not beensupplied optional extra with the boiler onemay beobtained from ...

Page 5: ...ut and any neces sary action taken 3 6 Water Circulation Systems Open or sealedtype central heating systemsshould bein accordancewith the relevant recommendations given in BS 5376 2 BS 5449 1 for smallbore or microbore systems and the British Gaspublication entitled Mate rial and installation Specifications for Domestic Central Heating and Hot Water 1 Hot water systemsshould bein accordancewith th...

Page 6: ...re that the sealbetween the heat exchangerand the flue bend is madeevenly and securely 4 3 2 Open Flue Version The boiler is attached to the wall by a bracket at the top the boiler and by two screwsat the bottom Using the dimensions detailed in 2 TECHNICAL DATA mark the position of the fixing holes for wall mounting plate ensuring adequetespacefor connection to the flue pipe Remove the boiler cove...

Page 7: ... Hot Water and Heating Controls Hot Water and Heating Pump Time Clock Non Electrical Hot Water Control and Electrical Heating Control Hot Water and Heating Pump Time Clock Non Electrical Heating Control and Electrical Hot Water Control The following diagrams show typical control schemes using electrical controls only TIME CLOCK CYLINDER PIMP THERMCSTAT TIME CLOCK Row TMERYOSTAT PlM ROON THERMOSTAT...

Page 8: ...p in the return It may be fitted in the flow as shown in fig 14 providing that there is a minimum of 2 metres 6 5 ft static head betweenthe water level in the feed and expansion tank and the top of the boiler casing 5 5 System By Pass A valved systemby passas shown in figs 13and 14may be required to ensure adequatewater flow through the boiler The by passshould be a 15mm l 2 in pipe with a suitabl...

Page 9: ...installation AIR SEPARATOR 6 ins TO BOILER PUMP E e 4 E G E E ua 6ins 150 Fig 15 9 ...

Page 10: ...5 4 9 8 80 17 6 5 6 9 8 7 3 12 3 100 22 0 7 0 12 2 9 1 16 4 120 26 4 8 4 14 6 11 0 19 7 140 30 8 9 8 17 0 12 8 23 0 160 35 2 11 2 19 4 14 6 26 2 180 39 6 12 6 21 9 16 4 29 5 200 44 0 14 0 24 3 18 2 32 8 l 1 bar 14 5 lb f in2 Approx 1 atmosphere or 34 feet head of water Where a vesselof the calculated sizeis not obtainable the next available larger size should be used For the purpose of the above c...

Page 11: ...ovided for above the expansion cistern and cold feedrequired for systemsshall not befitted to sealed systems 11 5 9 Inhibitors Chaffoteaux Limited do not generally recommend the inclusion of an inhibitor with heating and hot water systems utilizing the CORVEC boilers It is however appreciated that the specification for a new installation may require the addition of an inhibitor and the follo wing ...

Page 12: ...en water is pumped through f Test for gas soundness g Check and if necessary adjust the gas rate as detailed in 6 5 6 5 Gas rate Adjustment The boiler is not fitted with a governor To obtain the riquired output it may be necessaryto changethe restrictor situated in the burner manifold fig 17 To alter the heatoutput removethe pilot supply tube and the two screwssecuring the burner manifold to the b...

Page 13: ...leasethe union nuts joining the heating body legsto the water section O F Model Removethe screwholding the bottom of the heating body skirt and clamping plate to the rear case Releasethe union nuts at eachend of the pipes connec ting to the heating body legsand remove 9 1 3 Clean the Pilot Assembly Thermocouple and Spark Electrode Unscrew the pilot tube clamping screw and remove the clamp and tube...

Page 14: ...lding it to the rear case Remove the four fixing screws fastening the top of the gassection to the base N B Provided isolating valvesare fitted it may befound easierif the heating body is removed Lift the gas section top off the base Remove the gasvalve spring Lift out the gasvalve Do not attempt to further dismantle the valve assembly Clean the valve seating and replace the gasvalve facing rubber...

Page 15: ...utput Thermocouple loose Replace Terminal wrongly positioned causing Tighten Installer to resite boiler Fit correctly Replace Re tighten Refit Gas Region to adjust Clean pilot tube or replace pilot injector Low flow rate pump duty not sufficient Water Filter blockad Low flow rate systemvery restrictive Low flow rate air in system Water section spindle bent or dry Diaphragm split or stretched Therm...

Page 16: ...Imp Chaffoteaux et Maury FM 92220 l 18 1182 ...

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