Ferroli F24 Installation, Service And User Instructions Manual
Copper wall-mounted combination, gas fired boiler for central heating and domestic hot water production, fan assisted, room sealed compartment, electronic flame ignition and control
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- Page 1 Copper Wall-Mounted Combination as Fired Boiler for Central Heating omestic Hot Water Production Fan Assisted oom ealed Compartment Electronic Flame gnition and Control CE A 47- 67- 3...
- Page 2 You can check to the CORGI registered by calling CORGI on 01256 372300". Ferroli is a member of the enchmark initiative and fully supports the aims of the programme. enchmark has been introduced to improve the standards of installation and commissioning of central heating...
- Page 3 1.01 Introduction rro i is d fin d as a “room s al d” combination boil r, all air r quir d for combustion is tak n from outsid t room in w ic it is install d. It is a n w ig p rformanc gas fir d at g n rator for c ntral ating and dom stic ot wat r production.
- Page 4 2.01 Technical information Ferroli F24 boilers are central heating and domestic hot water heat generators and are produced as standard to function with natural gas or Liquid Petrolium Gas converted appliances. 100 25 Distance between connections Fig. 1 Top view...
- Page 5 Te hni a Domestic hot Boiler water Domestic hot water heat Heat output Heat input contents water contents input MODEL Litres Litres Ferroli F24 23,8 25,8 11,5 23,8 Max. working Max. pressure Connections Expansion vessel working central pressure hot heating...
- Page 6 2.02 Boiler mai om o e t 2.03 Boiler water fl ow diagram FLUE 85 44 Fig. 3 °C °C C.H. D.H.W. D.H.W. C.H. Fig. Room sealed compartment r press u re s w tc h nlet D omest c h ot w ater o u tlet er h eat t h ermostat D omest c h ot w ater...
- Page 7 2.04 Central heating adjustment (not normally required) To adjust boiler heat input (thus also regulating heat output to the central heating water) simply adjust the main burner via the electronic control board (fi g. 4 and 5 and see paragraph 5.04 page 29). The diagrams indicate the variation in heat output to the water as burner working pressure is varied.
- Page 8 .06 Pump ara eris i s he pump head available for circulating the ater is given in g. . N. . he pump is factor set at position 3. he pump is a rundfos t pe 15 50 S series. Gru d os Pump per orma e grap No e...
- Page 9 Gas Safety (Installation & Use) Regulations: 1996 In the interest of safety, it is t e la that a as a ian es are insta e y a o etent erson in a or an e ith the a o e e ations, i in ations...
- Page 10 Central Heating Detailed recommendations are given in BS6798, BS5449, BS6700 and CP342 Part 2. Pipework not forming part of the useful heating surface should be insulated to prevent any heat losses or possible freezing (i.e. in roof spaces or ventilated underfl oor spaces). Drain taps should be positioned at the lowest point of the system in accessible locations to permit the whole system to be drained down.
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Page 11: Terminal Position
5 min. 5 min. 50 mm CLEARANCES: * 600mm minimum clearance for servicing access Top clearance only applies to 100Ø concentric fl ue system 600* min. Fig. Terminal Position D, E inim m imensions o e terminal ositions Balanced flues room Open flues sealed Dimensions... - Page 12 3.01 Drilling Template (Top Flue Application) Select suitable mounting position for boiler, using the template mark fl ue outlet and boiler mounting points. Drill two 10mm holes 70mm deep to accept the wall plugs. Fit standard wall plugs on the left and right side and the special wall plug in the middle (fi...
- Page 13 3.02 Restrictor For boiler operation, the restrictor supplied with the unit must be mounted following the instructions below. Determine the correct size of fl ue restrictor required. Before inserting the fl ue gas duct in the boiler, check that the restrictor fi tted is correct and that it is correctly positioned (see fi g. 14). N.B.
- Page 14 3.03 Top Outlet Concentric Flue Connection 3.03.1 Vertical concentric connection A vertical connector can be supplied for vertical discharge with concentric pipes. The simple mounting and use of double lip gaskets Concentric at the joints makes this an extremely easy and safe Vertical option.
- Page 15 100 mm concentric Maximum flue lenght permissible Vertical Horizontal* Vertical Horizontal* Ferroli F24 or horizontal lueing the re uction or a liance en or turret are alrea inclu e . Reduction for bend 100 mm concentric bend 90° 100 mm concentric bend 45°...
- Page 16 2 in remaining air intake. A varied number of accessories for two pipe systems are available from Ferroli (ref. to page 17). Before installing your system please check via calculation table at 3.08.2 you are not exceeding the maximum permissible length for the appliance.
- Page 17 3.04.3 (continued) Reduction Reduction Tab. 1 - Pipes and Flue Flue fi ttings reduction table Description Description Ø Ø Ø...
- Page 18 For further accessories please refer to: Attention: Resistance of fl ue restrictor (if req.) is included (see table on page 13) "Flue system manual for room sealed Remove the fl ue restrictor. boiler"Example of calculation for wall The fl ue and air pipes must have an inclination inlet/outlet with 2 pipe system downward equal to 3% from boiler to outside.
- Page 19 3.05 For installation (back flue connection): For direct back flue connection it is necessary to use the optional kit 1KWMR04A, and it is required to alter the fan direction inside the boiler. Follow carefully next procedure: Re o e fan by pullin off electri cal connections.
- Page 20 Fix with the screws (b). Refi t wiring connections to fan and air pressure switch tubes ensuring correct orientation. I.E. red tube to air pressure switch connection with red dot (+) and clear tube to air pressure switch connection with no paint marking (-). Fit the fan into the boiler rotating the front to engage with the pin a.
- Page 21 Drilling Template (Rear Flue Application) Select suitable mounting position boiler, using the template mark fl ue outlet and boiler mounting points. Drill two 10mm holes 90mm deep to accept the wall plugs, fi t wall plugs. Fit two special wall plugs on the wall as described in the fi...
- Page 22 Back fl ue outlet (Diagram 1-9) 1 Core drill 127mm hole (5"). h hro h he o er Gen ly p ll back n il wall eal h wi h he wall. Fig. Fig. Fig. lace wall pla e on o er en rin i i le el.
- Page 23 Install the inner metal fl ue into the outlet, up to ake sure the inner fl ue is ull engage the fl ue terminal, se ure oiler with two nuts the wallplate fl ange mark. an washers, se ure ottom o oiler using two i t oiler with fl...
- Page 24 3.06 Connecting the central heating and domestic hot water circuits Connect to the relevant connections as indicated in fi g. 1. Connect the pressure relief valve discharge pipe (15mm) to the outside of the building, where possible over a drain. The discharge must be such that it will not be hazardous to occupants and passers-by or cause damage to external electric components or wiring.
- Page 25 : If the power supply cable has to be replaced, use “0.75mm (24/0.20) heat resisting cable only to BS6500 with a maximum external diameter of 8 mm. When connecting a room thermostat or external timer, do not link the power supply of these devices to the switching contacts.
- Page 26 4.01 Checks to be carried out before starting up for the fi rst time When starting the boiler up for the fi rst time check: • that the gate valves between the boiler and central heating systems are open; • that the central heating system is fi lled and vented; •...
- Page 27 • Check that the gas valve modulates correctly both during the central heating phase and the domestic hot water production phase. • Determine the combustion effi ciency and the composition of the fl ue gases (refer to 6.04) • If any of the above are not correct refer to Technical Data (page 5). Adjustment (refer to 5) and Fault fi...
- Page 28 Customer Technical ervice Helpline. 5.09 Gas con ersion The following adjustment and conversion operations must be carried out by competent personnel. FERROLI Limited accepts no liability for damage to property or personal injury resulting from tampering with the boiler by unauthorised persons.
- Page 29 The following operations must be carried out by Corgi registered engineers only. 6.01 Annual Servicing The following should be checked at least once a year: • Water pressure in the central heating system when cold should be about 1 bar. If this is not the case, bring it back to this value.
- Page 30 19. Reconnect ignition and fl ame rectifi cation leads. 20. Reconnect gas union and tighten. 21. Refi t combustion chamber cover, secure with screws. 22. Examine seals on room sealed cover refi t cover and secure with screws. 23. Turn on gas and electricity. 24.
- Page 31 7.01 Initial procedure a) The boiler is cold, electricity supply is isolated, and the gas supply is turned off at the inlet of the boiler b) For replacement of parts where water connections are broken, it will be necessary to isolate and drain either or both the central heating or domestic hot water circuits of the boiler only.
- Page 32 7.05 Gas valve • Isolate as and electricity supplies • Remove outer case two screws bottom rear corners • Remove the two securin screws and lower control panel • Disconnect electrical connections from valve "A" • Disconnect plastic tube "C" •...
- Page 33 7.08 Removal of burner • Isolate as and electricity supplies • Remove outer case two screws bottom rear corners • Remove room sealed cover • Disconnect i nition and flame recti cation leads "A" • undo as rail union "B" •...
- Page 34 7.12 Spark or fl ame detect electrode (fi g. 38) • Isolate gas and electricity supply • Remove outer case (two screws bottom rear corners) • Open room sealed compartment and combustion chamber • Identify electrode from fi g. 38 •...
- Page 35 7.14 Pump (fi g. 40) Replacement of pump head • Isolate electricity and fl ow and return pipes • Remove casing (two screws bottom rear corners). • Remove the two securing screws and lower control panel • Release pressure from boiler via pressure relief valve •...
- Page 36 Before beginning any fault fi nding ensure that gas, water and electricity are available. WARNING: DO NOT link any terminals on block X10 or X11 as this will damage the PCB beyond repair. 8.01 Operating Sequence ith the power established the boiler is in its stand by mode i. e. power on but no demand. The operational se uence for C.
- Page 37 In order, the fi ve lights indicate: oiler n Indicate oiler h t do n arning o estic ot ater circ it entral eating stand lashing ight entral eating circ it er anent ight Ins fi cient ress re in entral eating lashing ight lectric o er s er anent ight...
- Page 38 8.04 Temperature sensors (thermistors) Identical, but individual, negative temperature co-effi cient (NTC) thermistors are fi tted in the C.H. and D.H.W. outlets from the heat exchanger. As the water temperature increases the resistance in the thermistor decreases. This causes the PCB to reduce the voltage to the modureg, in turn reducing the burner pressure. The wiring for each thermistor is colour coded red for C.H.
- Page 39 8.10 General test and fault fi nding Chart 1 Check electrical supply - C.H. water pressure and frost protection Chek the following carefully before starting • Gas supply is turned on, is adequate and purged • Electricity supply is turned on •...
- Page 40 Chart 2 Check Domestic Hot Water operation Open DHW taps DHW flow rate at least 2,5 litre/min? Check cold water inlet pressure Check and if necessary Is LED3 on? replace DHW Sensor Check if water filter is clean Check and if necessary replace Flow Sensor Is LED4 flashing? Check and if necessary...
- Page 41 Chart 4 Check fan/fl ue gas system Does fan run? Is air pressure switch activated? Is relay RY100 switch ON? Go to chart 5 Differential air pressure across the air pressure Go to charts 2-3 switch is greater than 180 Pascal? Check and if necessary replace Is 230V present across...
- Page 42 Chart 6 Check ignition system Is LED1 light on? Is LED2 on Does sparking start without at burner? the boiler sparking Does burner light? Go to chart 6 Re-check air pressure switch Check and if necessary Is LED2 on replace safety thermostat after 10 seconds? Check electrodes and Check and if necessary...
- Page 43 9.01 Ma n components layout on electron c boar s Potent ometer a ustment P1 = entral heating ow te erature ad ust ent P2 = Do esti hot water te erature ad ust ent P3 = entral heating ow out ut ad ust ent = gnition gas ressure ad ust ent ini u gas ressure ad ust ent...
- Page 44 9.02 General wiring diagram...
- Page 45 °C °C Fig. KEY DESCRIPTION Switch OFF/ON/RESET Burner on indicator Central heating flow temperature regulation Boiler shut down warning D.H.W. temperature Domestic hot water circuit on regulation Central heating stand-by Water pressure gauge Central heating circuit on Insufficient pressure in central heating system Time clock (option) Electric power supply The boiler is designed for use with two types of gas: natural gas NG or propane (LPG).
- Page 46 In the e ent of the red lockout light ( ) coming on the on off reset switch (A) should be turned clockwise against the spring tension to the reset position and released (this will put the boiler into three minute delay if in the heating mode).
- Page 47 A 24 hour time clock is fi tted to the boiler to control the central heating, this will come into operation when the selector switch is turned to the position marked “heating timed and hot water”. lide switch: set clock auto set programme AUTO AUTO ispla .
- Page 48 Should ou re uire help ith an diffi culties call our Technical Service Helpline on 08707 282 885 Phone numbers: Installer Service Engineer ALL SPECIFICATIONS SUBJECT TO CHANGE Please note - to avoid incurring unnecessary expense, in the event of a boiler shut down, check this in not caused by lack of electricity supply, gas supply or low water pressure before calling our Customer Service Helpline.