Ferroli F 24 B Instructions For Installation, Use And Maintenance Manual
Wall-mounted gas fired, condensing combination boiler instructions for use, installation and maintenance
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Summary of Contents for Ferroli FERROLI F 24 B
- Page 1 FERROLI F 24 B wall-mounted gas fi red, condensing combination boiler INSTRUCTIONS FOR USE, INSTALLATION AND MAINTENANCE...
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Page 2: Declaration Of Conformity
“This record must be completed and left with the end user”. Ferroli is a member of the Benchmark initiative and fully supports the aims of the programme. Benchmark has been introduced to improve the standards of installation and commissioning of central heating systems in the UK and to encourage the regular servicing of all central heating systems to ensure safety and efficiency. -
Page 3: Table Of Contents
Ferroli F 24 B 1. OPERATING INSTRUCTIONS..............4 1.1 Introduction ......................4 1.2 Control panel ......................5 1.3 Operating instructions ....................6 1.4 Adjustments ......................6 1.5 Maintenance......................7 1.6 Faults........................7 1.7 Time Clock ......................8 2. INSTALLATION ..................9 2.1 General Instructions....................9 2.2 Boiler location .......................10 2.3 Boiler water connections ..................12 2.4 Connection to the gas system ................14... -
Page 4: Operating Instructions
Please read this manual carefully and keep it for future reference. FERROLI F 24 B is a high-effi ciency condensing appliance for heating and hot water production run- ning on natural or liquefied petroleum gas (configurable at the time of installation) and regulated by an advanced microprocessor control system. -
Page 5: Control Panel
Ferroli F 24 B 1.2 Control panel °C °C 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 (Flashing light) Water pressure gauge... -
Page 6: Operating Instructions
Ferroli F 24 B 1.3 Operating instructions Ignition • Open the gas isolation valve upstream of the boiler. • Purge the air from the pipe upstream of the gas valve. • Ensure power is on to appliance. • Turn the switch A (fig. 1) to the ON position. -
Page 7: Maintenance
If the problem remains after two attempts at resetting, contact the Ferroli Service Centre. For other faults, refer to section 3.4 “Troubleshooting.” Before calling the Ferroli service centre, check that the problem is not due to an installation error or a problem with the gas/electricity or low water pressure in the system. -
Page 8: Time Clock
Ferroli F 24 B 1.7 Time Clock A 24 hour time clock is fitted 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”. -
Page 9: Installation
Ferroli F 24 B 2. INSTALLATION 2.1 General Instructions This device must only be used for the purpose for which it is specially designed. This unit is designed to heat water to a temperature below boiling point and must be connected to a hea- ting system and/or a water supply system for domestic use, compatible with its performance, characteristics and its heating capacity. -
Page 10: Boiler Location
Ferroli F 24 B 2.2 Boiler location The unit’s combustion circuit is sealed off from the installation room. The installation room must be sufficiently well ventilated to prevent any dangerous conditions from forming in the event of even slight gas leakage. This safety standard is required by the EEC Directive no. 90/396 for all gas units, including those with a so-called sealed chamber. - Page 11 Ferroli F 24 B Make Up Water Provision must be made for replacing water lost from the sealed system. Reference should be made to BS6798, for methods of filling and making up sealed systems. There must be no direct connection between the boiler's central heating system and the mains water supply.
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Page 12: Boiler Water Connections
Ferroli F 24 B 2.3 Boiler water connections The heating capacity of the unit should be previously established by calculating the building’s heat requirement according to current regulations. For good operation and long life of the boiler, the plumbing system must be well proportioned and always complete with all those accessories that guarantee regular operation and running, room thermostat, trv’s and automatic bypass. -
Page 13: Water Treatment
Ø22 fig. 7 Water treatment When treatment is used ferroli limited only recommend the use of proprietary Brand, such as Fernox or Sentinel water treatment products, which must be used in accordance with the manufactures instructions. for further information contact: Feronx Manufacturing Co. -
Page 14: Connection To The Gas System
Ferroli F 24 B 2.4 Connection to the gas system If necessary the local Gas supplier should be consulted, at the installation planning stage, in order to establish the availability of an adequate supply of gas. An existing service pipe must not be used whitout prior consultation with the local Gas supplier. -
Page 15: Flue System
The current standards and local regulations must be observed. It should be notes that only Ferroli flue system and accessories should be used on this appliance, as per BS 5440 2000 and C.E. test certification. - Page 16 Ferroli F 24 B Restrictor For boiler operation, the restrictor supplied with the unit must be mounted following the instructions below. Determine the correct size of flue restrictor required. Before inserting the flue gas duct in the boiler, check that the restrictor fitted is correct and that it is correctly positioned (see fig. 9).
- Page 17 Ferroli F 24 B Connection with concentric fl ue system The unit can be connected to a concentric air/flue duct with a wall or rooftop outlet as shown on the following drawings. Numerous accessories are available on request to meet the various installation requirements.
- Page 18 Ferroli F 24 B 5.Connect the flue to the boiler, positioning the seals correctly. Seal the flue into the wall with silicone or sand + cement and cover with wall seals provided. Flue seals should be lubricated with a silicone type grease to prevent damage (grease...
- Page 19 3. Check that the total calculated loss is less than or equal to 55 equivalent metres, i.e. the maximum permissible for this model of boiler. For complete flue options please con- tact FERROLI or check our comprensive flue manual. Table 3 Equivalent Ref.
- Page 20 KWMA83W • 1,00 m KWMA85A Bend 45° Ø 80 mm male - female Vertical flue terminal KWMA65W KWMA84U Bend 90° Ø 80 mm male - female The stated loss values refer to genuine Ferroli fl ue accessories. KWMA01W Terminal Position D, E...
- Page 21 Ferroli F 24 B Minimum Dimensions of Flue Terminal Positions Directly below an opening, air brick, 300mm opening windows, etc. Above an opening, air brick, 300mm opening windows, etc. Horizontally to an opening, air brick, 300mm opening windows, etc. 75mm...
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Page 22: Condensate Outlet Connection
Connection to collective fl ues or single fl ues with natural draught If you are then going to connect the Ferroli F 24 B boiler to a collective flue or a single flue with natural draught, the flue must be expressly designed by professionally qualified technical personnel in confor- mity with the standards and rules in force. - Page 23 Ferroli F 24 B Condensate discharge Where possible the condensate should discharge into an internal soil pipe or waste system. The minimum pipe diameter required is 22 mm, a trap has already been fitted to the appliance with a flexible tail to facilitate the connection to the condensate discharge pipe.
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Page 24: Service And Maintenance
All adjustment and conversion operations must be carried out by Qualified Personnel such as the Ferroli Technical Service. FERROLI declines any responsibility for damage or physical injury caused by unqualified and unauthorized persons tampering with the device. Adjusting the pressure and fl ow rate to the main burner This boiler operates on the flame modulation principle. - Page 25 Ferroli F 24 B Adjustment potentiometers P1 = C.H. temperature adjustment P2 = D.H.W. temperature adjustment P3 = C.H. output adjustment P4 = Ignition gas pressure adjustment Fig. 16 P5 = Minimum gas pressure adjustment Adjusting maximum output for central heating system (fi g. 16) This adjustment must be carried out electronically using the “P3”...
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Page 26: Initial Start-Up
Ferroli F 24 B Gas conversion The following adjustment and conversion operations must be carried out by competent personnel. FER- ROLI Limited accepts no liability for damage to property or personal injury resulting from tampering with the boiler by unauthorised persons. -
Page 27: Maintenance
Ferroli F 24 B Shutting down Close the boiler isolation gas cock and turn off the electricity to the boiler. Important: If the boiler is not to be used for lengthy periods during the winter, to avoid frost damage, you are recommended to drain the water from the circuits (domestic hot water and central heating). -
Page 28: Servicing Procedure
Ferroli F 24 B tion of the thermostats, gas valve and pump. Servicing procedure Visually check boiler for correct intallation and flueing. Isolate electricity supply + check fuse is 3amp. Remove case by undoing the two screws located at the bottom rear corners, lift slightly and pull forward. -
Page 29: Troubleshooting
Ferroli F 24 B Cleaning the boiler and burner The body and burner must not be cleaned with chemical products or wire brushes. Special care must be taken over all the sealing systems pertaining to the sealed chamber (gaskets, cable clamps, etc.). In addition, it is necessary to pay attention after performing all these operations to check and carry out all the phases of ignition and thermostat operation, the gas valve and circulation pump. - Page 30 Ferroli F 24 B The burner will light at ignition burner pressure, automatically range rating itself up to the heating load, then modulating down when the boiler reaches the desired flow temperature. When the central heating is satisfied the burner will go off and the fan stops i.e. stand-by mode.
- Page 31 Ferroli F 24 B MF03.1 PCB When operating the C.H. the following lights should be on: 4, 5 and flame on light. For D.H.W. the following lights should be on: 3, 5 and flame on light. If the boiler works for C.H. but not D.H.W., or vice versa, a number of components must be functioning and can, therefore, be eliminated as being at fault.
- Page 32 Ferroli F 24 B Main printed circuit board Secured by flour plastic tabs the PCB is situated inside the control compartment. The transformer for low voltage AC is attached to the PCB as is the DC rectifier. Potentiometers control C.H. output and maximum D.H.W.
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Page 33: Technical Characteristics And Data
Ferroli F 24 B 4 TECHNICAL CHARACTERISTICS AND DATA 4.1 Dimensions and connections Top view System flow (22 mm with isolation valve fitted) DHW outlet (15 mm with isolation valve fitted) Gas inlet (22 mm with isolation valve fitted) Cold main inlet... -
Page 34: General View And Main Components
Ferroli F 24 B 4.2 General view and main components Combustion chamber Gas inlet DHW outlet Cold water inlet CH flow CH return Safety valve Combustion chamber Gas injector Ceramic burner Combustion chamber insulation Copper heat exchanger for c.h. + d.h.w. -
Page 35: Hydraulic Diagram
Ferroli F 24 B 4.3 Hydraulic diagram fig. 20 Combustion chamber Gas valve Gas inlet Safety thermostat DHW outlet Expansion vessel Cold main inlet Sparkelektrode CH flow Ionisationelektrode CH return Water pressure switch Heating safety valve Flue gas safety thermostat... -
Page 36: Technical Data Table
Weight with packing Gas system connection 1/2” Heating system connections 3/4” Hot water circuit connections 1/2” Maximum length of separate flues D=80* (*Measurement given in equivalent linear metres – cfr FERROLI calculation system) Electrical power supply Max electrical power absorbed Protection level... -
Page 37: Diagrams
Ferroli F 24 B 4.5 Diagrams Head available for the system = Circulator speed = Boiler losses of head Fig. 21... -
Page 38: Wiring Diagram
Ferroli F 24 B 4.6 Wiring diagram Blue Blue Blue Blue Blue Grey Grey Blue Blue fig. 22... - Page 39 Ferroli F 24 B...
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Page 40: Benchmark
2 6 7 BENCHMARK BENCHMARK No. Please add the first 4 digits of the Boiler serial No to complete the BENCHMARK No. GAS BOILER COMMISSIONING CHECKLIST C O L L E C T I V E M A R K BOILER SERIAL No. - Page 41 SIGNATURE SERVICE 10 SERVICE 9 DATE DATE ENGINEER NAME ENGINEER NAME COMPANY NAME COMPANY NAME TEL No. TEL No. CORGI ID CARD SERIAL No. CORGI ID CARD SERIAL No. COMMENTS COMMENTS SIGNATURE SIGNATURE FERROLI TECHNICAL HELPLINE - 08707 282 885...
- Page 44 Should you require help with any diffi culties call our Technical Service Helpline on 08707 282 885 Phone numbers: Installer Service Engineer BECAUSE OF OUR CONSTANT ENDEAVOUR FOR IMPROVEMENT DETAILS MAY VARY SLIGHTLY FROM THOSE QUOTED IN THESE INSTRUCTIONS. 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.