Related Manuals for Ferroli OPTIMAX 25 OV
Summary of Contents for Ferroli OPTIMAX 25 OV
- Page 1 OPTIMAX 25 OV wall-mounting, pre-mixed condensing gas 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 effi... -
Page 3: Table Of Contents
Optimax 25 OV 1. OPERATING INSTRUCTIONS..............4 1.1 Introduction......................4 1.2 Control panel ......................5 1.3 Turning ON and OFF ....................6 1.4 Adjustments ......................6 1.5 Maintenance......................7 1.6 Faults........................7 2. INSTALLATION ..................8 2.1 General Instructions....................8 2.2 Boiler location ......................9 2.3 Water connections ....................10 2.4 Connection to the gas system ................13 2.5 Electrical Connections ..................13... -
Page 4: Operating Instructions
1.1 Introduction Dear Customer, Thank you for choosing Optimax 25 OV, a FERROLI wall-mounted boiler of the latest generation, fea- turing advanced design and cutting-edge technology. Optimax 25 OV is a high-effi ciency condensing pre-mix appliance for heating with extremely low emis- sions, running on natural gas or LPG. -
Page 5: Control Panel
Optimax 25 OV 1.2 Control panel fi g. 1 1 - System temperature adjustment / Summer/Winter selection This knob is used to adjust the system temperature and can switch over between summer / winter. To increase the system temperature, turn the knob clockwise; anticlockwise to decrease it. To select the summer mode, turn it anticlockwise to the minimum setting. -
Page 6: Turning On And Off
Optimax 25 OV 1.3 Turning ON and OFF Ignition • Open the gas isolation valve on the boiler. • Purge the gas supply taking the necessary precautions. • Turn on the electrical switch at the 3amp switched fused spur. • The boiler is now ready to function automatically whenever the external controls are calling for heat. -
Page 7: Maintenance
For other faults, refer to section 3.4 “Troubleshooting”. Before calling the FERROLI Caresafe helpline, check that the problem is not due to there being no gas or electricity, and that all external controls are wired correctly and calling fo heat. -
Page 8: Installation
Optimax 25 OV 2. INSTALLATION 2.1 General Instructions This device must only be used for the purpose for which it is specially designed. This unit is desi- gned to heat water to a temperature below boiling point and must be connected to a heating system and, compatible with its performance, characteristics and its heating capacity. -
Page 9: Boiler Location
Optimax 25 OV 2.2 Boiler location The unit’s combustion circuit is sealed off from the installation room. The installation room must be suffi ciently 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. -
Page 10: Water Connections
Optimax 25 OV 2.3 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. - Page 11 Optimax 25 OV The connecting kits shown in fi g. 4 are supplied as standard. A = Nut B = Compression olive C = Nipple F = 1/2 gas seal - Blue Appliance drain OFF valve fi g. 4 Gas isolation valve Make Up Water This appliance is designed to work on an open vented fully pumped heating system only, (see fi...
- Page 12 Optimax 25 OV Schematic layout for fully pumped heating and hot water. Open Open Vent Vent T o DHW taps Indirect cylinder Motorised valve 22 mm Isolating valve Balancing valve Indirect coil missing max. 150 mm Drain Isolating valve Motorised valve...
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Page 13: Connection To The Gas System
Optimax 25 OV Water treatment When treatment is used ferroli limited recommend only the use of Fernox or Sentinel water treatment products, which must be used in accordance with the manufactures instructions. for further information contact: Fernox Manufacturing Co. LTD. - Page 14 Optimax 25 OV Central heating request The heat demand can be done by the room thermostat (terminal 4-5) or by a switch line phase 230 V (terminal 4). Standard Systems For a general pipe layout and wiring diagram on the “S” and “Y” plan systems please see fi g.
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Page 15: Wiring Diagram
Optimax 25 OV Optimax “Y” Plan Pipe layout A.A.V A.A.V Auto air vent OPTIMAX FERROLI BOILER Balancing valve *Note: cold feed and expansion not shown for clarity (see fig. 5) Automatic bypass fi g. 7a (mimimum flow of 6LTR/min.) Wiring diagram... -
Page 16: Flue System
The current standards and local regulations must be observed. It should be noted that only Ferroli fl ue system and accessories should be used on this appliance, as per BS 5440 2000 and C.E. test certifi cation. - Page 17 Optimax 25 OV Connection with concentric fl ue system The unit can be connected to a concentric air/fl ue 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 Optimax 25 OV 4. If necessary, cut the end pipe to size, ensuring that the external pipe protrudes from the wall by between 10 and 60 mm (fi g. 10a and 10b). Remove the cutting burrs. 5. Connect the fl ue to the boiler, positioning the seals correctly. Seal the fl ue into the wall with silicone or sand + cement and cover with wall seals provided.
- Page 19 Optimax 25 OV Connection with 80 mm pipe system Ø80 Ø80 The unit can be connected to a system of sepa- FUMES rate air/fume ducts for a wall or rooftop outlet KWMR54A as shown on the drawings 11 - 12 alongside.
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Page 20: Terminal Position
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 fi g. 13... - Page 21 Optimax 25 OV 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 Below gutters, soil pipes or drain pipes...
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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 Optimax 25 OV boiler to a collective fl ue or a single fl ue with natural draught, the fl ue must be expressly designed by professionally qualifi ed technical personnel in conformity with the standards and rules in force. -
Page 23: Condensate Discharge
Optimax 25 OV 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 fi tted to the appliance with a fl exible tail to facilitate the connection to the condensate discharge pipe. -
Page 24: Service And Maintenance
All adjustment and conversion operations must be carried out by Qualifi ed Personnel such as the per- sonnel of the Local After-Sales Technical Service. FERROLI declines any responsibility for damage or physical injury caused by unqualifi ed and unauthorized persons tampering with the device. -
Page 25: System Start-Up
Optimax 25 OV 3.2 System start-up Commissioning must be performed by Qualifi ed Personnel. Checks to be made at fi rst ignition, and after all maintenance operations that involved discon- necting from the systems or an intervention on safety devices or parts of the boiler: Before lighting the boiler: •... -
Page 26: Maintenance
Optimax 25 OV 3.3 Maintenance The following operations are strictly reserved for Qualifi ed Personnel, such as corgi registered engineers or Ferroli personnel. Seasonal inspection of the boiler and fl ue It is advisable to carry out the following checks at least once a year: •... -
Page 27: Combustion Analysis
Optimax 25 OV Opening the casing To open the boiler casing, you need to follow the sequence given below and the instructions of fi g. 17. 1 Using a screwdriver, fully unscrew the 2 screws “A ” 2 Open by lowering the panel “B ”... -
Page 28: Troubleshooting
Optimax 25 OV 3.4 Troubleshooting Fault Diagnosis In the event of operating problems or trouble, the display fl ashes and a fault identifi cation code appears. There are faults that in order to restore operation the RESET button must be pressed or (ref.2 - fi g. 1);... - Page 29 Optimax 25 OV Fault Possible cause Cure Software fault • Software operating fault • Cut off and restore the electricity supply. If the trouble remains, check and/or change the main CVBC • Detection electrode faut • Check that the electrode is correct...
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Page 30: Technical Characteristics And Data
Optimax 25 OV 4 TECHNICAL CHARACTERISTICS AND DATA 4.1 Dimensions and connections Bottom view CH fl ow Gas inlet CH return Condense outlet Top view fi g. 19... -
Page 31: General View And Main Components
Optimax 25 OV 4.2 General view and main components Flue gas sensor Airtight chamber Gas inlet CH fl ow CH return Premix fan Combustion chamber Gas injector Ceramic burner Flue outlet manifold Heating fl ow sensor Viewing window Gas valve... -
Page 32: Hydraulic Diagram
Optimax 25 OV 4.3 Hydraulic diagram fi g. 21 Gas inlet Safety thermostat CH fl ow Condensate outlet pipe CH return Heat exchanger Premix fan assembly Return sensor Flow temperature sensor Fan Venturi Gas valve... -
Page 33: Technical Data Table
Total boiler water content litres Dimensions, weights connections Height Width Depth Weight empty Gas system connection Heating system connections Maximum length of separate flues D=80* (*Measurement given in equivalent linear metres – cfr FERROLI calculation system) Electrical power supply Max electrical power absorbed... -
Page 34: Wiring Diagram
Optimax 25 OV 4.5 Wiring diagram S4965V1018 DC F02.1 TACHO DSP49A1100 CPD5.1 Remove if external control fitted 230Vac 230 V 24 V . fi g. 22 Central heating pump (not supplied) C.h. fl ow temperature sensor Combination gas valve Overheat cut-off thermostat... - Page 36 Should you require help during installation call our Technical Helpline on 08707 282 885 option 1 To book a Ferroli service engineer call Ferroli caresafe on 08707 282 885 option 2 Phone numbers: Installer Service Engineer BECAUSE OF OUR CONSTANT ENDEAVOUR FOR IMPROVEMENT DETAILS MAY VARY SLIGHTLY FROM THOSE QUOTED IN THESE INSTRUCTIONS.