Ferroli OPTIMAX 25 S Instructions For Use, Installation And Maintenance
Wall-mounting gas boiler,
pre-mixed
condensing system boiler
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Also See for OPTIMAX 25 S:
- Technical specification (12 pages) ,
- Instructions for use, installation and maintenance (36 pages)
Related Manuals for Ferroli OPTIMAX 25 S
Summary of Contents for Ferroli OPTIMAX 25 S
- Page 1 OPTIMAX 25 S wall-mounting gas boiler, pre-mixed condensing system boiler INSTRUCTIONS FOR USE INSTALLATION AND MAINTENANCE G C N° 41-267-22...
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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 S 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 ................12 2.5 Electrical Connections ..................12... -
Page 4: Operating Instructions
1.1 Introduction Dear Customer, Thank you for choosing Optimax 25 S, a FERROLI wall-mounted boiler of the latest generation, featuring advanced design and cutting-edge technology. Optimax 25 S 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 S 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 S 1.3 Turning ON and OFF Ignition • Open the gas isolation valve on the boiler. • Purge the gas supply. • Turn on the electrical switch or insert the plug of boiler. • The boiler is now ready to function automatically whenever the external controls are calling for heat. -
Page 7: Maintenance
If the problem remains afther two attempts at resetting, contact your nearest FERROLI Caresafe. For other faults, refer to section 3.4 “Troubleshooting”. Before calling the FERROLI Caresafe, check that the problem is not due to there being no gas or electricity. -
Page 8: Installation
Optimax 25 S 2. INSTALLATION 2.1 General Instructions This device must only be used for the purpose for which it is specifi cally 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 9: Boiler Location
Optimax 25 S 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 S 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 plum- bing system must be well proportioned and always complete with all those accessories that guarantee regular operation and running. - Page 11 Optimax 25 S The connecting kits shown in Fig. 4 are supplied as standard. A = Nut B = Compression olive D = 3/4 seal - Green F = 1/2 gas seal - Blue Flow isolation valve Gas isolation valve Return isolation valve fi...
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Page 12: Connection To The Gas System
Optimax 25 S Water treatment If treatment is used ferroli limited recommanded 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 13 Optimax 25 S Central heating request The heat demand can be done by the room thermostat (terminal 4-5) or by a switch line 230 V phase (terminal 4). Standard Systems For a general pipe layout and wiring diagram on the “S” and “Y” plan systems please see fi g.
- Page 14 Optimax 25 S OPTIMAX “Y” Plan Pipe layout Auto air vent OPTIMAX FERROLI BOILER Automatic bypass (mimimum flow of 6l/min.) fi g. 7a Wiring diagram Junction Box Honeywell V4073H mid position The heating system must have an automatic bypass capable of...
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Page 15: Flue System
The current standards and local regulations must be observed. It should be notes 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 16 Optimax 25 S 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 17 Optimax 25 S Vertical Outlet The total length in equivalent metres of the concentric fl ue must not exceed the maximum lengths stated in the following table, note that each bend gives rise to the stated reduction. For example, a duct = 60/100 composed of 1 bend of 90°...
- Page 18 Optimax 25 S Connection with 80 mm pipe system Ø80 Ø80 The unit can be connected to a system of sepa- FUMES Remove rate air/fl ue ducts for a wall or rooftop outlet the closing as shown on the drawings 11 - 12 alongside.
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Page 19: 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 20 Optimax 25 S 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 21: 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 S 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 22: Condensate Discharge
Optimax 25 S 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 23: 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 24: System Start-Up
Optimax 25 S 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 25: Maintenance
Optimax 25 S 3.3 Maintenance The following operations are strictly reserved for Qualifi ed Personnel, such as corgi registered engineers or Ferroli personeer. Seasonal inspection of the boiler and fl ue It is advisable to carry out the following checks at least once a year: •... -
Page 26: Combustion Analysis
Optimax 25 S 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 27: Troubleshooting
Optimax 25 S 3.4 Troubleshooting Fault Diagnosis In the event of operating problems or trouble, the display blinks 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 28 Optimax 25 S 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 No flame after the ignition • Detection electrode fault •...
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Page 29: Technical Characteristics And Data
Optimax 25 S 4 TECHNICAL CHARACTERISTICS AND DATA 4.1 Dimensions and connections Top view CH fl ow Gas inlet 185,5 50,5 CH return Condense outlet Bottom view fi g. 19... -
Page 30: General View And Main Components
Optimax 25 S 4.2 General view and main components Flue sensor Airtight chamber Gas inlet CH fl ow CH return Safety valve Premix fan Combustion chamber Gas injector Ceramic burner Flue outlet manifold Heating pump Heating fl ow sensor Air separator... -
Page 31: Hydraulic Diagram
Optimax 25 S 4.3 Hydraulic diagram fi g. 21 Gas inlet Safety thermostat CH fl ow Exspansion vessel CH return System pressure gauge (water gauge) Heating safety valve Condensate outlet pipe Premix fan assembly Heat exchanger Heating pump Return sensor... -
Page 32: Technical Data Table
Gas system connection (with isolation valve fitted) Heating system connections (with isolation valve fitted) Maximum length of separate flues D=80* (*Measurement given in equivalent linear metres – cfr FERROLI calculation system) Electrical power supply Max electrical power absorbed Electric power drawn by the circulator (Speed I-II-III) -
Page 33: Diagrams
Optimax 25 S 4.5 Diagrams Head available for the system H [m H Q [l/h] 1.000 1.500 2.000 fi g. 22 1 - 2 - 3 = Pump selector positions A = Boiler losses of head... -
Page 34: Wiring Diagram
Optimax 25 S 4.6 Wiring diagram Central heating pump C.h. fl ow temperature sensor Combination gas valve S4965V1018 Overheat cut-off thermostat DC F02.1 Spark electrode Ionisation electrode Water pressure switch Return sensor Flue temperature sensor TACHO Remove if DSP49A1100 external CPD5.1... - 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.