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Ferroli Optimax 25 C Instructions For Use, Installation And Maintenance - Optimax 25 C

Manual is about: wall-mounted gas ? red, pre-mix condensing combination boiler

Summary of Optimax 25 C

  • Page 1

    Optimax 25 c wall-mounted gas fi red, pre-mix condensing combination boiler cod. 3544782/1 - 08/2004 g c n° 47-267-34 instructions for use installation and maintenance.

  • Page 2: Optimax 25 C

    Optimax 25 c 2 important your “benchmark” installation, commissioning and service record log book will be enclosed in your customer information pack. “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 program...

  • Page 3: Optimax 25 C

    Optimax 25 c 3 1. Operating instructions..................................................................4 1.1 introduction.............................................................................................................4 1.2 control panel ..................................................

  • Page 4: Optimax 25 C

    4 optimax 25 c 1. Operating instructions 1.1 introduction dear customer, thank you for choosing optimax 25 c, a ferroli wall-mounted boiler of the latest generation, featuring advanced design and cutting-edge technology. Optimax 25 c is a high-effi ciency condensing pre-mix appliance for heating wit...

  • Page 5: Optimax 25 C

    5 optimax 25 c 1.2 control panel 2 3 4 1 5 ° c ° c fi g. 1 1 - system temperature adjustment / summer/winter selection this knob is used to adjust the system temperature from 20°c to 90°c and can switch over between summer / winter. To increase the system temperature, turn the knob clockwise; anticl...

  • Page 6: Optimax 25 C

    6 optimax 25 c 1.4 adjustments room temperature adjustment (using a room thermostat ) using the room thermostat, set the temperature desired in the rooms. Controlled by the room ther- mostat, the boiler lights and heats the system water to the system delivery setpoint temperature. The burner shuts d...

  • Page 7: Optimax 25 C

    7 optimax 25 c example boiler failed to light insufficient system pressure make sure that the gas isolation valve up-stream of the boiler and on the meter are open. Press the reset button (2 fig. 1). Fill the system to 1-1.5 bar by use of the filling loop. Fault cure display 1.5 maintenance it is st...

  • Page 8: Optimax 25 C

    Optimax 25 c 8 auto + - r over ride x x 4 a b e r d p auto p o i f p to set time of day 1. Slide switch (a) to left position 2. Using button + and - adjust until the correct time is shown on display (b). Pre set programmes. The timer is pre programmed with 3 on and 3 off times. To set own on and off...

  • Page 9: Optimax 25 C

    Optimax 25 c 9 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...

  • Page 10: Optimax 25 C

    Optimax 25 c 10 minimum a b d 2,5 cm 20 cm 60 cm (via an openable panel) c 30 cm table 1 fi g. 2 a a b d c 2.2 boiler location the unit’s combustion circuit is sealed off from the installation room and therefore requires no compartment ventilation. The installation room must be suffi ciently well ve...

  • Page 11: Optimax 25 C

    Optimax 25 c 11 fi g. 5 1 2 3 5 6 7 4 40 68 107 77,5 57,5 50 400 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 plum- b...

  • Page 12: Optimax 25 C

    Optimax 25 c 12 fi g. 4 fig. 5 3 2 1 4 key a = nut b = compression olive d = 3/4 seal (green) e = 1/2 seal (green) f = 1/2 gas seal (blue) g = filter h = cap flow isolation valve hot water connection gas isolation valve cold water isolation valve return isolation valve 22 22 22 15 15 a a a a a b b b...

  • Page 13: Optimax 25 C

    Optimax 25 c 13 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. Sentinel division cookson ...

  • Page 14: Optimax 25 C

    Optimax 25 c 14 fi g. 8 remove if external controls fitted 230 vac 8 7 6 5 4 3 2 1 l n fi g. 9 external controls caution: the room thermostat and time clock work at 230 v - 50 hz phase (fi g. 9). The user must never change the unit’s power cable. If the cable gets damaged, switch off the unit and ha...

  • Page 15: Optimax 25 C

    Optimax 25 c 15 * = between 10 e 60 mm * = between 10 e 60 mm 80 standard 1kwma53a flue kit 215 185 install level install level 50* 110 95 80 30 50* 30 95 s 50* p 110 l d s p 125 s 30 95 d s 50* l 30 95 215 185 175 drill the wall 10 ÷20 mm more than the pipe diameter 185 215 175 drill the wall 10 ÷2...

  • Page 16: Optimax 25 C

    Optimax 25 c 16 angled roof tile 1kwma82u 1kwma56u 950 50 1kwma71w max. 6 mt 60/100 max. 16 mt 80/125 roof end piece 1kwma83u 68 215 185 950 50 50 950 50 1000 125 10 vertical outlet fi g. 10c reduction factors for bends 1 m 0,5 m 0,5 m 0,25 m table 2b maximum permissible duct length (horizontal) Ø m...

  • Page 17: Optimax 25 C

    Optimax 25 c 17 4 5 1kwma83w 1kwma82u 1kwma84u 120 120 65 95 175 370 Ø80 air Ø80 fumes remove the closing cap kwmr54a 80 84 80 1kwmr54a 2 ref. 2 4 5 23 23 1 vertical air pipe Ø80 vertical flue pipe Ø80 80 Ø vertical flue kit description equivalent loss 23,0 m 36,8 m 12,0 m 71,8 m total table 3 fi g....

  • Page 18: Optimax 25 C

    Optimax 25 c 18 kwma86a kwma85a kwma84u air flue v ertical horizontal v ertical horizontal kwma65w kwma01w kwma83w • 1,00 m description pipe Ø 80 male-female bend 45 ° Ø 80 mm male - female bend 90 ° Ø 80 mm male - female description horozontial flue terminal horozontial air terminal vertical flue t...

  • Page 19: Optimax 25 C

    Optimax 25 c 19 minimum dimensions of flue terminal positions directly below an opening, air brick, opening windows, etc. Above an opening, air brick, opening windows, etc. Horizontally to an opening, air brick, opening windows, etc. Below gutters, soil pipes or drain pipes below balconies or car po...

  • Page 20: Optimax 25 C

    Optimax 25 c 20 fi g. 14 0,5 lt. A b connection to collective fl ues or single fl ues with natural draught if you are then going to connect the optimax 25 c 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 technica...

  • Page 21: Optimax 25 C

    Optimax 25 c 21 external 32/40mm solvent pipework cement motar seal 100mm dia tube bottom sealed lime stone chippings ground level (either/or) hole depth 400mm 25mm 2 rows of 3x12 mm holes internal -300mm fi g. 15 condensate discharge where possible the condensate should discharge into an internal s...

  • Page 22: Optimax 25 C

    Optimax 25 c 22 1 2 3 4 5 6 1 2 3 4 5 6 n l 230 v clock 1 2 3 5 n l 230 v clock 1 2 3 5 remove if external controls fitted 230 vac f2a f2a dsp49a1100 cpd5.1 8 7 6 5 4 3 2 1 x3 x6 x1 x7 x5 x2 1 2 3 4 5 6 7 8 9 10 1 2 3 4 6 7 8 5 1 2 3 4 x3 remove if external controls fitted 230 vac existing wiring wi...

  • Page 23: Optimax 25 C

    Optimax 25 c 23 fi g. 16 nozzle Ø natural gas lpg see technical data table 3. Service and maintenance 3.1 adjustments all adjustment and conversion operations must be carried out by qualifi ed personnel such as ferroli technical service. Ferroli declines any responsibility for damage or physical inj...

  • Page 24: Optimax 25 C

    Optimax 25 c 24 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 of a safety device. Before lighting the boiler: • open any isolati...

  • Page 25: Optimax 25 C

    Optimax 25 c 25 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: • the control and safe...

  • Page 26: Optimax 25 C

    Optimax 25 c 26 fi g. 17 b a c a air fumes air fumes fi g. 18 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 and remove the 2 screws “a ” 2 open by lowering the panel “b ” 3 lift and tak...

  • Page 27: Optimax 25 C

    Optimax 25 c 27 no burner ignition 100 °c safety thermostat trips • flow sensor not active or correctly located • no system circulation • check the correct positioning and operation of the flow sensor • check the pump and radiator valves present in the system no flame after the ignition phase • cvbc...

  • Page 28: Optimax 25 C

    Optimax 25 c 28 incorrect system water pressure • pressure too low • sensor damaged • fill the system • check the sensor 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 cvbc flow sensor ...

  • Page 29: Optimax 25 C

    Optimax 25 c 29 4 technical characteristics and data 4.1 dimensions and connections fi g. 19 top view bottom view 6 40 68 107 77,5 57,5 50 400 720 175 120 120 65 95 11 11 11 11 400 378 370 1 2 7 3 4 5 key 1 system fl ow (22 mm with isolation valve fi tted) 2 dhw outlet (15 mm with isolation valve fi...

  • Page 30: Optimax 25 C

    Optimax 25 c 30 4.2 general view and main components fi g. 20 175 196 161 22 10 7 11 154 49 34 16 35 36 14 32 44 186 19 5 21 29 flue sensor 201 83 82 188 95 194 8 9 136 200 246 56 key 5 combustion chamber 7 gas inlet 8 domestic hot water outlet 9 cold water inlet 10 ch fl ow 11 ch return 14 safety v...

  • Page 31: Optimax 25 C

    Optimax 25 c 31 4.3 hydraulic diagram fi g. 21 14 136 32 44 56 186 161 201 36 35 34 49 246 194 16 11 10 7 8 9 154 95 key 7 gas inlet 8 dhw outlett 9 cold main inlet 10 ch fl ow 11 ch return 14 heating safety valve 16 premix fan assembly 32 heating pump 34 flow temperature sensor 35 air separator 36 ...

  • Page 32: Optimax 25 C

    Optimax 25 c 32 4.4 technical data table heating heating temperature adjustment range °c maximum working temperature in heating °c maximum working pressure in heating bar minimum working pressure in heating bar expansion vessel capacity litres expansion vessel pre-filling pressure bar total boiler w...

  • Page 33: Optimax 25 C

    Optimax 25 c 33 4.5 diagrams head available for the system fi g. 22 0 1 2 3 4 5 6 7 0 500 1.000 1.500 2.000 q [l/h] h [m h 2 o] a 3 2 1 key 1 - 2 - 3 = pump selector positions (in order to obtain maximum hot water output the pump must be left in position 3). A =boiler losses of head.

  • Page 34: Optimax 25 C

    Optimax 25 c 34 1 4 2 5 3 6 1 9 2 10 3 11 4 12 5 13 6 14 7 15 8 16 1 6 2 7 3 8 4 9 5 10 v1 v2 t l n 1 2 3 4 5 6 1 2 3 4 5 6 n l 230 v gnd out 12v 136 clock 1 2 3 5 remove if external controls fitted 230 vac 44 81 82 f2a tr 32 34 49 24 v. 186 191 x1 x12 x11 114 s4965v1018 dc f02.1 dsp49a1100 cpd5.1 9...

  • Page 36

    Phone numbers: installer service engineer because of our constant endeavour for improvement details may vary slightly from those quoted in these instructions. Lichfi eld road, branston industrial estate, burton upon trent, staffordshire de14 3hd tel. 08707 282 885 - fax 08707 282 886 all specificati...