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  5. Instructions For Use, Installation And Maintenance

Ferroli OPTIMAX HE PLUS 25 S Instructions For Use, Installation And Maintenance

Manual is about: wall-mounted gas fired, pre-mix condensing system boiler

Summary of OPTIMAX HE PLUS 25 S

  • Page 1

    Instructions for use installation and maintenance optimax he plus 25 s wall-mounted gas fired, pre-mix condensing system boiler cod. 3540r540 - 02/2009 (rev. 00) 5 g.C. N° 41-267-32 seasonal efficiency (sedbuk) band a.

  • Page 2

    Optimax he plus 25 s 2 cod. 3540r540 - 02/2009 (rev. 00) • read the warnings given in this manual thoroughly. They provide important information for safe instal- lation, use and maintenance • by law the instruction manual must be left with the end user. • if the appliance is sold or transferred to a...

  • Page 3

    Optimax he plus 25 s 3 cod. 3540r540 - 02/2009 (rev. 00) 1. Operating instructions .................................................................4 1.1 introduction ............................................................................................................4 1.2 control panel ........

  • Page 4

    4 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 1. Operating instructions 1.1 introduction dear customer, thank you for choosing the optimax he plus 25 s, a ferroli wall-mounted boiler of the latest generation, featuring advanced design and cutting-edge technology. Optimax he plus 25 s is a...

  • Page 5

    5 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 1.2 control panel eco comfort reset 8 15 13 14 12 11 2 1 4 3 6 7 5 fig. 1 1 = domestic hot water temperature setpoint decreasing push button (not used) 2 = domestic hot water temperature setpoint increasing push button (not used) 3 = central h...

  • Page 6

    6 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 1.3 turning on and off without main power supply to avoid damage caused by freezing during long shutdowns in winter, it is advisable to drain all water from the system. Ignition ensure the power is on to the appliance. For the first 120 second...

  • Page 7

    7 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) when the boiler is turned off with this key, the p.C.B is still powered, heating operation is disabled and the display is off however the frost protection will still be active. To totally isolate close the gas cock ahead of the boiler and disc...

  • Page 8

    1.6 faults in the unlikely event of an operating problem, or component failure, the display flashes and a fault identification code appears. 8 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 1.5 maintenance it is strongly recommended to carry out annual maintenance of the boiler and heating s...

  • Page 9

    9 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 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 heat- ing system and...

  • Page 10

    10 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) minimum a b d 2,5 cm 20 cm 60 cm (via an openable panel) c 30 cm table 1 fig. 9 a a b d c 2.2 boiler location the unit’s combustion chamber is sealed off from the installation room and therefore requi- res no compartment ventilation. The inst...

  • Page 11

    11 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) fig. 10 2.3 boiler water connections the heating capacity of the unit should be previously established by calculating the building’s heat requi- rement according to current regulations. For good operation and long life of the boiler, the plum...

  • Page 12

    12 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) fig. 11 fig. 12 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 gas isolation valve return isolation valve 22 22 22 a a a b b b d d f g h r...

  • Page 13

    13 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 2.5 electrical connections the unit must be installed in conformity with current national and local regulations. Connection to the electrical supply the boiler must be connected to a single-phase, 230 volt-50 hz electric supply. The unit’s el...

  • Page 14

    14 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) fig. 13 the user must never change the unit’s power cable. If the cable gets damaged, switch off the unit and have it changed only by professionally qualified personnel. If changing the electric power cable, use only “har h05 vv-f” 3x0.75 mm ...

  • Page 15

    15 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) central heating demand the heat demand can be controlled by the room thermostat (terminal 5-6) or by a switch line 230 v (terminal 5). Standard systems for a general pipe layout and wiring diagram on the “s” and “y” plan systems please see fi...

  • Page 16

    16 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) optimax “y” plan fig. 16a fig. 16b optimax ferroli boiler auto air vent wiring diagram 4 3 2 1 junction box n l 1 2 3 4 5 6 7 8 9 10 programmer neutral live ch on dhw on dhw off blue white grey orange room thermostat cylinder thermostat n e l...

  • Page 17

    17 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) side view view from above fig. 17a side outlet fig. 17b front view view from above p = s + 180 mm rear outlet l = s + d + 185 mm connection with concentric flue system the unit can be connected to a concentric air/flue duct with a horizontal ...

  • Page 18

    18 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) pitch roof slate 1kwma82u 1kwma56u 950 50 041002x0 950 50 50 950 50 max. 6 mt 60/100 max. 16 mt 80/125 vertical terminal 1kwma83u 120 1000 125 10 eco comfort reset 1 2 3 4 0 bar vertical outlet fig. 17c reduction factors for bends 1 m 0,5 m 0...

  • Page 19

    19 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) ref. 2 4 5 16 29 1 vertical air pipe Ø80 vertical flue pipe Ø80 80 Ø vertical flue kit description equivalent loss 16 m 46,4 m 12,0 m 74,4 m total table 3 fig. 18 fig. 19 connection with 80 mm pipe system the unit can be connected to a system...

  • Page 20

    20 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 1kwma86a 1kwma85a 1kwma84u air flue vertical horizont al vertical horizont al 1kwma65w 1kwma01w 1kwma83w • 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 ter...

  • Page 21

    21 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 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 pipe...

  • Page 22

    22 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) b connection to collective flues or single flues with natural draught if you are then going to connect the optimax he plus 25 s boiler to a collective flue or a single flue with natural draught, the flue must be expressly designed by professi...

  • Page 23

    23 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) external 32/40mm solvent weld pipework cement 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 fig. 22 condensate discharge where possible the conden...

  • Page 24

    24 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) fig. 23 3. Service and maintenance 3.1 adjustments all adjustment and conversion operations must be carried out by qualified personnel such as ferroli technical service. Ferroli declines any responsibility for damage or physical injury caused...

  • Page 25

    25 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 3.2 system start-up commissioning must be performed by qualified personnel. Checks to be made at first ignition, and after all maintenance operations that involved discon- necting from the systems or an intervention of a safety device. Before...

  • Page 26

    26 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 3.3 maintenance the following operations are strictly reserved for qualified personnel, such as corgi registered engineers or ferroli engineers. Seasonal inspection of the boiler and flue it is advisable to carry out the following checks at l...

  • Page 27

    27 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) fig. 24 b a c a eco com fort res et 1 2 3 4 0 bar air flue gas air flue gas fig. 25 opening the casing to open the boiler casing, you need to follow the sequence given below and the instructions of fig. 24. 1 using a screwdriver, fully unscre...

  • Page 28

    28 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 3.4 troubleshooting fault diagnosis in the event of operating problems or trouble, the display will flash and a fault identification code appears. There are faults that in order to restore operation the reset button must be pressed (ref.6 - f...

  • Page 29

    29 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) fault possible cause cure f13 flue sensor fault sensor damaged or wiring shorted check the wiring or change the sensor sensor damaged or wiring broken check the wiring or change the sensor f14 flow sensor fault sensor damaged or short circuit...

  • Page 30

    30 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 4. Technical characteristics and data 4.1 dimensions and connections 6 pressure relief valve key 1 system flow (22 mm with isolation valve fitted) 3 gas inlet (22 mm with isolation valve fitted) 5 system return - 22 mm with isolation valve fi...

  • Page 31

    31 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 4.2 general view and main components fig. 27 key 5 room sealed compartment 7 gas inlet 10 ch flow 11 ch return 14 heating safety valve 16 premix fan assembly 19 combustion compartment 22 main burner 29 flue collar 32 pump 36 automatic air ven...

  • Page 32

    32 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 4.3 hydraulic diagram fig. 28 key 7 gas inlet 10 ch flow 11 ch return 14 pressure relief valve 16 premix fan assembly 32 pump 36 automatic air vent 44 gas valve 56 expansion vessel 114 water pressure switch 154 condensate outlet pipe 161 heat...

  • Page 33

    33 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 4.4 technical data table maximum working temperature in heating °c total boiler water content litres weight empty kg max electrical power absorbed w 95 1.5 36 115 max. Ch heat input max. Natural gas flow rate (g20) natural gas supply pressure...

  • Page 34

    34 optimax he plus 25 s cod. 3540r540 - 02/2009 (rev. 00) 4.5 diagrams head available for the system fig. 29 key 1 - 2 - 3 = pump selector positions a =boiler losses of head 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.

  • Page 35

    35 optimax he plus 25 s key 16 fan 32 central heating pump 44 combination gas valve 62 time clock (optional) 81 spark electrode 82 ionisation electrode 101 main p.C.B. 103 relay 104 fuse 114 water pressure switch 186 return temperature sensor 191 exhaust temperature sensor 202 transformer 230v-24v 2...

  • Page 36

    Benchmark controls to comply with the building regulations, each section must have a tick in one or other of the boxes time & temperature control to heating room t/stat & programmer/timer programmable roomstat time & temperature control to hot water cylinder t/stat & programmer/timer combi boiler he...

  • Page 37: Service Interval Record

    Service interval record it is recommended that your heating system is serviced regularly and that you complete the appropriate service interval record below. Service provider. Before completing the appropriate service interval record below, please ensure you have carried out the service as described...

  • Page 40

    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 is ...