Ferroli Domina 80 E Installation, Service And User Instructions Manual Download Page 4

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DOMINA 80 E

Fig. 1

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460

Boiler cover

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720

725

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460

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270

Boiler connections

2. TECHNICAL AND DIMENSIONAL CHARACTERISTICS

2.01 Technical information

Domina 80 E

boilers are central heating and domestic hot water heat generators and are produced as

standard to function with natural gas or LPG.

Key

- 3/4" central heating flow outlet

- 1/2" domestic hot water flow outlet

- 1/2 “ gas inlet

- 1/2" domestic hot water inlet

- 3/4" central heating return inlet

- Pressure relief outlet

Summary of Contents for Domina 80 E

Page 1: ...TALLATION SERVICE AND USER INSTRUCTIONS G C NO 47 267 23 COPPER WALL MOUNTED COMBINATION GAS FIRED BOILER FOR CENTRAL HEATING AND DOMESTIC HOT WATER PRODUCTION FAN ASSISTED ROOM SEALED COMPARTMENT ELECTRONIC FLAME IGNITION AND CONTROL 3543064 1 07 99 ...

Page 2: ...73 23 modified from the 93 68 Electromagnetic compatibility directive 89 396 modified from the 93 68 Year 2000 Compliance Declaration We will guarantee that this products is altogether suitable for the data change in the Year 2000 boiler has no dependence from date change and that no disruptions will occur which is caused by this product IMPORTANT From the 1st October 1999 your benchmark Installat...

Page 3: ...ral heating circuit set to open at 3 bar Built in Expansion vessel Variable speed pump Central heating flow temperature adjustment thermostat Domestic hot water flow temperature adjustment thermostat Central heating limit thermostat Overheat safety thermostat Electronic control unit for automatic flame ignition and control Central heating low water pressure cut off switch Domestic hot water flow t...

Page 4: ... AND DIMENSIONAL CHARACTERISTICS 2 01 Technical information Domina 80 E boilers are central heating and domestic hot water heat generators and are produced as standard to function with natural gas or LPG Key 1 3 4 central heating flow outlet 2 1 2 domestic hot water flow outlet 3 1 2 gas inlet 4 1 2 domestic hot water inlet 5 3 4 central heating return inlet 6 Pressure relief outlet ...

Page 5: ... L s e r t i L E 0 8 a n i m o D 8 3 2 7 9 8 5 2 5 1 1 6 8 2 8 2 1 0 8 2 5 2 1 8 3 2 5 1 8 0 L E D O M s n o i t c e n n e C l e s s e v n o i s n a p x E x a M e r u s s e r p l a r t n e c g n i t a e h t i u c r i c x a M g n i k r o w t o h e r u s s e r p t i u c r i c r e t a w 1 2 3 4 5 y t i c a p a C g n i s i r u s s e r p e r P e u l a v Ø Ø Ø Ø Ø s e r t i L r a b r a b r a b E 0 8 a n...

Page 6: ...e switch 44 Gas valve 49 Safety overheat thermostat 50 Central heating flow limit thermostat 56 Expansion vessel 62 Time clock option 63 Central heating temperature adjustment 81 Ignition electrode 82 Sensor electrode 84 Primary gas valve solenoid 85 Secondary gas valve solenoid 90 Flue sampling point 91 Air sampling point 98 On Off Reset switch 114 Low water pressure cut off switch 132 Flue gas d...

Page 7: ...DOMINA 80 E 7 2 03 Boiler water flow diagram OUT IN MIN AIR IN AIR IN FLUE OUT C H OUT D H W OUT GAS IN D H W IN C H IN Fig 3 ...

Page 8: ...uirements of the central heating system will minimise boiler cycling thus saving fuel varying the output has virtually no effect on the efficiency and combustion characteristics of the boiler Diagram of pressures and outputs with Natural gas Fig 4 Fig 5 Diagram of pressures and outputs with LPG Propane 2 3 4 5 6 7 8 9 10 11 12 13 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 7 8 9 10 11 12 13...

Page 9: ...should not fall below 6 litres per minute If the total volume of water in the system exceeds 40 litres an additional expansion vessel must be fitted to the central heating return pipe Pump performance curve Grundfos UPS 15 50 0 3 4 5 6 7 8 9 10 11 12 13 14 15 16 39 40 45 50 55 60 65 Temperatura di erogazione sanitaria C Portata sanitaria dm min Potenza caldaia scambiata 7 8 9 10 11 12 13 14 15 16 ...

Page 10: ...o 1 bar SAFETY VALVE SETTING bar VESSEL CHARGE PRESSURE bar INITIAL SYSTEM PRESSURE bar TOTAL WATER CONTENT of SYSTEM 3 0 0 5 1 0 1 5 1 0 1 5 2 0 1 5 2 0 2 0 EXPANSION VESSEL VOLUME litres LITRES 25 3 5 6 5 13 7 4 7 10 3 8 3 50 7 0 12 9 27 5 9 5 20 6 16 5 75 10 5 19 4 41 3 14 2 30 9 24 8 100 14 0 25 9 55 1 19 0 41 2 33 1 125 17 5 32 4 68 9 23 7 51 5 41 3 150 21 0 38 8 82 6 28 5 61 8 49 6 175 24 5 ...

Page 11: ... or shower Air Supply The room or compartment in which the boiler is installed does not require a purpose provided vent when using the standard concentric flue Flue System The boiler allows the flue outlet to be taken from the rear of the boiler from either side or vertically A standard flue length of 0 75 metres is provided Alternative lengths of two or three metres can be supplied equivalent to ...

Page 12: ... 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 The use of mains water to charge and pressurise the system directly is conditional upon the Local Water Byelaws Again any such...

Page 13: ... all all time must be fitted as far as possible from the boiler if thermostatic radiator valves are fitted thoughout Key 1 Filling point C H 2 Temporary connection 3 Cold water supply Fig 10 Fig 9 Gas Cold water Additional expansion vessel C H if required Filling point C H Bypass ...

Page 14: ...DOMINA 80 E 14 CLEARANCES 600mm minimum clearance for servicing access Top clearance only applies to 100Ø concentric flue system 460 5 min 5 min 100 min 860 200 min 270 50 mm 600 min 720 Fig 11 ...

Page 15: ... external corners 100 G Above adjacent ground or balcony level 100 H From a surface facing the terminal 600 I Facing another terminal 1 200 J From opening door window in carport into dwelling 1 200 K Vertically from a terminal on the same wall 300 L Horizontally from a terminal on the same wall 300 N Below carport 600 A Quinnel Barrat and Quinnel guard part No C2 should be screwed to the wall cent...

Page 16: ...DOMINA 80 E 16 3 01 Boiler Mounting Plate 149 178 131 Fig 13 ...

Page 17: ...ounting points Drill two 10mm holes 70mm deep to accept the wall plugs fit wall plugs Using a core drill cut a 118mm diameter hole for the flue 1 CH flow 2 Safety Valve 3 Domestic hot water outlet 4 Gas supply 5 Domestic hot water inlet 6 CH return 932 min 178 200 min 5 min 125 min 280 254 5 295 5 min 21 min Ø118 183 min 269 Ø 3 4 Ø 1 2 Ø 1 2 Ø 1 2 Ø 1 2 Ø 3 4 1 2 3 4 5 6 Fig 14 ...

Page 18: ...oints Drill two 10mm holes 70mm deep to accept the wall plugs fit wall plugs Using a core drill cut a 118mm diameter hole for the flue 1 CH flow 2 Safety Valve 3 Domestic hot water outlet 4 Gas supply 5 Domestic hot water inlet 6 CH return Fig 15 Ø3 4 Ø1 2 Ø1 2 Ø1 2 Ø1 2 Ø3 4 200 Ø118 150 min 80 21 min 5 min 183 min 295 5 min 200 min 932 min 269 110 1 2 3 4 5 6 ...

Page 19: ...DOMINA 80 E 19 3 04 Back flue outlet Diagram 1 9 Fig 16a Fig 16b Fig 16c 1 Core drill 127mm hole 5 2 Push through the outer flue 3 Gently pull back until wall seal is flush with the wall ...

Page 20: ... and drill four holes two top for expanding bolts and two bottom for plugs and screws Fix plate to wall with the square gasket between the wall and the plate use the large diameter washers for the bolts and screws 5 Through plate into air tube drill two holes and fix in place using two self tapping screws M4 x 6mm long ...

Page 21: ...late 7 Insert the aluminium flue pipe into white plastic outer flue making sure the aluminium pipe sits fully and centrally into the flue terminal Mark the aluminium flue pipe at the point it is flush with the mounting plate Add 36mm to this mark and cut the aluminium inner flue pipe at this point ...

Page 22: ...tlet up to the wallplate flange mark 9 Make sure the inner flue is fully engaged in the flue terminal secure boiler with two nuts and washers sevure bottom of boiler using two screws and washers 9 Lift boiler with flue in place engage inner and outer flue slide into position ...

Page 23: ...the air pressure switch remove 2 screws b Rotate the fan upward to disengage it from the securing pin a Fig 17a Fig 17b 3 05 Domina top outlet flue conversion Remove the securing screw that locates the fan nozzle extension to the fan and remove the nozzle extension and jointing mastic this is not required for top outlet flueing ...

Page 24: ...cover and gasket through 90 and fit it to the rear of the boiler to cover the original flue outlet Secure them both in place with the four screws removed previously Fig 17c Fig 17d Fig 17e Remove fan mounting plate by undoing the three fixing screws c Rotate the fan through 90 so that the fan nozzle points upward Secure the fan to the plate in the new position using screws in position d 3 4 Fig 17...

Page 25: ...iring connections to fan and air pressure switch tubes ensuring correct orientation I E red tube to air pressure switch connection with red dot and clear tube to air pressure switch connection with no paint marking Fit the fan into the boiler rotating the front upwards to engage with the pin a Secure with the screws b Fig 17l Fig 17h ...

Page 26: ...DOMINA 80 E 26 e f Fig 17o Fig 17p 9 10 Rotate the fan connector e until it locates into the stop then secure it with the screw f 11 SIDE CONCENTRIC OUTLET 12 VERTICAL CONCENTRIC OUTLET Fig 17q Fig 17r ...

Page 27: ...5 47 50 Ø Fig 18 Choice of restrictor With concentric pipes up to 1m long one bend use the 50 mm restrictor for flue lengths over 1 meter use no restrictor With separate pipes Calculate the total flow resistance of the air and flue pipes in metres cap 3 08 2 utilise the table shown above to choose the more suitable restrictor for the flow resistance calculated M E T S Y S E P I P O W T R O F R O T...

Page 28: ... Ø1 25 30 mm 60 Ø2 Ø1 Ø1 100 Ø2 60 Fig 20 Trim the 60 mm internal diameter tube Detail of mounting the bend A vertical connector can be supplied for vertical discharge with concentric pipes The simple mounting and use of double lip gaskets at the joints makes this an extremely easy and safe option Forfluelengthupto1mlongthe50mmØrestrictor isrequired Longerthanthisnorestrictorisrequired Fig 19 Conc...

Page 29: ...r boilers with concentric systems For correct calculation remember to include the reduction for bend and flue terminals listed on second table Please refer to 3 06 for use of restrictor e l b i s s i m r e p t h g n e l e u l f m u m i x a M c i r t n e c n o c m m 0 0 1 c i r t n e c n o c m m 5 2 1 l a c i t r e V l a t n o z i r o H l a c i t r e V l a t n o z i r o H E 0 8 a n i m o D m 4 m 3 ...

Page 30: ...e Notes on two pipe system installation When using the two pipe system the flue discharge pipe must have a 25mm air gap when passing through combustible materials Where the flue discharge pipe passes through the airing space of an airing cupboard it must be protected by a non combustible guard or expanded metal giving an annular air gap of at least 25mm Where the flue discharge pipe passes through...

Page 31: ...issible for the boiler model IMPORTANT the pipes and fittings flow resistance reduction have been summarised on the fol lowing pages The flow resistance values written refer only to Ferroli pipes and fittings CALCULATION ROUTINE 1 Utilise the pipes and fittings flows resistance tables on the following pages and calculate the total flow resistance in metres air by adding the flow resistances of the...

Page 32: ...ducts of combustion Ø 80 mm Air terminal of inlet protection Ø 80 mm Outlet flue air inlet for concentric system Ø 100 60 mm Pipe fitting for outlet flue Ø 80 mm Outlet flue air inlet for connection with split end Ø 80 mm 1 1 1 2 1 2 2 2 1 5 2 5 1 5 2 5 7 REDUCTION 5 2 4 3 AIR FLUE Vertical Horizontal Vertical Horizontal REDUCTION 12 Condensate flue outlet Ø 80 mm A c c e s s o r i e s Ø 8 0 A c c...

Page 33: ... m 2 12 Horizontal air pipe 12 0 m 3 1 Air wall terminal 2 0 m 4 1 Air inlet closing flange 5 1 Flue bend 80 mm R D 0 75 2 5 m 6 12 Horizontal flue 24 0 m 7 1 Air wall terminal outlet flue 5 0 m TOTAL 47 0 m Fig 24 AIR FLUE Vertical Horizontal Vertical Horizontal Description Male female flue 1 m Ø 100 Male female bend 45 Ø 100 mm 0 4 0 4 0 4 0 8 0 6 1 0 8 1 3 REDUCTION A c c e s s o r i e s Ø 1 0 ...

Page 34: ...DOMINA 80 E 34 Example of wall inlet outlet Example of roof inlet outlet Example of direct roof flue outlet and wall air inlet 3 08 3 Example of installation with two pipe systems Fig 25 Fig 26 Fig 28 ...

Page 35: ...e system requires partial or total emptying you are recommended to refill it with treated water 3 11 Filling When cold system pressure should be about 1 bar If while running venting off of air dissolved in the water causes the pressure of the central heating system to drop below the minimum level described above the user must utilise a filling loop to bring it back to the original value During ope...

Page 36: ...mer motor Applying mains voltage to the switch contacts will irreparably damage the circuit board Although this boiler can also be used without a room thermostat you are recommended to install one for the following reasons Greater comfort conditions due to more accurate control of room temperature Greater energy savings 3 14 Differential air pressure switch fig 2 part 43 The differential air press...

Page 37: ... off Remove screw securing facia panel and swing facia panel down Remove rear cover from facia Remove clock blanking plate from the boiler facia panel Mount clock into facia panel using two screws provided Take the black cable containing the blue and brown wires and connect the loose spades to clock terminals 1 2 Connect the plug end of the cable to terminal X4 of main circuit board Remove the con...

Page 38: ...K 4 3 72 X8 4 3 2 1 2 1 X3 X4 X5 OTC X10 1 2 3 1 2 1 2 X6 X7 10 1 X1 X2 2 2 1 2 3 4 9 8 7 6 5 4 3 2 1 1 3 VOLTAGE FREE SWITCH Wiring for integral clock and or external controls External control i e Room Stat Clock Fig 31 ...

Page 39: ...ot water production only position the knob 63 fig 2 on the Summer position In this mode the boiler is ready to operate automatically whenever domestic hot water is drawn off Note If after completing the start up procedure correctly the burners fail to ignite and the boiler shut down warning lights up wait about 15 seconds then rotate the knob 98 fig 2 against spring pressure to the RESET position ...

Page 40: ...ot water tap is turned on and off Check that the domestic hot water flow and T correspond to the table Do not rely on empirical measurements Temperatureshouldbemeasuredusingthermometersasnearaspossibletotheboiler bearing in mind the heat loss from the pipes Check that the gas valve modulates correctly both during the central heating phase and the domestic hot water production phase Determine the c...

Page 41: ...ive cap C Adjust potentiometre P3 on the main board at minimum anticlockwise Operate boiler for central heating Adjust minimum pressure by rotating screw D clockwise toreduce pressure and anticlockwise to increase pressure Adjust potentiometre P3 at maximum clockwise Adjust max pressure by rotating screw E clockwise to increase pressure and anticlockwise to reduce pressure Reconnect the pressure c...

Page 42: ...3 On the main P C B P4 P5 On Ignition Board P4 Ignition gas pressure adjustment P5 Factory set Don t touch 5 05 Adjusting central heating flow temperature Central heating water temperature is adjusted by rotating the control knob fig 2 part 63 Rotate the knob clockwise to increase water temperature anticlockwise to reduce water temperature Temperature can be varied from a minimum of 30 C to a maxi...

Page 43: ... following adjustment and conversion operations must be carried out by competent personnel FERROLI Limited accepts no liability for damage to property or personal injury resulting from tampering with the boiler by unauthorised persons To convert the boiler from Nat Gas to LPG and vice versa the main burner injectors must be replaced Minimum and maximum pressures must then be adjusted on the gas va...

Page 44: ...s valve and pump 6 03 Servicing procedure 1 Visually check boiler for correct intallation and flueing 2 Isolate electricity supply check fuse is 3amp 3 Remove case by undoing the two screws locate at the bottom rear corners lift slightly and pull forward 4 Carry out preliminary electrical checks at boiler junction box This is located in the centre of the boiler at the bottom and can be accessed be...

Page 45: ...e test points provided on the front of the room sealed cover The right hand grommet is for air and the left hand one is for flue gas The boiler must reach operating temperature before this test is carried out normally 10 15 minutes CO CO2 ratio should not exceed 0 0080 Immediatly after servicing 0 0040 at any other time 30 Refit case and secure with screws 31 Leave boiler set to customers requirem...

Page 46: ...lation cocks The C H is drained via the pressure relief valve twist about 1 2 of a turn c Remove components following special notice below and replace in reverse order d Ensure water and gas washers are in good condition 7 02 Final procedure Re open cocks and re charge the system to about 1 bar and vent boiler and radiators Re charge to 1 bar if necessary Upon completion of the work the following ...

Page 47: ...turn when repressurizing B A C 7 05 Gas valve fig 37 Isolate gas and electricity supplies Remove outer case two screws bottom rear corners Remove the two securing screws and lower control panel Disconnect electrical connections from valve A B Disconnect plastic tube C Loosen the connection D on gas pipe and the gas inlet connection of the boiler Remove the two fixing screw E below gas valve D C A ...

Page 48: ...tion to the sensor Drain the boiler Unscrew the sensor Replace in reverse order C H sensor Water pressure switch D H W sensor Safety valve 7 11 Water Pressure Switch fig 39 Isolate electricity and water supplies Remove outer case two screws bottom rear corners Remove the two securing screws and lower control panel Identify the switch from figure 39 Disconnect electrical connections note positions ...

Page 49: ...late gas and electricity supplies Remove outer case two screws bottom rear corners Remove room sealed cover Disconnect fan electrical leads A and note positions Disconnect air pressure tubes from air pressure switch B note positions Undo two screws securing fan assembly C Remove fan from boiler Swap mounting plate over to new fan replace in reverse order 7 11 Limit thermostat or overheat cut off t...

Page 50: ...ease water pressure from the domestic side of the heat exchanger close tap Remove outer case two screws bottom rear corners Remove two screws from control panel and tilt forward Take off protective cover from main PCB and unplug flow meter lead from terminal X6 Place a piece of cloth or some other absorbent material over rear of control panel to catch any drops of water that may be released when r...

Page 51: ...by removing the U clip from the left hand side Disconnect the boiler return pipe and disengage the pump lower connection by removing the U clip C Disconnectthepumptoheatexchangerconnection by removing the U clip F Unscrew the two screws on bottom of pump D Turn the pump body through 90 pull the bottom forward and withdraw the pump body Reassemble in reverse order taking care to ensure the O rings ...

Page 52: ...on will operate and the gas valve will be energised 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 Note If the boiler thermostat is set to maximum than the burner pressu...

Page 53: ... cuts power to gas valve The MFO2 PCB has five diagnostic lights each light corresponds to a particular function and will light in turn as the boiler goes though its sequence of operations In order the five lights indicate 1 Mains electricity on low voltage on 2 Flow meter operated 3 C H controls room thermostat clock and temperature regulator calling 4 C H waiting time approximately three minutes...

Page 54: ... is on the fault is most likely the C H sensor If this light is not on suspect either a clock or room thermostat not calling To override eliminate any external controls disconnect them from terminal 4 and 5 underneath the boiler and refit the link wire see fig 31 Boiler will not light for D H W or C H The fault is likely to be a component common to both services Open a hot tap to create a demand i...

Page 55: ... C H output and maximum D H W temperature both are adjustable by the controls on the facia and because the boiler features automatic range rating no adjustments need to be made Electro mechanical relays control pump operation and put switched live to the ignition PCB demand relay they have transparent plastic covers so that their contacts can be seen moving 8 08 Air pressure switch Operating at 23...

Page 56: ...Water pressure is not set between 1 1 5 bar YES Set pressure to 1 1 5 bar Check water pressure switch wiring connection NO Does fan run at full speed NO Go to CHART 2 NO YES Does CH Pump run If the boiler temperature is less than 5 C frost protection is activated NO Disconnect CH flowtemp sensor Has fan speed stopped Change main board NO YES YES Check and if necessary replace water pressure switch...

Page 57: ...if necessary replace main board Check and if necessary replace limit thermostat Go to chart 4 Chart 3 Check Central Heating operation Wait 2 minutes DHW taps closed Put CH temperature selector to maximum Ensure external controls are calling for heat Is led4 light on Does pump run YES YES Go to chart 4 Is relay RY01 switch on Check and if necessary replace main board NO Is led4 light off Check and ...

Page 58: ...replace air pressure switch NO Check and if necessary replace fan YES Is air pressure switch activated YES NO Check and if necessary replace air pressure switch YES Differential air pressure across the air pressure switch is greater than 175 Pascal 1 75 mbar Go to chart 5 YES NO Check and clean fan Check flue and air intake are correct and clean Check Venturi and air pressure switch tubes are clea...

Page 59: ...s for damage and correct connection Check and if necessary replace ignition control Adjust with P4 ignition burner pressure Check and if necessary clean burner Check and if necessary clean injectors Check and if necessary clean flame electrode Check right position of spark electrode Check wires Check gas supply is live and purged Check and if necessary replace gas valve NO YES Check and if necessa...

Page 60: ...and replace it if necessary Check voltage across terminals X10 1 X10 2 of main board 0 6V DC Boiler operated on central heating mode Does burner flame modulate Check wiring connection to DHW sensor Normal operation carry out YES NO Check DHW sensor and replace it if necessary Check voltage across terminals X10 1 X10 2 of main board 0 6V DC Boiler operated on DHW mode ...

Page 61: ... JP04 X3 X5 X4 1 2 X6 H1 Reset H2 Flame X1 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 3 4 X2 P4 P5 1 2 X7 S4562DM1006 IGNITION CONTROL Potentiometer adjustment Location P1 Central heating flow temperature adjustment P C B main board P2 Domestic hot water temperature adjustment P C B main board P3 Central heating flow output adjustment P C B main board P4 Ignition gas pressure adjustment Ignition control P5 Fac...

Page 62: ...me P1 P2 X6 X7 P3 OUT 136 50 114 42 34 10 1 49 X1 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 3 4 X2 43 16 98 C NO L N X1 X2 L N 32 72 80 230V 2 2 1 N L 2 3 4 9 8 7 6 5 4 3 2 1 1 3 P4 P5 1 2 44 MV1 MV2 MV3 MV4 24 V X7 S4562DM1006 NAT LPG 230 V 24 V 230 V RY01 RY02 JP04 R R Blue Blue O O Blue BR BL BL G R W Blue BR Blue BR Blue BR Blue BR Blue BR Blue W BL BR W O Blue V BL R 4 3 IMPORTANT USE A ROOM THERMOSTAT 2...

Page 63: ... 24V AC RY02 X1 1 L N X1 2 98 JP01 JP02 JP04 X1 9 X1 10 X1 11 Main Board MV2 MV3 MV4 114 X7 5 X7 6 50 X7 3 X7 4 136 bar 0 6V NAT LPG 9 03 Functional flow diagram MF02 S4562DM1006 Key 16 Fan 32 Central heating pump 34 Central heating flow temperature sensor 42 Domestic hot water flow temperature sensor 43 Air pressure switch 44 Gas valve 49 Safety thermostat 50 Central heating limit thermostat 62 T...

Page 64: ...Hot Water Only SUMMER To obtain hot water only from the boiler turn switch 3 to the on position The top green light on the left side of the control panel is illuminated power on Turn the temperature regulator 2 to the position Open a hot water tap green light tap symbol comes on fan starts and burner will light Indicated by flame symbol green light coming on The temperatureofthehotwatercanbeadjust...

Page 65: ...ns Failure to observe these requirements may lead to prosecution Electrical Supply WARNING This appliance must be earthed The electrical wiring must be carried out by a competent electrician The colours of the wires in the mains lead of this appliance may not correspond with the coloured markings identifying the terminal in the plug Therefore proceed as follows The wire coloured green and yellow m...

Page 66: ...ON if it is OFF and OFF if it is ON F I Heating continuous AUTO Heating timed O Heating disabled R Reset with pencil only with switch A in set clock position 1 1 Use buttons and to set 1st ON time eg 6 00 Display 2 1 Use buttons and to set OFF time eg 9 00 Display 3 1 Use button and to set 2nd ON time eg 12 30 Display 4 1 Use button and to set 2nd OFF time eg 14 00 Display 5 1 Use button and to se...

Page 67: ...amme on reaching the next ON or OFF time When the programme is on over ride the sign will be shown in the display window B Reset Button By the use of a pencil the reset button can be pushed R This will clear all programmes apart from those factory pre set Reset is only possible with switch A in set Clock position x Should you require help with any difficulties call our Technical Service Helpline o...

Page 68: ...ers Installer Service Engineer BECAUSE OF OUR CONSTANT ENDEAVOUR FOR IMPROVEMENT DETAILS MAY VARY SLIGHTLY FROM THOSE QUOTED IN THESE INSTRUCTIONS 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 ...

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