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DOMINA OASI F 24 - 30 E

FERELLA BOIL F 24 - 30 MEL

KEA AIR COMPACT E

Version - 09.2002

4. Troubleshooting

Flow Diagram 1

Checking Electric Power Supply - System Pressure and Antifreeze Protection

Is LED5 on?

Turn the selector onto ON

Heating selector on

summer position " "

Set the temperature of the

hot water to minimum

Are there 230V between

the terminals X1-1 X1-2?

Check and if necessary

change the 2A fuse

YES

Is LED5 on now?

Repair the fault with

the external line

Change the

main card

YES

Is LED5 blinking?

YES

Is the pressure

of the water not

between

1 and 1.5 bar?

YES

Take the pressure

to 1 - 1.5 bar

Check the

electrical connection

of the water

pressure switch

Does the fan turn

at top speed?

Proceed with

diagram 2

YES

Does the heating

circulator turn?

If the boiler temperature is

under 5˚C the antifreeze

protection is active

Check the

circulator

connection

YES

Disconnect the heating

temperature sensor

Has the fan stopped?

Change the main card

YES

Check and if

necessary change

the water

pressure switch

First of all, check the following points

• The gas cock is open
• The electricity is on
• The polarity is correct
• The system pressure is between 1 and 1.5 bar
• The pump turns correctly

YES

The relay RY 101

is closed

Check and if

necessary change

the circulator

Proceed with

diagram 2

YES

Содержание Domina Oasi F 24 E

Страница 1: ...DOMINA OASI F 24 30 E FERELLA BOIL F 24 30 MEL KEA AIR COMPACT E Wall Mounting Gas Boiler Airtight Chamber for Heating and Hot Water with Integrated Boiler TECHNICAL MANUAL EDITION 09 2002 ...

Страница 2: ...omponents 8 1 4 Technical data table 10 2 Product framework and internal components 11 2 1 Hydraulic circuit heating 11 2 2 Hydraulic circuit tap water 15 2 3 Gas circuit 17 2 4 Burner unit 21 2 5 Fume circuit 23 2 6 Electrical circuit 27 3 Operation 30 3 1 Operating principle 30 3 2 Operating diagram 31 3 3 Control panel 32 3 4 Adjustments 32 3 5 Setting operating parameters 33 4 Troubleshooting ...

Страница 3: ...the characteristics of the building and of its location The tap water capacity is ensured by a boiler that is kept at the required temperature There are 5 LEDs on the control panel providing information on the unit s operating status General Warnings Installation and maintenance must be carried out by professionally qualified personnel according to current regulations and the manufacturer s instru...

Страница 4: ...2 Dimensions and connections Domina Oasi F 24 E version 600 370 800 810 570 85 285 75 85 90 85 80 80 85 120 55 170 100 65 55 35 1 2 3 4 5 6 Key 1 Gas inlet 2 3 4 System delivery 3 3 4 System return 4 1 2 Hot tap water 5 1 2 Cold tap water 6 1 2 Outlet Recirculation Top view Bottom view ...

Страница 5: ...erella Boil F 24 MEL version Kea Air Compact E version 600 370 800 810 570 85 285 75 85 90 85 80 80 85 120 55 170 100 65 55 35 1 2 3 4 5 6 Key 1 Gas inlet 2 3 4 System delivery 3 3 4 System return 4 1 2 Hot tap water 5 1 2 Cold tap water 6 1 2 Outlet Recirculation Top view Bottom view ...

Страница 6: ...rsion 09 2002 Domina Oasi F 30 E version 600 450 800 810 570 85 365 75 85 90 85 80 80 85 120 55 170 100 65 55 35 1 2 3 4 5 6 Key 1 Gas inlet 2 3 4 System delivery 3 3 4 System return 4 1 2 Hot tap water 5 1 2 Cold tap water 6 1 2 Outlet Recirculation Top view Bottom view ...

Страница 7: ...ion 09 2002 Ferella Boil F 30 MEL version 600 450 800 810 570 85 365 75 85 90 85 80 80 85 120 55 170 100 65 55 35 1 2 3 4 5 6 Key 1 Gas inlet 2 3 4 System delivery 3 3 4 System return 4 1 2 Hot tap water 5 1 2 Cold tap water 6 1 2 Outlet Recirculation Top view Bottom view ...

Страница 8: ...or heating system 63 Heating temperature setting 74 Heating system cock 81 Ignition electrode 82 Detection electrode 84 1st gas valve operator 85 2nd gas valve operator 90 Fume detection point 91 Air detection point 97 Magnesium anode 98 Off On Reset switch 114 Water pressure switch 130 Boiler circulator 132 Fume deflector 145 Water gauge 151a Boiler drain cock 151b System drain cock 155 Boiler te...

Страница 9: ...ater 28 Fume manifold 29 Fume outlet manifold 32 Heating circulator 34 Delivery temperature sensor 36 Automatic air vent 40 Tap water expansion tank 43 Air pressure switch 44 Gas valve 49 Safety thermostat 50 Heating thermostat 56 Expansion tank for heating system 63 Heating temperature setting 74 Heating system cock 81 Ignition electrode 82 Detection electrode 84 1st gas valve operator 85 2nd gas...

Страница 10: ...heating bar 3 Maximum working temperature in heating C 90 Electrical protection rating IP 44 Power voltage frequency V Hz 230 50 Max electrical power absorbed W 125 Hot water circuit connections inches 1 2 Heating system connections inches 3 4 Gas system connection inches 1 2 Weight with packing kg 52 Heating Natural Gas delivery G20 nm 3 h 2 73 1 22 Natural Gas main nozzles G20 mm 12 x 1 30 Press...

Страница 11: ... 16 44 7 81 43 32 14 114 34 11 10 49 50 222 36 97 155 130 179 179 74 8 9 192 151 56 Key 5 Airtight chamber 7 Gas inlet 8 Tap water outlet 9 Tap water inlet 10 System delivery 11 System return 14 Safetyvalve 16 Fan 20 Burner assembly 29 Fume outlet manifold 32 Heating circulator 34 Heating temperature sensor 36 Automatic air vent 43 Air pressure switch 44 Gas valve 49 Safety thermostat 50 Heating t...

Страница 12: ... with the aidofascrewdriver Theconnectiontotheexpansiontankandtheairseparator is installed on the pump casing Checks If the pump doesn t work Check that the impeller is free to turn by turning the screw on the front with ascrewdriver Check that both the card and the pump connection are powered If there is no power supply check the card If there is power change the pump Key 1 2 3 Pump selector posi...

Страница 13: ...agm and ensuing compression of the air the tank compensates for the thermal expansion of the water in the heating system 30kW10 litreversion 24kW6 litreversion Exchanger The exchanger is a copper laminar assembly It comprises a thickly finned portion and four circular pipes connectedtogetherinseries Thewaterexchangesdirectlywiththecombustiongasesandmakesthesystem safe via a safety thermostat set t...

Страница 14: ...system onceopen dirtcouldremaininsideit preventing it from closing completely Check valve It is necessary to ensure the water flows in one direction only and it is located above the two pumps Filler cock Thisislocatedbetweentheheatingreturnandthetapwateroutlet Itisnotfitted ontheboilerforsomemarketssuchastheBritishandBelgianones ForFrench boilers there is a disconnector to be installed externally ...

Страница 15: ...ediately In this way heating is turned off and the boiler exchanges with the closed circuit water that in its turn yields the heat to the tap water contained in the boiler Key 5 Airtight chamber 7 Gas inlet 8 Tap water outlet 9 Tap water inlet 10 System delivery 11 System return 14 Safetyvalve 16 Fan 20 Burner assembly 29 Fume outlet manifold 32 Heating circulator 34 Heating temperature sensor 36 ...

Страница 16: ...op of the boiler At the bottom again there is a third connection whose job is to drain the boiler via a cock The boiler s safety valve is located between thiscockandtheboiler 7bar Thisconnectioncanbeutilizedifthetap watersystemisaringandtherefore needs recirculation In this case it is necessary to install the drain cock with a T junction At the bottom of the boiler near the coil inlet and outlet t...

Страница 17: ...1 System return 14 Safetyvalve 16 Fan 20 Burner assembly 29 Fume outlet manifold 32 Heating circulator 34 Heating temperature sensor 36 Automatic air vent 43 Air pressure switch 44 Gas valve 49 Safety thermostat 50 Heating thermostat 56 Expansion tank 74 Heating system cock 81 Ignition electrode 82 Detection electrode 97 Magnesium anode 114 Water pressure switch 130 Boiler circulator 151 Boiler dr...

Страница 18: ...e valve by means of screw B If there is no gas you must check there is voltage at the operators This makesitpossibletounderstandwhethertheproblemlieswiththevalve there isvoltageattheoperators orwiththecard thereisnovoltageatthecontacts X6 1 2 3 4 Modulation Thecontrolsystemgovernsitsboilercapacitysoastokeepthedeliverytemperatureconstantinaccordance with the settings on the control panel The nozzle...

Страница 19: ...t the potentiometer P3 to maximum anticlockwise Turn on the TEST function by temporarily bridging X5 Adjust the maximum pressure with the screw E clockwise to increase it and anticlockwise to decrease it Reconnect the pressure compensation tube F Put the protection screw C back in Disconnect the test jumper N B The test lasts 5 minutes C IN OUT F E B A D COMMON 25 50V DC 80 110V DC Key A Pressure ...

Страница 20: ...e unit is preset has to be used a conversion kit will be required proceeding as follows 1 Replacethenozzlesatthemainburner inserting thenozzlesspecifiedinthetechnicaldatatable according to the type of gas used 2 Adjust the burner minimum and maximum pressures setting the values given in the technical data chart for the type of gas used 3 Move the jumper JP02 on the card as shown in thediagram 4 Ap...

Страница 21: ...ds high temperatures and oxidation Its base is composed of a ceramic composite of glazed alumina whose purpose is to protect and electrically insulate it Once the ignition procedure begins the card powers the electrode with a pulsating voltage of a few kV a series of electrical discharges is set off between the electrodeandtheheadoftheburner setatadistanceof3 5mm Clearly these sparks are the trigg...

Страница 22: ...eouslyovertheentirelengthofthesinglestages with the contribution of the secondary air from the bottom of the burner mount and from the combustion chamber itself Thesetofstagesinoperationformsasinglebeltofflame lightblueincolour whosesizevariesaccording to the nozzle gas pressure that is the boiler capacity modulation Detection electrode Made of the same material as the ignition electrode it is set...

Страница 23: ...ed for hooking up with the flues The cover is sealed off with a porous plate and is fitted with two plugs for using a probe to analyse the fumes and combustion air Fan and pressure switch points Powered at 230V 50Hz by the card X6 7 8 the fan has the job of expelling the products of combustion from the fume chamber A plate is normally placed above the exchangertoactasadeflector maketheincomingairf...

Страница 24: ... difference in pressure must drop under 150 13Pa To perform checks on contact opening and closing it is always recommended to check directly on the card X5 3 4 Checks It is necessary to check Whether the electrical connections are correct Whether the pressure test point pipes are clean and contain no condensation water That the signal is open when the fan is not working That the pressure is at lea...

Страница 25: ...eoptimumoperatingrange Notethatwithlow resistancefumeducts ahigh resistance diaphragm small hole diameter is used and vice versa Choosing the diaphragm using separate pipes Choosingthediaphragmusingcoaxial pipes Type Coaxial 60 100 Length up to 1 bend 1 metre 1 bend 3 metres 1 bend 3 metres 1 bend 4 metres 1 bend 5 metres Diaphragm to use 50 mm No diaph 45 mm 50 mm No diaph Coaxial 80 125 HF 24 HF...

Страница 26: ... getting onto theburneranddamagingit Ifmonitoringthecondensatetrap is not guaranteed it must be fitted with a suitable drain pipe andairtrap whichinitsturnmustbeappropriatelyconnected to a suitable drain Ref 1 2 3 4 5 6 No Pieces 1 1 1 1 36 1 Air bend 80 Horizontal air pipe 80 Windproof end piece Condensate collection cup coupling Vertical fume pipe 80 Outlet flue coupling Description Equivalent l...

Страница 27: ...4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 11 12 13 2 1 X5 TEST Transformer X12 1 2 1 2 3 4 5 6 7 8 9 X10 X8 X7 81 82 PMF03F JP02 JP01 Nat LPG X11 230V 24V 230V 24V X9 1 3 2 MV1 MV2 MV3 MV4 98 72 50 114 155 34 32 230V 50Hz 130 44 49 16 43 Key 16 Fan 32 Heating circulator 34 Heating temperature sensor 43 Air pressure switch 44 Gas valve 49 Safety thermostat 50 Heating thermostat 72 Room thermostat not sup...

Страница 28: ...perature exceeds 88 C It requires no manual resetting and closes the contacts again if the temperature falls under 70 C It is located on a bend in the exchanger pipe in a flat seat Ignition detection electrode see chap 2 4 Burner Unit Main electronic card TheelectroniccardisaHoneywellPMF03 partofthecardworksonlowvoltage 24V and the remainder on 230V see diagram and it is fitted with a fuse 2A Part...

Страница 29: ...sistance as the temperature decreasesandareconnecteddirectlytothemaincardX4 24V heating12 13 tap water 10 11 The heating sensor performs the antifreeze function too NTC sensor 0 3 6 9 12 15 18 21 24 27 30 33 0 20 40 60 80 100 120 Temperature C Resistance K Ohm 15 50 70 30 90 5 25 40 60 80 100 Temperature C Resistance K Ohm 3 6 1 7 8 0 92 10 5 3 2 5 1 25 0 68 15 6 25 3 ...

Страница 30: ...ature exceeds the temperature set on the panel by 1 or 2 C Test function Bridging the terminals of connector X5 turns on Test operation In this mode the boiler works as in heating mode but tap water operation idle time and modulation are turned off The test lasts 5 minutes Heating post circulation After the call for heating the circulator performs post circulation for approximately 6 minutes to pr...

Страница 31: ...trode within 10 sec safety time End of electric discharge Ionization working range 1 micro Ampere minimum for safety 2 3 micro Ampere minimum for working Ignition gas adjustment natural gas or LPG with potentiometer P4 Hot water taps closed Heating adjustment potentiometer OFF Switch ON Electrical power supply on card 230V Fuse OK LED 5 on System pressure 0 8 bar LED 5 not blinking Call for tap wa...

Страница 32: ...mperature The generator turns off when the desired temperature in the rooms is reached If the room thermostat is not installed the boiler will keep the system at the set system delivery setpoint temperature System temperature adjustment With knob B on the control panel we can set the required system temperature To prevent localized condensation on the fume circuit we recommend a minimum temperatur...

Страница 33: ...sec Theignitioncurveshouldberegulatedtakingaccountofthetypeofburnerandfuelused naturalgas orLPG P5 Minimum pressure adjustment potentiometer The potentiometer P5 is to be used if it is necessary to adjust the minimum current to the second coil of the gas valve This adjustment makes it possible to increase the gas valve minimum opening pressure electrically The potentiometer P5 is used when the mec...

Страница 34: ...n 1 and 1 5 bar YES Take the pressure to 1 1 5 bar Check the electrical connection of the water pressure switch NO Does the fan turn at top speed NO Proceed with diagram 2 NO YES Does the heating circulator turn If the boiler temperature is under 5 C the antifreeze protection is active NO Check the circulator connection YES Disconnect the heating temperature sensor Has the fan stopped Change the m...

Страница 35: ...nsor NO NO Is the relay RY100 closed YES YES Proceed with diagram 4 NO Check the limit thermostat YES Check and if necessary change the circulator Check and if necessary change the hot water sensor NO Is LED3 on Set the hot water temperature to maximum Check and if necessary change the flow sensor LED4 blinking NO Is the relay RY 100 closed NO YES YES YES YES Check and if necessary change the main...

Страница 36: ...ck and if necessary change the air pressure switch NO Check and if necessary change the fan YES Is the air pressure switch activated YES NO Check and if necessary change the air pressure switch YES Is the pressure difference in the air pressure switch greater than 180 Pascal Proceed with diagram 5 YES NO Check and clean the fan Check that the air inlet and fume outlet are correct and clean Check t...

Страница 37: ...he burner ignition pressure Check and if necessary clean the burner Check and if necessary clean the nozzles Check and if necessary clean the detection electrode Check that the ignition electrode is in the right position Check the connections Check and vent the gas supply Check and if necessary change the gas valve NO YES Check and if necessary change the ignition card NO LED2 shutdown comes on wi...

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Страница 40: ...37047 SAN BONIFACIO VR ITALY tel 045 6139411 tlx 480172 fax045 6100233 6100933 cod 354M009 0 ...

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