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Malfunctions, possible causes and solutions

BOILER STATUS

MALFUNCTION

PROBABLE CAUSE

USER'S TASKS

QUALIFIED PERSONNEL'S

TASKS

E12**

Water heater probe fault (KR/

KRB with external water heater,

optional and NTC probe,

optional for Kr, standard for

KRB).

Probe is disconnected.

Contact qualified personnel

Reconnect it.

Probe is faulty.

Contact qualified personnel

Replace it.

E15**

Return probe failure.

Probe is disconnected.

Contact qualified personnel

Reconnect it.

Probe is faulty.

Contact qualified personnel

Replace it.

E23**

External probe fault (only with

connected external probe).

Probe is disconnected.

Contact qualified personnel

Reconnect it.

Probe is faulty.

Contact qualified personnel

Replace it.

E31**

Remote Control connection

failure (only shown on Remote

Control display).

The Remote Control is not

connected to boiler board.

Contact qualified personnel

Reconnect it.

Remote control faulty.

Contact qualified personnel

Replace it.

Boiler board is faulty.

Contact qualified personnel

Replace it.

E40*

Fan failure.

Fan disconnected.

Contact qualified personnel

Reconnect it.

Fan faulty.

Contact qualified personnel

Replace it.

E44**

Ambient probe fault (only with

connected ambient probe).

Probe is disconnected.

Contact qualified personnel

Reconnect it.

Probe is faulty.

Contact qualified personnel

Replace it.

E70*

Problems with the air flow rate.

Possible clogging on flue gas

side of the heat exchanger.

Heat exchanger is clogged on

the flue gas side.

Contact qualified personnel

Check the heat exchanger.

E77

Problems in the electronic

board power supply.

Power mains not stable.

Contact qualified personnel

Check the power mains.

E78*

Flow temperature increases

too quickly.

Pump is seized.

Contact qualified personnel

Unseize the pump.

Pump is faulty.

Contact qualified personnel

Replace it.

Air present inside heating

system.

Contact qualified personnel

Bleed the air from the boiler

by opening the jollies on the

exchanger and pump.

E80*

The ∆T between flow and

return is not within the limits.

Flow and/or return probes are

faulty.

Contact qualified personnel

Replace them.

Obstructed bypass pipe

Contact qualified personnel

Remove any obstructions, or

replace the pipe.

The bypass valve is not

assembled or wrongly

assembled.

Contact qualified personnel

Restore bypass valve correct

assembling.

Heat exchanger primary circuit

is obstructed.

Contact qualified personnel

Clean or replace the exchanger.

E81*

The water circulation is the

boiler is not correct.

System pressure too low.

Contact qualified personnel

Check the system.

Water does not circulate

correctly in the system.

Contact qualified personnel

Check the system.

Содержание minorca kr

Страница 1: ...IST 03 C 972 01 MINORCA KC KR KRB 24 INSTALLATION USE AND MAINTENANCE EN Translation of the original instructions in Italian ...

Страница 2: ...requirements set forth by the prevailing rules We hereby inform you that certain models versions and or accessories relevant to the products this manual refers to might not be available in some countries Therefore it is recommended to contact the manufacturer or the importer in order to get the necessary information about the actual availability of such models versions and or accessories The manuf...

Страница 3: ...ssories or optional kits including the electric ones are to be installed Properly dispose of the packaging as all the materials can be recycled The packaging must therefore be sent to specific waste management sites After removing the packaging make sure that its elements clips plastic bags foam polystyrene etc are note left within the reach of children as they are potential hazard sources In the ...

Страница 4: ...nd windows Contact a Service Centre a qualified installer or the gas supply company Never use a flame to locate a gas leak The boiler is designed for installation in the countries indicated on the technical data plate installation in any other country may be a source of danger for people animals and or property The manufacturer will bear no contractual and tortious liability for failure to comply ...

Страница 5: ... 8 Connection to gas mains 37 3 9 Hydraulic connections 37 3 10 Connection to electrical mains 39 3 11 Connection to ambient thermostat optional 39 3 12 Installation of the ambient probe optional 39 3 13 Installation and operation with Open Therm Remote Control optional 40 3 14 Selecting the operating range in heating mode 40 3 15 Installation of the optional external probe and sliding temperature...

Страница 6: ...13 C33 coaxial ducts 34 Fig 11 Type C12 C33 coaxial pipes dimensione 34 Fig 12 Split pipe kit 0KITSDOP00 35 Fig 13 Dimensions for split pipes 35 Fig 14 Plugs position 36 Fig 15 Hole position 36 Fig 16 Connection to gas mains 37 Fig 17 Condensate drain 38 Fig 18 Thermoregulation curves 42 Fig 19 Available head 48 Fig 20 Wiring diagram KC 49 Fig 21 Wiring diagram KR 51 Fig 22 Wiring diagram KRB 53 F...

Страница 7: ...rameters and default values in relation to boiler type TSP0 I 43 Tab 9 Limits to be set for TSP parameters and default values in relation to boiler type TSP0 II 44 Tab 10 Limits to be set for TSP parameters and default values in relation to boiler type TSP0 III 45 Tab 11 Limits to be set for TSP parameters and default values in relation to boiler type TSP0 IV 46 Tab 12 Relationship between Tempera...

Страница 8: ... RESET 8 5 3 1 RESET 2 E Fig 1 Control panel A DHW setting DHW B Operating status selection and parameter confirmation C Alarm reset and back to the starting page during parameter selection D CH water temperature CH and parameter settings E LCD display F Heating system water pressure gauge ...

Страница 9: ...ted Display of CH temperature set point or function in progress 5 RESET indicator It is possible to reset the boiler Not used 6 Parameter editing indicator During parameter editing the wrench symbol stays on until the set datum is confirmed When edited parameter value is confirmed 7 Flue cleaning function indicator for the installer Flue cleaning function in progress Indicates that you are accessi...

Страница 10: ... in CENTRAL HEATING ONLY mode No active function Flow temperature displayed Boiler in SUMMER mode Domestic hot water withdrawal DHW temperature displayed Boiler in WINTER mode Domestic hot water withdrawal DHW temperature displayed Boiler in WINTER mode CH function active Flow temperature displayed Boiler in CENTRAL HEATING ONLY mode CH function active Flow temperature displayed 1 2 2 Malfunction ...

Страница 11: ...modes are enabled in sequence SUMMER WINTER CH ONLY OFF SUMMER operating status When the SUMMER mode is enabled only the DHW production function is active WINTER operating status When the WINTER mode is enabled both DHW and CH functions are active CH ONLY operating status When the CH ONLY mode is enabled only the heating water production function is active OFF operating status When the OFF mode is...

Страница 12: ...otection function This boiler is fitted with a freeze protection system which works when the following functions are activated OFF SUMMER WINTER CH ONLY DANGER The freeze protection function only protects the boiler not the whole heating system The central heating system can be effectively protected against icing by using specific anti freeze products that are suitable for multi metal systems WARN...

Страница 13: ...ng DHW or freeze protection request the pump continues to be powered for 30 seconds If a new central heating DHW or freeze protection request is received during this period the post circulation function is cancelled in order to fulfil the request 1 3 8 Timed post ventilation function After each central heating DHW or freeze protection request the fan continues to work for 10 seconds If a new opera...

Страница 14: ...f the boiler 1 3 11 Operation with optional remote control The boiler can also be connected to a Remote Control optional not compulsory supplied by the manufacturer so as to manage several boiler parameters such as boiler status selection ambient temperature selection CH system water temperature selection DHW temperature selection CH system and optional external water heater activation time progra...

Страница 15: ...low water pressure Fault code E04 is displayed on the LCD display in the event of shut down triggered by the water pressure switch Fill the system by working on filler cock A see Fig 2 Filler cock Water pressure must be 1 1 3 bars while the boiler is cold In order to restore water pressure proceed as follows Turn the filler cock anticlockwise to allow water to enter the boiler Keep the filler cock...

Страница 16: ...ether or not there is a Remote Control optional not compulsory If the boiler does not receive information from the Remote Control after the Remote Control itself is connected the boiler attempts to re establish communication for 60 seconds after which the fault code E31 is shown on the remote control display The boiler will continue to operate according to the settings on the touch screen and igno...

Страница 17: ...personnel only under the requirements set forth by the prevailing rules 1 6 Notes for the user WARNING Theusermayonlyaccesspartsoftheboilerthatcanbereachedwithoutusingspecialequipmentortools Theuserisnotauthorised to remove the boiler casing or to operate on any internal parts No one including qualified personnel is authorised to modify the boiler The manufacturer shall not be held responsible in ...

Страница 18: ...cs IPX4D electrically protected control panel Integrated modulating electronic safety board Electronic start up with built in igniter and ionisation flame detection Stainless steel fully pre mixed burner Mono thermal high efficiency heat exchanger made of aluminium with manual air purging device Twin shutter modulating gas valve with constant air gas ratio Modulating electronically managed combust...

Страница 19: ...tion heat input adjustment parameter Possibility to select the heating range standard or reduced Ignition flame propagation function CH thermostat timer 30 minutes adjustable Heating pump post circulation function in CH freeze protection and flue cleaning modes 30 seconds adjustable DHW post circulation function KC and KR KRB with optional water heater 30 seconds Post circulation function for heat...

Страница 20: ...nsions 114 31 66 60 62 67 82 63 81 91 700 400 245 152 5 52 126 250 R M C G F S Fig 3 Dimensions KC KR S Trap inspection cap M CH system flow 3 4 C Domestic hot water outlet 1 2 only KC G Gas inlet 1 2 F Cold water inlet 1 2 R CH system return 3 4 ...

Страница 21: ...1 66 60 62 67 82 63 81 91 700 400 245 152 5 52 126 250 R M MB G RB S Fig 4 Dimensions KRB S Trap inspection cap M CH system flow 3 4 MB Water heater secondary flow 1 2 G Gas inlet 1 2 RB Water heater secundary return 1 2 R CH system return 3 4 ...

Страница 22: ... on CH flow 4 CH flow water probe 5 Modulating fan 6 Main condensing heat exchanger 7 Air purging device 8 Air intake duct 9 Flue gas venting duct 10 Flue gas analysis ports 11 Flue gas thermostat on venting duct 12 Flue gas circuit safety pressure switch 13 Ignition detection electrode 14 Expansion vessel 15 Fan check probe 16 CH return water temperature probe 17 3 bar safety valve 18 Minimum pre...

Страница 23: ...exchanger 7 Air purging device 8 Air intake duct 9 Flue gas venting duct 10 Flue gas analysis ports 11 Flue gas thermostat on venting duct 12 Flue gas circuit safety pressure switch 13 Ignition detection electrode 14 Expansion vessel 15 Fan check probe 16 CH return water temperature probe 17 3 bar safety valve 18 Minimum pressure switch 19 Air purging device 20 Circulation pump 21 System unloading...

Страница 24: ...flow water probe 5 Modulating fan 6 Main condensing heat exchanger 7 Air purging device 8 Air intake duct 9 Flue gas venting duct 10 Flue gas analysis ports 11 Flue gas thermostat on venting duct 12 Flue gas circuit safety pressure switch 13 Ignition detection electrode 14 Expansion vessel 15 Fan check probe 16 CH return water temperature probe 17 3 bar safety valve 18 Minimum pressure switch 19 A...

Страница 25: ... pressure bar 0 5 Maximum CH system pressure bar 3 0 DHW maximum heat input kW 24 0 DHW minimum heat input kW 5 0 DHW circuit min pressure bar 0 5 DHW circuit max pressure bar 6 0 DHW specific flow rate ΔT 25K l min 14 6 DHW specific flow rate Δt 30K l min 12 2 Electric power supply voltage frequency V Hz 230 50 Power mains supply fuse A 3 15 Maximum power consumption W 85 Pump absorption W 41 Ele...

Страница 26: ...CH output Value referred to 15 C 1013 mbar cu m h 2 12 Propane gas consumption at maximum CH output kg h 1 55 Maximum CH working temperature C 83 Maximum DHW working temperature C 62 Total capacity of expansion vessel l 7 Maximum recommended system capacity Maximum water temperature 83 C expansion vessel pressure 1 bar l 100 Tab 3 General specifications KR KRB Description um Max output Min output ...

Страница 27: ...nual electricity consumption AEC 27 kWh Annual fuel consumption AFC 17 GJ A A Seasonal space heating energy efficiency class Water heating energy efficiency class For combination heaters Model s MINORCA KC 24 Condensing boiler yes Low temperature boiler yes B1 boiler no Cogeneration space heater no If yes equipped with a supplementary heater Combination heater yes For boiler space heaters and boil...

Страница 28: ...d power level indoors LWA 50 dbA A Seasonal space heating energy efficiency class Model s MINORCA KR 24 MINORCA KRB 24 Condensing boiler yes Low temperature boiler yes B1 boiler no Cogeneration space heater no If yes equipped with a supplementary heater Combination heater yes For boiler space heaters and boiler combination heaters Useful heat output For boiler space heaters and boiler combination ...

Страница 29: ... sturdiness avoiding weak areas do not install the boiler over appliances which may affect boiler operation e g cookers which produce steam and grease washing machines etc do not install boilers in locations with a corrosive or very dusty atmosphere such as hairdresser salons laundries etc as this may severely reduce the lifespan of the components of the boiler 3 3 Positioning the boiler Each boil...

Страница 30: ...mpianto riscaldamento Retorno instalación calefacción Retour instal lation Powrót systemu ogrzewania Retorno do sistema de aquecimento Возврат от системы отопления Terugvoer verwarming sinstallatie RL Rücklauf Heizanlage CH return Επιστροφή εγκατάστασης θέρμανσης Retur instalaţie încălzire Vratné potrubí ÚT Fűtési rendszer visszatérő csatlakozás Kalorifer dönüş M Mandata impianto riscaldamento Ida...

Страница 31: ...d 1 cm to the left of the boiler is left for casing removal Drill two 12 mm diameter holes in the wall for the wall plugs insert the wall plugs supplied with the boiler and apply and tighten the screws If necessary provide holes in the wall to allow air intake and or flue gas venting ducts to pass through it With reference to the lower part of the template position the fittings for the connection ...

Страница 32: ...r In case it is necessary to replace the safety device use only original spare parts supplied by the Manufacturer To reset the combustion gas exhaust control device operation it is necessary to press Reset DANGER For the air intake flue gas venting systems specific manufacturer approved condensate acid resistant pipes and systems must be used suitable for condensing boilers DANGER Flue gas venting...

Страница 33: ...the combustion chamber heat exchanger Type C33 Boiler intended for connection to vertical outlet and intake ducts connected to the outside by means of coaxial or split ducts The minimum distance between the air intake duct and the flue gas venting duct must be at least 250 mm whereas both terminals must be contained within a square measuring 500 x 500 mm The boiler is to be equipped with a fan mou...

Страница 34: ...rmissible length is to be reduced by 0 5 meter The wall terminal reduces maximum permissible length by 1 5 meters The air intake duct is to be tilted down by 1 toward its exit in order to avoid rain water to enter it C33 C33X installation type Minimum permissible length of vertical coaxial pipes is 1 meter Maximum permissible length of Ø 100 60 mm vertical coaxial pipes is 12 meters Maximum permis...

Страница 35: ...ssible length by 5 5 meters The wall terminal reduces maximum permissible length by 5 5 meters Fig 12 Split pipe kit 0KITSDOP00 250 400 700 74 Ø 80 155 152 5 126 Fig 13 Dimensions for split pipes 3 6 4 Air intake and flue gas venting via 60 mm split pipes WARNING The information given above is with reference to air intake flue gas venting ducts made from smooth rigid pipes approved and supplied by...

Страница 36: ...t the flue cleaning mode press RESET or wait 15 minutes 3 7 2 Measurement procedure The boiler is equipped with a tower allowing for air intake flue gas venting pipe connection see Fig 14 Plugs position and Fig 15 Hole position The tower is designed with two pre arranged openings directly accessing air and flue gas ducts see Fig 15 Hole position Remove caps A and B from the pre arranged openings o...

Страница 37: ...mains 3 9 Hydraulic connections 3 9 1 Central heating Prior to installing the boiler the hydraulic system is to be cleaned in order to remove impurities they could be present in system components and damage the pump and the heat exchanger The CH outlet and return pipes must be connected to the respective 3 4 connectors M and R on the boiler see Fig 8 Paper template When calculating the cross secti...

Страница 38: ...d by commonly marketed water softeners due to its chemical physical features may not be compatible with some components of the heating system as the latter is filled with DHW For this reason we recommend using polyphosphate dosing systems 3 9 3 Condensate drain Comply with condensate drain laws and standards applicable in the country of installation which are considered herein integrally transcrib...

Страница 39: ...iagrams on page 49 after eliminating the jumper supplied as a standard with the boiler The ambient thermostat cables are not to be grouped together in the same sheath as power mains supply cables 3 12 Installation of the ambient probe optional Boiler can be connected to a probe measuring the ambient temperature optional not compulsory supplied by the manufacturer If an ambient probe is installed t...

Страница 40: ... how to program the Remote Control refer to the instruction manual included in the Remote Control kit Board and Remote Control communicate in each operating mode OFF SUMMER WINTER CH ONLY Boiler display layout corresponds to the setting made from the Remote Control as for the operating mode The remote control may be used to view and set a number of special parameters denominated TSP parameters and...

Страница 41: ...ally modifies the CH flow temperature in relation to Measured external temperature Selected thermoregulation curve Selected fictitious ambient temperature The thermoregulation curve is selected via parameter P10 During adjustment the set value will flash on LCD Such value can also be read as parameter TSP10 on the Remote Control when installed The relation between parameter TSP10 setting and the t...

Страница 42: ...ller 100 90 80 70 60 50 40 30 20 10 0 20 16 12 8 4 0 4 8 12 16 20 24 28 32 36 40 3 0 2 5 2 0 1 5 1 0 0 8 0 6 0 4 0 2 C C Fig 18 Thermoregulation curves Tm indicates flow water temperature in C Te indicates external temperature in C ...

Страница 43: ...rating status selection To quit the parameter editing mode press the Reset button Parameter Settable values Default values Notes P0 TSP0 Fuel gas type 0 1 According to the model 0 natural gas 1 propane P3 TSP3 Boiler type selection 1 3 According to the model 1 combined instantaneous 2 heating only 3 with water heater P4 TSP4 Fan speed at burner maximum output TSP5 255 Hz According to the model 164...

Страница 44: ...C 0 C resolution 0 1 only with connected ambient probe P25 TSP25 Type of modulation with connected ambient probes 0 1 1 0 on off 1 ambient probe modulation P26 TSP26 Flow temperature with P21 0 and P25 0 0 78 C 60 C only with connected ambient probe P27 TSP27 Heating timer reset temperature 20 78 C 40 C P28 TSP28 Type of temperature visualization on display 0 3 0 0 flow temperature 1 ambient probe...

Страница 45: ...mperature With P38 0 water heater flow temperature P38 water heater set point P39 heating temperature minimum limit for STANDARD range 20 59 C 20 C P40 heating temperature maximum limit for STANDARD range 60 78 C 78 C P41 heating temperature minimum limit for REDUCED range 20 30 C 20 C P42 heating temperature maximum limit for REDUCED range 31 45 C 45 C P43 Ambient or external temperature only wit...

Страница 46: ...splay of third last boiler shut down Shut down code P55 display of number of days since third last shut down P56 Display of fourth last boiler shut down Shut down code P57 display of number of days since fourth from last shut down P58 Display of fifth last boiler shut down Shut down code P59 display of number of days since fifth from last shut down P60 Number of faults since last reset P61 Board u...

Страница 47: ...ety pressure switch will not electrically enable the burner ignition when water pressure is below 0 4 0 6 bar The CH system water pressure must not be lower than 1 bar Otherwise fill the heating system The procedure is to be followed while the system is cold Pressure gauge is used to read pressure inside the heating circuit 3 18 Starting up the boiler 3 18 1 Preliminary checks Before starting the ...

Страница 48: ...ration In the fixed speed operating mode circulation pump speed remains constant at a value set in the boiler parameters During DHW phase circulation pump works at a fixed speed set in the boiler parameters WARNING Circulation pump is set to constant ΔT operating mode during production For a correct operation of the boiler it is recommended not to change factory setting Should it be necessary to c...

Страница 49: ...49 Instructions for the installer 3 20 Wiring diagrams 1 2 3 4 1 2 3 4 P P 230Vac 50Hz P VG V SM SS SEXT SAMB APS FT TS DK MDV 1 2 3 4 FUSE 3 1 SR P FL PWM P PWM V CR TA E Fig 20 Wiring diagram KC ...

Страница 50: ...w switch SR return NTC temperature probe 10k Ohm a 25 C B 3435 SS NTC DHW probe 10k Ohm at 25 C B 3435 SM CH NTC temperature probe 10k Ohm a 25 C B 3435 PWM P PMW signal cable for circulation pump PWM V PMW signal cable for fan E ignition flame detection electrode Connections performed by the installer 1 2 NTC external probe 10k Ohm at 25 C B 3977 or ambient NTC probe 10k Ohm at 25 C B 3977 SEXT S...

Страница 51: ...51 Instructions for the installer 3 4 1 2 1 2 3 4 VG V 230Vac 50Hz P 1 2 3 4 FUSE 3 1 PWM P PWM V SB TB MDV SEXT SAMB CR TA E P P SM APS DK FT TS SR 5 6 7 8 9 10 1112 Fig 21 Wiring diagram KR ...

Страница 52: ... temperature probe 10k Ohm a 25 C B 3435 PWM P PMW signal cable for circulation pump PWM V PMW signal cable for fan E ignition flame detection electrode Connections performed by the installer 1 2 NTC external probe 10k Ohm at 25 C B 3977 or ambient NTC probe 10k Ohm at 25 C B 3977 SEXT SAMB 3 4 room thermostat or Remote Control TA CR 5 6 7 8 electric deviating valve 5 neutral 6 not used 7 DHW NC 8...

Страница 53: ...53 Instructions for the installer 3 4 1 2 1 2 3 4 VG V 230Vac 50Hz P 1 2 3 4 FUSE 3 1 PWM P PWM V SB TB SEXT SAMB CR TA E P P SM APS DK FT TS SR 5 6 7 8 9 10 1112 MDV Fig 22 Wiring diagram KRB ...

Страница 54: ...external probe 10k Ohm at 25 C B 3977 or ambient NTC probe 10k Ohm at 25 C B 3977 SEXT SAMB 3 4 room thermostat or Remote Control TA CR 5 6 not used 7 8 not used 9 10 water heater probe SB 11 12 water heater thermostat TB 3 20 1 Relationship between temperature and nominal resistance of all NTC probes B 3435 T C 0 2 4 6 8 0 27203 24979 22959 21122 19451 10 17928 16539 15271 14113 13054 20 12084 11...

Страница 55: ...boiler from the electric power supply Close the gas cock Remove boiler outer front panel Turn the electronic board box downwards Disconnect the gas pipe from the gas valve see Fig 23 Gas diaphragm replacement Replace the gas diaphragm A with the one of the new gas type see Fig 23 Gas diaphragm replacement A Fig 23 Gas diaphragm replacement Reconnect the gas pipe to the gas valve Refit the boiler o...

Страница 56: ... I Set flue gas CO2 content by turning the ratio adjuster B see Fig 24 Adjusting CO2 value and ensure that reading falls within the limits of Tab 13 Flue CO2 content Let boiler flue cleaning function on and continue with the next point Minimum heating output adjustment Minimum heating output adjustment Set boiler min output operation by keeping CH button pressed until the value corresponding to fa...

Страница 57: ...s type is correct for the boiler calibration convert the boiler to the available gas when necessary this operation must only be performed by qualified technical personnel the gas supply cock is open there are no fuel gas leaks the main switch installed ahead of the boiler is turned on the 3 bar safety valve is not stuck there are no water leaks the condensate trap installed on the boiler is discha...

Страница 58: ...k for water leaks and oxidised areas on the boiler s couplings Check efficiency of the system safety valve Check expansion vessel filling pressure Check water pressure switch efficiency Check boiler combustion parameters by flue gas analysis check the state of combustion fan Check correct draining of condensate from the condensate trap installed on the boiler The following cleaning is to be done C...

Страница 59: ...al procedures carried out by qualified personnel only The user is not authorised to carry out such operations Decommissioning disassembly and disposal operations must be performed with boiler cold and disconnected from gas and power mains The materials the boiler is made of can all be recycled Once disassembled boiler must be disposed of in accordance with the national prevailing regulations ...

Страница 60: ...ce the electrode Electronic board does not detect flame it is faulty Contact qualified personnel Replace electronic board Ignition heat input setting is too low Contact qualified personnel Increase it Minimum heat input is not set correctly Contact qualified personnel Check burner setting E02 Flow temperature exceeded the max allowed value Circulation pump is faulty Contact qualified personnel Rep...

Страница 61: ...ntact qualified personnel Reconnect it Probe is faulty Contact qualified personnel Replace it E70 Problems with the air flow rate Possible clogging on flue gas side of the heat exchanger Heat exchanger is clogged on the flue gas side Contact qualified personnel Check the heat exchanger E77 Problems in the electronic board power supply Power mains not stable Contact qualified personnel Check the po...

Страница 62: ...62 ...

Страница 63: ...63 Page left intentionally blank ...

Страница 64: ... 878 31 Fax 39 0365 878 304 e mail info fondital it www fondital com The manufacturer reserves the right to modify his her products as deemed necessary without altering the basic characteristics of the products themselves Uff Pubblicità Fondital IST 03 C 972 01 Aprile 2016 04 2016 ...

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