Fondital MAUI KR 240 Installation, Use And Maintenance Manual Download Page 7

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STRUCTURE OF MAIN COMPONENTS

Front panel

Gas valve

Gas pressure switch

Trap pressure switch

Water pressure sensor

Pressure gauge

Return probe

System return collector

Boiler discharge cock

Supporting feet

Castor

Condensate trap

Condensate collection tank

Flue gas vent connection

Gas supply pipe

Boiler body

Inspection and cleaning doors

Automatic bleed valve

Flow probe

System flow collector

Top panel

Burner

Fan

Ignition electrodes

Flame detection electrode

Electrical connection terminal box

Side panels

Combustion air intake

Boiler board container

Control panel

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GENERAL

Summary of Contents for MAUI KR 240

Page 1: ...IST 03 C 640 01 EN installation use and maintenance MAUI KR 115 280 ...

Page 2: ...fied Technical Service personnel with the maintenance of the device making sure that they use only original spare parts This manual represents an integral part of the device and must therefore be kept carefully for further reference and or for being supplied along with the device in case it is transferred to another Owner or User Best regards The Management MAUI devices comply with Gas Appliances ...

Page 3: ...29 SYSTEM FILLING AND EMPTYING 30 MENU NAVIGATION AND STRUCTURE 31 Meaning of user menu lines 33 Technical menu navigation 34 Meaning of technical menu items 39 COMMISSIONING 42 Preliminary activities 42 Commissioning 42 User interface setup from technical menu 43 Factory setting verification editing 45 Gas change 46 Thermal unit ignition 47 MANUAL TEST function 47 Safety shutdown 49 Safety stop 4...

Page 4: ...Technical Service to provide you with a copy It is recommended to service the device at least once a year SAFETY WARNINGS AND STANDARDS IT IS FORBIDDEN to let children or unassisted disabled people carry out the setting of the device IT IS FORBIDDEN to operate electrical devices or equipment such as switches telephones household appliances etc if you smell gas or unburnt gases If this happens proc...

Page 5: ...power supplies must be on When designing the device specific solutions were implemented to achieve constant and optimal air gas mixing reduce heat losses reduce noise level MAUI KR 115 280 thermal units are preset for connection to 0 10 V DC controls and for cascade type operation of up to 6 units They can be fitted with different system accessories as for instance a mixing bottle or a water circu...

Page 6: ...g plate or any other event preventing a clear identification of the product will make any installation and or maintenance work extremely difficult IDENTIFICATION The device is identified through the Rating Plate applied to the casing 6 GENERAL ...

Page 7: ...ue gas vent connection 15 Gas supply pipe 16 Boiler body 17 Inspection and cleaning doors 18 Automatic bleed valve 19 Flow probe 20 System flow collector 21 Top panel 22 Burner 23 Fan 24 Ignition electrodes 25 Flame detection electrode 26 Electrical connection terminal box 27 Side panels 28 Combustion air intake 29 Boiler board container 30 Control panel 1 2 3 24 25 27 12 14 16 17 22 30 4 5 7 6 8 ...

Page 8: ...s temperature 50 30 40 45 C Flow gas mass flow at Qn 80 60 49 1 64 6 86 1 99 5 110 8 g s Flow gas mass flow at Qmin 80 60 9 8 16 1 16 3 19 1 21 5 g s Max condensate production 15 19 25 30 36 l h CO2 max min G20 average values 9 3 9 1 CO2 max min G31 average values 10 6 10 3 CO 25 30 35 20 28 ppm NOx 15 20 18 18 18 ppm NOx Class 5 ELECTRICAL DATA Power absorption 225 260 320 320 320 W Input voltage...

Page 9: ... 2 Flow probe 3 Boiler body 4 Gas pressure switch 5 Pressure gauge connection 6 Return probe 7 Water pressure sensor 8 Boiler discharge cock 9 Condensate trap 10 Boiler body probe 11 Safety thermostat 12 Flue gas vent probe 1 1 2 2 11 10 12 3 4 4 6 7 7 5 8 9 9 9 GENERAL ...

Page 10: ...malfunctioning of the device Upon commissioning the device it is recommended to check the rotation of the pump shaft IT IS FORBIDDEN to operate the pumps without water The absorption of the selected pumps must suit the fuse installed in the electric panel 6 3A 0 Pressure loss mbar Flow m3 h 1000 1100 1200 1300 900 800 700 600 500 400 300 200 100 0 2 4 6 8 10 12 14 16 18 20 115 150 200 240 280 DESC...

Page 11: ...afety devices DSP User interface with display Ip Main switch with light signalling Fu Main fuse 10A TST Manual reset safety thermostat Sbs DSP Fu Ip TST Fpc1 Primary pump fuse 1 6 3A Fpbl Water heater pump fuse 6 3A Fpc2 Primary pump fuse 2 6 3A Fpcs Cascade pump fuse 6 3A 11 GENERAL ...

Page 12: ...ng the device keys data ora data Ext temp 7o C 69 o 0 0 OFF OFF ora DISPLAY SYMBOL DESCRIPTION Lunedi 24 Settembre2012 Ext temp 5o C 80 o 0 0 ON ON 09 37 Central heating D H W SET DATE FLOW TEMPERATURE CURRENTLY DETECTED DHW REQUEST ENABLED DETECTEDTEMPERATURE EXTERNAL PROBE Operating mode START SCREEN SET TIME BOILER WATER PRESSURE CH REQUEST ENABLED MAUIKR115 280 12 GENERAL ...

Page 13: ... 0 0 OFF 09 37 ON Monday 24 September2012 Ext temp 7o C 69 o 0 0 ON ON 09 37 J ECO Manual Reduces by a set value the DHW and CH water delivery temperature reduced operation Monday 24 September2012 Ext temp 7o C 69 o 0 0 ECO ECO 09 37 eco E ESC Interrupts the current activity and returns to the start screen F MENU Displays the menu selection page USER or ENGINEER MENU USER TECHNICIAN data Ext temp ...

Page 14: ...the selected menu or sub menu line confirming the new value that was entered DHW setting 1 DHW setpoint 2 ECO setpoint reduction 3 Scheduler set to confirm oK DHW setpoint 60 to confirm oK A RED top Allows accessing the USER menu increasing the value to be edited Hold the key for fast scrolling MENU USER TECHNICIAN a A A DHW setpoint 70 to confirm oK a A A A RED middle Allows accessing the Technic...

Page 15: ...switch Fuse Fuse Fuse Fuse Shutdown signalling Relay 1 Relay 2 Relay 3 Fuse Relay 4 Boiler Pump Boiler Pump 2 Cascade Pump Modulation Cascade Pump Water heater Pump Ambient Thermostat External Probe Remote Alarm Flue Gas Clapper valve Cascade Probe 0 10V Ambient thermostat for low voltage Pump Modulation Master Communication Slave Communication ISPESL KIT TS PRmax Deviating valve Water heater Ther...

Page 16: ...t catalogue b WARNINGS Always use suitable equipment and accident prevention protections when unpacking and handling the device The manual represents an integral part of the device and it is advisable to read it carefully before installing and commissioning the device Moreover it must be kept carefully for further reference and or in case the system is transferred to another Owner or User DIMENSIO...

Page 17: ...case of manual handling do not exceed the maximum weight lifted per person INSTALLATION ROOM The installation room must always comply with the Technical Rules and the prevailing Laws It must feature suitably sized aeration openings CLEAR ZONES AS AN INDICATION b WARNINGS Take into due consideration the space needed to access the safety setting devices and to carry out maintenance operations IT IS ...

Page 18: ...nce even if the amount of drained water seems to be insignificant For instance install suitable cut off valves to clean the filters The manufacturer will not be held responsible for any damages resulting from a wrong execution of the flue gas vent or from continuous water make ups in the thermal unit Before installing the device make sure to clean piping and heating bodies thoroughly CHARACTERISTI...

Page 19: ...reduce the total hardness Moreover the water must be conditioned to keep the pH within the defined range in order to prevent corrosion Keep a log of the amount of filling and top up water of the water quality checks and of the water treatment checks Install a meter to check the amount of filling and top up water The conductivity of the untreated water in the system MUST NOT exceed 600 µs cm In cas...

Page 20: ...urn System flow BLOCK DIAGRAMS Example 1 CH only systems Example 2 System used for heating and for the production of DHW with water heater downstream the hydraulic separator 1 1 2 2 3 3 5 5 7 7 8 8 9 9 9 9 9 9 9 9 10 10 14 11 15 15 11 9 9 13 13 12 12 16 9 9 4 4 4 4 4 6 6 ...

Page 21: ...w preventing devices in systems filled with freeze protection products The selection and installation of the system components are under the responsibility of the installation technician who shall comply with the prevailing Laws and with the good practice rules The expansion tank must be capable of completely absorbing the expansion of the fluid contained in the system WARNINGS In case DHW is prod...

Page 22: ...ices must be connected as described below The connections must be carried out by the installation technician or by qualified personnel To access the terminal box MC Remove the front panel 1 Insert the cables in the specific tearproof cable glands 2 located on the terminal box MC and run them through the pipe 3 placed inside the casing Upon completing the connections refit the front panel 1 Connect...

Page 23: ...r Thermostat Water Heater Probe Water heater Thermostat Water Heater Probe 0 10V Boiler Pump Modulation Ambient thermostat for low voltage 44 43 MC Flue Gas Clapper valve Ambient thermostat for low voltage 44 43 CONNECTIONS FOR OPERATION IN CH AND DHW PRODUCTION MODE WITH WATER HEATER PUMP AND BOILER PUMP 2 SYSTEM PUMP example no 2 on page 20 CONNECTIONS FOR OPERATION IN CH AND DHW PRODUCTION MODE...

Page 24: ...out the electrical connections NOTE Cable minimum section 1 mm2 Maximum connection length 50 m Non polarised connection terminals Use coaxial shielded cables with double wire and connect the braiding to ground earth b WARNINGS It is compulsory to use a line isolator omnipolar magnetic breaker compliant with the EN Standards To connect L Phase N Neutral NOT to use cables having a cross section smal...

Page 25: ...d free from processing residuals It is recommended to install a suitably sized filter b WARNINGS The gas supply system must be suitable for the flow rate of the device and must be equipped with all the safety and check devices as provided for by the Prevailing Standards After completing the installation check connection sealing Hydraulic connections MAUI KR 115 280 115 150 200 240 280 GAS Gas supp...

Page 26: ...must ensure the minimum vacuum defined by the prevailing Technical Standards taking into account a zero pressure at the flue gas system duct connection and it must feature a condensate drain The boiler condensate drain must discharge only the condensate coming from the boiler and from the flue gas system duct Connect the condensate collector trap with a white water drain Vent ducts if not insulate...

Page 27: ...Y to fit them with flue gas system ducts and combustion air intake ducts compliant with said types of installation C53 C83 C63 C43 In case ducts and outlets from another manufacturer are used C63 type they must be approved In the case of flue gas vent ducts the materials used must furthermore be compatible with the condensate products When dimensioning the ducts take into account the values of the...

Page 28: ...stem ducts of unsuitable type or size may cause problems to the combustion parameters and generate noise IT IS FORBIDDEN to operate the device if the flue gas vent ducts and combustion air intake ducts are unsuitable Arrange for a 3 inclination of the flue gas vent duct toward a condensate collector Upon delivery the thermal unit is in the B23 configuration To draw air from the outside it is neces...

Page 29: ... separately upon request b WARNINGS The condensate drain duct must be tight and have dimensions suitable for the trap Moreover it must not have any narrowing or reduction of the i tilting which should be to 3 Condensate must be drained in accordance with the Prevailing National or Local Standards Prior to commissioning the system fill the trap with water VENTING DUCT boiler condensing chimney cons...

Page 30: ... the system Turn the system IG and the device Ip main switches to OFF FILLING Make sure the discharge cock 1 is closed Make sure the preload pressure of the expansion tank s is correct Open the shut off devices CI of the hydraulic system and start filling slowly until the value of about 2 bar when not heated can be read on the pressure gauge 2 Close the shut off devices CI of the hydraulic system ...

Page 31: ...NCE 5 SETTINGS 6 DIAGNOSTICS to confirm oK A D B C PASSWORD C User menu 1 HEATING 2 DOMESTIC HOT WATER 3 SETTING SYSTEM 4 DIAGNOSTICS 5 USER SETTING 6 CASCADE 7 FACTORY SETTINGS to confirm oK A D B C User menu 1 HEATING 2 DOMESTIC HOT WATER 3 SETTING SYSTEM 4 DIAGNOSTICS 5 USER SETTING 6 CASCADA 7 FACTORY SETTINGS to confirm oK A C Navigation procedure The device default factory configuration is S...

Page 32: ...ays of the week 3 HOLIDAY C 1 CH holiday setpoint C 20 C 20 absolute T max D B D 2 DHW holiday setpoint C 80 C 30 90 C 4 MAINTENANCE C 1 Service information C display only D B D 2 Service due date C display only User menu navigation MENU USER TECHNICIAN A A A User menu 1 HEATING 2 DOMESTIC HOT WATER 3 HOLIDAY 4 MAINTENANCE 5 SETTINGS 6 DIAGNOSTICS to confirm oK A User menu 1 HEATING 2 DOMESTIC HOT...

Page 33: ...tion Flow temperature reduction value setting for reduced capacity day or night 1 3 1 Enable Disable local timer Enabling or Disabling the CH time slots set for different week days 1 3 2 Timer setting Setting the CH time slots valid for different week days 2 DHW 2 1 Temperature setting range DHW temperature setpoint setting in the water heater 2 2 ECO setpoint reduction Water heater DHW temperatur...

Page 34: ...CA 5 IMPOSTAZIONI UTENTE 6 CASCATA 7 IMPOSTAZIONI DI FABBRICA conferma oK A D B vedere ALBERO di NAVIGAZIONE C Menù tecnico 1 RISCALDAMENTO 2 ACQUA SANITARIA 3 IMPOSTAZIONE SISTEMA 4 DIAGNOSTICA 5 IMPOSTAZIONI UTENTE 6 CASCATA 7 IMPOSTAZIONI DI FABBRICA conferma oK A vedere ALBERO di NAVIGAZIONE C followed by the key C The system allows exiting and then re entering the technical menu without enter...

Page 35: ...D 3 Outside temperature for CH off C OFF OFF 7 25 C D 4 OTC setpoint table C display only D 5 OTC curve C display only D 4 CH pump settings C 1 Post pump time C 5 1 30 D 5 CH anticycling timer C 2 0 15 D 6 CH request type C External probe Ambient thermostat 0 10V 0 10V Signal SP C Ambient thermostat External probe Amb therm 0 10V 0 10V Signal SP 2 advanced DHW settings C 1 DHW power C 1 Maximum ou...

Page 36: ...d Disabled D 7 Heat exchanger protection C Enabled Enabled Disabled D 8 Heat exchanger delta C 10 C 5 20 C D 9 Modbus parameters C 0 0 255 D 10 3 way valve travel time C 10s 1 255s D 2 User interface settings C 1 Select language C Italiano English Italiano D 2 Select units C Celsius Fahrenheit Celsius D 3 Set date C Enter the date D 4 Set time C 24 hours 24 hours 12 hours D 3 System settings C 1 S...

Page 37: ... ECO setpoint reduction C 20 C 0 50 C D 3 Timer setting C 1 Enable Disable local timer C Disabled Enabled Disabled D 2 Timer setting C Monday days of the week D 3 Holiday C 1 CH temperature C 20 C 20 90 C D 2 DHW temperature C 30 C 30 90 C 6 CASCADE C 1 Cascade set C 1 Cascade switch delay C 60s 0 255 s D B D 2 Cascade min power C 18 0 100 D 3 Single burner power C 115kW 0 2550kW D 4 Boiler for DH...

Page 38: ... D 3 115kW C Set D 2 LPG G30 C 1 60kW C Set D 2 100kW C Set D 3 115kW C Set D 2 Floor standing boiler C 1 G20 C 1 115kW C Set D 2 150kW C Set D 3 200kW C Set D 4 240kW C Set D 5 280kW C Set D 2 G31 C 1 115kW C Set D 2 150kW C Set D 3 200kW C Set D 4 240kW C Set D 5 280kW C Set D 3 Floor standing boiler C 1 G20 C 1 340kW C Set D 2 410kW C Set D 3 480kW C Set D 4 550kW C Set D 5 620kW C Set 38 INSTA...

Page 39: ...curve 1 3 5 Heating curve View the set climate curve graph 1 4 1 Post circulation time Post circulation time setting 1 5 Ignition timer Time interval during which any burner ignition requests are ignored 1 6 Request type Select the device to be used External probe ambient thermostat 0 10V output signal 0 10V SP temperature signal 2 DOMESTIC HOT WATER 2 1 1 Maximum output Maximum output setting 2 1...

Page 40: ...ge Language selection English or Italian 3 2 2 Unit of measurement Unit of measurement selection Celsius or Fahrenheit 3 2 3 Set date Current date setting of modification 3 2 4 Set time 12 or 24 hour format selection Current time setting or editing 3 3 1 Service information Technical Service telephone number entry 3 3 2 Maintenance date Next maintenance date entry 4 DIAGNOSTICS 4 1 Boiler informat...

Page 41: ...ith different heat output values e g when there is a reduced heat output generator for DHW production If multiple generators with the same heat output are used together enabling the algorithm is not necessary 6 1 8 Maximum cascade pump speed Adjustment of the maximum speed allowed for the cascade pump 6 1 9 Minimum cascade pump speed Adjustment of the minimum speed allowed for the cascade pump 6 2...

Page 42: ...the system is correct and that the piping is purged the hydraulic system pressure is above 2 bar when the system is not heated and that the circuit is deaerated the expansion tank is installed correctly dimensioned and preloaded the electrical connections are correctly executed the flue gas vent ducts and the combustion air intake openings if available have been suitably carried out the safety val...

Page 43: ...INGS 4 DIAGNOSTICS 5 USER SETTINGS 6 CASCADE 7 RESTORE FACTORY SETTINGS to confirm oK D 2 TIMES C to select 3 SYSTEM SETUP to confirm and access the selected line Technical menu 1 HEATING 2 DOMESTIC HOT WATER 3 SYSTEM SETTINGS 4 DIAGNOSTICS 5 USER SETTINGS 6 CASCADE 7 RESTORE FACTORY SETTINGS to confirm oK System settings 1 Boiler parameters 2 User interface settings 3 Service settings to confirm ...

Page 44: ... the selected line User interface settings 1 Select language 2 Select units 3 Set date 4 Set time to confirm oK Set date to confirm Toselect oK 04 01 2001 A OR A D A OR A D A OR A C to set the current day to select the month to set the current month to select the year to set the year to confirm set value and go back to line 3 Set date Set date to confirm Toselect oK 04 01 2001 a a A Set date to co...

Page 45: ...OR A C to set the current time to select minutes to set minutes to confirm set value and go back to line 4 Set time Set time to confirm Toselect oK 16 05 a a A Set time to confirm Toselect oK 16 20 a a A User interface settings 1 Select language 2 Select units 3 Set date 4 Set time to confirm oK Factory setting verification editing The device default factory configuration is outlined in paragraph ...

Page 46: ...cian menu 1 ADVANCED CH SETTINGS 2 ADVANCED DHW SETTINGS 3 SYSTEM SETTINGS 4 DIAGNOSTICS 5 USER SETTINGS 6 CASCADE 7 RESTORE FACTORY SETTINGS to confirm oK D 7 TIMES C to select 8 TYPE OF BOILER to confirm and access the selected line Technical menu 3 SYSTEM SETTINGS 4 DIAGNOSTICS 5 USER SETTINGS 6 CASCADE 7 RESTORE FACTORY SETTINGS 8 BOILER TYPE to confirm oK BOILER TYPE 1 Wall hung boiler 2 Floo...

Page 47: ...equency 55 5 246 7 55 208 3 61 5 280 66 290 65 290 Hz Operating rpm with G31 1665 7400 1650 6250 1230 5600 1320 5800 1300 5800 rpm Frequency 55 5 246 7 55 208 3 61 5 280 66 290 65 290 Hz Thermal unit ignition Now to switch on the thermal unit Make sure that the jumper or TA between terminals 7 and 8 is present and sending an ignition request to the boiler If these conditions are not present the bo...

Page 48: ...minutes to increase or decrease heat output from 0 to 100 Perform all checks described in section FUNCTIONAL CHECKS ADJUSTMENT AFTER gas change on page 50 C to disable the MANUAL TEST function Key to press Description Display A 2 TIMES C A 3 TIMES C A 1 TIME C To enter PASSWORD 231 to set the first digit 2 to confirm and move to second digit to set the second digit 3 to confirm and move to third d...

Page 49: ...fault The device will restart automatically upon receiving the first heat request Visualization on Display Meaning Fault 7 Flue gas temperature out of safety limit High Flow Return ΔT Fault 11 Flow Return ΔT 5 C for at least 5 seconds in stand by continuously measured Fault 15 Upon start up Flow Temp Ret Temp 3 C Fault 16 Upon start up Flow Temp does not vary by at least 1 C Fault 17 Upon start up...

Page 50: ...and CO values with the aid of an analyser The opening for drawing the flue gas samples to be tested must be on the straight section of the flue gas system duct located at least 2 diameters away from the device outlet refer to the Prevailing Standards Compare the measured values with the values given in the table below taking into account a 5 tolerance DESCRIPTION MAUI KR 115 280 115 150 200 240 28...

Page 51: ...CATIONS table Measure the gas flow rate taking into account the corrective factors if any Measure CO2 and CO values with the aid of an analyser Compare the measured values with the values given in the table on the previous page In case they do not match gradually turn the MIN gas setting screw located on the gas valve until correct combustion values can be detected on the analyser Press the Ckey t...

Page 52: ...ess C and check the current values If they need editing select and access the line that needs editing Edit the value and confirm by pressing C IMPORTANT After setting establishing the desired values it is recommended to access lines 4 External temperature setpoint table and 5 Heating curve to view the device operating mode and if necessary amend any values it may be necessary to wait one minute so...

Page 53: ...e 35 Then select 0 10 V signal request for heat output control or 0 10 V SP signal request for temperature control A with increasing voltage voltage 2 V OFF 2 V voltage 10 V linear variation of Heat output or Temperature B with decreasingvoltage 2 V voltage 10 V linear variation of Heat output or Temperature 1 V voltage 2 V Minimum heat output or Minimum Temperature voltage 1 V OFF In both modes t...

Page 54: ...enabled setpoint corresponding to the ON mode comfort The temperature is regulated according to the external Temperature Request enabled setpoint fixed at Tmax set TA contact open Timer ENABLED Request disabled thermal unit in stand by Request disabled thermal unit in stand by Request disabled thermal unit in stand by Timer DISABLED Request enabled setpoint corresponding to the ECO mode The temper...

Page 55: ...2 DHW SETTING 3 HOLIDAY 4 MAINTENANCE 5 SETTINGS 6 DIAGNOSTICS to confirm oK Heating 1 DHW setpoint 2 ECO setpoint reduction 3 Scheduler set to confirm oK D 2 TIMES C to select 3 Timer setting to confirm and access the selected line Heating 1 CH set point 2 ECO setpoint reduction 3 Scheduler set to confirm oK Scheduler set 1 Enable disable on board scheduler 2 Scheduler set to confirm oK B D C to ...

Page 56: ...a a A Monday Friday toconfirm toselect Save exit oK 1 05 30 08 00 ON 2 3 4 5 6 a a A Monday Friday toconfirm toselect Save exit oK 1 05 30 08 00 ON 2 3 4 5 6 a a A D C to select Save and quit or Copy Day if you wish to copy the entered settings to the following day to save the entered settings and return to the line for the individual day or group of days previously selected Monday Friday toconfir...

Page 57: ... view the menu screen to enter the USER menu data Ext temp 7o C 69 o 0 0 OFF OFF ora MENU USER TECHNICIAN a A A D 2 TIMES C to select 3 HOLIDAY to confirm and access the selected line User menu 1 RISCALDAMENTO 2 DHW SETTING 3 HOLIDAY 4 MAINTENANCE 5 SETTINGS 6 DIAGNOSTICS to confirm oK Holiday 1 CH holiday setpoint 2 DHW holiday setpoint to confirm oK C A OR A C to select 1 CH temperature to set t...

Page 58: ...Ext temp 7o C 69 o 0 0 OFF OFF ora Holiday start 20 10 2012 to confirm oK a a A A OR A D A OR A D A OR A C to set holiday start day to select the month to set the month to select the year to set the year to confirm set values and enter the Holiday end screen NOTE for holiday end day month and year settings follow the Holiday start procedure Holiday start 30 10 2012 to confirm oK a a A Holiday star...

Page 59: ...lcohol or use specific products After cleaning carefully dry the casing b WARNINGS Use ONLY original spare parts when replacing components Do not use abrasive products petrol or trichlorethene INTERNAL CLEANING OF BOILER BODY AND BURNER For a correct device operation it is necessary to carry out a routine cleaning of burner and flue gas lines inside the exchanger It is essential to thoroughly remo...

Page 60: ...he Standards Disassembling and cleaning the exchanger Loosen the nuts 9 and remove the inspection doors 10 as well as their seals 11 Use a tube brush or any other suitable tool to clean the exchanger lines A tool metal blade 12 suitable for the mechanical cleaning of the flue gas lines can be supplied by Fondital as an optional After cleaning check the condition of the seals 6 and replace them if ...

Page 61: ...e table on page 59 Fault Cause Solution Gas smell Gas supply circuit Makesurethattheconnectionsaretight and that the pressure measurement points are closed Smell of unburnt products Flue gas circuit Check for Tightness of connections Absence of obstructions Combustion quality Irregular combustion Pressure of supply gas Check setting Burner and or exchanger fouled Check conditions Intake and or ven...

Page 62: ...ystem pressure Check filling pressure Check pressure reducer Check filling valve System expansion tank Check efficiency System pump s not working Pump seized electrical connections Check pump and connections Ambient thermostat Check ambient thermostat and connections Water heater pump not working Pump seized electrical connections Check pump Check electrical connection between the pump and the con...

Page 63: ...hermostat Sbs DSP Fu Ip TST DSP eco esc menu ok Lunedi 24 Settembre2012 09 37 DISPLAY SYMBOL DESCRIPTION Lunedi 24 Settembre2012 Ext temp 5o C 80 o 0 0 ON ON 09 37 Central heating D H W SET DATE FLOW TEMPERATURE CURRENTLY DETECTED DHW REQUEST ENABLED DETECTED TEMPERATURE EXTERNAL PROBE Operating mode START SCREEN SET TIME BOILER WATER PRESSURE CH REQUEST ENABLED 63 USE SYSTEM SUPERVISOR ...

Page 64: ...7o C 69 o 0 0 ON OFF 09 37 Monday 24 September2012 Ext temp 7o C 69 o 0 0 OFF 09 37 ON Monday 24 September2012 Ext temp 7o C 69 o 0 0 ON ON 09 37 data Ext temp 7o C 69 o 0 0 OFF OFF ora ECO Manual Reduces by a set value the DHW and CH water delivery temperature reduced operation Monday 24 September2012 Ext temp 7o C 69 o 0 0 ECO ECO 09 37 eco ESC Interrupts the current activity and returns to the ...

Page 65: ... menu line confirming the new value that was entered DHW setting 1 DHW setpoint 2 ECO setpoint reduction 3 Scheduler set to confirm oK DHW setpoint 60 to confirm oK RED top Allows accessing the USER menu increasing the value to be edited Hold the key for fast scrolling MENU USER TECHNICIAN a A A DHW setpoint 70 to confirm oK a A A RED middle Allows accessing the Technical menu decreasing the value...

Page 66: ...xt temp 7o C 69 o 0 0 OFF OFF hour MENU USER TECHNICIAN H A F A User menu 1 HEATINGO 2 DHW SETTING 3 HOLIDAY 4 MAINTENANCE 5 SETTINGS 6 DIAGNOSTICS to confirm oK A User menu 1 HEATING 2 DHW SETTING 3 HOLIDAY 4 MAINTENANCE 5 SETTINGS 6 DIAGNOSTICS to confirm oK A see NAVIGATION TREE display STAND BY Initial SCREEN D B C see NAVIGATION TREE C User menu navigation and structure The device default fac...

Page 67: ...f tough stains dampen the cloth in a 50 mixture of water and denatured alcohol or use specific products After cleaning carefully dry the casing WARNINGS Do not use abrasive products petrol or trichlorethene MAINTENANCE We wish to point out that the PERSON IN CHARGE OF THE THERMAL SYSTEM IS COMPELLED by Law to have the ROUTINE MAINTENANCE and the MEASURING OF THE COMBUSTION EFFICIENCY carried out T...

Page 68: ... 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 640 01 Ottobre 2014 10 2014 0LIBBCEN00 ...

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Summary of Contents for MAUI KR 240

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Fondital MAUI KR 240, Installation, Use And Maintenance Manual, Page: 7 / 68

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Summary of Contents for MAUI KR 240

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