Fondital ITACA KC 12 Installation, Use And Maintenance Manual Download Page 5

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TaBle oF ConTenTS

Warnings

General notes for installers, maintenance technicians, and users .....................................................................................................................................................page 3

Rapid operating instructions ................................................................................................................................................................................................................................page 4

1. Instructions for the user .....................................................................................................................................................................................................................................page 7

1.1. Control panel .....................................................................................................................................................................................................................................................page 7

1.2. Interpreting BOILER STATUS from LCD DISPLAY INDICATIONS .......................................................................................................................................................page 9

1.3. COMFORT enable/disable ............................................................................................................................................................................................................................page 13

1.4. Selecting the operating mode ....................................................................................................................................................................................................................page 14

1.5. Adjusting heating and DHW temperature .............................................................................................................................................................................................page 15

1.6. Time setting .......................................................................................................................................................................................................................................................page 16

1.7. "Day temperature" and "night temperature" setting .........................................................................................................................................................................page 17

1.8. "Manual" programme setting......................................................................................................................................................................................................................page 18

1.9. "Automatic" programme setting ................................................................................................................................................................................................................page 18

1.10. Heating programme mode ........................................................................................................................................................................................................................page 19

1.11. Parameter display .........................................................................................................................................................................................................................................page 20

1.12. Failures that cannot be reset .....................................................................................................................................................................................................................page 21

1.13. Boiler reset .......................................................................................................................................................................................................................................................page 21

1.14. Boiler operation .............................................................................................................................................................................................................................................page 22

1.14.1. Switching on ..........................................................................................................................................................................................................................................page 22

1.14.2. CH function ..............................................................................................................................................................................................................................................page 22

1.14.3. DHW function .........................................................................................................................................................................................................................................page 22

1.14.4. COMFORT function ...............................................................................................................................................................................................................................page 23

1.14.5. ANTI-FREEZE function ..........................................................................................................................................................................................................................page 23

1.14.5.1. Ambient probes anti-freeze function.....................................................................................................................................................................................page 23

1.14.5.2. Flow anti-freeze function............................................................................................................................................................................................................page 23

1.14.5.3. Plate DHW anti-freeze function ................................................................................................................................................................................................page 23

1.14.5.4. Water cylinder anti-freeze function ........................................................................................................................................................................................page 23

1.14.6. Pump and other component anti-seize function ......................................................................................................................................................................page 24

1.14.7. Operation with external probe (optional) ....................................................................................................................................................................................page 24

1.14.8. Operation with Remote Control (optional) .................................................................................................................................................................................page 24

1.15. Boiler shut-down ...........................................................................................................................................................................................................................................page 24

1.15.1. Burner shut-down .................................................................................................................................................................................................................................page 24

1.15.2. Shut-down due to incorrect air/flue gas system draught .......................................................................................................................................................page 24

1.15.3. Shut-down due to low water pressure ..........................................................................................................................................................................................page 25

1.15.4. Shut-down due to automatic filling failure ..................................................................................................................................................................................page 26

1.15.5. Shut-down for fan malfunction ........................................................................................................................................................................................................page 27

1.15.6 Alarm due to temperature probe malfunction ............................................................................................................................................................................page 27

1.15.7. Alarm due to Remote Control (optional) connection malfunction .....................................................................................................................................page 27

1.16. Maintenance ..................................................................................................................................................................................................................................................page 27

1.17. Notes for the user ..........................................................................................................................................................................................................................................page 27

2. Technical features and dimensions ...................................................................................................................................................................................................................page 28

2.1. Technical features .............................................................................................................................................................................................................................................page 28

2.2. Dimensions .........................................................................................................................................................................................................................................................page 29

2.3. Boiler layouts ......................................................................................................................................................................................................................................................page 32

2.4. Operating data ..................................................................................................................................................................................................................................................page 34

2.5. General characteristics ...................................................................................................................................................................................................................................page 35

3. Instructions for the installer ..................................................................................................................................................................................................................................page 37

3.1. Installation standards ......................................................................................................................................................................................................................................page 37

3.2. Installation .........................................................................................................................................................................................................................................................page 37

3.2.1. Packaging ....................................................................................................................................................................................................................................................page 37

3.2.2. Choosing where to install the boiler ................................................................................................................................................................................................page 37

3.2.3. Positioning the boiler .............................................................................................................................................................................................................................page 37

3.2.4. Installing the boiler .................................................................................................................................................................................................................................page 39

3.2.5. Boiler room ventilation ..........................................................................................................................................................................................................................page 39

3.2.6. Air intake and flue gas venting system ...........................................................................................................................................................................................page 40

3.2.6.1. Configuration of air intake and flue gas venting ducts ......................................................................................................................................................page 41

3.2.6.2. Ø 100/60 mm and Ø 125/80 mm air/flue gas coaxial duct system ................................................................................................................................page 41

3.2.6.3. Air intake and flue gas venting via 80 mm split pipes ........................................................................................................................................................page 43

3.2.6.4. Air intake and flue gas venting via 60 mm split pipes ........................................................................................................................................................page 43

3.2.7. Checking combustion efficiency ........................................................................................................................................................................................................page 44

3.2.7.1. Flue cleaning function ...................................................................................................................................................................................................................page 44

3.2.7.2. Measurement procedure .............................................................................................................................................................................................................page 44

3.2.8. Connection to gas mains .......................................................................................................................................................................................................................page 45

3.2.9. Hydraulic connections............................................................................................................................................................................................................................page 45

3.2.10. Connection to the electrical mains .................................................................................................................................................................................................page 46

3.2.11. Selecting the operating range in heating mode ........................................................................................................................................................................page 46

3.2.12. Connection to ambient thermostat (optional) ...........................................................................................................................................................................page 46

3.2.13. Installation and operation with Open Therm Remote Control (optional) ........................................................................................................................page 46

3.2.14. Installation of the (optional) external probe and sliding temperature operation .........................................................................................................page 47

3.2.15. TSP parameters that can be set from interface or Remote Control .....................................................................................................................................page 49

3.3. Filling the system ..............................................................................................................................................................................................................................................page 52

3.4. Starting up the boiler ......................................................................................................................................................................................................................................page 52

3.4.1. Preliminary checks ...................................................................................................................................................................................................................................page 52

3.4.2. Switching on and switching off ..........................................................................................................................................................................................................page 52

3.5. Circulation pump flow resistance ...............................................................................................................................................................................................................page 53

3.6. Wiring diagrams ................................................................................................................................................................................................................................................page 55

3.6.1. Wiring diagram KRB model ...................................................................................................................................................................................................................page 55

3.6.2. Forced circulation solar system with CH only boiler wiring diagram ....................................................................................................................................page 56

3.6.3. Multifunction relay wiring diagram ...................................................................................................................................................................................................page 56

3.6.4. Wiring diagram KC model .....................................................................................................................................................................................................................page 57

3.6.5. Forced circulation solar system with combi boiler wiring diagram .......................................................................................................................................page 58

3.6.6. Solar collector anti-freeze function ...................................................................................................................................................................................................page 59