Fondital ITACA KC 12 Installation, Use And Maintenance Manual Download Page 6

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3.6.7. Collector heat transfer function ..........................................................................................................................................................................................................page 59

3.6.8. Boiler cooling function ...........................................................................................................................................................................................................................page 59

3.6.9. Solar mode operation and failure signal .........................................................................................................................................................................................page 59

3.6.10. Natural circulation solar system with combi boiler wiring diagram ...................................................................................................................................page 60

3.6.11. Multifunction relay setting diagrams - KC and KRB models ...................................................................................................................................................page 61

3.7. Adaptation to other gas types and burner adjustment .....................................................................................................................................................................page 63

3.7.1. Switching from NATURAL GAS to PROPANE ..................................................................................................................................................................................page 63

3.7.2. Switching from PROPANE to NATURAL GAS .................................................................................................................................................................................page 63

3.7.3. Gas valve setting ......................................................................................................................................................................................................................................page 64

3.7.3.1. Maximum heat output adjustment ...........................................................................................................................................................................................page 64

3.7.3.2. Minimum heat output adjustment ...........................................................................................................................................................................................page 64

4. Testing the boiler ......................................................................................................................................................................................................................................................page 66

4.1. Preliminary checks ...........................................................................................................................................................................................................................................page 66

4.2. Switching on and switching off ...................................................................................................................................................................................................................page 66

5. Maintenance ..............................................................................................................................................................................................................................................................page 67

5.1. Maintenance schedule ...................................................................................................................................................................................................................................page 67

5.2. Combustion analysis .......................................................................................................................................................................................................................................page 67

6. Troubleshooting ........................................................................................................................................................................................................................................................page 68

PICTuRe IndeX

Fig. 1 - Control panel ...................................................................................................................................................................................................................................................page 7

Fig. 2 - Filler cock ............................................................................................................................................................................................................................................................page 26

Fig. 3 - Overall dimensions, KC model ...................................................................................................................................................................................................................page 29

Fig. 4 - Overall dimensions, KR model ...................................................................................................................................................................................................................page 30

Fig. 5 - Overall dimensions, KRB model ................................................................................................................................................................................................................page 31

Fig. 6 - Boiler layout, KC model .................................................................................................................................................................................................................................page 32

Fig. 7 - Boiler layout, KR model .................................................................................................................................................................................................................................page 32

Fig. 8 - Boiler layout, KRB model...............................................................................................................................................................................................................................page 33

Fig. 9 - Installation template ......................................................................................................................................................................................................................................page 38

Fig. 10 – Installation examples .................................................................................................................................................................................................................................page 40

Fig. 11 - Air intake and flue gas venting coaxial pipe system .......................................................................................................................................................................page 43

Fig. 12 - Dimensions for connection to air intake and flue gas venting coaxial pipe system ............................................................................................................page 43

Fig. 13 - Air intake and flue gas venting split pipe system ............................................................................................................................................................................page 44

Fig. 14 - Dimensions for connection to air intake and flue gas venting split pipe system .................................................................................................................page 44

Fig. 15 - Air intake and flue gas venting tower ...................................................................................................................................................................................................page 44

Fig. 16 - Openings for combustion efficiency measurement ........................................................................................................................................................................page 44

Fig. 17 - Gas mains connection .................................................................................................................................................................................................................................page 45

Fig. 18 - Central heating curves with external probe operation...................................................................................................................................................................page 48

Fig. 19 - Residual head curves to the system, KC/KR/KRB 12-24 models ..................................................................................................................................................page 53

Fig. 20 - Residual head curves to the system, KC/KR/KRB 28-32 model ....................................................................................................................................................page 54

Fig. 21 - Wiring diagram, KRB model ......................................................................................................................................................................................................................page 55

Fig. 22 - Forced circulation solar system with CH only boiler wiring diagram ........................................................................................................................................page 56

Fig. 23 - Multifunction relay wiring diagram .......................................................................................................................................................................................................page 56

Fig. 24 - Wiring diagram, KC model .........................................................................................................................................................................................................................page 57

Fig. 25 - Forced circulation solar system with combi boiler wiring diagram ...........................................................................................................................................page 58

Fig. 26 - Natural circulation solar system with combi boiler wiring diagram ..........................................................................................................................................page 60

Fig. 27 - Multifunction relay wiring diagram .......................................................................................................................................................................................................page 60

Fig. 28 - Relay with Remote Control and ambient thermostat 2 ..................................................................................................................................................................page 61

Fig. 29 - Relay with interface programming and ambient thermostat 2 ...................................................................................................................................................page 61

Fig. 30 - Relay with remote request .......................................................................................................................................................................................................................page 61

Fig. 31 - Relay with request .......................................................................................................................................................................................................................................page 61

Fig. 32 - Relay with alarm indication ......................................................................................................................................................................................................................page 62

Fig. 33 - Adaptation to other gas types ................................................................................................................................................................................................................page 64

Fig. 34 - Removing the mixer ....................................................................................................................................................................................................................................page 64

Fig. 35 - Changing nozzles .........................................................................................................................................................................................................................................page 64

Fig. 36 - Fitting the mixer ............................................................................................................................................................................................................................................page 64

Fig. 37 - Adjustment of the gas valve .....................................................................................................................................................................................................................page 65

TaBle IndeX

Table 1 - BOILER STATUS - LCD INDICATIONS during normal operation....................................................................................................................................................page 9

Table 2 - BOILER STATUS - LCD INDICATIONS in the event of malfunction ...............................................................................................................................................page 10

Table 3 - Displayable parameters with info button ...........................................................................................................................................................................................page 20

Table 4 - KC 12 model adjustment rates ...............................................................................................................................................................................................................page 34

Table 5 - KC 24 model adjustment rates ...............................................................................................................................................................................................................page 34

Table 6 - KC 28 model adjustment rates ...............................................................................................................................................................................................................page 34

Table 7 - KC 32 model adjustment rates ...............................................................................................................................................................................................................page 34

Table 8 - KR/KRB 12 model adjustment rates .....................................................................................................................................................................................................page 34

Table 9 - KR/KRB 24 model adjustment rates .....................................................................................................................................................................................................page 35

Table 10 - KR/KRB 28 model adjustment rates ...................................................................................................................................................................................................page 35

Table 11 - KR/RB 32 model adjustment rates .....................................................................................................................................................................................................page 35

Table 12 - General specifications, KC/KR/KRB model .......................................................................................................................................................................................page 35

Table 13 - Combustion specifications, KC/KR/KRB 12 model ........................................................................................................................................................................page 36

Table 14 - Combustion specifications, KC/KR/KRB 24 model ........................................................................................................................................................................page 36

Table 15 - Combustion specifications, KC/KR/KRB 28 model ........................................................................................................................................................................page 36

Table 16 - Combustion specifications, KC/KR/KRB 32 model ........................................................................................................................................................................page 36

Table 17 - Boiler re-ignition temperatures ...........................................................................................................................................................................................................page 46

Table 18 - Limits to be set for TSP parameters and default values based on boiler type (TSP0) ......................................................................................................page 47

Table 19 - General table of TSP parameters .........................................................................................................................................................................................................page 49

Table 20 - Relationship between "Temperature and Nominal resistance" for temperature probes ...............................................................................................page 62

Table 21 - CO

values ....................................................................................................................................................................................................................................................page 65

Table 22 - P0-P4-P4-P5-P6-P7-P8 parameter setting ........................................................................................................................................................................................page 65