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55

fig. 21

3.6.

Wiring diagrams

3.6.1

KRB model

a

KeY
0SCHeMoD27: boiler board
0SCHeINT00: interface board
DK: pressure transducer
SS: DHW OUT NTC probe 10 kOhm at 25 °C B=3435
S3S: DHW IN NTC probe 10 kOhm at 25 °C B=3435
SRT: return NTC probe 10 kOhm at 25 °C B=3435
SR1-SR2: heating NTC probe 10 kOhm at 25 °C
B=3435
SF: flue NTC probe 10 kOhm at 25 °C B=3435

TF: flue gas thermostat
VG: gas valve
P: modulating circulator boiler pump
MDV: electric deviating valve
e: ignition/flame detection electrode
V: brushless fan
aCC1: ignition transformer
Cn_a-Cn_m: signal/load connectors
X2-X7: ground connectors
0CRemoTo04: opentherm Fondital Remote Control
0SondaeS01: external probe to be used with
0CREMOTO04 Remote Control (optional)

Panel eleCTRICal ConneCTIonS
1-2: ambient thermostat contact 2
3-4: ambient thermostat contact 1 or opentherm
5-6: external probe
7-8: boiler water cylinder probe
9-10: boiler solar probe
11-12: solar collector probe
13-14: ambient probe 1
15-16: ambient probe 2
17: serial input GND
18: serial input 485A
19: serial input 485B
20: serial input +5V
21: relay neutral
22: ‘normally closed’ phase relay (NC)
23: ‘normally open’ phase relay (NA)

X7 X6 X5 X4 X3 X2

TA

TA2

OT o TA1

sonda

Ext

.

sonda Boll.

caldaia

sonda Boll.

solare

sonda Coll.

Solare

sonda

Amb1

sonda

Amb2

N

F

n.c.

F

n.a.

comunicazione

con esterno

Contatto TA1 o

Open-Therm

Contatto

TA2

Sonda 10KΩ a

25°C

β

3977

Sonda 10KΩ a

25°C

β

3435

Sonda

PT1000

Sonda

PT1000

Sonda 10K

Ω

a 25°C

β

3977

Sonda 10K a

25°C

β

3977

GND 485A 485B +5V

relè liberamente

programmabile co

φ

1

3 1 2

7

1

CN_E

CN_H

CN_A

ACC1

CN_I

CN_M

CN_L

CN_J

CN_D

CN_B

CN_C

JP1

X14

bn

bn

wh

wh

pk

pk

bu

bu

bk

bk

pk

pk

or

or

rd

rd

wh

wh

wh

or

bn

bn

rd

rd

rd

bu

pk

bk

bn

rd

1

2

3

4

rd

bu

pk

bk

bn

IN
GND
OUT

bn

bu

X4

X3

X5

SCHEMA ELETTRICO DI

CONNESSIONE

1

2

3

4

CN_L

CN_I

CN_M

CN_A

CN_H

CN_E

CN_C

CN_D

230V a.c

Conn_F

Conn_E

Conn_C

Conn_B

Conn_A

Conn_D

CN_J

rd

pk wh bk

rd

pk

wh

bk

or

pk

wh

bk

bn

bn

bu

bu

0SCHEMOD27

RETRO 0SCHEINT00

QUATOUCH00

1

1

Resistenza

10KΩ

1

4

1

5

X2

bu

bn

ygn

bu

bn

bk

P

VG

MDV

N bu

Risc. bk

Sanit. bn

V

DK

SF SR1 SR2

TF

E

SRT

bu bn bk

bu

bn

bu

bn

bn

bu

ygn

ygn

ygn

or

pk

wh

bk

bn

bn

bu

bu

bn bn wh wh pk pk rd rd bu bu bu bu

pwm

Connection wiring diagram

BACK

0SCHEINT00

QUATOUCH00

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Содержание ITACA KC 12

Страница 1: ...IST 03 C 541 01 Installation use and maintenance ITACA KC 12 24 28 32 KR 12 24 28 32 KRB 12 24 28 32 EN...

Страница 2: ...uthorised company in full compliance with the prevailing standards the installing company is required by law to issue a declaration of conformity with the current Standards concerning the performed in...

Страница 3: ...so keep them out of their reach In the event of failure and or faulty functioning switch off the boiler Do not attempt to make repairs contact qualified technicians Original parts must be used for al...

Страница 4: ...comes on 6 To set the DHW water temperature press DHW buttons D fig 1 Set temperature as required 7 To set the heating water temperature press heating water buttons E fig 1 Set temperature as require...

Страница 5: ...e 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 Instal...

Страница 6: ...age 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 circulat...

Страница 7: ...nd parameter setting F Alarm reset and back to the starting page during parameter selection G DHW comfort function enabling and confirm key H Operating status selection To gain access to the interface...

Страница 8: ...n Manual mode setting 12 Display of zone 1 heating programme Edit zone 1 heating programme 13 Current day of the week Edit day of the week 14 Display of zone 2 heating programme Edit zone 2 heating pr...

Страница 9: ...DHW function active DHW temperature displayed Only for KC models Boiler switch in WINTER or CH ONLY mode CH function active The flow water temperature is displayed Boiler switch in SUMMER or WINTER mo...

Страница 10: ...gh system pressure External cylinder probe KR or KRB or domestic cold water inlet probe KC failure Return probe failure Solar collector probe failure SCS Solar valve probe failure SVS Solar water cyli...

Страница 11: ...xternal probe error with connected ambient probe Communication error between main board and interface board Safety system hardware malfunction Incompatibility between boiler main board and interface b...

Страница 12: ...2 Max number of reset attempts from touch screen reached Max number of reset attempts from Remote Control reached optional if connected Table 2 BOILER STATUS LCD indications in the event of malfunctio...

Страница 13: ...iler is in standard DHW operating mode for an instant boiler For CH only KRB models the comfort function is not available The comfort icon on the display is always OFF If COMFORT function is enabled i...

Страница 14: ...SUMMER WINTER CH ONLY OFF modes are enabled in sequence At this stage all buttons are enabled When the SUMMER mode is enabled only the DHW production function is active When the CH ONLY mode is enable...

Страница 15: ...in which the icon is flashing only the buttons to adjust the set point temperature of the DHW are enabled Press the CH button E fig 1 to select the flow water set point During selection icon CH 5 fig...

Страница 16: ...Flashing values can be edited by pressing CH buttons Press ok to confirm the edited value and shift to next parameter press reset to quit the function and go back to starting page Press set to access...

Страница 17: ...y temperature is identified by the symbol while night temperature by the symbol The day temperature is active when bars are on while night temperature is active when bars are off 1 Press set twice to...

Страница 18: ...mme setting mode 2 Press ok to confirm manual programming activation Press reset to go back to the starting page namely to quit the function 1 9 Automatic programme setting The selection of automatic...

Страница 19: ...ide the different times of the day 4 To program other days of the week or to program zone 2 and water cylinder press reset You will go back to the starting page Whatever part of the programme can be q...

Страница 20: ...ler will be displayed If an external probe is installed the flow temperature boiler calculated through the curves on fig 1 will be displayed P42 Domestic hot water temperature displaying for KC models...

Страница 21: ...d 15 seconds after no key is touched all the keys but the one around the LCD will be disabled 1 13 Boiler reset The display shows the failure based on the corresponding error code see paragraph 1 2 So...

Страница 22: ...the following one used to prevent boiler frequent turning on and off ranges between 0 and 10 minutes default value 4 min and can be edited with the P11 parameter Should water temperature in the system...

Страница 23: ...function ends when the probe ambient temperature reading reaches 6 C 1 14 5 2 Flow anti freeze function When the heating water temperature sensor detects a water temperature of 5 C the boiler switche...

Страница 24: ...ing from those required by the managing electronics may affect boiler and external probe operation 1 14 8 Operation with optional Remote Control Boiler interface includes all the possible functions of...

Страница 25: ...of 1 1 3 bar turn cock clockwise to close it model KC or for models KR and KRB close the cock on the cold water supply pipe If the boiler still fails to operate contact a Service Centre or a qualifie...

Страница 26: ...STEM PRESSURE ABOVE 0 4 BAR When the reset button is pressed boiler shuts down and display goes back to standard screen SYSTEM PRESSURE BELOW 0 4 BAR Press the reset button to re activate system autom...

Страница 27: ...settings on the touch screen and ignore the Remote Control settings Contact a Service Centre or a qualified service engineer to carry out the maintenance The Remote Control can indicate faults or shut...

Страница 28: ...4 14 l min KC 28 and 16 l min KC 32 User interface Touch interface with built in LCD to display and control boiler operating condition OFF RESET WINTER SUMMER and ANTI FREEZE CH water temperature regu...

Страница 29: ...0 31 100 124 39 63 92 190 420 750 315 fig 3 F Cold water inlet G Gas inlet SI Trap inspection cap M CH system flow C Hot water outlet R CH system return RC Filler cock RS Discharge cock KC MODEL View...

Страница 30: ...ater inlet G Gas inlet SI Trap inspection cap M CH system flow R CH system return RS Discharge cock KR MODEL 76 60 62 67 82 73 121 23 10 31 100 124 39 63 92 190 420 750 315 View from bottom View from...

Страница 31: ...92 190 420 750 315 fig 5 RB Secondary return from water cylinder G Gas inlet SI Trap inspection cap M CH system flow R CH system return RS Discharge cock MB Secondary flow to water cylinder KRB MODEL...

Страница 32: ...raccogli condensa 2 valvola gas modulante 3 doppio sensore di temperatura di mandata 4 5 ventilatore modulante 6 7 scambiatore primario condensante 8 9 disareatore 10 condotto aspirazione aria 11 cond...

Страница 33: ...ow fig 8 KRB model 8 M 7 6 5 4 3 2 1 21 9 10 11 12 13 14 16 19 22 1 sifone raccogli condensa 2 valvola gas modulante 3 doppio sensore di temperatura di mandata 4 5 ventilatore modulante 6 7 scambiator...

Страница 34: ...0 mbar for G20 and 37 mbar for G31 In case of different gas categories please contact the manufacturer KC 24 Fuel type CH max heat input kW CH heat output 80 60 C kW CH heat output 50 30 C kW DHW heat...

Страница 35: ...sumption at maximum CH output kg h 0 93 1 84 2 05 2 36 Maximum CH working temperature C 83 83 83 83 Maximum DHW working temperature KC C 62 62 62 62 Maximum DHW working temperature KR KRB external cyl...

Страница 36: ...rating according to 92 42 EC NOx emission class 5 Table 13 Combustion specifications model KC KR KRB 12 KC 28 KR 28 KRB 28 Max output Min output 30 load Casing heat loss with burner on 1 4 5 7 Casing...

Страница 37: ...ion 3 2 6 Air intake and flue gas venting system and relevant sub paragraphs check the wall for sturdiness avoiding weak areas do not install the boiler over appliances which may affect boiler operati...

Страница 38: ...38 76 60 62 67 82 73 155 24 23 9 760 12 80 80 100 80 190 92 80 290 173 147 132 14 0DIMACAR18 fig 9...

Страница 39: ...if necessary provide holes in the wall to allow air intake and or flue gas venting pipes to pass through it secure the supporting bracket to the wall using the blocks supplied with the boiler positio...

Страница 40: ...ed suitable for condensing boilers Flue gas venting pipes are to be installed tilted toward the boiler so that condensate runs toward the combustion chamber which is designed for condensate collection...

Страница 41: ...C83 Boiler intended to be connected to combustion air terminal and to a single flue gas terminal or collective chimney The chimney must be compliant with applicable legislation and standards The boile...

Страница 42: ...meters Maximum permissible length of 125 80 mm vertical coaxial pipes is 13 5 meters For each additional 1 meter of straight pipe maximum permissible length is to be reduced by 1 meter For each addit...

Страница 43: ...ng pipes is 91 meters combined length of air intake and flue gas venting pipe For each additional 1 meter of straight pipe maximum permissible length is to be reduced by 1 meter For each additional 90...

Страница 44: ...bol indicating that the parameter is being edited the broom the H letter indicating Hertz the speed set point value in Hz the fan current speed and the lit flame on symbol if burner is on As soon as t...

Страница 45: ...hard Water supplied by commonly marketed water softeners due to PH level induced in water may not be compatible with some components in the system CONDENSATE DRAIN Comply with condensate drain laws an...

Страница 46: ...correct operation of the Remote Control itself and of the boiler is not guaranteed if non original Remote Control units not supplied by the manufacturer are used To install the Remote Control refer t...

Страница 47: ...z 43 Hz 43 Hz P6 TSP6 Fan speed at ignition power and propagation 25 to 160 Hz 48 Hz 48 Hz 58 Hz 58 Hz 60 Hz 60 Hz 76 Hz 76 Hz P7 TSP7 Upper limit for maximum CH heat output 10 to 100 75 74 88 88 87 8...

Страница 48: ...esponding to parameter 1 and the outdoor temperature is 4 C the CH flow temperature will be 50 C 1 With installed external probe press CH buttons E fig 1 to set calculated ambient temperature As soon...

Страница 49: ...14 Setting of standard or solar DHW thermostats 0 1 0 0 normal 1 solar P15 TSP15 Anti water hammer delay settable 0 3 sec 0 P16 TSP16 Ambient thermostat reading delay OT 0 199 sec 0 P17 TSP17 Multifun...

Страница 50: ...fferential OFF 0 0 1 0 C 0 0 C only with connected ambient probe P55 SA2 ambient probe triggering differential ON 1 0 0 1 C 0 5 C only with connected ambient probe P56 SA2 Ambient probe correction ran...

Страница 51: ...ted P82 Zone 2 mixing valve forcing 0 2 0 0 standard function 1 force in opening 2 force in closing P84 Zone 3 pump relay forcing 0 1 0 0 standard function 1 relay excited P85 Zone 3 mixing valve forc...

Страница 52: ...re is to be followed while the system is cold Digital pressure gauge is used to read pressure inside the heating circuit 3 4 Starting up the boiler 3 4 1 Preliminary checks Before starting the boiler...

Страница 53: ...50 500 0 200 400 600 800 1000 1200 PWM 100 PWM 75 PWM 30 0 50 100 150 200 250 300 350 400 450 500 0 200 400 600 800 1000 1200 PWM 100 PWM 75 PWM 30 0 50 100 150 200 250 300 350 400 450 500 0 200 400 6...

Страница 54: ...0 200 250 300 350 400 450 500 0 200 400 600 800 1000 1200 PWM 100 PWM 75 PWM 30 0 50 100 150 200 250 300 350 400 450 500 0 200 400 600 800 1000 1200 PWM 100 PWM 75 PWM 30 0 50 100 150 200 250 300 350...

Страница 55: ...ut 485A 19 serial input 485B 20 serial input 5V 21 relay neutral 22 normally closed phase relay NC 23 normally open phase relay NA X7 X6 X5 X4 X3 X2 TA TA2 OT o TA1 sonda Ext sonda Boll caldaia sonda...

Страница 56: ...lar system with CH only boiler Parameter setting P03 P17 P18 3 2 1 SONDA BOLLITORE SOLARE SONDA BOLLITORE CALDAIA ITACA KRB 12 24 SONDA ESTERNA MORSETTI 5 6 MORSETTI 3 4 TERMOSTATO AMBIENTE RETE IDRIC...

Страница 57: ...trode V brushless fan ACC1 ignition transformer CN_A CN_M signal load connectors X2 X7 ground connectors 0CREMOTO04 opentherm Fondital Remote Control 0SONDAES01 external probe to be used with 0CREMOTO...

Страница 58: ...ct TA1 or OpenTherm Probe 10K at 25 C 3977 Probe PT1000 Probe PT1000 Ambient probe 2 Ambient probe 1 Boiler water cylinder probe External probe Connect OT or TA1 Relay which can be freely programmed c...

Страница 59: ...cylinder cooling function This function consists in cooling water cylinder down to the temperature value set by the user by transferring excess heat from the water cylinder to the solar collector With...

Страница 60: ...g diagram fig 27 AMBIENT THERMOSTAT EXTERNAL PROBE TERMINALS 5 6 TERMINALS 21 22 23 SOLAR DEVIATING VALVE TERMINALS 3 4 TERMINALS 9 10 DOMESTIC WATER SYSTEM BOILER SOLAR PROBE X neutral Y to boiler Z...

Страница 61: ...parameter P17 TSP17 Relay with Remote Control and TA2 fig 28 Relay with interface programming and TA2 fig 29 Relay with remote request P17 1 fig 30 Relay with request P17 3 fig 31 Remote Control sole...

Страница 62: ...6539 15271 14113 13054 20 12084 11196 10382 9634 8948 30 8317 7736 7202 6709 6254 40 5835 5448 5090 4758 4452 50 4168 3904 3660 3433 3222 60 3026 2844 2674 2516 2369 70 2232 2104 1984 1872 1767 80 167...

Страница 63: ...h the socket head screws making sure to insert the O ring between mixer and fan fig 35 Reconnect boiler to electric power supply and open the gas cock Access the programming page to set the parameters...

Страница 64: ...set the P0 P4 P5 P6 P7 P8 parameters based on the power and on the gas as specified in tab 20 Set the flue CO2 rate by turning the ratio adjuster B fig 37 and ensure that reading falls within the lim...

Страница 65: ...s 9 0 9 3 24 kW Propane 10 28 kW Natural gas 9 0 9 3 28 kW Propane 10 10 3 32 kW Natural gas 9 0 9 3 32 kW Propane 10 Table 21 CO2 rates DIAMETER OF NOZZLES DIAPHRAGMS mm Natural gas Propane 12 kW 3 0...

Страница 66: ...in the system pipes are open the mains gas type is correct for the boiler calibration convert the boiler to the available gas when necessary see section no 3 7 this operation must only be performed by...

Страница 67: ...condition and seal integrity of the flue gas venting pipes check the state of combustion fan check integrity of safety devices of the boiler in general check for water leaks and oxidised areas on the...

Страница 68: ...e thermostat triggering Poor flue draught Check the chimney and ambient air suction openings Flue vent air intake duct is obstructed Check for any duct obstruction and eliminate Flue gas thermostat is...

Страница 69: ...onnect it Zone solar boards are disconnected Reconnect them Interface display and or zone solar boards are faulty Replace them E42 Solar system setting error Wrong boiler board or solar board setting...

Страница 70: ...probe on heat exchanger is faulty or damaged Replace it E98 The max number of resets from the boiler touch screen has been reached The user has reached the max number of resettable errors from boiler...

Страница 71: ...71...

Страница 72: ...x 39 0365 878 576 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...

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