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________________________________________________________________________________

AST 14 C 258/00

7.2 125/80 CO-AXIAL AIR/VENT DUCTS

Installation type: C13 - C33

Pipe maximum length*

TYPE OF

INSTALLATION

PIPING MATERIAL

KRB 12

KC-KRB 24

KC-KRB 28

Air

intake

Flue gas vent

L max

[m]

L max

[m]

L max

[m]

C13 – C33

aluminium polypropylene

13.5

14.5 13.5

* The first elbow from the boiler is not to be accounted for

Flue fitting load loss

Component

KCK-RB 12 - 24 - 28

[m]

Extension 1 m

1.0

Extension 0.5 m

0.5

90° elbow

1.0

45° elbow

0.5

Roof vent terminal

1.5

Wall terminal kit + 90° elbow

1.5

7.3 80/80 SPLIT AIR/VENT DUCTS

Pipe maximum length

Type of installation: C43 - C53 - C83*

TYPE OF

INSTALLATION

PIPING MATERIAL

KRB 12

KC-KRB 24

KC-KRB 28

Air

intake

Flue gas vent

L max

[m]

L max

[m]

L max

[m]

C43 – C53 – C83

aluminium polypropylene

152

* The minimum length of intake and discharge line must be one meter

Type of installation B23 - B53*

TYPE OF

INSTALLATION

PIPING MATERIAL

KRB 12

KC-KRB 24

KC-KRB 28

Air intake Flue gas vent

L max

Содержание NOVA FLORIDA DELFIS-ANTEA Condensing KC 24

Страница 1: ...condensing boilers GROUP Instantaneous type with forced draught MODELS Delfis Antea Condensing VERSIONS For indoor installation PART NO AST 14 C 258 00 ______________________________________________ 1...

Страница 2: ...3 5 Gas valve and fan unit 3 6 Flue gas venting system ___________________Page 16 SECTION 04 GAS SETTING AND TSP PARAMETERS 4 1 Gas Valve Setting 4 2 Chimney Sweep Function 4 3 Gas Conversion 4 4 TSP...

Страница 3: ...________________________________________________________________________________ 3 AST 14 C 258 00...

Страница 4: ...with DHW tank heater MAIN CHARACTERISTICS DELFIS ANTEA Condensing Line Tech KC 24 28 Condensing combined instantaneous boiler for indoor installation domestic hot water heating s ealed chamber forced...

Страница 5: ...________________________________________________________________________________ 5 AST 14 C 258 00...

Страница 6: ...________________________________________________________________________________ 6 AST 14 C 258 00 INSTALLATION TEMPLATE...

Страница 7: ...range C 35 57 Maximum DHW working temperature C 35 65 Total capacity of expansion vessel l 9 Maximum recommended system capacity l 200 Nominal electrical data Electric Power Supply Voltage Frequency V...

Страница 8: ...g heat loss with burner off 0 28 Casing heat loss with burner on 0 97 6 49 Flue system heat loss with burner on 2 62 2 09 Flue natural gas mass flow g s 12 43 1 33 Flue gas temp air temp C 61 33 CO2 v...

Страница 9: ...12 37 2 5 10 3 10 0 KC KRB 24 Heat capacity Thermal Power MIN MAX Supply pressure Nozzle diameter Flue gas MIN MAX kW kW mbar mm 0 1 Natural gas G20 23 7 2 7 22 9 60 80 C 3 2 24 9 30 50 C 3 0 27 4 DH...

Страница 10: ...MER Boiler produces domestic hot water only WINTER Boiler provides both central heating and domestic hot water CENTRAL HEATING ONLY Boiler provides central heating water only STANDBY OFF Boiler in sta...

Страница 11: ...mestic hot water temperature during the DHW function domestic hot water temperature setting boiler status boiler diagnosis e Central heating indicator This comes on when the boiler is in CH mode Flash...

Страница 12: ...and the burner power rate percentage are displayed Boiler in SUMMER or WINTER mode DHW function active with flame lit The hot domestic water temperature and the burner power rate percentage are displ...

Страница 13: ...to flow probe fault a Boiler shutdown due to DHW probe fault a Boiler shutdown due to flue gas probe fault a Boiler shutdown due to failure of the tank heater probe KRB External probe fault a Solar c...

Страница 14: ...tion r or f Shutdown due to heating fluid circulation malfunction r or f Shutdown due to heating fluid circulation malfunction r or f Shutdown due to heating fluid circulation malfunction r or f Shutd...

Страница 15: ...shutdowns see following table it is necessary to call the technical service It is necessary to contemporaneously press the three keys indicated below Then the wrench icon is displayed and this indica...

Страница 16: ...r cock 6 Return temperature sensor 25 Cold water flow switch with filter 7 Primary condensing exchanger 26 Secondary plate exchanger 9 Deaerator 27 DHW probe 10 Combustion air intake system 28 Automat...

Страница 17: ...ing fan 21 Discharge tap 6 Return temperature sensor 22 Low pressure switch 7 Primary condensing exchanger 23 Automatic bypass 9 De aerator 24 Motorised 3 way valve 10 Combustion air intake system 11...

Страница 18: ...r group of thermopolymers connecting the cold water inlet pipe to the rest of the hydraulic system The stainless steel plate exchanger consists of 12 plates for the 24 kW model and 14 plates for the 2...

Страница 19: ...e by pass ensures a minimum flow inside the primary exchanger It protects the primary condensing exchanger from overtemperatures due to the lack or a poor water flow COLD WATER D H W By pass pipe with...

Страница 20: ...elector to set the motor rotation speed and thus the head to the system The circulating pump is the same for both power rates what changes according to the primary exchanger is the residual head curve...

Страница 21: ...be drawn at t 30K PROTECTION FILTERS To prevent dirt from building up in the primary exchanger and consequent damages we recommend cleaning thoroughly the system before its commissioning Safeguarding...

Страница 22: ...e is available it will not be water volume but pressure to increase If pressure value exceeds safety valve triggering point this latter will open and discharge water from system This problem is preven...

Страница 23: ...oduced and kept in a stainless steel case where a diaphragm placed between the elements separates the combustion zone or flame side from the condensing one or flue gas side The heat exchanger has two...

Страница 24: ...ng so that the water temperature is higher when flowing into the combustion chamber This decreases the fuel consumption and avoid condensate formation that would drop onto and damage the burner After...

Страница 25: ...laced every two years upon maintenance and a flue gas and condensate sealing rope whereas a ceramic fibre insulating material prevents it from overheating The burner outer case features small round an...

Страница 26: ...alve connection pipe according to the air flow passing through it When the gas valve is powered on the outlet there will be a negative pressure and the valve will regulate the gas flow rate according...

Страница 27: ...0 Model type 0 5 1 3 2 4 P4 Fan speed at maximum output DHW 187 Hz 181 Hz 199 Hz 192 Hz 201 Hz 198 Hz P5 Fan speed at minimum output DHW and heating 39 Hz 39 Hz 42 Hz 42 Hz 40 Hz 40 Hz P6 Fan speed at...

Страница 28: ...0 VAC 50 Hz SV1 operating current 40 mA SV2 operating current 12 mA SV1 supply pin 3 4 SV2 supply pin 3 1 Max working pressure 60 mbar Working temperature 10 60 C Coils Safety coil interchangeability...

Страница 29: ...ple when fan is activated a vacuum develops inside the combustion chamber and valve thanks to this pressure point decreases nozzle pressure so as to balance any exceeding gas supply due to vacuum At t...

Страница 30: ...air and gas quantity before conveying them to the burner through the suitable pipe The mixer is connected to the fan intake opening and features a mechanism able to increase or decrease the air and g...

Страница 31: ...and conveys the condensate produced by the primary exchanger into the sewer its shape prevents the flue gas produced by the combustion from directly entering in contact with the discharge system The...

Страница 32: ...this page gradually press the DHW key to operate the boiler at the maximum output until the display shows the exact number of fan Hz at the minimum speed 39 Hz 12 kW 42 Hz 24 kW 40 Hz 28 kW turn the...

Страница 33: ...s it is possible to change the fan speed from P5 minimum speed to P4 maximum speed In this case the display shows the wrench symbol parameter editing indicator as well as the Hertz H number correspond...

Страница 34: ...er nozzles using a 6mm Allen wrench Mount the new nozzles and screw them in but do not overtighten IMPORTANT If the nozzle jiggles in the its seat it means the thread is damaged so the whole mixer nee...

Страница 35: ...s only see paragraph Parameter list such as the external flow DHW temperature etc To quit the displaying function simply press reset Display will anyway go back to the starting screen 30 seconds after...

Страница 36: ...al gas LPG 40 28 kW natural gas LPG P6 Fan speed at ignition power 25 60 Hz 58 48 12 kW natural gas LPG 58 24 kW natural gas LPG 60 28 kW natural gas LPG P7 Max heating output fan speed 10 00 88 75 12...

Страница 37: ...unction relay not available in this version P26 Enable tank heater cooling 0 1 0 0 disabled 1 enabled P27 Heating timer reset temperature 20 78 C P10 1 low temperature 20 C P10 1 high temperature 40 C...

Страница 38: ...Display of tank heater or solar valve temperature from solar board As above but only visible with a additional board connected P50 Display of boiler type X Y Z X P0 value Y P2 value Z future applicati...

Страница 39: ...ed flow set point P74 Mixing valve opening time 0 to 300 s 140 s It can be set with a zone board connected P76 Heat discharge via solar board 0 1 0 0 disabled 1 enabled System check P80 Multifunction...

Страница 40: ...ltifunction relay Preset for control unit for different zones Temperature probe wholeness check Brushless fan wholeness check Flow freeze protection function Plate DHW freeze protection function Anti...

Страница 41: ...er speed than the maximum rotation speed 700 rpm is detected for 1 5 seconds TW room pre cleaning waiting time If the fan rpm number is within the tolerance 300 rpm the igniter and the gas valve are p...

Страница 42: ...diagram Ventilatore di combustione ON OFF Elettrovalvola Pressostato aria Termostato fumi Accensione Rilevazione Blocco Tempo verifica pressostato aria o termostato fumi TW tempo di attesa Accensione...

Страница 43: ...reaching and maintaining the DHW temperature pre selected on the boiler or through the remote control During the first 20 seconds when the DHW is being drawn to avoid boiler continuous switch on off t...

Страница 44: ...temperature is below 70 C automatic flame control can be disabled to start the burner ignition sequence At the end of this sequence the power to the burner corresponds to the ignition power P6 Subsequ...

Страница 45: ...USTABLE HEATING MAXIMUM OUTPUT During the operation in heating mode the maximum output provided to the burner is equal to the one set by means of parameter P7 that corresponds to a percentage of the b...

Страница 46: ...state when there is a DHW request or the boiler is switched to OFF or DHW ONLY mode with P17 3 multifunction relay in TA2 request the relay is energised and returns to the off state when there is a D...

Страница 47: ...The thermoregulation curve is selected by means of parameter P10 value from 0 to 3 whereas the fictitious room temperature is selected with the heating keys The board independently acknowledges the p...

Страница 48: ...select parameter P10 Press OK to confirm that parameter value has to be edited the wrench symbol indicates that parameter value can be edited using keys heating For high temperature systems we recomm...

Страница 49: ...matic formula in both cases it is necessary to check the temperature variations to correct and better chose the proper curve In the first case take a real value of external temperature as reference an...

Страница 50: ...ernal temperature the curve is correct If the room temperature is constant but different from the desired value it is necessary to translate the curve This occurs automatically by pressing the heating...

Страница 51: ...____________ 51 AST 14 C 258 00 P17 1 Remote reference Upon each request by the remote control or TA1 the relay is excited Electric connections P17 3 Ambient thermostat reference Upon each request by...

Страница 52: ...nerated by a possible contact connected on opentherm When the connection is active remote control has a priority over boiler switch and it totally enables disables DHW and CH functions The remote cont...

Страница 53: ...difficulty in transmitting data between the boards due to very long connection lines or electromagnetic interferences This jumper must only be left on the last board in cascade all the others includi...

Страница 54: ...3 and 4 are activated directly by the ambient thermostat connected to the relevant zone board Zones 3 and 4 cannot support control by the safety flow line thermostat TSM which must be mounted in seri...

Страница 55: ...ow value without an external probe according to the selected range Parameter P32 displays the calculated flow temperature and parameter P31 the current value read by the boiler probe Zone 2 Parameter...

Страница 56: ...s is equal to the value calculated by the thermoregulation plus the value of parameter P75 default 5 C to compensate for any unbalance in systems with uneven flow rates When DHW is withdrawn any heat...

Страница 57: ...ant In the event of a failure of the SVS solar valve probe the diverting valve activates in the solar mode only and tank heater takes place following the same logic taking into consideration the SBS s...

Страница 58: ...set point value by dissipating any excessive heat in the tank heater on the solar collector This only occurs if the solar tank heater has exceeded the set point temperature following activation of th...

Страница 59: ...diverting valve VM The system layout is shown below Tank heater filling function pump ON The tank heater temperature is set via parameter P19 to a value between 10 and 90 C default 60 C The PS solar...

Страница 60: ...nerate high thermal stress For this reason the PS solar pump reactivates with the VM valve on tank heater filling according to following logic Tscs P22 10 C and Tsbc 95 C and stops when one of the fol...

Страница 61: ...ector This only occurs when the solar tank heater exceeds the set point temperature following activation of the heat dissipation function If remote control is not connected the tank heater cooling fun...

Страница 62: ...DISSIPATION HEAT DISCHARGE P22 10 C SCS P22 Psol OFF VM in tank heater position END SBC 95 C HEAT DISSIPATION VM in tank heater position Psol ON SCS P22 12 C SBC 95 C SCS P22 P76 1 HEAT DISCHARGE VM i...

Страница 63: ...t flow probe operating range 5 C to 120 C Correct solar probe operating range 40 C to 290 C Mixing valve deactivation range due to set point reached Set 1 5 C Set 2 C Mixing valve full opening timer F...

Страница 64: ...only if before the fault there was a request during DHW or anti freeze operation With P17 1 and P17 3 multifunction relay the relay remains energised until the fault is removed if there was a request...

Страница 65: ...ures Probe calibration 1k Ohm for 0 C Temperature C Resistance Temperature C Resistance 20 922 60 1232 10 961 70 1270 0 1000 80 1309 10 1039 90 1347 20 1078 100 1385 30 1118 110 1422 40 1155 120 1460...

Страница 66: ...has been disabled if it corresponds to 24 hours the pump and valve activate for 30 sec During the pump anti shutdown function the burner remains off and the timer resets at each activation of the pump...

Страница 67: ...the boiler pump activates and the three way valve switches to the heating position With P17 equal to 1 or 3 the multifunction relay is also energised If flame control shuts down and the burner cannot...

Страница 68: ...ration on heating or DHW mode has priority and causes the function in progress to terminate The anti freeze function is active with the boiler regardless of the operating mode If the flame control shu...

Страница 69: ...th the gas valve operator and is directly managed by the automatic flame control When the contact is open the gas valve power supply is immediately interrupted and if it remains open for a time TW TS...

Страница 70: ...fault Warning Permanent shutdowns can not be reset by the user but only by the technical service by pressing contemporaneously the three function keys for at least 10 sec Double flow probe E02 shutdo...

Страница 71: ...probe error differential value 0 C As soon as the calculated T is within the specified range the burner receives the ignition consensus If this does not happen within 60 seconds the check system forc...

Страница 72: ...ctivated during the plate DHW or water heater modes Following is an overview of the different situations Power Type of request Limit water flow rate Burner ON time Burner OFF time Error kW l h min min...

Страница 73: ...D Spare part number 6SCHEMOD30 Board characteristics Operating voltage 170 Vac to 300 Vac Power supply frequency 45 66 Hz Protection class IP00 Protection fuse 5x20 2AF Ionisation current 1 2 A Flame...

Страница 74: ...k of the control panel Connections reference 1 2 room thermostat 2 3 4 room thermostat 1 or remote control L 30m 5 6 outside probe 10K Ohm at 25 C B3977 L 100m 7 8 boiler water tank probe SBC for KRB...

Страница 75: ...round connectors SM2 NTC heating probe 2 10K Ohm MOD gas valve modulation coil Connections to be made by the installer ON OUTER TERMINAL BOX TA pins 1 2 ambient thermostat clean contact free from pote...

Страница 76: ...rainage Should the above procedure not be possible it is necessary to install in condensate stagnation areas devices designed for condensate collection and conveying to the condensate drain system 7 1...

Страница 77: ...______________________________________________________________________________ 77 AST 14 C 258 00 WARNING Maximum allowed length 0 75 metres Dimensions for connection of flue gas duct to co axial duct...

Страница 78: ...tting load loss Component KCK RB 12 24 28 m Extension 1 m 1 0 Extension 0 5 m 0 5 90 elbow 1 0 45 elbow 0 5 Roof vent terminal 1 5 Wall terminal kit 90 elbow 1 5 7 3 80 80 SPLIT AIR VENT DUCTS Pipe ma...

Страница 79: ...le Part Vent m Intake m 24 kW 28 kW 24 kW 28 kW Wall vent terminal 5 5 5 1 m extension 1 1 0 5 m extension 0 5 0 5 90 elbow 1 1 5 1 1 5 45 elbow 0 5 1 0 5 1 80 mm tee with condensate discharge 1 80 mm...

Страница 80: ...AL KRB 12 KC KRB 24 KC KRB 28 Air intake Vent Flue gas L max m L max m L max m B23 B53 C63 polypropylene 39 23 23 The minimum length of discharge line must be one meter 60 duct load loss table Part Ve...

Страница 81: ...____________________________________________ _____________________________________________________ _____________________________________________________ _______________________________________________...

Страница 82: ...erify correct neutral and phase connection sequence Detection electrode cable interrupted Re connect or replace cable Flame detection electrode is faulty Replace the electrode Electronic board does no...

Страница 83: ...en the two probes there is a temperature difference higher than 8 C Check the not correctly set probe and replace it Boiler shutdown picture flashes DHW probe is not working Disconnected or short circ...

Страница 84: ...onnect the probe or replace it if necessary The probe detects a value outside the permitted range Check the probe is the PT1000 type Boiler shutdown message flashing Failure on the solar tank heater p...

Страница 85: ...heck connections Fan is faulty Replace it Boiler shutdown message flashing No communication between main board and additional boards The main board cannot find all the additional boards or it finds mo...

Страница 86: ...lty or clogged by pass Check the by pass Too low system pressure Restore the pressure Boiler shutdown picture flashes Flow maximum threshold exceeded Air inside the boiler Bleed the boiler by opening...

Страница 87: ...ary exchanger clogging Clean or replace the primary exchanger Flue gas side clogging of primary exchanger and flue gas duct Check for obstructions inside the flue gas duct or clean the primary exchang...

Страница 88: ...FONDITAL GROUP Delfis Antea Condensing Technic Manual Customer Service Department 1st edition February 2013 AST 14 C 258 00...

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