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Nova Florida Pictor Dual, Installation, Use And Maintenance Manual

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Nova Florida Pictor Dual Installation, Use And Maintenance Manual Download Page 26

3.5 Wiring diagrams

3.5.1 Connection layout

Relation between temperature (°C) and nominal resistance (Ohm) of CH probe SR and DHW probe SS.

T (°C)

0

2

4

6

8

0

27203

24979

22959

21122

19451

10

17928

16539

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

1670

1578

1492

1412

1336

90

1266

1199

1137

1079

1023

pic. 21

26

F1 BIT  

  Bi-thermal heat exchanger boiler

F2 PIA 

Mono-thermal heat exchanger boiler

F3 RIS  

  CH only boiler

F4 BOL     System boiler
F5 MIC  

  Micro-reservoir boiler

F6 MAC     “AQUA PREMIUM “ boiler
M3-M8-M9: Power supply connector, TA

   external probe

M16 :  

  Tele-metering connector

M2-M15 :    Boiler components connectors
E.RIV :  

  Detection electrode

E.ACC :     Ignition electrode
P :  

  Water pump

V :  

  Fan (TFS models only)

MVD :  

  Three-way valve motor

DK :  

  Low water pressure switch

SR :  

  CH probe (10 Ohm B = 3435)

SE :  

  External temperature probe (10 Ohm 

 

  B = 3977 - Option)

SS :  

  DHW probe (10 Ohm B = 3435

         

  three metre max. length)

TA :  

  Room thermostat (option)

CM1-CM2 :  Boiler type selection jumpers
FL :  

  Flow sensor

VG :  

  Gas valve

TL :  

  Limit thermostat

PV :  

  Fan pressure switch (TFS models only)

TF :  

  Flue leak detection thermostat 

 

  (TN model only)

B :  

  Probe-equipped external cylinder  

 

  

(remove 

R1)

B1 :  

  Bulb probe-equipped external water   

cylinder (remove P1)

TIMER :     DHW programmer (remove P1 when   

timer is installed)

P1 :  

  Timer priority jumper

R1 :  

  10k Ohm resistance

S :  

  Bulb probe 

TR.ACC :  Ignition transformer

Summary of Contents for Pictor Dual

Page 1: ...CTN 24 RTN 24 CTFS 24 RTFS 24 CTFS 28 RTFS 28 INSTALLATION USE AND MAINTENANCE GB IST 04 C 161 02 PICTOR DUAL ...

Page 2: ...one of our boilers Please read these instructions carefully in order to install operate and maintain this equipment properly Manufacturer recommends Customers to contact authorized qualified personnel only for any maintenance and repair operations 2 ...

Page 3: ...waste management sites Keep the packaging out of the reach of children as by its nature it may represent a hazard In the event of failure and or faulty fun ctioning switch off the boiler Do not attempt to make repairs contact quali fied technicians Manufacturer approved parts must be used for all repairs to the boiler Non observance of the above requi rements may affect the safety of the boiler an...

Page 4: ...ging Page 14 3 2 2 Choosing where to install the boiler Page 14 3 2 3 Positioning the boiler Page 14 3 2 4 Installing the boiler Page 14 3 2 5 Boiler room ventilation Page 16 3 2 6 Flue system Page 16 3 2 7 Air flue system ducts configuration Page 18 3 2 8 100 60 diameter coaxial duct air flue system Page 19 3 2 9 80 mm diametre split duct air flue system Page 20 3 2 10 Testing boiler efficiency P...

Page 5: ... 7 Indication light red When this light is on and fixed this indicates that the temperature of the water in the heating system is between 76 and 85 C When this light is flashing it indicates that the CH temperature is above 90 C 8 Indication light green When this light is on and fixed this indicates that the boiler is operating in central heating mode When this light is flashing this indicates tha...

Page 6: ...OFF modes Please Note The anti freezing function only protects the boiler and not the heating system The heating system must be pro tected by using a room thermo stat although this is disabled when the selector is set to the anti freezing mode Therefore if you want to protect both the boiler and the system select the winter mode with selector 9 When selector 9 is set on the OFF position anti freez...

Page 7: ... proceed as follows Turn the filling tap counter clockwise to let water into the boiler and keep it opened until pressure gauge no 12 in pic 1 shows that a pressure of 0 8 1 bar is reached WARNING Once the loading procedure is com pleted properly close loading tap Should the tap not be properly clo sed as pressure increases boiler CH safety valve may open and water flow out NOTE Should boiler freq...

Page 8: ...HW and CH temperature probes Safety limit thermostat IP44 electrically protected con trol panel Modulating electronic safety board Electronic ignition and external transformer Flue thermostat TN models Flue pressure switch TFS models Gas valve User interface External probe ready electronics Reset stand by summer winter summer and anti freezing function switch DHW temperature switch for C models or...

Page 9: ...at 8 Plate heat exchanger 9 Extractor hood 10 Flue exhaustion safety thermostat 11 De areator 12 Flame sensing electrode 13 Expansion vessel 14 Pump 15 Filling tap 16 Water pressure switch 17 Safety valve 18 DHW flow limiting device 10 litre per minute 19 Flow switch 20 Water mains inlet filter G Gas intake M CH flow C DHW flow F Water mains intake R CH return 2 3 4 5 7 8 1 10 9 6 11 13 14 16 15 1...

Page 10: ...itre per minute 23 DHW switch 24 Water mains inlet filter 25 Plate heat exchanger 26 Adjustable by pass 27 Three way valve G Gas intake M CH flow C DHW flow F Water mains intake R CH return RTN 24 pic 7 1 Expansion vessel 2 Gas valve 3 Burner nozzles 4 Expansion vessel loading valve 5 Ignition electrode 6 Heat exchanger 7 Flue hood 8 Flue exhaustion safety thermostat 9 Water pressure switch 10 Fla...

Page 11: ...lue pressure check 10 Flue system coaxial ducts 11 Flue pressure micro switch 12 Flue pressure safety switch 13 Flue pressure check 14 Water pressure switch 15 De aerator 16 Safety thermostat 17 Flame sensing electrode 18 CH temperature probe 19 Pump 20 Water pressure safety valve M CH flow G Gas intake R CH return F Water mains intake 11 2 5 18 3 16 6 7 8 9 11 12 10 13 4 1 17 15 19 14 20 ...

Page 12: ...minute Hot water supply T 30 C 11 4 litre per minute Hot water supply T 25 C 13 6 litre per minute mixed water to the tap Methane Gas G 20 25 5 23 77 9 9 20 1 25 2 5 13 5 Buthane Gas G 30 25 5 23 77 9 9 29 0 77 5 3 27 0 Propane Gas G 31 25 5 23 77 9 9 37 0 77 6 6 35 5 CTFS 24 RTFS 24 n 2 chart Function Max heat output kW Min heat output kW Heat Input kW Nozzle diametre mm min max Gas mains pressur...

Page 13: ...4 max heat output min heat output 30 heat output Housing heat loss Flue system heat loss with burner on Flue system mass capacity Flue temp air temp CO2 Boiler efficiency rate 0 23 0 23 6 57 9 27 12 9 14 98 60 7 7 2 9 93 2 90 5 90 2 g s C CTN 24 RTN 24 max heat output min heat output 30 heat output Housing heat loss Flue system heat loss with burner on Flue system mass capacity Flue temp air temp ...

Page 14: ... The TEMPLATE is made of heavy duty paper and is to be affixed to the wall where the boiler is to be mounted It provides all the indica tions required to drill the holes for fixing the boiler to the wall which is done using two screws and wall plugs The lower part of the TEMPLATE shows where to mark the exact point at which the couplings must be positioned for boiler connec tion to the gas supply ...

Page 15: ... C F R M G L pic 9 M CH flow 3 4 18 138 C DHW flow 1 2 14 177 G Gas intake 1 2 18 138 F Water mains intake 1 2 14 177 R CH return 3 4 18 138 Ø coupling Ø copper pipe length pic 9 BOILER WALL HANGING TEMPLATE ...

Page 16: ...an twice its diametre before joining the chimney Direct emission into the atmo sphere Natural draught boilers can discharge flue gas directly into the atmosphere by means of a duct going through the outside walls of the building and ending with a terminal The flue gas exhaustion system must comply with the following requirements the horizontal part inside the bui lding must be as short as possible...

Page 17: ...50 750 330 Ø 130 8 131 232 7 mm 218 FLUE SYSTEM CONNECTION DIMENSIONS FOR NATURAL DRAUGHT BOILER pic 11 2 Ø min 2 Ø min 1 5 m min 1 5 m min Ø Ø 2 Ø 2 Ø 1 m max 1 m max 3 min slope 3 min slope 3 Ø 3 Ø pic 10 ...

Page 18: ...area having 500 mm sides C32 This boiler is intended for connection to vertical outlet and intake ducts connected to the outside by means of coaxial or split ducts The distance between air intake duct and flue gas flue duct is to be a minimum of 250 mm and both terminals must be positioned within a squared area having 500 mm sides C42 This boiler is intended for connection to a collective chimney ...

Page 19: ...pipes is 4 metre including the terminal For each additional elbow maximum permissible length must be reduced by 1 metre Choosing the applicable diaphragm supplied with the boi ler pic 12 RTFS 24 and CTFS 24 219 330 100 97 750 450 7 mm COAXIAL DUCT FLUE GAS DICHARGE SYSTEM CONFIGURATION pic 13 FROM 0 5 m TO 4 m pic 12 DIAFRAMMA TAPPO DI CHIUSURA SEALING CAP GUARNIZIONE IN NEOPRENE Pipe length m Flu...

Page 20: ...ake duct is equal to 1 m linear length Each narrow radius 90 elbow R D installed on the air intake duct is equal to 1 5 m linear length Load loss of the air intake terminal is not to be taken into consideration The standard air deflector MUST be installed Flue gas system Each wide radius 90 elbow R D installed on the flue duct is equal to 1 5 m linear length Each narrow radius 90 elbow R D install...

Page 21: ...imum lenght of the air intake pipe is 1 mter Each wide radius 90 bend R D installed on the air intake duct is equal to 1 m linear length Each narrow radius 90 bend R D installed on the air intake duct is equal to 1 5 m linear length Load loss of the air intake terminal is not to be taken into consideration Air intake terminal provided with the anti pulse device contained in the split base kit must...

Page 22: ...h two opposite outside walls Example N 2 pic 16 Primary air intake from outside wall and flue gas discharge through the roof Example N 3 pic 17 Primaryi air intake from outside wall and flue gas discharge from the same outside wall 22 500 ESEMPIO N 1 ESEMPIO N 2 H min 150 mm SPLIT DUCTS SYSTEM SAMPLE pic 16 SPLIT DUCTS SYSTEM SAMPLE 135 250 min 45 500 mm 500 mm pic 17 330 450 750 219 134 Ø 80 85 1...

Page 23: ...ny position other than WINTER 3 2 10 2 Checking combustion performance Coaxial duct system In order to verify combustion perfor mance the following measurements must be implemented measure air intake through hole 2 see pic 19 section A measure flue gas temperature and CO2 through hole 1 see pic 19 section A Allow boiler to reach working tem perature before performing any measurement Split duct sys...

Page 24: ...d at 24 Vdc load The room thermostat wiring must be connected to M10 terminal shown in pic 21 after removing the jumper supplied as a standard fitting to the boiler The room thermostat wiring must NOT be grouped together with power mains supply cables 3 2 14 External temperature probe connection The boiler can be connected to an external temperature probe to adjust CH temperature in relation to ou...

Page 25: ...0 8 1 bar Restore proper value as needed and while the water in the system is cold Boiler pressure gauge indicates water pressure in the system WARNING After long boiler inactivity its pump may be stuck BEFORE STARTING UP THE BOILER MAKE SURE THAT THE PUMP IS OPERATIVE BY THE FOLLOWING PROCEDURE Unscrew the protective bolt loca ted in the centre front section of pump motor Put a screwdri ver into ...

Page 26: ...ler M3 M8 M9 Power supply connector TA external probe M16 Tele metering connector M2 M15 Boiler components connectors E RIV Detection electrode E ACC Ignition electrode P Water pump V Fan TFS models only MVD Three way valve motor DK Low water pressure switch SR CH probe 10 Ohm B 3435 SE External temperature probe 10 Ohm B 3977 Option SS DHW probe 10 Ohm B 3435 three metre max length TA Room thermo...

Page 27: ...c 25 to MAX by rotating it fully clockwise Select winter boiler operation Start boiler to chimney sweep mode see 3 2 10 1 Turn nut K external clockwise in order to increase nozzle pressure and vice versa pic 26 In LPG fueled boilers turn brass nut K fully clockwise B Min power adjustment Disconnect the electrical wiring to modulation coil M in pic 24 Turn the burner on and check MIN pressure accor...

Page 28: ... inside parts of boiler disconnect electrical power supply to the boiler Maintenance schedule Routine maintenance schedule must include the following che cks General integrity of the boiler Boiler and network gas supply leakage Gas supply pressure to boiler Minimum and maximum gas pres sures to boiler nozzles Boiler ignition Boiler combustion parameters by analysis of flue this check to be perform...

Page 29: ...arge Check air flue gas ducts unclog or replace as needed Fan is faulty Replace it PCB is faulty Replace it Flue thermostat has shut boiler down CTN models Air flue system is clogged Check flue gas ehaust and air intake vent grilles in the boiler room Flue gas thermostat is faulty Replace it The boiler has shut down and red light no 3 is flashing Turn selector 9 to reset position in order to resum...

Page 30: ...30 ...

Page 31: ...31 ...

Page 32: ...anufacturer reserves the right to implement any necessary and or useful variation to products without modifying fundamental characteristics Fondital S p A Via Mocenigo 123 25078 VESTONE Brescia Italy Tel 39 0365 878 31 Fax 39 0365 596 257 e mail info fondital it www fondital it ...

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