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MAINTENANCE AND

SERVICE GUIDE

Fanned Flue Condensing

Combination Boiler 

Heating and Storage Domestic Hot

Water with TSS

®

Dimensions

Flue types:
C 13: - C 33 - C 53

C

54 54 54 54

J K L M N

I

88

J K

L

M N

232

235

32

Safety valve
center line

All dimensions in mm

Outer case dimensions : 
- Width :

440 (minimum space required 450)

- Height : 

850

- Depth : 

24 kw : 380

30 kW : 405

212

360

67

737

850

50

I

Safety valve outlet

Heating flow
K  D.H.W. flow
Gas supply
Cold water inlet
N   Heating return

24 kW : 380
30 kW : 405

Technical data

Natural gas G20

Gas rate C.H. max .................. 2.64 m

3

/h

3.01 m

3

/h

Gas rate D.H.W. max .............. 2.64 m

3

/h

3.01 m

3

/h

Gas rate C.H. & D.H.W. min ... 0.87 m

3

/h

1 m

3

/h

Gas valve restrictor diameter ..

without

without

Propane L.P.G G31

Gas rate C.H. max. ................. 1.94 kg/h

2.21 kg/h

Gas rate D.H.W. max. ............. 1.94 kg/h

2.21 kg/h

Gas rate C.H. & D.H.W. min ... 0.64 kg/h

0.73 kg/h

Gas valve restrictor diameter .. 4.40 mm

4.8 mm

24 kW

30 kW

24 kW

30 kW

Heat gross input C.H. max ............................

9.2-27.8 kW 

10.4-31.6 kW

Heat gross input D.H.W. max........................

9.2-27.8 kW 

10.4-31.6 kW

Heat output C.H. 50°/30° max.......................

9-26 kW 

10-30 kW

Heat output C.H. 80°/60° max.......................

8-24 kW 

9-28 kW

Heat output DHW maxi .................................

8-24 kW 

9-30 kW

C.H. operating temperature...........................

80°C max

80°C max

C.H. circuit pressures Min operating .............

0.7 bar 

0.7 bar

C.H. circuit pressures Max operating ............

2.5 bar 

2.5 bar

D.H.W. flow rates 30°C .................................

12.5 l/min 

14.5 l/min

D.H.W. flow rates 35°C  ................................

10.7 l/min 

12.4 l/min

Cold water mains pressures Min operating ...

0.5 bar

0.5 bar

Cold water mains pressures Max operating ..

10 bar 

10 bar

Flow limiter rate .............................................

8 l/min 

10 l/min

Safety discharge ...........................................

3 bar 

3 bar

Expansion vessel - Pre-charge pressure ......

0.7 bar 

0.7 bar

Net capacity at 3 bar in litres .........................

5.44 

5.44

Supply ...........................................................

230 v 

230 v

Consumption .................................................

150 w 

150 w

Protection ......................................................

IP 44 

IP 44

Fuse F1/F2/F3/F4 .........................................

2 A/1.25 A/0.315 A/0.250 A

External controls ...........................................

24 v 

24 v

Содержание Calydra green 24

Страница 1: ...as rate C H D H W min 0 64 kg h 0 73 kg h Gas valve restrictor diameter 4 40 mm 4 8 mm 24 kW 30 kW 24 kW 30 kW Heat gross input C H max 9 2 27 8 kW 10 4 31 6 kW Heat gross input D H W max 9 2 27 8 kW 10 4 31 6 kW Heat output C H 50 30 max 9 26 kW 10 30 kW Heat output C H 80 60 max 8 24 kW 9 28 kW Heat output DHW maxi 8 24 kW 9 30 kW C H operating temperature 80 C max 80 C max C H circuit pressures...

Страница 2: ...r 0 1 3 4 42 43 44 41 40 45 46 47 1 2 3 4 5 6 8 11 12 13 14 7 15 10 9 16 1 Steel chassis complete with expansion vessel 2 Sealed chamber 3 Burner and heat exchanger assembly 4 Air gas connection 5 24 V modulating fan 6 Gas valve 7 Ignition electrode 8 Ionisation probe 9 Ignitor 10 Combustion products manifold 11 24 V transformer 12 Siphon 13 Electrical box 14 Pump 15 Secondary heat exchanger 16 Pr...

Страница 3: ...e tap is opened at the gas meter and the main power is on Green indicator Power ON 36 3 Open the gas tap 42 The boiler is now ready to use Attention If the boiler remains off for a prolonged period of time air may collect in the gas pipes and can hinder the boilers initial attempts to light please refer to section 18 Incorrect Function Switching on the Central Heating Press key 29 the green indica...

Страница 4: ...nti freeze function of the room thermostat if fitted To leave the room thermo stat anti freeze system operative please leave the Central Heating mode on The boiler is equipped with an automatic anti freeze system which is permanently on If the Central Heating temperature decreases below 7 C the pump will start If the Central Heating temperature decreases below 4 C the pump and the burner will star...

Страница 5: ...nsures accurate temperature regulation When the tap is closed the burner may stay alight until the TSS cylinder is up to temperature Then the burner is extin guished and the pump stops The boiler will now stay in the hot water mode for 3 minutes to maintain temperature to ensure a fast response in the event of a subsequent hot water demand Priority will be given to a demand for hot water or re hea...

Страница 6: ...oiler by pressing the reset key 39 Overheat detection If an overheat over 100 C is detected in the primary circuit by the sensor 23 the safety solenoids close and the fan stops The orange LED 37 extinguishes and the pump remains running for 3 minutes The reset will only be possible once the primary temperature has dropped below 76 C CALYDRA GREEN FUNCTIONAL DIAGRAM 17 18 19 20 21 23 24 26 27 28 29...

Страница 7: ...urations of the boiler Section Digit 1 Digit 2 and 3 Software version of display PCB 0 10 to 99 Flue type 2 1 FF variable speed Room thermostat is calling for heat 3 0 no 3 1 yes Theoretical position of the 3 way valve 4 0 DHW 4 1 CH DHW flow temperature in Celsius degrees 5 from 00 to 99 TSS temperature in Celsius degrees 6 from 00 to 99 CH flow temperature in Celsius degrees 7 from 00 to 99 Soft...

Страница 8: ...rmostat operation 0 0 Burner only 0 1 Burner and pump Pump speed 1 0 High speed 1 1 Low speed Pump post circulation duration 2 0 0 min From 0 to 5 minutes by step of 0 5 min 2 0 5 min 2 1 0 min 2 5 0 min Maximum Central Heating flow temperature 4 50 C 4 80 C C H anti cycling delay 8 0 0 min From 0 to 7 minutes by step of 0 5 min 8 0 5 min 8 2 5 min 8 5 0 min C H maximum output limitation Model 24 ...

Страница 9: ...on rate to maximum output set in menu 4 sec tion 9 Central heating temperature is dis played in celsius degrees The 3 dots indicate that the combus tion rate control is ON at maximum output X X Switching off the combustion rate control mode press once press once press once press once press once Effect Display Locking conditions of the combustion rate control mode boiler in stand by mode D H W draw...

Страница 10: ...vely Action on burner only or pump and burner change to section 9 Adjustment of C H heat output Press key on D H W side 9 times The display shows 906 which corresponds to the 18 kW which is the factory setting 9 section 9 06 18 kW press setting key on CH side once the 2nd and 3rd digits flash together Then press the or key on the D H W side to change the C H heat output step between 00 and 10 Pres...

Страница 11: ...e gas valve assembly and the different transformers in the sealed chamber Check combustion chamber insulation panels for damage Check the lighting and ionisation electrodes condition Clean the burner Never use a metallic brush as this can damage the stainless steel Clean the heat exchanger Never use a metallic brush as this can damage the stainless steel Clean the siphon and pay attention to the a...

Страница 12: ...mbly and the venturi from the fan assembly by loosening the two hexagonal head screws Reassemble in reverse order and replace all necessary gaskets 9 Gas section Carry out all operations mentioned in step 7 Unscrew the three screws secur ing the air gas connection pipe onto the gas valve assembly Separate the gas valve assembly and the venturi from the fan assembly by loosening the two hexagonal h...

Страница 13: ...reverse order 22 Main control board Carry out step 1 as above and hinge down the electrical box by pressing the retaining tabs P on either side Remove wiring cover C Undo the 4 screws of the electrical rear panel and remove it Unplug all cables from the PCB remove the earth plug from the earth socket Hang out the main PCB Reassemble in reverse order 23 Display PCB Carry out step 1 and hinge down e...

Страница 14: ... heating thermistor Check heating thermistor Ok No No No No Yes Yes Yes No No No Ok Ok Ok Ok means a test or a choice means an action means a group of actions error code displayed PLEASE CHECK THE FOLLOWING POINTS CAREFULLY BEFORE GOING THROUGH THE FAULT FINDING CHART Gas pressure Electric mains Minimum water pressure in the heating circuit over 0 8 bar All isolating valves have been opened Boiler...

Страница 15: ...between the 2 PCBs Is the combution chamber full of conden sates Yes Check ionisation probe No Ok Drain and clean combustion cham ber siphon and drain pipes Yes Replace the ionisation probe No Stop water draw off Does DHW temper ature rise over 70 C Check DHW ther mistor No Ok Press on DHW key to switch off DHW mode Press on CH key to switch on CH mode and set CH tempera ture to maximum Press the ...

Страница 16: ...ED 277884 1003635 630 FUSE 250V 0 315A TEMPORIZED 1307845 640 TRANSFORMER 1308149 805 PRESSURE GAUGE 1303158 938 PRESSURE RELIEF VALVE 1020933 Description Key N Manf Pt N Type G C N Manf date C A L Y D R A G R E E N 2 4 C A L Y D R A G R E E N 3 0 from to 110 407 401 532 505 640 514 510 507 R37 R31 J7 R102 1 8 C68 ST2 FT1A Z11A Z9A R DL1 TH1A Z6A R132 U5 Z5A Z4A TERR E 1 TH1 C83 C78 C80 ST1 R87 Z9...

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