Unical EVE 05 CTFS 24 Installation, Use And Maintenance Manual Download Page 1

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EVE

RTN 24 - RTFS 24
CTN 24 F - CTFS 24 F
CTN 24 - CTFS 24

00332243 - 3

edition - 10/2010

INSTALLATION USE

AND MAINTENANCE

English

Summary of Contents for EVE 05 CTFS 24

Page 1: ...EVE 05 RTN 24 RTFS 24 CTN 24 F CTFS 24 F CTN 24 CTFS 24 00332243 3rd edition 10 2010 INSTALLATION USE AND MAINTENANCE English ...

Page 2: ... be used for all repairs to the boiler Non observance of the above requirement may jeopardize the safety of the boilers and expose people animals and property to danger To guarantee efficiency and correct functioning of the equipment it is legally binding to service the boilers once a year according to the schedule indicated in the relative section of this manual In the event of long periods of in...

Page 3: ...there is a suspicion of gas leak Contact IMMEDIATELY the technical personnel DON T SEEK GAS LEAKS WITH NAKED FLAMES LACK OF WATER If the pressure decreases repeatedly below the minimum operational pressure it means that there is a lack of water in the heating circuit Contact the technical personnel for an inspection to the system C To put again the boiler in operation it will be neces sary to pres...

Page 4: ... required tem perature you will avoid to mix hot wa ter with cold water in this way reduc ing both the boiler operation costs and the scaling formation Winter operation Central Heating Domestic Hot Water for C models Central Heating only for R models Summer operation Domestic Hot Water only for models C MAX M I N Set the Central Heating tempera ture knob to the symbol MAX MIN Set the Domestic Hot ...

Page 5: ... valve CLEANING For the simple cleaning use a dry cloth To remove hard blots clean with a wet cloth and wipe with a dry cloth DO NOT USE abrasive products ANTIFROST PROTECTION The boiler is equipped with an antifrost system that operates au tomatically when the boiler water temperature decreases under 6 C the burner and the pump are automatically put into operation until the Central Heating system...

Page 6: ...203 1 18 F factor N stars based on the quality of water declared EN 13203 1 19 PMW Max pressure D H W system 20 T max Max temperature D H W system C Electrical features 21 Electrical power supply 22 Consumption 23 Protection grade D Countries of destination 24 Direct and indirect country of destination 25 Gas family 26 Supply pressure E Factory setting 27 Adjusted for gas type X 28 Space for natio...

Page 7: ...Discharge and suction pipe configuration pag 17 2 2 7 Positioning of terminals for type C boilers pag 18 2 2 8 Smoke evacuation Ø80 air suction flange pag 19 2 2 9 Discharge of flue gas into coaxial ducts with a diameter of 100 60 mm Type A accessories pag 20 2 2 10 Flue gas discharge and air suction with separate pipes with 80 mm diameter pag 21 2 2 11 Measurements of combustion efficiency pag 23...

Page 8: ...nic ignition Models in the EVE 05 series are the following EVE 05 CTN 24 F open boiler with electronic ignition and instantaneous D H W produc tion EVE 05 RTN 24 open boiler with electronic ignition for heating only EVE 05 CTFS 24 F forced draught room se aled boiler with electronic ignition and in stantaneous D H W production EVE 05 RTFS 24 forced draught room sea led boiler with electronic ignit...

Page 9: ... pressure switch 18 By pass unadjustable 19 Boiler drain cock 20 Heating circuit safety valve 21 Filling valve C D H W outlet F D C W inlet G Gas inlet R C H system return M C H system flow 1 Flow switch Cold water filter 2 D H W flow restrictor 3 Gas valve 4 D H W temperature sensor 5 Burner nozzles 6 Ionisation Ignition electrode 7 Burner 8 Bithermal heat exchanger 9 H L thermostat 10 Flue gas e...

Page 10: ...ng circuit safety valve 18 Filling valve F D C W inlet G Gas inlet R C H system return M C H system flow 1 Gas valve 2 Burner nozzles 3 Ionisation Ignition electrode 4 Burner 5 Monotermal heat exchanger 6 Air flue coaxial duct 7 Flue gas extractor fan 8 Micro switch on flue gas pressure switch 9 Flue gas pressure switch 10 H L thermostat 11 Expansion vessel inflating valve 12 Expansion vessel 13 A...

Page 11: ...valve motor 22 Boiler drain cock 23 Diverting valve 24 Heating circuit safety valve 25 Filling valve C D H W outlet F D C W inlet G Gas inlet R C H system return M C H system flow 1 Flow switch Cold water filter 2 D H W flow restrictor 3 Gas valve 4 D H W temperature sensor 5 Plates heat exchanger for DHW production 6 Circulating pump 7 Burner nozzles 8 Ionisation Ignition electrode 9 Burner 10 Mo...

Page 12: ...boilers are used in low tem perature heating system ex floor hea ting it is necessary to use a mixing valve to avoid condensation phenomena 1 4 OPERATING DATA Nominal output Minimum output Actual water efficiency at full load 100 Min required water efficiency at full load 100 Actual water efficiency at part load 30 Min required water efficiency at part load 30 Stars No off According EEC Directive ...

Page 13: ...or rules in force For the boiler category which changes according to the destination country see page 6 NOTE Observe the corresponding technical rules and the building supervisory and statutory regulations of the country of final use when installing and operating the system Always ensure that an appropriately specialised company is entrusted with installation gas supply and flue gas connection com...

Page 14: ...in partitions avoid installing the boiler above applian ces which might affect operation when in use cookers which produce greasy steam washing machines etc avoid installing natural draught boilers in corrosive or very dusty atmospheres such as hairdressers laundrettes etc as the life of the boiler components could be si gnificantly shortened M C H system flow C D H W outlet G Gas F Cold water inl...

Page 15: ...e duct must have a vertical section with a length more than twice the diameter before get ting into the chimney 2 2 5 FLUE GAS DISCHARGE SYSTEM NATURAL DRAUGHT OPEN FLUE BOILERS Connection to the chimney A good chimney is very important for the cor rect functioning of the boiler it must therefore conform with the following requirements it must be made from waterproof material and be resistant at t...

Page 16: ...protrude from the wall of the building for a length of at least twice the diameter of the duct the draught terminal must overlap the con nection to the boiler by at least 1 5 m see fig 8 DIMENSIONS FOR CONNECTING FLUE GAS DUCT WARNING The boiler is fitted with an automatic safety reset device as protection against spillage of combustion products inside the building In case of the device operation ...

Page 17: ... including two ducts one for the suction of combustion air and the other for the exhaust of the combustion products through coaxial or dual ducts The chimney must comply with relevant applicable law provisions C52 Boiler with separate combustion air suction and combustion product exhaust ducts These ducts can discharge into are as with different pressure The dual ducts must not be located on two o...

Page 18: ... of the building I 300 From the ground or from another floor L 2500 Between two vertical terminals M 1500 Between two horizontal terminals N 1000 From a facing front surface without opening or teminals within a radius of 3 mt from smoke outlet point O 2000 As above but with openings or terminals within a radius of 3 mt from smoke outlet point P 3000 NOTES 1 Terminals below a practicable balcony sh...

Page 19: ...moke ter minal For this type of installation the chim ney has to serve just one boiler i e the boiler must have its indipendent smo ke duct WARNING For the installation where there is a freezing risk it is suggested to insulate the smoke duct 80 mm dia on all its length both in case it discharges from a verti cal wall or in a chimney WARNING For the smoke ou tlet configuration see fig 13 14 it is ...

Page 20: ... diaphragm Ø 42 supplied with the boi ler must be inserted in the flue gas exhaust pipe as shown in figure 15 for installa tions with horizontal coaxial pipe up to 1 m and with vertical coaxial pipe up to 2 m VERTICAL FLUE DUCT WITH COAXIAL DUCT Ø 80 125 Tipo C32 Ø 80 125 The minimum length of vertical coaxial ducts is 1 2 metres The maximum allowable length of vertical coaxial ducts is 6 metres e...

Page 21: ...oresee a convenient insulation of such a duct The flue duct during the operation of the boiler can reach tempera tures higher than 120 C IMPORTANT Flue gas pressure switch operation The boiler is fitted with a device control ling flue gas pressure This device shuts down the boiler in the event of a malfunction This situation is indicated by the failure led lighting on the display by pressing the r...

Page 22: ...E AND THE FLUE GAS DISCHARGE WITH DUAL DUCTS _ 500 Hmin 150 mm CONFIGURATIONS FOR SEPARATE PIPES SUCTION AND OUTLET Ø 80 Example N 1 Primary air suction from perimeter wall and flue gas discharge on roof Maximum allowable pressure loss 50 Pa 87 120 152 Ø 80 123 90 Example N 1 ...

Page 23: ...air inlet terminal the pressure loss is 3 Pa for the Ø 80 L 0 6 m horizontal discharge end section the pressure loss is 5 Pa NB These values refer to dis charges through original UNI CAL non flexible and smooth ducts Example N 2 Primary air suction from perimeter wall and flue gas discharge from the same outside pe rimeter wall It is not allowed to position the 2 termi nals in opposite walls Maxim...

Page 24: ...e test no pressure reduc tion is to be detected on the gas pressure gauge If gas leaks have to be found use only water soap solution or any other spe cific gas leak detector which can be avai lable on the market Never look for gas leaks using a naked flame While connecting gas inlet pipe of the boiler to the pipe coming from gas network it is MANDATORY to insert a TIGHT GASKET whose dimensions and...

Page 25: ...0 2 0 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 V1 V2 V3 6 2 6 0 5 8 5 6 5 4 5 2 5 0 4 8 4 6 4 4 4 2 4 0 3 8 3 6 3 4 3 2 3 0 2 8 2 6 2 4 2 2 2 0 1 8 1 6 1 4 1 2 1 0 0 8 0 6 0 4 0 2 0 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 V1 V2 V3 DIAGRA...

Page 26: ...e code 95600259 M1 CP A fig 24 B B Open the rear cover CP and replace the cable A connector A7 The female faston of the hearting cable has to be connected on the male faston GND 1 Connection of the ON OFF room thermostat RT Approach the connector M1 Remove the existing jumper and connect on its place the room thermostat cable Collegamento ad un bollitore esterno It is necessary to make the electri...

Page 27: ...K Minimum water pressure switch SR C H sensor FL Flow switch SS Rotary flow switch only for CTN CTFS MVD Motor 3 way valve optional for only heating boiler MD Modulating coil MD MODULATING COIL DK MINIMUM WATER PRESSURE SR C H TEMPERATURE SENSOR TA ROOM THERMOSTAT TF FLUE GAS SPILLAGE THERMOSTAT TL HIGH LIMIT THERMOSTAT PV FAN PRESSURE SWITCH TL HIGH LIMIT THERMOSTAT FL Flow switch SS DHW sensor M...

Page 28: ... boiler s safety valve is not locked there are no water leaks SWITCHING ON AND OFF To switch on and off the boiler follow the indications in the Users Instructions Filling position fig 26 Normal posi tion FILLING TAP 2 4 FILLING THE SYSTEM After completing all the connections of the system the heating circuit can be filled This filling operation must be performed with care as follows open the air ...

Page 29: ...um capacity F blinking L fixed when the burner is ignited check that the MAXIMUM pressure value cor responds to that indicated on the table NOZZLES PRESSURES Correct eventually the value rotating the nut C with a 10 mm wrench fig 28 by rotating clockwise the gas pressure increases anticlockwise the gas pressure is reduced 2 Minimum output adjustment Push a second time the reset push button and the...

Page 30: ...eplace them with those with a diame ter corresponding to the new type of gas see table INJECTORS PRESSURES reassemble the main burner position the jumper on the modulation PCB in the panel board as shown in fig 31 remove plug A fig 28 on the gas valve and fully tighten max pressure adjustment screws B check the pressure value upstream the gas valve see table INJECTORS PRESSU RES and adjust the pre...

Page 31: ...the pump and eventually descale the heat exchanger 2 10 4 Difficult smoke evacuation priority 4 Description Difficult smoke evacuation Possible solution TN boilers verify the chimney draught or the smoke thermostat TFS boilers verify the fan and its own pressure switch operations 2 10 5 Lack of water priority 5 Description Insufficient water pressure intervention of minimum water pressure switch P...

Page 32: ...nections 2 10 10 Factory parameters priority 10 Description Factory parameters alteration Possible solution with the access code reset the 13 factory parameters 2 10 11 Flame control priority 11 Description Burner control is damaged Possible solution replace the main PCB 2 10 12 Lock out Description Lack of gas or burner ignition not detected Possible solution verify the gas feeding and the correc...

Page 33: ...ated by the arrow on the illustration it means that the boi ler always gives priority to the pro duction of domestic hot water if it is requested and controls the temperature of the water of the heating circuit from a minimum of 45 C to a maximum of 78 C D H W temperature control C Only for EVE 05 CTN 24 F EVE CTFS 24 28 F If the knob is set within the ran ge indicated by the arrow on the illustra...

Page 34: ...VE 05 CTN CTFS C B B SWITCHING OFF Put the B knob on the SUN position and the C knob to the minimum Switch OFF the boiler by acting on the external main switch provided the antifrost protection is not required otherwise go to 3 3 For the operation of the boiler in SUMMER mode only for domestic hot water production the knob B reference has to be positioned on the SUN and the D H W temperature value...

Page 35: ... ignite a gas cooker If so wait one minute before resetting the boiler by depressing the L push button If the boiler does not start and goes into lockout position after three times just once if is ope rated on LPG ask for a service or for a qualified technician If the boiler goes into lockout position frequently indication of a repeatetive fault in the operation ask for a service or for a qualifie...

Page 36: ...660556 The Unical declines every responsibility for the possible inaccuracies if owed to errors of transcript or press Also reserves the right to bring those changes that it will hold necessary to it own products or profits without jeopardizing its essential characteristics ...

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