background image

IT

ES

PT

GB

115

4.5

DISASSEMBLY OF 

EXPANSION VESSEL

To  disassemble  the  expansion  vessel,  pro-

ceed as follows:

–Make sure that the water has been emp-

tied out of the boiler.

–Unscrew the connection and the locknut.

–Remove the expansion vessel.

Before refilling the system, using a pressu-

re  gauge  attached  to  the  valve  make  sure

that the expansion vessel is preloaded at a

pressure of 0.8 to 1 bar.

4.6

CLEANING AND 

MAINTENANCE

Preventive  maintenance  and  checking  of

efficient operation of equipment and safety

devices  must  be  carried  out  exclusively  by

authorized technical personnel.

During  maintenance  operations  the

authorised  technician  must  check  that

the  syphened  drip  is  full  of  water

(this

check  is  of  importance  particularly  when

the generator has been out of use for a long

period of time). Filling is done via the special

opening (fig. 24).

4.6.1

Disassembly the control panel 

and skirt cover lid 

(fig. 25)

To remove the cover, take out the screws

(1 – 2) that hold it in place on the instru-

ment panel. Position side

“A”

of the brack-

et on the skirt side so that the instrument

panel  is  hooked  on  the  side  in  order  to

facilitate this operation.

4.6.2

Chimney sweep function 

To  carry  out  the  verification  of  combustion

in  the  boiler,  turn  the  selector  and  stop  on

the  position  ( )  until  the  orange  led  (

)

starts to flash intermittently (fig. 29). 

From that moment the boiler will start func-

tioning  in  heating  mode  at  the  maximum

power,  with  switching  off  at  80°C  and

restarting at 70°C.

Before activating the chimney sweep func-

tion make sure that the radiator valves or

eventual zone valves are open.

The test may be carried out also during hot

water  functioning.  To  do  so  it  is  enough,

after  having  activated  the  chimney  sweep

function, to take some hot water from one

or  more  taps;  after  a  few  minutes  the

request  of  the  hot-water  service  feeler  is

activated  and  it  automatically  switches  on

the led (

). Even in this condition the boil-

er  functions  at  the  maximum  temperature

always with the primary controlled between

80°C and 70°C. During the entire duration

of  the  testing  the  hot  water  taps  must

remain open. After verifying the combustion

the boiler should be switched off by placing

the  selector  on  the  (

OFF

) position;  then

return the selector to the desired function.

ATTENTION:  After  about  15  minutes  the

chimney  sweep  function  automatically

deactivates.

4.6.3

Cleaning the “Aqua Guard 

Filter System”

(fig. 27)

Model 

“30/80”

,  to  clean  the  filter,  close

the  delivery/return  on/off  taps,  turn  off

the power to the control panel, remove the

casing and empty the boiler using the drain

provided.  Place  a  container  for  collection

underneath the filter and proceed to clean

the  filter,  removing  impurities  and  limesto-

ne  deposits.  Check  the  seal  o-ring  before

reassembling the cap with the filter.

Lato A

Lato A

Fig. 25

1

2

Side A

Side A

SPIA GIALLA INTERMITTENTE

Fig. 26

Fig. 24

Fig. 27

FLASHING YELLOW LED

Summary of Contents for DEWY 30/130

Page 1: ...bustion is unobstructed and has been properly installed Make sure that any shutoff valves are open Make sure that the system is charged with water and is thoroughly vented Check that the circulating pump is not locked CAUTION Remember to release the pump coupled with the control panel if necessary to protect the electronic control card Purge the system bleeding off the air present in the gas pipe ...

Page 2: ... 228 1 E D H W inlet 3 4 UNI ISO 228 1 U D H W outlet 3 4 UNI ISO 228 1 C Recirculation 3 4 UNI ISO 228 1 S1 C H safety relief valve S2 Tank unit safety relief valve S3 Condensation outlet ø 25 600 65 1620 610 315 252 76 M2 R2 M1 R1 M R S1 C1 S3 G S2 117 62 U C E 109 349 712 946 70 1109 1229 70 1349 140 300 300 828 846 1 2 2 30 130 model CONNECTIONS R Zone 1 system return 3 4 UNI ISO 228 1 R1 Zone...

Page 3: ... l min 19 9 21 0 Continuous D H W flow rate t 30 C l min 14 14 Maximum D H W pressure bar 7 7 D H W tank capacity l 80 130 D H W expansion vessel l 4 4 Recuperation time between 25 and 55 C min 9 9 40 Smokes temperature Maximum Minimum 80 60 C C 70 69 70 69 Maximum Minimum 50 30 C C 48 45 48 45 Smokes flow kg h 49 49 Category II2H3P II2H3P Type B23 C13 33 43 53 B23 C13 33 43 53 Weight kg 127 191 M...

Page 4: ...gle acting valve 10 Hot water tank pump 11 Expansion vessel 12 Boiler discharge 13 Air relief valve 14 Automatic by pass 15 D H W discharge cock 16 Tap water probe SB 17 Storage tank 130 liter 18 Magnesium anode 19 D H W safety valve 7 bar 20 Filling cock 21 D H W expansion vessel 22 Water pressure transducer 23 Safety valve 24 Condensation water trap 25 Limit stat 85 C 26 100 C safety stat 27 Sys...

Page 5: ...sitive pressure take off 9 Breather valve 11 Sensing electrode 12 Water gas exchanger 13 Control panel 14 Fan 15 Ignition transformer 16 Negative pressure take off 17 Flowmeter 18 C H sensor SM 19 Automatic breather 20 100 C safety stat 21 Circulating pump 22 Water pressure transducer 23 Safety valve 24 Magnesium anode 25 Storage tank 80 liter 26 D H W discharge cock 27 Smoke stat 28 Aqua Guard Fi...

Page 6: ...er to the module both capacity volume consumption in m3 h and gas density must be taken into account The sections of the piping making up the system must be such as to guarantee a supply of gas sufficient to cover the maxi mum demand limiting pressure loss between the gas meter and any apparatus being used to not greater than 1 0 mbar for family II gases natural gas 2 0 mbar for family III gases b...

Page 7: ...tions Table 1 gives the minimum distances to be observed with reference to the type of building shown in fig 5 Fig 5 TABLE 1 Siting of terminal Appliances from 7 to 35 kW distances in mm A below openable window 600 B below ventilation opening 600 C below eaves 300 D below balcony 1 300 E from adjacent window 400 F from adjacent ventilation opening 600 G from horizontal or vertical soil or drain pi...

Page 8: ... 1 Blind flange 2 Flue gas duct flange 3 Fixing screw 4 Gasket ø 125 95 5 Intake duct collar Fig 9 100 Fig 7 155 Ø 80 Ø 80 105 P L CA K Z CS KEY CA Inlet CS Outlet Example of allowable installation calculation in that the sum of the head losses of the single fittings is less than 15 5 mm H2O Inlet Outlet 7 m horizontal pipe ø 80 x 0 20 1 40 7 m horizontal pipe ø 80 x 0 40 2 80 n 2 90 elbows ø 80 x...

Page 9: ...nd smoke outlet pipes and then brin ging them back together again so as to obtain a concentric discharge by using the doubler fitting 9 fig 12 In these cases when assembling recover the silicone gasket used on the terminal adapter 5 fig 11 which is to be replaced by the doubler and insert it into the seat made in the doubler For this type of discharge the sum of the maximum rectilinear development...

Page 10: ... 25 m use cables of section 0 25 mm2 for longer lengths up to 50 m use cables of section 0 5 mm2 First of all assemble and wire the socket 2 then insert the equipment which will start up as soon as it receives current To gain access to connector 3 remove the control panel cover and connect the climate regulator to terminals CR 6 7 WARNING External voltage must not be connected to terminals 1 2 3 4...

Page 11: ...t V Fan TPA Water pressure transducer VD Motor operated diverter valve PI Pump SE External sensor optional TA Room stat SM C H sensor blue TL Limit stat TRA Ignition transformer TR Transformer 230 24V FL Flowmeter SS D H W sensor red CR Logica Remote Control optional SV Ventilator board OP Time programmer TF Smoke stat Note The room stat must TA be con nected to the terminals 5 6 CONNECTOR SPARE P...

Page 12: ... Time programmer TF Smoke stat PB Hot water tank pump PR Recirculation pump optional Note The room stat must TA be con nected to the terminals 5 6 CONNECTOR SPARE PART CODES J2 code 6278613 J3 code 6278660 J4 code 6278659 J5 code 6278658 J7 code 6278636 Fig 14 a 2 8 5 Wiring diagram 30 130 model Fig 14 b 2 8 6 30 130 wiring diagram with zone pump kit code 8100700 and third zone pump kit 8100710 LE...

Page 13: ...apid lowering ECO functions daily heating limiter auto matic summer winter switch over Controllable maximum delivery tempera ture limit specifically for floor plants Limitation of increase in pre set delivery temperature Anti freeze protection for buildings Hourly programming of the tank unit temperature on two levels comfort and reduced Domestic hot water control with nominal value requirement an...

Page 14: ...been pre set function disabled If the switch off time optimisation is active value 0 the Logica Remote Control modifies the pre set time until it finds the optimum switch off time 55 56 57 58 59 60 Antifreeze protection Pre set ambient temperature value Summer Winter switch over temperature Type of control 0 with ambient influence 1 without ambient influence Influence of ambient temperature Heatin...

Page 15: ...is regu lated to the value set with user parameter n 3 In the reduced areas of heating the temperature of the boiler unit is regulated to the value set with parameter n 61 of the service level 2 service disconnected 3 second daily programme 8 Every day of the week the temperature of the hot water is set according to programme 8 In this case there is a single programming for all the days of the wee...

Page 16: ...t be regulated so as to obtain a pressure of approx 3 mbar at the burner for methane gas and 7 mbar for propane gas G31 To increase pressure turn the trimmer clockwise to reduce pressure turn the trimmer counterclockwise The slow ignition pressure level can be set during the first 3 seconds following burner ignition After setting the pressure level upon ignition STEP according to the type of gas c...

Page 17: ...cordless plugs are inser ted in the position indicated Flashing red led communication fault with Logica Remote Control Green led off if power is cut off Flashing red led water pressure is too low Flashing red led heating sensor fault SM Flashing red led plant safety valve tripped Red led on ignition blocked rotate selector CR OFF EST INV RESET to release position to restore operation Flashing red ...

Page 18: ...ils having a break in the win ding so that the valve cannot open Ignition electrode fails to spark In the boiler only the gas to the burner is seen to open After 10 sec the war ning light indicating equipment lock out lights up This may be due to a break in the wire of the electrode or to the wire not properly fastened to the electric terminal of the control box No detection of flame The continuou...

Page 19: ...ar Zone 3 350 l h 400 l h 750 l h As shown in the graph at the 800 l y curve curve E head at 400 l h 160 mbar 3 5 2 Head available with the low temperature kit In 30 130 versions using the low tempe rature kit residual available head on the basis of rate of flow is represented in the graph in fig 18 b 111 IT ES PT GB 0 200 1600 1400 1200 1000 800 600 400 PORTATA l h PREVALENZA RESIDUA mbar 500 400...

Page 20: ...s 3 Pressure inlet upstream 4 Pressure inlet downstream 5 OFF SET CR1 CR TA 5 SONDA SANITARIO CONNETTORE J2 COPERTURA TA 6 SB 11 SB 12 CIRCUITO CON VALVOLE DI ZONA NOTA I relé vengono impiegati solo nel caso le valvole di zona siano prive di micro L N TA TA1 VZ R VZ1 R1 CIRCUITO CON POMPE DI ZONA L N TA TA P R P1 R1 KEY TA TA1 Zone room stat VZ VZ1 Zone gas valve R R1 Zone relay CR CR1 Zone microv...

Page 21: ... Digital pressure gauge 0 30 20 10 p aria mm H2O Potenza termica kW 25 20 10 15 50 40 60 5 30 50 30 C 35 70 80 60 C 0 30 20 10 p aria mm H2O Potenza termica kW 25 20 10 15 50 40 60 5 30 50 30 C 35 70 80 60 C G20 G31 4 3 1 Diagram illustrating heat output in relation to air p TABLE 4 a G20 Air p is measured during boiler operation using a differential pressure gauge connected to the ventilator inta...

Page 22: ...PROPANE G31 boilers it is a good idea to check that the position of the GPL bridge on the control board is correct Diaphragm code 6028640 Drawing 7 is assembled on the Dewy 25 model functioning on PROPANE G31 only If the fan control board code 8260501 is replaced on Dewy models running on PROPANE G31 it is very important to remember to cut the specified resistance Drawing 8 B 2 1 Upon completion o...

Page 23: ...that moment the boiler will start func tioning in heating mode at the maximum power with switching off at 80 C and restarting at 70 C Before activating the chimney sweep func tion make sure that the radiator valves or eventual zone valves are open The test may be carried out also during hot water functioning To do so it is enough after having activated the chimney sweep function to take some hot w...

Page 24: ...set temperature is indi cated on the red led scale from 35 80 C and the yellow heating led lights up at the same time If the temperature of the blackflow water is lower than around 55 C condensation of the combustion by products is obtai ned further increasing the efficency of thew thermal exchange TURNING THE BOILER OFF fig 1 To turn the boiler off place the selector knob on the OFF position If t...

Page 25: ...ig 5 If the safety thermostat trips the red 35 C led will start flashing In order to attempt a boiler restart rotate the selector knob to position and relea se immediately returning it to the sum mer or winter position If the boiler lock out occurs again call local authorised Service Centre for technical assistance CLEANING AND MAINTENANCE Preventive maintenance and checking of the efficient opera...

Page 26: ... position obviou sly without consequent control of the room temperature No interior da tampa estão indicadas as instruções de funcionamento fig 8 Cada programação ou modificação é visualizada e confirmada no display fig 9 LOGICA REMOTE CONTROL 1 6 7 8 4 5 3 2 KEY 1 Display 2 Info button 3 Operating mode button automatic operation 4 Operating mode button manual operation 5 Operating mode button ava...

Page 27: ... the fol lowing list of items one after the other are displayed The thermo feeler continues to function independently of the display Day hour room temperature External temperature Hot water service temperature This data appear only if the relative feeler is connected or if they are transmitted by the regulator of the boiler Info key reference key grey colour The operating mode desired is selected ...

Page 28: ...ture of hot water service comfort temperature of the hot water service with storage capacity boiler unit Reduced temperature of hot water service with storage capacity boiler unit temperature desired for hot water service at reduced level To have access to the reduced hot water service temperature parameter press the and keys at the same time for at least 5 seconds and then go along the entered li...

Page 29: ...e temperature set in parameter 3 1 standard Hot water according to the daily heating programme In the comfort periods of the heating the temperature of the boiler unit is regulated at the value set via para meter 61 2 sservice suspended 3 second daily programme 8 Everyday of the week the temperature of the hot water ser vice is set according to programme B In this case the programming is one for a...

Page 30: ...sure Reset operation using the boiler charge valve fig 4 Plant overpressure Call an authorised Service Centre Safety thermostat trips Call an authorised Service Centre The exhaust gas pressure switch trips Call an authorised Service Centre No communication between the Logica Remote Control and the boiler Call an authorised Service Centre Vacation function To enter the number of days of absence In ...

Page 31: ...70 kW EN 656 per APPARECCHI A GAS DI TIPO B AVENTI PORTATA TERMICA 70 300 kW EN 483 per APPARECCHI A GAS DI TIPO C AVENTI PORTATA TERMICA 70 kW La portata al sanitario delle caldaie combinate è rispondente alla norma UNI EN 625 per APPARECCHI AVENTI PORTATA TERMICA 70 kW Le Caldaie a gas sono inoltre conformi alla DIRETTIVA GAS 90 396 CEE per la conformità CE di tipo DIRETTIVA BASSA TENSIONE 73 23...

Page 32: ...7 8 290 0 88 8 88 9 87 2 87 7 RS 279 Mk II 279 1 313 6 88 9 89 0 87 3 87 8 BITHERM 20 65 22 0 25 0 86 7 88 0 84 0 84 5 BITHERM 26 80 30 5 34 8 87 0 87 6 84 4 84 8 BITHERM 35 80 37 2 42 4 87 1 87 7 84 7 85 3 BITHERM 26 80 BF 31 0 34 0 87 0 91 1 84 3 92 0 DUOGAS 20 40 22 0 25 0 86 7 88 0 84 0 84 5 DUOGAS 26 40 30 5 34 8 87 0 87 6 84 4 84 8 LOGO 22 OF 23 7 26 0 89 7 91 0 87 1 90 6 LOGO 32 32 50 32 80...

Page 33: ......

Page 34: ...Fonderie Sime S p A Via Garbo 27 37045 Legnago Vr Tel 39 0442 631111 Fax 39 0442 631292 www sime it Cod 6255540C 10 05 Documentation Dpt ...

Reviews: