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51

Servicing schedule

To ensure the continued safe and efficient
operation of the boiler it is highly
recommended that it is checked at regular
intervals and serviced when necessary, and
that only original spare parts are used.
The law in force states that the boiler must
be serviced annually.

If the boiler is not checked and serviced when
necessary it could cause material and
personal damages.

For this reason UNICAL recommends that a servicing con-
tract should be made with a heating installer.

The regular inspection is useful to determine the actual state
of an appliance and to compare it with an optimum state. This
is achieved through measurement, control and observation.

The service is necessary to eliminate eventual deviations of
the actual state from the optimum state. This is normally done
through the cleaning, the parameters setting and the even-
tual replacement of single components subject to mechanical
wear.

The frequency of servicing will be determined by the service
engineer and will depend on appliance’s state of condition.

4

INSTRUCTIONS FOR SERVICING

To ensure a long life to all your boiler
components and in order not to alter the
conditions of the approved product only
original UNICAL spare parts must be used.

After having carried out all the necessary maintenance, always
follow these steps:

•

Switch OFF the main switch

•

Isolate the boiler from mains via a device having, at least,
a 3 mm in the switch contacts (e.g.: safety devices or power
switches) and make sure it cannot be switched ON acci-
dentally.

•

Switch off the gas gate valve upstream the boiler.

-

If necessary, and in function of the type of work to be carried
out, close any on-off valves fitted on the CH flow and return
pipes, as well as the cold inlet valve.

-

Remove the appliance’s front panel.

After maintenance works have been finished, follow the next
steps:

-

Open the CH flow and return valves as well as the cold
inlet valve (if previously closed),

-

Purge and, if necessary, proceed with restoring the heating
system’s pressure until a pressure of 0,8/1 bar is reached.

-

Open the on-off gas valve.

-

Reconnect the appliance to the electrical supply and
switch on the mains electrical supply.

-

Test for gas soundness, on the gas side and on the water
side.

-

Replace the appliance’s front panel.

.

SERVICING
SCHEDULE

Relation between the temperature (°C) and the nom.
resistance (Ohm) of the heating sensor SR and the return
heating sensor SRR.

T°C

0

1

2

3

4

5

6

7

8

9

0

32755

31137

29607

28161

26795

25502

24278

23121

22025

20987

10

20003

19072

18189

17351

16557

15803

15088

14410

13765

13153

20

12571

12019

11493

10994

10519

10067

9636

9227

8837

8466

30

8112

7775

7454

7147

6855

6577

6311

6057

5815

5584

40

5363

5152

4951

4758

4574

4398

4230

4069

3915

3768

50

3627

3491

3362

3238

3119

3006

2897

2792

2692

2596

60

2504

2415

2330

2249

2171

2096

2023

1954

1888

1824

70

1762

1703

1646

1592

1539

1488

1440

1393

1348

1304

80

1263

1222

1183

1146

1110

1075

1042

1010

979

949

90

920

892

865

839

814

790

766

744

722

701

TABLE OF THE RESISTANCE VALUES IN FUNCTION OF THE HEATING SENSOR (SR) AND RETURN HEATING SENSOR
TEMPERATURE (SRR)

Example:

At 25°C, the nominal resistance is 10067 Ohm
At 90°C, the nominal resistance is 920 Ohm

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Содержание Modulex EXT 440

Страница 1: ...Modular Condensing Boiler Modulex EXT 440 550 660 770 900 Installation and Servicing Instructions ...

Страница 2: ...23 3 15 Boiler freeze protection 24 3 16 Mixing header and plate heat exchanger 24 3 17 Condensing drain 25 3 18 Water treatment 26 3 19 Flue chimney connection 27 3 20 Flue manifold connection 27 3 21 Operation 29 3 22 Electrical connections 31 3 23 Functional wiring diagram 32 3 24 Wiring diagram for connection and managing 34 3 25 Installation examples functional wiring and connections descript...

Страница 3: ... to be instructed on the use and operation of his heating system in particular Hand over these instructions to the end user together with any other literature regarding this appliance placed inside the envelope contained in the packaging The user has to keep these documents in a safe place in order to always have them at hand for future reference Inform the user on the importance of air vents and ...

Страница 4: ...pipe connections use only adequate fork spanners The improper use and or the use of inadequate equipment can cause damages for example water or gas leakages WARNING Indications for appliances operating with propane gas Ensure yourself that before installing the appliance the gas tank has been purged For a correct purging of the tank contact the liquid gas supplier or a competent person who has bee...

Страница 5: ...ater circuit features 15 Qnw Nominal heat input in D H W mode if different from Qn 16 D Specific D H W flow rate according to EN 625 EN 13203 1 17 R factor N taps based on the quantity of water declared EN 13203 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 sup...

Страница 6: ... cleaning or servicing turn off the electrical supply to the boiler by means of the ON OFF switch and or by means of the appropriate shutdown devices Do not obstruct the intake outlet terminal ducts In the event of failure and or faulty functioning of the appliance switch off the boiler Do not attempt to make any repairs contact qualified technicians Any repairs must be carried out by Unical autho...

Страница 7: ...2 TECHNICAL FEATURES AND DIMENSIONS Logic of operation A Output sharing on as many modules as possible at min load down to 22 kW for the max efficiency B Automatic operation hour splitting up system for each module to guarantee the best homogeneous use C D H W production via a storage tank loading pump or a three way diverting valve controlled by a priority sensor through the E 8 heating controlle...

Страница 8: ... 4 1448 1087 1039 946 80 3 100 4 100 4 300 40 395 946 235 S 1267 534 327 R M G 122 660 6 1448 1355 1307 946 80 3 100 4 100 4 300 40 770 7 1448 1623 1575 946 80 3 100 4 100 4 300 40 550 5 1448 1355 1307 946 80 3 100 4 100 4 300 40 900 8 1448 1623 1575 946 80 3 100 4 100 4 300 40 Smoke outlet Left side standard condition Right side Back side 1448 L1 287 L 62 5 24 S 2 2 DIMENSIONS FRONT VIEW RIGHT HA...

Страница 9: ...Minimum Heat Input on P C I Qmin kW Nominal Output Tr 60 Tm 80 C Pn kW Minimum Output Tr 60 Tm 80 C Pn min kW Nominal Output Tr 30 Tm 50 C Pcond kW Minimum Output Tr 30 Tm 50 C Pcond min kW Efficiency at max output Tr 60 Tm 80 C Efficiency at min output Tr 60 Tm 80 C Efficiency at max output Tr 30 Tm 50 C Efficiency at min output Tr 30 Tm 50 C Efficiency Class acc to Directive 92 42 CEE Combustion...

Страница 10: ... on the L H side Gas connection on the L H side BCM under the frontal panel 2 4 R H SIDE VIEW WITH MAIN COMPONENTS GAS PIPE H LIMIT THERMOSTAT IGNITION ELECTRODE CONTROLL PANEL FAN GAS VALVE BURNER COVER BURNER ALUMINIUM SILICON HEAT EXCHANGER CONDENSATE COLLECTING TRAY SMOKE MANIFOLD C H RETURN C H FLOW AUTOMATIC AIR VENT Min Depth 100 mm BOILER FRAME ...

Страница 11: ... indication on the packaging and on the data badge c Check that the chimney flue pipe has an adequate draught does not have any constrictions and that no other appliance s flue outlets have been fitted unless the chimney is serving more than one heating appliance according to the specific standards and regulations in force The connection between the boiler and chimney flue outlet can be made only ...

Страница 12: ...pply company The installation must be carried in accordance to the codes of practice the regulations and the requirements hereby indicated which constitute an indicative list but not a complete one as these continue to undergo evolve devolpments Moreover the boiler must be installed in accordance to all the regulations regarding the boiler room the building regulations and the prescriptions regard...

Страница 13: ...have a jib crane to avoid to damage during the removal Remove the casings and make the sling with the belts A fig 3 having care to pass the belts bearing bars frame Tie the belts to thearm B during these operationsact with caution On the L H side of the boiler There is the terminal of the smoke chamber fixed A carton box containing Gasket between smoke chamber and its terminal Gasket for the base ...

Страница 14: ...rn u pside down Do no t exp ose t o ra in Frag ile Do n ot ex pose t o sun ligh t Do not store at t emp eratu re l owert han 5 C 23 F s uperior tha n 50 C 122 F T max 50 C 122 F T mi n 5 C 23 F 3 Max adm itt ed bo ilers sta cked Do no t t urn u psid e do wn Do n ot exp ose to rain F ra gile Do n ot e xpo se to s unl igh t Do no t st ore at t emp eratu re l ower th an 5 C 2 3 F su pe rio r than 50 ...

Страница 15: ...applicable requirement The boiler can be put on a flat and sufficiently strong base with the same dimensions as the boiler ones and at least 100mm high see fig 25 in order to assemble the conden sate drain siphon An alternative to this base may be a 100mm deep well next to the boiler as siphon housing see fig 25 After installation the boiler shall be perfectly horizontal and stable to reduce any p...

Страница 16: ...ained in the system The system has been cleaned of impurities and lime scale When a Modulex boiler is installed onto an existing heating system In case the replacement of an existing boiler in an old system can be programmed it is necessary to thoroughly clean out the system with a basic solution The system must be cleaned 4 weeks before the substitution with the system firing at a temperature of ...

Страница 17: ...ts indicated by the local gas supplier An incorrect installation could cause injury to persons animals or damage to property The manufacturer shall not be held liable for any injury and or damage Before installing the boiler it is recommended to thoroughly clean all the supply piping in order to remove any eventual residual grime which could compromise the boilers correct functioning If you smell ...

Страница 18: ...RBIDDENTOFITON OFF VALVES ON THE GENERATOR TO THE FORE OFTHESAFTEYDEVICES WARNING Before installing the boiler we recommend that the system is flushed out with a suitable product in compliance to the norm UNI CTI 8065 in order to eliminate any metallic tooling or welding residues oil and grime which could reach the boiler and affect the proper running of the boiler Non observance of these instruct...

Страница 19: ...owing table gives an indication of the pump s flow rate in function of the Δt of the primary circuit if the installation has a mixing header For a DT 20 K of a MODULEX 900 boiler the max water flow rate requested is 36289 l h From the graph of the boiler s pressure losses it can be determined that the pump must be able to guarantee a delivery head of at least 1 8 m H2 O 0 0 4 0 2 0 6 0 8 1 1 4 1 2...

Страница 20: ... pressure switch it has the function of shutting down the generator if it reaches the maximum working pressure can be calibrated from CONTROLDEVICES 11 Pressure indicator with shock absorber tube 12 and pressure gauge holder valve 13 it indicates the effective 3 10 ADDITIONAL SAFETY AND CONTROL DEVICES ACCORDING TO THE ITALIAN LAW 1 2 2a 4 6 1a 11 12 14 15 18 10 13 17 3 19 16 kit ISPELS MODULEX 44...

Страница 21: ...NAL SAFETY DEVICES MODULEX 440 550 660 700 COMPO S 00361994 PREMO S 00362065 PREMO C 00362067 MODULEX 900 COMPO S 00361995 PREMO S 00362066 PREMO C 00362068 COMPO S PREMO S PREMO C 3 11 WIRING DIAGRAM FOR ADDITIONAL SAFETY DEVICES Pump management via E8 to the terminal 4 A10 from the IV connector LINE 230 V Safety devices kit RELAY L N LINE Boiler mains supply 230 V N L1 L N N L1 Terminals EXT MIN...

Страница 22: ...ge pipe with a funnel and a siphon which lead to an adequate drainage The drainage has to be controllable by sight If this precaution is not made an eventual intervention of the pressure relief valve could cause injury to persons animals or damage to property The manufacturer shall not be held liable for any injury and or damage 3 14 BALLSTOP VALVES The installation of ballstop gate valves on the ...

Страница 23: ...re Boiler Circuit M 70 C R 55 C Heating System Circuit M 50 C R 40 C Plate Heat exchanger COLD OUT CH FLOW to System circuit G 4 COLD IN CH RETOUR from System circuit G 4 HOT IN CH FLOW from boiler G 4 HOT OUT CH RETOUR to boiler G 4 3 15 BOILER FREEZE PROTECTION Should the flow temperature measured at global flow tempera ture NTC decrease under 7 C the system pump is set up Shoul temperature decr...

Страница 24: ...allation its minimum height when all the fans are in oper ation must be at least 25 mm 1 in Is forbidden discharge the condensate through the rain gutters given the risk of ice and degradation of the materials normally used The connection discharge should be visible due to the level of condensate acidity pH 3 to 5 as a material piping must be used only suitable plastics The outlet of the condensat...

Страница 25: ... water is alkaline or it is caused by an alkaline treatment for example phosphate or glycol used as an antifreeze or in several cases it is due to the natural formation of alkaline in the system Vice versa if the pH value is between 6 5 and 8 the aluminium surfaces of the boiler body are passivated and protected from further corrosive attacks To minimize corrosion it is essential to use a scale in...

Страница 26: ...to the national and local rules in force For the dimensioning follow the instruction in pr EN 13384 In order to prevent during the operation the formation of ice the temperatureof the internal wall of the combustion product evacuation system in all its length has not to be below 0 C For condensation operating conditions of the appliance at the external design temperature it will be necessary to fo...

Страница 27: ...296 370 444 519 593 668 741 889 1037 3 4 3 9 4 4 5 0 5 6 7 8 9 11 17 22 28 34 39 44 50 56 67 78 89 100 111 167 222 277 333 389 445 555 667 778 0 001 0 002 0 003 0 004 0 005 0 006 0 007 0 008 0 009 0 010 0 015 0 020 0 030 0 035 0 040 0 050 0 060 0 070 0 080 0 090 0 100 0 150 0 200 0 250 0 300 0 350 0 400 0 500 0 600 5 0 700 9 0 10 8 12 0 14 4 22 25 29 32 36 54 72 90 108 126 144 180 216 252 288 324 ...

Страница 28: ...nsate collecting manifold and then are evacuated through the chimney Condensate collecting tray smoke manifold Control Panel Burner Siphon Fan Ionization electrode Combustion Chamber H L Thermostat Thermic element Gas valve The MODULEX EXT is made of inter linked modules each module is made of Combustion Chamber Burner Fan Gas valve Local NTC Negative Temperature Coefficient sensor checks the flow...

Страница 29: ...es clearly efficiencies much higher than those obtained in traditional groups of small boilers installed in cascade When the input shared on each thermal element is less than 12 kW one thermal element after the other is automatically excluded and the remaining input is shared on thermal elements having the smallest number of operation hours by the automatic operation time calculating system Modula...

Страница 30: ...ction 230V The electric connections of the boiler are shown in the section named WIRING DIAGRAMS A mains supply of 230 V 50 Hz is required The wiring to the boiler must be in accordance with the current CEI regulations WARNING We remind you that upstream of the electrical connection it will be necessary to foresee a service relay NOT SUPPLIED which when the electrical safety devices ISPESL interve...

Страница 31: ...N L1 L 1 M2 BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE 1 2 3 Y2 4 5 6 7 Y3 1 2 3 Jp1 1 2 3 Y4 4 DL1 DL2 DL3 1 2 3 Y1 4 5 6 A1 SW1 0 10 V Modbus B Modbus A PLC BMS BCM eBUS eBUS 24 V PR IG GREY PINK WHITE WHITE BLACK BROWN BROWN BLACK RED II I O 1 1a 1b SE8 BCM BROWN WHITE BLACK BROWN BLUE BLUE TL TL1 ARANCIO NERO MARRONE PWM BLU TACHO BLU N MARRONE L1 RIL REG ALIM 2...

Страница 32: ...L8 SR2 SR7 RIL REG ALIM 230V ORANGE BLACK BROWN PWM BLUE TACHO BLUE N BROWN L1 BLUE BROWN BLUE BROWN BLUE BROWN RED WHITE WHITE LIGHT BLUE LIGHT BLUE E RIL 2 E RIL8 PINK GREY PINK GREY BLUE BROWN WHITE 2 8 Modules TR ACC 2 TR ACC 8 E ACC 2 E ACC 8 VG2 VG8 BLUE BROWN BLUE BROWN BLUE BROWN RED SL ORANGE ORANGE BROWN WHITE 24 V eBUS eBUS RED BROWN BLACK 0 1 2 3 4 5 6 7 8 9 BROWN BLUE BROWN LIGHT BLUE...

Страница 33: ...8 A9 A10 A11 IV 4 M 2 1 3 n 1 2 3 4 IX L H BUS 50 Hz 230 V 1 2 3 III IMP 0 10V F17 F15 3 1 FBR 1 2 VIII PT1000 F14 F13 1 2 V SPF F12 F11 VF AF KF SPF VF F9 F8 F6 F5 F3 F2 F1 FBR eBUS FA 0 10 V 1 2 I VII 6 7 8 9 10 1 2 3 4 5 N L 1 L 1 1 2 1 Power supply PINK GREY From BCM BLUE BROWN BLACK Terminal II II A1 A2 A3 A4 A5 A6 N L1 L1 M T1 T2 6 7 8 9 10 1 2 3 4 5 N L 1 L 1 1 2 1 II N L1 L2 Neutral conduc...

Страница 34: ...ensor Buf stor tank middle sensor FBR heat circ 1 room sensor Buf stor tank top sensor FBR heat circ 1 set value 1 2 V SPF F12 F11 VF Terminal V V VF SPF Pin 1 Flow sensor heating circuit 1 sensor multifunction 1 Pin 2 Service water low sensor sensor multifunction 2 1 2 VIII PT1000 F14 F13 Terminal VIII F13 F14 Pin 1 Sensor HS2 Solar 2 Multifunction relay 3 Pin 2 Sensor Solar 1 Sensor multifunctio...

Страница 35: ...ION 9 10 outdoor sensor 4 Pump heating circuit 1 AF 1 Flow sensor heating circuit 1 VF 10 I 10 Ground outdoor sensor 4 Collector pump 9 10 outdoor sensor 6 7 Storage tank sensor 4 Pump heating circuit 1 5 Pump heating circuit 2 6 Cylinder charging pump 5 Re circulation pump storage tank 4 5 Flow sensor heating circuit 2 4 Collector pump 1 Flow sensor heating circuit 1 VF 10 I 10 Ground outdoor sen...

Страница 36: ...SE n 5 Re circulation pump storage tank 4 Collector pump INSTALLATION OF A BOILERWITH CONNECTIONTOTWO MIXED ZONES D H W PRODUCTION F Ric C VF VF SPF 1 2 n 4 VF VF VF AF 3 Heating Circuit 1 Heating Circuit 2 Mixing Header Primary system pump Outside Sensor Safety devices kit Filter 9 10 outdoor sensor 4 5 Flow sensor heating circuit 2 6 7 Storage tank sensor 4 Pump heating circuit 1 5 Pump heating ...

Страница 37: ...heating circuit 2 6 Cylinder charging pump SPF AF n 5 Re circulation pump storage tank VF V 2 Hot water tank low Multifunction relay sensor 2 2 PT1000 sensor solar 1 Multifunction relay sensor 4 PT1000 For the connection to a solar installation it is necessary to change some parameters See Table Expert AREA Level SOLAR MF MF 4 FUNCTION 23 4 Collector pump 7 Mixer motor heating circuit 2 OPEN 8 Mix...

Страница 38: ...ulation pump storage tank ATTENTION In this type of installation it is necessary to adjust in the E8 controller the parameter BUS ID HS The external regulator E8 MASTER has to be set to the boiler regulators E8 SLAVES have to be set to 01 to 08 1 Flow sensor heating circuit 1 VF 10 I 10 Ground outdoor sensor 9 10 outdoor sensor 4 5 Flow sensor heating circuit 2 optional 6 7 Storage tank sensor 4 P...

Страница 39: ...ol of heating request temperature set point and modulation level Monitoring of boiler operation and temperature status Alarm control Functional parameters setting Management of the header pump Relay command for running a pump at fixed rate 0 10 analogical output for control of a modulating pump Special functions Emergency it avoids system shutdown caused by an interruption in communication with th...

Страница 40: ... eBUS remoto BCM eBUS eBUS 24 V eBUS remoto BCM modulex 1 Y2 3 4 BCM modulex 2 Y2 3 4 1 2 3 Y2 4 5 6 7 Y3 1 2 3 Jp1 1 2 3 Y4 4 DL1 DL2 DL3 1 2 3 Y1 4 5 6 A1 SW1 eBUS remoto BCM eBUS eBUS 24 V eBUS remoto BCM modulex 3 Y2 3 4 Cascade Manager Cascade Manager Dalla 1a caldaia portare il collegamento eBUS lato HOST BCM su eBUS 2a e 3a etc dopo aver posizonato il selettore di questa su 0 Removed wiring...

Страница 41: ... 1 2 3 Y1 4 5 6 A1 SW1 eBUS remoto BCM eBUS eBUS 24 V eBUS remoto BCM modulex 2 Y2 3 4 Connection for boilers in a cascade arrangement connected to an external BCM optional and managed by PLC BMS E8 disconnected The applications in a cascade arrangement managed with an additional BCM require the correct boiler address setting within the cascade formation via the BCM s internal SWI selector 0 7 all...

Страница 42: ...W1 eBUS remoto BCM eBUS eBUS 24 V eBUS remoto BCM modulex 2 Y2 1 2 Connection for boilers in a cascade arrangement managed by an external PLC E8 disconnected The applications in a cascade arrangement managed with Modbus require the correct boiler address setting within the cascade formation via the BCM s internal SWI selector 1 7 all different and in sequence exactly as requested by the single bur...

Страница 43: ...s preset to 3 for minimum speed 10 Volt for maximum speed These values can be changed according to the type of pump fitted For further information on the 0 10Volt signal please also refer to the pump s manual MODULATING PUMP ON OFF PUMP MODULATING PUMP 1 2 3 Y2 4 5 6 7 Y3 1 2 3 Jp1 1 2 3 Y4 4 DL1 DL2 DL3 1 2 3 Y1 4 5 6 A1 SW1 PUMP BCM eBUS eBUS 24 V N L1 N L1 P N L POWER TERMINALS E8 ALARM Mains s...

Страница 44: ... the system a filling tap has to be foreseen on the system return pipe The filling up can also be made through the draining tap on the boiler return manifold Never use such a tap to drain the system since the system dirt could gather in the boiler and compromise its operation The system itself shall be equipped with its own draining tap whose size depends on the system capacity The application of ...

Страница 45: ...ion CASCA DE MAN 100 Check that the C02 values are within the values indicated in the table Burner pressures If necessary correct the value by turning the adjustment screw A in a CLOCKWISE direction to decrease the va lue and in an ANTICLOCKWISE direction in order to incre ase it 3 1 2 4 WARNING Remove the cap 2 fix red cap 3 to the gas outlet Insert the CO2 analysis probe 4 on hole of the cap Mea...

Страница 46: ...BASIC ADJUSTMENTS Check the C02 values at the minimum and maximum outlet If necessary make the required adjustments To ensure correct operation the C02 values have to be adjusted with extreme care respecting the values indicated in the table Close the sampling test point in the flue outlet terminal Do not force the end switches of the adjusting screw In case of gas valve replacement or difficult i...

Страница 47: ... after that the planned parameters are restored SW NO XXXX CASCATA MANU BOILER 01 00 CHANGE PER CENT VALUE TO 10 BOILER 01 10 VARY THE VALUE FROM 10 TO 100 PER CENT BOILER 01 100 RELAY TEST Turn anticlok wise O displayed pen the operating flap DISPLAY GENERAL After 2 sec is displayed level DATA TIME SERVICE Press to open the level Before open the operating flap turn clock wise Shaft encoder to sym...

Страница 48: ...mostat when it acts it cuts the power supply to the boiler the warning lamp E lights To reset remove the cap and push the reset button Note The switches are positioned under the front panel Note The emergency function enables the boiler s burners to fire only at 50 and at 50 C in system return All the system s heating loads including the header pump must be controlled manually Condensate level sen...

Страница 49: ...hon through the filling hole and check the correct drainage of the condensate If the appliance is used with the condensate drain siphon empty this could cause poisoning caused by the leakage of the flue gasses there are no water leaks all the necessary ventilation conditions and minimum cle arance distances are guaranteed for subsequent servi cing in case the boiler is sited in a cupboard compartm...

Страница 50: ...it cannot be switched ON acci dentally Switch off the gas gate valve upstream the boiler If necessary and in function of the type of work to be carried out close any on off valves fitted on the CH flow and return pipes as well as the cold inlet valve Remove the appliance s front panel After maintenance works have been finished follow the next steps Open the CH flow and return valves as well as the...

Страница 51: ...ce will increase which finally will result in a reduced heat input and consequently a reduced output efore cleaning the boiler body sections check the boiler input and the CO2 percentage see 3 24 Note Areduction of the input can be caused by the obstruction of the evacuation duct or of the air intake Check first of all that this is not the reason If the actual input with the correct CO2 is within ...

Страница 52: ...ciare la molla di fissaggio camera ventilatori lato destro sinistro Remove the red silicone pipe and then the fans room Remove the screws A fixing the burner covers with a 13 mm socket or open wrengh A Screws on thermal elements ...

Страница 53: ...s with 5 mm hex key to reach the holes C left and right C move up the burners block Front Remove gas fittings from the gas manifold with flat key 36 mm Remove the screws gas collector left and right side Remove the four screws with a 36 mm socket wrengh then the gas flange ...

Страница 54: ...ber Compressed air 3rd phase Reassembly Reassemble all the components previously removed by following the reverse order sure to tighten the screws of the mixer fans to the body with torque of 13 Nm CAUTION FOR EACH OPERATION OF MAINTENANCE MUST BE REPLACED THE GASCKETS FOR EACH BURNER Spare code 95251632 GASKETS KIT for BURNER MODULEX EXT 348 900 5 pz 95262961 BURNER KIT MODULEX EXT 348 900 Before...

Страница 55: ...ting Pty Ltd ABN 90 446 545 923 51 Assembly Tullamarine Vic 3043 Australia PO Box 356 Tullamarine Vic 3043 Australia 61 3 9330 3300 61 3 9310 5655 sales automaticheating com au Telephone Facsimile Email www automaticheating com au ...

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