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STHCkW ed 04/09

HERCULES Condensing Export

Technical Documentation

Combustion parameters.

G20

G30

G31

Supply pressure

mbar (mm H

20 (204)

29 (296)

37 (377)

HERCULES Condensing 26 2 E

Gas nozzle diameter

5,70

4,10

Flue flow rate at nominal heat output

kg/h

Flue flow rate at min heat output

kg/h

at Nom Q./Min.

9,40 / 8,90

12,00 / 11,80

10,60 / 10,20

CO with 0% O

at Nom Q /Min.

ppm

200 / 7

670 / 11

270 / 7

with 0% O

at Nom Q /Min.

mg/kWh

57 / 25

187 / 86

69 / 41

Flue temperature at nominal output

°C

Flue temperature at minimum output

°C

HERCULES Condensing 32 2 I / HERCULES Condensing ABT 32 2 I

Gas nozzle diameter

WITHOUT

6,00

Flue flow rate at nominal heat output

kg/h

Flue flow rate at min heat output

kg/h

at Nom Q./Min.

9,40 / 8,90

12,30 / 11,90

10,50 / 10,30

CO with 0% O

at Nom Q /Min.

ppm

206 / 9

640 / 8

190 / 8

with 0% O

at Nom Q /Min.

mg/kWh

83 / 43

276 / 89

99 / 54

Flue temperature at nominal output

°C

Flue temperature at minimum output

°C

Содержание Hercules Condensing 26 2 E

Страница 1: ...HERCULES Condensing 26 2 E 32 2 I Ecological floor standing condensing boiler with stainless steel storage tank HERCULES Condensing 26 2 E 32 2 I ...

Страница 2: ......

Страница 3: ...ement board The new zone management board allows to use the Remote Control optional to control that considered to be the main zone N B The HERCULES Condensing ABT boiler is equipped to manage a high temperature zone example radiators and a low temperature zone example floor radiating panels The tem perature of the flow water onto the low temperature zones can be adjusted on the boiler control pane...

Страница 4: ...ne 1 high temperature system return G 3 4 MA1 Zone 1 high temperature system flow G 3 4 G Gas supply G 1 2 AC DHW outlet G 3 4 AF DHW inlet G 3 4 RC Recirculation G 1 2 optional RP Solar panels return G 3 4 optional MP Solar panels flow G 3 4 optional SC Condensate drain minimum internal diameter Ø 13 mm Key RB2 Zone 2 low temperature system return G 1 optional MB2 Zone 2 low temperature system fl...

Страница 5: ...oning status 8 Flame presence symbol and relative power scale 9 and 7 Primary heat exchanger outlet water temperature 10 Boiler in Stand by 11 Boiler connected to remote control Optional 12 Functioning in summer mode 13 Anti freeze function in progress 14 Functioning in winter mode 15 Functioning with domestic hot water priority active 16 Connection to external tools for technician 17 Display of m...

Страница 6: ...on electrode 17 Detection electrode 18 Venturi 19 Gas nozzle 20 Fan 21 Cold water inlet valve 22 8 bar safety valve 23 Air intake pipe 24 3 bar safety valve 25 D H W expansion vessel 26 System filling valve 27 Condensate drain trap 28 Polyphosphate dispenser optional 29 Domestic hot water probe 30 Storage tank unit draining valve 31 Sample points air A flue gas F 32 Positive signal pressure point ...

Страница 7: ...tat 15 Burner 16 Ignition electrode 17 Detection electrode 18 Venturi 19 Gas nozzle 20 Fan 21 Cold water inlet valve 22 8 bar safety valve 23 Air intake pipe 24 3 bar safety valve 25 D H W expansion vessel 26 System filling valve 27 Condensate drain trap 28 Polyphosphate dispenser optional 29 Domestic hot water probe 30 Storage tank unit draining valve 31 Sample points air A flue gas F 32 Positive...

Страница 8: ...olute 28 Three way valve motorised 29 Venturi positive sign P1 23 Venturi negative sign P2 31 Air gas Venturi manifold 32 System expansion vessel 33 Vent valve 34 Hydraulic manifold 35 Zone 1 pump 36 Zone 1 one way valve 37 Zone 1 by pass 38 D H W expansion vessel 39 Cold water inlet valve 40 Cold water inlet filter 41 Flow limiter 42 Cold water inlet non return valve 43 8 bar safety valve 44 DHW ...

Страница 9: ... 23 Venturi negative sign P2 31 Air gas Venturi manifold 32 System expansion vessel 33 Vent valve 34 Hydraulic manifold 35 Low temp zone one way valve 36 Low temp zone mixing valve 37 Low temperature zone system pump 38 Low temperature safety thermostat 39 Low temp zone flow probe 40 Low temp zone automatic by pass 41 High temperature zone system pump 42 High temp zone one way valve 43 High temp z...

Страница 10: ...es the heat up to the water made to circulate inside the boiler pump 26 The water is introduced directly into the hydraulic manifold 34 and therefore to the system or can be diverted inside the storage tank coil 1 This depends on the position of the motorised 3 way valve 28 which depending on request allows flow towards the system flow and return pipes of the hydraulic manifold 34 or causes divers...

Страница 11: ...RCULES Condensing 32 2 I The first four elements are affected directly by the action of the cylindrical burner applied to the front while the fifth is arranged in the condensation chamber which is separated from the combustion chamber by sheet steel see flue circuit To reduce head losses to a minimum and increase the flow rate available to the system the flow is made up from the parallel connectio...

Страница 12: ...to a motor 1 that causes movement according to necessity Operation When it is necessary to reach the CH or DHW position the motor 1 is activated by the P C B Functioning of the motor leads to the movement of the shut ter 5 at every 180 rotation and compresses CH position or leaves DHW position the shutter contrast spring to release 4 Both the spring 4 and the shutter 5 are situated inside the 3 wa...

Страница 13: ...bar Prevents overheating of the main heat exchanger Automatic air vent valve 6 Allows the automatic expulsion of the gaseous substances that may be present in the boiler circuit It is mounted on the pump flow directly on the hydraulic unit 3 bar safety valve 7 Prevents the safety pressure in the primary circuit from being exceeded 3 bar It is situated in the right side of the boiler and is visible...

Страница 14: ...he composite body 6 N B when re mounting the cartridge pay particular atten tion to correctly insert the two small sheet steel reinforcement plates 5 Pump motor replacement 7 To replace the pump body remove the 4 screws 8 that fix the motor 7 to the composite body 6 Replacement of the automatic air vent valve 9 To replace the air vent valve the relative locking clip must be removed and the valve e...

Страница 15: ...ntral heating position In this way the passage towards the storage tank coil is closed and that towards the hydraulic manifold is opened 1 into which the water from the primary circuit is introduced The hot water is introduced directly into the system through the flow MA1 and return RA1 pipes via the central heat ing pump 4 Thanks to functioning with the two pumps 2 and 4 and the use of an open hy...

Страница 16: ...n that circulating in the boiler To ease the escape of any air bubbles and gaseous substances there is an automatic air vent in the upper part of the hydraulic manifold 2 Safety devices and controls By pass 6 Guarantees circulation in the primary circuit also when the high resistance of the system does not allow it It is mounted between the system flow and return connection pipes System filter 7 I...

Страница 17: ...ate The graphics below represent the trend of the head available to zone 1 system standard depending on pump speed and with the by pass inserted between flow and return Head kPa A B C A Head available to the system with the standard pump 1st zone at maximum speed B Head available to the system with the standard pump 1st zone at speed 4 5 factory setting C Head available to the system with the stan...

Страница 18: ...lic manifold 1 return and to the respective system flow pipe flow into which the primary circuit water is introduced directly The return pipes of zones 2 or 3 are fitted tot he same hy draulic manifold 1 connected to the primary heat exchanger return The functioning of each pump 7 and 10 depends on the functioning request of the respective room thermostats or CAR for zone n º 1 connected to the zo...

Страница 19: ...flow rate The graphics below represent the trend of the head available to system zones 2 and 3 at high temperature depending on pump speed and with the by pass inserted between flow and return Head m H 2 O Head kPa Flow rate Litres h A B C A Head available to the additional zones 2nd and 3rd zone at maximum speed B Head available to the additional zones 2nd and 3rd zone at speed 4 5 C Head availab...

Страница 20: ...ne zone 1 already standard This portion of circuit is envisioned to operate at an ideal temperature for radiator plants fan coils etc It is served by the standard pump and its temperature is ad justed by acting on the boiler control panel low temperature zone zone 2 This portion of circuit is envisioned to operate with floor panel systems It is served by a pump 10 which via a motorised 3 way mixin...

Страница 21: ...Head available to the additional zones 2nd zone at 3 speed standard for HERCULES Condensing ABT N B Regarding the wiring diagram settings signals etc see the Zones digital control unit technical sheet Head available at the additional low temperature zone In functioning condition with mixed systems the use of several pumps guarantees a greater total flow rate to the system The graphics below repres...

Страница 22: ...eady standard This portion of circuit is envisioned to operate at an ideal temperature for radiator plants fan coils etc It is served by the standard pump and its temperature is ad justed by acting on the boiler control panel low temperature zone zone 2 This portion of circuit is envisioned to operate with floor panel systems It is served by a pump 10 which via a motorised 3 way mixing valve 7 int...

Страница 23: ...ition depending on the pre selected temperature from 25 C to 50 C This setting is made on the boiler control panel The temperature of the flow water is obtained by mixing the high temperature circuit flow water and the low temperature circuit return water in variable quantities according to neces sity see hydraulic diagram The control of the correct mixing is entrusted to an NTC probe 12 connected...

Страница 24: ...owing a DHW request the integrated P C B starts the boiler pump 1 and powers the electric 3 way valve motor 2 The consequent shifting of the valve into the DHW position see electric 3 way valve functioning leads to the closure of the hydraulic manifold return pipe and the simultaneous opening of the passage towards the storage tank coil 13 In this way circulation inside the CH system is prevented ...

Страница 25: ...r inlet It can be accessed by opening the lateral door Cold water inlet unit 19 It is situated at the cold water inlet and is fitted to the expan sion vessel 5 and the system filling valve 3 As well as an 8 bar valve 10 that prevents the safety pressure in the storage tank from being exceeded it includes one filter one flow limiter da 30 l min and one one way valve see hydraulic circuit part 9 to ...

Страница 26: ...diagram envisions the use of a control unit 3 that detects the temperature of the storage tank water via a sensor 6 to be positioned in the bulb holder present on the lowest storage tank This leads to shifting the DHW NTC probe 14 in the immersion sample point present on the highest storage tank The control unit 3 controls the pump 2 when the sensor Functioning with solar panels kit optional 14 6 ...

Страница 27: ...bustion agent air The mixture obtained in this way is ignited on the surface of the cylindrical burner 8 by the discharge of the ignition electrodes 9 Gas valve The gas valve is equipped with two main coils controlled by the electric circuit and with a pneumatic unit that modulates the outlet gas pressure in 1 1 ratio to the pressure P1 detected on the inlet of the Venturi pipe The calibration of ...

Страница 28: ...t which through the 4 holes 3 present at its base allow to drag the gas inside and to mix it with the air The nozzle 2 has a different diameter depending on whether natural gas or LPG is used as working with both gases with more or less constant pressure its section establishes the cor rect gas flow rate There are two pressure points at the ends of the Venturi pipe used to detect the inlet P1 and ...

Страница 29: ...ge 4 of the same Note If the igniter must be replaced for correct connection of the ignition electrodes follow the lay out given below otherwise no discharge is obtained Detection electrode 9 It is controlled by the integrated P C B and detected burner ignition It also acts as a flue safety device when any air intake problems or problems with the evacuation of combustion products make the burner f...

Страница 30: ... water present inside the module Loosen the tightening bolts on the system flow and return pipes and of the condensate discharge pipe positioned in the lower part of the module Loosen the two screws 7 and 9 that fix the condensation module to the support back using brackets and sheet steel Loosen the screws 2 positioned above the flue hood and push the stub pipe down 4 in a way to release the flue...

Страница 31: ... G20 4700 rpm GPL 4200 rpm MIN SPEED G20 1260 rpm GPL 1160 rpm MAX TIMER G20 4700 rpm GPL 4200 rpm MIN TIMER G20 1260 rpm GPL 1160 rpm The operation must be performed as follows and with respect to the values stated in the heat output adjustment table connect a differential manometer to the pressure points P1 positive point and P2 negative point found in the upper part of the sealed chamber iin th...

Страница 32: ...e value of carbon dioxide CO2 is within the limits indicated in the table regarding the minimum heat output see table if the values are incorrect take them within the limits by acting on the off set adjusting screws 3 of the gas valve By turning in a clockwise direction the CO2 value decreases by turning in an anti clockwise direction it increases Calibration of the maximum CO2 take the C H temper...

Страница 33: ...n products 5 These directly hit the first three elements 26 2 E or 4 32 2 I of the primary heat exchanger inserted in the sealed com bustion chamber 6 which has a sheet steel section on its base 7 that divides it from the condensation chamber 2 and diverts the flow of combustion products to the outside of the module In this way the flue gases before entering the condensation chamber 2 hit the four...

Страница 34: ...e coupled exclusively to the Immergas condensing boiler The GREEN SERIES flue kit is made in plastic PPS self extinguishing polypropylene suitable for resisting the corrosive action of the acid condensate Configuration with open chamber and fan assisted circulation type B23 for indoor instal lation see figure at the side Using a specific kit the boiler can be installed in the open chamber and fan ...

Страница 35: ...d or Ø 80 flexible For that regarding the head losses relative to each accessory for the various combinations that can be performed see the instructions relative to the intake and exhaust terminals see boiler instruction book Coupling between the various accessories bends extensions terminals is the push fitting type and sealing is assured by relevant silicon lip seals gaskets in EPDM peroxide res...

Страница 36: ...ng flues chimneys technical slots to be used exclusively with a unique Immergas condensing appliance Fit a 90 bend 5 to the appliance exhaust pipe which using the necessary vertical extensions 2 must be connected to the relevant exhaust terminal 1 Coupling of the various accessories envisions as well as fitting with gaskets in EPDM peroxide also fastening using pipe clamps 4 These must be alternat...

Страница 37: ...g with the boiler flue evacuation pipe Using a divided kit 80 80 1 bend 1 m in intake and exhaust with intake grid the maximum length allowed is 30 straight vertical metres System for ducting 80 flexible It is a kit that allows ducting Ø 80 mm of existing flues chimneys technical slots to be used exclusively with a unique Immergas condensing appliance Fit an 87 bend 4 to the appliance exhaust pipe...

Страница 38: ...ional E1 Ignition electrodes E2 Detection electrode E4 Safety thermostat E6 Flue safety thermostat F1 Phase fuse G2 Igniter M1 Boiler pump M2 CH pump M20 Fan M30 Three way valve R9 Return probe resistance S5 System pressure switch S20 Room thermostat optional Super CAR SUPER Comando Amico Remoto remote control optional T1 Boiler board transformer X40 Room thermostat jumper Y1 Gas valve Z1 Anti jam...

Страница 39: ...spark It is placed on the left side of the condensation module Igniter G2 230 V AC circuit Safety devices and controls It detects burner ignition from where the flame is hit It is connected to the detection circuit of the integrated P C B Detection electrode E2 It cuts off the power supply to the circuit when the current absorbed exceeds 3 15A It is inserted onto the integrated P C B Line fuse F1 ...

Страница 40: ...n Shut off It is a resistance that simulates the presence of the system return probe It must always be present Return probe resistance R9 Factor 2 2 kΩ 1 4 W Allows long distance control of the generator SUM WIN selector switch temperature adjustment and indication alarms display reset etc and acts as weekly timer thermostat If the CAR is installed the pre existing X40 jumper must be eliminated Co...

Страница 41: ...t allows the connection of electronic devices e g Immergas zones digital control unit IMG BUS outlet When the safety temperature is exceeded 100 C remove the power supply to the main coils of the gas valve It is positioned on the flow pipe at the outlet of the primary heat exchanger Safety thermostat E4 Klixon thermostat with normally closed contact Guarantees the flow of air in the sealed chamber...

Страница 42: ...ter relay and then the K3 request relay both the coils of the gas valve Y1 The ignition of the burner is detected by the integrated P C B by means of the ionisation electrode E2 Operation with Remote Control In the case of connection to the CAR or Super CAR remote control the boiler automatically detects the device and the symbol appears on the display If the conditions detected by the Remote Cont...

Страница 43: ...of the 3 way valve M30 This functions until the end run switch 2 opens when the DHW position is reached Successively the integrated P C B powers the fan M20 and manages the speed With the consent of the safety thermostat E4 and the flue safety thermostat E6 and the fan M20 reaching the validate ignition speed the integrated P C B allows to start the igni tion cycle by controlling first the ignitio...

Страница 44: ...ump M1 by means of relay K2 after which by diversion of the K4 relay contact it powers the motor M of the 3 way valve M30 This functions until the end run switch 1 opens when the CH position is reached This leads to the power supply of relay K1 positioned on the pump relay board A10 and the consequent power supply of the CH pump M2 If the temperature detected by the NTC flow probe B1 is below the ...

Страница 45: ...ened burner switch off which are closed again when the temperature drops to 75 C Solar function With the DHW OFF parameter on OFF2 DHW set point hysterisis 2 the boiler is prepared to receive pre heated water from a system of solar panels While the water contained in the storage tank is at a tem perature above the DHW set point 10 C the burner and the pump remain off The boiler is kept in the DHW ...

Страница 46: ... func tion Button B It sends the board a signal that allows to release the integrated P C B after the intervention of an anomaly or boiler block signalled with the relative ERR xx error code see errors and anomalies list In the P C B programming mode it allows to exit the configuration menu Button C It sends the P C B a signal that allows to enter the configuration menu and to confirm the adjustme...

Страница 47: ... probe 1 kΩ 25 C It is a resistance that can be varied in an inversely proportional manner to the temperature of the primary circuit flow water It is also used as a limit thermostat on the flow 90 C Flow probe B1 NTC probe 10 kΩ 25 C It is a resistance that can be varied in an inversely proportional manner to the temperature of the water contained in the storage tank Domestic hot water probe B2 NT...

Страница 48: ...ure functioning in DHW and Ch mode the alarm codes that have intervened and the temperature detected by any external probe on the remote control display Super CAR optional It is a unipolar relay that is excited when burner ignition is necessary The electric spark takes place at the ends of the ignition electrodes positioned on the burner due to its contact Igniter relay K7 It is a unipolar relay t...

Страница 49: ... tacts block In the case of dispersion of the detection circuit or anomaly in the flame control that generates a correct ionisation current without the gas valve being open with the duration of at least 20 seconds boiler functioning is blocked To re start the appliance press the Reset button C and then make a central heating or domestic hot water request Parasite flame block If within 10 seconds f...

Страница 50: ...00 C Flow over heating ventila tion The breakage of the DHW outlet probe B2 is signalled by the relative anomaly and prevents functioning in DHW mode but functioning in CH mode is allowed Breakage of the NTC DHW probe B2 The breakage of the return probe resistance R9 is signalled by the return probe anom aly Return probe resistance breakage R9 After burner switch off following an overheating block...

Страница 51: ...C button D Menu entry MENU data confirmation button OK In normal functioning phase the display indicates the func tioning mode In the case shown below as an example the boiler is function ing to satisfy a room central heating request During the request for central heating CH ON appears on the display on the status indicator 6 and at the same time as burner ignition the flame presence indicator swi...

Страница 52: ...r or central heating in order to evacuate residual fumes F5 POSTCIRC Postcirculation in progress Pump in function after a request for domestic hot water or central heating in order to cool the primary circuit P33 EMERGENCY With Remote Control Optional or room thermostat TA Optional in block mode the boiler func tions all the same in CH mode Can be activated using the Customisations menu it allows ...

Страница 53: ...ess the various menu sub levels and it is possible to confirm the choice of the parameters according to requirement Press button C to go back one level The first item of the various options that appears inside the pa rameter is that selected by default NB To access the M5 menu reserved for the technician a three figure access code must be introduced the code is 472 which is carried out by turning ...

Страница 54: ...tions where the anomaly took place Information menu M1 INFO This menu contains the various information relative to boiler operations 1st Level Button 2nd Level Button 3rd Level Button 4th Level Button Description M3 PERS MENU D C P31 DISPLAY D C LIGHT AUTO Default D x selection C The display lights up when the burner is on and when the controls are accessed It remains on for 5 seconds after the la...

Страница 55: ... See page 29 P64 MAX CH P62 MAX SPEED Set the maximum output depending on room central heating The value must be less than or equal to P62 MAX SPEED See page 29 P65 MIN CH P63 MIN SPEED Set the minimum output depending on room heating The value must be less than or equal to P63 MIN SPEED See page 29 P66 T REG PAR P66 A MIN CH T Without the external probe optional it defines the minimum flow temper...

Страница 56: ...t switch on P72 FLOW REG AUTO OFF 8 L M 10 L M 12 L M Independently from the options that can be displayed or set this parameter does not effect boiler functioning FIXED ON AUTO RELE 1 optional RELE1 OFF Relay 1 not used 1 MAIN RELE1 1 In a system divided into zones relay 1 controls the main zone RELE1 2 The relay signals the intervention of boiler block Can be coupled to an external signalling de...

Страница 57: ...respect to the functioning curve set by the external probe See OFFSET on the external probe graphics by modi fying the temperature from 15 C to 15 C P94 SET L T 3 D x select C It defines the flow temperature of the zone number 3 at low temperature With external probe optional present the flow temperature can be corrected with respect to the functioning curve set by the external probe See OFFSET on...

Страница 58: ...2 to 36 ERR from 32 to 36 ERR 22 E22 Return probe anomaly ERR 23 ERR 23 E23 Push button control panel anomaly ERR 24 ERR 24 E24 Insufficient circulation ERR 27 ERR 27 E27 Loss of remote control communication ERR 31 ERR 31 CM E31 CON Low temperature zone 2 probe anomaly ERR 32 ERR 22 E22 Low temperature zone 3 probe anomaly ERR 33 ERR 22 E22 Low temp zone 2 safety thermostat intervention ERR 34 ERR...

Страница 59: ...89 1 0 0 75 0 20 Heat loss at flue with burner On Off 80 60 C 0 04 3 1 0 03 2 90 Central heating circuit max operating pressure bar 3 3 Central heating circuit max operating temperature C 90 90 Max adjustable central heating temperature C 25 85 25 85 Min adjustable central heating temperature C 25 50 25 50 System expansion vessel total volume l 10 8 10 8 Heating expansion tank pre charge bar 1 0 1...

Страница 60: ... 03 2 90 Central heating circuit max operating pressure bar 3 Central heating circuit max operating temperature C 90 Max adjustable central heating temperature C 25 85 Min adjustable central heating temperature C 25 50 System expansion vessel total volume l 10 8 Heating expansion tank pre charge bar 1 0 Total volume domestic hot water expansion vessel l 4 1 Domestic hot water expansion vessel pre ...

Страница 61: ...Min ppm 200 7 670 11 270 7 NOX with 0 O2 at Nom Q Min mg kWh 57 25 187 86 69 41 Flue temperature at nominal output C 78 86 79 Flue temperature at minimum output C 73 82 75 HERCULES Condensing 32 2 I HERCULES Condensing ABT 32 2 I Gas nozzle diameter mm WITHOUT 6 00 6 00 Flue flow rate at nominal heat output kg h 52 47 53 Flue flow rate at min heat output kg h 12 11 12 CO2 at Nom Q Min 9 40 8 90 12...

Страница 62: ...0 0 58 5 9 5 0 4300 0 57 0 40 4 1 0 42 0 32 3 3 0 42 0 44 4 5 4 7 4042 0 53 0 36 3 7 0 40 0 30 3 1 0 39 0 40 4 1 METHANE G20 BUTANE G30 PROPANE G31 HEAT OUTPUT HEAT OUTPUT BURNER GASFLOWRATE PRESS NOZZLES PRESSURE BURNER GASFLOWRATE PRESS NOZZLES PRESSURE BURNER GASFLOWRATE PRESS NOZZLES PRESSURE kW kcal h m3 h mbar mm H2 O kg h mbar mm H2 O kg h mbar mm H2 O 32 0 27520 3 49 1 53 15 6 2 61 1 88 19...

Страница 63: ...cks with filter kit code 3 015854 Polyphosphate dispenser kit code 3 019999 Water network cut off kit code 3 020000 Direct low temperature safety thermostat kit code 3 019869 Condensate drain pump kit code 3 020002 List of dedicated accessories only for HERCULES Condensing 2nd and 3rd additional high temperature zones kit code 3 018838 2nd and 3rd additional low temperature zones kit code 3 020003...

Страница 64: ...n clamps 40 41 of the P C B N B the jumper must not be present when external devices are installed such as TA CAR clock programmer etc Check the effective request from any external devices TA CAR programmer clock See error section 31 No If present zones digital control unit as standard for HERCULES Condensing ABT See section F No See section B Yes The 3 way valve goes into the CH posi tion No See ...

Страница 65: ...o The error 01 appears on the display attendere che la scheda compia 2 cicli di accensione See error section 01 c Yes The error 27 appears on the display Yes See error section 27 The error 02 appears on the display Yes See error section 02 b The error 03 appears on the display Yes See error section 03 b No The boiler reaches and maintains the set central heating tem perature No Check MAX CH parame...

Страница 66: ...pes N B check the presence of Error 38 inside the M1 P19 menu Yes Replace the P C B ERROR 02 Over heating safety thermostat block 02 a The wiring between the safety thermostat and P C B is OK No Restore the electric connection replace the wiring Yes Check replace the safety thermostat If the anomaly persists replace the P C B 02 b The safety thermostat functions regularly intervention temperature ...

Страница 67: ...meter displays a pressure exceeding 0 8 bar No Restore the correct pressure by acting on the system filling valve N B in this case it is always advisable to ensure that there are no leaks in the central heating plant and check the correct factory set value of the expansion vessel Yes The wiring between the absolute pressure switch and the board is OK No Restore the electric connection replace the ...

Страница 68: ... R9 is present on the connector X9 clamps 8 9 of the P C B No Restore replace the electric resistance 2 2 kΩ 1 4 W Yes Replace the P C B ERROR 24 Push button control panel anomaly 24 The buttons on the control panel function regularly check that a click is heard when the button is pressed No Check that there are no keys blocked or jammed under the control panel Yes Replace the display board ERROR ...

Страница 69: ...ostat intervention 34 a The wiring between L T zone 2 safety thermostat and the zones digital control unit connector X12 terminals 3 4 is OK No Restore the electric connection replace the wiring Yes Check replace the L T zone 2 safety thermostat If the anomaly persists replace the zones digital control unit 34 b The L T zone 2 safety thermostat functions regularly intervention temperature higher t...

Страница 70: ...oiler TIMER RT parameter the correct functioning of any thermostatic valves Yes The L T zone 2 NTC flow probe is OK 10 kΩ at 25 C No Replace NTC probe Yes Replace the zones digital control unit ERROR 36 IMG Bus communication loss 36 The zones digital control unit is connected correctly No Check the connection between the boiler P C B clamps 41 44 and the zones digital control unit clamps 41 44 Yes...

Страница 71: ...re present to the clamps 2 3 of connector X1 on the P C B No Replace the P C B Yes The wiring between the 3 way motor and the board is OK No Restore the electric connection replace the wiring Yes The 3 way cartridge functions regularly it is not blocked No Release replace the 3 way cartridge Yes Replace 3 way valve motor D The gas valve is calibrated correctly No Adjust CO2 values to Minimum and M...

Страница 72: ...X11 on the boiler P C B No Check the electric power supply of the boiler P C B and replace it if necessary Yes 230 VAC are present to the clamps 1 2 of connector X11 on the pump relay board No Replace the anti jamming filter Yes 230 VAC are present to the clamps 1 2 of connector X2 on the pump relay board N B Check current continuity between clamp 3 of the pump relay board connector X1 and clamp 1...

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