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HERCULES Solar 26 1A

Technical Documentation

M5 Menu (CONFIG)

(an access code must be introduced)

1st Level

2nd Level

Options

Description

Default

value

Value

set by the

technician

SERVICE

(BOIL.PAR.)

P67

(PUMP

MODE)

P67.1

(CONTI-

NUE)

In winter mode the boiler pump and that of the main zone are always

powered and therefore always function

INTERMIT

P67.2

(INTERMIT)

In winter mode the pumps are managed by the room thermostat or by the

remote control

P67.3

(ECO-

NOMY)

In winter mode the pumps are managed by the room thermostat or by the

remote control and by the boiler flow probe

P68

(RT DALAY)

0s ÷ 500s

The boiler is set to ignite the burner immediately after a request for central

heating. In the case of particular systems

(e.g. zone systems with motorised

valves etc.)

it could be necessary to delay switch-on

0 seconds

P69

(ANTICYC)

0s ÷ 255s

The boiler has an electronic timing device that prevents the burner from

igniting too often in the central heating phase.

180 secondi

P70

(CH RAMP)

0s ÷ 840s

The boiler performs an ignition ramp to arrive from minimum power to

nominal heat output.

840 seconds

(14 minutes)

P71

(DHW OFF)

P71.1

(OFF1)

(-2 °C)

Boiler ignition for heating the domestic hot water occurs when the water

contained in the storage tank falls by 2°C with respect to the temperature

set. Boiler switch-off takes place when the temperature reaches a tempera-

ture equal to a set of + 1°C.

OFF 2

P71.2

(OFF2)

(-5 °C)

Boiler ignition for heating the domestic hot water occurs when the water

contained in the storage tank falls by 5°C with respect to the temperature

set. Switch-off takes place when the temperature reaches the set set.

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 device, not supplied)

RELE1.3

The relay signals that the boiler is on

(Can be coupled with an external indicator, not supplied)

RELE1.4

Controls the opening of an external gas valve in concomitance with an ignition

request of the boiler burner

RELE 2

(optional)

RELE2.OFF Relay 2 not used

2 OFF

RELE2.6

Relay 2 activates the remote filling electrovalve

(Optional)

. The control takes

place from remote control.

RELE2.2

The relay signals the intervention of boiler block

(Can be coupled to an

external signalling device, not supplied)

RELE2.3

The relay signals that the boiler is on

(Can be coupled with an external indicator, not supplied)

RELE2.4

Controls the opening of an external gas valve in concomitance with an ignition

request of the boiler burner

RELE2.5

In a system divided into zones, relay 2 controls the secondary zone

RELE 3

(optional)

RELE3.OFF Relay 3 not used

3 OFF

RELE3.7

Check the storage tank recirculation pump

(optional pump)

RELE3.2

The relay signals the intervention of boiler block

(Can be coupled to an

external signalling device, not supplied)

RELE3.3

The relay signals that the boiler is on

(Can be coupled with an external indicator, not supplied)

RELE3.4

Controls the opening of an external gas valve in concomitance with an ignition

request of the boiler burner

P76

(EXT. T.

CORR)

-10°C ÷

+10°C

If the reading of the external probe is not correct it is possible to correct it in

order to compensate any environmental factors

0°C

Содержание HERCULES SOLAR 26 1A

Страница 1: ...HERCULES SOLAR 26 1A Ecological floor standing condensing boiler with stainless steel storage tank integrate with solar circuit HERCULES SOLAR 26 1 A ...

Страница 2: ......

Страница 3: ...The new zone management board allows to use the Remote Control optional to control that considered to be the main zone All hydraulic components of the solar circuit solar expansion vessel solar safety valve pump unit thermostatic mixing valve etc except the solar collector are integrated General features inside the boiler casing The P C B also allows the control of all solar heat circuit parameter...

Страница 4: ...flow G 3 4 optional RB2 Zone 2 low temperature system return G 1 optional MB2 Zone 2 low temperature system flow G 1 optional RB1 Zone 1 low temperature system return G 1 optional MB1 Zone 1 low temperature system flow G 1 optional RA1 Zone 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 output G 3 4 AF DHW inlet G 3 4 RC Recirculation...

Страница 5: ...isplay of boiler functioning status 8 Flame presence symbol and relative power scale 9 and 7 Primary heat exchanger output 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 DHW functioning in COMFORT mode 16 Connection to external tools for technician 17 Display o...

Страница 6: ...ety valve 24 Air intake pipe 25 Safety valve with manometer 26 3 bar safety valve 27 DHW mixing valve 28 System filling valve 29 Shut off valve with thermometer 30 Solar pump 31 Flow meter 32 Domestic hot water probe 33 Condensate drain trap 34 Polyphosphate dispenser optional 35 Domestic hot water expansion vessel 36 Solar system drain fitting 37 Storage tank emptying cock 38 Sample points air A ...

Страница 7: ...int 25 Flue sample point 26 Pressure point ΔP gas 27 Flow probe 28 Safety thermostat 29 Ignition electrode 30 Boiler Pump 31 System pressure switch absolute 32 3 way valve motorised 33 Venturi positive sign P1 34 Venturi negative sign P2 35 Air gas Venturi manifold 36 System expansion vessel 37 Air vent valve 38 Hydraulic manifold 39 Zone 1 pump 40 Zone 1 one way valve 41 Zone 1 by pass 42 Mixing ...

Страница 8: ...p 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 diversion towards t...

Страница 9: ...d losses to a minimum and increase the flow rate available to the system the flow is made up from the parallel connection of the first two elements the return instead is made up from the parallel connection of the last two elements The heat exchanger inlet is connected to the pump flow and the outlet on which the NTC central heating probe is positioned 1 is connected to the primary circuit flow Th...

Страница 10: ...ion thanks 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 shutter 5 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 way cartridge ...

Страница 11: ...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 by opening t...

Страница 12: ...composite body 6 N B when re mounting the cartridge pay particular attention 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 extra...

Страница 13: ...ating 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 heating pump 4 Thanks to functioning with the two pumps 2 and 4 and the use of an open hydraulic m...

Страница 14: ...hat 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 It p...

Страница 15: ...he 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 standard ...

Страница 16: ...eturn 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 to the same hydraulic 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 remote control for zone n º 1 connected to the zone...

Страница 17: ... 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 available t...

Страница 18: ... 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 adjusted 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 introduc...

Страница 19: ...additional zones 2nd zone at speed 3 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 represent the trend of the head available to the low temperature ...

Страница 20: ...tandard 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 adjusted 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 introduces...

Страница 21: ...n 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 necessity see hydraulic diagram The control of the correct mixing is entrusted to an NTC probe 12 connected to t...

Страница 22: ...y 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 upper coil 13 In this way circulation inside the CH system is prevented while it is allowed in the coil 13 which allows the cold water to absorb the heat contai...

Страница 23: ...ater inlet unit 30 It is situated at the cold water inlet and is fitted to the expansion vessel 26 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 from 30 l min and one one way valve see hydraulic circuit part 9 to prevent the consequent pressure increase due to heating of ...

Страница 24: ...s and it will be deactivated when the solar collector cannot transfer heat to the storage tank Functioning with solar collector optional If the intake of solar energy is not sufficient to satisfy requirements prolonged withdrawals little insulation etc and the boiler DHW NTC probe 6 measures a temperature lower than that set the burner is started and the upper coil 5 guarantees the production of D...

Страница 25: ...rate adjuster is present at the input to the pump to be regulated in order to allow a flow rate of the fluid suitable to guarantee excellent heat exchange of the solar system see next page A thermometer 14 is present on the pump output to allow to measure the temperature of the fluid which also acts as an interception cock see next page Solar probe 8 Allows the integrated P C B to detect the tempe...

Страница 26: ...ference for flow rate reading 1 2 3 4 5 6 7 6 10 11 1 4 8 12 9 14 2 13 3 5 1 IN OUT 12 9 8 11 4 5 7 12 6 13 A Head available to the pump group at third speed B Head available to the pump group at second speed B A Head m H 2 O Head kPa Flow rate Litres h Solar pump unit main components and hydraulic diagram Head flow rate graphics The trend of the curve that represents the flow rate head ratio avai...

Страница 27: ...ion 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 the ...

Страница 28: ...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 correct gas flow rate There are two pressure points at the ends of the Venturi pipe used to detect the inlet P1 and outlet P2 signals Using two small silicon pipes these signals are taken respecti...

Страница 29: ...low 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 function below minimum output In this case the flame block due to no detection by the electrode In order to protect the combustion c...

Страница 30: ...e 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 hood from the flange with sample points N B when restoring the co...

Страница 31: ...and P2 negative point found in the upper part of the sealed chamber in this way the pressure difference at the ends of theVenturi pipes P1 P2 is detected and a pressure signal is measured that corresponds to the real flow rate of the air gas mixture at the burner start the boiler in the chimney sweep phase by pressing key C and then check maximum fan speed with burner ignited after about 5 minutes...

Страница 32: ...inimum CO2 when the maximum CO2 has been regulated take the CH temperature selector switch present on the control panel to minimum and check the correspondence of the carbon dioxide CO2 value measured with that indicated in the table for the minimum output see table at the side if the values are incorrect take them within the limits by acting on the off set adjusting screws 3 of the gas valve By t...

Страница 33: ...the sealed combustion 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 flue gases to the outside of the module In this way the flue gases before entering the condensation chamber 2 hit the fourth element 3 of the heat exchanger inside which primary circuit return water runs This cools the combustion products further and...

Страница 34: ... be coupled exclusively to the Immergas condensing boiler The GREEN 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 installation see figure at the side Using a specific kit the boiler can be installed in the open chamber and fan assist...

Страница 35: ...r 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 resist...

Страница 36: ...ues 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 alternated wi...

Страница 37: ...ith 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 wh...

Страница 38: ...30 Three way valve R9 Return probe resistance R14 Solar configuration resistance R15 Solar collector probe resistance S5 System pressure switch S20 Room thermostat optional Super CAR SUPER CAR remote control optional T1 Boiler card transformer X40 Room thermostat jumper Y1 Gas valve Z1 Anti jamming filter common DHW CH Red Red Pink Pink Black White Green Green White White White White White Black B...

Страница 39: ... the end of the withdrawal in progress for the duration of about 10 seconds N B during the self check the boiler remains off Central heating request By pressing the main button boiler activation is enabled By using the button A to select Winter functioning functioning in the CH mode is enabled On closure of the room thermostat contact S20 if the system pressure switch contact S5 is closed pressure...

Страница 40: ...s increased in a way to immediately reach if requested the maximum adjusted value or that necessary to reach the set temperature Successively the flame modulation guarantees maintenance of the flow temperature ideal for the attainment of the set When the temperature measured by the DHW probe B2 exceeds the value requested temperature set the burner is switched off Every time the burner switches of...

Страница 41: ...perature read by the storage tank unit probe B2 drops by 2 C below the temperature set Boiler switch off takes place when the temperature read by the storage tank unit probe B2 is 1 C over the temperature set 2 DHW OFF parameter value OFF 2 Ignition of the boiler for heating the DHW takes place when the temperature read by the storage tank unit probe B2 drops by 5 C below the temperature set Boile...

Страница 42: ...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 Fuse 3 15 AF 250 V It is powered by the integrated P C B when there is a CH or anti freeze request Allows circulation in the CH system CH pump M2 It is a filter connected to the power supply line of the pump relay board which allows to limit the effects of electrom...

Страница 43: ...ter Button A It sends a signal to the board that allows to activate the COMFORT or SAVING function 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 error code 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...

Страница 44: ...e primary heat exchanger Safety thermostat E4 Klixon thermostat with normally closed contact Guarantees the flow of air in the sealed chamber and the escape of combustion products It is powered by the integrated P C B via a signal with square wave detected using a sensor wit Hall effect inserted into the fan which allows the integrated P C B to measure its speed and correct it if it does not compl...

Страница 45: ...ists after 6 check cycles boiler functioning is prevented To re start the appliance press the Reset button C and then make a central heating or domestic hot water request Electro mechanical contacts 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 se...

Страница 46: ...n works for 35 seconds Sealed chamber post ventilation To prevent overheating of the water gas heat exchanger if the boiler temperature detected by the NTC flow probe B1 exceeds 105 C the fan is made to work until the temperature drops below 100 C Flow over heating ventilation The breakage of the DHW outlet probe B2 is signalled by the relative anomaly and prevents functioning in DHW mode but func...

Страница 47: ...T exit menu ESC button D Menu entry MENU data confirmation button OK In normal functioning phase the display indicates the functioning mode In the case shown below as an example the boiler is functioning to satisfy a room central heating request During the request for central heating HEAT appears on the display on the status indicator 6 and at the same time as burner ignition the flame presence in...

Страница 48: ... functions all the same in CH mode Can be activated using the Customisations menu it allows to activate the central heating even if the Remote Control or TA are out of service STOP Reset attempts finished One hour must pass in order to acquire 1 attempt See no ignition block ERR xx Anomaly present with relative error code The boiler does not function see troubleshooting paragraph SET DHWSET During...

Страница 49: ...evels 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 the heating temperature se...

Страница 50: ...ns 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 last ...

Страница 51: ... setting the speed of the fan in RPM 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 optiona...

Страница 52: ...ches the set set 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 signalli...

Страница 53: ...Button 2nd Level Button Description M9 ZONES D C P91 T ZONE 2 D C Displays the current temperature of the low temperature zone number 2 P92 T ZONE 3 D C Displays the current temperature of the low temperature zone number 3 P93 SET L T 2 D C Defines the flow temperature of the zone number 2 at low temperature With external probe optional present the flow temperature can be corrected with respect to...

Страница 54: ...y 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 22 E22 Low temp zone 3 safety thermostat intervention ERR 35 ERR 22 E22 IMG Bus communication loss ERR 36 E...

Страница 55: ...e kPa m H2 O 30 90 3 15 Low temperature zone total head available with 1000 l h flow rate kPa m H2 O 35 30 3 60 Hot water production useful heat output kW kcal h 26 0 22360 Domestic hot water adjustable temperature C 20 60 Domestic hot water circuit flow limiter at 2 bar l min 29 3 Min pressure dynamic domestic hot water circuit bar 0 3 Domestic hot water circuit max working pressure bar 8 0 Speci...

Страница 56: ...60 2 29 3 91 39 9 1 71 3 94 40 2 1 68 5 16 52 7 20 0 17200 2 18 3 58 36 6 1 63 3 61 36 8 1 60 4 74 48 3 19 0 16340 2 07 3 27 33 4 1 55 3 29 33 6 1 52 4 33 44 2 18 0 15480 1 96 2 98 30 4 1 47 2 99 30 5 1 44 3 94 40 2 17 0 14620 1 86 2 70 27 5 1 39 2 71 27 6 1 36 3 58 36 5 16 0 13760 1 75 2 43 24 8 1 31 2 44 24 8 1 28 3 23 32 9 15 0 12900 1 64 2 18 22 2 1 23 2 18 22 2 1 21 2 89 29 5 14 0 12040 1 54 ...

Страница 57: ...perature safety thermostat kit code 3 019869 Condensate drain pump kit code 3 020002 Polyphosphate dispenser kit code 3 020498 Cut off cocks with filter kit code 3 015854 Cut off cocks kit code 3 4297 CP2 flat collector Code 3 019121 CP4 flat collector Code 3 020198 Support frame kit 1 CP2 CP4 Flat Collector on tiles Code 3 019108 Support frame kit 2 CP2 CP4 Flat Collector on tiles Code 3 019109 C...

Страница 58: ...ces TA CAR programmer clock See error section 31 No If digital zones control unit is present See section F No See section B Yes The 3 way valve goes into the CH position No See section C Yes The zone pump starts No See section G DOMESTIC HOT WATER MODE Press the main button and then press button A SUMMER Turn the DHW selector switch to maximum and open the cock N B the Display must show DHW The bo...

Страница 59: ... The error 01 appears on the display wait for the board to make 2 ignition cycles 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 temperature No Check MAX CH parameter and if...

Страница 60: ...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 higher than 100 C No Replace the over heating safety ...

Страница 61: ... the NTC flow probe If the anomaly persists replace the P C B ERROR 10 Insufficient system pressure 10 The boiler manometer 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 Y...

Страница 62: ... 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 27 ...

Страница 63: ...hermostat 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 high...

Страница 64: ...the correct electric power of the appliance 230 VDC 10 Yes The electric power supply connection wires and relative external fuses are integral No Restore the electric connection replace the cables external fuses Yes Replace the P C B ERROR 39 Solar collector probe anomaly 39 The wiring between the solar collector and the PT1000 interface board connector X1 terminals 1 2 is OK No Restore the electr...

Страница 65: ...0 solar collector probe Yes Wait for the temperature measured by the solar collector probe to fall to PAR5 SOLAR section value 20K ERROR 42 High temperature in the storage tank solar part The maximum temperature set on the solar storage tank has been passed Check the correct setting of the PAR 6 SOLAR section parameter standard 80 42 The storage tank collector PT1000 probe functions correctly 1000...

Страница 66: ...resent 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 Maxim...

Страница 67: ...3 of connector 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 VDC are present to the clamps 1 2 of connector X11 on the pump relay board No Replace the anti jamming filter Yes 230 VDC 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...

Страница 68: ......

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