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35

ERROR LIST

 

Nr.

No. on the PC

Cause

Troubleshooting

A10

10

Internal error

Replace the Slave card.

A11

11

Internal software error

Press the rest button.

A12

12

Internal error

Replace the Slave card.

A16

16

The limit thermostat contact is open with 

the burner off

Connector disconnected or defective.

Limit thermostat defective.

A17

17

Delivery sensor error due to exceeding the 

limit temp.

Check that the flow rate in each unit’s water circuit is 

sufficient.

A18

18

Return sensor error due to exceeding the 

limit temp.

Check that the flow rate in each unit’s water circuit is 

sufficient.

A19

19

Flue gas sensor tripped for overtemper-

ature > 80°C (fan operates at maximum 

speed)

Heat exchange insufficient on the flue gas side in-

side the exchanger.

Clean the flue gas side exchanger.

A20

20

The flame goes out too late after the gas 

valve closes

Check the proper operation of the gas valve.

Replace the gas valve.

A21

21

Internal error

Replace the Slave card.

A22

22

The slave board has generated a type "E” 

error for more than 24 hours

Check the history of "E" type errors

A23

23

Internal clock error

It is an error inside the clock.

Can be caused by a transient power failure.

Perform a manual reset to restore functioning.

A24

24

Fan error

The measured fan speed varies too much with the 

read speed.

Check the fan.

Check the fan's electrical connection.

Replace the fan.

A25

21

Internal error

Replace the Slave card

Nr.

No. on the PC

Cause

Troubleshooting

E33

33

Line and neutral inverted

Restore the correct line-neutral electrical connection

E34

34

Reset button error.

It was pressed more than 7 times in 30 

min.

Wait for the error to disappear.

If the error did not disappear after max 40 min, re-

place the Slave card.

E35

35

Water differential pressure switch error

(contact open)

Check that the flow rate in each unit’s water circuit is 

sufficient.

Replace the water pressure switch (tar.500 lt/h).

E36

36

Internal error

Replace the Slave card.

E37

37

Flame detection error

Clean the electrodes.

Replace the electrode.

E38

38

Flue gas sensor short circuiting

Check the flue gas sensor connector.

Replace the flue gas sensor.

E39

39

Flue gas sensor with contact open

Check the flue gas sensor connector.

Replace the flue gas sensor.

E40

40

The frequency is not 50 Hz

Check the frequency of the electrical network

E41

41

Internal error

Replace the Slave card.

E42

42

Flow sensor in short circuit

Check the delivery sensor connector.

Replace the delivery sensor.

E43

43

Delivery sensor with contact open

Check the delivery sensor connector.

Replace the delivery sensor.

E44

44

Return sensor short circuiting

Check the return sensor connector.

Replace the return sensor.

E45

45

Return sensor with contact open

Check the return sensor connector.

Replace the return sensor.

E46

46

Delivery sensor error due to exceeding the 

limit temp.

Check that the flow rate in each unit’s water circuit is 

sufficient.

E47

47

Return sensor error due to exceeding the 

limit temp.

Check that the flow rate in each unit’s water circuit is 

sufficient.

E48

48

Flue gas sensor error due to exceeding 

the limit temp. (fan turns at max with this 

error).

Check that the flow rate in each unit’s water circuit is 

sufficient.

Clean the water side and flue gas side exchanger.

E49

49

Insufficient or absent earth connection.

Check the earth connection.

Replace the Slave card.

Summary of Contents for Condexa Pro3 230 IN V02

Page 1: ...cod 20060249 rev 10 12 2015 Condexa Pro3 230 345 460 IN EXT EN INSTALLATION INSTRUCTIONS...

Page 2: ...0 4 8 Exhaust flue 10 5 INSTALLATION DIAGRAMS 11 6 ELECTRICAL SYSTEM 12 6 1 Power supply 12 6 2 Electrical connections 12 6 2 1 Connection to mains 12 6 2 2 Master board connection 13 6 2 3 Connection...

Page 3: ...itions specified on the relative slip 9 9The appliance in its original packing may be exposed to temperatures between 4 C and 40 C Do not expose the appliance to bad weather conditions after it has be...

Page 4: ...d from inappropriate disposal likewise making it possible to recu perate the materials it is made of with substantial savings in energy and resources 3 TECHNICAL FEATURES 3 1 Main features Condexa Pro...

Page 5: ...stem includes gas electro valve in B C class for each thermal element with gas flux pneumatic compensation according to the inlet air flow air gas 1 1 ratio ionization electrode for continual flame co...

Page 6: ...changer 2 Burner 3 Pump or 2 way valve 4 Smoke exhaust flue non return valve 5 Jet 6 Venturi tubes 7 Gas valve 8 Gas cock 9 Water return cock 10 Water return manifold 11 Gas manifold 12 Gas pipe 13 Co...

Page 7: ...n tap 7 Pump or 2 way valve 8 Unit Switch 9 Return probe 10 Exhaust flue probe 11 Water differential pressure switch 12 Gas valve 13 Ignition electrode 14 Automatic vent valve 15 Safety thermostat 16...

Page 8: ...or mishandle the identification plates markings and any other making it difficult to safely identify the product 4 2 Installation premises The heating unit must be installed in premises used exclusive...

Page 9: ...ease contact the R Technical Assistance Service for flushing out the water circuit inside the exchanger Do not use incompatible liquid detergents including acids e g hydrochloric acid and similar acid...

Page 10: ...35 2 102 9 9Do not expose the exchanger to cyclic changes in pressure as fatigue stress does a lot of harm to the system compo nents Should the water system suddenly start generating changes in pressu...

Page 11: ...EXT using multiple lines 200 separated Maximum Pipe Length m Installed power kW with 160 with 200 230 60 345 60 460 40 60 575 25 60 690 60 805 55 920 40 1035 35 1150 25 Figure 8 5 INSTALLATION DIAGRA...

Page 12: ...coming out of the heating unit even if unplugged from the power supply 0 0Do not allow people without experience to use the appli ance and switch off the heating unit if the power cable should break...

Page 13: ...and connect the other side of the cable inside the boards panel that is placed inside the equip ment The Figure 12 shows the left jig placed next to the equipment switch on button The connection can...

Page 14: ...of 6 mm and adequate conductor section to connect the terminal board to the relay to be housed in a special external board being careful to fix the latter to its cable guide For example by connecting...

Page 15: ...20 12090 39 6033 58 3216 77 1817 96 1079 17 58719 2 25044 21 11634 40 5828 59 3116 78 1766 97 1051 16 56016 3 24004 22 11199 41 5630 60 3021 79 1717 98 1024 15 53452 4 23014 23 10781 42 5440 61 2928 8...

Page 16: ...ce to work correctly 6 2 9 Connection to alarm device A beeping or visual alarm device to signal any technical faults may be connected outside by a special output with clean con tact on the boiler ter...

Page 17: ...ed because their purpose is to protect the cables from wear that occurs in direct con tact between cable and frame equipment To pass a cable is sufficient to drill the cableguides Once the connection...

Page 18: ...work on the switch located on the right Jumper J17 and for each slave single burner on the Left one Jumper J10 Figure 24 Refer to the table to see the possible combinations of the jump ers J10 that c...

Page 19: ...th the par nr 15 All the fans in the system will work at the set speed this will be displayed on the first digit to the left H maximum speed The other 2 digits will show the flow temperature e g T1 80...

Page 20: ...d ing functions activated by pressing a button or combination of two buttons pressed together Furthermore each button has a specific function depending on the selected user mode Figure 28 BUTTON KEY D...

Page 21: ...e values and operating status of the various circuits Press the button to scroll forward and view the values set for the individual circuits The values listed below will be displayed in succession by...

Page 22: ...oint to the desired value e g 40 C 5 Press OK to memorize the new value 6 After 3 secs the display will return to the display mode with the new setpoint If there is no change after pressing Set esc fo...

Page 23: ...to view and change the user and installer parameters Procedure for accessing the programming mode POS PROCEDURE DISPLAY 1 Manifold delivery temperature T1 e g T1 80 C 2 Press Set esc and OK After 5s t...

Page 24: ...ated for identifying the errors POS PROCEDURE DISPLAY 1 The display starts to flash to indicate one or more errors 1 b Press the address of the first unit will appear on the display alternating with t...

Page 25: ...layed value will stop flashing after 3 sec and will be operative A detailed description of all the parameters and the factory preset values can be found in the Parameter list chapter 9 1 Setting the h...

Page 26: ...int or set a climatic curve on every circuit 3 CH_Priority Heating priority parameter 16 If set to 0 the system will work without heating priority with the high temperature and low temperature circuit...

Page 27: ...is can be set CH_High_Hyst_off Par 20 preset to 3 can be set between 0 and 20 C With the high temperature circuit attenuation parameter Par 21 0 the high temperature thermostat contact is ignored and...

Page 28: ...outdoor temperature can be corrected by varying the value of parameter 39 the permitted limit for the correction is 30 C In this phase it is suggested to use a reference thermometer Preset to 0 4 Sum...

Page 29: ...urner ignition and shut off in the case of a low heat demand The conditions for low load op eration activation is controlled in every Slave card that sends the function activation request to the Maste...

Page 30: ...d is present above 2V and stops below 1 8V Setpoint 10 20 30 40 50 60 70 80 90 Voltage Volt 0 1 2 3 4 5 6 7 8 9 10 Fig 32 The burner ignited when Delivery temp Setpoint_ch_high Par 1 Ch_high_hist_ on...

Page 31: ...card is blocked no 48 and the fan operates for 10 minutes at maximum The Slave card is able to protect the primary exchanger from the hazards of low water circulation both using a flow switch as well...

Page 32: ...230 1 255 Setpoint of power supplied in hot water mode 8 h w max T 60 C 10 C 80 C Max value hot water setpoint 9 h w Priority 0 0 2 Hot water system priority 0 1 Hot water functioning with heating un...

Page 33: ...r valve stand by differential 33 Power control 1 0 1 0 power distributed over min number burners 1 power distributed over max number burners 34 Pump mode 0 0 1 Third pump setpoint 0 Main pump of syste...

Page 34: ...E32 33 Slaves not present Check that the bipolar switches of the individual units are ON Check the addresses on the slave Check the slave BUS connection Replace the Master card Replace the Slave card...

Page 35: ...It was pressed more than 7 times in 30 min Wait for the error to disappear If the error did not disappear after max 40 min re place the Slave card E35 35 Water differential pressure switch error cont...

Page 36: ...36 WIRING DIAGRAMS 12 WIRING DIAGRAMS...

Page 37: ...37 WIRING DIAGRAMS Valvola 2 vie Circolatore...

Page 38: ...34 4 51 6 68 8 kg h Efficiency at rated power 80 60 C 98 6 98 6 98 6 Efficiency at rated power 50 30 C 108 6 108 6 108 6 Efficiency at rated power Tm 50 C 60 40 C 104 2 104 2 104 2 Efficiency at redu...

Page 39: ...ra ture rating P1 83 6 125 4 167 3 kW EFFICIENCY at rated thermal input and at high temperature rating 4 88 74 88 7 88 74 at 30 of rated thermal input and at low tempera ture rating 1 98 1 98 1 98 1 A...

Page 40: ...ling devices to add water to central heating systems Use a manual device instead and record top ups in the system service book 9 9If there are more than one boiler they must all be put into service ei...

Page 41: ...we have seen it is therefore important to avoid two factors possibly leading to the above mentioned processes i e contact between air and water in the installation and regular topping up with fresh w...

Page 42: ...42 WATER IN CENTRAL HEATING SYSTEMS...

Page 43: ...43 WATER IN CENTRAL HEATING SYSTEMS...

Page 44: ...el 0442630111 Fax 044222378 www riello it The manufacturer strives to continuously improve all products Appearance dimensions technical specifications standard equipment and accessories are therefore...

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