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TECHNICAL ASSISTANCE SERVICE

Error

code via

QAA

Diagnostic

info

Description of error

Type of fault

System action

Procedure

No input code

473

No input code

Message

150

Outdoor temperature

sensor error

Short circuit in outdoor

temperature sensor

Message

Check/replace outdoor

temperature sensor

151

Outdoor temperature

sensor error

Outdoor temperature

sensor faulty

Message

Check/replace outdoor

temperature sensor

142

Boiler sensor 1 error

Short circuit in

temperature sensor B2

Safety shutdown

Check/replace

temperature sensor

143

Boiler sensor 1 error

Temperature sensor B2

faulty

Safety shutdown

Check/replace

temperature sensor

405

Boiler sensor 1 error

Safety shutdown

Check/replace

temperature sensor

406

Boiler sensor 1 error

Safety shutdown

Check/replace

temperature sensor

410

Boiler sensor 1 error

Short circuit in

temperature sensor B2

Burner lockout

(permanent). Lockout

reset required

Check/replace

temperature sensor

411

Boiler sensor 1 error

Temperature sensor B2

faulty

Burner lockout

(permanent). Lockout

reset required

Check/replace

temperature sensor

412

Boiler sensor 1 error

No further differentiation

Burner lockout

(permanent). Lockout

reset required

Check/replace

temperature sensor

413

Boiler sensor 1 error

No further differentiation

Burner lockout

(permanent). Lockout

reset required

Check/replace

temperature sensor

152

Flue gas sensor error

Short circuit in

temperature sensor

Message

Check/replace flue gas

temperature sensor

153

Flue gas sensor error

Temperature sensor

faulty

Message

Check/replace flue gas

temperature sensor

507

Flue gas sensor error

Temperature reading not

plausible

Safety shutdown

Check/replace flue gas

temperature sensor

524

CH flow sensor 2 error

Short circuit in CH 2

temperature sensor

Message

Check/replace

temperature sensor

525

CH flow sensor 2 error

CH 2 temperature sensor

faulty

Message

Check/replace

temperature sensor

546

CH flow sensor 2 error

Short circuit in additional

zone clip-in temperature

sensor (accessory)

Message

Check/replace

temperature sensor

547

CH flow sensor 2 error

Additional zone clip-in

temperature sensor

faulty (accessory)

Message

Check/replace

temperature sensor

144

CH return sensor 1 error

Short circuit in return

temperature sensor (B7)

Safety shutdown

Check/replace

temperature sensor

145

CH return sensor 1 error

Return temperature

sensor (B7) faulty

Safety shutdown

Check/replace

temperature sensor

407

CH return sensor 1 error No further differentiation

Safety shutdown

Check/replace

temperature sensor

408

CH return sensor 1 error No further differentiation

Safety shutdown

Check/replace

temperature sensor

414

CH return sensor 1 error

Short circuit in return

temperature sensor (B7)

Burner lockout

(permanent). Lockout

reset required

Check/replace

temperature sensor

415

CH return sensor 1 error

Return temperature

sensor (B7) faulty

Burner lockout

(permanent). Lockout

reset required

Check/replace

temperature sensor

416

CH return sensor 1 error No further differentiation

Burner lockout

(permanent). Lockout

reset required

Check/replace

temperature sensor

417

CH return sensor 1 error No further differentiation

Burner lockout

(permanent). Lockout

reset required

Check/replace

temperature sensor

146

DHW 1 temperature

sensor error

Short circuit in DHW

temperature sensor (B3)

Safety shutdown

Check/replace

temperature sensor

ERROR TABLE

Содержание 20011771

Страница 1: ...INSTALLATION AND MAINTENANCE MANUAL CONDENSING BOILERS TAU 55 75 110 UNIT ...

Страница 2: ...ot exceeding 70 kW Delegated Regulation EU N 811 2013 Delegated Regulation EU N 813 2013 CONFORMITY RANGE MODEL FUEL CODE TAU 55 UNIT Methane LPG 20011771 TAU 75 UNIT Methane LPG 20011772 TAU 110 UNIT Methane LPG 20011773 ACCESSORIES DESCRIPTION CODE First mixed zone electrical kit 20011764 Second mixed zone electrical kit 20012161 Third mixed zone electrical kit 20011194 CLIMA TOP kit for TAU UNI...

Страница 3: ...ice and to provide comfort in the home for many years to come This manual provides information that is essential to the installation of the appliance Used in conjunction with your own knowledge and expertise it will enable you to install the appliance quickly easily and correctly Once again please accept our thanks and our congratulations on your choice of product Riello S p A ...

Страница 4: ... older systems and systems requiring modernisation 23 Water in heating circuits 24 Water connections 27 Draining the condensate 30 Condensate neutralisation unit 31 Gas connection 33 CH frost protection 34 Flue gas vent and comburent air intake 34 Electrical connections 35 Sensor connections 36 Outdoor sensor connections 37 Filling and draining the system 38 Preparing for first start up 38 TECHNIC...

Страница 5: ...diately that the contents are all present and undam aged Contact the r reseller from whom you pur chased the product if you notice any problems bThis TAU UNIT boiler must be installed by a legally qualified heating engineer On completion of the installation the installer must issue the owner with a declaration of conformity confirming that the instal lation has been completed to the highest standa...

Страница 6: ...A fan safety system that uses a Hall effect speed sensor to continuously monitor fan speed bThe activation of a safety device indicates a poten tially dangerous malfunction in the modulation sys tem Contact r s Technical Assistance Service immediately You may attempt to restart the boiler after a short delay see Preparing for initial start up aNever start the boiler up even for a short period if t...

Страница 7: ...ssure CH system T Temperature η Efficiency NOx NOx class PAESE DI DESTINAZIONE PAYS DE DESTINATION LAND VON BESTEMMING BESTIMMUNGSLAND BESTEMMELSESLAND T067697GE CALDAIA REGOLATA PER CHAUDIERE REGLEE POUR VERWARMINGSKETEL INGESTELD OP KESSEL GEREGELT FÜR KJEL INNSTILT FOR European Directive 92 42 EEC η η η η N 230 V 50Hz W Pms bar T C Qn min Pn min NOx IP P min G20 mbar Qn max Pn max Cod kW kW kW ...

Страница 8: ...iency in central heating mode hs 94 Efficiency at rated heat input in high temperature mode HCV h4 Useful Pn 60 80 C 87 7 89 0 87 8 Efficiency at 30 rated heat input in low temperature mode HCV h1 Useful 30 of Pn 98 9 99 0 98 0 Perdite al camino a bruciatore spento 0 1 0 1 0 1 Losses from stack with burner on 2 3 1 0 2 2 Heat loss in standby mode Pstby W 54 74 107 Annual energy consumption QHE 165...

Страница 9: ...H return G Gas supply Sc Condensate drain MODELS UM TAU 55 UNIT TAU 75 UNIT TAU 110 UNIT Maximum condensation at 100 rated heat output 40 30 C l h 8 3 12 0 14 4 Power supply V Hz 230 50 Electric degree of protection IP X0D Consumption at full load Elmax W 100 100 280 Consumption at part load Elmin W 30 30 84 Consumption in standby mode PSB P sb W 15 15 15 ...

Страница 10: ...L1 N PE RIV L1 1 L 2 N1 3 N 4 PE 5 FILTRO 6 3A C1 L3 C1 N C1 PE C1 L1 C1 L2 M9 M8 M7 M6 M5 M4 M20 M21 M10 M11 M 1 TAC 2 PE 3 DCV PVM 4 5 L1 N PE M1 M2 M3 FI FU Connections to be made by the installer IG PB PI Sb TF Pboiler Pgas Sm SE SCH2 SCH1 VE1 H2 TS Treg A B C D E F G TR1 ER EA Sr Sf L1 L2 PE N L3 L1 L2 PE N L3 PE N L3 TA 230 Vac VG1 230V 50Hz Fan PWM TA Room thermostat low voltage 24V FU Fuse...

Страница 11: ... PE PE PE PE PE PE PE PE M M M M M M M M CL CL CL CL CL CL CL CL G G SCH3 SCH4 DB LPB MB LPB LMU CLIP IN communication card L 230V N 230V L P1 N P1 C val C comun A val NTC 10K NTC 10K SCH5 PI1 VM1 SI1 B1 M Connection schematic for added accessories SCH3 RVS control card SCH4 Room unit control card SCH5 Mixed zone interface card clip in Pl1 Additional mixed zone pump VM1 Mixer valve for additional ...

Страница 12: ...ong periods of disuse b Protect all electrical devices under the pump before you unscrew the inspection cap just in case water comes out a Never run the pump dry Water side pressure drop This TAU UNIT boiler comes without a pump A pump must therefore be provided as part of the installation In order to choose a pump of the right size bear in mind the boiler s water side pressure drop as shown in th...

Страница 13: ...eep mode selection Press and hold keys 3 and 4 for between 3 and 6 seconds to enter chimney sweep mode 7 8 Parameter selection keys 9 10 Value decrement increment keys 11 Info key 12 Display 13 Functioning mode selection button A line appears under the symbols s Automatic the boiler functions according to the set program o Daytime the boiler operates at daytime comfort setpoint l Night time the bo...

Страница 14: ... or CH mode active c Outdoor temperature o Daytime CH mode l Night time CH mode f Flame detected n Error E Small numeric display Displays time parameters and error codes F Central heating modes s Automatic the boiler functions according to the set program o Daytime the boiler operates at daytime comfort setpoint l Night time the boiler operates at night time reduced setpoint b Stand by G DHW mode ...

Страница 15: ...ious modes as shown by the line under the corresponding symbol B1 DHW mode Press the V key to activate and deactivate DHW mode C1 Daytime CH mode D1 Time of day E1 Current boiler temperature F1 Water pressure not used G1 Flame detected H1 Current time bar I1 CH mode active L1 DHW mode active MAIN SCREEN ...

Страница 16: ...l only start up again if the difference between the setpoint and the actual boiler temperature exceeds a predetermined value Notes on functioning The control panel on the TAU UNIT boiler controls the following functions PROGRAMMING LEVELS There are three programming levels End user Installer Manufacturer You must follow a precise set of instructions to access any of these levels The relevant instr...

Страница 17: ...vel Any new settings are not stored in memory 6 I Press this key to exit the installer programming level Any new settings are stored in memory Note 1 If no key is pressed for about 8 minutes the display automatically returns to the main screen Any new settings made will not be saved Note 2 Any changes are saved if you switch to another programming level MANUFACTURER LEVEL Parameters in this level ...

Страница 18: ... key to exit the manufacturer programming level Any new settings are stored in memory Note 1 If no key is pressed for about 8 minutes the display automatically returns to the main screen Any new settings made will not be saved BASIC INFORMATION LEVEL Press the Ikey to enter the basic information level Press the Ikey again to scroll through the values listed below Key Explanation 1 v DHW temperatur...

Страница 19: ...ventilation at pre ventilation level 22 Home run 99 Burner lockout error code displayed Home run Boiler status after reset EXTENDED INFORMATION LEVEL 1 temperatures Press the Ikey Press and hold both D Ukeys for at least 3 seconds Press one of the keys until you reach the required parameter Temperature Nr Characteristic b 0 Control board error code b 1 Boiler return temperature b 2 Not used b 3 Fl...

Страница 20: ...point C 6 Differential control C 7 Reserved C 8 Reserved C 9 Reserved EXTENDED INFORMATION LEVEL 3 assistance Press the Ikey Press and hold both D Ukeys for at least 3 seconds Press the Ukey twice Press one of the keys until you reach the parameter you require Assistance Nr Characteristic d 0 Reserved d 1 Two stage or modulating control setpoint PID d 2 Current boiler setpoint d 3 Room temperature...

Страница 21: ...PACKING THE PRODUCT OPENING 1 Wooden crate 2 Edge protectors 3 Protective bag 4 Boiler 5 Pallet Material supplied in the bag inside the boiler Outdoor temperature sensor Torx key for calibrating combustion parameters Gas change diaphragm TAU 55 75 UNIT models only Plug for control panel Remove the wooden crate 1 Remove the polystyrene edge protectors 2 Pull off the protective bag 3 b Keep all the ...

Страница 22: ... in the boiler room Pull the front panel towards you then lift it up to remove it Unscrew the screws 1 securing the boiler to the pallet 2 Unscrew the screws 1 and remove the bottom rear panel Insert two pipes 3 of suitable length through the top lifting holes so that they protrude equally on both sides Use the protruding lengths of pipe as lifting handles ROTATE LIFT 2 4 3 1 2 HANDLING ...

Страница 23: ...o be as straight as pos sible sealed insulated and not blocked or choked Make sure that the flue is fitted with a condensation drainage union Make sure that the electrical system has been installed by a qualified electrician in compliance with applicable standards Make sure that flow rate head and direction of flow of the pumps are suitable and correct PLACE OF INSTALLATION INSTALLATION IN OLDER S...

Страница 24: ...cal and physical characteristics of water The chemical and physical characteristics of water used in central heating systems must conform to the requirements of EN 14868 standard and to the following tables values for water in system after 8 weeks of functioning General note on water used to top up systems If softened water is used to top up a system 8 weeks of functioning after topping up verify ...

Страница 25: ...rcuit if the quality of water in it conforms to requi rements If the quality of water fails to conform to requirements either recondition the old water or separate the water circuits water in the boiler circuit must conform to requirements 3 Corrosion 3 1 Deposit corrosion Deposit corrosion is an electro chemical phenomenon caused by the presence of foreign bodies sand rust etc in the water mass T...

Страница 26: ...ystem is always kept at a pressure higher than atmospheric pressure at all points including the pump suction side and under all operating conditions precisely because the seals gaskets and joins in a water circuit are designed to resist pressure from within but not to resist a vacuum within ensure that no part of the system is made from materials that are permeable to gases e g plastic pipes with ...

Страница 27: ...oduc tion systems The water fittings have the following specifications TAU 55 75 UNIT TAU 55 UNIT TAU 75 UNIT A 1168 1275 B 414 414 C 455 455 D 149 149 E 42 42 F 617 617 G 793 793 H 1550 1550 1 Central heating flow Ø 1 1 2 M Ø 1 1 2 M 2 High temperature return Ø 1 1 4 M Ø 1 1 4 M 3 Low temperature return Ø 1 1 2 M Ø 1 1 2 M 4 Condensate drain siphon 5 Flue gas exhaust Ø 120 Ø 120 ...

Страница 28: ... 100 5 81 8 300 600 823 1800 65 578 420 409 1459 2 TAU 110 UNIT TAU 110 UNIT 1 Central heating flow Ø 2 M 2 High temperature return Ø 1 1 2 M 3 Low temperature return Ø 2 M 4 Condensate drain siphon 5 Flue gas exhaust Ø 125 ...

Страница 29: ...orage cylinder if present TAU UNIT TAU UNIT 1 Isolating valve 2 Non return valve 3 Pump 4 Expansion vessel 5 Automatic vent valve 6 Safety valve 7 Drain 8 Softener filter Typical water system schematics TAU UNIT basic configuration TAU UNIT configuration with temperature control kit installed 9 Pressure reducer 10 Mixer valve MI1 High temperature system flow RI1 High temperature system return MI2 ...

Страница 30: ...er and from the flue should be channelled to the same drain point b The surface on which the boiler stands must be per fectly horizontal and flat over the entire area of the boiler frame in order to avoid condensate drainage problems b Any condensate neutralisation units deemed neces sary may be connected downstream from the siphon Evaluate the neutralisation unit after one year of operation to es...

Страница 31: ...All connecting hoses must be kept as straight and as short as possible Any curves or sharp bends can lead to the hoses becoming clogged and can therefore pre vent proper condensate discharge NEUTRALISATION UNIT TYPE N2 N2 neutralisation units are designed for systems with boiler condensate drain pits located at a lower level than the boiler condensate drain fitting These neutralisation units do no...

Страница 32: ...nsate discharge Hoses should also be fixed to the floor and suitably protected whenever possible MAINTENANCE The neutralisation unit should be serviced at regular intervals at least once a year or as needs require The frequency of servicing depends on the characteristics of the system When servicing the unit always check the level of the granulate The minimum granulate level is 15 cm below the top...

Страница 33: ...ghly cleaned A filter of suitable particle rating should be installed TAU 55 UNIT TAU 75 UNIT TAU 110 UNIT A 1402 1505 1639 B 141 5 141 5 79 Gas fitting Ø 1 2 M Ø 1 2 M Ø 3 4 M TAU 55 75 UNIT TAU 110 UNIT GAS CONNECTION bThe gas feed line must be suitable for the flow rate demanded by the burner The gas feed system must also be equipped with all the necessary safety and control devices required by...

Страница 34: ...he vent pipes against possible damage TAU UNIT boilers are equipped with a flue gas temperature thermostat as required by European standard EN 677 b Use of a high head fan allows the vent pipes to reach lengths of up to 20 metres b Caution Do not connect the vent flue directly to existing flues used to serve other appliances cook ers other boilers etc Larger disused flues can nevertheless be used ...

Страница 35: ...lity of contact with parts at temperatures above 50 C The manufacturer declines all responsibility for damage caused by failing to ground the appliance adequately or by failure to respect the wiring diagrams provided in this manual TAU UNIT condensing boilers are fully wired in the factory Only the following electrical connections remain to be made mains electricity supply room thermostat outdoor ...

Страница 36: ...he instructions provided with the kits themselves SENSOR CONNECTIONS SM CH flow temperature sensor SR CH return temperature sensor SB Storage cylinder temperature sensor accessory SE Outdoor temperature sensor supplied T reg Connection for temperature controller accessory PB Storage cylinder pump PI1 CH pump ALARM 230 Vac output for burner lockout indicator PWM Not available Proceed as follows to ...

Страница 37: ...minals 20 and 21 in the boiler see diagram on previous page Connect the two wires of the cable to the sensor termi nals Polarity is irrelevant Tighten the nut on the cable guide and fit the cover on the sensor casing b Position the outdoor temperature sensor on a smooth area of wall Prepare a smooth contact area for the sensor casing if the wall is made from exposed brick or other rough material b...

Страница 38: ...he shut off cocks for the water circuit Slowly fill until the pressure gauge reads when cold a value of 1 5 bar Close the central heating circuit shut off cocks Check that the water and fuel shut off cocks are open Check that the water pressure gauge shows a pres sure over 1 bar with the system cold Check also that the water circuit is properly de aerated Check that the expansion vessel is correct...

Страница 39: ...s the system status and the tempera ture measured by the boiler temperature sensor Set the room thermostat to the desired temperature 20 C Press the T key If an outdoor temperature sensor is connected set the room temperature setpoint If no outdoor temperature sensor is connected set the central heating circuit temperature setpoint Press the keys to adjust the setpoint Press any of the keys to exi...

Страница 40: ...has its own thermostat leave the manufacturer level parameter 558b2 1 see the Manufacturer level section If an outdoor temperature sensor is installed set installer parameter 532 Heating curve slope heating circuit 1 as instructed in the section Setting function ing parameters If any boiler ignition or functioning errors are detected the display shows the type of error Errors can be of two types P...

Страница 41: ...nel is switched OFF The room thermostat or timer setting is changed Make sure that all the pumps in the system are free and rotate in the right direction Turn the main power switch OFF and make sure that the boiler shuts down completely Provided all the above conditions are satisfied start the boiler up again then analyse the combustion fumes To do so insert the combustion analysis probe into the ...

Страница 42: ...This function is only active if an outdoor temperature sensor is connected If outside temperature drops below 5 C the pumps are switched on If outside temperature is between 4 and 1 5 C the pumps are switched on for 10 minutes at intervals of 6 hours If outside temperature is above 1 5 C the pumps are switched off If the boiler is not going to be used for an extended peri od of time proceed as fol...

Страница 43: ... press and hold the T and R keys simultaneously for over 6 seconds The boiler enters fan speed control mode Press the Ukey The fan switches to maximum speed Remove the top panel 1 of the boiler and insert the combustion analysis probe into the socket 2 on the flue gas vent fitting Set the CO2 level by turning the adjuster screw 3 on the fan group Turn the screw clockwise to reduce CO2 anti clockwi...

Страница 44: ...e table below are set as shown Press Vor Mto return to normal functioning mode Once all adjustments have been made Carefully screw the plug back on the combustion analysis socket Fit the top panel back on bAdjustments must only be performed by the r Technical Assistance Service 4 CO2 values for functioning at MINIMUM POWER TAU 55 UNIT TAU 75 UNIT TAU 110 UNIT G20 8 5 8 9 9 1 G31 9 4 10 1 10 MINIMU...

Страница 45: ...out the use of a room unit The steeper the slope of the heating curve the higher the flow temperature setpoint at low outdoor temperatures see Manufacturer parameter 532 Heating curves with room temperature setpoint 20 C Tm CH flow temperature Tec Compound outdoor temperature S Slope If the room setpoint is reduced these curves shift downwards Sa 10 C Sa 20 C 20 30 40 50 60 70 80 90 20 15 10 5 0 5...

Страница 46: ...ound outdoor temperature for light duty buildings Compound outdoor temperature is calculated from effective outdoor temperature and attenuated outdoor temperature It is calculated at 10 minute intervals on the basis of effective outdoor temperature and directly determines Summer Winter mode switching par 516 Type of building selected Compound outdoor temperature Heavy duty parameter 558 b1 1 Tec 1...

Страница 47: ...ts you specify whether a room ther mostat or a timer thermostat is connected to the TA terminals In the first case room thermostat the boiler switches off when the contacts open In the second case timer thermostat the reference curve will be that determined by the reduced room temperature setpoint that has just been set SETTING CENTRAL HEATING PARAMETERS If a remote storage cylinder accessory is p...

Страница 48: ... displaying the time display and the error code Press the I key to display the error code on the main display Press and hold the U and D keys simultaneously for 3 seconds The internal error code is displayed Press the I key to access the information level Press the V or Mkey to return to the main screen ERROR CODES ...

Страница 49: ...down Example E154 Press the I key to display the error code on the main display Press and hold the U and D keys simultaneously for 3 seconds The internal error code is displayed Example 435 Press the I key to access the information level Press the V or Mkey to return to the main screen Note Once you have eliminated the cause of the error press S to reset the boiler ...

Страница 50: ...place flue gas temperature sensor 28 507 Flue gas sensor error Temperature reading not plausible Safety shutdown Check replace flue gas temperature sensor 32 524 CH flow sensor 2 error Short circuit in CH 2 temperature sensor Message Check replace temperature sensor 32 525 CH flow sensor 2 error CH 2 temperature sensor faulty Message Check replace temperature sensor 32 546 CH flow sensor 2 error S...

Страница 51: ...om unit room temperature sensor 61 472 Room unit 1 error Room unit waiting to write to write protected parameter Message Check replace room unit room temperature sensor 62 438 Room unit 1 or timer connection error Connection error Message Check connection to room unit timer thermostat Unit not recognised 73 609 Solar collector sensor error if solar clip in option is installed accessory Valid tempe...

Страница 52: ...vice errors CH flow switch input faulty Message Contact Technical Assistance Service 92 491 Electronic device errors Dynamic ignition output faulty Message Contact Technical Assistance Service 95 538 Invalid date Internal LMU clock invalid Message Contact Technical Assistance Service 100 520 Two master clocks found Two master clocks found on LPB connection Message Contact Technical Assistance Serv...

Страница 53: ...switch check the pump 118 536 Water pressure too low inactive Water pressure is below the value set in the dpH2OminPuOn parameter minimum pressure differential after pump start up Safety shutdown Check the water pressure check the system check the pressure switch check the pump 119 139 Flue gas thermostat tripped Flue gas thermostat tripped Burner lockout permanent Lockout reset required Check the...

Страница 54: ...Fan speed below minimum Burner lockout permanent Lockout reset required Check the air pressure switch check the air intake pipe check the fan 129 89 Comburent air system error Fan speed below minimum Safety shutdown Check the air pressure switch check the air intake pipe check the fan 129 90 Comburent air system error Fan speed has fallen below pre purge speed Burner lockout permanent Lockout rese...

Страница 55: ...en interface unit and base unit Message Contact Technical Assistance Service 151 1 Internal control board error Software error or internal error Can be a Message or a Safety Shutdown or a permanent burner lockout with manual reset request Contact Technical Assistance Service 151 Internal control board error Software error or internal error Can be a Message or a Safety Shutdown or a permanent burne...

Страница 56: ...eter not editable via QAA Generic error Check the system Boiler temperature rises too quickly 154 433 Generic error dT is dTkTrSTB 16K Safety shutdown OEM parameter not editable via QAA Generic error Check the system The temperature differential in the boiler is excessive 154 434 Generic error The reset criterion for error 433 has not been reached criterion dT dTkTrSTB Safety shutdown OEM paramete...

Страница 57: ...circuit External error 164 138 Air pressure switch error not used No further differentiation Safety shutdown Check the heating circuit External error 166 81 Air pressure switch does not open not used The air pressure switch does not open Check the contacts for sticking Burner lockout permanent Lockout reset required Check the air pressure switch External error 169 164 Internal error Internal error...

Страница 58: ...ng mode parameter transfers 183 104 Control board in parameter setting mode Mode switched to programming mode PC tool Safety shutdown Check programming mode parameter transfers 183 105 Control board in parameter setting mode Unit in programming mode PC tool Burner lockout permanent Lockout reset required programming mode Check programming mode parameter transfers 183 279 Control board in parameter...

Страница 59: ...t of preparation for DHW period 1 00 00 24 00 hh mm 06 00 32 End of preparation for DHW period 1 00 00 24 00 hh mm 22 00 33 Start of preparation for DHW period 2 00 00 24 00 hh mm 24 00 34 End of preparation for DHW period 2 00 00 24 00 hh mm 24 00 35 Start of preparation for DHW period 3 00 00 24 00 hh mm 24 00 36 End of preparation for DHW period 3 00 00 24 00 hh mm 24 00 45 Standard programs fo...

Страница 60: ...D IN THIS MODEL DO NOT CHANGE SETTING 82 516 THG Automatic Summer Winter switching temperature THG 30 C switching disabled 8 30 C 20 520 PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING 10 532 Slope for heating circuit 1 1 40 25 533 PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING 15 534 Change room temperature setpoint for CH circuit 1 31 31 K 0 535 PARAMETER FIXED IN THIS MODEL DO NOT CHAN...

Страница 61: ...re setpoint boiler temperature par 517 the minimum pause time after burner shutdown is interrupted 0 90 K 30 519 External design temperature 50 20 C 5 520 PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING 10 532 Slope for heating curve 1 1 40 25 533 PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING 15 534 Room temperature setpoint adjustment for CH circuit 1 31 31 K 0 535 PARAMETER FIXED IN TH...

Страница 62: ... own section system 00 Local 01 Section 10 System 00 b7 Priority required for accessory controller over other predefined external output 0 1 priority no yes 0 605 LPB address 1 606 LPB section 0 608 PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING 48 5 TAU 55 34 TAU 75 25 TAU 110 609 PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING 13 5 TAU 55 15 5 TAU 75 12 TAU 110 610 PARAMETER FIXED IN TH...

Страница 63: ...nostic code 709 Fourth previous value of lockout code counter 710 Fourth previous value of lockout phase 711 Fourth previous value of internal diagnostic code 712 Fifth previous value of lockout code counter 713 Fifth previous value of lockout phase 714 Fifth previous value of internal diagnostic code 715 Current value of lockout code counter 716 Current value of lockout phase 717 Current value of...

Страница 64: ...gas valve 1 from the venturi assembly 2 Remove the diaphragm 4 from the gas valve and fit the one supplied The table alongside shows the diaphragm diameter required for the different gas types and boiler models Fit the gas valve back and perform the necessary calibrations as instructed in the section Calibrating combustion parameters on page 45 b The following pressures are required from the gas s...

Страница 65: ...ness 13 Fit the new gas diaphragm 16 and O ring 15 in the seat of the Venturi body Fit the LPG valve 17 and fix it in place with the screws provided 18 Fit the Venturi body back in the boiler and fix it in place with the screws 11 Connect the gas feed pipe and tighten the ring nut 10 Fit the comburent air hose 9 and tighten the hose clamp 8 Connect up the new wiring harness 19 plugging the relevan...

Страница 66: ...Leggere attentamente il libretto istruzioni prima di installare e mettere in servizio l apparecchio Questo apparecchio può essere installato e funzionare solo in locali permanentemente ventilati in conformità alle normative vigenti Laterale DX 068786_1_E4 G20 20 mbar G31 37 mbar 7 For all models Adjusting the gas pressure switch To ensure correct boiler functioning adjust the pressure switch for m...

Страница 67: ...settings must be restored and combustion fumes analysed to verify correct functioning MAINTENANCE REMOVING THE BURNER Proceed as follows to remove the burner Remove the front panel and the top panel from the boiler Unscrew the nut 1 securing the gas feed pipe to the gas valve 2 Loosen the hose clamp 3 and remove the air intake pipe 4 Pull the hose 5 off the pressure measurement union on gas valve ...

Страница 68: ...ed or worn POSITIONING THE ELECTRODES Remove the front panel from the boiler and locate the condensate drain siphon 1 Remove the split pin 2 detach the corrugated con densate drain hose and remove the siphon Unscrew the two caps 3 to disassemble the siphon Remove the float 4 and clean all internal components On completion of cleaning follow the above steps in the reverse order to refit all removed...

Страница 69: ...for blockage The burner shuts down during pre ventilation Gas valve feeds too little gas Gas valve faulty Weak or no ignition arc Check gas supply pressure Call Technical Assistance Call Technical Assistance Air in gas line Bleed the gas feed circuit The burner shuts down after pre ventilation because the flame fails to ignite No electrical power Check voltage at gas valve ter minals Check the con...

Страница 70: ...al wiring No water supply Check the vent and bleed valves Check CH circuit pressure Burner locks out Fumes escaping into the air Check that the burner body is clean Check that the flue pipes are clean Check the condition of the boiler seals Check the quality of combustion There is a smell of fumes Leaks from the supply circuit Check that all joints are tight and that the pressure measurement point...

Страница 71: ...TECHNICAL ASSISTANCE SERVICE 71 ...

Страница 72: ...37045 Legnago VR www riello com The manufacturer strives to continuously improve all products Appearance dimensions technical speciﬁcations standard equipment and accessories are therefore liable to modiﬁcation without notice Cod 20015335 ...

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