Riello TAU 150 UNIT Installation And Maintenance Manual Download Page 68

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TECHNICAL ASSISTANCE SERVICE

CAUSE

SOLUTION

FAULT

Flame not detected

No gas supply

The burner performs pre-ven-

tilation and ignition correctly

but shuts down after about 5

attempts

- Call Technical Assistance

- Make sure gas shut-off cock is

open

Flue blocked

- Check flue

Flame detection error

- Call Technical Assistance

The flame is already lit

- Call Technical Assistance

Air intake obstructed

- Check 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

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 condition of the

fuses

No gas supply

- Make sure gas shut-off cock is

open

Electrical short circuit

- Call Technical Assistance

The burner does not start when

it receives the

control signal

TROUBLESHOOTING

Summary of Contents for TAU 150 UNIT

Page 1: ...INSTALLATION AND MAINTENANCE MANUAL CONDENSING BOILERS TAU 150 210 UNIT...

Page 2: ...ive 92 42 EEC on efficiency requirements and Annex E and Pres Republic Decree n 412 26 August 1993 Electromagnetic Compatibility Directive 2014 30 UE Ecodesign Directive 2009 125 CE for energy related...

Page 3: ...ce 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 exp...

Page 4: ...33 Electrical connections 34 Sensor connections 35 Outdoor sensor connections 36 Filling and draining the system 37 Preparing for first start up 37 TECHNICAL ASSISTANCE SERVICE Initial start up 38 Ch...

Page 5: ...ately that the contents are all present and unda maged Contact the r reseller from whom you purchased the product if you notice any problems bThis TAU UNIT boiler must be installed by a legally qualif...

Page 6: ...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 kW kW kW kW kW RIELLO S p A Via Ing Pilade Riello 737045 Legnago VR ITALY Categoria Categorie Kategorie Kategori...

Page 7: ...EGELT F R KJEL INNSTILT FOR European Directive 92 42 EEC 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 kW kW kW kW kW RIELLO S p A Via Ing Pilade Riello 737...

Page 8: ...t loss in standby mode Pstby W 149 205 Losses from stack with burner off 0 1 0 1 Losses from stack with burner on 0 5 1 9 Noise level sound power LWA at P max dB A 55 60 LWA at P min dB A 45 45 Emissi...

Page 9: ...ctrical kit 20012161 Third mixed zone electrical kit 20011194 CLIMA TOP kit for TAU UNIT 55 210 boilers 20012160 CLIMA COMFORT kit for TAU UNIT boilers 20012157 Cascade cabling kit 20012102 Clip in co...

Page 10: ...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...

Page 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...

Page 12: ...hown in the figure below PUMPS 1 2 3 5 4 SENSORS INSERTED IN THEIR SOCKETS IN THE BOILER Flue gas temperature sensor 1 Safety thermostat temperature sensor 2 CH flow temperature sensor 3 Control tempe...

Page 13: ...ep 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 Functio...

Page 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 Autom...

Page 15: ...ous 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 p...

Page 16: ...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 f...

Page 17: ...el 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 displa...

Page 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 settin...

Page 19: ...entilation 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...

Page 20: ...oint 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 Pres...

Page 21: ...mediately UNPACKING 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 calib...

Page 22: ...le the boiler in the boiler room Pull the front panel towards you then lift it up to remove it Remove the top cover Unscrew the screws 1 securing the boiler to the pallet 2 at the brackets 3 Secure sl...

Page 23: ...e flue is able to withstand the tem perature of the combustion gases and that it has been designed and made in compliance with applicable standards The flue must also be as straight as pos sible seale...

Page 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...

Page 25: ...cuit 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 boile...

Page 26: ...stem 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 w...

Page 27: ...2 119 H mm 269 269 1 Central heating flow 2 1 2 M 2 1 2 M 2 High temperature return 2 M 2 M 3 Low temperature return 2 1 2 M 2 1 2 M 4 Condensate drain siphon 5 Flue gas exhaust 200 200 WATER CONNECTI...

Page 28: ...rage 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 schematic...

Page 29: ...iler 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...

Page 30: ...tralisation unit the top fitting must be connected to the boiler room s waste water drain pit using another section of flexible hose not supplied bThe boiler room s condensate drain pit must be locate...

Page 31: ...limescale forms on the surface of the neutralisation unit replace the entire granulate charge The inlet fitting A of the HN2 neutralisation unit the lower fitting must be connected to the boiler conde...

Page 32: ...ipes have been thoroughly cleaned A filter of suitable particle rating should be installed bThe gas feed line must be suitable for the flow rate demanded by the burner The gas feed system must also be...

Page 33: ...b Caution Do not connect the vent flue directly to exi sting flues used to serve other appliances cookers other boilers etc Larger disused flues can never theless be used as ducts for routing the boi...

Page 34: ...sponsibility 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 fac...

Page 35: ...up additional kits refer to the instructions provided with the kits themselves SENSOR CONNECTIONS SM CH flow temperature sensor SR CH return temperature sensor SB Storage cylinder temperature sensor a...

Page 36: ...n 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...

Page 37: ...e 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 PREPARING FOR INITIAL START UP RI 1 Chec...

Page 38: ...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...

Page 39: ...as its own thermostat leave the manufacturer level parameter 558b2 1 see the Manufacturer level section If an outdoor temperature sensor is installed set instal ler parameter 532 Heating curve slope h...

Page 40: ...itched 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 b...

Page 41: ...his 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 s...

Page 42: ...maximum and mini mum power 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 Unscrew the plug...

Page 43: ...e the combustion parameters should be as specified in the tables below Press V or M to return to normal functioning mode Re check the maximum power calibration Once all adjustments have been made Care...

Page 44: ...ut 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 temper...

Page 45: ...und 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 interval...

Page 46: ...s 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 time...

Page 47: ...tes between 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...

Page 48: ...wn Example E150 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 238 Press the I...

Page 49: ...ensor 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 tem...

Page 50: ...mer thermostat Unit not recognised 73 609 Solar collector sensor error if solar clip in option is installed accessory Valid temperature for solar collector not available Message Check solar clip in ch...

Page 51: ...ervice 105 560 Maintenance message The hours of functioning exceed the number set at the last service Message Service the boiler 105 561 Maintenance message The burner ignitions exceed the number set...

Page 52: ...128 98 No flame during functioning Flame failure during functioning Safety shutdown Check the gas supply and gas valve status check the burner 128 99 No flame during functioning Flame failure during f...

Page 53: ...Message Check the flue gas vent check the temperature sensor check the burner check setting of parameter 591 132 77 Gas feed pressure switch GPS tripped The input has been configured as a switch that...

Page 54: ...g Can be a Message or a Safety Shutdown or a permanent burner lockout with manual reset request Contact Technical Assistance Service 153 259 Lockout caused by unit Generic error or internal error Burn...

Page 55: ...76 Generic error HMI flow temperature is TkSmin Message Installer parameter 503 Check system boiler setpoint 154 477 Generic error HMI flow temperature is TkSnorm Message Installer parameter 505 Check...

Page 56: ...Software error Differential control has exceeded upper threshold 645 Burner lockout permanent Lockout reset required OEM parameter not editable via QAA Contact Technical Assistance Service 169 588 So...

Page 57: ...in parameter setting mode Request for parameter programming via LPB Safety shutdown Check programming mode parameter transfers 184 602 Modem function active Modem function active Message Check whethe...

Page 58: ...of heating period 3 00 00 24 00 hh mm 24 00 16 End of heating period 3 00 00 24 00 hh mm 24 00 DHW program only used in conjunction with a storage cylinder 31 Start of preparation for DHW period 1 00...

Page 59: ...t for CH circuit 1 31 31 K 0 535 PARAMETER FIXED IN THIS MODEL DO NOT CHANGE SETTING 0 629 Maintenance alarm display 0 1 disabled enabled 0 632 Domanda di calore supportata dalla pompa di sistema Q8 P...

Page 60: ...e 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 SE...

Page 61: ...ents in non volatile memory 0 Not permitted 1 Permitted 0 b6b5 DHW filled from own circuit own section system 00 Local 01 Section 10 System 00 b7 Priority required for accessory controller over other...

Page 62: ...f lockout phase 708 Third previous value of internal diagnostic code 709 Fourth previous value of lockout code counter 710 Fourth previous value of lockout phase 711 Fourth previous value of internal...

Page 63: ...e 3 Remove the diaphragm 5 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 valve gas back an...

Page 64: ...ENZIONE Leggere attentamente il libretto istruzioni prima di installare e mettere in servizio l apparecchio Questo apparecchio pu essere installato e funzionare solo in locali permanentemente ventilat...

Page 65: ...ustion chamber is raised by a hydraulic system that also rotates it out of the way and holds it steady while you perform the necessa ry maintenance To fit the cover again repeat the instructions given...

Page 66: ...the cables from the fan and gas valve Remove the five bolts 5 securing the burner to the combustion chamber Remove the burner taking care not to damage the seal 6 The various components gas valve vent...

Page 67: ...ate drain hose and remove the siphon Unscrew the two caps 2 to disassemble the siphon Remove the float 3 and clean all internal components On completion of cleaning follow the above steps in the rever...

Page 68: ...or 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 Assi...

Page 69: ...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 C...

Page 70: ...TECHNICAL ASSISTANCE SERVICE 70...

Page 71: ......

Page 72: ...el 0442630111 Fax 0442630371 www riello it As part of the company s ongoing commitment to perfecting its range of products the appearance dimensions technical data equipment and accessories may be sub...

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