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GENERAL

5

Do not allow children or infirm persons to operate 
this 

g

 boiler unsupervised.

Do not operate any electrical devices or equipment, 
including switches or domestic appliances, etc., if you 
can smell fuel or fumes. If you detect any suspicious 
smells:

  -  Ventilate the room by opening all doors and win-

dows;

  -  Close the fuel shut-off cock;
  -  Report the fault immediately to the 

r

 Technical 

Assistance Service or a professionally qualified hea-
ting engineer.

Do not touch the boiler while barefoot or wet.

Never clean or service the boiler without first discon-
necting it from the mains electricity supply by tur-
ning the main power switch off and turning the main 
function selector to OFF (

I

).

Do not tamper with or adjust the safety or control 
devices without prior authorisation and instructions 
from the boiler’s manufacturer.

Never pull, disconnect, or twist the electrical cables 
coming from the boiler even if it is disconnected 
from the mains electricity supply.

Do not obstruct or restrict the vents in the room 
where the boiler is installed. Adequate ventilation is 
essential for correct combustion.

Do not expose the boiler to the elements. Do not 
install the boiler outdoors. It is not designed to work 
outdoors and is not fitted with the necessary auto-
matic frost protection systems to do so.

Do not switch the boiler off if outdoor temperature 
drops below ZERO (risk of freezing).

Do not store flammable substances or packaging in 
the room where the boiler is installed.

Do not dispose of packaging material into the envi-
ronment, or leave it within the reach of children, 
since it can become a potential hazard. Dispose of 
packaging material in compliance with applicable 
legislation.

The operation of any appliance that uses fuel, electrical power and water demands that a number of fundamental safe-
ty precautions be respected. In particular:

The boiler is delivered in a single crate. Check 
that the appliance is complete and undamaged as 
soon as you receive it. Report any discrepancies or 
damage to the 

r

 dealer who sold it.

This 

g

 boiler must be installed by a legally qua-

lified installer. On completion of the installation, the 
installer must issue the owner with a declaration of 
conformity confirming that the installation has been 
completed to the highest standards in compliance 
with the instructions provided by 

r

 in this instruc-

tion manual, and that it conforms to all applicable 
laws and standards.

The boiler must only be used for the purpose speci-
fied by 

r

 and for which it is designed. The manu-

facturer declines all responsibility, contractual or 
other, for damage to property or injury to persons or 
animals caused by improper installation, adjustment, 
maintenance or use.

If you notice any water leaking from the boiler, shut 
off the water supply and notify your local 

r

 

Technical Assistance Centre or a qualified heating 
engineer immediately.

Periodically check that working pressure in the hea-
ting circuit is 

over 1 bar

 but below the maximum limit 

specified for the appliance. If this is not the case, 
contact 

r

’s Technical Assistance Service or a 

professionally qualified heating engineer.

If the boiler is not going to be used for an extended 
period of time, perform at least the following opera-
tions:

  -  Turn the appliance’s main function selector to posi-

tion (

I

) “Off”

  -  Turn the main power switch OFF
  -  Close the fuel cock and heating circuit water cock
  -  Drain the central heating circuit if there is any risk of 

freezing.

The boiler must be serviced at least once a year.

This instruction manual is an integral part of the boi-
ler. It must be kept safe and must ALWAYS accom-
pany the boiler, even if it is sold to another owner or 
transferred to another user or to another installation. 
If you damage or lose this manual, order a replace-
ment immediately from your local 

r

 Technical 

Assistance Centre.

GENERAL SAFETY INFORMATION

PRECAUTIONS

Summary of Contents for Tregi 3/100 NK

Page 1: ...INSTALLATION USER OPERATION MAINTENANCE AND SYSTEM MANAGEMENT MANUAL CAST IRON BOILERS g N g NK...

Page 2: ...ctions of the Electromagnetic Compatibility Directive 2004 108 CE and Low Voltage Directive 2006 95 CE 0694 MODEL CODE g 3 N 4040719 g 4 N 4040720 g 5 N 4040721 g 6 N 4040722 g 7 N 4040723 g 8 N 40407...

Page 3: ...rised r Technical Assistance Centre Their personnel are specially trained to keep your boiler efficient and cheap to run Technical Assistance Centres also stock any original spare parts that might be...

Page 4: ...ion in older systems and systems requiring modernisation 25 Water connections 25 Fitting the casing panels 29 Wiring 31 Combustion gas exhaust 34 Filling and emptying the system 35 TECHNICAL ASSISTANC...

Page 5: ...ected In particular bThe boiler is delivered in a single crate Check that the appliance is complete and undamaged as soon as you receive it Report any discrepancies or damage to the r dealer who sold...

Page 6: ...ened completely to facilitate the inspection maintenance and cleaning of internal parts and to speed up servicing in general If equipped with an optional total shutdown control card r g boilers can im...

Page 7: ...Automatic vent valve 3 Non return valve 4 Storage cylinder pump 5 Storage cylinder drain cock 6 Boiler sensor socket 7 Burner 8 CH drain cock 9 Storage cylinder 100 l 10 Boiler body 11 Casing 12 Dome...

Page 8: ...4 Boiler sensor socket 5 Burner 6 CH drain cock 7 Storage cylinder 60 l 8 Automatic vent valve 9 Storage cylinder pump 10 Boiler body 11 Casing 12 Domestic hot water outlet 13 Magnesium anode 14 Stora...

Page 9: ...thermostat Allows you to set the temperature of the central heating water 4 Electrical power indicator green Lights to show that the boiler is receiving electrical power 5 Burner lockout indicator red...

Page 10: ...indicator green Lights to show that the boiler is receiving electrical power 5 Burner lockout indicator red Lights to show that the burner lockout has tripped 6 Summer I Winter II selector 7 Storage c...

Page 11: ...ner lockout indicator TS Safety thermostat 110 C 0 6 TR Boiler control thermostat 33 82 C 3 FU Mains power fuse 6 3 A T CO1 CO1A Multi connectors MO1 Terminal strip MB 7 pin burner connector PI Centra...

Page 12: ...kout indicator LV Mains power indicator CO1 CO1A Multi connectors CO2 CO2A Multi connectors MO1 Terminal strip MB 7 pin burner connector TB Storage cylinder thermostat 0 70 C 3 TL1 Maximum temperature...

Page 13: ...ecks Make sure that the performance of the old burner is adequate for the requirements of the boiler Make sure that the length and diameter of the bur ner s blast tube are suitable for the boiler s co...

Page 14: ...Pilade Riello 7 37045 Legnago VR ITALY T067676GE Mod Cod N Qn max kW Pn max kW bar Pms RIELLO S p A Via Ing Pilade Riello 7 37045 Legnago VR ITALY PAESE DI DESTINAZIONE PAYS DE DESTINATION BESTIMMUNG...

Page 15: ...3 1 2 1 0 0 9 0 78 0 70 Flue gas temperature T 140 196 202 C Maximum flue gas flow rate gas oil 0 010 0 013 0 017 0 020 0 024 0 027 0 033 0 037 Kg s Furnace pressure Minimum 0 03 0 12 0 17 0 26 0 33 0...

Page 16: ...55 63 22 31 dm3 Total surface area for heat exchange 0 93 1 30 1 67 2 04 2 41 2 78 0 93 1 30 m2 Volumetric heat load 1656 1582 1582 1562 1550 1522 1656 1582 kW m3 Specific heat load 25 7 24 2 24 1 23...

Page 17: ...heating circuit is over 1 bar but below the maximum limit specified for the boiler If this is not the case contact r s Technical Assistance Service Set the room thermostat to the required temperature...

Page 18: ...of the flame If you are going to be away for a short period of time like a weekend or a short holiday etc and outdoor tempera tures are above ZERO proceed as follows Turn the function selector to OFF...

Page 19: ...ve procedure 20 40 60 80 100 0 120 Use a cloth damped in soapy water to clean the boiler s external casing To remove stubborn marks use a cloth damped in a 50 mix of water and denatured alcohol or a s...

Page 20: ...EL UNDERTAKE PERIODIC MAINTENANCE AND COMBUSTION EFFICIENCY MEASUREMENTS r s Technical Assistance Service is qualified to satisfy these legal requirements and can also provide useful information on MA...

Page 21: ...ered in 3 boxes on a single pallet and are further protected by a nylon film 1 The BOILER BODY box to which the documentation envelope A is attached also contains Instruction manual Warranty certifica...

Page 22: ...C OVERALL DIMENSIONS AND WEIGHTS DESCRIPTION MODEL g N 3 4 5 6 7 8 9 10 A Width 450 mm B Height 850 965 mm C Overall depth 490 590 690 790 890 990 995 1095 mm D Depth 460 560 660 760 860 960 mm E 290...

Page 23: ...ION MODEL g NK 3 100 4 100 5 100 6 100 7 100 8 100 3 60 4 60 A Width 600 450 mm B Height 1470 1510 1470 mm C Overall depth 580 690 790 890 990 580 mm D Depth 550 660 760 860 960 550 mm E 290 mm Net we...

Page 24: ...two 3 4 diameter pipes 1 through the lifting holes 2 in the boiler body bWear suitable personal protective equipment and use suitable safety devices aDo not dispose of packaging material into the envi...

Page 25: ...nd the tem perature of the combustion gases and that it has been designed and made in compliance with applicable standards The stack must also be as straight as possi ble sealed insulated and not bloc...

Page 26: ...67 189 mm MI CH flow 1 1 4 F RI CH return 1 1 4 F US DHW outlet 3 4 M RC DHW recirculation 3 4 F ES domestic cold water inlet 3 4 M ES RC US MI RI g 60 NK A A B C D E F IMPORTANT To avoid damage to th...

Page 27: ...production g NK bThe domestic hot water circuit must include an expansion vessel of adequate capacity as well as a safety valve max 6 bar connected directly to the storage cylinder HEATING RETURN HEA...

Page 28: ...filled with anti freeze must be fitted with water disconnectors bIf needed water supplies and recovery circuits must be conditioned by suitable treatment systems See the table for applicable referenc...

Page 29: ...sive aluminium foil tape 4 supplied with the casing Remove the top nut 5 from the storage cylinder flan ge and fit the casing support bracket 6 Replace the nut 5 on the flange but do not tighten yet F...

Page 30: ...nto the shorter sensor holder and the TB storage cylinder thermostat 2 into the longer sensor holder Take care to push the sensors all the way into their sockets The socket for the TB thermostat senso...

Page 31: ...ntrol panel see the diagram on pages 11 12 This must be done by the heating engineer or a qualified electrician Proceed as follows to access the control panel terminal strip Remove the front and top p...

Page 32: ...trip 6 7 8 9 10 11 L1 PE TA TA 1 2 3 4 5 N L1 PE TA TA 1 2 3 4 5 N L1 PE N TA TA L1 PE 1 2 3 N PI 230V 50Hz E PB 1 2 3 L1 Live N Neutral PE Earth ground TA Room thermostat PI Central heating pump not...

Page 33: ...f the casing through the slot 1 On completion of the electrical connections replace all removed components in the opposite order aIt is strictly forbidden to use fuel and or water pipes to ground the...

Page 34: ...cal standards assu ming zero pressure at the connection to the flue gas exhaust bInadequate or badly dimensioned stacks and exhausts can increase combustion noise cause condensation problems and affec...

Page 35: ...cilitate filling the slot in the screw must be perpendicular to the direc tion of flow Open the shut off cocks for the water circuit Slowly fill the system to a cold pressure of 1 5 bar Close all prev...

Page 36: ...lose the shut off cocks for the water circuit Connect plastic hoses 5 to the hose unions on the boiler drain cock 1 and or storage cylinder drain cock 2 NK models NOTE Open the non return valve 3 to f...

Page 37: ...een correctly installed and connected 20 40 60 80 100 0 120 Once you have completed all the preparatory steps proceed as follows to start up the boiler for the first time Set the room thermostat to th...

Page 38: ...about 30 seconds before resetting the burner To reset the burner press the red button light on the burner The complete ignition cycle will be repeated up to the ignition of the flame bNo warning signa...

Page 39: ...from position II to I and back The room thermostat or timer setting is changed Make sure that the pump is free and rotates in the right direction Turn the main power switch OFF and make sure that the...

Page 40: ...e going to be away for a short period of time like a weekend or a short holiday etc and outdoor tempera tures are above ZERO proceed as follows Turn the function selector to OFF I and make sure that t...

Page 41: ...ce keeps con sumption and emissions down and ensures that the boiler continues to operate reliably over time Have your boiler serviced either by r s Technical Assistance Service or by a qualified heat...

Page 42: ...oth damped in a 50 mix of water and denatured alcohol or a suitable cleaning product Carefully dry the boiler after cleaning aDo not use abrasive products petrol or triethylene Internal Proceed as fol...

Page 43: ...flange 5 in place and remove the flange Clean inside the domestic hot water cylinder and remove any residues through the access hole Check the magnesium anode 6 for wear and replace it if necessary Ch...

Page 44: ...The boiler does not reach its temperature setpoint Control thermostat problem No water supply Air in the circuit Check the circuit pressure Check the vent valve The boiler enters temperature safety l...

Page 45: ...blem Check the efficiency of the expansion vessel The storage cylinder safety valve keeps opening DHW pump problem Check unseize the pump Check the electrical connection between the pump and the contr...

Page 46: ...46...

Page 47: ......

Page 48: ...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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