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13

 

1.18 

Gas side resistor, temperature of output flue 
gases

0,10

0,40

0,90

1,10

1,30

1,50

0,70

10

20

30

40

50

60

80

70

15

25

35

45

65

55

Gas side resistance (mbar

)

Full Load

Heat Output (kW)

Part Load

100

130

180

200

220

160

10

20

30

40

50

60

70

80

90

100

Exit flue gas temperature (°C)

Load (%)

1.19 

User instructions

Heating system

In the heating system, the difference between the direct supply 

temperature and the water return temperature should not ex-

ceed 20°C. The temperature of the return water should higher 

than 50°C. Use the boiler's protection pump to raise the tem-

perature of the return line water. Regularly measure the system's 

water level and add water if it is too low. Before adding water to 

the system, stop the system and wait for the water temperature 

to reach 40°. Check for and resolve any problems due to leaks in 

the boiler or in the system.

The hydraulic system should be carried out by qualified person-

nel to meet European standards.

For the system use material complying with European stand-

ards.

Connections to the electrical system and fuel delivery system

All the electrical connections should only be carried out by qual-

ified professional using only materials and assembly procedures 

that comply with regulations in force in the country where it is 

used. For the burner, the control panel, Ecopanel etc., read the 

instructions and warnings carefully in the instruction manuals 

supplied by the manufacturer or distributors. Do not switch on 

the burner until the circulation has started inside the boiler. If 

the circulation pump or the protection pump are faulty, switch 

off the burner. The system should work in a coordinated man-

ner.

The circulation pump should always be operating when the 

burner is running. Choose a protection pump that is adequate 

for the boiler output. Connect the pump to the collectors, to the 

valve and to the thermostat correctly. In this way the system 

can switch off once the pre-set temperature has been reached. 

When faced with any fault (contactor, temperature swings, 

interruption of current, other faults), or when the pumps are 

stopped (protection pumps, etc.) the burner should switch off. 

The system should do this automatically.

Carry out the electrical wiring taking into account all the 

above-mentioned information.

1.20 

Conveyance and discharge of the boiler 
water

Discharge of the boiler water

 

9

Switch off the boiler before emptying the boiler and let it 

cool. 

To empty the boiler, open all the valves of the circuit and the 

radiators. All the system water should be discharged by drain-

ing the boiler, when the latter is in the lower part of the system 

itself. If a part of the heating system is below the boiler room, 

the process for draining the water can be carried out at a point 

situated in the lower part of the system.

Supplying the boiler with water

To fill the boiler with water use the tap upstream of the boiler, 

during the charging of the boiler all the valves of the hydrau-

lic piping and radiators should be open. To prevent air infiltra-

tion, carry out this operation slowly opening the plug at the top. 

When water comes out of this plug it means the process has 

finished. Bleed the air from all the radiators. 

 

9

Do not fill the boiler with water when the boiler is hot. This 

could damage the elements

 

9

The quality of the water should correspond to that indicated 

in "1.9 Hydraulic system" a pagina 9

1.21 

Instructions for disposing of the product 

Cast iron boilers have been used for many years in conformity 

with the specifications of the materials they are made and are 

appliances that are built to last.

The life expectation for these type of appliances, as stated in the 

legal documentation, is 15 years.

As a result their replacement generally occurs for technological 

reasons.

The cast iron boilers made with the following materials and 

which can be disposed of are as follows:

Cast iron body (Grey Cast Iron 

Alloy) 

Using companies that handle 

iron waste and companies 

that deal with smelting cast 

iron

Steel parts of the piping and 

the casing

Using companies that handle 

iron waste

Other Metal Parts 

Using companies that handle 

iron waste

Thermal ceramic and other 

insulating materials

With normal waste

NOTA: 

For more information please contact an authorised deal-

er

Summary of Contents for RTT 29

Page 1: ...cod Doc 0079317 rev 0 03 2016 RTT 29 79 EN INSTRUCTIONS FOR THE INSTALLER AND FOR THE TECHNICAL ASSISTANCE CENTRE...

Page 2: ...cally capable of carrying out routine maintenance keep it running at maximum efficiency with low running costs and which has original spare parts if required This instruction booklet contains importan...

Page 3: ...Instructions for use 13 1 20 Conveyance and discharge of the boiler water 13 1 21 Instructions for disposing of the product 13 1 22 Fire prevention regulations for the boiler room 14 1 23 Controls and...

Page 4: ...peciallyinsummer whentheboilerisoffforalongperiod to avoid problems of incrustation in the circulation pumps the boiler must be switched on 1 2 times a month and the circulation pumps operated for at...

Page 5: ...er increases The RTT 29 79 boilers are made of EN GJL 200 a special alloy that resists expansion and temperature variations which ensures a long working life Thanks to the vertical structures that hav...

Page 6: ...mm Water input output coupling G 1 1 4 DN Boiler volume gas side 24 20 33 40 42 60 51 80 61 00 70 20 dm3 lt 0 024 0 033 0 043 0 052 0 061 0 070 m2 Combustion chamber volume gas side 16 94 23 38 29 82...

Page 7: ...ER RTT 39 BOILER RTT 49 BOILER RTT 59 BOILER RTT 69 BOILER RTT 79 M mm 540 640 740 840 940 1 010 502 840 L M 1 6 Delivery The RTT 29 79 boilers are mounted on a wood pallet wrapped with Pluriball and...

Page 8: ...for the installation of the burner of the boiler Characteristics of the base it should be made of BS 25 fibre concrete it should respect the indicated dimensions it should not be covered with a slipp...

Page 9: ...ciently adequate conditions for the boiler room the hydraulic pipes and the other com ponents of the system 9 9Follow the instructions of the local gas suppliers 1 9 Hydraulic system Limescale and oth...

Page 10: ...ic diagram system for heating and domestic hot water production 1 11 Instructions for the connection of the fuel tank The dimensions of the fuel tank support structure should be ad equate for the dime...

Page 11: ...come under 0 5 m sec limit 2 m sec in the advised speed 1 13 Standard control panel of the boiler 1 Main ON OFF switch 2 Boiler thermostat from 30 to 90 C 3 Boiler thermometer 4 Safety thermostat with...

Page 12: ...3 41 4 91 6 00 8 63 5 25 7 56 7 53 10 85 10 22 14 72 12 91 18 59 Height of combustion gas pipe liquid fuel m 7 67 18 85 13 49 33 17 11 82 29 06 16 95 41 67 23 00 56 55 29 05 71 43 If the fuel is natu...

Page 13: ...erruption of current other faults or when the pumps are stopped protection pumps etc the burner should switch off The system should do this automatically Carry out the electrical wiring taking into ac...

Page 14: ...cal system All the boiler s gas and water valves should be open 9 9Check all the other connections according to the system s options 1 24 Boiler start up Engage the electrical supply using the master...

Page 15: ...nnection of the sensors Boiler combustion chamber and any formations of soot in the fume passages cleaning after checking Fastening and seal of the boiler door Seals of the boiler fittings Correct ope...

Page 16: ...ation When assembling the burner be careful not to leave any empty space between the front door and the body of the burner All the points of contact should be covered with insulating material to preve...

Page 17: ...EL BURNER BOILER BURNER MODEL CODE BOILER RTT 29 R40 D08 3481701 RTT 39 BOILER R40 D08 3481701 RTT 49 BOILER R40 D08 3481701 RTT 69 BOILER R40 D17 3482601 RTT 79 BOILER R40 D17 3482601 GAS BURNER BOIL...

Page 18: ...sealant wax silicon compounds For the measurements of the connection for the flue gases dis charge system see pag 8 1 34 Transport and storage The manufacturer transports the boiler on a pallet fixin...

Page 19: ...rmation Retailer Mr Address Tel Technical Assistance Centre Mr Address Tel Installer Mr Address Tel Date Intervention Fuel supplier Mr Address Tel Date Qty supplied Date Qty supplied Date Qty supplied...

Page 20: ...go VR Tel 0442630111 Fax 044222378 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...

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