Updated
A Riello burner model identifies its family, size and configuration. The nameplate adds the product code, serial number and operating ratings. Start with the complete model, then use the product code to identify the build and the serial number to identify the individual burner.
Read the nameplate first
- Model — RIELLO 40 G10 LC: the burner designation. Keep the full suffix when recording or ordering the model.
- Type — 464T1: Riello’s type reference, used alongside the model in its technical documents.
- COD. — 20013617: the product code for this configuration.
- N. — 1822165963: the serial number of this individual burner.
- 230 V, 50 Hz: the electrical supply.
- 0.17 kW: the electrical power rating. 54–120 kW is the combustion output range; 4.5–10 kg/h is the fuel-oil flow range.
For burner selection, use the combustion output and firing-rate diagram. The electrical kW value describes the power consumed by the burner, not the heat it delivers.
RS, RL and RLS: identify the fuel family
- RS: gas burners.
- RL: light-oil burners.
- RLS: dual-fuel burners for light oil and gas.
For example, Riello RLS 100 is a dual-fuel model. Its full specification includes the output range and operating mode for the burner.
The number is a size designation, not a kW conversion. Read the output from the model’s technical table. Keep separate naming families separate: PRESS T/G identifies Riello’s three-stage light-oil range, while Riello 40 uses the G, GS, FS, GS/D and GS/M family names below.
Decode an R-series model
The designation chart in Riello manual 20079034 gives this example:
RS 310/M BLU TC FS1 3/400/50 230/50/60
| Code | Meaning in this model |
|---|---|
| RS | R-series gas burner. |
| 310 | Burner size designation. |
| /M | Mechanical cam control of the air/fuel setting. |
| BLU | Low-NOx version; EN 676 Class 3 in this RS/M BLU manual. |
| TC | Standard combustion head. TL denotes the long head. |
| FS1 | Intermittent-duty flame-control configuration, with one controlled stop every 24 hours. |
| 3/400/50 | Three-phase, 400 V, 50 Hz, with neutral. |
| 230/50/60 | Auxiliary supply: 230 V, 50–60 Hz. |
In the same R-series designation chart, /E denotes electronic cam control, /EV adds variable-speed operation with an inverter, and /P denotes a proportional air/gas valve. FS2 identifies the continuous-duty flame-control configuration. MZ, BLU and MX distinguish emissions versions.
TC and TL describe head versions; the dimension drawing gives the actual head length in millimetres. View the RS 310/M BLU specifications and technical documentation for the burner used in this example.
Riello 40: read the family as a whole
G, GS and FS are family names. The slash suffix distinguishes the two-stage and progressive/modulating gas ranges.
| Family | Fuel | Operation | Series output |
|---|---|---|---|
| 40 G | Light oil | One-stage | 12–240 kW |
| 40 GS | Gas | One-stage | 11–220 kW |
| 40 FS | Gas | One-stage | 11–220 kW |
| 40 GS/D | Gas | Two-stage | 41–220 kW |
| 40 GS/M | Gas | Progressive two-stage; modulating with regulator and probes | 22–194 kW |
The figures above are the combined ranges in Riello’s family technical leaflets. Each model has its own output limits. For a two-stage example, see the Riello 40 GS10D product page.
GS/M: progressive two-stage or modulating?
GS10/M and GS20/M are supplied for progressive two-stage operation. Their output moves gradually between two preset levels. Adding the output regulator and temperature or pressure probe enables modulating operation, in which the burner holds intermediate output levels to follow demand.
- Riello 40 GS 10/M — published heat output: 22/42–105 kW.
- Riello 40 GS 20/M — published heat output: 43/82–194 kW.
The Riello GS/M technical leaflet (PDF) lists the regulator and probe accessories for modulating operation.
Similar names with different meanings
RL 34/1 T.C and RL 34 T.C
These are separate models: RL 34/1 T.C is one-stage; RL 34 T.C is two-stage. Both use a standard combustion head.
| Model | Operation | Published output |
|---|---|---|
| Riello RL 34/1 T.C | One-stage / on-off | 107–398 kW |
| Riello RL 34 T.C | Two-stage / high-low-off | 97/154–395 kW |
FS versus FS1 and FS2
Riello 40 FS is a burner family. FS1 and FS2 in the extended R-series code identify flame-control operating configurations. They are different parts of Riello’s naming system.
Model versus product code
The model is the starting point for selecting a burner. The product code identifies its factory configuration, including electrical and control versions. When ordering a replacement component, a nameplate photo records both references in one step.
