Why Every Character on a Riello Nameplate Matters
It’s a scenario every plant engineer dreads: a critical process heater trips, and the burner fails to restart. The nameplate on the burner is your first and most important clue to getting the right replacement, but it’s a dense string of letters and numbers.
Figure: Riello Burner Nameplate Example
Selecting the wrong replacement model can lead to a cascade of problems, including costly downtime and incorrect fuel specifications. This guide provides a practical framework for decoding Riello’s nomenclature, from the heavy-duty RS/RLS series to the top-selling Riello 40 series.
1. The Anatomy of a Riello Model Code
Most Riello burner model codes follow a fundamental structure:
[Series Prefix] [Size Code] / [Operation & Variants] [Options]
Part 1: The Series Prefix (Fuel & Application)
- RS: Gas burners (Residential to Industrial).
- RL: Light Oil burners.
- RLS: Dual fuel (Light Oil/Gas) burners.
- PRESS: Heavy-duty burners for Oil (G/N) or 3-stage operation (T).
- G: One-stage Light Oil burners (The “Riello 40” classic).
- GS: One-stage Natural Gas burners (Home Heating).
- FS: One-stage Natural Gas burners (Light Industrial).
Part 2: The Size Code (Power Output)
- Example: An RS 410 is significantly more powerful than an RS 50.
- Note: In the 40 Series (e.g., G10, GS20), the number roughly corresponds to the output capacity in kg/h or kW brackets.
Figure: Riello FS Burner Model Number Example
2. Deep Dive: The Top-Selling Riello 40 Series
The Riello 40 series is the global standard for residential and light industrial applications.
| Model Series | Fuel Type | Output Range (kW) | Application |
|---|---|---|---|
| 40 G | Light Oil | 12 – 240 kW | Standard Home Heating |
| 40 GS | Natural Gas | 11 – 220 kW | Residential Gas Boilers |
| 40 FS | Natural Gas | 11 – 220 kW | Light Industrial / Ovens |
| 40 GSD | Natural Gas | 41 – 220 kW | Two-Stage Home Heating |
| 40 GS/M | Natural Gas | 22 – 194 kW | Modulating (Process Heat) |
3. Decoding Suffixes & Special Features
The characters following the size code define the burner’s exact configuration.
Operation Modes
- /M (Modulating): Variable heat output to precisely match load demand.
- /D (Two-Stage): High/Low flame settings for better efficiency.
- /E (Electronic): Digital air-fuel ratio management.
- /EV (Electronic + VSD): Includes an Inverter to save electrical power.
Combustion Head Length
- TC (Testa Corta): Short Head. Standard for most boilers.
- TL (Testa Lunga): Long Head. Required for deep boilers.
4. Practical Reference: Decoding a Complex Code
Example Model: P300 T/G TC
| Code Segment | Meaning | Significance |
|---|---|---|
| P | Series Prefix | Identifies the PRESS heavy-duty burner series. |
| 300 | Size Code | Denotes the burner’s physical size and output range. |
| T/G | Operation & Fuel | Indicates Three-stage (T) operation for Light Oil (G). |
| TC | Head Length | Specifies a Short Combustion Head (Testa Corta). |
5. Getting the Right Burner, Fast
Our technical team at SFT specializes in translating these nameplates into parts. We typically provide quotes within 2 hours and maintain a 3-day shipping window for standard Riello components via FedEx, DHL, UPS and other air shipping methods.
Conclusion: Correctly interpreting a Riello nameplate ensures system performance and prevents procurement errors. Need to confirm compatibility? Consult an expert at processheat.co.
Technical References:
- Riello Official Documentation
- EN 267: Forced Draught Oil Burners Standard
- EN 676: Automatic Forced Draught Burners for Gaseous Fuels
