Riello RX 250 S/PV User Manual

Istruzioni per installazione, uso e manutenzione
Instructions pour installation, utilisation et entretien
Installation, use and maintenance instructions
Bruciatori di gas premiscelato
Brûleurs de gaz prémélangé
Premixed gas burners
2903357 (7) - 04/2011
CODICE - CODE
MODELLO - MODEL
MODELE
TIPO
TYPE
3790310 - 3790330 RX 180 S/PV 908 T
3790300 - 3790320 RX 250 S/PV 903 T
I
F
GB
Funzionamento bistadio progressivo o modulante
Fonctionnement à deux allures progressif ou modulant
RX
Progressive two-stage or modulating operation

Riello RX 250 S/PV Specifications

General

Power Supply	230V, 50Hz
Combustion Head	Adjustable
Fuel Type	Natural Gas
Firing Rate (BTU/hr)	853, 000
Gas Supply Pressure (mbar)	20
Control Box	Riello
Electrical Supply	230V, 50Hz

Summary

Installation, Use and Maintenance Instructions

Premixed Gas Burners

Identifies the product type.

Modulating Operation Mode

Describes burner's progressive or modulating function.

Product Identification and Safety

General Operational Warnings

Essential Safety Rules

Critical rules for safe burner usage and maintenance.

Technical Data Overview

Installation Procedures

Detailed Technical Specifications

Model Specific Technical Data

Burner Description and Dimensions

Burner Component Breakdown

Burner Performance Characteristics

Firing Rate Performance Charts

Output Determination Charts

Interpreting Output Charts

Burner Installation Requirements

Valid Installation Positions

Boiler Mounting Plate Attachment

Selecting Blast Tube Length

Burner Assembly and Fixing Procedures

Burner-to-Boiler Fixing Steps

Detailed steps for physically attaching the burner.

Fuel and Gas Train System

Fuel Supply Valve System

Burner Operation and Adjustment

Pre-Firing Adjustment Steps

Steps to perform before the first burner firing.

Burner Start-Up Sequence

Step-by-step guide for initiating burner operation.

Fan Speed Adjustment for Modulation

How to adjust fan speed for output control.

Gas Valve Delivery Rate Adjustment

Procedure for adjusting gas flow rates.

Burner Calibration and Combustion Head

Optimal Burner Calibration Process

Achieving peak performance via flue gas analysis.

Target Calibration Values

Recommended CO2/O2 percentages for calibration.

Combustion Head Functionality

Explanation of the combustion head's features.

Emissions Performance

Burner Emission Standards

Final Checks and Maintenance

Essential Final Verification Checks

Verification steps after installation or maintenance.

Periodic Maintenance Requirements

Requirements for regular burner servicing.

Safety Parameter Settings

Safety Parameter Configuration Table

Burner Start-Up and Shut Down

Control Program Sequence Visualization

Probe Input and Modulation Options