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Riello TAU 55 UNIT User Manual

Riello TAU 55 UNIT
72 pages
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INSTALLATION AND
MAINTENANCE MANUAL
CONDENSING
BOILERS
TAU 55 - 75 - 110
UNIT
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Riello TAU 55 UNIT Specifications

General IconGeneral
CategoryBoiler
TypeCondensing
Fuel TypeNatural Gas / LPG
Max. Heating Output55 kW
Heat Exchanger MaterialStainless Steel
Weight85 kg
Max working pressure3 bar
Max working temperature90 °C
Electrical supply230 V / 50 Hz
NOx Class6
Water content6.5 liters

Summary

CONFORMITY

RANGE

Lists available models and their corresponding fuel and codes.

ACCESSORIES

Lists available accessories with their descriptions and codes.

GENERAL SAFETY INFORMATION

PRECAUTIONS

Important safety precautions to prevent hazards during use.

PRODUCT DESCRIPTION

SAFETY DEVICES

Details on the built-in safety mechanisms of the boiler.

IDENTIFICATION

Information on how to identify the boiler using its plates and labels.

DATA PLATE

LAYOUT

Diagram showing the physical layout and numbered components of the boiler.

TECHNICAL SPECIFICATIONS

WATER CIRCUIT

WIRING DIAGRAM

Connection schematic for added accessories

POSITIONING THE TEMPERATURE SENSORS

PUMPS

Information regarding the boiler's pump requirements and water-side pressure drop.

CONTROL PANEL AND SYMBOLS

DISPLAY

MAIN SCREEN

Notes on functioning

PROGRAMMING LEVELS

INSTALLER LEVEL

Parameters accessible and modifiable by the installer.

MANUFACTURER LEVEL

Parameters reserved for the boiler manufacturer.

INFORMATION LEVELS

BASIC INFORMATION LEVEL

Accessing and viewing basic operational information and parameters.

EXTENDED INFORMATION LEVEL 1: temperatures

EXTENDED INFORMATION LEVEL 2: process values

EXTENDED INFORMATION LEVEL 3: assistance

UNPACKING THE PRODUCT

OPENING

Procedure for opening the boiler casing after unpacking.

DIMENSIONS AND WEIGHT

HANDLING

Safe procedures for moving and handling the boiler.

PLACE OF INSTALLATION

INSTALLATION IN OLDER SYSTEMS AND SYSTEMS REQUIRING MODERNISATION

Checks required when installing in existing or modernized heating systems.

WATER IN HEATING CIRCUITS

1. Chemical and physical characteristics of water

Specifications for water quality according to EN 14868 standard.

2. Central heating systems

Guidelines for filling, flushing, and operating central heating systems.

3. Corrosion

Explanation of deposit and stray current corrosion mechanisms.

4. Eliminating air and gas from central heating systems

Methods for removing air and gas from heating circuits.

Mistakes to avoid and precautions

Key precautions to prevent corrosion in heating systems.

WATER CONNECTIONS

TAU 110 UNIT

Specifications for water fittings on the TAU 110 UNIT model.

Typical water system schematics

DRAINING THE CONDENSATE

CONDENSATE NEUTRALISATION UNIT

NEUTRALISATION UNIT TYPE N2

Details and connection for the N2 neutralisation unit.

NEUTRALISATION UNIT TYPE HN2 (WITH PUMP)

Details and connection for the HN2 neutralisation unit with pump.

GAS CONNECTION

CH FROST PROTECTION

FLUE GAS VENT AND COMBURENT AIR INTAKE

ELECTRICAL CONNECTIONS

SENSOR CONNECTIONS

OUTDOOR SENSOR CONNECTIONS

FILLING AND DRAINING THE SYSTEM

FILLING THE SYSTEM

Steps for filling the central heating circuit with water.

DRAINING

Steps for emptying the central heating circuit and boiler.

PREPARING FOR INITIAL START-UP

INITIAL START-UP

CHECKS DURING AND AFTER INITIAL START-UP

TEMPORARY SHUTDOWN

PREPARING FOR EXTENDED PERIODS OF DISUSE

CALIBRATING COMBUSTION PARAMETERS

SETTING FUNCTIONING PARAMETERS

SETTING CENTRAL HEATING PARAMETERS

SETTING DOMESTIC HOT WATER PARAMETERS

ERROR CODES

TEMPORARY ERROR DISPLAY

How temporary errors are displayed on the boiler's control panel.

PERMANENT ERROR DISPLAY

ERROR TABLE

COMPLETE LIST OF PARAMETERS

LIST OF END USER LEVEL PARAMETERS

Parameters available for adjustment by the end user.

LIST OF INSTALLER LEVEL PARAMETERS

LIST OF MANUFACTURER LEVEL PARAMETERS

CONVERSION FROM ONE GAS TYPE TO ANOTHER

Adjusting the gas pressure switch

Procedure for adjusting the gas pressure switch after conversion.

MAINTENANCE

REMOVING THE BURNER

Step-by-step instructions for removing the boiler burner.

POSITIONING THE ELECTRODES

CLEANING THE CONDENSATE DRAIN AND SIPHON

TROUBLESHOOTING

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