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Nicotra RDH User Manual

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Nicotra S.p.A.- Via C.Cantù,1 – 20121 Milano – Italy
Factory.: Via Modena, 18 – Ciserano Loc. Zingonia (BG)– Italy
Factory.: Strada di Ronchis, 5 – Remanzacco (UD) - Italy
Cod. 985719 – 00 / Jan 2004
INSTALLATION AND MAINTENANCE
MANUAL
CENTRIFUGAL FANS
AT-AS-ASH-RSH-ADH-RDH
In accordance with ATEX directive
In issuing this guide-book maximum attention has been paid to ensure correct information. Nicotra S.p.A. does not accept any
responsibility for eventual errors or omissions.
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Nicotra RDH Specifications

General IconGeneral
Impeller TypeBackward Curved
TypeCentrifugal
ApplicationVentilation
Voltage230/400 V
Frequency50Hz/60Hz

Summary

General Information

ATEX Versions

Specific information for fans intended for use in potentially explosive atmospheres.

Receiving and Inspecting the Product

Data on the Rating Plate

Details found on the fan's identification plate, including model and technical specifications.

Weights of the Products

Approximate weights of standard fans, excluding packaging.

Handling and Lifting the Fan

Guidelines for safely moving and lifting fans to prevent damage.

Storage

Conditions and duration for storing fans to maintain their integrity.

Function and Design of the Fan

Operating Conditions

General and specific conditions for fan operation, including ATEX requirements.

Operating Limits

Maximum power, speed, and temperature limits for fan operation.

Balancing

Information on the fan impeller's static and dynamic balancing grade.

Bearings

Details on the types of bearings used and their expected lifespan.

Shafts

Specifications regarding shaft diameter selection for critical speed.

Installation

Fixing the Fan

Instructions for securely mounting the fan to a base or frame.

Installing the Drive System

Recommendations for setting up the pulley and belt drive system.

Safety Accessories

Standard and optional safety devices for fan operation.

Inspection After Installation

Checks to perform after the fan is installed but before operation.

Starting the Fan

Steps for safely initiating fan operation.

Maintenance

Ordinary Maintenance

Regular servicing tasks to ensure smooth fan operation.

Replacing Instructions for Bearings

Step-by-step guides for replacing fan bearings.

ATEX Declaration of Conformity

ADH ATEX - Operating Limits

Specific operating limits for ADH ATEX model fans.

RDH ATEX - Operating Limits

Specific operating limits for RDH ATEX model fans.

AT ATEX - Operating Limits

Specific operating limits for AT ATEX model fans.

ASH ATEX - Operating Limits

Specific operating limits for ASH ATEX model fans.

RSH ATEX - Operating Limits

Specific operating limits for RSH ATEX model fans.

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