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RHOSS H51369 User Manual

RHOSS H51369
40 pages
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MACROSYSTEM
ISTRUZIONI PER L’USO
INSTRUCTIONS FOR USE
CEHV 46÷639
Torri di raffreddamento
Cooling towers
H51369
Italiano English
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RHOSS H51369 Specifications

General IconGeneral
BrandRHOSS
ModelH51369
CategoryChiller
LanguageEnglish

Summary

1. INTRODUCTION

1.1 Use Envisaged

Suitable for cooling industrial-type water, clean.

1.2 Limitations to Usage

Prohibits usage not envisaged, especially with pollutants.

1.3 Unit Identification

Describes the unit's identification plate with technical data.

1.4 Supplied Documentation

Lists included documentation like Declaration of Incorporation.

2. DESCRIPTION OF THE EQUIPMENT

Diagram of Components

Illustrates the cooling tower with numbered components.

Component List

Lists all parts of the cooling tower with Italian and English names.

3. TRANSPORT, LAYOUT AND INSTALLATION OF THE UNIT

3.1 Transport

Covers transportability and handling of cooling tower sections.

3.2 Moving the Unit

Details safe moving and lifting procedures using equipment.

3.3 Layout Considerations

Discusses optimal placement and environmental factors for installation.

3.4 Installation and Assembly

Covers general installation notes and assembling two-piece units.

3.4.3 Electric Wiring

Details electrical connection, safety, and motor rotation checks.

3.4.4 Hydraulic Connections

Explains water inlet, return, and drain connections with precautions.

Manometer and Flowrate Control

Details manometer installation for pressure and sampling, and flowrate control.

3.4.5 Water Treatment

Discusses make-up water quality and treatment for cooling circuits.

4. START-UP

4.1 Preliminary Checks

Lists essential checks before initial operation of the cooling plant.

5. OPERATION

5.1 Operating Conditions

Defines normal usage parameters like pressure and temperature.

Make-up Water Types

Discusses using river and slightly salty water for make-up.

5.4 Winter Operation

Addresses potential ice formation and prevention methods.

Ice Formation Details

Details ice formation in basins, piping, fans, and surroundings.

5.4.5 Operation in Dusty Environments

Advises on special measures for dusty and polluted conditions.

6. SAFETY WARNINGS

6.1 Motor-Fan Assembly Safety

Precautions for working on the motor-fan assembly.

6.2 Biological Risks Protection

Addresses biological pollutants and necessary protective measures.

7. MAINTENANCE

7.1 Casing Maintenance

States casing requires no specific maintenance beyond cleaning.

7.2 Motor-Fan Assembly Inspection

Recommends periodic inspection for anomalies in the motor-fan set.

7.3 Fill Pack Maintenance

Advises on periodic checks for dirt, scaling, or biofilm in the fill pack.

7.4 Drift/Droplet Eliminator Maintenance

Suggests checking cleanliness and positioning of eliminator panels.

7.5 Water Distribution System

Recommends visual checks for dirt and debris in the distribution system.

7.6 Louver Maintenance

Notes anti-splash-out louvers need no specific maintenance, just unobstructed passages.

7.7 Float-Valve Maintenance

Details checks for float-valve operation and lubrication.

7.8 Bleed Valve Maintenance

Advises ensuring the bleed-off tap is free and cleaning if occluded.

7.9 Water Heating System Check

Recommends checking thermostat, cleanliness, and cut-out switch for heaters.

7.10 Maintenance Schedule

Provides a summary table of maintenance actions and their frequencies.

8. TROUBLESHOOTING

Excessive Motor Current

Lists causes and solutions for high absorbed electric current by the motor-fan set.

Entrainment of Water

Addresses causes and solutions for water escaping the unit.

Loss of Water from Basin

Covers issues with basin water loss and their remedies.

Lack of Cooling

Explains causes of reduced cooling and increased water temperatures.

Vibrations and Noise

Lists causes and solutions for abnormal vibrations or noise from the unit.

Hydrometer Reading Issues

Discusses oscillating or jerky hydrometer readings and their causes.

9. ACCESSORIES

Electrical Resistance Element

Describes an element to prevent ice formation in the basin.

Low Level Cut-Out Switch

Explains the function of a switch to prevent pump cavitation or heater damage.

Two Speed Motor

Details a motor for modulating cooling capacity based on load or season.

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