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BAC VXI 9 User Manual

BAC VXI 9
38 pages
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VXI Closed Circuit Cooling Towers
OPERATING AND MAINTENANCE INSTRUCTIONS
MVXIv22EN
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BAC VXI 9 Specifications

General IconGeneral
BrandBAC
ModelVXI 9
CategoryHeat Pump
LanguageEnglish

Summary

Recommended Maintenance and Monitoring Programme

VXI Construction Details

VXI General Information

Operating Conditions

Specifies design pressure, fluid inlet/outlet temperatures, and material compatibility.

Purge Requirements

Installer must ensure proper air purging before unit operation.

Circulating Water Quality

Lists required water quality parameters for different coil materials and coatings.

Connecting Pipework

Details external piping support, compensators, and suction pipe sizing requirements.

Safety Precautions and Personnel

Covers general hazards, safeguarding public, authorized personnel, and mechanical safety.

Electrical Safety and Regulations

Electrical safety, location, local regulations, disposal, and modification guidelines.

Product Warranty Information

VXI Water Care and Quality Management

About Water Care

Explains evaporation, blow down, make-up, and the necessity of water treatment.

Water Quality Guidelines

Lists parameters for Baltibond® Hybrid Coating and Stainless Steel coils.

Biological and Chemical Control

Discusses biological growth, Legionella, and chemical treatment guidelines.

Passivation and Overflow

Explains passivation for galvanized surfaces and overflow connection behavior.

VXI Cold Weather Operation Guidelines

Cold Weather Operation Overview

General guidelines for minimizing coil freeze-up in sub-freezing conditions.

Sump and Coil Freeze Protection

Methods to protect sumps and coils from freezing, including heaters and glycol.

Capacity Control for Freeze Prevention

Adjusting airflow and heat load to maintain safe temperatures in cold weather.

Glycol Freeze Protection Data

Table showing freeze protection levels for different ethylene glycol concentrations.

Minimum Flow and Heat Load Requirements

Table listing minimum flow and heat load for various VXI models.

VXI Maintenance Procedures

Checks and Adjustments

Details inspection of basin, strainers, operating level, blow down, and sump heaters.

Operating Level and Make-Up

Instructions for float ball setup, operating height checks, and make-up valve adjustment.

Blow Down and Sump Heater Procedures

Procedures for blow down systems and sump heater operation and maintenance.

Drive System Maintenance

Procedures for belt tensioning, drive alignment, locking collars, and fan/pump rotation.

Motor and Vibration Checks

Checks for motor voltage/current, noise, vibration, and general equipment condition.

Component Inspections

Inspects heat transfer sections, finned coils, drift eliminators, water distribution, and fan shafts.

Component Maintenance

Maintenance for fan motors, spray pumps, and optional water level control packages.

Cleaning and Disinfection

Outlines mechanical cleaning steps and disinfection procedures for the cooling system.

Lubrication Procedures for VXI Units

Fan Shaft Bearing Lubrication

Lubrication intervals and procedures for fan shaft ball bearings.

Motor Bearing Lubrication

Lubrication intervals and recommended grease products for motor bearings.

VXI Comprehensive Maintenance Strategy

About Comprehensive Maintenance

Emphasizes preventive maintenance programs and the use of authorized replacement parts.

Prolonged Outdoor Stay Procedures

Actions required for units stored outdoors before installation to maintain condition.

VXI Further Assistance and Information

Assistance and Contact Information

Information about Balticare support and contacting local representatives.

Reference Literature and Websites

Lists reference literature and interesting websites for additional technical information.

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