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BAC FXV-1218-24T Series User Manual

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OPERATION & MAINTENANCE MANUAL
FXV and FXV3 Closed Circuit Cooling Tower
CXVB and CXVT Evaporative Condenser
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BAC FXV-1218-24T Series Specifications

General IconGeneral
BrandBAC
ModelFXV-1218-24T Series
CategoryHeat Pump
LanguageEnglish

Summary

Safety Precautions

Equipment Precautions

Discusses precautions related to equipment operation and maintenance.

General Maintenance Information

Provides general guidance on maintaining cooling equipment based on air and water quality.

Warranties

Refers to warranty limitations and recommended service frequencies.

Unit Operation and Storage

Start-Up Procedure

Details the steps for safely starting up the cooling tower unit.

Extended Shutdown

Outlines the services required for units shut down for more than three days.

Prolonged Outdoor Storage

Provides instructions for storing units outdoors for extended periods.

Detailed Component Maintenance Procedures

Cold Water Basin

Describes the construction and water level maintenance for the cold water basin.

Fan Inspection and Maintenance

Covers inspection procedures, tip clearance, drain holes, blade pitch, and rotation.

Fan Drive System

Explains inspection and maintenance of belt drives, including tension and alignment.

Fan Motors

Details inspection and maintenance procedures for cooling tower duty motors.

Fan Shaft Bearings

Covers lubrication and inspection of pillow block ball bearings supporting the fan shaft.

Corrosion Protection

Water Treatment

Emphasizes the importance of a water treatment program for equipment longevity and performance.

Corrosion and Scale Control

Details recommended levels for water quality parameters to prevent corrosion and scale.

Passivation

Explains special measures for passivating galvanized steel surfaces for corrosion protection.

Biological Control

Addresses controlling algae, slime, and micro-organisms like Legionella.

Bleed Rate

Bleed Line Calculations

Provides the formula and example for calculating the required bleed rate to control impurities.

Cold Weather Operation

Fan Section Icing Protection

Describes methods to prevent ice formation in the fan section during cold weather.

Basin Water and Internal Piping Freeze Protection

Covers methods to protect the basin and piping from freezing.

Coil Freeze Protection

Recommends solutions like glycol or maintaining minimum flow/temperature for coil protection.

Operation Considerations for Accessories

Basin Heater (Optional)

Explains the operation and annual inspection of electric immersion heaters for the cold water basin.

Stand Alone BAC Heater Control Panel

Details the operation and testing of the heater control panel and its components.

Vibration Cutout Switch (VCOS)

Covers the adjustment, testing, and calibration of mechanical and electronic vibration switches.

Fan Control

Independent Fan Control

Provides strategies for controlling fans individually, including VFDs and staging.

Variable Frequency Drive Operation

Discusses VFD applications, motor requirements, and resonance identification.

Resonant Speed Identification Procedure

Details the process for identifying and locking out resonant speed ranges for VFD units.

Installation Instructions for Field Connections

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