SPX 800 Manual - Free PDF Download

Page 1 - User Manual Identification and Support Information

Identification details, model reference, support resources, and registration information.

Page 2 - Safety Symbols and Support Contact

Definition of warning symbols (Warning, Caution, Note) and instructions for contacting Marley for support and part requests.

Page 3 - Table of Contents

Instruction manual structure listing sections such as General, Start-up Procedures, Operation, Maintenance, Safety, and Inspection.

Page 4 - Cooling Tower Heat Transfer Principles

Explanation of heat transfer mechanisms in cooling towers, the effect of fan power, and air conditions on performance and efficiency.

Page 5 - Pre-Start Safety, Cleaning, and Inspection Procedures

Safety precautions, instructions for cleaning nozzles and basins, and a checklist for inspecting drive shaft alignment, bolt tightness, structural integrity, and oil levels.

Page 6 - Pre-Operational Checks and Freezing Weather Caution

Procedures for starting mechanical systems, including inspecting fans, motors, and water systems, with caution regarding circulating water in freezing weather without a heat load.

Page 7 - Initial Water Circulation Start-up Procedure

Steps for starting the water circulation system, including filling the basin, managing valves, priming pumps, adjusting water levels, and starting fans.

Page 8 - Routine System Restart and Freezing Weather Operation

Procedure for safely restarting a cooling tower system after shutdown, cautions for operating in freezing weather (e.g., waiting until 70°F), and fan start guidance for multi-cell towers.

Page 9 - Counterflow Tower Operation and Fan Drive

Explanation of counterflow mechanical draft cooling tower performance factors, cooling capacity, wet-bulb temperature, and guidelines for using two-speed motors.

Page 10 - Cooling Tower Operational Procedures and Components

Procedures for fan rotation timing, hot water distribution, fill design, drift eliminators, cold water basin management, and maintenance of the Amertap condenser tube cleaning system.

Page 11 - Operating Cooling Towers in Freezing Weather

Methods for maintaining water temperature to prevent ice formation, controlling ice buildup on components, using bypass valves, adjusting fan speeds, and inspection protocols during cold weather operation.

Page 12 - Freezing Weather Operation Precautions

Procedures for operating fans in reverse to melt ice, speed limits, necessary delays between reverse and forward operations, and draining piping to prevent freezing and rupture.

Page 13 - Temperature and Energy Management

Maximizing performance by running fans at full speed for colder water output and minimizing energy use by adjusting fan speeds based on ambient temperature, including motor start-up time limits.

Page 14 - Fan Start Rate and Variable Frequency Drives

Calculation methods for the maximum number of fan starts per hour based on fan speed, and the role of variable frequency drives in temperature control and energy management.

Page 15 - Maintenance Procedures and Fill System Care

Maintenance procedures emphasizing regular inspections of the hot water distribution system, access points, fill maintenance to prevent clogging from dirt, algae, and scale, and safety cautions regarding eliminator use.

Page 16 - Component Maintenance and Inspection

Maintenance instructions for tower framework, drive shaft, electric motor, fan, gear reducer, and cold water basin, including inspection care and maintaining the Langelier index.

Page 17 - Evaporative Cooling Tower Cleaning and Safety

Safety and maintenance instructions for cleaning evaporative cooling towers to prevent bacterial growth like Legionella, requiring lockout procedures, weekly inspections, annual flushing, and water treatment programs.

Page 18 - Water Treatment and Blowdown Requirements

Blowdown requirements based on cooling range and concentration levels, calculated blowdown percentages, and chemical treatment for pH maintenance in cooling tower water systems.

Page 19 - Water Quality Management in Cooling Towers

Managing water-related issues including corrosion prediction using the Langelier index, control of slime and algae, scaling caused by various minerals, and foaming due to dissolved solids or contaminants.

Page 20 - Seasonal Equipment Shutdown Procedures

Procedures for shutting down the tower, mechanical equipment, and electric motors during seasonal shutdowns, including draining piping, inspecting deterioration, and maintaining oil levels.

Page 21 - Spare Parts and Accessories List

Recommended spare parts for quick repairs, including fan, gear reducer, drive shaft assemblies, seals, and accessories like stairways and variable frequency drives.

Page 22 - Electric Motor Troubleshooting Guide

Troubleshooting common electric motor problems such as failure to start, unusual noise, overheating, and insufficient speed, detailing causes related to connections, voltage, bearings, and fan components.

Page 23 - Mechanical System Troubleshooting

Troubleshooting mechanical issues like incorrect motor rotation, gear reducer noise, vibration, and fan noise, providing remedies such as adjusting leads, replacing parts, tightening bolts, and rebalancing shafts.

Page 24 - Safety Protocols and Maintenance Schedules

Safety responsibility for the operator and owner, required safety measures like barricades and harnesses, and maintenance frequency tables for components like ladders and walkways.

Page 25 - Inspection and Maintenance Schedule

Table detailing recommended maintenance tasks for components such as Fan, Motor, Drive Shaft, and Guards, specifying frequencies (Daily, Weekly, Monthly, etc.).

Page 26 - Cooling Tower Inspection Checklist

Checklist for documenting inspection details of the structure, water distribution system, heat transfer system, and condition assessments using rating scales.

Page 27 - Mechanical Equipment Inspection Checklist

Checklist for assessing mechanical equipment including belt drives, gear drives, fans, motors, and other components, recording conditions, specifications like oil level, and required actions.