Do you have a question about the Marley Aquatower 490A and is the answer not in the manual?
Check motor nameplate and inspect shipment for damage.
Position tower for optimal airflow and to avoid contaminated air intake.
Ducting requirements for managing discharge air in indoor installations.
Install tower level on a stable foundation, anchoring securely.
Connect makeup water and install blowdown line for summer use.
System setup for freezing weather, including storage tank and insulation.
Installing motor, sheave, belt, and guard.
Detailed steps for mounting motor, sheave, and belt alignment.
Connect motor leads according to nameplate and supply voltage.
VFD setup, programming, and safety considerations for motor control.
Procedures for initial startup, water filling, and system checks.
Maintaining pH, hardness, and alkalinity for corrosion prevention.
Procedures for disinfection and starting the cooling tower fan.
General safety precautions and PPE for maintenance tasks.
Lubrication and oil checks for motor and fan shaft bearings.
Regular checks for proper belt tension and drive components.
Detailed schedule for monthly, semi-annual, and annual servicing.
Procedures for cleaning and disinfecting the cooling tower.
Purpose and rates of blowdown for water quality control.
Measures to prevent freezing during periods of shutdown.
Procedures for draining and preparing the tower for shutdown.
Motor cleaning, lubrication, and run-in procedures.
Diagnosing and resolving motor noise and overheating issues.
Identifying causes and solutions for fan drive vibration.
Wiring configurations for single-phase motors.
Wiring methods for three-phase motors (Wye and Delta).
Wiring diagrams for two-speed single-winding motors.
Parts reference for 60-cycle motor applications.
Parts reference for 50-cycle motor applications.
Detailed parts list for 60-cycle motors.
Detailed parts list for 50-cycle motors.