This manual contains important information for the proper installation and operation of the cooling tower. Read the manual carefully and follow all instructions before installing and operating the cooling tower. Save this manual for future reference.
This manual covers the proper installation of the Marley QuadraFlow cooling tower, including site preparation, mechanical assembly, and electrical connections. It also explains the use of VFD controls, recommended operating procedures, and safety guidelines.
Additional sections detail routine maintenance, troubleshooting steps, and repair instructions for common issues such as motor imbalance, bearing lubrication, and blade alignment. Technical data such as current limits, speed‑change limits, and temperature‑difference calculations are included for reference.
| Rated current limit | 110% of nameplate current |
|---|---|
| VFD maximum current setting | 119% of nameplate current |
| Delay when switching from high to low speed | 20 seconds |
| Maximum speed changes per hour | 6 times |
| Temperature difference calculation | ΔT (°C) = water flow (m³/h) × 1.162 |
The manual limits speed changes to no more than six times per hour.
A delay of 20 seconds is required when switching from high to low speed.
The temperature difference is calculated by multiplying the water flow (m³/h) by 1.162.