Marley AIO (All-in-One) Control Panel
冷却塔部件
品牌: 马利 | 产品类型: 冷却塔控制
概述
The Marley® AIO Control Panel integrates multiple cooling tower control functions into one convenient and cost-saving panel – reducing field installation and startup time – benefitting the installing contractor and end user. Typically, each cooling tower cell uses one AIO control panel. Only a single-point incoming power connection is required to power the several integrated electrical control circuits included; all circuits are factory tested with associated sensors, and VFD is preprogrammed to jobsite motor and speed control signal.
Control options built into the AIO Control Panel are customer-configurable based on bid specification and job site requirements. A typical combination is the Variable Frequency Drive (VFD) for the fan motor, Basin Heater control, Water Level control, and Vibration Switch interface. The AIO Control Panel is operator-friendly with easy-to-understand visual displays and built to UL508A Industrial control panel standards.
特征
- NEMA 3R outdoor painted steel enclosure with cooling vents.
- Main circuit breaker provides thermal and short circuit overload protection for the control panel. A single-point incoming power connection then distributes and reduces voltage to power various integrated control features. No upstream MOCP-rated device is required to protect the AIO control panel.
- Local lockout/tagout padlock provisions provided at the panel’s main disconnect.
- Integrated VFD is factory programmed with Marley cooling tower parameters and motor data.
- Vibration switch interface for power and control.
- Oil level switch interface circuit for power and control.
- 120 VAC power for heat trace circuit when required for external water level stilling chamber.
选项
- By-pass motor starter.
- Stainless steel NEMA 3R outdoor enclosure.
- 65,000 SCCR (short circuit current rating).
- Marley ABH (Advanced Basin Heater) cold-water basin heater controller.
- 4-20mA transmitter card for remote monitoring of cold-water basin temperature.
- LLC conductivity water level controller with makeup, alarms and cutout circuits.
- LLC+u ultrasonic water level controller with makeup, alarms and cutout circuits.
- VFD startup service, if required.
Integrated, single-point power connection
Fewer power feeds
Pre-programmed and functionally tested
Water level controls optional
Basin heater circuit optional
Vibration and oil level switch interface circuits
Lockout/Tagout provisions provided
Fewer power feeds
Pre-programmed and functionally tested
Water level controls optional
Basin heater circuit optional
Vibration and oil level switch interface circuits
Lockout/Tagout provisions provided