Danfoss Intelligent Purging System (IPS 8) Ammonia User Guide

Product Description

The Danfoss Intelligent Purging System (IPS 8) is a stand-alone, self-contained unit designed to automatically remove non-condensable gases (air and other foreign gases) from industrial ammonia refrigeration systems. By removing these gases, the IPS 8 helps maintain system efficiency, reduce power consumption, and restore cooling capacity. The unit operates in 24-hour cycles, monitoring differential pressure to identify and purge non-condensables independently of the main plant.

Technical Data

• Supply Voltage: 230 V AC, 1ph, 60Hz
• Power Consumption: Max 1.3 kW
• Enclosure: IP55
• Weight: Max 100 kg
• Refrigerant: R452A (900g)
• System Refrigerant: R717 (Ammonia)
• Operating Temperature (R717): -40 °C to +60 °C

Safety and Installation

The IPS 8 must be installed in a non-ATEX atmosphere. It should be mounted on an even horizontal base, 0.05 to 1.1 meters above a service platform, with sufficient clearance for cooling and maintenance. The unit must be kept upright at all times. Ensure the support construction is level (angle < 2 degrees) to allow the internal liquid trap to function correctly. All external cables should be protected by metallic pipes. A water tank (max 200 liters) is required for the discharge of non-condensables to safely dissolve any trace ammonia.

Operation and Configuration

The system is controlled via the integrated MCX15B2 controller. Upon first power-up, configure the number of connected purge points (up to 8) in the 'Unit Config' menu. The system operates automatically, but users can monitor status, purge events, and alarms via the HMI. Modbus RTU communication is supported for remote monitoring.

Maintenance and Troubleshooting

Perform a maintenance check at least once a year, including cleaning fans and filters, inspecting the expansion valve, and checking the pH level of the water bath (must not exceed 12.6). If continuous bubbles are observed in the water tank during standby, the purge solenoid valves may require repair. The system includes self-diagnostics; refer to the alarm list in the manual for specific error codes and recommended actions.

Disposal

When the unit reaches the end of its service life, disposal must be carried out by competent personnel in accordance with local and national legislation.