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General| Model | RWF II 546 |
|---|---|
| Category | Compressor |
| Manufacturer | Frick |
| Type | Screw |
| Refrigerant | Ammonia (R717) |
Covers requirements for compressor foundations, anchoring, and grouting for stability.
Details the procedure for installing the motor and compressor coupling assembly.
Explains the economizer option for increasing system capacity and efficiency via subcooling.
General precautions for electrical installation and handling of electronic equipment.
Guidelines for motor starter package installation, including lug usage and warranty.
General precautions for installing electronic equipment to prevent RFI, EMI, and ground loops.
Critical grounding practices for electronic control equipment operation.
Guidelines for separating wires of different voltages and types within conduits.
Overview of the RWF II unit's integrated system and the manual's purpose for startup.
Features of the Frick RWF II rotary screw compressor, including bearings, slide valve, and volume ratio control.
Functions of the lubrication system, including bearings, seals, and oil cooling.
Explains the oil separation process using coalescer filter elements.
How the hydraulic system moves the slide valve and slide stop for capacity and Vi control.
Details the setup and parameters for EZ-Cool Liquid Injection Oil Cooling PI control.
Information on the ICAD MMI, buttons, and displays for operating the Danfoss valve.
Emphasizes supervision by an authorized representative and the need for an adequate refrigerant load.
Steps for initial start-up, including hand expansion valve adjustment for oil flow.
Criteria for identifying elevated energy on VFD packages and establishing skip frequencies.
Step-by-step guide for starting the compressor unit and setting automatic mode.
Safety precautions to be taken before performing any maintenance on the unit.
Key areas for good compressor operation, including oil and refrigerant cleanliness.
Procedure for seasonal or prolonged shutdowns and start-up after shutdown.
Step-by-step procedure for changing the compressor oil, including filter and strainer maintenance.
Initial steps for troubleshooting demand pump issues using pressure and vacuum gauges.
A table outlining recommended maintenance tasks and their frequencies.
Guidelines for performing vibration analysis to detect bearing wear and mechanical failures.
Importance of high-quality oil and the procedure for taking oil samples for analysis.
Approach to troubleshooting, emphasizing problem definition and cause identification.
Four logical steps for analyzing and correcting abnormal operational problems.
A table of common RWF II compressor symptoms and their probable causes and corrections.
A table of common demand pump system symptoms and their probable causes and corrections.
Identifies causes for oil loss in the coalescer sight glass and issues with the oil return system.
Troubleshooting for slide valve and slide stop operation problems related to solenoids and coils.
A checklist of mechanical and electrical items to be verified before unit start-up.
A report form for documenting compressor start-up parameters and information.
