Frick Rotary Screw Compressor RWF II 375 SS

Warning: Always take vibration readings from exactly the same places and at exactly the same percentage of load.

Use vibration readings taken from the new unit at start-up as the base line reference.

Evaluate vibration readings carefully as the instrument range and function used can vary. Findings can be easily misinterpreted.

Vibration readings can be influenced by other equipment operating in the vicinity or connected to the same piping as the unit.

Is the Frick PhD on-board vibration monitoring system utilized?

If the Frick PhD has an alarm or shut down event, a full spectrum vibration analysis would then be required to specifically identify the cause of the alarm or shut down.

Is a Frick compressor package without PhD monitoring already in operation?

If yes, it can be retrofitted with the Frick PhD on-board vibration monitoring system to fulfill the vibration maintenance recommendation.

However, it is also necessary to establish a current baseline vibration with a full spectrum analysis in order for the PhD retrofit to be compliant.

Check the compressor unit daily for leaks

Sign off on the daily compressor unit check

To clean the demand oil pump strainer, the unit must be shut down. The procedure is as follows:

1. Push [STOP] key on microprocessor panel to shutdown unit, then open disconnect switches for compressor and oil pump motor starters.

2. Close strainer inlet service valve.

3. Open drain valve located in the strainer cover and drain oil into a container.

4. Remove capscrews securing strainer cover, strainer cover, gasket and element. Retain gasket.

5. Wash element in solvent and blow clean with air.

6. Wipe strainer body cavity clean with a lint-free clean cloth.

Warning: Follow all safety guidelines and procedures during the replacement process.

Applicable transducer isolation valve closed

To change the discharge pressure transducer (PE-3), it will be necessary to depressurize the entire compressor package. Follow 'General Instructions For Replacing Compressor Unit Components' before going to step 3.

Wiring harness connectors identified

Wiring harness connector disconnected from transducer

Transducer unscrewed using a wrench on the metal hex at the base of the transducer

Wiring harness reconnected to the transducer

Warning: Use of filter elements other than Frick may cause warranty claim to be denied.

Is a single oil filter installed?

If dual oil filters are installed, open the outlet, then inlet service valves of the standby filter.

Warning: Open inlet service valve slowly to prevent a sudden pressure drop which could cause an oil filter differential alarm.

Outlet then inlet service valves of filter being serviced closed?

Bleed valve opened and pressure purged from the oil filter cartridge?

Notice: Recover or transfer all refrigerant vapor, in accordance with local ordinances, before opening to atmosphere.

Plug removed from the bottom of the filter canister and oil drained?

Canister cover removed and gasket discarded?