Frick Rotary Screw Compressor RWF II 159 SS

Warning: This procedure requires trained personnel with PPE!

EZ-CAL High pressure cut-out check valve test block

Is the EZ-CAL test block installed on the package?

Is the pressure transducer wired to the Quantum HD controller?

Is the tubing run to the compressor discharge connection?

Is the HPCO fully open to the discharge pressure source in the RUN position?

Is the external source connected directly to the HPCO in the TEST position?

Is the function of the HPCO and pressure setting confirmed by application of external pressure?

WARNING: Do not mix oils of different brands, manufacturers, or types. Mixing of oils may cause excessive oil foaming, nuisance oil level cutouts, oil pressure loss, gas or oil leakage and catastrophic compressor failure.

NOTICE: The Frick oil charge shipped with the unit is the best suited lubricant for the conditions specified at the time of purchase. If there is any doubt due to the refrigerant, operating pressures, or temperatures, refer to Frick Oil publication 160.802-SPC for guidance. Only use Frick oil filter elements or warranty claim may be denied.

Participate in a regular, periodic oil analysis program to maintain oil and system integrity. Oil analysis kit part number: 333Q0001853.

Oil samples for analysis should be taken after the oil filter. A 1/4 in. purge valve is provided in the oil filter canister head.

WARNING: Exercise extreme caution in the vicinity of operating equipment. Skin contact with lube oil or inhalation of vapors can cause serious injury or death, consider gloves and eye protection.

Sample hot, active fluid while the equipment is operating. Sample after 30 min of compressor operation.

Unthread the oil sampling valve cap and locknut.

WARNING: Failure to enter skip frequencies could cause catastrophic compressor failure or severe compressor damage and result in serious injury or death.

Check for excess vibration and skip frequencies anytime unit operating conditions change

Decrease the VFD speed by 100 rpm increments and check the entire package for elevated energy at each stage until the minimum speed range is reached.

Check for high energy hot spots

Enter the vibration meter reading

Any readings that meet or exceed one inch per second must have that frequency range skipped in the microprocessor for the VFD, eliminating the ability of the package to operate within that frequency range.

Enter the identified frequency range to be skipped

Each identified range needs to have the skip set to as narrow a frequency band as possible, only making it wider until full range is accommodated.

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.

WARNING: Do not mix oils of different brands, manufacturers, or types. Mixing of oils may cause excessive oil foaming, nuisance oil level cutouts, oil pressure loss, gas or oil leakage and catastrophic compressor failure.

Shut down the unit when changing oil. At the same time all oil filter cartridges must be changed and all oil strainer elements removed and cleaned.

Press the [STOP] key on the microprocessor panel to stop the compressor unit.

Open the disconnect switch for the compressor motor starter.

Close the suction and discharge service valves; also close the liquid-injection and economizer service valves, if applicable.

Slowly vent separator to low-side system pressure using the bypass line on the suction trap.

NOTICE: Recover or transfer all refrigerant vapor, in accordance with local ordinances, before opening to atmosphere. The separator must be equalized to atmospheric pressure.

WARNING: Oil-entrained refrigerant may vaporize, causing a separator pressure increase. Repeat venting and recovery procedure, if necessary.

Open the drain valve(s) located on the underside of the separator and drain the oil.