Frick Rotary Screw Compressor RWF II 264 SS

WARNING: Be extremely careful not to loosen thermowell while attempting to remove the temperature sensor. The use of two wrenches will be necessary to ensure the thermowell remains stationary. Loss of oil and/or refrigerant could occur. Exposure to refrigerant fumes and/or hot oil can cause injury or death.

Upload a photo of the DIN connector plug removed from transmitter

Upload a photo of the new sensor assembly applied with thermal compound

New sensor assembly inserted into thermal well and knurled ring tightened

Upload a photo of the DIN connector plug applied to transmitter

NOTICE: The temperature sensor is factory set. If calibration is required, refer to Calibration Instructions in publication 090.040-O for service technicians.

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.

This section provides instructions for normal maintenance, a recommended maintenance program, troubleshooting and correction guides, and typical P and I diagrams. For typical wiring diagrams and information about the Quantum™ HD control panel, refer to 090.040-M.

This section must be read and understood before attempting to perform any maintenance or service to the unit.

When performing maintenance you must take several precautions to ensure your safety:

1. If unit is running, press [stop] key.

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.

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