Johnson Controls Frick RWB II User Manual

RWB II ROTARY SCREW COMPRESSOR UNITS
MAINTENANCE
070.200-IOM (DEC 11)
Page 38
TEMPERATURE and/or PRESSURE
ADJUSTMENT
All temperature and pressure sensors are factory set. If cali‑
bration is required, refer to Analog Calibration for temperature
or pressure in 090.022‑O (Quantum™LX panel).
OIL LEVEL TRANSMITTER
REPLACEMENT
The Oil Level Transmitter is located on the front of the sepa‑
rator near the bottom/center. See Figure 33.
The linear transmitter with hermetic enclosure is based on
the capacitive measuring principle. It features removable
electronics (from the sensor well) eliminating the need to
evacuate the compressor for replacement. This transmitter is
dedicated to oil level control and has no user adjustments.
1. Shut off control power.
2. Remove DIN connector plug from transmitter.
3. Loosen set screws.
4. Remove transmitter unit.
5. Install new transmitter unit.
6. Tighten set screws.
7. Apply DIN connector plug to transmitter.
8. Turn on control power.
Figure 33
SYMPTOM PROBABLE CAUSES and CORRECTIONS
EXCESSIVE NOISE and VIBRATION Main oil injection valve may be closed. Open valve.
Bearing damage or excessive wear.
Contact Frick Factor or Johnson Controls‑Frick for assistance.
Coupling loose on shaft. Tighten coupling. Replace if damaged.
Misalignment between motor and compressor. Realign motor and compressor.
Refrigerant flood back. Correct system problem.
SLIDE VALVE and/or SLIDE STOP 4‑way hydraulic control valve failed ‑ repair or replace.
WILL NOT MOVE
Slide stop indicator rod stuck. Contact Frick Factor or
Johnson Controls‑Frick for assistance.
Check both S.V. and S.S. potentiometer for wiring and resistance.
Compressor must be running with sufficient oil pressure.
Unloader piston stuck. Contact Frick Factor or Johnson Controls‑Frick for assistance.
Slipper seals worn out or damaged. Contact Frick Factor or Johnson Controls‑Frick for assistance.
NOTE: Troubleshooting the compressor is limited to identifying the probable cause. If a mechanical problem is suspected, contact
the Frick Service Department. DO NOT ATTEMPT TO DISASSEMBLE COMPRESSOR.
TROUBLESHOOTING THE RWB II COMPRESSOR

Johnson Controls Frick RWB II Specifications

General

Brand	Johnson Controls
Model	Frick RWB II
Category	Air Compressor
Language	English