Compressor Model Differences - Frick QUANTUM Maintenance Manual

S90-010 M
Page 18
SYMPTOM
CONTROL PANEL
RESPOND TO REMOTE
SIGNALS
MOTOR LOAD CONTROL(FORCED
UNLOAD) OCCURS AT HIGH MOTOR
AMPS
MOTOR LOAD CONTROL(FORCED
UNLOAD) OCCURS AT LOW MOTOR
AMPS
PRESSURES ON THE
SCREEN DO NOT APPEAR CORRECT
COMPRESSOR WITH SLIDE VALVE
DOES NOT AUTOMATICALLY LOAD OR
UNLOAD*
COMPRESSOR THAT
CAPACITY DOES
AUTOMATICALLY LOAD OR UNLOAD*
* If applicable
FRICK
GRAM
Slide Valve Reading
Slide Valve Setpoints
Slide Valve Calibration
Capacity Reading
Slide Stop Reading
Slide Stop Calibration
DX Circuit Option
Hot Gas Bypass/SV Setpoints Option
Remote Slide Valve Position Option
Sequence by Comp. Sequencing
Forced unload Inhibit load delay
setpoint
* Or other variable VI
N/A = Not Applicable
FRICK QUANTUM COMPRESSOR CONTROL PANEL
PROBABLE CAUSES and CORRECTIONS
DOES NOT Digital I/O Board 2, Inputs 3 through 5 can be used to operate the compressor
CONTROL
from a remote location. NOTE: Check the Operating display to verify that
the compressor and the Slide Valve are in REMOTE.
If the Input 3 (MOD 3) does not turn on, check if the LED (D3) is lit when it
should be. If it isn't, check the fuse (F3) and if the fuse is OK, check the input
module (MOD 3).
If the Input 4 (MOD 4) does not turn on, check if the LED (D4) is lit when it
should be. If it isn't, check the fuse (F4) and if the fuse is OK, check the input
module (MOD 4).
If the Input 5 (MOD 5) does not turn on, check if the LED (D5) is lit when it
should be. If it isn't, check the fuse (F5) and if the fuse is OK, check the input
module (MOD 5).
The current transformer is used to convert the AC motor amps to a DC voltage
signal for the microprocessor. If the %FLA reading from the Operating display
is incorrect, contact the Frick Service Department.
The current transformer is used to convert the AC motor amps to a DC voltage
signal for the microprocessor. If the %FLA reading from the Operating display
is incorrect, contact the Frick Service Department.
OPERATING TEST 1 - Shut down the compressor and allow pressures to equalize.
Discharge pressure and oil pressure should have the same reading.
TEST 2 - If either oil pressure or discharge pressure read different pressures,
one or both transducers are at fault. Valve off the suction transducer from the
unit and open the vent valve on transducer manifold to atmosphere. If the
suction transducer reads atmospheric pressure, then the transducer in Test 1,
which agrees with the suction transducer, is correct. The transducer which
disagrees is defective.
NOTE: Reference the Pressure Transducer Conversion Data Chart.
Verify that the Slide Valve Mode [AUTO] key has been pressed and AUTO
appears under Slide Valve Mode on the "Operating Status" screen.
If the problem persists, see the Troubleshooting section SLIDE VALVE DOES
NOT LOAD and/or UNLOAD.
STEPS ON
Verify that the Capacity Mode [AUTO] key has been pressed and AUTO
NOT
appears under Capacity Mode on the "Operating Status" screen.
If the problem persists, see the Troubleshooting section COMPRESSOR
DOES NOT LOAD and/or UNLOAD.

COMPRESSOR MODEL DIFFERENCES

RWB, SC
GSV, YLC
0-100%
Yes
Yes
N/A
2.2-5.0
N/A
Yes
Yes
Yes
Yes
N/A
MAINTENANCE
RXB* RXF
GST*
0-100% 0-100%
Yes Yes
Yes Yes
N/A N/A
2.2,3.5,5.0 2.2,3.5,5.0
N/A N/A
Yes Yes
Yes Yes
Yes Yes
Yes Yes
N/A N/A
RDB 3-Step RDB 4-Step
GSB 3-Step
N/A N/A
N/A N/A
N/A N/A
50,75,100 25,50,75,100
N/A N/A
N/A N/A
N/A N/A
N/A N/A
N/A N/A
N/A N/A
Yes Yes
Other
0-100%
Yes
Yes
N/A
N/A
N/A
Yes
Yes
Yes
Yes
N/A