FRICK
®
QUANTUM
™
LX/HD RETROFIT
INSTALLATION INSTRUCTIONS
090.040-I (MAR 2012)
Page 5
37. POWER SUPPLY CALIBRATION
A. QUANTUM™ LX -
Measure the 5 volt DC power at
the
Quantum™ LX
board using a calibrated Digital Volt
Meter (DVM) at the location shown in the following
pictorial. If the voltage read on the DVM is not between
+5.10 and +5.20 VDC, then refer to the
Power Supply
Identification Adjustment and Replacement
section of
090.020-M.
B. QUANTUM™ HD - There are three separate power
supplies in the
QUANTUM™ HD
, and are designated
from left to right as +5 VDC, +12 VDC and +24VDC.
Measure the 5 volt DC power at the 5 Volt power supply
using a calibrated Digital Volt Meter (DVM) at the loca-
tion shown in the following pictorial. If the voltage read
on the DVM is not b5.00 and +5.25 VDC, then
refer to the
Power Supply Identification Adjustment and
Replacement
section of 090.040-M. The recommended
setting is +5.20.
Measure the 12 volt DC power at the 12 Volt power
supply. If the voltage read on the DVM is not between
+11.76 to +12.24, then refer to the
Power Supply Sec-
tion
of 090.040-M. The recommended setting is +12.12.
Measure the 24 volt DC power at the 24 Volt power
supply. If the voltage read on the DVM is not between
+22.80 to +26.40, then refer to the
Power Supply Sec-
tion
of 090.040-M. . The recommended setting is 24.50.
38.
At this point you should have the operating display on
the liquid crystal display panel.
39.
Referring to the Operation manual (090.022-O or
090.040-O), ensure that all setpoints have been properly
entered.
40.
To properly calibrate the temperature probes, a quality
test thermometer is required. Go to the Temperature Calibra-
tion display and look at the first temperature to be calibrated.
41.
Locate the associated temperature probe on the com-
pressor package and pull the temperature probe from the
well. Place the temperature probe in a container of water
along with a quality test thermometer.
42.
Wait for approximately two minutes and compare the
thermometer reading with the temperature probe reading.
Enter in the correction for temperature, if required.
43.
Step to the next temperature to be calibrated and locate
the associated temperature probe on the compressor pack-
age. Repeat the calibration procedure for each temperature
probe.
44.
After the temperature probe calibration is complete,
reinsert the temperature probes into the wells and place the
covers over the electrical boxes.
45.
Open the suction and discharge stop valves. If applicable,
open the side load stop valve, the economizer stop valve,
and the liquid injection stop valve.
46. CHECK FOR LEAKS!
47.
To calibrate the pressure transducers, a quality test gauge
is required. Go to the Pressure Calibration display and step
to the suction pressure setting.
48.
Attach the test gauge to the suction pressure service
valve behind the control panel. Read the pressure on the
test gauge and compare this reading to the displayed value.
Adjust the displayed value, if necessary.
49.
Step to the discharge pressure setting on the Pressure
Calibration display.
50.
Repeat the calibration procedure.
51.
Step to the oil pressure setting on the Pressure Calibra-
tion display.
52.
Repeat the calibration procedure.
53.
Step to the oil filter pressure setting on the Pressure
Calibration display.
54.
Attach the test gauge to the oil filter service valve. Com-
pare the reading on the gauge with the displayed oil pressure
reading. The oil filter pressure is the difference between
displayed oil pressure and the gauge reading (should be zero
when the compressor is not running).
55.
To calibrate the slide valve, slide stop, and the motor
current, refer to the Operation manual (090.022-O or 090-
040-O).
56.
This completes the
QUANTUM
™
LX/HD
retrofit instruc-
tions.
Adjustment
Potentiometer
Access
DC
+
+
–
–
G N L
G N L
120 VAC
or
240 VAC
