FRICK
®
QUANTUM
™
HD VILTER
®
RETROFIT
INSTALLATION INSTRUCTIONS
090.040-I02 (AUG 2014)
page 6
CALIBRATION OF TEMpERATURE &
pRESSURE SENSORS
1.
Locate the associated temperature probe on the compres-
sor package and pull the temperature probe from the well.
Place the temperature probe in a concentrated ice water bath
(80:20 ice to water) along with a quality test thermometer
or sensor.
2.
Wait for approximately two minutes and compare the
thermometer reading with the temperature probe reading.
Enter in the correction for temperature, if required.
3.
Step to the next temperature to be calibrated, locate the
associated temperature probe on the unit and repeat the
calibration process.
4.
After the temperature probe calibration is complete, re-
insert the temperature probes into the wells.
5.
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.
6. CHECK FOR LEAKS!
7.
To calibrate the pressure transducers, a quality test gauge
is required. Go to the Pressure Calibration display and step
to the suction pressure setting.
8.
If available, attach the test gauge to the suction pressure
service valve. Read the pressure on the test gauge and com-
pare this reading to the displayed value. Adjust the displayed
value, if necessary.
9.
Step to the discharge pressure setting on the Pressure
Calibration display.
10.
Repeat the calibration procedure using the value from
the gauge.
11.
Step to the oil pressure setting on the Pressure Calibra-
tion display.
12.
Repeat the calibration procedure using the value from
the gauge.
13.
Step to the pre-oil filter pressure setting on the Pressure
Calibration display.
CALIBRATION OF CApACITY & VOLUME SLIDES
Go to Menu > Calibration > Capacity / Volume
Once on this screen you can attach the power and signal
cables at the optical actuators for the capacity and volume
slides.
The optical actuators used for capacity and volume slide
positioning provide a 0-5vdc (0-5000mvdc) signal over the
range of travel for these slides back to the
QUANTUM
™
HD
analog board #1 channels 14 & 15 respectively.
The rotation of the command shaft is critical for proper
operation of loading and unloading for capacity control or
increasing and decreasing for volume control. The correct
command shaft rotation for the capacity and volume slides
by compressor model number is as follows:
Vilter
®
Compressor
Model
Command Shaft Rotation
Capacity
Increase
Capacity
Decrease
Volume
Increase
Volume
Decrease
71 - 451
CW
CCW
CW
CCW
501
CCW
CW
CCW
CW
601 (VSM)
CW
CCW
CCW
CW
601 (VSS)
CW
CCW
CW
CCW
701 - 3001
CCW
CW
CCW
CW
*CW - Clockwise; CCW - Counter Clockwise
To check proper command shaft rotation for the capacity and
volume actuators go to the calibration page for Capacity and
volume. See Figure below.
Press the load or unload capacity button for the capacity
slide to check rotation. If rotation is incorrect switch the
brown and blue wire for load and unload at the digital board.
Use the increase or decrease volume button for the vol-
ume slide to check rotation. If rotation is incorrect switch
the brown and blue wire for increase and decrease at the
digital board.
Once the rotation of the command shafts is confirmed to be
correct, you can calibrate the capacity and volume slides.
Figure 3. Calibration Capacity/Volume Screen
