Setup Menu - Conair PCW-1.5 User Manual

4 - 1 0 l O p e r a t i o n
T I C Tu n i n g t h e C h i l l e r ( P i T )
Fast Responding System:
Select the fast setting "FSt" for small systems. Less than 250 pounds of water {30 gal-
lons} and 2,000 pounds of steel might be considered a small system. This setting has
the largest proportional band (4ºF), which allows a fast response to small deviations
between the process variable and setpoint. This system is typical for small chillers
with small molds or other process machinery. If improperly set up, the configuration
might cause oscillation around the setpoint temperature.

Setup Menu

To access the Setup Menu,
1
Press and hold the "enter" key for approximately five seconds, until
the service menu is active.
2
Toggle the Up/Down keys until "PiT" is displayed. Press the "enter" key
once to see the current tuning setting.
3
Toggle the Up/Down arrow keys to the desired SLO, nOr or FSt setting. Press
"enter" again to save this value. If at any time not key is pressed for 10 seconds the
control will return to "Home Page", displaying the process variable. If the unit is in
any alarm condition, you must clear it before you can adjust the tuning selector.
T I C C o n t r o l C h a n g i n g t h e L o w
P r e s s u r e A l a r m I g n o r e Ti m e ( L P 1 )
This feature allows you to set the time from when a low refrigerant pressure alarm is
sensed to when the alarm signals. The range for this alarm is 0-60 seconds; standard
default value is 5 seconds. This default value should be adequate for all systems and
should not need to be adjusted. This alarm can cycle up to three times per hour before
a latching shutdown occurs. Once a latching shutdown occurs "PAL" will flash on
screen and the unit will need reset.
1
Press the Enter key until the default configuration page Un appears on the screen.
2
Toggle up/down keys until until LP1 flashes on the display
3
Press Enter and use the up/down keys to select your desired amount of
time.
4
Press Enter to accept the units
C o n t i n u e d