Series 1 Portable Chillers, PLC Control
UGH017/0500
5-6
M
AINTENANCE
E
NTERING
M
AINTENANCE
S
CREENS
The Maintenance screens are
password protected. You must
have clearance to enter these
screens.
Use the Maintenance screens to view cycling information.
Press the Setup arrow.
Press the Scroll arrows to scroll through the
Setup screens. Stop when you get to the Maintenance
screen:
2
1
STATUS SETUP RUN ALM
Press arrow
Press the Maintenance arrow.
The password screen displays. Use the keypad to enter the
password, then press the Enter button.
Press the CYL arrow.
The first Cycle screen displays. Use the Scroll arrows to
scroll through the Cycle screens. These screens show the
cycle time in hours:
Maintenance
3
4
To enter Maintenance screens requires security clearance.
There are two security levels built into the control let you
limit access to the some setup and maintenance screens. The
two security levels are:
●
User
Allows user to view all Status screens, access the Run
screens, and access the Setup screens for: temperature
setpoint, high temperature deviation, and PID reset.
The control arrives from the factory at this level.
●
Maintenance
Provides all User-level access as well as Fans screen,
percent glycol screen, and Maintenance screens. These
screens are password protected. You cannot enter these
screens without the password (999). After the control
is idle for 5 minutes, it automatically closes out of the
Maintenance screens, returns to the User level, and dis-
plays the Temperatures status screen. To return to the
Maintenance level you must re-enter the password.
