54 • MultiFlex CUB-II and CUB-TD I&O Guide
026-1705 Rev 7 06-APR-2010
8.2.5.7.
High Discharge Alarm
High Discharge Pressure Alarm
Enter the discharge pressure level that, when
exceeded, will cause a discharge pressure alarm
to occur.
Discharge Trip
Enter the discharge pressure level that, when
exceeded, will cause a system shutdown. The
Discharge Trip setpoint should be higher than
the Discharge Pressure Alarm setpoint.
Reset Diff
A condensing unit that has been shut down
due to discharge trip can be automatically reset.
When the discharge pressure falls below the dis-
charge trip setpoint minus the reset differential
(Disch Trip - Reset Diff)
the CUB will attempt to
reset the discharge trip failure if the reset delay
timer has expired.
Reset Delay
The Reset Delay is the amount of time the
CUB will wait after a Discharge Trip before it
will attempt a reset (if the Reset Differential has
been met). Enter the desired Delay in minutes
(M) format.
8.2.5.8.
High Discharge Auto Resets
Auto Resets
The
Auto Resets
field sets the number of
attempts the CUB will make to automatically
reset the system within an hour after a discharge
trip shutdown has occurred. After all attempts
have been made and the discharge trip is still
occurring, the CUB will lock the compressor
OFF until the system is manually reset.
Enter a number of retries per hour from 0-2.
Comp Bypass Max Time
The Compressor Bypass Max Time sets the
maximum amount of time a refrigeration ON
bypass will last when initiated from the E2 or
Einstein. If refrigeration is bypassed ON past
this time, the bypass will end and the CUB will
resume regular control.
8.2.5.9.
Door Switch
Door Switch Open State
The Door Switch Open State specifies
whether an open door causes the door switch to
be OPEN or CLOSED. Choose the door switch
state that corresponds to “door open” in this
field.
Door Switch Fail-Safe
After the door has been opened, the E2 or
Einstein records how long the door remains
open. If it remains open longer than the Door
Switch Fail-Safe Time, the E2 or Einstein will
assume the door is stuck open and will restart
refrigeration to prevent food loss. Enter the
desired fail-safe time in minutes.
Door Switch Alarm Time
After the door has been opened, the CUB
records how long the door remains open. If it
remains open longer than the Alarm Time, the
CUB will generate an alarm. Enter the desired
alarm time in minutes.
8.2.5.10. Wash Switch
Wash Switch Active State
The Wash Switch Active State specifies
whether an OPEN or a CLOSED contact on the
clean switch indicates “enter wash mode.”
Choose either
OPEN
or
CLSD
in this field.
HiDischAlrm: 325
Disch Trip: 350
Reset Diff: 100
Reset Delay: 0 M
Auto Resets: 0
Comp Bypass
Max Time: 60 M
DoorSwitch
Open State: CLSD
Fail Time: 45 M
AlarmTime: 60 M
Wash Switch
WashActive: CLSD
Fail Time: 120 M
