Programming The CUB Using the E2 or Einstein Front Panel
The MultiFlex CUB E2/ Einstein Interface • 41
Num Auto Reset
The
Num Auto Reset
field sets the number
of attempts the CUB will make to automatically
reset the system 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 from 0-2.
Disch Reset Dly
The Reset Delay is the amount of time the
CUB will wait in between restarts to try to reset
the discharge trip condition. Enter the desired
delay in hours:minutes:seconds (H:MM:SS) for-
mat.
7.3.10.3. High/Low Suction Pressure
Alarms
The MultiFlex CUB can be programmed to
generate alarms when the suction pressure rises
too high or falls too low.
Suct Hi Setpt
The Suct Hi Setpoint alarm setpoint is the
suction pressure level that, when exceeded, will
generate a suction pressure alarm. Enter the
desired pressure in this field.
Suct Pr Alm Dly
The High Suction Pressure Alarm Delay is
the amount of time the suction pressure must
remain above the high suction pressure alarm
setpoint before an alarm will be generated. Enter
the desired delay in hours:minutes:seconds
(H:MM:SS) format.
Suct Lo Setpt
The Suct Lo Setpt alarm setpoint is the level
the suction pressure must fall below before a low
suction pressure alarm will be generated. Enter
the desired pressure in this field.
7.3.10.4. Compressor Proof Alarms
If a digital compressor proof checking
device is available, the CUB can alarm on com-
pressor failure and attempt to auto-reset the
compressor.
Comp Proof Dly
The Compressor Proof Delay is the amount
of time a proof checking device must read FAIL
before the CUB will consider the compressor to
have failed. Enter the desired delay in
hours:minutes:seconds (H:MM:SS) format.
Proof Act State
The
Proof Act State
field tells the CUB
what digital state from the proof checking device
means FAIL. If set to
CLOSED
, the CUB will
interpret a contact closure as FAIL. If set to
OPEN
, the CUB will interpret an open contact
as FAIL.
Proof Shutdown
When the compressor fails, you have the
option of either having the CUB control the
compressor output as normal OR having the
CUB lock the compressor OFF until the failure
is reset. Set this field to
YES
if you want to lock
the compressor OFF during failure. Set this field
to
NO
if you want the CUB to continue attempt-
ing to control the compressor as normal.
Proof Rst Delay
The Proof Reset Delay is the amount of time
the CUB will wait between retry attempts. Enter
the number of seconds, from 0 to 240, in this
field.
Proof Auto Rsts
Proof Auto Resets determines how many
times the CUB will attempt to automatically
reset the compressor failure. After the retries
have occurred, if the compressor is still failed,
the CUB will consider the compressor failed
until the compressor is reset manually.
NOTE: This alarm will not be generated when
the system is in defrost.
NOTE: This alarm will not be generated when
the system is in Pump Down mode.
