Table of Contents
Advertisement
Min ON Time
The minimum ON time is the smallest
amount of time the condenser fan must remain
ON after being activated.
If using two condenser fans, program fan #1
with a lower Cut In setpoint than fan #2, so that
the fans will come on in stages.
8.2.5. Alarm Setpoints Screens
8.2.5.1.
Case Hi and Lo Temp
Case HiTemp: 35
Case LoTemp: 15
AlarmDelay: 60 M
After Defr: 30 M
Case Temp High Setpoint
The Case Temp High Setpoint is the temper-
ature at which a high case temperature alarm
will be generated.
Case Temp Low Setpoint
The Case Temp Low Setpoint is the tempera-
ture at which a low case temperature alarm will
be generated.
Alarm Delay
The Alarm Delay is the amount of time the
case temperature must be above the high case
temp setpoint or below the low case temp set-
point before an alarm will be generated. Enter
the delay in number of minutes.
After Defrost
Because the case temperature can be consid-
erably higher in a case that is exiting defrost, the
Delay After Defrost allows you to prevent high
case temp alarms from occurring for a fixed
amount of time after the end of a defrost cycle.
Enter the desired delay in minutes.
8.2.5.2.
Phase Fail
PhaseFail Alarm
Phase Act: CLSD
Proof Act: CLSD
ProofDelay: 30 S
Phase Alarm/Notice
When a phase loss occurs, the CUB will gen-
erate either an alarm or a notice, depending on
the value of this field.
52 • MultiFlex CUB-II and CUB-TD I&O Guide
Phase Fail Active State
The Phase Fail Active State tells the CUB
what digital state from the phase loss checking
device signifies a phase failure. Set this field to
CLSD if the phase loss device closes its contacts
on a phase failure, or OPEN if it opens contacts.
Proof Active State
The Proof Act field tells the CUB what digi-
tal state from the proof checking device means
FAIL. If set to CLSD, the CUB will interpret a
contact closure as FAIL. If set to OPEN, the
CUB will interpret an open contact as FAIL.
Compressor Proof Delay
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 seconds.
8.2.5.3.
Shut Down On Proof
Comp ShutDownOn
ProofFail: YES
AutoResets: 1
ResetDelay: 4 M
Shut Down On Proof Fail
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.
Auto Resets
The AutoResets field 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.
Enter the desired number of resets per hour
in this field.
Proof Reset Delay
The Proof Reset Delay is the amount of time
the CUB will wait between retry attempts. Enter
the number of minutes in this field.
026-1705 Rev 7 06-APR-2010
Advertisement
Table of Contents
