CoreLink
TM
22
P/N 3128012_A
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
5.4
Alarm setpoints, C4: AlarmSetpts
Navigate to alarm setpoints to change the Min and Max setpoints of various alarms
Navigate to C4: AlrmSetpts. check for Range as per the below table
E2 Parameter
CoreLink Parameter
Description
Range
AlarmOpt
Alarm Option
In an absolute alarm, the alarm parameter is the
threshold for the alarm. In a relative alarm, the
alarm setpoint is added to the parameters, and its
sum becomes the alarm threshold.
0, "Relative", 1,
"Absolute"
HiTemp
High Temp
Highest temperature the case may reach before
the alarm starts.
(0 to 99) °F
LoTemp
Low Temp
Lowest temperature the case may reach before
the alarm starts.
(-40 to 99) °F
AlarmDelay
Alarm Delay
Alarm Delay: Time delay before the alarm
activated if there is a problem.
(0-255)min
AlarmHys
Alarm Hysteresis
Temperature margin from alarm setpoint in which
the temperature must drop before the alarm
shuts off.
(0 to 20)
Min_SHAlarm1
Min SH Alarm 1
Lowest superheat temperature possible before
the alarm timer starts for coil one. After timer
delay, valve is closed 0% to protect compressor.
Anytime superheat goes above min SH alarm
setpoint, the timer resets and the valve position
will return to minimum position or current PID
calculated position.
(-25 to 50) °F
Min_SHAlarm2
Min SH Alarm 2
Lowest superheat temperature possible before
the alarm timer starts for coil two. After timer
delay, valve is closed 0% to protect compressor.
Anytime superheat goes above min SH alarm
setpoint, the timer resets and the valve position
will return to minimum position or current PID
calculated position.
(-25 to 50) °F
Min_SHAlarm3
Min SH Alarm 3
Lowest superheat temperature possible before
the alarm timer starts for coil three. After timer
delay, valve is closed 0% to protect compressor.
Anytime superheat goes above min SH alarm
setpoint, the timer resets and the valve position
will return to minimum position or current PID
calculated position.
(-25 to 50) °F
Max_SHAlarm1
Max SH Alarm 1
Highest superheat temperature possible before
the alarm starts for coil one. After timer delay,
valve is opened 100%. Anytime superheat goes
below max SH alarm setpoint, the timer resets
and the valve position will return to current PID
calculated position.
(-5 to 90) °F
Max_SHAlarm2
Max SH Alarm 2
Highest superheat temperature possible before
the alarm starts for coil two. After timer delay,
valve is opened 100%. Anytime superheat goes
below max SH alarm setpoint, the timer resets
and the valve position will return to current PID
calculated position.
(-5 to 90) °F
Max_SHAlarm3
Max SH Alarm 3
Highest superheat temperature possible before
the alarm starts for coil three. After timer delay,
valve is opened 100%. Anytime superheat goes
below max SH alarm setpoint, the timer resets
and the valve position will return to current PID
calculated position.
(-5 to 90) °F
SHAlarmdly1
SH Alarm Delay 1
Delay in seconds before the superheat alarm
becomes active for coil one.
(0 to 300) sec
SHAlarmdly2
SH Alarm Delay 2
Delay in seconds before the superheat alarm
becomes active for coil two.
(0 to 300) sec
SHAlarmdly3
SH Alarm Delay 3
Delay in seconds before the superheat alarm
becomes active for coil three.
(0 to 300) sec
