Sub-Zero Mega Chill

22
23
0
R6 “MIN SET TEMP” F A1+1 Lower 5.0 C 0.5
Minimum Cooling Set-Point SP
Use UP/DOWN keys to get
desired value & press set
key to confirm. Once set at
a particular value, this will
not allow the set point to go
below this value and above
R5 setting.
Eg : Setting this parameter at
O
-30 C will not allow the set
O
point to go below -30 C. Also
if the temperature reaches
O
-30 C the display will show
Lt (Low Temp) indicating that
the temperature has gone
below the value in this
parameter and at this point
the alarm will come on.
C1 “COMP1 TIME DELAY” F 0 20 3 Min 1
Time Delay for Compressor1
restart
E.g. If this parameter is set
at 3min, then after cutting
off the compressor1 at set
temperature compressor1
will not restart for a minimum
of 3min.This time delay is
also active at power on of
the system.
C2 “COMP2 TIME DELAY” F 0 20 3 Min 1
Time Delay for Compressor2
restart
E.g. If this parameter is set
at 3min, then after cutting off
the compressor2 at set
temperature compressor2 will
not restart for a minimum of
3min.This time delay is also
active at power on of the
system.
C3 “COMP START DELAY” F 0 120 10 Sec 1
Time Delay between two
Compressor start
E.g. If this parameter is set
to 30sec, then second
compressor will come on
after 30sec delay from first
compressor switch on.
Set
Para Description MIN MAX Fac. M.U. Var.
by
Set
Para Description MIN MAX Fac. M.U. Var.
by
2 COMPRESSOR2 COMPRESSOR
F1 “FAN START LOGIC” F 0 1 0 Flag 1
Fan Start Logic
0 = Fan always On.
1 = On when compressor
is ON.
F2 “FAN START TIME” F 0 10 10 Sec. 1
Starting Time of Fans
Fans will start these many
seconds before the
compressor starts.
A0 “AFT PROBE ACTIVE” F 0 1 0 Flag 1
To activate Antifreeze(AFT)
Probe Function
0 = Disable AFT probe.
1 = Enable AFT probe.
0
A1 “AFT SET TEMP.” F -30 R6-1 4 C 1
Antifreeze Set Point for
AFT Probe
0
A2 “AFT DIFFERENTIAL” F 1 10 2 C 1
Differential for AFT Probe
P1 “WFS STARTUP DELAY” F 0 120 5 Sec 1
Flow switch alarm delayed
at power on
System will activate the alarm
only if the error persists for
more than the P1 secs at
system startup.
P2 “WFS NORMAL DELAY” F 0 90 5 Sec 1
Flow switch alarm delayed
during normal operation
If this parameter is set at 10
seconds, the system will
activate the flow switch alarm
only if the error persists for or
more than 10 seconds. In this
manner a false alarm can be
avoided during normal
operation.
P3 “LP START DELAY” F 0 120 40 Sec 1
Low Pressure Alarm
delayed during
compressor start up
If this parameter is set at 30
seconds, the system will
activate the low pressure
switch alarm only if the error
persists for or more than 30
seconds. In this manner a