20
21
4.4 Parameter Description & Values
0
C :
Temperature in degree centigrade
Flag :
Operating status/condition.
Para :
Parameter
M.U.:
Measuring Unit
MAX :
Maximum settable Limit
Set By :
U = User, F = Factory
mini :
time in minutes
MIN :
Minimum settable Limit
Fac. :
Factory set values
Sec :
time in seconds
Var :
Variation
Set
Para
Description
MIN MAX Fac. M.U.
Var.
by
Also, if the temperature
Restart
minimum of 3 minutes. This
C1
Time Delay for Compressor
F
0
10
3
Min
1
compressor will cut off at
the set temperature,
will activate.
e.g. If this parameter is set
but will not restart for a
time delay is also effective
at ‘Power On’ of the
at 3 minutes, the
and at this point the alarm
0
reaches -15 C the display
will show LT(Low Temp)
system. This safety feature
is used to protect the
compressor from restarting
within a short period due to
power fluctuations.
F1
Fan Operating Mode
F
0
1
0
Flag
1
0 = Fan always On
is ON.
1 = On when compressor
Fans will start these many
seconds before the
compressor starts. This
F2
Starting Time of Fans
F
0
120
20
Sec.
1
helps in preventing sudden
increase in pressure and
power surges.
A0 To activate Antifreeze
Probe
F
0
1
0
Flag
1
0 = Deactivate Antifreeze
Probe
1 = Activate Antifreeze
Probe
0
A1
Antifreeze Set Point for
F
-30
R1
4
C
1
AFT Probe
Set
Para
Description
MIN MAX Fac. M.U.
Var.
by
0
set point to go below -15 C
temperature on the controller
T1
Setting Procedure same as
0
T1
Control Probe Calibration
U
-10
10
0
C
0.5
meter to -2 and once out of
this mode, the temperature
and the temperature
0
0
.
will display 20 C (22-2 C)
displayed, e.g. if the actual
0
T2
AFT Probe Calibration
U
-10
10
0
C
0.5
0
R1
Set Point for Control Probe
U
-30
50
10
C
0.5
in the actual temperature
During the course of time
there may be a slight offset
0
temperature is 20 C and the
0
shows 22 C, set this para-
0
R3
Maximum Cooling Set Point
F
1
10
2
C
0.5
0
R2
Cooling Differential
F
1
10
2
C
0.5
range, this will not allow the
point the alarm will activate.
range and below R4 setting
set point to go above this
0
R4
Minimum Cooling Set-Point
F
-30
R3
-30
C
0.5
set point to go below this
range and above R3 setting
(Page no 15)
0
25 C the display will show
Once set at a particular
0
at 25 C will not allow the
Once set at a particular
range, this will not allow the
e.g. Setting this parameter
0
set point to go above 25 C.
0
at -15 C will not allow the
e.g. Setting this parameter
If the temperature reaches
HT(High Temp) & at this
