10
R1 & time delay of setpoint 1
will flash. Use UP/DOWN keys to set
desired value. Once desired value is
achieved, press set key and you will
see “- - -” which confirms time delay for
set point 1 has been stored in memory.
After pressing UP key R2 flashes
alongwith the time delay for setpoint 2.
Use UP/DOWN keys to set desired,
value.Once desired value is
achieved, press set key and you will
see “- - -” which confirms time delay for
set point 2 has been stored in memory.
To prevent both compressors from
switching on together, there is an
internal 10 second time delay
between simultaneous startups
to prevent an electrical surge.
Function : Set time delay between relay
restart time for comp1 and comp2.
To change
P6 parameter,
press the
SET key.
Time delay R1
Time delay R2
P6
Parameter
Fac.
3 Min
Max
20 Min
Min
0 Min
Fac.
3 Min
Max
20 Min
Min
0 Min
R1
R2
8
P4
Parameter
Once in this mode, R1 and
differential of setpoint 1 will flash.
use UP/DOWN keys to set desired
value. Once desired value is achieved,
press set key and you will see “- - -” this
confirms differential for set point 1 has
been stored.
After up key is pressed
R2 flashes alongwith the differential
for set point 2. Use UP/DOWN keys to
set desired value. Once value is
achieved, press set key. This confirms
differential for setpoint 2.
0
Example
: If setpoint 1 is set at 10.0
C.
and differential for setpoint 1 is set
0
at 2.0 C, then when the system
0
reaches 10.0 C, the relay for
compressor 1 will cutout and since
O
the differential is 2.0 C the relay will
O
cutin(restart) at 12.0 C (10.0+2.0).
Function: To set the differential of
set point 1 and set point 2
To change
P4 parameter,
press the
SET key.
Differential 1 & 2
Differential 1 & 2
Max Fac.
0
20.0 C
0
0.5 C
Min
0
2.0 C
Max Fac.
0
20 C
0
1 C
Min
0
2 C
rS = 0
rS = 1
rS = Resolution
Set Parameter
9
Use UP/DOWN keys to set
desired value. In time it may be
possible that the display may be
offset by a degree or so.
To compensate for this error. you
may need to add or minus the degree
required to achieve the correct
temperature. Setting value is from
O
O
-10.0 C to + 10.0 C.
Example :
The temperature on the
O
display is 28.0 C, whereas the actual
O
temperature is 30.0 C. You will need
to set the P5 mode to 2.0, which
mean that once out of the
programming mode, the display
O
will show temperature 30.0 C
O
O
(28.0 C + 2.0 C).
To change
P5 parameter
press the
SET key.
Function : To set probe calibration.
P5
Parameter
Max Fac.
0
10.0 C
0
-9.0 C
Min
0
0.0 C
rS = 0
Max Fac.
0
10 C
0
-9 C
Min
0
0 C
rS = 1
rS = Resolution
Set Parameter
6
Function : To set maximum
allowable high temperature limit.
To change
P2 parameter,
Press the
SET key.
Use UP/DOWN key to set
desired value. Once set at a
particular value, this will not
allow both set points to go above
this value
.
Example :
Setting this parameter
0
at 30.0 C will not allow both set
0
points to go above 30.0 C. Also if
0
the temperature reaches 30.0 C, the
display will show Ht (High
Temperature), indicating that the
temperature has reached or gone
above the value in this
parameter.
XX = Highest Set Point
(Message on Display)
P2
Parameter
Max
Max
Fac.
Fac.
0
50.0 C
0
50 C
Min
Min
0
XX+1 C
0
50.0 C
0
50 C
rS = 0
rS = 1
rS = Resolution
Set Parameter
XX
0
+1.0 C
7
To change
P3 parameter,
press the
SET key.
Use UP/DOWN key to set
desired value. Once set at a
particular value, this will not
allow both set points to go below
this value
.
Example :
Setting this parameter
0
at 10.0 C will not allow both set
0
points to go below 10.0 C. Also if
0
the temperature reaches 10.0 C, the
display will show Lt (Low
Temperature), indicating that the
temperature has reached or gone
below the value in this
parameter.
Function : To set minimum
allowable low temperature limit.
(Message on Display)
P3
Parameter
XX = Lowest Set Point
0
0.0 C
0
0.0 C
Max Fac.
Min
rS = 0
0
XX-1 C
Max Fac.
0
0 C
0
0 C
Min
rS = 1
rS = Resolution
Set Parameter
XX
0
-1.0 C
5
P1 Parameter
Function: To set controller for heating
or cooling.
0
1
0
To change
the P1
parameter,
press the
SET key.
Use UP/DOWN keys to get
desired value & press set
to confirm.
0: Cooling mode and
1: Heating mode.
Min
Max
Fac.
NOTE : T2 parameter is activated
only when P1=0 (cooling).
