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P1
Function : T
Parameter
or cooling.
T
o change
Use UP/DOWN keys to get desired
the P1
value & press set to confirm.
parameter,
press the
CLG: Cooling mode and
SET key.
HTG: Heating mode.
Min
Max
Fac.
CLG
HTG CLG
5
P3
Function : To set minimum
Parameter
allowable low temperature set point.
To change
Use UP/DOWN keys to set desired
the P3
value.
parameter,
Once set at a particular value, this
will not allow the set point to go
press the
SET key.
below this value.
Min
Max
Fac.
Example : Setting this parameter at
O
-50.0 C will not allow the set point to
O
O
-50.0 C
-50.0 C
SP-0.5
go below -50.0 C. Also, if the
temperature reaches -50.0 C, the
display will show LT (Low Temp.)
LT
indicating that the temperature has
gone below the value in this
(Message on display)
parameter.
7
P5
Function : To set probe calibration.
Parameter
To change
Use UP/DOWN keys to set desired
the P5
value.
parameter,
In time it may be possible that the
press the
display may be offset by a degree or
SET key.
so.
To compensate for this error, you
may need to add or minus the
degrees required to achieve the
correct temperature. Setting value
is from -10.0 C to +10.0 C.
Min
Max
Fac.
Example : The temperature on
the display is 28.0 C, whereas the
O
O
O
-10.0 C
10.0 C
0.0 C
actual temperature is 30.0 C. You
will need to set the P5 mode to 2.0,
which means that once out of the
p r o g r a m m i n g
temperature will show 30.0 C
O
(28.0 C + 2.0 C).
9
o set controller for heating
O
O
O
O
O
O
m o d e ,
t h e
O
O
P2
Function : T
o set maximum allowable
Parameter
high temperature limit.
T
o change
Use UP/DOWN keys to set desired
the P2
value.
parameter,
Once set at a particular value, this
press the
will not allow the set point to go
SET key.
above this value.
Min
Max
Fac.
Example : Setting this parameter
O
at 50.0 C will not allow the set point to
O
O
SP+0.5
50.0 C
50.0 C
go above 50.0 C. Also, if the
temperature reaches 50.0 C,the
HT
display will show HT(High Temp.)
indicating that the temperature has
(Message on display)
gone above the value in this
parameter.
6
P4
Function : To set the differential.
Parameter
To change
Use UP/DOWN keys to set desired
the P4
value.
parameter,
Differential between cut out and cut
press the
in temperature can be set between
O
SET key.
1.0 C to 20.0 C.
Min
Max
Fac.
Example (in cooling mode) :
If the set point is set at 10.0 C and
O
O
O
0.5 C
20.0 C
2.0 C
differential is set at 2.0 C, then
when the system reaches 10.0 C,
the relay will cut out. Since the
differential is 2.0, the relay will cut in
(restart) at 12.0 C (10.0 C+2.0 C).
8
P6
Function : To set time delay
Parameter
between relay restart time.
To change
Use UP/DOWN keys to set desired
the P6
value.
parameter,
This parameter is used to protect the
press the
compressor from restarting in a short
SET key.
period of time and can be set
between 0 to 20 minutes.
Min
Max
Fac.
Example : If this parameter is set at 3
minutes, the relay will cut off at the
0 Min 20 Min 3 Min
set temperature, but will not restart
for a minimum of 3 minutes, even if
the differential is achieved earlier.
This parameter is good to protect the
life of the compressor when there are
p o w e r f l u c t u a t i o n s a n d t h e
Flashing
compressor is switched off and on
within a few seconds.
Time delay in progress
10
O
O
O
O
O
O
O
O
O
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