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The SZ-7511-WV controller can be used for several
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applications with a measuring range from -40 C to 99 C (1
C
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Resolution
) or -40.0 C to 50.0 C (0.1 C Resolution)
A number of parameters are displayed alphanumerically to set
up the instrument for each specific application.
Additionally these controllers offer several protection features
that are easily understood by the examples in the instructions
below. The controller can be used for heating applications,
when the P1 parameter is set to “1”.
The SZ-7511-WV are aesthetically superior versions of their
predecessors. The SZ-7511-WV is a single set point controller
It is specifically designed for refrigeration applications wherein
the compressor cuts off at set point and is restarted at a
temperature of set point plus differential.
Instructions
:
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INDEX
Para. Page
Description
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To set other
Parameters.
Display will show P1 & flash.
To go to other parameters,
use UP/DOWN keys.
Press & hold
the DOWN(prg)
key for
2 seconds.
prg
To set the SET Point of the controller.
How to set other parameters.
To set Heating or Cooling function.
Max High Temp limit.
Min Low Temp limit.
To set Differential (Hysterisis).
Probe calibration.
Time Delay (relay restart after cutoff)
Keypad lock.
Relay status on probe failure.
To enable/disable power switch.
To change the resolution.
Restore factory defaults.
End Programming.
Operating messages.
Technical Data.
Suggested Wiring diagram.
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P1
P2
P3
P4
P5
P6
LP
E1
PO
RS
FS
EP
Function: To set the cut out point
of the controller.
Display will change to set value.
The set point value can now be
changed by using the UP/DOWN
key. After setting the desired
value, press the set key and you
will see “- - -” which confirms that
the set point has been stored in
memory.
Set point
Press and hold
the SET
key for
2 Seconds.
Min
Max
Fac.
SET
RS = 0
Min
Max
Fac.
RS = 1
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0.0 C
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0 C
P3
P3
P2
P2
www.pvrcontrols.com
INDIA
OPERATING
INSTRUCTIONS
SZ-7511-WV
