Sub-Zero SZ-7511-WV Operating Instructions

INDIA
www.pvrcontrols.com
Instructions :
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.
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".
A number of parameters are displayed alphanumerically to set
up the instrument for each specific application.
The SZ-7511-WV controller can be used for several
applications with a measuring range from -40 C to 99 C (1
Resolution O O
) or -40.0 C to 50.0 C (0.1 C Resolution)
1
Set point Function: To set the cut out point
of the controller.
Press and hold
Display will change to set value.
the SET
The set point value can now be
key for
changed by using the UP/DOWN
2 Seconds.
key. After setting the desired
value, press the set key and you
will see "- - -" which confirms that
SET
the set point has been stored in
memory.
RS = 0
Max
Min Fac.
O
P3 P2 0.0 C
RS = 1
Min Max Fac.
O
P3 P2 0 C
3
O O O
C
O
OPERATING
INSTRUCTIONS
SZ-7511-WV
INDEX
Para. Page Description
3 To set the SET Point of the controller.
4 How to set other parameters.
P1 5 To set Heating or Cooling function.
P2
6 Max High Temp limit.
P3
7 Min Low Temp limit.
P4
8 To set Differential (Hysterisis).
P5
9 Probe calibration.
P6 10 Time Delay (relay restart after cutoff)
LP
11 Keypad lock.
E1
12 Relay status on probe failure.
PO
13 To enable/disable power switch.
RS
14 To change the resolution.
FS 15 Restore factory defaults.
EP
16 End Programming.
17 Operating messages.
18 Technical Data.
19 Suggested Wiring diagram.
2
To set other
Parameters.
Press & hold Display will show P1 & flash.
the DOWN(prg) To go to other parameters,
key for use UP/DOWN keys.
2 seconds.
prg
4