OPERATING
INSTRUCTIONS
SZ-7510-C
www.pvrcontrols.com
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4
GENERAL DESCRIPTION
The Sub-Zero SZ-7510-C are aesthetically superior versions
of their predecessors. The SZ-7510-C 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-7510-C controller can be used for several applications
O
O
with a measuring range from -50.0 C to 50.0 C.
Instructions
: SZ-7510-C
INDEX
Para. Page
Description
To set the SET Point of the controller.
How to set other parameters.
To set Heating or Cooling function.
Max High Temp limit & alarm.
Min Low Temp limit & alarm.
To set Differential (Hysterisis).
Probe calibration.
Time Delay (relay restart after cutoff).
Keypad lock.
Relay status on probe failure.
To enable/disable power switch.
Unit ID.
Restore factory defaults.
End Programming.
Operating messages.
Technical Data.
Wiring diagram.
Panel cutout & dimensions.
P1
P2
P3
P4
P5
P6
LP
E1
PO
ID
FS
EP
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20-21
2
INDIA
To set other
Parameters
Display will show P1 & scroll
description of parameter.
To go to other parameters,
use UP/DOWN keys.
Press & hold
the DOWN(prg)
key for
2 seconds.
prg
Function : T
the controller.
o set the cut out point of
Display will show SET & scroll
description of parameter. 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
the SET
key for
2 Seconds.
hold
P3 -0.5 P2 +0.5
0.0
O
C
Min
Max
Fac.
3
SET
Changes : 12Vac/dc Wiring Diagram Added
