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Sub-Zero SZ-7510-C Operating Instructions
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Sub-Zero SZ-7510-C Operating Instructions

Sub-Zero SZ-7510-C Operating Instructions

Single set point controller
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INDIA
www.pvrcontrols.com
Instructions : SZ-7510-C
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
with a measuring range from -50.0 C to 50.0 C.
1
Function : T
Set point
the controller.
Press and
hold
Display will show SET & scroll
the SET
description of parameter. The set
key for
point value can now be changed by
2 Seconds.
using the UP/DOWN key. After
setting the desired value, press the
set key and you will see "- - -" which
SET
confirms that the set point has been
stored in memory.
Min
Max
Fac.
O
P3 -0.5 P2 +0.5
0.0
C
3
O
o set the cut out point of
OPERATING
INSTRUCTIONS
SZ-7510-C
INDEX
Para. Page
Description
3
To set the SET Point of the controller.
4
How to set other parameters.
5
To set Heating or Cooling function.
P1
P2
6
Max High Temp limit & alarm.
P3
7
Min Low Temp limit & alarm.
P4
8
To set Differential (Hysterisis).
9
P5
Probe calibration.
10
Time Delay (relay restart after cutoff).
P6
11
Keypad lock.
LP
12
Relay status on probe failure.
E1
PO
13
To enable/disable power switch.
14
Unit ID.
ID
15
Restore factory defaults.
FS
16
End Programming.
EP
17
Operating messages.
18
Technical Data.
Wiring diagram.
19
20-21
Panel cutout & dimensions.
2
To set other
Parameters
Press & hold
Display will show P1 & scroll
the DOWN(prg)
description of parameter.
key for
To go to other parameters,
2 seconds.
use UP/DOWN keys.
prg
4

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Summary of Contents for Sub-Zero SZ-7510-C

  • Page 1 How to set other parameters. The Sub-Zero SZ-7510-C are aesthetically superior versions To set Heating or Cooling function. of their predecessors. The SZ-7510-C is a single set point Max High Temp limit & alarm. controller. It is specifically designed for refrigeration applications wherein the compressor cuts off at set point and is Min Low Temp limit &...
  • Page 2 Function : T o set controller for heating Function : T o set maximum allowable Parameter Parameter high temperature limit. or cooling. o change Use UP/DOWN keys to get desired o change Use UP/DOWN keys to set desired the P1 value &...
  • Page 3 Function : To lock keypad. Function : Relay status on Parameter Parameter Probe Failure. To change Use UP/DOWN keys to set desired To change Use UP/DOWN keys to set desired the LP value. the E1 value. parameter This parameter can lock the keypad parameter When set to press the...
  • Page 4 Probe tolerance at 25 C : +/- 0.3 C Suggested Wiring Diagram Suggested Wiring Diagram 230V RELAY RELAY ac/dc RS485 RS485 PROBE PROBE To SZ-N75 To SZ-N75 PHASE PHASE NEUTRAL NEUTRAL Caution:Wiring for 230Vac load only 10mm PANEL Side Lock GASKET 34.5mm 19mm 71mm CONTROLLER SZ-7510-C...

  • Page 5: Pvr Controls

    Installation : Fixing and dimensions of panel models: CAUTION To fix the unit, slide the fastener 1 through the guides 2 WIRING: The probe and its corresponding wires should never as per the position shown in the figure. Move the fastener in be installed in a conduit next to control or power supply lines.