Sub-Zero SZ-7510-C Operating Instructions Download Page 3

11

LP 
Parameter

NO

YES

NO

Function : To lock keypad.

To change 
the LP 
parameter
press the 
SET key.

Use UP/DOWN keys to set desired 
value.
This parameter can lock the keypad 
so that tampering is not possible by 
by-standers.

NO = keypad unlocked
YES = keypad locked 

When  locked  all  parameters  can 
only be viewed, but not modified.

Min

Max

Fac.

12

E1 
Parameter

ON

OFF

CYC

Function : Relay status on
Probe Failure.

Min

Max

Fac.

To change  
the E1 
parameter
press the 
SET key.

Use  UP/DOWN  keys  to  set  desired 
value.
When set to 
ON = Relay status is ON. 
CYC = Relay performs duty cycle of
           10 minutes ON and 4minutes
           OFF. 
OFF = Relay status is OFF.

13

PO 
Parameter

Function : To enable/disable Power 
Switch 

DIS

ENB

DIS

Min

Max

Fac.

To change 
the PO 
parameter 
press the 
SET key.

Use UP/DOWN keys to get desired 
value & press SET key to confirm.

DIS = Disable power switch
ENB= Enables power switch

Controller has power switch, which
if enable puts controller in active or
stand by state.
If press for 2 seconds controller will 
go in stand by mode, display will 
show “OF”
To again switch to ACTIVE 
WORKING MODE, press power 
switch again for 2 seconds. All
leds and 7-segment display will flash 
and enter into NORMAL WORKING
MODE.

14

ID 
Parameter

Function : To set unit ID.

1

240

1

Min

Max

Fac.

To change 
the ID
parameter 
press the 
SET key.

Use UP/DOWN keys to get desired 
value & press SET key to confirm.

With this parameter one can set the
unit ID of the device.

15

FS 
Parameter

Function : To restore default
settings of the controller.

NO

YES

NO

Min

Max

Fac.

To change 
the FS 
parameter 
press the 
SET key.

When set to ‘YES’ all parameters
are programmed to factory
values.
Useful to debug setting
related problems.

16

EP 
Parameter

To end
programming 
press the 
SET key.

Once the 

 key is pressed, the 

control goes into the normal mode 
and displays the temperature and 
all settings are recorded.

SET

Function: To end programming.

Summary of Contents for SZ-7510-C

Page 1: ...e 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 diagra...

Page 2: ...ge the P6 parameter press the SET key Min Max Fac Use UP DOWN keys to set desired value This parameter is used to protect the compressor from restarting in a short period of time and can be set between 0 to 20 minutes Example If this parameter is set at 3 minutes the relay will cut off at the set temperature but will not restart for a minimum of 3 minutes even if the differential is achieved earli...

Page 3: ...h ENB Enables power switch Controller has power switch which if enable puts controller in active or stand by state If press for 2 seconds controller will go in stand by mode display will show OF To again switch to ACTIVE WORKING MODE press power switch again for 2 seconds All leds and 7 segment display will flash and enter into NORMAL WORKING MODE 14 ID Parameter Function To set unit ID 1 240 1 Mi...

Page 4: ...echnical data Dimensions Front 75 X 34 5 MM Depth 71 MM w o back lid Panel Cutout 29 X 71 mm Mounting Flush panel mounting with fasteners Frontal protection I P65 Connections Screw terminal blocks 2 5sqmm one wire terminal only Display 3 X17 mm 0 67 LED Data storage Non volatile EEPROM memory Power input 230Vac 15 50 60Hz Other on request O O Operating temp 5 C to 50 C non condensing O O Storage t...

Page 5: ...rreparable damage and personal injury Kindly ensure that wiring is done by qualified personnel only Maintenance Cleaning Clean the surface of the controller with a soft moist cloth Do not use abrasive detergents petrol alcohol or solvents Notice The information in this document is subject to change in order to improve reliability design or function without prior notice and does not represent a com...

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