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16

Sr. 

No. 

Parameter setting method

Description of parameters and functions.

Parameter 

Use UP/DOWN keys to set desired value.

Parameter

L1

18

Function :

 To set Evaporator Fan stop 

temperature.

To change the L1 parameter, 
press the set key.

-40.0ºC

50.0ºC

2.0ºC

Range

Min 

Max 

   Fact. Set 

Parameter

L2

19

Function :

 To set Evaporator Restart 

Delay.

To change the L2 parameter, 
press the set key.

0 Min

20 Min

1 Min

Range

Min 

Max 

   Fact. Set 

Use UP/DOWN keys to set desired value.

L3
Parameter

20

Function :

 To set Evaporator Fan status 

at compressor off.

To change the L3 parameter, 
press the set key.

OFF

ON

ON

Range

Min 

Max 

   Fact. Set 

L4
Parameter

21

Function :

 To set Evaporator Fan 

differential.

To change the L4 parameter, 
press the set key.

0.5ºC

20.0ºC

2.0ºC

Range

Min 

Max 

   Fact. Set 

15

Sr. 

No. 

Parameter setting method

Description of parameters and functions.

Parameter 

ON  : Condenser will be ON

This  function  is  used  to  decide  the 
condenser status when hot gas defrost is 
ON. This parameter is not applicable for 
Heater defrost.
At hot gas defrost,
OFF : Condenser will  be OFF

Use UP/DOWN keys to set desired value.

CND7
Parameter

17

Function :

 To set condenser status at 

hot gas defrost.

To change the CND7 
parameter, press the set key.

OFF 

ON 

OFF

Range

Min 

Max 

   Fact. Set 

QFD
Parameter

15

Function :

 To set quick freeze duration.

To change the QFD Parameter, 
press the set key.

Use UP/DOWN keys to set desired value.

This  is  the  maximum  amount  of  time 
allowed  for  Quick  Freeze.  If  set  to  “0”, 
there will be no quick freeze.

1hr.

Example : 

If QFS is set to -20.0ºC, and 

quick freeze duration is set to 1 hr ,then 
when it is in quick freeze mode, then the 
Comp. will work on -20.0ºC set point for 

0 Hr

12 Hrs

2 Hr

Range

Min 

Max 

   Fact. Set 

Parameter

CND6

16

Function :

 To set condenser ON delay 

timings.

To change the CND6 
parameter, press the set key.

When Compressor delay over Condenser 
Fan  will  come  ON  first,  after  cond.  On 
delay over Comp will come ON.

Use UP/DOWN keys to set desired value.

0 Sec

30 Sec

15 Sec

Range

Min 

Max 

   Fact. Set 

Once the fan get OFF at L1 condition, it 
will not get restart until  L2 duration is over.

This  setting  is  used  to  limit  the  Max. 
temperature beyond which the Evap.Fan 
will cut off.

Example : 

If this parameter is set to 2.0ºC, 

then Evap. Fan will cut OFF at 2.0ºC.

Example : 

If this is set at 1 minutes, Evap. 

Fan relay will cut off at the set by Evap. 
Fan Stop TC. Parameter but the Fan will 
not come on for a minimum of 1 minutes 
even if it’s differential is achieved earlier.

Use UP/DOWN keys to set desired value.

        compressor OFF.

          compressor OFF.            

OFF :

 

Evaporator Fan will be OFF at 

ON : Evaporator Fan will be ON at 

Use UP/DOWN keys to set desired value.

(2.0ºC-2.0ºC = 0.0ºC) (L1 - L4)

Example : 

If L1parameter is set to 2.0ºC, 

and  if  Evaporator  Fan  differential   
parameter is set to 2.0ºC,then Evap. Fan 
will  cut  off  at  2.0ºC  and  restart  only  at 
0.0ºC.

Содержание CRC-2052

Страница 1: ......

Страница 2: ...Oil Pressure Switch OPS I P Index 02 Index DESCRIPTION PARAMETER Pg No To set Evaporator Fan stop temperature To set Evaporator Restart Delay To set Evaporator Fan status at compressor off To set Evap...

Страница 3: ...e compressors from close starts In case of probe error or temperature alarm the instrument signals the event through acoustic signal and by closing the relay contact By pressing the mute key the buzze...

Страница 4: ...Set mode Also used as enter key if controller is in Set mode program mode Also used to save changed value Used to enter in manual defrost and to stop defrost if defrosting is ON Used to enter in fault...

Страница 5: ...ON OFF ON OFF Flashing ON OFF Flashing ON OFF ON OFF ON OFF OFF ON ON OFF ON OFF ON OFF ON OFF 07 High temperature alarm for Room temperature means room temperature is equal or above the set value of...

Страница 6: ...enerate HTAlarm SP 0 5 C 50 0 C 50 0 C Range Min Max Fact Set Message on Display Message on Display 02 P3 Parameter Function To set allowable low temperature limit Example Setting this parameter at Us...

Страница 7: ...press the set key To change P5 parameter 04 Function To set room probe calibration 10 0 C 10 0 C 0 0 C Range Min Max Fact Set 11 Sr No Parameter setting method Description of parameters and functions...

Страница 8: ...f a power failure P10 Parameter 09 Function To set type of defrost To change the P10 Parameter press the set key Use UP DOWN keys to set desired value HTR HTG HTR Range Min Max Fact Set HTR Heater def...

Страница 9: ...e the QFD Parameter press the set key Use UP DOWN keys to set desired value This is the maximum amount of time allowed for Quick Freeze If set to 0 there will be no quick freeze 1hr Example If QFS is...

Страница 10: ...10 0 C to 10 0 C may be offset by a degree or so To compensate for this error you may need to add or minus the degrees required to achieve the correct temperature Setting Use UP DOWN keys to set desi...

Страница 11: ...mpressor current is greater than 15 0 A then and exist till C2 current sensing delay then C OL fault exists and flash on display Compressor will be tripped on this fault NOTE 20 50A CT option availabl...

Страница 12: ...l Mode Use UP DOWN keys to set desired value AUTO Auto mode TON Parameter press the set key To change TON parameter 39 Range Min Max Fact Set Range Min Max Fact Set At room probe fail condition when E...

Страница 13: ...er press the SET key 0 Min 30 Min 7 Min Range Min Max Fact Set Range Min Max Fact Set Parameter LSD Use UP DOWN keys to set desired value 44 Function This parameter is used to enable disable light rel...

Страница 14: ...unction To set display at power OFF mode Use UP DOWN keys to set desired value OFF Display will show OFF TEMP Display will show Temperature LED Display Will be Blank At power OFF mode power OFF LED wi...

Страница 15: ...tion 0 1 C LSV Relay 10A 230vac Resolution 0 1Amp RS485 Connectivity Modbus RTU Protocol Mounting Wall mounting Controller CRC 2052 0 0 Operating Temp 5 C to 50 C non condensing 0 0 Storage temp 20 C...

Страница 16: ...w Connection Diagram To set fault recover delay Get to know your Controller 29 Introduction 29 Instruction Manual LVM Line Voltage Monitor Three Phase VMRC 10 3 Introduction VMRC 10 3 is three phase L...

Страница 17: ...more than TTD value then only fault is raised and this fault is applicable to Under voltage Over voltage and Unbalance fault i e In case of Phase Loss or Phase sequence fault alarm will come immediate...

Страница 18: ...s to set desired value This parameter provided to calibration voltage reading When dsP is L n then it sets calibration for r n Sr No Parameter setting method Description of parameters and functions Pa...

Страница 19: ...7 8 9 R 15 17 19 21 Y B N General Specification Under voltage and Over voltage detection Application Voltage and phase sequence monitoring and controlling Connections Screw terminals 2 5sqmm one wire...

Страница 20: ...36...

Страница 21: ...part of this manual may be reproduced or transmitted in any form or by any means without the prior written permission of the company Notice Disclaimer Warranty This manual its contents remain the sole...

Страница 22: ...s Globe Valves Hand Valves Flow Switches Solenoid Valves OUR OTHER PRODUCTS Cold Room Controller Chiller Controller Two Compressors Controller Heating Controller Humidity Controller Pressure Controlle...

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