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1. INDIA www subzero co COLD ROOM CONTROLLER USER MANUAL CRC 1100A PARAMETER DESCRIPTION Poneman XERE pF ete kew Your Gontoter Po Items Included TT Taran PT a E How to set other parameter To set Maximum allowable High Temperature limit To set Minimum allowable low Temperature limit To set comp Differential Hysterisis E To set room Probe offset calibration ial To set time delay between comp relay restart 7 time To set drip time for defrost water to drain out To set comp relay status on room probe T failure Cyclic ON time Cyclic OFF time E To set door open alarm delay E Evap Fan stop coil temp RA To set time delay between Evap fan relay restart time Evap Fan operation when compressor is off E Evap fan differential hysteresis Eg To set coil probe offset calibration evap fan coil probe Evap fan status during defrost e Evap fan status on door open E To set Condenser delay to start before comp j F To set Condenser relay status during Hot gas 10 d2 Parameter defrost QUIC To set quick freeze set point 10 CS Parameter CRC1100A Index PARAMETER DESCRIPTION To set Quick Freeze time duration To set activate power up defrost cycle To set type of defrost To set type of computation for defrost 1 frequency To set Defrost frequency To set Maximum defrost duration Defrost stop temperatu2. Condenser will be ON during Hot gas defrost Function To set quick freez set point Use UP DOWN key to set desired value Example If this is set to 5 C and quick freeze time duration is set to 1 hr then when it is set to quick freeze mode the compressor will take 5 C set point for 1 hr Function To set Quick Freeze OHrs 30Hrs time duration Use UP DOWN key to set desired value This is maximum amount of time allowed for Quick Freeze If set to 0 there will be no quick freeze Example See CS parameter Function To set activate 3 power up defrost cycle Use UP DOWN key to set desired value This parameter will decide to start power up defrost or not O No power up defrost 1 Power up defrost after 1 Hr 2 Power up defrost after 2 Hr 3 Power up defrost after 3 Hr Example This parameter will help to achieve first defrost 10 To change the E1 parameter press the SET key E2 Parameter To change the E2 parameter press the SET key E3 Parameter To change the E3 parameter press the SET key E4 Parameter cycle in short amount of time after power on If E3 lt E0 then power up defrost cycle will be ignore as frequency defrost cycle achieved before power up defrost cycle Use UP DOWN key to set desired value 0 Heater defrost in which case compressor off heater on 1 Hot gas defrost where compressor on heater on 2 Time based defrost
3. On Evap Relay Off L1 L4 L2 sa a a Cond Relay On Cond Relay Off P6 d1 flashing Cond Relay Timedelay HP LP TRIP OSS HEATER FAULT E HP LP OSS pressure has tripped and a signal has been sent through the Digital Input Temp of coil has not risen by 10 C within 50 of the defrost time Technical Data Housing Dimensions Panel Mounting Connection Display Data Storage Power Input Operating Temp Storage temp Output Cond Fan Relay Other Relay Alarm Relay Input Resolution Accuracy Range CRC1100A ABS Plastic Front 96 x 96 MM Depth 110 MM 92X92mm Panel Screw Terminal lt 2 5sq mm one wire terminal only 2X14 2mm 0 56 LED LCD Non Volatile EEPROM Memory 230 V 50 HZ 60 HZ AC Others on request 5 C to 50 C non condensing 20 C to 70 C non condensing 8 3 A 250Vac 8 2 A 250Vac 5A 250Vac 2 NTC Probe 4 C 2 1 C 50 C to 50 C 14 30 Min E4 Parameter Setting 6 Hrs E3 P ter Setti rs E3 Parameter Setting DEFROST UNIT ON 30 Min E4 Parameter Setting 6 Hrs E3 Parameter Setting 30 Min E4 Parameter Setting DEFROST 30 Min E4 Parameter Setting 4 Hours DEFROST 6 Hrs E3 Parameter Setting DEFROST UNIT ON Manual Defrost Key Pressed 6 Hours 6 Hours 4 No Defrost because coil temp gt 8 C E5 Parameter UNIT ON 6 Hours 4 Hours UNIT O
4. you may need to add or minus the degrees required to achieve the correct temperature Example The temperature on the LCD is 28 C whereas the actual temperature is 30 C You will need to set this parameter to 2 C which means that once out of programming mode the temperature will show 30 C 28 C 2 C Function Evap fan status during defrost Use UP DOWN key to set desired value 1 Evap Fan will stay OFF during defrost 0 Evap fan will stay ON during defrost Function Evap fan status on door open Use UP DOWN key to set desired value This parameter controls the evap fan on off status depending on the digital input Door input 0 Evap Fan will stay ON door fault 1 Evap fan will turn stay OFF with door fault CRC1100A To change the d1 time parameter press the SET key d2 Parameter To change the d2 time parameter press the SET key CS Parameter To change the CS parameter press the SET key Ct Parameter To change the Ct parameter press the SET key EO Parameter To change the EO parameter press the SET key CRC1100A Use UP DOWN key to set desired value Example If this parameter set to 10 sec and P6 3 min then condenser will turn ON 10 seconds before compressor Function To set Condenser relay status during Hot gas defrost Use UP DOWN key to set desired value 0 Condenser will be OFF during Hot gas defrost 1
5. If you set this parameter to 20min once the power is switch on the alarm for Ht Lt will not activate for 20 minutes after the power is switched on This is most useful to avoid the nuisance alarms when the ambient are high when machine is switched on after long time Use UP DOWN key to set desired value This parameter can lock the keypad so that tampering is not possible by by standers 1 Activates keypad lock 0 De activates keypad lock On activation all the parameters can only be viewed but not modified Function Revert to factory set parameters Use UP DOWN key to set desired value 1 Revert to factory set parameters Useful to debug setting problems When set to 1 all parameters are programmed to factory set vales Function To end programming Once the set key is pressed the control goes into the normal mode and displays the temperature and all settings are recorded CRC1100A Operating Messages and Icon Status Message Mode Description Parameter Temperature above the maximum limit of the set point Probe short circuit circuit open or without probe or temperature gt 50 C or lt 50 C Comp Relay On Comp Relay Off Comp Relay Timedelay P2 Temperature below the minimum limit P3 of the set point P3 SP P4 P6 Alarm Ht Lt PP HP LP trip heater fault Keypad locked unlocked Defrosting in progress E3 E4 E5 i aw AD Evap Relay
6. N Depends on E4 amp E5 Parameter whichever achieved earlier 30 Min E4 Parameter Setting DEFROST 6 Hours 4 4 No Defrost Manual Defrost Pressed if E4 0 as E4 0 No Defrost Fixing and dimensions Installation W Panel cutout CRC1100A 10 00 mm CRC1100A Max 6 00mm_ 96 00 mm 90 00 mm 222222222 D TT T TT T TT f CLAMPS 2NOS Suggested Wiring Diagram Controller Controller should be installed in a place protected by vibration water and corrosive gasses and where ambient temperature does not exceed the values specified in the technical data Probe To give a correct reading the probe must be installed in a place protected from thermal influences which may affect the temperature to be controlled CAUTION WIRING The probe and its corresponding wires should never be installed in a conduit next to control or power supply lines The electrical wiring should be done as shown in the diagram The power supply circuit should be connected to a protection switch The terminals admit wires of upto 2 5sq mm WARNING Improper wiring may cause irreparable 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 impr
7. e This is time for which the Fan Compressor Condenser Heater will stay OFF so that the defrost water can drip and drain out It can be set between 0 to 20Min Function To set comp Relay status on room probe failure Use UP DOWN key to set desired value 0 Compressor relay ON 1 Compressor relay performs a duty cycle of on minutes and oF minutes see next two parameter see Sr 9A and 9B 2 Compressor relay OFF Function If P8 1 Cyclic ON time Use UP DOWN key to set desired value This is cyclic ON time of Comp relay This parameter will be active only when P8 1 CRC1100A 1E Function If P8 1 Cyclic OFF 20Min To change the Off time parameter press the SET key To change the P9 parameter press the SET key L1 parameter press the SET key L2 Parameter To change the L2 parameter press the SET key L3 Parameter To change the L3 parameter press the SET key CRC1100A Use UP DOWN key to set desired value This is cyclic OFF time of Comp relay This parameter will be active only when P8 1 Function To set door open OMin 30MIn 10Min alarm delay Use UP DOWN key to set desired value Example If P9 10 minutes alarm for door open fault will be generated if door open fault present for 10 minutes Function Evap Fan stop coil 50 C 50 C temp Use UP DOWN key to set desired value This setting is used to limit
8. here will be no defrost cycle Function Defrost stop temperature Evap coil probe Use UP DOWN key to set desired value This is the maximum temperature allowable at which the defrost process will stop Example If this parameter is set to 7 C then if defrosting is in progress then when E5 temperature reaches 7 C the defrost process will stop Use UP DOWN key to set desired value 0 No buzzer or indication 1 Buzzer will come on incase the temperature of the coil has not risen by 10 C within 50 of the defrost time E4 Activated when E1 0 Heater defrost Function To set display 1 during defrost Use UP DOWN key to set pi desired value 0 Display will show room temperature 1 display will show dF during defrost Function To set maximum 41Min 10Min 5Min defrost duration on coil probe fail Use UP DOWN key to set desired value This is the maximum amount of time allowed for a defrost during coil probe fail Example If this is set to 5 minutes then defrost for 5minutes will take place during coil probe fail 12 13 AL Parameter To change the AL parameter press the SET key To change the LP parameter press the SET key FS Parameter To change the FS parameter press the SET key programming press the SET key Function Power on time delay for Alarm HT LT Use UP DOWN key to set desired value Example
9. independent of evap coil probe temperature Works with E4 time duration Comp Condenser Heater will be off during this type of defrost Function To set type of computation for defrost frequency Use UP DOWN key to set desired value 0 Total of real time This means that the time calculation for defrost frequency will be for the total hours the unit has been running 1 Sum of total compressor operating times This means that for time calculation the unit will add the total time the compressor has been in an ON mode CRC 1100 A keeps a records of the number of hours worked Yg hour incase of a power failure Example If E3 is set to 6 hrs and 3 40 hrs have passed after unit has started and power fails then defrost cycle will start after 3 30 hours when power resumes Function To set Defrost 1Hrs 31Hrs 6Hrs frequency Use UP DOWN key to set desired value This is the amount of time between two defrost cycles Function To set Maximum OMin 99Min 30Min defrost duration CRC1100A To change the E4 parameter press the SET key E5 Parameter To change the E5 parameter press the SET key To change the E6 parameter press the SET key E7 Parameter To change the E7 parameter press the SET key To change the E8 parameter press the SET key CRC1100A Use UP DOWN key to set desired value This is the maximum amount of time allowed for a defrost If set to 0 t
10. isplay will show Ht High temp indicating that temperature has gone above the value in this parameter and at this point the alarm relay and buzzer will come on 05 SP 1 C 50 C 50 C CRC1100A L P3 Parameter To change the P3 parameter press the set key P4 Parameter To change the P4 parameter press the SET key i P5 Parameter To change the P5 parameter press the SET key CRC1100A Function To set minimum 50 C CS 1 C 50 C allowable low temperature limit Use UP DOWN key to set desired value Ones set at a particular value this will not allow the CS QF Set Point to go below this value Example Setting this parameter at 30 C will not allow the CS point to go below 30 C Also if the temperature reaches 30 C the display will show Lt Low temp indicating that temperature has gone below the value in this parameter and at this point the alarm relay and buzzer will come Use UP DOWN key to set desired value Differential between cutout and cutin temperature can be set between 1 C to 20 C Example If the set point is set at 10 C and differential is set at 2 C then when the system reaches 10 C the comp Relay will cutout Since the differential is 2 C the comp Relay will cutin at 12 C 10 C 2 C Function To set room probe 10 C 10 C o c offset calibration Use UP DOWN key to set desired value In time it may be possible
11. lay Down key Quick Freeze This key used to put controller in quick freeze mode To activate this mode press QF key for 4 seconds The compressor operates in this mode for time duration set through quick freeze time duration Ct parameter and set pint through Quick freeze set point CS parameter UP key Paraneer Parameter setting method Function To set the cutout point of the controller Press and hold set Display will change to set key for 4 seconds value and set value will flash and release on display The set point value can now be changed by using 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 P2 Max allowable high temp limit CS Quick Freeze Set Point CS 1 C P2 1 C 0 C 2 To Set other parameter Vv Hold UP and Display will show P2 and will oa DOWN keys flash To go to other simultaneously for parameters use up down w 4seconds keys Function To set maximum J allowable high temperature P2 Parameter limit To change the P2 parameter press the set key Use UP DOWN key to set desired value Ones set at a particular value this will not allow the set point to go above this value and below Quick Freeze Set Point CS Example Setting this parameter at 25 C will not allow the set point to go above 25 C Also if the temperature reaches 25 C the d
12. ll be repaired or at our option replaced at no charge This warranty does not apply if the product has been damaged by accident abuse and misuse or as a result of service or modification other than by the company This warranty is in lieu of any other warranty expressed or implied In no event shall the company be held liable for incidental or consequential damages such as lost revenue or lost business opportunity arising from the purchase of this product PHASE INPUT FROM PRESSURE HP LP OSS TRIP CONTACT ROOM DIGITAL I P COIL HEATER ALARM PHASE INPUT FROM PRESSURE HP LP OSS TRIP CONTACT FAN NEUTRAL 17 CRC1100A CRC1100A 18 QUR OTHER PRODUCTS INDIA Cold Room Coniroller Chiller Controller Two Compressors Controller Heating Controller Humidity Controller Pressure Controller CASTLE Ball Valves Globe Valves Hand Valves Flow Switches Solenoid Valves 00 19 09 11
13. maximum temperature beyond which the evap fan will cutoff Function To set time delay between evap fan relay restart time Use UP DOWN key to set desired value Example If this is set 3 minutes the evap fan relay will cutoff at the temp set by L1 parameter Fan stop temp but the fan will not come on for a minimum of 3 minutes if L4 is achieved earlier Function Evap Fan operation when compressor is off Use UP DOWN key to set desired value 0 Evap fan OFF when compressor is OFF 1 Evap fan will be stay ON when compressor will be off Example If this parameter is set to 1 then when comp OFF evap fan will remain ON L4 Parameter To change the L4 parameter press the SET key LEE PPH L5 Parameter To change the L5 parameter press the SET key To change the L6 parameter press the set key L7 parameter To change the L7 parameter press the SET key 09 Function Evap fan PC 20 C 2 C differential hysteresis Use UP DOWN key to set desired value Example If L1 parameter Evap fan stop temp is set to 2 C and the L4 is set to 2 C then evap fan will cut off at 2 C and restart only at 0 C Function To set coil probe offset calibration evap fan coil probe Use UP DOWN key to set desired value In time it may be possible that the temp on LCD display may be offset by a degree or so To compensate for this error
14. ove reliability design or function without prior notice and does not represent a commitment on the part of the company In no event will the company be liable for direct indirect special incidental or consequential damage arising out of the use or inability to use the product or documentation even if advised of the possibility of such damages No part of this may be reproduced or transmitted in any form or by any means without the prior written permission of the company Disclaimer This manual amp its contents remain the sole property of A S CONTROLS Pvt Ltd India and shall not be reproduced or distributed without authorisation Although great care has been taken in the prepartion of this document the company or its vendors in no event will be liable for direct indirect special incidental or consequential damage arising out of the use or inability to use the product or documentation even if advised of the possibility of such damages No part of this manual may be reproduced or transmitted in any form or by any means without the prior written permission of the company A S CONTROLS Pvt Ltd reserves the right to make and changes or improvements without prior notice YOSSIJYdANWOO keie a 2 W Zz Warranty This product is warranted against defects in materials and workmanship for a period of one year from the date of purchase During the warranty period product determined by us to be defective in form or function wi
15. re Evap coil probe Alarm to check Heater function To set display during defrost To set maximum defrost duration on coil probe 1 fail Power on time delay for Alarm HT LT To lock keypad F Revert to factory set parameters FS Parameter F To end programming 1 End Parameter U Operating Messages and Icon Status 13 14 Po Panel Cutout Dimensions 15 16 CRC1100A 2 N Operation When operating in the field of refrigeration temperature controls is performed with a positive differential The compressor stops when the Setpoint temperature is reached and restarts when the temperature reaches setpoint plus the differential LCD Display Two different defrost types can be selected electrical the compressor is stopped or at cycle inversion warm gas the compressor keeps working It is also possible to select the interval between defrosts and the interval count type and a maximum time time out after which defrost is interrupted The same probe which controls the defrost cycle is used to control the evaporator fans It is possible to set the temperature the delay time after a defrost and the relation of fans with the compressor 7 Segment Display LED A series of safety controls delay at start up minimum Indications disable time minimum time between activation protects the compressors from close starts In case of probe error or temperatu
16. re alarm the instrument signals the event SZ CRC 1100A through acoustic signal and by closing the relay contact By pressing the mute key the buzzer is silenced and the UP amp Quick relay contact is opened The functions can be easily ican Set Key customised by setting some programming parameters AA perosi KAY Other parameters allow to suit the instrument to various applications Subzero Cold Room Controller CRC 1100A Introduction Items included _ included Features e LCD with backlighting amp 7 segment display to display all parameters No pf wewrmee awe pe femmes 2NTC probes for cold room temp evap coil temperature Range 50 C to 50 C 1 C res Relay outputs Compressor Heater Evap Fan Cond Fan Alarm e Audible alarm e Digital inputs 2nos a Door Switch b Pressure cutout HP LP OSS trip protection for compressor Compressor protection algorithm Auto Man defrosting facility Time Temp based Special Software to indicate probable heater fault NTC SENSOR 1 5 METER 3 X 20 SCREW 03 CRC1100A CRC1100A 04 Key Introduction Introduction Defrost Key To force a manual defrost press defrost key for 4 seconds The unit will go into defrost mode If E4 parameter is set to 0 or coil temp is greater than defrost stop temp E5 this key remain inactive Mute Key This key will mute the buzzer and reset the alarm re
17. that the temp on display 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 Example The temperature on the display is 28 C whereas the actual temperature is 30 C You will need to set this parameter to 2 C which means that once out of programming mode the temperature will show 30 C 28 C 2 C 06 07 P6 Parameter To change the P6 parameter press the SET key P7 Parameter To change the P7 parameter press the SET key P8 Parameter To change the P8 parameter press the SET key ON Time Parameter To change the On time parameter press the SET key Function To set time delay between comp relay restart time Use UP DOWN key to set desired value This parameter is used to protect the compressor from restarting in a short period of time It can be set between 0 to 30Min Example If this parameter set at 3 minutes the relay will cutoff at set temperature but will not restart for a minimum of 3 minutes even if the differential is achieved earlier This parameter is good to protect the life of the compressor or even in applications where the probe is placed at places where there are sudden and short is changes in temperature like above a cold room door Function To set drip time for 20MIn 1Min defrost water to drain out Use UP DOWN key to set desired valu
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