Kairak KU Series Instruction Manual Download Page 1

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Undercounter Refrigerators and Freezers

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InstRUctIon MAnUAl

KU sERIEs FUll-sIzE UndERcoUntER REFRIGERAtoRs

KU044sc, KU072sc & KU100sc

500 S. State College Blvd. Fullerton, CA 92831 | Phone: (714) 870-8661, Fax: (714) 870-6473

www.kairak.com

Summary of Contents for KU Series

Page 1: ...truction Manual KU Series Full Size Undercounter Refrigerators KU044SC KU072SC KU100SC 500 S State College Blvd Fullerton CA 92831 Phone 714 870 8661 Fax 714 870 6473 www kairak com KAIRAK a division of ITW Food Equipment Group LLC All Rights Reserved ...

Page 2: ...vice Parameters g Adjusting Thermostat Set Point High h Adjusting Thermostat Set Point Low i Changing The Temperature Scale j Setting The 24 Hour Clock k Setting The Date l Setting Daylight Savings Time m Starting A Manual Defrost n Setting Defrost Lockouts o Adjusting The Drawer Perimeter Heaters p Adjusting The Room Temperature Offset q Setting The Audible Alarm Style r Viewing Sensor Temperatur...

Page 3: ...rial tag SERIAL MODEL VOLTS Hz PH TOTAL CURRENT AMPS MINIMUM CIRCUIT AMPS MAXIMUM OVERCURRENT PROTECTION AMPS LIGHTS WATTS HEATERS AMPS REFRIGERANT TYPE OZ DESIGN PRESSURE HIGH LOW REFRIGERANT TYPE OZ DESIGN PRESSURE HIGH LOW READING THE SERIAL TAG Serial The permanent ID of your Kairak unit Model The model of your Kairak unit Volts Voltage Hz Cycle PH Phase Total Current Maximum amp draw Minimum ...

Page 4: ...m extreme heat or cold Allow enough clearance between the unit and the side wall in order to make use of the door stay open feature at 1200 self closing feature operates up to 900 The door s must be able to open a minimum of 900 in order to make use of the maximum clear door width 3B packaging Your Kairak unit is shipped from the factory bolted to a sturdy wooden pallet in stretch wrapped material...

Page 5: ... contained models are shipped standard with a NEMA 5 15P plug and 9 foot cord Select only a dedicated electrical outlet for power source NOTE Do not under any circumstances cut or remove the round grounding prong from the plug or use an extension cord 3E POWER SUPPLY The supply voltage should be checked prior to connection to be certain that proper voltage for the cabinet wiring is available refer...

Page 6: ...ts and the condenser fan circuit will be de energized thru the normally closed contacts and the compressor will restart When the evaporator coil sensor reaches 400 F the coil is fully defrosted or if the maximum time of defrost duration 20 minutes is reached which ever comes first then the defrost hot gas relay is de energized The condenser fan restarts and the hot gas solenoid valve closes The co...

Page 7: ... 140 degrees F the compressor will restart and when the temperature drops below 120 degrees F the alarm will reset WARNING DISCONNECT ELECTRICAL POWER SUPPLY BEFORE CLEANING ANY PARTS OF THE UNIT To clean the condenser filter first disconnect electrical power to the cabinet and remove the front louver assembly To do so place hands under the louver panel and pull out and up to get louver panel off ...

Page 8: ...l slip into place 5C CLEANING THE CABINET SURFACES WARNING DISCONNECT ELECTRICAL POWER SUPPLY BEFORE CLEANING ANY PARTS OF THE UNIT Exterior stainless steel should be cleaned with warm water mild soap and a soft cloth Apply with a dampened cloth and wipe in the direction of the metal grain Avoid the use of strong detergents and gritty abrasive cleaners as they may tend to mar and scratch the surfa...

Page 9: ... When the bolts from the lower hinge plate are removed remove the lower hinge plate and then the door from the top hinge bracket plate and then the door from the top hinge bracket The hinge plate pin and plastic bushing will remain in the top hinge plate NOTE The lower hinge plate is under spring tension Once the door s have been removed Insert drawer frame as shown below Figure 5 Once the drawer ...

Page 10: ...t Housing The face of the control is water resistant to provide for protection during cleaning Parameter Service Levels See Customer Service Parameters on Page 9 Defrost Lockouts See Setting Defrost Lockouts on page 14 Customers can set up to 4 different defrost lockout periods The lockout prevents the unit from going into a defrost cycle during peak kitchen use Note The 24 hour clock must be set ...

Page 11: ...arm style 7 microprocessor control Cont High Cabinet Air Temperature The audible alarm will sound and the display will read HI CAb when the temperature inside the cabinet rises above a pre programmed limit The limit is determined by the type of unit being operated i e refrigerator freezer To turn off the audible alarm press the alarm cancel button The visual alarm text will continue to display unt...

Page 12: ...ay will read ELE LOS when the unit regains power after an outage To turn off the audible alarm and or clear the visual text press the alarm cancel button Condenser Clean The audible alarm will sound and the display will read Clean Filter when discharge temperatures exceeds 140 degrees As the load on the condenser decreases the alarm will turn off by itself As the temperature on the condenser conti...

Page 13: ...ure If you enter the wrong security code the controller will revert back to displaying the cabinet temperature You can exit the parameters at any time by pressing the alarm cancel button or by waiting 20 30 seconds 7c Control Panel Diagram FREEZER SET INTELA TRAUL F C DEFROST SYBMBOL SET BUTTON UP BUTTON DOWN BUTTON ALARM CANCEL BUTTON RED ALARM LIGHT 0F LED 0C LED defrost symbol LED DISPLAY 7 mic...

Page 14: ...on The display will show three zeros with the center zero flashing Press the down arrow key to sequence through F E d C b A 9 8 7 etc When you reach A press set The display will show zero A zero with the right zero flashing Press the up arrow key to sequence through 1 2 3 4 5 6 7 8 9 A b etc When you reach 1 press set The display will read Thermostat Set Point High Press to view and again to exit ...

Page 15: ...to scroll through the options 7 microprocessor control Cont Defrost Lockout 3 Defrost Lockout 4 Dew Point Compensation Factor Room Temperature Offset Audible Alarm Style Cabinet Air Sensor Temp Evaporator Coil SensorTemp Discharge Line Sensor Temp Thermostat Set Point High Thermostat Set Point Low Temperature Scale Time 24 hour clock Date month day year Daylight Savings Start Manual Defrost Defros...

Page 16: ...the up or down arrow keys to scroll to the next parameter or press the alarm cancel button to exit SET SET 7h ADJUSTING THERMOSTAT SET POINT LOW This parameter sets the low point of the desired cabinet temperature range Typically freezers will range from 6 F to 4 F 21 C to 20 C and refrigerators will range from 32 F to 34 F 0 C to 1 C for this parameter setting This parameter is preset at the fact...

Page 17: ...gh press the down arrow key until the control display reads Temperature Scale Press the set button The display will start with the current setting either for degrees Fahrenheit or for degrees Celsius Use the arrow keys to toggle between the options When the display shows the scale you want press the set button The display will then read Temperature Scale You can use the up or down arrow keys to sc...

Page 18: ...e the up or down arrow keys to scroll to the next parameter or press the alarm cancel button to exit 7j SETTING THE 24 HOUR CLOCK The internal time clock must be set in order for the data storage memory to correctly log events and to allow any defrost lockout to occur at the correct time of day If the clock is not set the control assumes the time is 12 am at the time power is supplied to the unit ...

Page 19: ...e correct day is displayed press the set button The display will then read Date You can use the up or down arrow keys to scroll to the next parameter Press the alarm cancel button to exit 7l SETTING DAYLIGHT SAVINGS TIME This parameter is preset at the factory to automatically adjust the 24 hour clock for Daylight Savings Time Follow the instructions to enter the customer access code on page 8 Whe...

Page 20: ...ess the down arrow key until the control display reads Start Manual Defrost Press the set button The display will show Press either arrow key The display will show Press the set button NOTE Kairak refrigerator units also have an off cycle defrost at which time the control will read This defrost is temperature terminated and can last from 3 20 minutes dEF will be displayed for 20 37 minutes time Th...

Page 21: ...onflicts with other internal programs The defrost lockouts can not be programmed to run back to back For example if dL1 is set to 080 then a defrost cycle would be locked out from 8 00 am to 10 00 am Because of the dL1 setting the dL2 parameter would not let the user choose a lockout start time before 10 30 am All lockouts are preset at the factory to OFF OFF 020 2 00 a m 023 2 30 a m 030 3 00 a m...

Page 22: ...t High press the down arrow key until the control display reads or Press the set button The display will show Off Press the arrow keys to set the start time When the correct time is displayed press the set button The display will then read or You can press the up or down arrow keys to scroll to the next parameter or press the alarm cancel button to exit SET SET 7 microprocessor control Cont ...

Page 23: ...ead DewPoint Compensation Factor You can use the up or down arrow keys to scroll to the next parameter or press the alarm cancel button to exit 7 microprocessor control Cont SET SET 7p ADJUSTING THE ROOM TEMPERATURE OFFSET The room temperature offset parameter allows a service technician or end user the ability to have the display show a temperature that is within three degrees of the actual tempe...

Page 24: ...n on off the audible alarm feature on the Microprocessor control The audible alarm is preset from the factory to OFF The customer can choose between an audible alarm that sounds for 3 seconds then automatically turns off or a continuous audible alarm that must be manually acknowledged Regardless of this feature s setting visual alarm text will display when conditions warrant To adjust this setting...

Page 25: ...ndercounter Refrigerators and Freezers PAGE 25 8 Wiring Diagram Note Refer to the wiring diagram below applies to refrigerators and freezers units for any service work performed by a qualified technician ...

Page 26: ...riod of time c Microprocessor Control setting is too high Readjust per instructions on p 9 and 10 d Clean Condenser 4 Food Compartment is too cold a Check if a large quantity of very cold or frozen food has recently been added Allow adequate time for the cabinet to recover its normal operating temperature b Adjust the microprocessor control to warmer set ting Readjust per instruction on p 9 and 10...

Page 27: ... freight bill before freight charges are paid File claim for damages with freight agent immediately BLU fixtures manufactured by Kairak hold a 3 year parts and labor warranty Kairak holds a 5 year compressor warranty with a one time compressor only replacement after the first year Kairak will warranty the labor to replace the compressor for the first three years 30 days from the ship date After th...

Page 28: ...Undercounter Refrigerators and Freezers PAGE 28 NOTES ...

Page 29: ...Undercounter Refrigerators and Freezers PAGE 29 NOTES ...

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