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BEFORE PERFORMING MAINTENANCE 

To reduce the risk of fire, electric shock or injury to persons using this freezer, read 

all instructions and follow basic safety precautions. 

 

 

 

CAUTION 

DISCONNECT THIS UNIT FROM THE POWER SUPPLY 

BEFORE PERFORMING MAINTENANCE ON THE UNIT. 

 

 

 

 

 

 

  Wipe down the exterior of the freezer with a soft cloth and spray type polish. 

  If frost builds up in the chamber, a bucket and ice-scraper can be used to remove 

the ice. 

  If excessive ice builds up, the unit can be defrosted (see below). 

 

 

 

 

 

 

1.  Remove any product in the freezer and store it in a back-up freezer or elsewhere. 

2.  Unplug the freezer and open the freezer front door / lid. 

3.  Use a cloth to protect the control from dripping water. 

4.  Air out the freezer for at least 12 hours, allowing the unit to reach room temperature. 

5.  Take a rag and wipe up all the excess water in the unit (melted frost). 

6.  Plug the unit in and set your temperature to the desired setpoint 

7.  Once the desired temperature is reached, add product back into the unit. 

 

 

 

WARNING 

IT IS RECOMMENDED TO SLOWLY RE-ADD YOUR 

PRODUCT INTO THE FREEZER TO PREVENT AN 

EXTREME LOAD ON THE COMPRESSORS, WHICH 

COULD SHORTEN FREEZER LIFE EXPECTANCY. 

 

 

 

 

 

 

 

PREVENTATIVE MAINTENANCE 

MAINTENANCE 

CLEANING PROCEDURE 

DEFROST PROCEDURE 

Содержание ULF001C

Страница 1: ...ltra Low Freezer of Yamato Scientific To use this unit properly read this Instruction Manual thoroughly before using this unit Keep this instruction manual around this unit for referring at any time W...

Страница 2: ...REFRIGERATION SPECIFICATIONS 4 MAINTENANCE 5 UNIT OPERATION 6 TEMPERATURE CONTROL 7 ALARM OPERATION 8 ALARM SYSTEM 8 DRY CONTACT RELAY 8 CONTROL PROGRAMMING 9 CONTROL KEYS DISPLAYS 9 CONTROL PROGRAMMI...

Страница 3: ...XCLAMATION POINT CAUTION REFER TO ACCOMPANYING DOCUMENTS 1 Move the freezer to an indoor location and plug the freezer into an appropriate outlet with an adequate power supply Consult your maintenance...

Страница 4: ...ly present on the mains supply overvoltage category II Pollution degree 1 WARNING THIS FREEZER IS PROVIDED WITH AN INPUT CIRCUIT PROTECTIVE DEVICE WHICH SHALL BE MAINTAINED AND SERVICED BY QUALIFIED P...

Страница 5: ...PLUG ULF001C ULF101C ULF201C 115 VOLTS 60 HERTZ 1 PHASE 15 AMP DEDICATED LINE NEMA 5 15 ULF301C ULF401C ULF501C ULF601C ULF801C 115 VOLTS 60 HERTZ 1 PHASE 20 AMP DEDICATED LINE NEMA 5 20 WARNING ONLY...

Страница 6: ...16 5 oz R170 30 to 25 psi R508B 155 psi ULF301C 9 1 3 HP DANFOSS R404A 18 oz R170 30 to 25 psi R508B 155 psi ULF401C 12 1 HP TECUMSEH R404A 19 oz R170 30 to 20 psi R508B 130 psi ULF501C 14 1 HP TECUM...

Страница 7: ...in the freezer and store it in a back up freezer or elsewhere 2 Unplug the freezer and open the freezer front door lid 3 Use a cloth to protect the control from dripping water 4 Air out the freezer fo...

Страница 8: ...ystem cycles off on high pressure control WARNING ALWAYS LEAVE THE REFRIGERATION SWITCH IN ON POSITION AS THIS WILL AUTOMATICALLY ACTIVATE THE AUTOMATIC STARTING SYSTEM CAUTION COVER SCREEN ON BACK OF...

Страница 9: ...TURE SETPOINT The temperature set point can be changed by simply pressing the up arrow to raise or the down arrow to lower the temperature set point WARNING CHANGING THE CONTROL PARAMETERS OUTSIDE OF...

Страница 10: ...batteries should be changed approximately every three years with lead acid rechargeable 1 2 Ah min model PS 640F1 or equivalent WARNING ALARM SYSTEM SHOULD BE TESTED EVERY 30 DAYS The dry contact rel...

Страница 11: ...r 2 seconds and release to silence audible alarm under normal power or on battery power While unit is in an alarm condition the external alarm relay contacts will remain energized until the alarm cond...

Страница 12: ...tton is pressed to display the process value Note When operating on battery power the battery status LED labeled BAT on the front panel will be lit To enter the USER parameter mode hold the scroll key...

Страница 13: ...ntial 22 12 X AHY 3 1 Alarm Hysteresis 1 8 1 0 X OHY 3 1 Output Hysteresis 3 6 2 0 X RB 1 Alarm Delay in Minutes 30 X DoR 4 Door Alarm X SP 2 Setpoint X IN2 4 N A N A TO EXIT TAP SCROLL KEY REPEATEDLY...

Страница 14: ...value to ON PARAMETERS DESCRIPTION F C ON OFF SPL 3 Lower Setpoint SPH 3 Upper Setpoint Al 2 Alarm INV 1 Temperature Scale SHF 1 Calibration X Hold SCROLL KEY for 2 seconds and release SHF should app...

Страница 15: ...13 WIRING DIAGRAM...

Страница 16: ...14 ALARM WIRING DIAGRAM...

Страница 17: ...15 REFRIGERATION FLOW CHART...

Страница 18: ...Specify Voltage 231 VOLTAGE REFRIGERATION HIGH STAGE PARTS PART Air Cooled Condenser No 3CZ0602B 254 Drier No C 053 S 256H Capillary Tube HS 17 HS 20 Oil Separator Temprite Series 900 If Applicable 90...

Страница 19: ...itions This warranty shall have force and effect only if all items are used with proper circuits voltages and frequencies and the operation thereof is in accordance with instructions furnished by the...

Страница 20: ...are subject to a 25 restocking fee Shipping and handling cost are non refundable All retrofitted customized and special order item sales are final and non returnable In Case of Request for Repair If...

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