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To reduce the risk of fire, electric shock or injury to persons using this freezer, read all
instructions and follow basic safety precautions before using the unit, including the following:
Do not modify the plug provided with the freezer. If it will not fit the outlet,
have a proper outlet installed by a qualified electrician.
Do not position equipment so it is difficult to disconnect from the power supply.
freezer must be at least 6" away from any wall or object on any side.
While under warranty, do not attempt to repair or replace any part of the
freezer for servicing without first contacting the So-Low Service Department.
SAVE THESE INSTRUCTIONS

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Summary of Contents for SO-LOW CH Series

  • Page 1 6” away from any wall or object on any side. While under warranty, do not attempt to repair or replace any part of the freezer for servicing without first contacting the So-Low Service Department. SAVE THESE INSTRUCTIONS...
  • Page 2: Maintenance Checklist

    ♦ ● MEANING OF ILLUSTRATED SYMBOLS…………………………………... ● STARTING INSTRUCTIONS………………………………………………….. ♦ ● PRE-INSTALLATION INFORMATION………………………………………... ♦ ● FREEZER STORAGE PROCEDURE……………………………………..…. ● ALARM BATTERY REPLACEMENT…...…………………………………….. ● CLEANING PROCEDURE…………………………………………………….. ● DEFROSTING PROCEDURE…………………………………………………. ♦ ● CHANGING SETPOINT / OPERATION TEMPERATURE………….……… ♦ ● ALARM SYSTEM……………………………………………………………….. ● DRY CONTACT RELAY……………………………………………………….. ♦...
  • Page 3 Various symbols are used in this safety manual in order to use the unit without danger of injury and damage of the unit. Be sure that you understand the warnings and cautions in this manual before operating the unit. CAUTION BLACK WITH YELLOW BACKGROUND LIGHTNING BOLT CAUTION, RISK OF ELECTRICAL SHOCK...
  • Page 4 WARNING DURING OPERATION THIS UNIT MUST REMAIN IN UPRIGHT POSITION. DURING TRANSPORATION UNIT MUST NOT BE TIPPED MORE THAN 45° FROM UPRIGHT POSITION. CAUTION UNPLUG UNIT AND SWITCH OFF ELECTRICAL BREAKER BEFORE ANY TECHNICAL SERVICE IS PERFORMED. CAUTION COVERS ON BACK / SIDE OF FREEZER MAY ONLY BE REMOVED BY AUTHORIZED PERSONNEL.
  • Page 5 ATTENTION RISK OF ELECTRICAL SHOCK USE CAUTION NEAR ELECTRICAL CONNECTIONS NOTICE...
  • Page 6 NOTICE THE LO-BAT (LOW BATTERY ALARM) IS NOT ABLE TO BE SILENCED OR DISABLED. TO REDUCE THE VOLUME OF THE ALARM UNTIL A REPLACEMENT CAN BE INSTALLED, A PIECE OF TAPE CAN BE PLACED OVER THE BUZZER HOLE ON THE CONTROL CAUTION DISCONNECT THIS UNIT FROM THE POWER SUPPLY BEFORE PERFORMING MAINTENANCE ON THE UNIT.
  • Page 7 ATTENTION FOR UPRIGHT UNITS, IT IS IMPORTANT TO PROTECT THE CONTROL FROM DRIPPING WATER. PLACE A CLOTH OR TOWEL ON THE LEADING EDGE OF THE COOLING CHAMBER ABOVE THE CONTROL TO DEFLECT / ABSORB WATER THAT COULD DRAIN ONTO THE CONTROL. ATTENTION IT IS RECOMMENDED TO SLOWLY RE-ADD YOUR PRODUCT INTO THE FREEZER TO PREVENT AN...
  • Page 8 -888 TEMP -888 WARNING CHANGING THE CONTROL PARAMETERS OUTSIDE OF THE MANUFACTURE RECOMMENDED RANGE, COULD SHORTEN THE LIFE-SPAN OF YOUR EQUIPMENT; OR CAUSE ISSUES RESULTING IN MECHANICAL FAILURE. WARNING USE ONLY THE “UP” AND “DOWN” KEYS WHEN MAKING CHANGES ON THIS CONTROL. WARRANTY WILL BE VOID IF USED IN ANY OTHER WAY.
  • Page 9 • ATTENTION THE BATTERY DOES NOT POWER THE COOLING SYSTEM. WARNING IF IT IS NECESSARY TO REMOVE METAL COVER SCREEN ON BACK OF FREEZER TO MAKE CONNECTIONS TO ALARM RELAY, COVER MUST BE REPLACED BEFORE FREEZER IS PUT INTO OPERATION...
  • Page 10 -888 TEMP -888 TOUCH KEYS FUNCTION DESCRIPTION Press and release to increase the control set-point (while in normal control Up Key mode) or to change lower display program parameter (while in User Menu or Factory Mode). Press and hold to accelerate increment speed. Press and release to decrease the control set-point (while in normal control Down Key mode) or to change lower display program parameter (while in User Menu or...
  • Page 11 : Confused Character To enter the user parameter mode, hold the Scroll Button for 2 seconds and release. To make changes in the user parameter mode, press the up or down arrows. To exit the user parameter mode, press and release the Scroll Button.
  • Page 12 To page through Parameters; Press and Release the scroll key Please read the superscript instructions (bottom of page) for each Parameter value. THE FOLLOWING VALUES WERE SET WHEN THIS UNIT WAS SHIPPED PARAMETERS DESCRIPTION °F °C Lower Setpoint Upper Setpoint Alarm °F °C...
  • Page 13 Press and Release the scroll key to page through Parameters. Once value SHF is shown, Use the or arrow keys to change value to ON. PARAMETERS DESCRIPTION °F °C Lower Setpoint Upper Setpoint Alarm Temperature Scale Calibration • • •...
  • Page 14 • • • • • •...
  • Page 15: Hardware Parts

    TEMPERATURE CONTROL PARTS PART # FDC 4000 4000 HARDWARE PARTS PART # Hasp for CH Model CH-HASP Chest Lid (For Models CH25-5 / CH45-5 / CH40-5) LID-5 Chest Lid Hinge (For Models CH25-5 / CH45-5 / CH40-5) HINGE-CH-5 Chest Lid (For Models CH25-9 / CH43-9) LID-9 Chest Lid Hinge (For Models CH25-9 / CH43-9) HINGE-CH-9...
  • Page 16 WARNING IF FAILURE OCCURS AND UNIT IS STILL UNDER WARRANTY, DO NOT ATTEMPT TO MAKE ANY REPAIR MODIFICATIONS TO THE UNIT BEFORE CONTACTING THE SO-LOW SERVICE DEPARTMENT, AS THIS MAY RESULT IN WARRANTY BEING VOIDED. ◆ ◆ ◆...
  • Page 17 ◆ ◆ ◆ ◆ ◆ ◆...