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freezer improperly may jeopardize safety or cause undue 
stress or damage to the refrigeration compressors. 

Avoid opening the door for extended periods of time since 
chamber air will escape rapidly.  Room air, which is higher 
in humidity, will replace chamber air and may cause frost to 
develop in the chamber more rapidly. 

4. CHECK OUT YOUR NEW FREEZER 

4.1 Lid Seal 

If  the  lid  gasket  does  not  seal  along  the  front  edge,  relieve 
the  compression  of  the  gasket  along  the  back  edge  by 
loosening the hinge screws where they attach to the cabinet.  
Raise the lid slightly and then retighten the screws. 

 

4.2 Interior Compartment Temperature 

The  temperature  is  controlled  by  a  CAL  9500  digital 
temperature controller. When you first power up the freezer,  
the high stage compressor and fan will start and operate for 3 
to  6  minutes  before  the  low  stage  compressor  starts.    Pull 
down  to  minimum  temperature  will  take  from  3  to  6  hours, 
depending on ambient temperature and size of cabinet.  The 
high stage compressor runs 100% of the time.  The low stage 
compressor will cycle on and off to maintain the temperature 
of  the  controller  setting.    Set  the  control  to  the  desired  set 
point. To view the set point temperature, press the * and the 
UP  arrow  keys  together.  To  decrease  the  set  point 
temperature,  press  the  *  and  the  DOWN  arrows  keys 
together. 

Freezers  are  shipped  from  the  factory  with  the  indicating 
digital control programmed for proper operation. All but the 
temperature  settings  may  be  adjusted.  The  temperature 
sensor is a type 

“T”

 thermocouple located on the front wall 

of the inner-liner. 

4.3

 

Alarm Signal System 

The  Alarm  should  be  kept  in  the  “OFF”  position  until  the 
cabinet  temperature  has  reached  the  appropriate  setting.  
When  the  temperature  has  been  reached,  the  temperature 
alarm  should  be  switched  to  the  “ON”  position  and  is  now 
ready  to  operate.    It  will  monitor  “temperature  rise”  and 
“power-failure”.    The  control  is  factory  set  to  operate  the 
alarm  at  approximately  10

F  (6

C)  above  the  set 

temperature.    No  further  adjustment  is  necessary  unless  a 
spread other than this is desired.  In the event a temperature 
spread  of  more  or  less  than  factory  set  is  desired,  refer  to 
your digital temperature control manual.  
 
NOTE:  It  is  recommended  to  keep  the  freezer  operating 
continually rather than turning the freezer off and on. 

 

5 ELECTRICAL CONNECTIONS 

5.1 Wiring 

 

 

This cabinet is equipped with a three-prong (grounding) plug 
for your protection against shock hazards.  The cabinet 
should be plugged directly into a properly grounded three-
prong receptacle.  

Where a two-prong wall receptacle is encountered, it must be 
replaced in accordance with the National Electronic Code 
and local codes and ordinances. A licensed electrician must 
do the work. 

The electrical outlet should not be controlled by a wall 
switch, which might be turned off accidentally. 

 

*WARNING: Do NOT under any circumstances cut or 
remove the round grounding prong from the cabinet 
plug. 

 
 

*CAUTION

: For personal safety and trouble-free operation, 

this cabinet must be properly grounded before it is used.  
Failure to ground

 

the

 

equipment may cause personal injury 

or damage to the equipment.  Always conform to the 
National Electrical Code and local codes.  Do not plug in the 
cabinet to overloaded power lines. 

 

Consult a licensed electrician if you have ANY doubt 
about the grounding of your wall receptacle.  Only a 
licensed electrician can determine the polarization of 
your wall receptacle. 

 
 
6 DANGERS OF A LOW TEMPERATURE FREEZER 

 
Any temperature below 0

 Centigrade or 32

 Fahrenheit 

provides a potential condition to cause freezing of water or 
material containing water.  Material containing water 
solutions of salt or sugar will freeze at a slightly lower 
temperature, depending on the content of the solution. 
 
Because all warm-blooded creatures are composed of a great 
percent of water with salinity, they are subject to freezing 
whenever the body cells, parts or extremities reach 
temperatures below freezing.   

 

6.1 When Skin Freezes 

When your skin is exposed to subfreezing temperatures for 
an extended amount of time, it can freeze.   Your blood 
vessels constrict in response to dropping temperatures.  This 
reduces the flow of blood and, therefore, the amount of 
oxygen to the tissues.  When water in these tissues freezes 
and forms ice crystals, cell structure is destroyed.  
 

Summary of Contents for 43-1.7A

Page 1: ...ure When the temperature has been reached turn the alarm switch to the On position Cabinet should not be loaded with product until the cabinet has operated for 24 hours at the desired set point temperature Maintenance tips for your Scientemp Freezer Regularly remove any frost build up by using a plastic wooden scraper Check and replace batteries on Alarm Signal System and Chart Recorder if equippe...

Page 2: ...517 263 5492 Website www scientemp com OPERATING AND INSTALLATION MANUAL MODEL 43 1 7A This cabinet has passed the QUALITY CONTROL INSPECTION and meets the high standards at Scientemp Corp This inspection includes the complete refrigeration system cabinet construction and finish ...

Page 3: ...lling using or maintaining this product please be sure to read this manual carefully Failure to follow these instructions may cause this product to malfunction which could result in injury or damage Below are important safety precautions that apply to this product Use this product only in the manner described in the product literature and in this manual Before using it verify that this product is ...

Page 4: ...n this is desired In the event a temperature spread of more or less than factory set is desired refer to your digital temperature control manual NOTE It is recommended to keep the freezer operating continually rather than turning the freezer off and on 5 ELECTRICAL CONNECTIONS 5 1 Wiring This cabinet is equipped with a three prong grounding plug for your protection against shock hazards The cabine...

Page 5: ...to the material stored in the freezer Most of the frost and ice collects near the top edge and is easily removed 2 In the case where the freezer is not loaded frost and ice may be removed by disconnecting the power until the frost and ice thaw After defrosting dry the freezer compartment interior and plug freezer back in 8 ALARM SIGNAL SYSTEM SCIENTEMP Alarm signal system is a dependable compact u...

Page 6: ...troller 4 Remove the controller from the instrument panel 5 Insert new controller into instrument panel reverse procedures When rewiring use enclosed wiring diagram 11 CHANGING THERMOCOUPLE T C 1 Disconnect power and let freezer warm up 2 Remove stainless steel corner slips from front two corners 3 Remove white plastic breaker by pulling up and out on edge next to inner liner 4 Lift insulation and...

Page 7: ...play Setpoint value or program selection Green LED Setpoint 1 output indicator Upper Red LED Setpoint 2 output indicator Lower Red LED Setpoint 3 output indicator Green Display Process variable or Function Option ADJUSTMENTS To enter or exit program mode Press together for 3 seconds To scroll through functions Press or To change levels or options Press together or together To view setpoint units P...

Page 8: ... or by fire or flood CONSEQUENTIAL DAMAGES IN NO EVENT SHALL SCIENTEMP CORP BE LIABLE FOR SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES INCLUDING WITHOUT LIMITATION PRODUCT LOSS OR PRODUCT SPOILAGE CLAIMS NOR FOR ANY DELAY IN THE PERFORMANCE OF THIS WARRANTY DUE TO CAUSES BEYOND ITS CONTROL GENERAL The standard warranty and any service contract related to the STANDARD WARRANTY shall apply only to the ...

Page 9: ......

Page 10: ...17B 3 1 14 4 5 6 10 9 14 15 17A 18 13 7 19 13 8 9 16 2 12 ...

Page 11: ...Width 1095 1 7 W 10 Stainless Steel Corner Cap 1098 1 7 11 Replacement Key Not Pictured 1031 12 Metal Sub Breaker Clip Call 13 Sub Breaker Strip Length Call 14 Sub Breaker Strip Width Call 15 Keyed Hasp Lock Assembly 1027 4 16 Cabinet Shell Call 17A Leg Assembly Left Call 17B Leg Assembly Right Call 18 Standard Non Locking Casters 1030 2 18 Locking Casters Optional Not Shown 1030 2L 19 Interior Ta...

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