Aprilaire Freezer PLUS Series 用户手册

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页码 15
 
13
 
 
 
MFP-2030 
This section pertains to -30
°C FREEZER ONLY 
 
This freezer has been factory set to run at -30
°C.  The LR-5 TempGuard may require 
adjustment depending on the final ambient operating condition.  The freezer has 
reserve rangeand will average –30
°C, depending on load and ambient temperature.  
Plug into a standard 110-120 volt electrical outlet.  The unit will start to operate.  It will 
require 5 amps.  The freezer's operation will be extremely quiet due to the unique 
design of the compressor system.  
 
As with the –20 models, pre-cool unit before placing any product into the chamber.  The 
temperature will reach -30
°C in less than four hours; however, let the chamber cool for 8 
hours minimum to allow for total heat removal from the cabinet.  
 
Again, this is a manual defrost system.  If ice build up is present ¼ inch or more on the 
fixed shelves, defrosting is recommended.  Large ice build up will reduce cooling 
efficiency.    
 
If this system is equipped with a temperature display or alarm system it is not 
uncommon to observe a rise in temperature on the display following a door opening.  
Unless the door is left open for long periods of time this should not affect product 
temperature.  The temperature display is independent of the thermostat that is actually 
controlling the off/on cycling of the compressor.  Door opening will greatly affect air 
temperature but generally does not affect product temperature.