Hoshizaki HUR40a Manuel D’Utilisation

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15
2. Freezers – Continuous Operating Mode  
a) Sequence of Operation
Note:  
1) Cut-on, cut-off, and cabinet temperature are read by the same sensor, called the 
"cabinet thermistor." 
) The defrost thermistor reads the evaporator temperature.
3) There is a five second evaporator fan startup delay when the compressor and    
  fan would otherwise start together.
Five minutes after 
defrost heater off
1. Compressor on
. Condenser fan on
Five minutes after 
compressor start-up
1. Evaporator fan(s) on
 
Eight minutes after evaporator 
fan start-up "dF" no longer 
displayed, cabinet temperature 
displayed
Board Self Check
1. Frame heater(s) on
. Evaporator fan(s) on
POWER ON
2 minute delay
1. Compressor start-up
. Condenser fan start-up
Cycle Off (Cut-out 
temperature reached) 
[Minimum  minutes]
1. Compressor off
. Condenser fan off
Continue as 
normal cycling
Cycle On (Cut-on 
temperature reached) 
[Minimum  minutes]
1. Compressor start-up
. Condenser fan start-up
Defrost end
Defrost thermistor 
reaches defrost 
termination 
temperature, or defrost 
timer reaches 1 hour
Defrost heater off
Defrost Start
Preprogrammed time interval
1. Compressor off
. Evaporator fan(s) off
3. Condenser fan off
4. Defrost heater on
5. "dF" displayed