Hoshizaki HWR68A(-D) Manuel D’Utilisation

17

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.

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
. Frame heater(s) off (Q6 and later)
3. Evaporator fan(s) off
4. Condenser fan off
5. Defrost heater on
6. "dF" displayed

Five minutes after 
defrost heater off
1. Compressor on
. Condenser fan on

Five minutes after 
compressor start-up
1. Evaporator fan(s) on
. Frame heater(s)          
on (Q6 and later) 

Board Self Check
1. Frame heater(s) on continuously 

(Q5 and earlier)

    Frame heater(s) cycle on and off 

(Q6 and later)

. Evaporator fan(s) cycles on and off

2-minute Delay
1. Compressor start-up
. Condenser fan start-up
3. Frame heater(s) on  
    (continuously)
4. Evaporator fan(s) on                 
    (continuously)

Cycle Off (Cut-out 
temperature reached) 
[Minimum  minutes]
1. Compressor off
. Condenser fan off
3. Frame heater(s)
    cycle on and off
    (Q6 and later)
4. Evaporator fan(s)
    cycles on and off

Continue as 
normal cycling

Cycle On (Cut-on 
temperature reached) 
[Minimum  minutes]
1. Compressor start-up
. Condenser fan start-up
3. Frame heater(s) on  
    (continuously)
4. Evaporator fan(s) on  
    (continuously)

One minute after evaporator 
fan start-up "dF" no longer 
displayed, cabinet temperature 
displayed