Hoshizaki rh1-aac Manual Suplementar

11

Note: For freezers, defrost will be initiated at power-up. To bypass initial defrost, press 

and hold the up arrow button on the control module while turning on the toggle 
switch. The display should read a temperature. There will be at least a  minute 
delay before the compressor will start even if the initial defrost cycle is bypassed. 
The compressor has a  minute minimum run time during every run cycle. The 
only exception is when the overload activates and deactivates.

Cycle On (Cut-on 
temperature reached) 
[Minimum .0 minutes]
1. Compressor on
. Condenser fan on

Initiate Defrost
1. Compressor off
. Evaporator fan off
3. Condenser fan off
4. Defrost heater on
5. "dEF" displayed
6. Frame heaters on

Defrost End
Defrost thermistor 
reaches 100°F;
Defrost heater off

Five minutes after 
defrost heater off
1. Compressor on
. Condenser fan on
3.

 "rEC" displayed

Evaporator temperature 
drops to 70°F 
1. Evaporator fan on

Cycle Off (Cut-out 
temperature reached) 
[Minimum .0 minutes]
1. Compressor off
. Condenser fan off

Five minutes after 
defrost heater off
1. Compressor on
. Condenser fan on
3. "rEC" displayed

Cabinet thermistor drops 
to 15°F above setpoint. 
1.

 "rEC" no longer 

displayed; cabinet temp. 
displayed

Evaporator temperature 
drops to 70°F 
1. Evaporator fan on

Defrost Start
Preprogrammed time interval
1. Compressor off
. Evaporator fan off
3. Condenser fan off
4. Defrost heater on
5. "dEF" displayed

Defrost End
Defrost thermistor 
reaches 100°F;
Defrost heater off

Cabinet thermistor drops to 
15°F above setpoint. 
1. "rEC" no longer displayed; 
cabinet temp. displayed

Normal cycling continues