Hoshizaki rh1-aac Manual Suplementar

17

When a combined temperature/amperage value is above the limit specified by the
compressor manufacturer, a protector will operate independently, turning off the
compressor. The compressor will restart when this protector has reset.

Note:

1. Compressor protector resets automatically.
. If the condenser fan is operating and the compressor is off, it is likely that the 

protector has operated.

When pressure on the high-side of the refrigeration circuit is detected to be above 
a preset limit, a pressure switch will activate causing power to be interrupted to the 
compressor relay. This power interruption will shut down the compressor. The pressure 
switch will reset automatically. When the pressure switch resets, power will be resupplied 
to the compressor. See "VI. Wiring Diagrams" for preset values.

For freezers, primary defrost termination is controlled by the defrost thermistor. However, 
two additional safeties are also present:

1) Time Termination - 1 hour maximum
) Safety Defrost Thermostat - In-line with the heaters and independent of the control 

module.

This unit is equipped with a perimeter frame heater. This prevents the formation of 
condensate on the front frame of the unit under high humidity conditions. If operating the 
unit under conditions where condensate will not form, these heaters may be turned off 
using the switch on the control box.