Sharp R-880S Instrukcja Operatora Strona 31

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Unit Description
29
The CYCLE-SENTRY system automatically starts the unit on
microprocessor demand and shuts down the unit when all
demands are satisfied.
The system monitors and maintains the compartment
temperature, the engine block temperature, and battery charge
levels at a point where quick, easy starts are possible.
Defrost
Frost will gradually build up on the evaporator coils as a result
of normal operation. Periodically this frost must be melted to
prevent a loss of cooling and airflow.
Defrost is accomplished by passing hot refrigerant gas through
the evaporator coil, thus melting the frost (or ice). Melted frost
drains out of the unit onto the ground through the drain tubes.
The defrost damper closes during defrost to prevent warm air
from entering the cargo area. The optional electric heater strips
are also energized in defrost during electric standby operation.
Defrost can be initiated at any time the evaporator coil
temperature is below 42 F (5.5 C).
There are two methods of defrost initiation:
SR-3 Microprocessor Controller: The Microprocessor
Controller is programmed to automatically initiate timed and
forced defrost cycles. The SR-3 uses temperature sensors to
determine if forced defrost is required.
Manual Defrost: Manual Defrost allows the operator to
initiate a defrost cycle by pressing the D
EFROST key. See
“Initiating a Manual Defrost Cycle.”
DAS - Data Acquisition System
(Optional)
The DAS (Data Acquisition System) monitors and records the
temperatures of (up to) six additional sensors. The sensors are
independent from the microprocessor controller and are
normally located in the truck box to monitor load temperatures.
WARNING: Turn the unit off by pressing the OFF key
before opening doors or inspecting any part of the
unit. The unit can start at any time without warning if
it has been turned on by pressing the
ON key.
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