Carrier TRANSICOLD INTEGRA 30S, Руководство по эксплуатации и обслуживанию

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62-10848 4-2
4.2 Defrost Cycle
Defrost is an independent cycle overriding cooling and
heating functions in order to melt frost and ice from the
evaporator when necessary. Defrost may be initiated
by the microprocessor or manually by the operator
once the defrost termination thermostat has closed.
(See
Section 2.6.2 for settings). In defrost mode, the
microprocessor displays “dF” on the cab command and
set point is no longer displayed.
During defrost, the evaporator fans shut down and
operation of the condenser fan is controlled by the
microprocessor. The end of the cycle is controlled by
the opening of the defrost termination thermostat. (See
Section 2.8.2 for a description of the refrigeration cir-
cuit during heat and defrost.)
4.3 Minimum Off Time
Once the unit has cycled off, it will remain off for the
minimum off time of five minutes. This prevents the unit
from rapid cycling due to changes in air temperature.
Air temperature in the refrigerated compartment
changes rapidly but it takes time for the product tem-
perature to change.