Fujitsu Siemens Computers AB* G45LRTA, Инструкция по эксплуатации

Страница: 22 / 81

01-19
1-18. DEFROST OPERATION CONTROL
1. CONDITION OF STARTING THE DEFROST OPERATION
Integratingdefrost
(Constant monitoring)
If the compressor continuous operation time is less than 10 minutes,
the OFF number of the compressor is counted.
If any defrost operated, the compressor OFF count is cleared.
2. CONDITION OF THE DEFROST OPERATION COMPLETION
Defrost operation is released when the conditions becomes as shown in Table 13.
( Table 13 : Condition of defrost release )
Release Condition
Outdoor heat exchanger temperature is higher than 10°C
or
Compressor operation time has passed 15 minutes.
The defrost operation starts as shown in the following Table 10, 11, and 12.
From 2nd and later
defrost after
starting operation
Less than 35 minutes More than 35 minutes
Does not operate
Compressor integrating operation time
( Table 10 : Condition of 1st defrost operation)
1st defrost
after
starting operation
Compressor integrating operation time
Less than 22 minutes More than 22 minutes More than 62 minutes
Does not operate
Outdoor heat exchanger temperature
Below -9°C
Outdoor heat exchanger temperature
Below -10°C
Outdoor heat exchanger temperature
Below -5°C
More than 240 minutes
( For long continuous operation )
Less than 10 minutes
( For intermittent operation )
Compressor integrating operation time
Outdoor heat exchanger temperature
Below -3°C
OFF count of the compressor
40 times
( Table 12 : Condition of Integrating defrost operation)
( Table 11 : Condition of 2nd defrost operation)