Midea DLFSHBH18XAK - COOLING Mode

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Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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FAN Mode
When the FAN mode is activated:
• The outdoor fan and compressor stop.
•The temperature control is disabled and the indoor room temperature
appears.
• The indoor fan speed can be set to 1%~100%, or AUTO.
• The louver operations are identical to those in COOLING mode.
• AUTO FAN: In the FAN−ONLY mode, the air conditioner operates
the same as the AUTO FAN in the COOLING mode with the
temperature set at 75F 24C (Tsc =75F (24C).
COOLING Mode
Compressor Control
Reaches the configured temperature:
1. When the compressor runs continuously for less than 120 minutes.
• If the following conditions are satisfied, the compressor ceases
operation.
a. While the calculated frequency (fb) is less than the minimum
limit frequency (FminC).
b. While the protective time is more than or equal to ten
minutes.
c. While T1 is lower than or equal toTsc−CDIFTEMP−0.9F
(0.5C)
NOTE: CDIFTEMP is the EEPROM setting parameter. It is
4
F (2C) usually.
2. When the compressor runs continuously for more than 120 minutes.
•
If the following conditions are satisfied, the compressor ceases
operation.
a. When the calculated frequency (fb) is less than minimum
limit frequency (FminC).
b. When the protective time is more than or equal to ten minutes.
c. When T1 is lower than or equal to (Tsc−CDIFTEMP).
NOTE: CDIFTEMP is the EEPROM setting parameter. It is
4F (2C) usually.
3. If one of the following conditions is satisfied, regardless of time.
•
Compressor running frequency is more than the test frequency.
• When the compressor running frequency is equal to the test fre-
quency, T4 is greater than 59F (15C) or no T4 or T4 fault.
•
Change setting temperature
•
Turbo or sleep function on/off
•
Various frequency limit shutdown occurs
NOTE: CDIFTEMP is EEPROM setting parameter. It is 4F (2C)
usually.
Indoor Fan Control
1. In the COOLING mode, the indoor fan operates continuously. The
fan speed can be set to 1%−100%, or AUTO.
2. AUTO fan
• Descent Curve
•
When T1−Tsc is lower than or equal to 6.3F (3.5C), fan
speed reduces to 80%;
• When T1−Tsc is lower than or equal to 1.8F (1C), fan speed
reduces to 60%;
• When T1−Tsc is lower than or equal to 0.9F (0.5C), fan
speed reduces to 40%;
•
When T1−Tsc is lower than or equal to 0F (0C), fan speed
reduces to 20%;
• When T1−Tsc is lower than or equal to −0.9F (0.5C), fan
speed reduces to 1%.
• Rise Curve
•
When T1-Tsc is higher than 0F (0C), the fan speed increases
to 20%;
•
When T1-Tsc is higher than 0.9F (0.5C), the fan speed
increases to 40%;
• When T1-Tsc is higher than 1.8F (1C), the fan speed
increases to 60%;
• When T1-Tsc is higher than 2.7F (1.5C), the fan speed
increases to 80%;
• When T1-Tsc is higher than 7.2F (4C), the fan speed
increases to 100%.
Outdoor Fan Control
• The outdoor unit runs at a different fan speed according to T4 and the
compressor running frequency.
• For different outdoor units, the fan speeds are different.
Condenser Temperature Protection
When the condenser temperature exceeds a configured value, the
compressor ceases operations.
Evaporator Temperature Protection
When the evaporator temperature drops below a configured value, the
compressor and outdoor fan ceases operations.