35
In COOL mode, the two indoor coil thermistor (one main and one sub) sense temperature ununiformity (super heat) at the
heat exchanger, And when teperature difference have developed, the indoor coil thermistors adjust LEV opening to get
approxiimate 10 degrees lower temperature than the target temperature in the table above, thus diminishing super heat.
(3) Time chart
OFF Time
Time
ON
The operational frequency of the compressor
Commanded
to open
Standard
opening
degree
opening degree is
corrected according
to discharge
temperature
positioning
air conditioner ON
Air conditioner OFF
(thirmostat off)
LEV opening degree
15 min.
(4) Control data
06
05
04
03
02
01
LEV opening degree
A(target discharge temperature)
B
C
D
E
F
30
50
70
The operational frequency of the compressor
90
110
130
(Hz)
A
58/49
B
60/58
C
68/67
D
70/70
E
72/72
F
72/72
(a) Reference value of target discharge temperature
(Cooling
:
/Heating
:
)
01
110/80
02
150/100
03
200/120
04
200/130
05
200/130
06
200/130
(b) Reference value of LEV standard degreeperature
(COOL/HEAT pulse)