38
MSZ09UN
In COOL mode, the two indoor coil thermistor (one main and one sub) sense temperature ununiformity (super heat)
at the heat exchanger, And when temperature difference have developed, the indoor coil thermistors adjust LEV
opening to get approximate 16 degrees lower temperature than the target temperature in the table above, thus
diminishing super heat.
(2) 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
(thermostat off)
LEV opening degree
13 min.
(3) Control data
T
arget discharge temperature
A
B
C
D
E
F
30
50
70
The operational frequency of the compressor
90
110
130
(Hz)
A
136/120
B
145/136
C
156/151
D
165/160
E
–/169
F
–/–
(a) Reference value of target discharge temperature
(COOL/HEAT °F)
A
120/100
B
170/130
C
210/160
D
230/180
E
–/200
F
–/–
(b) Reference value of LEV standard degree opening
(COOL/ HEAT pulse)
126/118 129/135 138/151 151/160
–/169
–/172
MSZ09UN
MSZ12UN
190/120 220/170 250/190 280/210
–/230
–/240
MSZ09UN
MSZ12UN
LEV opening degree
A
B
C
D
E
F
30
50
70
The operational frequency of the compressor
90
110
130
(Hz)
OB297--2.qxp 04.2.4 4:21 PM Page 38
Содержание Mr.Slim MSZ09UN W
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