Time Chart; Air Conditioner On; Control Data; Outdoor Fan Motor Control - Mitsubishi Electric MSZ-G09SV Service Manual

(2) Time chart

Air conditioner ON

Positioning
Standard
opening
degree
13 min.
ON

(3) Control data

(a) Reference value of target discharge temperature
(COOL/HEAT :)
A
MSZ-G09SV -
E1
58/49
MSZ-G09SV -
E2
MSZ-G12SV -
E1
57/48
MSZ-G12SV -
E2
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 10 degrees lower temperature than the target temperature in the table above, thus
diminishing super heat.
(b) Reference value of LEV standard degree opening
(COOL/ HEAT pulse)
01
MSZ-G09SV -
E1
150/70
MSZ-G09SV -
E2
MSZ-G12SV -
E1
160/90 190/120 200/140 220/160 240/180 255/200
MSZ-G12SV -
E2

9-11. Outdoor fan motor control

The AC fan motor turns ON/OFF, interlocking with the compressor.
[ON] The AC fan motor turns ON 5 seconds before the compressor starts up.
[OFF] The AC fan motor turns OFF 15 seconds after the compressor has stopped running.
Opening degree is
corrected according
to discharge
temperature.
OFF Time
B C D
63/58 69/66 74/71
60/57 67/66 75/71
02 03 04
170/90 180/110 190/140
Air conditioner OFF
(thermostat off)
Commanded
to open
Time
06
05
E F
04
03
74/76 74/78
02
01
78/76
78/78
The operational frequency of the compressor
05 06
200/150 200/160
46
D
C
B
A(target discharge temperature)
30 50 70 90
F
E
110 130
(Hz)