Low pressure shell scroll
type with capacity control
mechanism
Winding resistance:
Each phase 0.107Ω (20˚C)
Setting 30kg/cm2G OFF
R120=7.465kΩ
B25/120=4057
Rt =
7.465exp{4057( – )}
R0=15kΩ
B0/100=3460
Rt =
15exp{3460( – )}
R50=17k
Ω
B25/50=4170
Rt =
Com- MC
pressor
Pressure 63HS
sensor
Pressure 63H
switch
Thermistor TH1
(discharge)
TH2
(low pressure
saturation
temperature)
TH5
(piping
temperature)
TH6
(outdoor air
temperature)
TH7
(subcool coil
outlet tempe-
rature)
TH8
(subcool coil
bypass outlet
temperature)
THHS
Symbol
(function) Part code Application Specification Check method
Adjust refrigerant circulation by con-
trolling operating frequency and ca-
pacity control valve with operating
pressure.
1) High press. detection.
2) Frequency control and high pres-
sure protection
1) High pressure detection
2) High pressure protection
1) Discharge temperature detection
2) High pressure protection
1) Detects the saturated vapor tem-
perature.
2) Calculates the refrigerant
circulation configuration.
3) Controls the compressor
frequency.
4) Controls the outdoor unit’s fan air
volume.
1) Frequency control
2) Defrost control and liquid level de-
tection at heating
1) Outdoor air temperature detection
2) Fan control, liquid level heater, and
opening setting for oil return
Subcool coil bypass LEV (LEV1) con-
trol
Subcool coil bypass LEV (LEV1) con-
trol
1) Detects the inverter cooling fin
temperature.
2) Provides inverter overheating
protection.
3) Controls the control box cooling
fan.
11
273+t 393
Continuity check
Resistance value
check
Resistance value
check
Name
Outdoor unit
[3] List of Major Component Functions1 1
273+t 273
Gnd (black)
Vout (white)
Vcc (DC5V)
(red)
Con-
nector
Pressure
0~30 kg/cm
2
G
Vout 0.5~3.5 V
63HS
0˚C (32˚F) : 15kΩ
10˚C (50˚F) : 9.7kΩ
20˚C (68˚F) : 6.4kΩ
25˚C (77˚F) : 5.3kΩ
30˚C (86˚F) : 4.3kΩ
40˚C (104˚F) : 3.1kΩ
20˚C (68˚F) : 250k
Ω
70˚C (158˚F) : 34k
Ω
30˚C (86˚F) : 160k
Ω
80˚C (176˚F) : 24k
Ω
40˚C (104˚F) : 104k
Ω
90˚C (194˚F) : 17.5k
Ω
50˚C (122˚F) : 70k
Ω
100˚C (212˚F) : 13.0k
Ω
60˚C (140˚F) : 48k
Ω
110˚C (230˚F) : 9.8k
Ω
-20˚C (-4˚F) : 605.0kΩ
-10˚C (14˚F) : 323.3kΩ
0˚C (32˚F) : 180.9kΩ
10˚C (50˚F) : 105.4kΩ
20˚C (68˚F) : 63.8kΩ
30˚C (86˚F) : 39.9kΩ
40˚C (104˚F) : 25.7kΩ
50˚C (122˚F) : 17.0kΩ
60˚C (140˚F) : 11.5kΩ
70˚C (158˚F) : 8.0kΩ
80˚C (176˚F) : 5.7kΩ
90˚C (194˚F) : 4.1kΩ
100˚C (212˚F): 3.0kΩ
R0=33kΩ
B0/100=3965
Rt =
33exp{3965( – )}
1 1
273+t
273+0
0˚C (32˚F)
: 33kΩ
-10˚C (14˚F) : 55kΩ
-20˚C (-4˚F)
: 92kΩ
10˚C (50˚F)
: 20kΩ
20˚C (68˚F)
: 13kΩ
30˚C (86˚F)
: 8.2kΩ
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36
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