- 53 -
Low pressure shell scroll type
with capacity control mechanism
Winding resistance:
Each phase 0.388
Ω
(20˚C)
Setting 2.94MPa OFF
R
120
=7.465k
Ω
B
25/120
=4057
Rt = 7.465exp
{4057( - )}
R
0
=33k
Ω
B
0/100
=3965
Rt =
33exp{3965( - )}
-20˚C :
92k
Ω
-10˚C :
55k
Ω
0˚C :
33k
Ω
10˚C :
20k
Ω
20˚C :
13k
Ω
30˚C : 8.2k
Ω
R
0
=15k
Ω
B
0/100
=3460
Rt =
15exp{3460( - )}
0˚C : 15k
Ω
10˚C : 9.7k
Ω
20˚C : 6.4k
Ω
25˚C : 5.3k
Ω
30˚C : 4.3k
Ω
40˚C : 3.1k
Ω
MC
63HS
63H
TH1
(discharge)
TH2
(low pressure
saturation
temperature)
TH5
(piping
temperature)
TH6 (outdoor
air tempera-
ture)
TH7
(subcool coil
outlet
temperature)
TH8
(subcool coil
bypass outlet
temperature)
TH9
Compressor
High
pressure
sensor
Pressure
switch
Thermistor
Adjust refrigerant circulation by
controlling operating frequency and
capacity control valve with operating
pressure.
1) High press. detection.
2) Frequency control and high
pressure protection
1) High pressure detection
2) High pressure protection
1) Discharge temperature detection
2) High pressure protection
20˚C : 250k
Ω
70˚C :
34k
Ω
30˚C : 160k
Ω
80˚C :
24k
Ω
40˚C : 104k
Ω
90˚C : 17.5k
Ω
50˚C : 70k
Ω
100˚C : 13.0k
Ω
60˚C : 48k
Ω
110˚C : 9.8k
Ω
1) Detects the saturated vapor
temperature.
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
detection at heating
1) Outdoor air temperature detection
2) Fan control, liquid level heater,
and opening setting for oil return
Subcool coil bypass LEV (LEV1)
control
Subcool coil bypass LEV (LEV1)
control
1) Detects the CS circuit fluid
temperature.
2) Calculates the refrigerant
circulation configuration.
Name
Application
Specification
Check method
Pressure
0~2.94MPa
Vout 0.5~3.5 V
Gnd (black)
Vout (white)
Vcc (DC5V) (red)
Con-
nector
1
273+t
1
273+t
1
273+t
Continuity check
Resistance value
check
Resistance value
check
Symbol
(function)
1
273+120
1
273+0
1
273+0
1 2 3
1
2
3
63HS
Con-
nector
1 2 3
1
2
3
63LS
63LS
Low
pressure
sensor
1) Detects low pressure
2) Calculates the refrigerant circulation
configuration.
3) Protects the low pressure
Pressure
0~0.98MPa
Vout 0.5~3.5 V
Gnd (black)
Vout (white)
Vcc (DC5V) (red)
2
2
List of Major Component Functions
(1) Outdoor Unit
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