56
Part name Sign Function Data Remark
Compressor /
"Capacity control, to meet indoor load through
frequency adjustment."
ANB52FKQMT:
0.302Ω
20°C
ANB66FVAMT: 0,23Ω
ANB78FVAMT: 0,23Ω
Pressure switch HPs1/2 Protection control for high pressure 4.15Mpa, OFF setting
Pressure sensor
Pd1
In heating , compressor frequency adjustment and
protection control for abnormal pressure
0~4.15MPa
Ps
In cooling , compressor frequency adjustment and
protection control for abnormal pressure
0~1.7MPa
Electronic
expansion
valve
LEVa1, 2 Refrigerant ow control in heating
8-14HP:Ø3.0
16-22HP:Ø4.0
LEVb
Sub-cooling valve, in cooling, be controlled as the
Tliqsc target.
8-22HP:Ø2.5
Solenoid valve
SV1
1. Balance between high and low pressures when the
compressor starts and stops;
AC220V 2A
2. Protection to prevent high and low pressures.
SV3
Started when the compressor discharging
temperature and oil temperature are too high to carry
out temperature reduction by refrigerant spraying.
AC220V 2A
SV10
Outdoor unit SV10 for oil suction starts during oil
balance; for pressure relief to prevent explosion of
pipe group.
AC220V 2A
SV9
The outdoor unit for oil discharging starts SV9 for oil
balancing during oil balance among modules.
AC220V 2A
Four-way valve
4WV1 Switch between cooling and heating AC220V Power on
during heating and
power off during
cooling or defrosting.
4WV2 Switch between cooling and heating
4WV3 Change over between cooling and heating
AC220V, power on in
heating; power off in
cooling or defrosting
Unloading valve DPC
Avoid the oil equalization circuit being blocked by
liquid seal.
Opened when the
circuit’s pressure is
over 4.1MPa
Temperature
sensor
Toil1/2
To detect the temperature of refrigeration lubricant at
the compressor bottom.
"R (80°C ) = 50K
B (25/80°C )=4450K
Tsacc
To detect the inlet temperature of gas-liquied
seperator
Td1/Td2
To detect the top temperature of inverter/ON-OFF
compressor.
Tdef1
Tdef2
To detect the frosting of outdoor heat exchanger.
R(25°C )=10K,
B(25°C /50°C ) =3700
K
Toci1
Toci2
To detect the temperature of condenser main gas
pipe to control LEVa1, 2 during heating.
Tao
To detect ambient temperature and control the initial
air speed and defrosting conditions.
Tsco
Detect the branch outlet pipe’s temp. of heat
regenerator in order to control LEVb during cooling.
Tliqsc
Detect the main outlet pipe’s temp. of heat
regenerator in order to control LEVb during cooling.
CH1/2
Used to heat the compressor oil in the inverter
compressor.
33W, 220V, 2 pieces/
compressor
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