14
Unit Introduction
Basic configuration:
Short circuit chart(search code 142)
Model
65
130
65
130
Efficiency
3
3
2
2
Refrigerant
R410A
R410A
R410A
R410A
PCB
HW plus
Structure
Parallel system, compressors can
start separately
2 compressors, 2 independent
systems
Parallel system, compressors can start separately
Defrost
Defrost in and out judging condition: pressure
Compressor
VP144-KFE-420
CH290
VP144-KFE-420
Evaporator
Water flow: one pipe inlet and
one outlet
Water flow: two pipes inlet and
two outlet
Water flow: one pipe inlet and
one outlet
Water flow: two pipes inlet and
two outlet
Condenser
2.5row-7mm
4row-7mm
3row-7mm
5row-7
.94
mm
EXV
DPF(TS1)3.2C
DPF(O)8.0C
DPF(TS1)3.2C
DPF(O)8.0C
Model
Capacity Sequence Efficiency
IND2
IND7
TH4
Controller Code
CX(G)AJ1305B1H***
130-F-H
0
CX(G)AJ1305B1N***
130-F-N
Short circuit
2
CX(G)AJ0655B1H***
CX(G)AJ0655B1N***
065-F-N
065-F-H
Short circuit
3
NA
99
3-2. Main Components and Function Chart
Main Components
Function Description
Compressor
Supply power, compress refrigerant and force to circulate in the system
EXV
Control refrigerant flow rate by adjusting opening through pressure or temperature changes
Fin-coil Heat Exchanger
Heat exchange with outdoor air
Gas-liquid Separator
Separate gas and liquid to prevent liquid hammer to compressor
Shell-tube Heat Exchanger
Exchange heat between refrigerant and water, conduct cooling capacity to indoor unit by water
4-way Valve
Change refrigerant flow way between cooling and heating mode
High Pressure Switch
Prevent compressor discharge pressure over high, acting pressure is 4.2 MPa, recover pressure is 3.3MPa
Low Pressure Switch
Compressor low pressure protection, acting pressure is 0.15MPa, recover pressure is 0.25MPa
Liquid Receiver
Receive liquid refrigerant when heating
Temperature Sensor
Detect temperature as the judging condition of unit operation and adjustment
Filter
Filt impurities to avoid to go into refrigerant system
Liquid Injection EXV
Inject liquid to make sure compressor discharge temperature is normal based on discharge temperature
Liquid Injection Solenoid Valve
Doordinate inject liquid EXV on-off based on discharge temperature
Distinguishing code when electricity on. no influence while unit is running. alarm if it's not a valid code in this chart.
