Part name
Sign
Function
Date
Note
Compressor
/
Capacity control, meet indoor load
request by adjusting frequency and
opening and closing fixing frequency
compressor.
20°C
Pressure switch
HPS
High pressure protection
4.15Mpa, OFF
LPS
In cooling, compressor frequency
adjustment and protection control for
abnormal pressure.
0~1.7MPa
Electronic
expansion valve
EEV
In heating, refrigerant flow control
(subcooling valve)
Φ3.0
Solenoid valve
SV1
1. Keep balance of high/low pressure
when compressor starts up and stops
2. High/low pressure protection
AC220V
Open when power is on,
close when power is off.
2A
4-way valve
4WV
Changing over between cooling and
heating
AC220V electrified in
heating; powered off in
cooling or defrosting.
Temp. sensor
Td
Detect the top temp. of compressor
R(80°C)=50K
B(25/80°C)=4450K
Ts
Detect the top suction of compressor
R(80°C)=10K
B(25/80°C)=3700K
Tao
Detect ambient temp., set primary fan
speed and control defrost condition
Tdef
Detect frost condition of outdoor heat
exchanger
15
Содержание YEVFD Series
Страница 13: ...3 Dimension 11...
Страница 14: ...4 Function Parts layout 12...
Страница 15: ...5 Center of gravity 13...
Страница 16: ...6 Refrigerant Circuit 14...
Страница 24: ...10 Operation Range 22...
Страница 31: ...29...
Страница 32: ...Case 2 obstacles on the inlet and top side 30...
Страница 35: ...33...
Страница 48: ...13 PCB Photo PCB code 0151800421B LED7 LED2 LED8 LED9 BM1 LED10 LED4 LED3 LED6 LED5 SW1 SW2 SW3 46...