No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
If connection between pressure
switch and connecting board is
good
If the system pressure meets the
condition that pressure switch
shuts off
Make pressure switch
close, measure if terminal
is conductive by multimeter
If the system is clogged
Make pressure switch terminal
on connecting board in short
circuit, check if failure exists still
If sensor resistor
/characteristic is proper
If sensor terminal is fixed
well
If the system is
lack of refrigerant
Replace connecting
board
Replace pressure switch
and measure again
Re-connect
Replace pressure switch
Check the piping system
Replace connecting board
Reconnect
Replace sensor
Charge refrigerant
[30] High pressure switch shutoff failure
[34] Protection of discharging temp. too high
63
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...