63
63
Troubleshooting
If connection between 4-way valve
and connecting board is good
If system meets condition
of 4-way valve reversing:
Pd-Ps>0.6MPa
Replace 4-way valve
Re-connect
Check if SV1 leaks
Replace connecting board
Check compressor
Measure if CN49 voltage
on connecting board is
220VAC after 4-way valve
reversing condition is met
If there is air noise after 4-way
valve reverses, and if the temp. of
connection pipes with 4-way valve
is normal
If compressor running
current is normal
No
No
No
No
No
Yes
Yes
Yes
Yes
[35] 4-way valve reversing failure
Содержание AV08NMSETA
Страница 1: ...SYJS 11 2016 REV A Edition 2016 11 Service Manual MRV SII ...
Страница 15: ...13 13 Dimension 4 Dimension 1050 D ...
Страница 25: ...23 23 Outdoor Installation Multi Outdoor Min300mm Min300mm Min360mm Min300mm Inlet Outlet h A ...
Страница 53: ...51 51 Dip Switch Setting 11 Dip Switch Setting Outdoor PCB photo BM2 SW1 SW2 SW3 SW4 LED3 LED1 BM1 LED2 LED4 ...