Chff^j\bZe Abj Chg]blbhg^j
z
39
z
43
Master discharge temp. sensor alarm in
low frequence
When inverter compressor frequence is lower than 30Hz,
TD1 is higher than 110
44
Communication error between master
unit MB89F538 and MCU 807(indoor)
No signal for over 4 minutes
45
Communication error between master
unit MB89F538 and MCU 807 (indoor)
MB89F538 and 807
central controller
No signal from indoor unit or central controller for over 4
seconds
46
Communication error between master
unit connecting board and inverter PCB
No signal for over 2 minutes
49
Master inverter drive PCB EEPROM
error
EEPROM data is lost or installed in wrong way.
50
The total capacity of indoor units is too
high
Total capacity of indoor units>outdoor capacity x 135%
51
Outdoor communication signal is lost
52
Indoor units is over than 64 sets
53
Central control address repeat
Check the address of all indoor units
54
Master unit oil temp. is over-low
In running, the temp. of compressor oil is lower than
(ps+10
for 5 minutes
69
Slave unit is lost
Communication of slave unit error or switched off
70
Shortage of refrigeration
Only show diagnostic code, doesn
t stop units
Summary of Contents for YR-H71
Page 10: ...10 once...
