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3.6 Frequency control when Td is too high
Purpose : make compressor frequency control if the discharging temp. is too high, to low
the discharging temp. efficiency and ensure the system can run normally.
3.7
、
Frequency control when there is CT over current
3.8 Oil return operation control
3.8.1 Entering condition
When the compressor running frequency is lower than 58Hz continuously in all and outdoor
unit Tcm is lower than 50 degree for 5 hours, the system will enter oil return operation. In the
course of mode changeover, manual unit stop or protective unit stop, the time will be
accumulative. After compressor restarts up, the time will counted continuously. In counting
time for 5 hour, if the compressor running frequency is over 80Hz for 10 minutes continuously,
the time will be cleared. Also after the heating defrosting , the time will be cleared.
If keeps for 10s, the unit stops. 3 minutes later, the
unit can re-startup. If in 60 minutes the unit occurs
alarm for 3 times, the failure can be eliminated
Reduce FQY rapidly 2HZ/S
Reduce FQY rapidly 1HZ/S
Reduce FQY slowly 1HZ/10S
Remain FQY
Increase FQY slowly 1HZ/10S
Discharging t
emp.
Td
118
℃
115
℃
112
℃
109
℃
105
℃
95
℃
1.00I
0.95I
0.93I
0.90I
0.88I
0.85I
Stop immediately, if abnormal stop 3 times in an
hour, the unit will be stop and alarm .
Reduce FQY rapidly 2HZ/S
Reduce FQY rapidly HZ/S
Reduce FQY slowly 1HZ/10S
Remain FQY
Increase FQY slowly 1HZ/10S
108
Содержание YHKJXH012BAM--FX
Страница 34: ...Model W D H L1 L2 L3 YHUJYH024BAR A X 860 308 730 633 113 5 340 YHUJYH024BAR A X 34...
Страница 36: ...YHFJZH012BAM AFX YHFJZH018BAM AFX YHFJZH024BAR AFX 3 33 100 22 1 1 0 1 0 0 33 36...
Страница 39: ...800 1320 830 1200 170 270 250 365 185 250 60 45 1105 4 758 2 15 88 YHGJXH048 60BAR GX YHEJXH028 36 48BAR GX 39...
Страница 93: ...YHUJYH024BAR A X power module YHUJYH028 36BAR A X power module 93...
Страница 94: ...YHUJYH028 36BAR A X filter board YHUJYH028 36 48BAR A X YHUJYH048BAS A X YHUJYH060BAS A X PCB 0151800054A 94...
Страница 95: ...YHUJYH048BAS A X YHUJYH060BAS A X power module YHUJYH048BAS A X YHUJYH060BAS A X filter board 95...
Страница 96: ...YHUJYH048BAR A X filter board YHUJYH048BAR A X power module 96...
Страница 111: ...5 2 Indoor unit 5 2 1 PCB 0151800106 for 28 36 48 60 indoor unit 111 YHDJXH018BAM GX...
Страница 151: ...151...