23
Domestic air conditioner
HSU-09/12RS03/R2(SDB)
Function and control
5.2.6.2 TD High Temperature Protections
As long as unit is on, the TD air discharge overheat protection feature will be activated, yet air
discharge sensor fault must be alarmed 4 minutes after compressor starts.
TD
˄
ć
˅
Abnormal Shutdown
117
Rapid frequency drop
˄
1HZ/s
˅
112
Slow frequency drop (1HZ/10s)
108
Invariable frequency
105
Frequency rise (1HZ/10s)
98
Frequency rise
˄
1HZ/1 s
˅
When TD>117
for 20s continuously
ć
ˈ
air discharge overheat protection will be activated and fault will
be reported to indoor unit.
It will not continue in other conditions.
5.2.6.3 Indoor Heat Exchanger Anti-freeze Protection
Anti-freeze during cooling
When TC < 2
ć
ˈ
compressor frequency will drop at a speed of 1HZ/10s
When TC starts to rise
ˈ
and 4
TC
6
ć
ˈ
compressor frequency will remain unchanged.
When 96< TC , frequency will rise nomal.
If TC
0
ć
ˈ
for 2 consecutive minutes, compressor will shutdown and outdoor fault lamp blinks. Fault
will not be reported to indoor unit.
When compressor shuts down for more than3 minutes
ˈ
and when TC>9
ć
ˈ
compressor will restart.
stop
1Hz/10sec
2
ć
ˌć
4
ć
6
ć
