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17.5.4 Compressor current limit protection
Temperature interval.of current limit is same as range of T4 limited frequency.
Cooling mode:
T 4
C o o lZ o n e 5
C o o lZ o n e 4
C o o lZ o n e 3
C o o lZ o n e 2
C o o lZ o n e 1
Heating mode:
T 4
H e a tZ o n e 4
H e a tZ o n e 3
H e a tZ o n e 2
H e a tZ o n e 1
17.5.5 Indoor / outdoor units communication protection
If the indoor units cannot receive the feedback signal from the outdoor units for 2 minutes, the AC will stop
and display the failure.
17.5.6 High condenser coil temp. protection.
T 3
R e s u m e
O ff
D e c r e a s e
H o ld
17.5.7 Outdoor unit anti-freezing protection
When T2<4
℃
for 250 seconds or T2<0
℃
, the indoor unit capacity demand will be zero and resume to
normal when T2>8
℃
and the time of protection is no less than 3 minutes.
17.5.8 Oil return
Running rules:
1. If the compressor frequency keeps lower than setting frequency for setting time, the AC will rise the
frequency to setting frequency for setting time and then resume to former frequency.
2. The EXV will keep 300p while the indoor units will keep the current running mode.
Summary of Contents for 38QUS014DS2 series
Page 1: ...SUPER INVERTER SERIES MULTI TYPE Service Manual 2018...
Page 14: ...11 5 Easy operation 6 Remote control and optional wired control method...
Page 17: ...14 3 3 Console 1 6 D ra in p ip e 1 9 5 H a n g in g a rm 7 0 0 6 0 0 2 1 0...
Page 20: ...17 3 6 Ducted A5...
Page 21: ...18 A6...
Page 25: ...22 4 5 Ceiling Floor Type 4 6 Hi wall...
Page 26: ...23 5 Wiring diagram 38QUS014DS2 38QUS014DS2 2 38QUS018DS2 2 38QUS018DS2...
Page 27: ...24 38QUS021DS3 38QUS027DS3...
Page 28: ...25 38QUS028DS4 38QUS036DS4...
Page 29: ...26 38QUS042DS5 42QHC007D8S 42QHC009D8S 42QHC012D8S 42QHC018D8S 42QHC024D8S 16022000A83297...
Page 30: ...27 42QTD007D8S 42QTD009D8S 42QTD012D8S 42QTD018D8S 42QTD009DS 42QTD012DS 42QTD018DS 42QTD024DS...
Page 31: ...28 42QSS012DS 42QSS007D8S 42QSS009D8S 42QSS012D8S...
Page 32: ...29 42QSS018DS 42QSS024DS 42QZA009DS 42QZA012D8S 42QZA018DS...
Page 33: ...30 6 Static Pressure A5 Ducted...
Page 50: ...47 13 Wiring diagram 38QUS014DS2 38QUS014DS2 2 38QUS018DS2 38QUS018DS2 2...
Page 52: ...49 38QUS027DS3 38QUS036DS4...
Page 53: ...50 38QUS042DS5...