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15. Electronic Function
15.1 Abbreviation
T1: Indoor room temperature
T2: Coil temperature of indoor heat exchanger
middle.
T2B: Coil temperature of indoor heat exchanger
outlet.
T3: Coil temperature of condenser
T4: Outdoor ambient temperature
T5: Compressor discharge temperature
Td: Target temperature
15.2 Display function
15.2.1 Icon explanation on indoor display board
(A5 Duct)
15.2.2 Icon explanation on indoor display board
(Compact cassette).
15.2.3 Icon explanation on indoor display board
(slim Cassette).
15.2.1 Icon explanation on indoor display board
(Ceiling Floor)
15.3 Main Protection
15.3.1 Three minutes delay at restart for
compressor
1 minute delay for the 1
st
time stand-up and 3
minutes delay for others.
15.3.2
Temperature
protection
of
compressor top
The unit will stop working when the compressor
top temp. protector cut off, and will restart after
the compressor top temp. protector restart.
15.3.3
Temperature
protection
of
compressor discharge
When the compressor discharge temp. is
getting higher, the running frequency will be
limited as below rules:
---Compressor discharge temp. T5>115
℃
(239°F) for 5s, compressor stops and restarts
up till T5<90
℃
(194°F)
---110<T5<115
℃
(239°F),
decrease
the
frequency to the lower level every 2 minutes.
---105(221°F)<T5<110
℃
(230°F), keep running
at the current frequency.
----T5<105
℃
(221°F), no limit for frequency.
15.3.4 Fan speed malfunction
When indoor fan speed keeps too low (lower
than 300RPM) for 50s, the indoor fan will shut
off and restart 30s later, if protection happened
3 times when fan motor restarts continuously,
the unit will stop and the LED will display the
failure.
When outdoor fan speed keeps too low (lower
than 100RPM) or too high (higher than
1500RPM) for 60s, the unit will stop and the
LED will display the failure. Malfunction is
cleared 30s later.
OPERATION TIMER DEF./FAN
ALARM
Temporary button
Operation lamp
Timer indicator
Infrared signal receiver
Alarm indicator
PRE-DEF indicator(cooling and heating type)
or fan only indicator(cooling only type)
MANUAL
Display digital tube
Summary of Contents for 38QUA009DS
Page 8: ...5 2 2 Part names of Indoor Outdoor units Cassette Unit...
Page 9: ...6 A5 Ducted Units A6 Ducted Units...
Page 10: ...7 Floor ceiling Units...
Page 11: ...8 HESP DUCTED Units...
Page 35: ...32 6 Wiring Diagram 6 1 Indoor Unit 40QTD018DS 40QTD024DS 40QTD036DS 40QTD048DS...
Page 36: ...33 40QSM018DS 40QSM024DS 40QSM036DS 40QSM048DS...
Page 37: ...34 40QZL018DS 40QZL024DS 40QZL036DS...
Page 38: ...35 40QZL048DS 40QZL060DS...
Page 40: ...37 6 2 Outdoor Unit 38QUA018DS 38QUA024DS...
Page 41: ...38 38QUA036DS...
Page 42: ...39 38QUA048DS 38QUA060DS...
Page 44: ...41 40QSM018DS Code 0 Code 1 Code 2 Code 3 Code 4...
Page 45: ...42 40QSM024DS Code 0 Code 1 Code 2 Code 3 Code 4...
Page 46: ...43 40QSM036DS Code 0 Code 1 Code 2 Code 3 Code 4...
Page 47: ...44 40QSM048DS Code 0 Code 1 Code 2 Code 3 Code 4...
Page 60: ...57 12 Field Wiring 18K 24K 36K 48K...
Page 61: ...58 60K...
Page 104: ...101 P U P V...
Page 105: ...102 P W P N...