Sharp AY-X127E - Compressor and Thermistor Protection

AH-X127E
AU-X127E
AY-X127E
AE-X127E
27
Function
NO
Description Detection 
time
Restart 
condition
Restart 
times
Indoor Outdoor
Operation Self diagnostic
display
7
8
9
10
11
12
13
Compressor
overheating
control
Compressor
high
temperature
error
Outdoor
overheating
control
Outdoor
thermistor
short
Outdoor
thermistor
open
AC abnormal
current error
Serial signal
error
Lowers the operating frequency if the
temperature of the compressor chamber
thermistor (TH1) rises above 105 ~107°C.
Stops the compressor if the thermistor
stays above 104 ~ 106°C for 4 minutes,
or 1 minute at minimum frequency or less.
Stops the compressor if the compressor
chamber thermistor is above 114°C.
(Or when TH1 shorts)
Lowers the operating frequency if the
temperature of the outdoor heat exchanger
rises above 57°C during cooling. Stops the
compressor if the temperature stays above
57°C for 4 minutes, or 1 minute at
minimum frequency or less.
Stops the compressor if an outdoor
thermistor (excluding TH1) shorts.
(Except for the AU-X127E)
Stops the compressor if the circuit of an
outdoor thermistor breaks.
(Except for the AU-X127E)
Stops the compressor if if the operating
frequency is above 70 Hz and the
compressor current is below 1.0 A.
Turns the compressor relay off if the indoor
unit does not receive a serial signal from
the outdoor unit for 8 minutes.
Stops the compressor if the outdoor unit
does not receive a serial signal from the
indoor unit for 30 seconds.
During
compressor
operation
During
operation
During
compressor
operation
When
compressor is
activated
When
compressor is
activated
During
compressor
operation
During
operation
During
operation
Automatically
restarts after safety
time (170 seconds)
Automatically
restarts when
thermistor (TH1)
temperature falls
below 100°C
(approximately 30
minutes)
Automatically
restarts after safety
time ( (170 seconds)
Automatically
restarts after safety
time (170 seconds)
Automatically
restarts after safety
time (170 seconds)
Automatically
restarts after safety
time (170 seconds)
Automatically
restarts less than 8
minutes after
operation stops
Restarts after
reception of serial
signal
No limit
4 times
No limit
4 times
4 times
4 times
No limit
No limit
No
Yes
No
Yes
Yes
Yes
Yes
No
Yes
No
Yes
Yes
Yes
Yes