18
AH-S327W2
AU-S327W2
Function
NO
Description
Detection
time
Restart
condition
Restart
times
Indoor Outdoor
Operation
Self diagnostic
display
6
7
8
9
10
11
12
Compressor
overheating
control
Compressor
high
temperature
error
Outdoor
overheating
control
Outdoor
thermistor
short
Outdoor
thermistor
open
AC abnormal
current error
Serial signal
error
Outdoor
thermo fuse
cut 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.
Stops the compressor if the circuit of an
outdoor thermistor breaks.
Stops the compressor 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.
Stops the compressor if the outdoor
thermo fuse cut.
During
compressor
operation
During
operation
During
compressor
operation
When
compressor is
activated
When
compressor is
activated
During
compressor
operation
During
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
Not restart
No limit
4 times
No limit
4 times
4 times
4 times
No limit
No limit
1 times
No
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Yes
No
Yes
Yes
Yes
Yes
No
13
