Sharp AH-S22AW2 Service Manual page 20

AH-S22AW2
AH-S25AW2
Function
NO
8 Outdoor Lowers the operating frequency if the
heating temperature of the outdoor heat exchanger
exchanger rises above 57°C during cooling. Stops the
overheating compressor if the temperature stays above
control 57°C for 1 minute at 35 Hz or less.
9 Outdoor Stops the compressor if an outdoor
thermistor thermistor (excluding TH1) shorts.
short
10 Outdoor Stops the compressor if the circuit of an
thermistor outdoor thermistor breaks.
open
11 AC abnormal Stops the compressor if if the operating
current error frequency is above 85 Hz and the
compressor current is below 1.0 A.
12 Serial signal Turns the compressor relay off if the indoor
error 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.
13 Indoor Stop operation
terminal The reason that the fuse operation is by
board thermal connecion error at the inside of terminal
fuse board.
operation
14 Outdoor Stop operation
terminal The reason that the fuse operation is by
board thermal connecion error at the inside of terminal
fuse board.
operation
Operation
Description
During
compressor
operation
When
compressor is
activated
When
compressor is
activated
During
compressor
operation
During
operation
During
operation
During
operation
During
operation
20
Detection Restart
time condition
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
Exchange of
terminal board
Exchange of
terminal board
Self diagnostic
display
Restart Indoor Outdoor
times
o limit No No
4 times Yes Yes
4 times Yes Yes
4 times Yes Yes
No limit Yes
No limit Yes
No No
No No