Sharp AE-X08CR, Service Manual

Page: 21 / 49

25
AH/AY-X08CR
AH/AY-X10CR
AH/AY-X13CR
FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES
Function
NO
Description Detection
time
Restart
condition
Restart
times
Indoor Outdoor
Operation Self diagnostic
display
1
2
3
4
5
6
7
Indoor fan
lock
Indoor fan
rpm error
Indoor
freezing
guard
Indoor
overheating
control
DC
overcurrent
AC
overcurrent
Compressor
overheating
control
Compressor
high
temperature
error
Stops operation if no revolution pulse
signal is input from the indoor fan motor for
one minute.
Stops operation if the revolution pulse
signal from the indoor fan indicates low
rpm (approximately 300 rpm or less).
Lowers the operating frequency if the
temperature of the indoor heat exchanger
goes below 5
°
C during cooling. Stops the
compressor if the temperature stays below
0
°
C for 4 minutes.
Lowers the operating frequency if the
temperature of the indoor heat exchanger
rises above the overheating temperature
during heating. Stops the compressor if the
temperature stays above the overheating
temperature for 1 minute at minimum
frequency or less.
Set values for overheating temperature
During normal operation: 46
°
C to 54
°
C
During full power operation: 49
°
C to
58
°
C
Stops the compressor if a current of
approximately 23A or more flows in the
power transistor module.
Lowers the operating frequency if the
compressor AC current exceeds
set valve( ).Show "2-2(1)AC peak control"
Stops the compressor if the current
exceeds at 40Hz or less set valve( ).
Lowers the operating frequency if the
temperature of the compressor chamber
thermistor (TH1) rises above 105
°
C or
101
°
C.
Stops the compressor if the thermistor
stays above 105
°
C or 101
°
C for 1 minutes
at minimum frequency or less.
Stops the compressor if the compressor
chamber thermistor is above 114
°
C.
(Or when TH1 shorts)
When indoor
fan is revolving
During cooling
and dry
During heating
During
compressor
operation
During
compressor
operation
During
compressor
operation
During
operation
Operation OFF
Automatically
restarts when the
exchange
temperature rises
above the freezing
prevention
temperature (above
2
°
C)
Automatically
restarts when the
exchange
temperature goes
below the
overheating
temperature.
Automatically
restarts after safety
time (170 seconds)
Automatically
restarts after safety
time (170 seconds)
Automatically
restarts after safety
time (170 seconds)
Automatically
restarts when
thermistor (TH1)
temperature falls
below 100
°
C
(approximately 30
minutes)
No limit
No limit
No limit
8times
4 times
No limit
4 times
Yes
No
No
Yes
Yes
No
Yes
No
No
No
Yes
Yes
No
Yes
( )
M o d e l
S e t
v a l v e
C o o l
H e a t
7 . 0 A
8 . 5 A
7 . 0 A
6 . 5 A
7 . 9 A 6 . 0 A 6 . 5 A 7 . 9 A
A E - X 0 8 C R A E - X 1 0 C R A E - X 1 3 C R A U - X 0 8 C R A U - X 1 0 C R A E - X 1 3 C R