Hitachi RAC-25CNH11, Руководство по обслуживанию

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SELF—DIAGNOSIS LIGHTING MODE : LIT : BLINKING : OFF
( 3 ) L I G H T I N G M O D E I N T H E O P E R AT I O N W I T H C O M P R E S S O R L E A D
D I S C O N N E C T E D
( 1 ) D I S C O N N E C T T H E C O N N E C TO R S O F T H E L E A D C O N N E C T E D TO
T H E C O M P R E S S O R .
( 2 ) S E T TO T H E O P E R AT I O N M O D E A N D P R E S S T H E S TA RT / S TO P
S W I T C H .
( 3 ) W H E N T H E O P E R AT I O N A B O U T 1 m i n . N O R M A L LY ( L D 3 0 3 L I G H T S ) .
T H E E L E C T R I C A L PA RT S I N T H E O U T D O O R U N I T ( E S P E C I A L LY
P OW E R M O D U L E ) C A N B E T H O U G H T TO B E N O R M A L .
SERVICE
OPERATION
CAUTION
TO C O L L E C T R E F R I G E R A N T O R TO O P E R AT E O U T D O O R
U N I T I N D E P E N D E N T LY, T U R N O F F P OW E R S W I T C H O F
T H E I N D O O R U N I T O N C E , T H E N T U R N O F F AG A I N A N D
S E T T H E S E RV I C E S W I T C H TO C O O L S I D E . ( C O O L I N G
C Y C L E I S S E T. )
TO O P E R AT E U N I T AG A I N , B E S U R E TO R E T U R N
S E RV I C E S W I T C H TO N O R M A L , A N D T U R N O F F P OW E R
S W I T C H , T H E N T U R N I T O N AG A I N .
B E S U R E TO C H E C K T H AT P OW E R S W I T C H I S T U R N E D
O F F B E F O R E S E RV I C I N G .
( N OT E 1 )
L D 3 0 1 B L I N K I N G 9 T I M E S M O D E O C C U R S N OT O N LY B E C AU S E
O F C O M M U N I C AT I O N S E R RO R , B U T A L S O W H E N FA L L S I G NA L
I S S E N T TO I N D O O R U N I T 8 T I M E S W I T H I N 3 0 M I N U T E S . C H E C K
W H E T H E R O R N OT D E H U M I D I F Y I N G L A M P O N I N D O O R U N I T I S
B L I N K I N G .
L
D
3
0
1
RED
BLINKING
1 TIME
2 TIMES
3 TIMES
4 TIMES
5 TIMES
6 TIMES
7 TIMES
8 TIMES
9 TIMES
10 TIMES
L
D
3
0
2
RED
NORMAL
OPERATION
SERVICE
OPERATION
NORMAL
STOP
RESET
STOP
PEAK CURRENT
CUT
ABNORMAL
LOW SPEED
ROTATION
SWITCHING
FAILURE
OVERLOAD
LOWER LIMIT
CUT
OH, FIN
THERMISTOR
TEMP. RISE
ABNORMAL
POWER
VOLTAGE
THERMISTOR
ABNORMAL
ACCELERATION
DEFECTIVE
COMMUNICA—
TIONS ERROR
OVERLOAD
(1)
OVERLOAD
(2)
OVERLOAD
(3)
COMPRESSOR
OPERATION
NOT MALFUNCTION
THIS SHOWS AN
OVERLOAD.
NOT MALFUNCTION.
THE ROTATION SPEED IS
AUTOMATICALLY CONT-
ROLLED TO PROTECT THE
COMPRESSOR IN THE
OVERLOAD CONDITION.
ONLY BLINKS WHEN LOW
FREQUENCY SYNC STARTS IN
THE FORCED COOLING
OPERATION.
INDOOR THERMOSTAT OFF.
MAIN OPERATION OFF.
WHEN STOPPED WITH
POWER RESET.
(NORMAL WHEN POWER
HAS BEEN TURNED ON.)
1 POWER MODULE 2 COMP-
RESSOR
3
CONTROL P.W.B.
(DRIVE CIRCUIT. POSITION
DETECTION CIRCUIT. ETC.)
1
POWER MODULE
2
COMP-
RESSOR 3 CONTROL P.W.B.
(DRIVE CIRCUIT. POSITION
DETECTION CIRCUIT. ETC.)
1
OUTDOOR UNIT IS EXPOSED TO DIRECT
SUNLIGHT OR ITS AIRFLOW BLOCKED.
2
FAN MOTOR
3
FAN MOTOR CIRCUIT
1
INCORRECT CONNECTION OF CABLES
2
DISCONNECTION OF CABLE
3 INDOOR/OUTDOOR INTERFACE
CIRCUIT
SWITCHING FROM LOW
FREQUENCY SYNC START
TO POSITION DETECTION
OPERATION FAILURE.
UNDER THE LOWER LIMIT
OF ROTATION SPEED
WITH OVERLOAD CONTROL
CIRCUIT OPERATED.
THERMISTOR IS OPEN OR
SHORTED.
(OH. OUTER TEMPERATURE.
DEF. THERMISTOR)
OVERCURRENT
IS DETECTED.
NOT MALFUNCTION.
POSITION DETECTION
SIGNAL IS NOT INPUT
DURING OPERATION.
CONTROL P. W .B.
(POWER CIRCUIT,
MICROCOMPUTER, ETC.)
1 POWER MODULE
2 COMPRESSOR
3
CONTROL P. W. B.
1
LEAK OF REFRIGERANT
2 COMPRESSOR
3 THERMISTOR CIRCUIT (OH)
1 POWER VOLTAGE
2
CONNECTION OF
REACTOR
1
LEAK OF REFRIGE-
RANT
2
COMPRESSOR
1 THERMISTOR 2 CONNECTION
OF THERMISTOR DEFECTIVE
3 THERMISTOR CIRCUIT
OH THERMISTOR OR
FIN THERMISTOR IS
OPERATED.
NO ACCBLERATION OVER
THE LOWER LIMIT OF
THE ROTATION SPEED.
POWER VOLTAGE IS
ABNORMALLY LOW.
COMMUNICATIONS
STOPPED.
TURNING ON AND OFF ARE REPEATED AT BLINKING
INTERVAL OF 0.25 SEC. IN BLINKING.
1
INTERFACE CIRCUIT
2
OUTDOOR P. W. B.
3
SERVICE SWITCH
ROTA-
TION
SPEED
SET
VALUE
(3)
TIME
(2) (1)
SELF—DIA—
GNOSIS NAME
[1] DURING OPERATION
[2] DURING STOP
LD303 (RED) GOES OFF.
LD303 (RED) LIGHTS.
DETAILS MAIN CHECK POINT
EXAMPLE OF
BLINKING
(5 TIMES)
2 S E C .
LIGHTS FOR 0.25 SEC
AT INTERVAL
OF 0.25 SEC.
. . .
[ MODEL RAC-25CNH11 ]