Mitsubishi Electric PKA-RP1.6GAL Service Technical Manual page 8

PKA-RP2.5FAL PKA-RP3FAL PKA-RP4FAL
SYMBOL NAME
P.B INDOOR POWER BOARD
F1 FUSE(4A)
ZNR VARISTOR
I.B INDOOR CONTROLLER BOARD
CN2L CONNECTOR(LOSSNAY)
CN32 CONNECTOR(REMOTE SWITCH)
CN41 CONNECTOR(HA TERMINAL-A)
SW1
JUMPER WIRE(MODEL SELECTION)
SW2 JUMPER WIRE(CAPACITY CODE)
SWE SWITCH(EMERGENCY OPERATION)
X4 RELAY(FAN MOTOR)
FC FAN PHASE CONTROL
LED1 POWER SUPPLY(I.B)
LED2 POWER SUPPLY(R.B)
LED3 TRANSMISSION(INDOOR-OUTDOOR)
INDOOR UNIT
MF
1 2 3
C
I.B
POWER
1 3 5
FAN
(RED)
(WHT)
X4
FC
X4
SWE SW2 SW1
ON
OFF
SW1
MODELS
Manufacture Manufacture
2.5FAL
J11 J12 J13 J14 J15 J21
Service board
3FAL
1 2 3 4 5
ON J21
OFF
4FAL
J21
NOTES:
1.Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.
2.Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal numbers(S1, S2, S3).
3.Symbols used in wiring diagram above are,
[Self-diagnosis]
An explanation of the wireless remote controller self checking operations, check codes, buzzer sounds and LED signals are given
below. For check codes and symptom see the table below please.
1.Press the CHECK button twice continuously.
• CHECK begins to light and refrigerant address display
"00" begins to blink.
• Start this operation from the status of remote controller
display turned off.
2.Press the TEMP , buttons.
• Set the refrigerant address of the indoor unit that is to
be self-diagnosed.
• Set the refrigerant address of outdoor unit by outdoor unit
dip switch "SW1".
(Refer to installation manual of outdoor unit for the detail.)
Check code Operation lamp
P1 1SEC.FLASH 1
P2 1SEC.FLASH 2
P4 1SEC.FLASH 4
P5 1SEC.FLASH 5
P6 1SEC.FLASH 6
P8 1SEC.FLASH 8
P9 1SEC.FLASH 2
U0~UL (0.4+0.4)SEC.FLASH
F1~F9
E6~EF DIFFERENT FROM ABOVE
---- OFF
FFFF OFF
SYMBOL
C CAPACITOR(FAN MOTOR)
MF FAN MOTOR
MV VANE MOTOR
TB4 TERMINAL BLOCK(INDOOR/OUTDOOR
CONNECTING LINE)
TB5 TERMINAL BLOCK(REMOTE CONTROLLER
TRANSMISSION LINE)(OPTION)
TH1 ROOM TEMPERATURE THERMISTOR
(0°C/15kΩ, 25°C/5.4kΩ DETECT)
TH2 PIPE TEMPERATURE THERMISTOR/LIQUID
(0°C/15kΩ, 25°C/5.4kΩ DETECT)
TH5 CONDENSER / EVAPORATOR TEMPERATURE
THERMISTOR (0°C/15kΩ, 25°C/5.4kΩ DETECT)
CN2S(WHT)
2
1
3
2
1
CONT.BOARD
CN02 (WHT)
1 3 5 1 2
CN03
POWER
CN2D (WHT)
LED3 LED2 LED1
HEATER INTAKE
CN24 CN20
(YLW) (RED)
1 2 1 2
SW2
Service board
1 2 3 4
TH1
ON
OFF
J22 J23 J24
1 2 3 4
ON
OFF
J22 J23 J24
1 2 3 4
ON
OFF
J22 J23 J24
:Connector,
Buzzer sound
Single beep 1
Single beep 2
Single beep 4
Single beep 5
Single beep 6
Single beep 8
Single beep 2
1 Double beep 1
Sounds other than
above
No sound
Triple beep
NAME
P.B
F1
DC14V
ZNR
YLW
1
ORN
2
BRN
3
OUTDOOR
CN01 (BLU)
MV
VANE
CN6V 6
(WHT)
CN41 CN2L
WIRELESS
CN25 CN32
CN90
(WHT)
LIQUID PIPE REMOCON
CN21 CN29 CN22
(WHT) (BLK) (BLU)
1 2 1 2 1 2
2
1
TB5
TH2 TH5
:Terminal (block).
3.While pointing the remote controller toward the unit's
receiver, press the h button.
• The check code will be indicated by the number of times
that the buzzer sounds from the receiver section and the
number of blinks of the operation lamp.
4.While pointing the remote controller toward the unit's
receiver, press the ON/OFF
• Self-check mode is canceled.
Abnormality of room temperature thermistor(TH1).
Abnormality of pipe temperature thermistor/Liquid(TH2).
Abnormality of drain sensor(DS).
Malfunction of drain-up machine.
Freezing /overheating protection is working.
Abnormality of pipe temperature.
Abnormality of pipe temperature thermistor/ Condenser/Evaporator(TH5).
Abnormality in outdoor unit. Refer to outdoor unit wiring diagram.
Abnormality of signal transmission between indoor unit and outdoor unit
("EE" indicates abnormality of combination).
No trouble generated in the past.
No corresponding unit.
8
SYMBOL NAME
W.B WIRELESS REMOTE CONTROLLER BOARD
RU RECEIVING UNIT
BZ BUZZER
LED1 LED(RUN INDICATOR)
LED2 LED(HOT ADJUST)
SW1 SWITCH(HEATING ON/OFF)
SW2 SWITCH(COOLING ON/OFF)
R.B REMOTE CONTROLLER BOARD(OPTION)
CN2 CONNECTOR(SCHEDULE TIMER)
TB6 TERMINAL BLOCK(REMOTE CONTROLLER
TRANSMISSION LINE)
TB4
S1
S2
TO OUTDOOR UNIT
S3
9
W.B
RECEI
CNB
-VER BZ
RU LED1 LED2 SW2 SW1
TRANSMISSION WIRES DC12V
Please set the voltage
using the remote controller.
For the setting method,
please refer to the indoor
unit Installation Manual.
button.
Symptom
R.B
TB6
2 1
CN2