Mitsubishi Electric PAC-AK31BC, Техническое и сервисное руководство

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MXZ-8A140VA
1
MXZ-8A140VA
2
1
C. B.
MF1
4
5
6
7
CNF1 (WHT)
CN2 (WHT)
CN4 (WHT)
CN3S
(WHT)
CNDM
(WHT)
CN51
(WHT)
CNAC (WHT)
TH7/6 (RED)
TH3 (WHT)
1
21
2
TH4 (WHT) 1
2
3
4
63HS (WHT) 12
3
63H (YL
W)
31
63L
(RED)
31
CNIT (RED)
12
35
4
TH7
TH6
TH3
TH4
63HS
63H
63L
1
MF2
4
5
67
CNF2 (WHT)
CNDC (PNK)
CNS (WHT) 31 32
1
52C (BLK)
31
21S4 (GRN)
3
1
SV2 (BLU)
3
1
SV1 (GR
Y
)
31
SS
(WHT)
3
1
FUSE2 FUSE1
FUSE3 FUSE4
21S4
SV2
SV1
12 3
4
7
65
4
321
54 32 1 32 1
32 1
2
1
CNAF (WHT)
CNDC (PNK)
CN2 (WHT)
CN5 (RED)
7
654
32
1
21
CN3 (WHT)
2
1
CN4 (WHT)
2
1
6
543
21
13
TH8
IPM
LED1
WHT
BLK
B
LK
ACTM
RS
RED WHT
WHT
BLK
RED
RED
TABP1
TABP2
TABN1
TABN2
TABN
TABP
TABS
TABT
BLU
WHT
DCL
TB1
NO FUSE BREAKER 40 A
BRANCH BOX
POWER SUPPL
Y
~/N 220/230/240V 50Hz 220V 60Hz
CE
L
N
S1
S2
S3
52C
N. F
.
P.
B
.
MC
CNAC2 (RED)
31
CNAC1 (WHT)
31
LI
NI
L0
N0
CN5 (RED)
2
1
EI
W
V
U
P
N1 N2
I
654
3
2
1
L1
L2
SW5
SW6 SW1 CN31
SW7 SW2
SW8 SW4
SW9 SW10
7SEG LED
88
SYMBOL
SYMBOL
SYMBOL
NAME
NAME
NAME
TB1 MC MF1, MF2 21S4 SV1 SV2 63HS 63L TH3 TH4 TH6 TH7 TH8 DCL 52C RS ACTM CE
P.
B
63H
Te
rminal Block (Power Supply
, Branch)
Motor for Compressor Fan Motors Solenoid V
alve (Four-W
ay V
alve)
Solenoid V
alve (Hot Gas Bypass)
Solenoid V
alve (Returning oil Bypass)
High pressure Sensor High pressure Switch Low pressure Switch Thermistor (Outdoor Pipe) Thermistor (Discharge) Thermistor (Outdoor2 - Phase Pipe) Thermistor (Outdoor) Thermistor (Heatsink) Reactor 52C Relay Rush Current Protect Resistor Active Filter Module Main Smoothing Capacitor Power Circuit Board
TA
B - S /
T
TA
B-P/P1/P2
TA
B-N/N1/N2
CN2 ~ 5 CNDC CNAF IPM LED1 LI / LO NI / NO EI CNAC1 / 2 CN5 FUSE1 ~ 4 SW1 SW2 SW4
Te
rminal (L
/ N - Phase)
Te
rminal (DC V
oltage)
Te
rminal (DC V
oltage)
Connector Connector Connector Inverter Light Emitting Diodes (Inverter Control Status) Noise Filter Circuit Board Connection Lead (L
- Phase)
Connection Lead (N - Phase) Connection T
erminal
(Ground)
Connector Connector Controller Circuit Board Fuse (6.3A) Switch (Forced Defrost, Error History Record Reset) Switch (Self Diagnosis Switch) Switch (T
est Operation )
Connection
Te
rminal (U / V / W - Phase)
U / V / W
SW5
Switch (Function Switch)
SW6 SW7 SW8 SW9 SW10 CN31 LED CNAC CNDC CNS CNF1 CNF2 SS SV1 SV2 CN3S CNDM CN51 CNIT
Switch (Model Select) Switch (Function Setup) Switch Switch (Function for option) Switch (Function for option) Connector Light Emitting Diodes (Operation Inspection Indicators) Connector Connector Connector Connector Connector Connector (Connection for Option) Connector Connector Connector (Connection for Option) Connector <Connected for Option (Contact Input)> Connector (Connection for Option) Connector (Connection for Option)
N. F
.
C. B.
Power turned on
Details
W
A
RNING: When the main supply is turned of
f, the voltage[340 V]in the main capacitor will drop to 20 V in approx.2 minut
es
(input voltage : 240 V). When servicing, make sure that LED on the outdoor circuit board gose out, and then wait for at
least 1 minute.
Components other than the outdoor board may be faulty : Check and take corrective action, referring to the service manual. Do not replace the outdoor board without checking.
Cautions when Servicing
LED on the controller board display the operation and inspection status as follows. If LED does not light, it indicates that no power is supplied to the board:
Operation / Inspection Display
Normal status Faulty status (blinking)
Code
(blinks)
Operation status display
,
such as C5. H7 F3 F5 F9 E8 E9 EA Eb Ec E0 E7 EE, EF Ed U2 U7 U1 UL U6 UF UH UP U3 U4 U5 U8 U9 PA
63L
connector (red) is open.
63H connector (yellow) is open. 2 connectors (63H/63L) are open. Branch box/outdoor communication error (Signal receiving error) (Outdoor unit) Indoor/branch box communication error (Signal receiving error) (Branch box) Branch box/outdoor communication error (T
ransmitting error) (Outdoor unit)
Indoor/branch box communication error (T
ransmitting error) (Branch box)
Miswiring of indoor-branch box / branch box-outdoor unit connecting wire. Too many indoor units / branch box are in the system. Miswiring of indoor-branch box/branch box-outdoor unit connecting wire (converse wiring or disconnection) Startup time over Communication error except for outdoor unit Combination error
, undefined error
Serial communication error Discharge temperature fault Low-discharge superheating fault, Erroneous connection of refrigerant pipes or the connecting wires High pressure fault (63H operates) Low pressure fault (63L
operates)
Abnormality of power modules Compressor overcurrent shutof
f (Start up locked)
Current sensor fault (P
. B.)
Compressor overcurrent shutof
f fault
Discharge pipe/compressor thermistor (TH4) open or short-circuit Outdoor unit thermistors (TH3,
TH6,
TH7, and
TH8), 63HS, and branch box
thermistors open or short-circuit Heatsink temperature fault Abnormality in outdoor fan motor V
oltage fault, current sensor fault (N. F
.)
Forced compressor stop (Overlap malfunction of drain pump in indoor unit and linear expansion valve in branch box)