Wiring Diagram - Mitsubishi Electric PKA-A12HA Service Manual

7

WIRING DIAGRAM

PKA-A12HA PKA-A18HA PKA-A12HAL
[Explanation of symbols]
Symbol Name
I.B Indoor controller board
CN2L Connector (LOSSNAY)
CN30 Connector (LLC)
CN32 Connector ( Remote switch)
CN41 Connector (HA terminal-A)
CN51 Connector (Centrally control)
CN90 Connector (Remote operation adapter)
CN152 Connector (Back-up heating)
DSA Surge absorber
FUSE FUSE(T3.15AL250V)
LED1 Power supply (I.B)
LED2 Power supply (R.B)
LED3 Transmission (Indoor-outdoor)
SW1 Switch (Model selection) See table 1
SW2 Switch (Capacity code) See table 2
SWE Connector (Emergency operation)
ZNR01,02 Varistor
R.B
Wired remote controller
TB6 Terminal block (Remote controller transmission line)
I.B
T11
SWE
ON
OFF
1
CN90
(WHT)
Refer to
1 2 1
CN2L CN41
tables
(RED) (WHT)
1and 2
1 10
CN152
(WHT)
CN151 CN20 CN44
(WHT) (RED) (WHT)
1 5 1 2 1
M
t t t
○ ○ ○
TH1 TH2 TH5
Notes:
1.SymboIs used in wiring diagram above are,
2.Indoor and outdoor connecting wires have poIarities, make sure to match terminal
numbers (S1, S2, S3)for correct wirings.
3.Since the outdoor side electric wiring may change, be sure to check the outdoor unit
electric wiring diagram for servicing.
4.This diagram shows the wiring of indoor and outdoor connecting wires.(specification of
230V), adopting superimposed system for power and signal.
1: If indoor and outdoor units have separate power supplies, refer to Fig 1.
2: For power supply system of this unit, refer to the caution label located near this diagram.
3: Use copper supply wires.
Symbol
M Vane motor
MS Fan motor
S.W Switch board
SWE2 Emergency operation
TB2 Terminal block(Indoor unit Power (option))
TB4 Terminal block (Indoor/outdoor connecting line)
TB5 Terminal block (Remote controller transmission line)
TH1 Room temp. Thermistor
(32°F/15ΚΩ, 77°F/5.4ΚΩ Detect)
TH2 Pipe temp. Thermistor/liquid
(32°F/15ΚΩ, 77°F/5.4ΚΩ Detect)
TH5 Cond./eva. temp. Thermistor
(32°F/15ΚΩ, 77°F/5.4ΚΩ Detect)
W.B Pcb for wireless remote controller
LED1 LED (Operation indication: Green)
LED2 LED (Preparation for heating: Orange)
REC1 Receiving unit
MS
3~
CNMF
1 6
(WHT)
DB1 FUSE
1
3
ZNR01
5
U
CN01
ZNR02
(BLK)
LED1
U
LED3 DSA
3
LED2
X1 1
CNP(BLU)
3
CN3C
9 1 3
CN32
(BLU)
1
(WHT)
LDSWE(A)
(BLU)
4 1 5
CN51
(WHT) CNRU
(WHT)
1 3
CN30
(BLK)
CN4F
1
CN22
(WHT)
(BLU)
2
4 1 4
: Connector,
PKA-A18HAL
Name
<Table 1>
SW1
(MODEL SELECTION)
TB4 < 3>
YLW YLW
TO
S1
ORN ORN
OUTDOOR
S2
UNIT
S3
BLK
<Table 2>
SW2(CAPACITY CODE)
MODELS
S.W
ORN
2
BRN
LDSWE(B) SWE2
W.B
6
RU
LD101(B) REC1
BLU
BLU
LED1 LED2
TB5
For PKA-A.HA
1(Fig. 1)
CN01
I.B
(BLK)
YLW
1
ORN
3
5
: Terminal (block).
I.B
1 3
CN3C(BLU)
10
SETTING
1 2 3 4 5
ON
OFF
SETTING
1 2 3 4 5
A12
ON
OFF
1 2 3 4 5
ON
A18
OFF
R.B
1 1
2
2
TB6
TB2
RED
L1
BLU
POWER SUPPLY
L2
208/230V 60Hz
GRN/YLW
GR
TB4
YLW
ORN S1
ORN
S2
TO OUTDOOR
BRN
UNIT
S3
INDOOR/OUTDOOR
COMMUNICATION