Wiring Diagram - Mitsubishi Electric Mr.SLIM PKA-A12HA4 Service Manual

7

WIRING DIAGRAM

PKA-A12HA4 PKA-A18HA4
[LEGEND]
Symbol
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)
CN105 Connector (Radio frequency interface)
CN152 Connector (Back-up heating)
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)
RFI Radio frequency interface for RF thermostat
I.B
SWE
ON
OFF
1
CN90
(WHT)
Refer to
1 2 1
CN2L CN41
tables
(RED) (WHT)
1and 2
1
CN152
(WHT)
CN151 CN20 CN44
(WHT) (RED) (WHT)
1 5 1 2 1
M
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 of power and signal.
1 : Use copper supply wires.
Name
MS
3~
1
CNMF 6
(WHT)
FUSE
DB1
CN01
(BLK)
LED1
3
LED3
X1 1
LED2
CNP(BLU)
3
CN3C
(BLU)
1
9 1 3
CN32
(WHT)
LDSWE (A)
(BLU)
4 1 5
CN51
(WHT)
CNRU
(WHT)
10 1 3
CN30
(BLK)
CN22
CN4F CN105
(BLU)
(WHT) (RED)
4 1 4 1 5 1
2
5
RFI
t°
: Connector,
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 IR wireless remote controller
LED1 LED (Operation indication : Green)
LED2 LED (Preparation for heating : Orange)
REC1 Receiving unit
OPTION PART
Wired remote controller board
R.B
Terminal block (Remote controller transmission line)
TB6
< 1>
TB4
1
YLW YLW
TO
S1
3 ORN ORN
OUTDOOR
S2
5
UNIT
S3
BLK
ORN
BRN
S.W
2
LDSWE (B) SWE2
W.B
6
RU
LD101 (B) REC1
LED1 LED2
R.B
TB5
2
1
2
: Terminal (block).
10
Name
<Table 1>
SW1
(MODEL SELECTION)
SETTING
1 2 3 4 5
ON
OFF
<Table 2>
SW2(CAPACITY CODE)
MODELS SETTING
1 2 3 4 5
PKA-
A12HA4
1 2 3 4 5
PKA-
A18HA4
■
The black square ( ) indicates
a switch position.
1
2
TB6
ON
OFF
ON
OFF