Mitsubishi Electric PKA-A12HA Service Manual page 25

9-7. TEST POINT DIAGRAM
Indoor controller board
PKA-A12HA
PKA-A12HAL
SWE
Emergency
operation connector
SW1
Model selection
SW2
Capacity setting
CN151
Connect to the
vane motor (MV)
Jumper wire J41,J42
Pair No. setting for
wireless remote controller
CN152
Connector
(Back-up heating)
CN44
Pipe temperature thermistor
1-2 : Liquid (TH2)
3-4 : Condenser/Evaporator
(TH5)
PKA-A18HA
PKA-A18HAL
CN20 CN2L
Room temp.
Connector
thermistor (TH1)
(LOSSNAY)
SWE2
Emergency
operation switch
CN41
Connector
(HA terminal-A)
Wireless remote controller board
25
CNMF
Connect to the
fan motor (MF)
1-3 : DC294~325V
4-3 : DC15V
5-3 : DC0~6.5V
6-3 : DC0 or DC15V
CN01
Connect to the
Terminal block (TB4)
1-3 : 208/230VAC
FUSE
(3.15A 250V)
LED1:Power supply (I.B)
{
LED2:Power supply (R.B)
LED3:Transmission
(Indoor/outdodr)
CN3C
Transmission
(Indoor/outdodr)
(DC 0~24V)
CN22
Connect to the terminal
block (TB5) (Remote
controller connecting
wire) (only PKA-A·HA)
CN30
Connector (LLC)
CN32
Remote switch
CN90
Connect to the remote
operation adapter
CN51
Centrally control