Mitsumi electronic Test Point Diagram, PKA-A12HA4 PKA-A18HA4, Indoor controller board

9-7. TEST POINT DIAGRAM

Indoor controller board

PKA-A12HA4 PKA-A18HA4

CN105

RFI

(Radio frequency interface)

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 IR wireless remote controller

CN152
Connector
(Back-up heating)	CN20

Room temp. thermistor (TH1)

CN44

Pipe temperature thermistor 1-2 : Liquid (TH2)

3-4 : Condenser/Evaporator (TH5)

SWE2

Emergency operation switch

CN2L	CN41
Connector	Connector
(LOSSNAY)	(HA terminal-A)

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)

CN30

Connector (LLC)

CN32

Remote switch

CN90

Connect to the remote operation adapter

CN51

Centrally control

1-2 : Control signal

13VDC pulse input (1: +)

3-4 : Operation indicator 13VDC (3: +)

3-5 : Malfunction indicator 13VDC (3: +)

IR wireless remote controller board

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