8

WIRING DIAGRAM

PCA-A24GA

PCA-A30GA

PCA-A36GA

PCA-A42GA

PCA-A24GA1PCA-A30GA1

PCA-A36GA1

PCA-A42GA1

 

[LEGEND]

 

 

 

 

 

 

 

 

 

 

 

 

SYMBOL

 

NAME

SYMBOL

NAME

 

SYMBOL

NAME

 

 

P.B

INDOOR POWER BOARD

C

CAPACITOR<FAN MOTOR>

 

W.B

WIRELESS REMOTE CONTROLLER BOARD(OPTION)

 

 

I.B

INDOOR CONTROLLER BOARD

MF

FAN MOTOR

 

 

RU

RECEIVING UNIT

 

 

 

FUSE

FUSE (6.3A/250V)

 

MV

VANE MOTOR

 

 

BZ

BUZZER

 

 

 

ZNR

VARISTOR

 

TB4

TERMINAL BLOCK<INDOOR/OUTDOOR

 

 

LED1

LED<RUN INDICATOR >

 

 

 

CN2L

CONNECTOR<LOSSNAY>

 

CONNECTING LINE>

 

 

LED2

LED<HOT ADJUST>

 

 

 

CN32

CONNECTOR<REMOTE SWITCH>

TB5,TB6

TERMINAL BLOCK<REMOTE CONTROLLER

 

 

SW1

SWITCH<HEATING ON/OFF>

 

 

 

CN41

CONNECTOR<HA TERMINAL-A>

 

TRANSMISSION LINE >

 

 

SW2

SWITCH<COOLING ON/OFF>

 

 

 

CN51

CONNECTOR<CENTRALLY CONTROL>

TH1

ROOM TEMP.THERMISTOR

 

 

 

 

 

 

 

 

SW1

SWITCH <MODEL SELECTION>wSee Table 1.

 

<32°F/15kΩ , 77°F/5.2kΩ DETECT>

 

 

 

 

 

 

 

 

SW2

SWITCH <CAPACITY CODE>wSee Table 2.

TH2

PIPE TEMP.THERMISTOR/LIQUID

 

 

 

 

 

 

 

 

SWE

SWITCH<EMERGENCY OPERATION>

 

<32°F/15kΩ , 77°F/5.2kΩ DETECT>

 

 

 

Please set the voltage using the remote

 

 

X1

RELAY<DRAIN PUMP>

TH5

COND./EVA.TEMP.THERMISTOR

 

 

 

controller.

 

 

X4

RELAY<FAN MOTOR>

 

<32°F/15kΩ , 77°F/5.2kΩ DETECT>

 

 

 

For the setting method, please refer to

 

 

BCR

FAN CONTROL ELEMENT

R.B

WIRED REMOTE CONTROLLER BOARD

 

 

 

the indoor unit Installation Manual.

 

 

LED1

POWER SUPPLY<I.B>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LED2

POWER SUPPLY<R.B>

 

 

 

 

 

 

 

 

 

 

LED3

TRANSMISSION<INDOOR-OUTDOOR>

 

 

 

 

 

 

 

 

 

 

 

 

P.B

CNDK

 

CN2S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(RED)

 

(WHT)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

MF

 

 

 

2

DC13.1V

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

YLW

 

TB4

 

 

1 2 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

w1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORN

 

S1

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YLW

S2

TO OUTDOOR UNIT

I.B

 

 

RED WHT

YLW

 

ORN

 

BLK WHT

BRN ORN

 

 

 

 

S3

RED WHT BLK

 

 

 

 

 

 

 

 

ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BRN

 

 

 

1 3 5

D.U.M

1 3

POWER

1 3

POWER

1 3

 

1 2

1 3

VANE

 

 

24/30 TYPE

 

 

 

FAN

 

 

 

6

6

 

 

 

CNP

CNDK

CND

 

CN6V

6

6

MV

 

 

(WHT)

(BLU)

 

(RED)

 

(ORN)

 

FUSE

 

POWER

A-CONTROL (GRN)

 

 

MV

 

 

 

 

 

 

X4

 

 

 

 

 

 

CN2D(WHT) CN3C(BLU)

 

 

 

 

 

 

 

 

BCR

X1

 

 

 

 

 

 

CN41

CN2L

 

 

 

36/42 TYPE

 

 

 

 

 

 

ZNR

 

 

WIRELESS

 

 

5

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN90

 

 

9

 

 

 

 

 

X4

X1

 

 

 

 

 

 

CN51

CN32

(WHT)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LED3 LED2 LED1

 

 

 

 

 

 

 

 

 

 

 

 

 

SW2 SW1

SWE

ON

OFF

Refer to tables 1 and 2 for service PCB.

D.SENSOR

INTAKE LIQUID

PIPE

REMOCON

BZ

CNB

CN31

CN20

CN21

CN29

CN22

 

 

 

(WHT)

(RED)

(WHT)

(BLK)

(BLU)

 

RU

 

1 2 3

1 2

 

1 2

1 2

1 2

 

 

 

 

RECEIVER LED1 LED2 SW2 SW1

 

 

BLK BLK

BLK

BLK

BLU BLU

 

 

W.B

 

 

 

 

 

 

 

 

1 2

1 2

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

1

TRANSMISSION WIRES DC12V

1 2

 

TH1

TH2

TH5

TB5

R.B

TB6

 

 

 

 

 

 

 

 

Table 1

SW1

MODELS

Service board

PCA-A,GA

1

2

3

4

5

 

 

 

 

ON

 

 

 

 

 

OFF

Table 2

SW2

MODELS

 

Service board

MODELS

 

Service board

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCA-A24GA

 

1

2

3

4

5

 

ON

PCA-A36GA

 

1

2

3

4

5

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCA-A30GA

 

1

2

3

4

5

 

ON

PCA-A42GA

 

1

2

3

4

5

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTES:

1.Since the outdoor side electric wiring may change, be sure to check the outdoor unit electric wiring for servicing.

2.Indoor and outdoor connecting wires have polarities, make sure to match terminal numbers (S1, S2, S3) for correct wirings.

3. Symbols used in wiring diagram above are,

: Connector,

: Terminal (block).

4.This diagram shows the wiring of Indoor and Outdoor connecting wires (specification of 230V), adopting superimposed system of power and signal.

w1.Use copper supply wires.

[Emergency operation procedure]

When the wired remote control or the indoor unit microcomputer has failed, but all other components work properly, if you set the switch (SWE) on the indoor control board ON, the indoor unit will begin Emergency Operation.

When Emergency Operation is activated, indoor fan runs at high speed.

12

Page 12
Image 12
Mitsubishi Electronics PCA-A24GA service manual Wiring Diagram, Indoor unit Installation Manual

PCA-A24GA specifications

Mitsubishi Electronics has long been a pioneer in the field of industrial automation, and the PCA-A24GA is a notable addition to its line of high-performance programmable controllers. This compact yet powerful device is designed to optimize processes and increase efficiency across various applications, making it a preferred choice for industries ranging from manufacturing to building automation.

One of the standout features of the PCA-A24GA is its versatility. The controller offers a wide range of input/output (I/O) options, enabling seamless integration with various sensors and actuators. With 24 digital input channels and 16 relay output channels, the PCA-A24GA can handle complex control tasks while maintaining a compact footprint. This flexibility is further enhanced by its support for analog inputs and outputs, allowing for greater precision in monitoring and controlling processes.

The PCA-A24GA is built with cutting-edge technologies that ensure robust performance. It employs Mitsubishi's advanced processing algorithms, which enhance real-time data processing capabilities. This ensures responsive control, reducing lag and improving overall system performance. Additionally, the controller features an intuitive programming environment, making it accessible to both seasoned engineers and those new to automation programming.

Communications are another strong suit of the PCA-A24GA. It offers multiple communication protocols, including Ethernet and RS-232, which allow for easy connectivity to various devices and systems. This ensures that the PCA-A24GA can be integrated into existing networks without significant modifications, facilitating smoother transitions and upgrades.

In terms of reliability and durability, the PCA-A24GA excels. Designed to operate in demanding environments, it is built to withstand temperature fluctuations, vibrations, and dust, which is essential for industrial settings. The controller's long operational life reduces maintenance costs and downtime, contributing to improved productivity.

Energy efficiency is also a key characteristic of the PCA-A24GA. Mitsubishi Electronics has designed this controller with eco-friendly technologies, making it suitable for organizations looking to reduce their carbon footprint while maintaining high levels of productivity.

In summary, the Mitsubishi Electronics PCA-A24GA stands out with its versatile I/O options, advanced processing capabilities, comprehensive communication protocols, and robust build. These features make it an excellent choice for industries seeking reliable and efficient automation solutions, securing Mitsubishi's reputation as a leader in the field.