LG PQCPA11A0E User guide

LG

ACP

Advanced Control Platform

(PQCPA11A0E, PQCPB11A0E)

Installation/Owner's Manual

Caution

•Read this manual thoroughly before installing the product.

•Only the certified professional should install this product.

•Keep this manual for referring during the operation later.

Advanced Control Platform

Contents

1. ACP FUNCTIONS & SPECIFICATION	.............1-1
Functions of ACP............................................................................................................	1-1
Denomination of ACP .....................................................................................................	1-4
Components of ACP .......................................................................................................	1-6
Hardware specification of ACP......................................................................................	1-7

			2.							INSTALLING								ACP		.............................................																																														2	-	1
			Before installing the ACP...............................................................................................																																								2-2
			• Using the single ACP as web server ........................................................................																																								2-3
			• Connecting the single ACP to the AC Manager ......................................................																																								2-5
			• Connecting more than on ACPs to the AC Manager ..............................................																																								2-7
			Setting the indoor unit address.....................................................................................																																								2-8
			• Setting the address by the wired remote controller ...............................................																																								2-9
			• Setting the address by the wireless remote controller.........................................																																								2-10
			Setting the PI485 and Connecting the cable .............................................................																																								2-12
			• Setting the PI485 DIP switch ...................................................................................																																								2-12
			• Connecting the 2PIN connector..............................................................................																																								2-14
			• Connceting RS485 cable to PI485...........................................................................																																								2-16
			Installing the ACP and Connecting the cable.............................................................																																								2-19
			• Fixing the ACP at the installation site ....................................................................																																								2-19
			• Connecting RS485 cable to ACP ............................................................................																																								2-20
			• Connecting Ethernet cable to ACP.........................................................................																																								2-23
			• Connecting Power adaptor to ACP.........................................................................																																								2-24
			Configuring the ACP network......................................................................................																																								2-25
			• Before configuring the ACP environment..............................................................																																								2-25
			• Setting the IP address..............................................................................................																																								2-29
			• Setting the gateway address...................................................................................																																								2-30
			• Setting the net mask address .................................................................................																																								2-31
			• Checking the network environment .......................................................................																																								2-32

2 ACP

Setting the functions of the ACP.................................................................................	2-33
• Before setting the functions of the ACP ................................................................	2-33
• Selecting Peak or Demand ......................................................................................	2-34
• Selecting the ACCS display language....................................................................	2-36
• Setting whether to use the schedule function or not ...........................................	2-38
• Setting whether to use the wattage display function or not ................................	2-40
• Setting error history display ..................................................................................	2-42
Configuring the ACCS access .....................................................................................	2-43
• Chceking the MS JAVA VM installation .................................................................	2-43
• Checking the MS Explorer security setting ...........................................................	2-45
Entering the indoor unit & ventilator information......................................................	2-49
• If the ACP is connected to the AC Manager ..........................................................	2-49
• If the ACP is not connected to the AC Manager....................................................	2-50
Making sure and checking the ACP installation ........................................................	2-67

			3.			ACP							OPERATION						BY					USING					THE			LG				ACCS			.............														3	-	1
			Accessing the ACCS.......................................................................................................																																														3-1
			Reviewing the initial ACCS screen................................................................................																																														3-4
			Controlling the air conditioner.......................................................................................																																														3-7
			Controlling the ventilator .............................................................................................																																														3-14
			Setting the schedule.....................................................................................................																																														3-21
			• Reviewing the schedule setup screen ...................................................................																																														3-21
			• Example for setting the schedule ...........................................................................																																														3-32
			Controlling the peak operation rate ............................................................................																																														3-44
			Controlling the demand electric power.......................................................................																																														3-51
			Monitoring the air conditioner status..........................................................................																																														3-56
			Reviewing the error history..........................................................................................																																														3-58
			Reviewing the power consumption (interconnecting with the power display).......																																														3-61
			Setting the system ........................................................................................................																																														3-66

4. REFERENCE ....................................................	4-1
Troubleshooting..............................................................................................................	4-1
Guide for the open source software..............................................................................	4-2
UTP cable connection chart...........................................................................................	4-3

Installation/Owner's Manual

3

Note for safety

Note for safety

In order to prevent the user's injury or the damage of the product, keep the followings to use the product.

■The service center or the professional installation agency cettified by our company should perform the installation because the professional technique is required to install.

■The installer should be responsible for all problems related the installation occurred by the installation work without the installation certification, for which our company does not offer the free-of-charge service.

■Using the product ignoring the note for safety may cause the misoperation of the product, which may cause the body's injury or the damage of the product. The note for safety is classified into two following items:

WARNING For causing the critical injury to the body.

CAUTION For the body's injury or the damage of the product.

■ The symbols used at this manual have the following meanings:

It should not be followed.

It should be carefully kept to perform.

4 ACP

Note for safety

WARNING

■ When installing

Any question about the product should be asked to the service center or the professional installation agency.

•The non-professional may cause accident, electric shock, explosion or injury.

Consult the service center or the professional installation agency about reinstalling the installed product

•The non-professional may cause electric shock, explosion or injury.

The standardized part.

•The non-standard part may cause electric shock, explosion, injury or failure.

Do not disassemble, repair or modify the product at random.

•It may cause electric shock or fire.

Wax

Thinner

Installation/Owner's Manual

5

Note for safety

Do not install the product at the wet place.

• It may cause to degrade the insulating ability and may cause fire.

■ When using

Do not change or extend the	Do not place any heating
power cord.	device near the product.
• It may cause fire or	• It may cause fire.
electric shock.

Do not let water flow into the	Do not put heavy weight on
product.	the power cord.

Do not use any heating device near the power cord.

•It may cause fire or electric shock.

Do not put heavy weight on the product.

•It may cause electric shock and failure.

•It may cause fire or electric shock.

•It may cause the failure of the product.

6 ACP

Note for safety

If the product is flooded, consult the service centre or the professional installation agency.

•It may cause fire or electric shock.

Let the children or the old and the weak be controlled by the guardian to use.

•It may cause accident or failure.

Do not give any shock to the product.

•Any shock to the product may cause failure.

■ When using

Do not use strong detergent such as solvent, but a soft cloth.

Grab the head of the plug of the power cord to pull when disconnecting the plug, and do not touch the plug with wet hands.

• It may cause fire or to deform the product.

• It may cause fire or electric shock.

Wax

Thinner

Installation/Owner's Manual

7

1.ACP Functions & Specification

1.ACP Functions & Specification

The ACP(Advanced Control Platform) is the central controller which can control up to 256 indoor units of the airconditioner at one place individually or totally. The ACP can monitor or control to operate the airconditioner and the ventilator installed at each room of the building from the place such as the control room of a building, the administrative room of a school.

Functions of ACP

Main functions of the ACP are as follows:

Using the external button of the ACP to set the environment

The following functions can be set by using the external buttons of the ACP.

•Set the network environment (IP address, net mask, gateway)

•Set one of Peak/Demand function to use

•Set the language displayed on the LG ACCS screen

•Set whether to use the schedule feature or not

•Set whether to use the watthour meter feature or not.

1-1 ACP

1. ACP Functions & Specification

Built-in Web server

Various functions of contents can be used when the IP address of the ACP is entered at the address window by using the Internet Explorer without installing a separate PC program to automatically execute the central control program at the ACP web server.

Also, the demand control feature to control the demand power is controlled by directly connecting the ACP to the demand controller without installing a separate PC program.

Internet

Explorer

				LG-NET 1	TX
					RX
				LG-NET 2	TX
	1	DI			RX
	2			LG-NET 3	TX
	3				RX
	4			LG-NET 4	TX
	5				RX
	6
	7				TX
	8			FDD
	9				RX
	10			Ext.	TX
Internet	11				RX
	12
	13
	2019
	14			Ethernet 1	ACT
	15				LNK
	16		MENU/
	17				ACT
	18		SELECT	Ethernet 2	LNK
				Console	TX
					RX
	1	DO		Run
	2
	3
	4			Power

ACP

Control 256 indoor units of the airconditioner at maximum

Monitoring the error and operation state

Controlling the peak/demand electric power

Setting the system

Interconnecting with the AC Manager

Various features offered by the AC Manager are offered by connecting the AC Manager program installed at the PC to the ACP. Especially, when using the schedule feature of the AC Manager, because the ACP has its own engine, even though the user turns off the PC where the AC Manager is installed, the ACP can perform the schedule featre by itself.

HUB

			LG-NET 1	TX
				RX
			LG-NET 2	TX
1	DI			RX
2			LG-NET 3	TX
3				RX
4			LG-NET 4	TX
5				RX
6
7				TX
8			FDD
9				RX
10			Ext.	TX
11				RX
12
13
14			Ethernet 1	ACT
15				LNK
16		MENU/
17				ACT
18		SELECT	Ethernet 2	LNK
19
20
			Console	TX
				RX
1	DO		Run
2
3
4			Power

AC Manager	ACP

Installation/Owner's Manual

1-2

1. ACP Functions & Specification

Interconnecting with the simple central controller

The 16-room simple central controller can be interconnected with the ACP. When the ACP centrally controlling all airconditioners and the simple central controller at each floor of the building are used together, the airconditioner can be controlled more easily.

DI

Multi V	00

DO

	ACP	PI485
		Multi V

Central control (0.0)	(0.1)	(0.F)
address

Central control (0.0)	(0.1)	(0.F)
address

Simple central controller

PI485

1-3 ACP

1. ACP Functions & Specification

Denomination of ACP

10

11

	1	DI
	2
	3
	4
	5
	6
	7
	8
	9
	10
	11
	12
	13
	14
	15
	16
	17
	18
	19
	20

		LG-NET 1	TX
			RX
		LG-NET 2	TX
			RX
		LG-NET 3	TX
			RX
	1
		LG-NET 4	TX
			RX
		FDD	TX
			RX
		Ext.	TX
			RX
		Ethernet 1	ACT
			LNK
MENU/		Ethernet 2	ACT
SELECT
			LNK

Console

TX

RX

	1	DO	Run
	2

	3
4	Power

2

3

4

5

6

7

8 9

1 Buttons and LCD

Buttons and the LCD to display the network environment setting and other information

2 RS485 communication port (for PI485 connection)

RS485 communication port connecting to the PI485 to connect the airconditioner and the ventilator (4EA in total)

3RS485 communication port (for external extension)

RS485 communication port spar for exter extension (2EA in total)

4Ethernet port (for connecting the Internet and the AC Manager)

The Ethernet port for connecting the Internet and the AC Manager

5 Ethernet port (spare)

Ethernet port spare for the function extension of the ACP

6 RS232 port

RS232 port for updating the software of the ACP

Installation/Owner's Manual

1-4

1. ACP Functions & Specification

7 Reset switch

Switch for resetting the ACP by the software

8 Power switch

Switch for turning on/off the ACP

9 Adaptor connection port

Port for DC 12V to connect the adaptor supplying the power

10 External input signal terminal

Port for connecting the external input signal (20EA in total). Input terminal not requiring the power.

11 External output signal terminal

Connection port spare for the function extension of the ACP (4EA in total)

Note: External input/output signal terminal

9 external input signal terminal and 10 external output signal terminal are configured at the PQCPB11A0E only. These terminals are used to connect the AC Manager to set the fire control function. These terminal are used to set the indoor unit to operate or stop for responding High or Low signal of each external input signal.

In case of PQCPA11A0E model, a separate IO Kit (Model: PQCPE11A0E) can be purchased and installed to use for connecting the external signal.

1. ACP Functions & Specification

Components of ACP

The following components are contained within the packaging box of the ACP. Open the packaging box of the ACP to make sure that all components are contained.

237mm

180mm

			LG-NET 1	TX
				RX
			LG-NET 2	TX
1	DI			RX
2			LG-NET 3	TX
3				RX
4			LG-NET 4	TX
5				RX
6
7				TX
8			FDD
9				RX
10			Ext.	TX
11				RX
12
13
14			Ethernet 1	ACT
15				LNK
16		MENU/
17			Ethernet 2	ACT
18		SELECT		LNK
19
20
			Console	TX
				RX
1	DO		Run
2
3			Power
4

	<![if ! IE]> <![endif]>250mm		<![if ! IE]> <![endif]>273mm

LG

		57mm
ACP				ACP
(Advanced Control Platform)				Installation/Owner's Manual

Adaptor for Power supply	Power Cord
Input: 100~240V	International Standard
AC 50/60Hz 1.5A	IEC320 C14 Type
Output: DC 12V
3.33A, 40W MAX

Caution: Using the standardized part

We are not responsible for any problem caused by using the adaptor other than the standardized one offered by us, so using any non-standard part should be prohibited. You can consult the LG System Air Conditioner Support Division about the applicable product.

Notice : In Australia, purchase the power code

In Australia, the power code from local area.

The power code is not included in the package

Installation/Owner's Manual

1-6

1. ACP Functions & Specification

Hardware Specification of ACP

	Item	Description
	CPU	PXA255-400MHz Xscale
	RAM	128MB (32x4) SDRAM
	ROM	• 512KB NOR Flash – Boot image
		• 128MB (64x2) NAND Flash – Program image, Database, others
	RS-232 Console	For updating the program (for developing)
		• RS485 port: PI485 communication port 4EA, External device
		connection port 2EA
	Communication port	• RS-232 communication port: Port for updating the program 1EA
		• Ethernet port: for Internet connectioin 1EA (10Base-T) Spare 1EA
		For the PQCPB11A0E model, the following ports are supplied as default.
		• External input port: 20EA (Pulse contable, DC 12V)
		• External output port: 4EA (Relay output, 5V)
		For the PQCPA11A0E model, the IO Kit (PQCPE11A0E) should be
		separately purchased for connecting the above port
	LED	20EA (for displaying RS communication status, Ethernet communication
		status, RS232 communication status, Power operation status)
	LCD	16x2 Character, displaying Network environment setting and information

Note: License policy

This product follows the GPL(General Public License) for using the embedded Linux.

1-7 ACP

2. Installing ACP

2. Installing ACP

This chapter describes how to install the ACP to use.

Caution: Installing the ACP

The ACP installation work needs the professional technique. Therefore, the installation described at this chapter should be performed by the certified installation professional.

Consult the service center or the professional installation agency certified by us about any question or request related to the installation.

In order to use the ACP, the environment for the ACP, the indoor unit and the ventilator to communicate should be built and the indoor unit should be registered.

In order to use the ACP, the installation should be performed by the following order.

STEP 1. Check the environment before installing the ACP

Before installing the ACP, check the network configuration according to the interconnection between the ACP and the external device.

STEP 2. Set the indoor unit address and Connecting the PI485

Set the address of the ACP not overlapped with the connecting indoor unit and connect the PI485.

STEP 3. Install the ACP and set the environment and the function

Install the ACP and set the network environment and the function.

STEP 4. ACCS access and Information input

Set the access environment at the LG ACCS, the ACP operation program and enter the air conditioner information.

STEP 5. Make sure and check the ACP installation

Make sure and check that the ACP is normally installed.

Installation/Owner's Manual

2-1

2. Installing ACP

Before installing the ACP

ACP provides 4 RS485 ports to connect the indoor unit. Maximum of 16 units can be connected to PI485 for outdoor unit in 1 RS385 port, and maximum of 31 units for SINGLE/Ventilator PI485.

256 indoor units at maximum can be connected to one ACP. All of 256 indoor units may be connected to one RS485 port, which is the maximum number of units for the ACP to connect. But, in order to improve the communication performce of the RS485, we recommend to distribute them to four ports.

Note: Change the number of connections of RS485

If it is inevitable to change the above specification, call the system air conditioner support division

By considering three following cases using the ACP, perform the installation after carefully considering how to use.

•Install the single ACP to use as web server

•Connect the single ACP to the AC Manager to use

•Connect more than one ACP to the AC Manager via the hub to use

2-2 ACP

2. Installing ACP

UsingthesingleACPaswebserver

When one ACP is used as web server, the ACP should be connected with the network structure as shown at the following examples.

Using the hub

If it is connected via the hub, the network can be configured as shown at the following example.

LAN

(Direct Cable)

DI

DO

ACP

Simple central controller (possible to connect when necessary)

Hub

Multi V

						00			01		02

PI485

Multi V

						10	11			12

PI485

Multi V

20									21		22

PI485	30
Multi	31
	32
	33
PI485

Installation/Owner's Manual

2-3

2. Installing ACP

Not using the hub

If it is connected without the hub, the network can be configured as shown at the following example.

DI

DO

ACP

Simple central controller (possible to connect when necessary)

Multi V

						00			01		02

PI485

Multi V

						10	11			12

PI485

Multi V

20									21		22

PI485

30

31

Multi

32

33

PI485

2-4 ACP

2. Installing ACP

ConnectingthesingleACPtotheACManager

When one ACP is connected to the AC Manager without the hub, the ACP should be connected with the network structure as shown at the following examples.

Using the hub

If it is connected via the hub, the network can be configured as shown at the following example.

AC Manager

LAN

(Direct Cable)

DI

DO

ACP

Simple central controller (possible to connect when necessary)

Hub

Multi V

						00			01		02

PI485

Multi V

						10	11			12

PI485

Multi V

20									21		22

PI485	30
Multi	31
	32
	33
PI485

Installation/Owner's Manual

2-5

2. Installing ACP

Not using the hub

If it is connected without the hub, the network can be configured as shown at the following example.

AC Manager

LAN

Cross cable

DI

DO

ACP

Simple central controller (possible to connect when necessary)

Multi V

						00			01		02

PI485

Multi V

						10	11			12

PI485

Multi V

20									21		22

PI485	30
Multi	31
	32
	33
PI485

2-6 ACP

2. Installing ACP

ConnectingmorethanonACPstotheACManager

When more than one ACP are connected to the AC Manager via the hub, the ACP should be connected with the network structure as shown at the following examples.

	LAN	Hub
	Direct cable

Multi V

ACP

PI485

Multi V

	PI485
Simple central controller
(possible to connect
when necessary)	Multi V
	PI485
ACP
	Multi
Simple central controller	PI485
(possible to connect
when necessary)

AC Manager

00

01

02

10

11

12

20

21

22

30

31

32

Installation/Owner's Manual

2-7

2. Installing ACP

Setting the indoor unit address

By considering the entire installation configuration connecting to one ACP, set the address to each indoor unit not to be overlapped. 00~FF in hexadecimal can be set to the indoor unit address.

The following example sets the address to the indoor unit.

DI

DO

Multi V

00

01

02

PI485
Multi	10	11	12
ACP

Ventilator

30

PI485

Ventilator

31

PI485

When the ACP is interconnected with the AC Manager, the ventilator can be together installed and controlled. The above figure shows the example that sets 30 and 31 to the ventilators as address and connects to the ACP.

Caution: Connecting the ventilator to the RS485

The ventilator and the air conditioner can not be connected together to the same RS485 communication cable. When connecting the ventilator to the RS485 communication cable, the cable other than the RS485 communication cable connecting the air conditioner should be used.

The next section describes how to set the address to each indoor unit by using the wired or wireless remote controller according to the given number.

2-8 ACP

2. Installing ACP

Setting address with wired remotecontroller

Program

AUTO SWING

OPERATION

SET TEMP

FAN SPEED

SUB FUNCTION

Room Temp

HI

AUTO

Heater

Preheat

MED

JET

Defrost

Humidify

LO

Filter

Out door

Time

Timer

Operation unit

Program set

On Off

Set no. Time

01

03 05 07

09 11 13

15

17 19

21

23

Timer Cancel

Program Week Holiday

Plasma

Set/Clr

Hour

Min

RESET

Set/Ctl

1.Press Week Program & Set/Clr keys at the same time.

2.Set the indoor unit address using the temperature controller. Allowed Range : 00-FF

EX) 3 A

Group No. Indoor Unit No.

3.Complete the address setting to press the week Program & Set/Clr keys at the same time for 3 seconds.

Some remote controllers may not be suported by above functions, a coording to the production date of wired/wireless remote conrollers. As it has no concem with customers' use, use the remote controller available for the address setting during installation.

Installation/Owner's Manual

2-9

2. Installing ACP

Setting address with wirelessremotecontroller

ON OFF

SET CANCEL

PLASMA

Temperature

adjustment

Group No.

Indoor unit No.

Reference: Address display time and method

The address display time and method may differ by the type of the indoor unit.

Reference: Type of remote controller

When using a different type of remote controller from the one described above, refer to the user manual of the applicable remote controller.

2-10 ACP

2. Installing ACP

Information: Checking the set address

ON OFF

SET CANCEL

PLASMA

You can check the set address by using the wireless remote controller. To check the set address, proceed as follows.

1. With the [Wind Up/Down] button pressed,

press the [RESET] button. The [Wind Up/Down] button must be pressed for more than 3 seconds.

2. Press the [Operate/Stop] button once toward

the indoor unit. The set address will be shown on the display part of the indoor unit. The address display time and method can differ by the type of indoor unit.

3. Reset the remote controller again to use it in

general operation mode.

Installation/Owner's Manual 2-11

2. Installing ACP

Setting the PI485 and Connecting the cable

After setting the address of the indoor unit, install the PI485 and set the DIP switch. And then, connect the RS485 cable for communicating with the ACP.

Note: Installing the PI485

Installing the PI485 deponds on the outdoor unit. So, install the PI485 by referring to the PI485 manual or the installation technique information.

SettingthePI485DIPswitch

After installing the PI485 suitable to the product, the DIP switch should be set. The DIP switch of the PI485 can be checked at the following place.

O N K S D O 4 H

<![if ! IE]> <![endif]>L1	<![if ! IE]> <![endif]>ON
<![if ! IE]> <![endif]>4 3 2	<![if ! IE]> <![endif]>KSDO4H

Dip switch

Setting

Product type

1, 4 ON

- Multi V product(CRUN, LRA product excluded)

O N

K S D O 4 H

2, 3 OFF

- MPS product with the common PCB applied

- MPS inverter product

2, 4 ON

O N K S D O 4 H

- MPS product with the common PCB not applied

1, 3 OFF

O N

K S D O 4 H

1, 2, 3, 4 ON

- Multi V CRUN, LRA product

- Single indoor unit (connected to the PI485 for the

O N

K S D O 4 H

3, 4 ON

indoor unit)

- Ventilator (connected to the PI485 for ventilating)

2-12 ACP

2. Installing ACP

Note: PCB part number

The MPS product with the common PCB applied has the following PCB part number:

•PCB P/NO. : 6871A20910A ~ Z

•PCB P/NO. : 6871A20917A ~ Z

•PCB P/NO. : 6871A20918A ~ Z

Caution: Setting the PI485 DIP switch

If the air conditioner selection switch is incorrectly set, the air conditioner may incorrectly operate.

For more information about installing the PI485, see the PI485(M) manual.

Tip: Checking the PI485 DIP switch setting

It can be checked whether the indoor unit address and the DIP switch of the PI485 are correctly set as follows:

•The LED01G blinks as many as the number of the connected indoor units.

•The LED02G and the LED03G continue to blink alternately. (When the LRA/CRUN is connected, the LED02G may blink more than the LED03G.)

<![if ! IE]> <![endif]>L1	<![if ! IE]> <![endif]>ON
<![if ! IE]> <![endif]>4 3 2	<![if ! IE]> <![endif]>KSDO4H

	LED03G
<![if ! IE]> <![endif]>O	LED02G
<![if ! IE]> <![endif]>N
<![if ! IE]> <![endif]>S K	LED01G
<![if ! IE]> <![endif]>D
<![if ! IE]> <![endif]>4 O
<![if ! IE]> <![endif]>H

If the LED is abnormally different from the above description, check again the indoor unit address setting and the DIP switch setting.

Installation/Owner's Manual 2-13

2. Installing ACP

Connectingthe2PINconnector

If you want to use the individual lock function for setting mode, wind flow, and temperature lock by the central control, the 2PIN connector should be connected to the CN_DRY terminal of the PI485 according to the product type.

<![if ! IE]> <![endif]>L1	<![if ! IE]> <![endif]>ON
<![if ! IE]> <![endif]>4 3 2	<![if ! IE]> <![endif]>KSDO4H

2-14 ACP

2. Installing ACP

The following figure shows the example of the central control for connecting the 2PIN connector to the CN_DRY terminal.

1)'Heating operation, 20°C , Strong wind, Temperature lock' function is ordered by the central control such as ACP or AC Manager, which is transferred to the remote controller.

2)If the user changes the temperature to 25°C by the remote controller, the related command is transferred to the outdoor unit and the remote controller displays the 25°C setting.

3)The outdoor unit receives the related command and transferrs it to the PI485.

4)The PI485 cancels this command and transferrs the previous central control command again. And, the remote controller displays again the 20°C temperature transferred by the central control command.

Multi V

ACP

1) Set ‘Heating, 20°C, Strong wind, Temperature lock’ 2) Change temperature to 25°C

3) Heating, 25°C, Strong wind

4) Heating, 20°C, Strong wind 5) Heating, 20°C, Strong wind

6) Return to Heating, 20°C, Strong wind

On the other hand, let's see an example of connecting the 2PIN connector to CN_DRY terminal. When a command is given for function of "Heat operation, 20°C setting, high fan level, temperature lock" through the central control, the applicable command is transmitted through the remote controller. "HL (Hard Lock)" message showing the central control status is displayed on the remote controller. If the user sets the temperature to 25°C, the command is blocked at the remote controller.

Multi V

Set ‘Heating, 20°C, Strong wind, Temperature lock’

The remote controller displays ‘HL’ message

It is not possible for the user to operate.

Installation/Owner's Manual 2-15

2. Installing ACP

ConncetingRS485cabletoPI485

In order to connect the PI485 and the ACP, two RS485 cables should be connected to the BUS_A and the BUS_B of the PI485. Connect the RS485 cables by referring to the following figure.

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When connecting more than one PI485 to one ACP, connect the BUS_A/BUS_B of the PI485 to the BUS_A/BUS_B of the other PI485 respectively.

2-16 ACP