LG PWFCKN000 Manuale utente

P/NO : MFL42540230

www.lg.com

INSTALLATION MANUAL

• Please read this installation manual completely before installing the product.

• Installation work must be performed in accordance with the national wiring

standards by authorized personnel only.

• Please retain this installation manual for future reference after reading it

thoroughly.

MODEL : PWFCKN000

Variable Water Flow Control Kit

Variable Water Flow Control Kit Installation manual

TABLE OF CONTENTS

nSafety Precautions................................................................................3

nAccessory Parts ....................................................................................5

nName of each Part ................................................................................6

nVariable Water Flow Control kit – Functions summary .........................7

nInstallation Method................................................................................8

Variable Water Flow Control kit Installation Method .............................8

nSetting and Using Method ..................................................................11

1. Wiring Diagram ..............................................................................11

2. Wiring for Variable Water Flow Control kit......................................12

3. Series Installation(more than 2 unit)...............................................13

4. Power Source Input .......................................................................14

Variable Water Flow Control Kit Functions

...............................................16

6. Setting of Outside Unit DIP Switch.................................................22

7. Setting Example .............................................................................23

2Variable Water Flow Controller Kit

Installation manual 3

Safety Precautions

nDuring installation

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions

must be followed.

nIncorrect operation due to ignoring instruction will cause harm or damage. The seriousness is

classified by the following indications.

nMeanings of symbols used in this manual are as shown below.

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

Be sure not to do.

Be sure to follow the instruction.

WARNING

Be sure to turn off

Outside unit power

Before installation.

Please install the

designated location in the

Control box.

• It can cause the breakdown

or accident.

Do not touch the board

when the power is

connected .

•

It can cause a fire, electric

shock, explosion, injury and

problem to the product.

Always request for installation of the

product to the service center or the

installation service provider.

•

It can cause a fire, electric shock, explosion

and injury.

When reinstalling the previously

installed product, request for service to

the service center or the installation

service provider.

•

It can cause a fire, electric shock, explosion and

injury.

4Variable Water Flow Controller Kit

Safety Precautions

nDuring use

Do not modify or extend the

Provided wires.

• It can cause a fire and

electric shock.

Do not pour water inside the

product.

• It can cause an electric

shock and problem to the

product.

When the product is submersed

in water, always request for

service to the service center or

the installation service provider.

• It can cause a fire and

electric shock.

Make the children and the

elderly use the product with

the help of a guardian.

• It can cause a safety

accident and problems to

the product.

Do not give impact to the

product.

• It can cause problem to the

product.

Accessory Parts

Installation manual 5

Accessory Parts

Controller Assy

(Variable Water Flow Control Board,

Transformer, Terminal Block, Harness Single)

Screw(2EA)

Manual

Tie (1EA)

Name of each Part

6Variable Water Flow Controller Kit

ڼڽ

ڸہ

Name of each Part

① Main connector : Power input and communication connector with Outside Unit

② SW104 : Rotary Switch for setting capacity control step

③ Digital Output : Operating & Error status Relay output (DDC output AC 1A at 250V source)

④ SW102 : Switch for setting internal function

⑤ Digital Input : Dry contact input

⑥ Analog Input : DC 0~10V Analog signal input

⑦ Analog Output : DC 0~10V Analog signal output

⑧ SW103 : Reset Switch

⑨ SW101 : DIP Switch for setting operating function

⑩ LED : Indicate VWFC*(board) status

- LED1C(Green) : communication status (receive)

- LED2C(Red) : communication status (transfer)

- LED3C(Yellow) : Communication error status

- LED4C(Orange) : Power status

* Variable Water Flow Control Kit

Variable Water Flow Control kit – Functions summary

Installation manual 7

Variable Water Flow Control kit – Functions summary

Variable Water Flow Control

This function can be applied to save pump operation power by optimizing water flow rate by

interlocking between electric valve and MULTI V WATER IV operation. Depends on MULTI V

WATER IV operation cycle, Variable Water Flow Control Kit(Board) outputs analog signal

(0~10V) to electric valve.

CAUTION

Please keep water flow rate more than 40% of rated water flow indicated MULTI V WATER

IV PDB

Demand control

- This function is to reduce Outside Unit power consumption by using input signal. This manual

provides variable setting to control outside unit capacity according to input method. This function

supports 2 types of input signal : AI(0~10V) and contact signal(3 Step).

Output Outside or Indoor Unit Operation status

- This function displays outside or indoor unitʼs operation status. Depends on DIP switch setting,

either outside or indoor unit operation status is reflected through output signal.

Output Outside or Indoor Unit Error Status Signal

- This function displays error signal by digital output when either outside or indoor unit has an

error

Installation Method

8Variable Water Flow Controller Kit

Variable Water Flow Control kit Installation Method

Installation Method

① Be sure to turn off outside unit power before installaion.

② Separate front panel from outside unit

③Separate front cover of control box.

④ Separate Oil_Level Harness(3Pin Yellow) in External PCB(CN28).

⑤ Sepatate VWFC* Cover in VWFC Assy.

⑥ Install the VWFC Assy to the C/Box by using screws.

* VWFC : Variable Water Flow Control kit

* Separate of Oil_Level harness

* Tighten the screw from bottom to

the top direction.

CAUTION

Be sure to turn off outside unit power before installation.

Installation Method

Installation manual 9

⑦ Connect a power cable (AC 24V) of water flow control valve to the terminal block

(2Pin Terminal block, Max current 0.42A).

⑧ Connect a signal cable (DC 0~10V) of water flow control valve to CN1_A0(A0_1(A+), GND(A-))

of VWFC.

⑨ Set up the main function DIP Switch of VWFC PCB. (Refer to 16page)

⑩ Pull out put through the cover hole.

⑪ Install the VWFC Cover by using screws.

AO_1

Setting and Using Method

10 Variable Water Flow Controller Kit

⑫ Connect the blue cable of transformer to the Main PCB(CN_JIG_N,CN_JIG_L).

⑬ Connect the black cable of VWFC PCB to the Main PCB(CN10).

⑭ Connect the Oil_Level harness(3Pin Yellow) to the External PCB(CN28).

⑮ Fix and fasten components and cables.

⑯Turn on the main power line of outside unit.

1. Install the product on flat surface and screw at least 2 places. Otherwise the VWFC PCB may not be

anchored properly.

2. Do not deform the case at random. It may cause malfunction of the Variable Water Flow Control PCB

3. This is a class A product. In a non-industrial environment, this product may cause radio interference, in

which case the user may be required to take adequate measures.

It must be installed variable flow valve on water circulation system in advance.

5. The internal resistance of variable water flow control valve must be above 100kΩ. The resistance of

signal cable(CN1_A0) must be below 10Ω.

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