LG PHLTB INSTALLATION MANUAL

P/NO : MFL65222201

INSTALLATION MANUAL

AIR CONDITIONER

www.lg.com

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.

(Sanitary Water Tank Kit)

PHLTB

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be followed.

Be sure to read before installing the unit. Be sure to observe the cautions specified here as they include important items related to safety. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to properties only.

For antifreeze, always contact the dealer or an authorized service center.

•

Almost the antifreeze is a toxic product.

Do not modify or extend the power cable.

• There is risk of fire or electric shock.

Do not install, remove, or reinstall the unit by yourself (customer).

• There is risk of fire, electric shock, explosion, or injury.

Be cautious when unpacking and installing the unit.

•

Sharp edges could cause injury. Especially careful on the unit edges and the fins on the heat exchanger.

Install the panel and the cover of control box securely.

• There is risk of fire or electric shock.

Always install a dedicated circuit and breaker.

• Improper wiring or installation may cause fire or electric shock.

Use the correctly rated breaker or fuse.

• There is risk of fire or electric.

Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit.

• There is risk of fire or electric shock.

For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center.

• There is risk of fire or electric shock.

Always ground the unit.

• There is risk of fire or electric shock.

Be sure the installation area does not deteriorate with age.

• If the base collapses, the unit could fall with it, causing property damage, unit failure, and personal injury.

Keep level even when installing the unit.

• To avoid vibration or water leakage.

Use two or more people to lift and transport the unit.

• Avoid personal injury.

For installation, always contact the dealer or an Authorized Service Center.

Do not install the unit on a defective installation stand.

• There is risk of fire, electric shock, explosion, or injury. • It may cause injury, accident, or damage to the unit.

Parts

Installation Method

How to Install Sanitary Water Tank Kit

Follow below procedures Step 1 ~ Step 5.

To establish sanitary water circuit, 3way valve and sanitary water tank kit is required.

Step 1. Uncover the water tank kit and locate it on the wall.

Step 2. Connect the water tank kit to the main power like the below figure 2.

Step 3. Connect the water tank kit to the Main PCB Assembly1 like the below figure 2.

Step 4.

Connect power cord of sanitary tank heater. It is located inside of the tank. Refer to the next page for more information.

Step 5.

Find sanitary water tank sensor

Step 6.

Connect the Main PCB to terminal block with wire(Part 4) like figure 3.

※ This wire is only for AHBWXXXA0 model.

. Plug it to 'CN_TH4' (Red Connector) of the main PCB assembly 1. Like below figure. 1

The sensor should be mounted correctly to the sensor hole of sanitary water tank.

Sensor mounting

Insert sensor into sensor socket and bolt it tightly

Sanitary Water

Tank

Sanitary

Sensor

CN-TH4

Main Power

220-240

Main PCB

Fig. 1

Fig. 2

Fig. 3

Water Tank

CH-B/HEAT(A)

Connecting Sanitary Water Tank

Outdoor Indoor

Floor heating loopFan coil unit

Sanitary

water

tank

Hot water

City water

Radiator

E/T

E/H

W/P

High Temperature

Room Thermostat(Field supply)

2way valve (Field supply)

3way valve (Field supply)

By-pass valve(Field supply)

Low Temperature

Expansion Tank (Field supply)

Air Vent

Strainer(Mesh : 1mm*1mm)

Remote Controller

E/T

Electric Heater

E/H

Water Pump (Field supply)

W/P

Note:

• Sanitary water tank

- It should be equipped with internal electric heater to generate sufficient heat energy in very cold season.

supports following 3way valve.

(1) : SPDT = Single Pole Double Throw. Three wires consist of Live1 (for selecting Flow A), Live 2

(for selecting Flow B), and Neutral (for common).

(2) : Flow A means ʻwater flow from the unit to under floor water circuit.ʼ

(3) : Flow B means ʻwater flow from the unit to sanitary water tank.ʼ

YesSelecting “Flow B” between

“Flow A” and “Flow B” (3)

YesSelecting “Flow A” between

“Flow A” and “Flow B” (2)

1~ 230 VSPDT

3-wire

(1)

SupportedOperating ModePowerType

• 3way valve

- Refer to the installation manual of to install the 3way valve.

DIP Switch Setting

Turn off electric power supply before setting DIP switch.

• Whenever adjusting DIP switch, turn off electric power supply to avoid electric shock.

General Information

OFF ON

OFF is selected

ON is selected

Description Setting Default

Accessory installation information.

Unit only

Unit + Sanitary water tank is installed.

Unit + Sanitary water tank + Solar thermal system is installed.

Installing recirculation pump

When is used with sanitary water tank, it is STRONGLY recommended to install recirculation pump to prevent flooding out cold water at the end of hot water supply and to stabilize the water temperature inside the sanitary water tank.

- The recirculation pump should be operated when sanitary water demand is not required. Therefore, external

time scheduler to determine when the recirculation pump should turn on and turn off is required.

- The operating duration time of the recirculation pump is calculated as follow :

Duration time [minute] = (k*V)/R k : 1.2 ~ 1.5 is recommended. (If distance between pump and tank is far, then choose high number.) V : Volume of sanitary water tank [liter] R : Water flow rate of pump [liter per minute], which is determined by pump performance curve.

- The pump operating start time should be prior to the sanitary water demand.

Sanitary

Water Tank

Recirculation Pump

External

Time Scheduler

Check Valve

Shower (End of Hot water supply)

Hot water supply

City water

Water In

Water Out

How to Wire Sanitary Water Tank Heater

Step 1. Uncover heater cover of the sanitary water tank. Heater is located

inside of the tank.

Step 2. Find terminal block in the water tank kit and connect wires as below.

Wires are field-supplied item.

(L) : Live signal from Water Tank Kit to Heater

(N) : Neutral signal from Water Tank Kit to Heater

(L) (N)

Terminal block

in the water

tank kit

BR BL

L43N

Fig. 3

Wire specification

• Cross-sectional area of the wire should be over 5mm2.

• You should use the shield wire for the signal wire in terminal block 5,6 not to make the electric noise.

Adjusting thermostat temperature

• To guarantee proper operation, it is recommended to set temperature of thermostat to maximum temperature (symbol

at the figure 3).

Sensor (Thermistor)

Water tank kit

Installation Manual

Multi harness (only AHBWXXXA0 model use)

1 2 3

MCCB

Magnetic switch

YL RD

A1 A2

Magnet switch

contact

Wiring Diagram

Terminal Block 3