LG THERMA V DHW Tank Kit User manual

DHW Tank Kit
PHLTA, PHLTC
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.
INSTALLATION MANUAL
AIR-TO-WATER
HEAT PUMP
MFL62047301
Rev.07_040521
www.lg.com
Copyright © 2012 - 2021 LG Electronics Inc. All Rights Reserved.
Safety Precautions
Part DescriptionSafety Precautions
Item Image Quantity (EA)
MCCB(Molded Case
Circuit Breaker)
&
Magnetic Contactor
1
Thermistor Sensor 1
Cable
(For connecting MCCB
with terminal block)
2
Fixing Screw for Magnetic
Contactor 2
Installation Manual 1
Bracket (For PHLTA) 1
Bracket (For PHLTC) 1
Fixing Screw for Bracket 2
Safety Precautions
To prevent injury to the user or other people and property damage, the
following instructions must be followed.
• Incorrect operation due to ignoring instruction will cause harm or
damage. The seriousness is classified by the following indications.
WARNING
This symbol indicates the possibility of death or serious injury.
CAUTION
This symbol indicates the possibility of injury or damage.
WARNING
Installation
• ELCB(Electric Leakage Circuit Breaker) should be installed for
safety.
• Entrust installation of the product to the service center
because improper installation may cause fire, an electric shock,
explosion, and physical injury.
• Use the original parts in order to prevent fire, an electric shock,
explosion, and product breakdown.
• Keep combustible and/or inflammable materials away from the
product in order to prevent fire or product breakdown.
• Do not disassemble, repair, or modify the product at your
discretion in order to prevent fire or an electric shock.
• Do not install the product in wet and humid areas in order to
prevent product breakdown.
• Do not drop water on to the product. It may cause an electric
shock or product breakdown.
!
!
!
• If the product was submerged under water, ask the service
center for instruction. It may cause fire or an electric shock
unless you do that.
• For electrical work, contact the dealer, seller, a qualified
electrician, or Authorized Service Center.
CAUTION
• Make sure children or senor citizens use the product under
proper observation in order to prevent safety accident.
• Do not subject the product to shock. It will cause product
breakdown.
• Do not pick the product with a sharp tool. It may cause product
breakdown with the damage to its parts.
•
Do not clean the product with strong cleanser such as solvent.
Use soft clothes in order to prevent fire or product deformation.
• Do not touch the product with a wet hand. Do not pull the lead
cable. It may cause product breakdown or an electric shock.
• Do not install the unit in potentially explosive atmospheres.
!
Part Description
Disposal of your old appliance
1. This crossed-out wheeled bin symbol indicates that waste elec-
trical and electronic products (WEEE) should be disposed of
separately from the municipal waste stream.
2. Old electrical products can contain hazardous substances so
correct disposal of your old appliance will help prevent potential
negative consequences for the environment and human health.
Your old appliance may contain reusable parts that could be
used to repair other products, and other valuable materials that
can be recycled to conserve limited resources.
3. You can take your appliance either to the shop where you pur-
chased the product, or contact your local government waste of-
fice for details of your nearest authorised WEEE collection
point. For the most up to date information for your country
please see www.lg.com/global/recycling

Installation Method
Installation MethodInstallation Method
Installation Method
Before Installing the DHW Tank Kit
• Check the port number of the magnetic contactor and MCCB before
installing the DHW Tank Kit. (Figure 1)
Figure 1. Port Number Assignment
• DHW tank booster heater can be used up to 3kW.
• Select a circuit breaker and power cable appropriate for the current.
How to Install the DHW Tank Kit
Follow the procedures in Step 1 ~ Step 6 below.
Step 1. Find the magnetic contactor and MCCB in the kit. Assemble them into
the indoor unit control box by using the enclosed components.
Step 2. Connect the indoor unit PCB harness connector with the magnetic
contactor using the enclosed cable. (Figure 3)
Step 3. Connect the magnetic contactor with MCCB. (Figure 2)
Step 4. Connect the magnetic contactor with the terminal block “WATER
TANK HEATER". (Figure 2)
Step 5. Connect MCCB to the terminal block "TO ELB FOR DHW TANK
E/HEATER". (Figure 2)
Step 6. Insert the DHW tank sensor into "CN_TH4" of the Main PCB. The
sensor should be mounted correctly into the sensor hole of the DHW
tank. (Figure 3)
How to Check Polarity
Follow the procedures in Step 1 ~ Step 3 below.
Step 1. Connect the magnetic contactor with MCCB.
Step 2.
Connect the magnetic contactor with the terminal block "WATER TANK HEATER".
Step 3. Connect the MCCB with the terminal block "TO ELB FOR DHW TANK
E/HEATER".
Figure 2. Wiring example
13
2 4
Magnetic Contactor MCCB
WATER TANK
HEATER
LN
TO ELB FOR
DHW TANK
E/HEATER
LN
Figure 3. PCB Wiring
DHW Tank
Sensor
CN_TH4
CN_B_HEAT_A
Indoor PCB
DHW Tank
Sensor
Indoor PCB
CN_TH4
CN_TANK_HEATER
Harness Connector Magnetic Contactor
CN_B_HEAT_A A1, A2
CN_TANK_HEATER A1, A2
Magnetic Contactor MCCB
L1
②
L3
④
MCCB TO ELB FOR DHW TANK
E/HEATER
①
L
③
N
Magnetic Contactor MCCB
L1
②
L3
④
Magnetic Contactor WATER TANK HEATER
T1 L
T3 N
Magnetic Contactor WATER TANK HEATER
T1 L
T3 N
MCCB TO ELB FOR DHW TANK
E/HEATER
①
L
③
N
※ Details may vary depending on the model. For more information, refer
to the installation manual and wiring diagram.
[Representative] LG Electronics Inc. EU Representative :
LG Electronics European Shared Service Center B.V.
Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro,
Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA
U.K. Importer
LG Electronics U.K. Ltd Velocity 2, Brooklands Drive, Weybridge, KT13 0SL
Installation Method