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.
VENTILATOR
Original instruction
INSTALLATION MANUAL
AIR
CONDITIONER
www.lg.com
Copyright © 2017 - 2019 LG Electronics Inc. All Rights Reserved.
MFL67855539
Rev.02_013019
ENGLISH
Table of contents
TABLE OF CONTENTS
3 SAFETY PRECAUTIONS
6 INTRODUCTION
6 Symbols used in this manual
6 Feature dimension diagram
10 INSTALLATION
10 Installation map
12 Installation of main body
12 Connection of duct
14 Method to connect power cord
15 How to connect remote controller(accessory)
16 Group control
17 Installer setting -How to enter installer setting mode
19 TEST RUNNING
19 Method to operate and select air volume – Interlinked operation with ventilation.
20 Method to operate and select air volume – Ventilation single operation
21 In case of finding a problem at a test running
21 Airborne noise emission
21 Available accessories
2 Ventilator
Safety precautions
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.
ENGLISH
!
WARNING
!
CAUTION
Meanings of symbols used in this manual are as shown below.
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
Installation
• 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.
- Do not disassemble or repair the product. There is risk of fire or electric shock.
• Always ground the product.
- There is risk of fire or electric shock.
• 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 shock.
• Do not modify or extend the power cable.
- There is risk of fire or electric shock.
• Do not install, remove, or re-install the unit by yourself (customer).
- There is risk of fire, electric shock, explosion, or injury.
• Be cautious when unpacking and installing the product.
- Sharp edges could cause injury.
• For installation, always contact the dealer or an authorized service center.
- There is risk of fire, electric shock, explosion, or injury.
• Do not install the product on a defective installation stand.
- It may cause injury, accident, or damage to the product.
Installation manual 3
Safety precautions
• Do not let the product run for a long time when the humidity is very high and a door or a window is
left open.
- Moisture may condense and wet or damage furniture.
• For re-installation of the installed product, always contact the dealer or an authorized service center.
- There is risk of fire, electric shock, explosion or injury.
• Do not open the maintenance cover of the main body during operation.
- Otherwise, it may cause electrical shock.
• Use the outdoor air suction hole with the net installed to ensure that birds could not come in.
- Remove estrange things like the bird’s nest. Otherwise, it may cause scarcity of indoor oxygen.
• Install the air intake where polluted air can not be directly sucked in.
- It may cause various accidents, including suffocation, due to the suction of harmful gasses(CO,
etc.)
• Do not install this product in a refrigerated warehouse, heated swimming pool or other location
where the temperature and humidity are significantly different.
- There is risk of electrical shock, malfunctioning.
• Install this product in an environment where the temperature ranges from –10 °C to +45 °C and the
relative humidity is less than 80%. It condensation is expected to form, heat up the fresh outside air
using a duct heater etc.
• Install this product in and environments where the outside air intake meets the following conditions:
temperature range is between –15 °C and +40 °C and the relative humidity is 80 % or less.
• Use the designated electrical wires for the terminal board connections, and connect the wires
securely so that they will not become disconnected. (Failure to ensure proper connections may
cause fire.)
• When passing metal ducts through wooden buildings clad with metal laths, wire laths or metal, these
ducts must be installed in such a way that they will not make electrical contact with the metal laths,
wire laths or metal sheets. (Power leakage can cause ignition)
Operation
• Avoid fire equipment
- There is risk of fire.
• When the product is soaked (flooded or submerged), contact an authorized service center.
- There is risk of fire or eletric shock.
• Don't touch a dedicated circuit or breaker with wet hands.
- There is risk of electric shock.
• When the product is not be used for a long time, disconnect the power supply plug or turn off the
breaker.
- There is risk of product damage or failure, or unintended operation.
• When flammable gas leaks, turn off the gas and open a window for ventilation before turn the
product on.
- Do not use the telephone or turn switches on or off.
There is risk of explosion or fire.
• Be cautious that water could not enter the product.
- There is risk of fire, electric shock, or product damage.
• Turn the breaker off when cleaning or maintaining the product.
- There is risk of electric shock.
4 Ventilator
Safety precautions
• The outside ducts must be tilted at a gradient (1/30 or more) down toward the outdoor area from the
ventilator unit, and properly insulated. (The entry of rain water may cause power leaks, fire or
damage to household property.)
• Glove should be worn when doing the installation work. (There is risk of injury.)
!
CAUTION
Installation
• Don't connect the ground wire to the window frame or water cock.
- There is risk of electric shock.
• Do not install the product at a smoky and oily place like kitchen or factory.
- Otherwise. oil may adhere to the filter or heating exchanger and cause trouble.
• Install the product in an insulated space from outdoor air.
- In case of installing the product outside of the insulated layer, dewing occurs inside of the main
body in winter.And it causes electrical shock or falling of condensed water.
• Keep level even when installing the product.
- To avoid vibration or water leakage.
• Use two or more people to lift and transport the product.
- Avoid personal injury.
• Do not install the product where it will be exposed to sea wind (salt spray) directly.
- It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator
fins, could cause product malfunction or inefficient operation.
ENGLISH
Operation
• Use a soft cloth to clean. Do not use harsh detergents, wax or thinner, etc.
- Otherwise, color or surface of the oroduct mav deteriorate.
• Clean the filter and the heat exchanger regularly and use the gloves for cleaning.
- Adhering to a mass of dust may cause the deterioration of air volume.
• Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a
consumer ventilator, not a precision refrigeration system.
- There is risk of damage or loss of property.
• Do not block the inlet or outlet of air flow.
- It may cause product failure.
• Do not step on or put anyting on the product.
- There is risk of personal injury and failure of product.
• Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.
Installation manual 5
Introduction
Introduction
Symbols used in this manual
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that could cause harm to the
product.
NOTICE
This symbol indicates special notes.
Feature dimension diagram
Model : 250 / 350 CMH
Blower for exhausting air
EA
(Exhaust Air)
OA
(Outdoor Air)
Maintenance cover
Total heat exchanger
Suspension fixture
Blower for supplying air
Control box
RA
(Return Air)
SA
(Supply Air )
F
Air filter
Model
250 CMH
350 CMH
h
It necessary to secure sufficient space for maintenance more than the dimensions described in the
Figure Duct pitch WeightPitch of suspension fixture Duct connection flange
A B C D E F G H J K L kg
1 014 988 273 939 1 025 135 200 194 252 96 590 198 44
Nominal
diameter
Unit : mm
product service.
6 Ventilator
Model : 500 CMH
Introduction
ENGLISH
Blower for exhausting air
EA
(Exhaust Air)
OA
(Outdoor Air)
Maintenance cover
Total heat exchanger
Air filter
Suspension fixture
Blower for supplying air
Control box
RA
(Return Air)
SA
(Supply Air )
F
Unit : mm
Model
500 CMH
h
It necessary to secure sufficient space for maintenance more than the dimensions described in the
Figure Duct pitch WeightPitch of suspension fixture Duct connection flange
A B C D E F G H J K L kg
1 014 988 273 939 1 025 135 200 194 252 96 590 198 44
Nominal
diameter
product service.
Installation manual 7
Introduction
Blower for exhausting air
Blower for
supplying air
Control box
Suspension fixture
Maintenance cover
Total heat exchanger
Air filter
F
RA
(Return Air)
SA
(Supply Air)
OA
(Outdoor Air)
EA
(Exhaust Air)
Model : 800 / 1 000 CMH
1 000 CMH
h
It necessary to secure sufficient space for maintenance more than the dimensions described in the
product service.
8 Ventilator
Model
A B C D E F G H J K L kg
800 CMH
1 062 1 140 365 987 1 176 180 250 242 253 98 513 481 62
Figure Duct pitch WeightPitch of suspension fixture Duct connection flange
Nominal
diameter
Unit : mm
Model : 1 500 / 2 000 CMH
Introduction
ENGLISH
D
QP
Model
1 500 CMH
2 000 CMH
O
RA
EA
B
N
E
SA
OA
Maintenance cover
A
C
L
K
Air filter
Control box
JM
G
Total heat exchanger
H
Unit : mm
Figure
A B C D E F G H J K L M N O P Q Kg
1 313
1 140
Pitch of suspension
fixture
738 987 1 176 339
Duct connection flange Duct pitch
242 253 98 340 350 130 410 482 233 271 140
F
Weight
h
It necessary to secure sufficient space for maintenance more than the dimensions described in the
product service.
Installation manual 9
Installation
Installation
Installation map (250 / 350 / 500 / 800 / 1 000 CMH)
Plane figure
RA grille
EA
OA
Front view
Duct slope: More than 1/30(wall side)
obtaining of right distance
(Preventing penetration of rain water)
New type hood
(Preventing penetration of rain water)
EA
OA
Three dimension view
Ventilator
Maintenance space
Inspection hatch
Duct
Ventilator
1m or more 1m or more
Inspection hatch
Ceiling fixing bolt(Supplied by installer)
SA
SA grille
RA
RA grilleSA grille
Maintenance cover
Control box
SA grille
Installation of maintenance cover
EA
OA
More than 600
10 Ventilator
Ventilator
main body
Maintenance space
600x600
Inspection hatch
Installation map (1 500 / 2 000 CMH)
Maintenance cover
Control box
SA grille
Plane figure
RA grille
Installation
ENGLISH
EA
OA
Front view
Duct slope: More than 1/30(wall side)
obtaining of right distance
(Preventing penetration of rain water)
New type hood
(Preventing penetration
of rain water)
EA
OA
Three dimension view
Ventilator
1m or more
Inspection
hatch
Maintenance
space
Inspection
hatch
Ceiling fixing bolt(Supplied by installer)
1m or more
RA RA
RA grille
SA SA
SA grille
SA grille
Installation of maintenance cover
EA
OA
Ventilator
main body
More than 600
Maintenance space
600x600
Inspection hatch
Installation manual 11
Installation
Duct
Taping
Installation of main body
Assembly of washer, nut
Tighten the common washer and nut (more than 21
mm for the outside diameter of M10, to the commercial
ceiling fixing bolt (M10) as shown in the right figure.
• For the ceiling fixing bolt, perform work less than
50mm under the ceiling fixing bracket.
Ceiling fixing bolt
(M10)
Nut
Spring washer
Washer
Nut
Connection of duct
After securely connect the duct with the duct connection flange, wrap it with a commercial aluminium
tape so that air cannot be leaked.
Adjust the duct from the ceiling so that no force is applied to the main body of the ventilation system.
Always use two ducts at the outdoor with the heat insulating material for prevention of dewing.
12 Ventilator
Installation
Duct to OA
Main body
Heat insulating material
Aluminium
Duct connection flange
Rapid bending Excessive bending
Too close bending
to outlet
Rapid reduction of
duct diameter
!
CAUTION
• Check that there are no foreign materials
(paper, vinyl, etc) or cutoff powders in the
duct before connecting the duct.
• Take care so that shock may not be applied
to the damper plate within the main body
when performing the duct connection work.
• It is recommended to perform adiabatic
treatment even to the duct pipe at the indoor
side where ambient temperature is expected
higher than room temperature when the main
body of the ventilation system for cooling in
summer.
• Take care so that work may not be performed
as in the left figure. Otherwise, it may cause
reduction of air volume or abnormal noise.
!
CAUTION
•
In -10 ℃ below ambient temperature, when ventilation is installed the equivalent space in the
outdoor and outdoor, It may cause condensation, you must install drainage facilities(drain pan)
and MD(Motorized Damper) at SA/RA duct.
ENGLISH
Installation manual 13
Installation
Wiring specifications
Sheathed wire (should be complied with 60245 IEC 53 standard)
Size 0.75 - 1.25 mm
2
Length MAX. 100 m
External contact specifications Normally closed contact (Current tolerance 10 mA - 0.5 A)
Round pressure terminal
Power wire
Method to connect power cord
Release two screws and then open the
cover of the control box.
With reference to the below wiring diagram,
•
Cover of control box
Screw
accurately connect the main power cords into the
terminal block.
After inserting the power cord into the bushing, fully insert it into the
terminal block for connection.
• Fix the power cords with the clamp.
• Make sure that the power cords may not be removed by pulling them.
LZ-H025GBA4/LZ-H035GBA4/LZ-H050GBA4
LZ-H080GBA4/LZ-H100GBA4
GND Power M.D. M.D.
M.D.
1(L)
2(N)
GND
GN/YL BR BL
3(L) 4(N)
Not
available
LZ-H150GBA4/LZ-H200GBA4
GNDPower
M.D.
1(L)
2(N)
3(L) 4(N)
Not
available
GND
GN/YLBR BL
Cord clamp
!
CAUTION
The power cord connected to the unit should be selected according to the following specifications .
!
WARNING
Indoor unit ground wires are required for preventing electrical shock accident during current leakage,
Communication disorder by noise effect and motor current leakage (without connection to pipe).
Wiring specifications
Precautions when laying power wiring
Use round pressure terminals for connections to the
power terminal block.
14 Ventilator
Installation
Please check if connector is normally connected.
Connecting cable
Indoor
Unit side
How to connect remote controller(accessory)
Please connect indoor unit and remote controller using connection cable.
Please use extension cable if the distance between wired remote controller and
indoor unit is more than 10 m.
!
CAUTION
When installing the wired remote controller, do not bury it in the wall.
(It can cause damage in the temperature sensor.)
Do not install the cable to be 50 m or above.
(It can cause communication error.)
• When installing the extension cable, check the connecting direction of the connector of the remote
controller side and the product side for correct installation.
• If you install the extension cable in the opposite direction, the connector will not be connected.
• Specification of extension cable: 2547 1007 22# 2 core 3 shield 5 or above.
ENGLISH
Installation manual 15
Installation
GND
GND
12V
Signal wire
Signal wire
GND
12V
B Y R B Y R
Master Slave
Signal wire
GND
12V
Signal wire
Group control
When installing more than 2
units of air conditioner to one
wired remote controller, please
connect as the right figure.
• If it is not event communication
indoor unit, set the unit as slave.
• Check for event communication
through the product manual.
When controlling multiple indoor units with event communication function with one remote
controller, you must change the master/slave setting from the indoor unit.
- Indoor units, the master/slave configuration of the product after completion of indoor unit power
‘Off’ and then ‘On’ the power after 1 minutes elapsed sign up.
- For ceiling type cassette and duct product group, change the switch setting of the indoor PCB.
12345678 12345678
#1 switch Off: Master
(Factory default setting)
- For wall-mount type and stand type product, change the master/slave setting with the wireless
remote controller. (Refer to wireless remote controller manual for detail)
h When installing 2 remote controllers to one indoor unit with event communication function, set
the master/slave of the remote controller. (Refer to remote controller master/slave selection)
When controlling the group, some functions excluding basic operation setting, fan level
min/mid/max, remote controller lock setting and time setting may be limited.
#1 switch On: Slave
When installing more than 2 wired remote
controllers to one air conditioner, please
connect as the right picture.
• When installing more than 2 units of wired
remote controller to one air conditioner, set
one wired remote controller as master and
the others all as slaves, as shown in the
right picture.
• You cannot control the group as shown in
the right for some products.
•
Refer to the product manual for more detail.
• When controlling in groups, set the master/slaver of the remote controller. Refer to
Installer setting section on how to set master/slave for more detail.
16 Ventilator
<When simultaneously connecting
2 sets of wired remote controller>
Installation
Installer setting -How to enter installer setting mode
!
CAUTION
Installer setting mode is to set the detail function of the remote controller.
If the installer setting mode is not set correctly, it can cause problems to the product, user injury or
property damage. This must be set by an certificated installer, and any installation or change that is
carried out by a non-certificated person should be responsible for the results. In this case, free service
cannot be provided.
If pressing button long for 3 seconds,
1
it enters into remote controller setter
setup mode.
- If pressing once shortly, it enters into
user setup mode. Please press more
than 3 seconds for sure.
When you enter the setting mode
2
initially, Function code is displayed on
the bottom of the LCD screen.
ENGLISH
Function code Value
•
Some categories of the menu may not be displayed according to the function of the
product, or the menu name may be different.
Installation manual 17
Installation
<Installer setting code table>
General ventilation product
No. Function Code Value
1 01 01 : Test run setup
Test run
2 02 00~FF : Address of central control
303
404
5 05
606
7 07
809
9 10 01 : Set
10 11
Address setting
SA(Supply Air) ESP
EA(Exhaust Air) ESP
Product direction
Quick refresh priority
Master setting
Dry contact
Release of 3 minute delay
Zone state test run
<ESP level> <ESP value> <Example>
01 : Low 0~255
02 : High
03 : Super high
01 : Normal
02 : Opposite
01 : Supply air first
02 : Exhaust air first
00 : Slave
01 : Master
00 : Auto-off
01 : Auto-on
01 : Variable
02 : Fixed
Function Code ESP valueESP step
h Some contents may not be displayed depending on the product function
18 Ventilator
Test running
ENGLISH
Test running
Method to operate and select air volume – Interlinked operation with ventilation.
It is used when air conditioner is interlinked with ventilation product.
It is a function that cools and refreshes indoor air using the ventilation product at the same time
operating the air conditioning function.
Ventilation interlinked operation
Press button on the remote
1
controller control panel.
- It is only used when air conditioner
and general ventilation is
interlinked.(‘Interlinked operation’ displayed
on the remote controller display)
Pressing 'Start/Stop' button at ventilation
2
mode will start ventilation.
Pressing button will change the
3
ventilation operation mode.
Pressing operation selection button
will change the mode in the order of
'heat exchange → normal → automatic'
❈ It only displays on the remote controller
display when it is in ventilation mode, and it
displays the desired temperature when it
returns to air condition mode.
Pressing button in general
4
ventilation mode will change airflow
speed.
Pressing airflow speed button will
change the mode in the order of 'weak → strong
→ very strong'.
2 sensor is installed, it can select from 'weak
If CO
→ strong → very strong → automatic'.
Changing back to air conditioner mode
5
1)Automatic conversion : when no button is
pressed for 15 seconds or longer, it
automatically converts back to air
conditioner mode.
2) Manual conversion : pressing button in
ventilation mode will manually convert.
Installation manual 19
Test running
Method to operate and select air volume – Ventilation single operation
It is a function to cool and refresh the indoor air using general ventilation product..
Ventilation single operation
Press button on the remote
1
controller.
Pressing button will change
2
the ventilation mode.
Ventilation
Remote controller
mode
Heat
exchange
Normal
Automatic
In the case of heat exchange mode, the display is
shown as below.
3
display
Circulate indoor air without loss of heat
Directly circulate indoor air without going
through heat exchanger
Circulate indoor air with automatically
comparing indoor and outdoor air
→→→ →→→→
Pressing button will change
the strength of the wind
- Pressing the button can select
from 'weak
strong'.
- If CO2 sensor is installed, it can select from
'weak → strong → very strong → automatic'.
→
strong → very
Contents
20 Ventilator
In case of finding a problem at a test running
Symptom Check item Counter-measure
The product doesn't work Is power not supplied? Supply power
Is the indoor temperature less
than 15 ℃ (59 ℉) or more than
40 ℃ (104 ℉)?
The product doesn't work through
you press the 'On' switch
Is air filtecr, total heat exchanger
clogged severely?
It's standby mode for protecting
total heat exchanger.
Follow cleaning and changing
method.
Test running
ENGLISH
The fan doesn't run
Even though you push the
button of remote controller, any
function doesn't work.
Are the PCB and remote
controller rightly connected?
"Is the outdoor temperature the
limit temperature?
(Less than -10 °C (14 °F), more
than 45 °C (113 °F))"
Is the icon " " displaying on
remote controller?
Connect rightly PCB and remote
controller.
Switch on Option No. 5.
Repower the product and check
whether it works or not.
Switch off Option No. 5. and
repower the product once again.
It's child lock mode.
Refer to remote controller.
Airborne noise emission
The A-weighted sound pressure emitted by this product is below 70 dB.
** The noise level can vary depending on the site.
The figures quoted are emission level and are not necessarily safe working levels. Whilst there is a
correlation between the emission and exposure levels, this cannot be used reliably to determine
whether or not further precautions are required. Factor that influence the actual level of exposure of
the workforce include the characteristics of the work room and the other sources of noise, i.e. the
number of equipment and other adjacent processes and the length of time for which an operator
exposed to the noise. Also, the permissible exposure level can vary from country to country. This
information, however, will enable the user of the equipment to make a better evaluation of the hazard
and risk.
Available accessories
Remote controller (PQRCVSL0/PQRCVSL0QW)
F7 filter (AHFT035H0/AHFT050H0/AHFT100H0)
sensor (AHCS100H0)
CO
2
PI485 gateway
Installation manual 21
22 Ventilator
ENGLISH
Installation manual 23
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