Lennox LM018HI-100P232-1X, LM024CI-100P232-1X, LM018HO-100P232-1X, LM024HI-100P232-1X, LM024HO-100P232-1X Owner's Manual

Split Air Conditioner

Thank you for selecting LENNOX air conditioners.Please read this manual
carefully before operation and keep it for further reference

.

OWNER'S MANUAL

LENNOX AIR CONDITIONERS

MODEL:

LM018CI-100P232-1X
LM018CO-100P232-1X
LM024CI-100P232-1X
LM024CO-100P232-1X
LM018HI-100P232-1X
LM018HO-100P232-1X
LM024HI-100P232-1X

LM009CI-100P232-1
LM009CO-100P232-1

LM024HO-100P232-1X

This marking indicates that this product should not be disposed with other household wastes
throughout the EU. To prevent possible harm to the environment or human health from un­controlled waste disposal, recycle it responsibly to promote the sustainable reuse of mate­rial resources. To return your used device, please use the return and collection systems or
contact the retailer where the product was purchased. They can take this product for envi­ronmental safe recycling.

Content

Operation Notices

Precautions............................................................................................................1

Parts Name............................................................................................................7

ScreenOperation Guide

Buttons on remote controller .................................................................................9

Introduction for icons on display screen ...............................................................9

Introduction for buttons on remote controller .......................................................10

Function introduction for combination buttons .....................................................13

Operation guide ...................................................................................................14

Replacement of batteries in remote controller .....................................................14

Emergency operation ..........................................................................................15

Maintenance

Clean and Maintenance.......................................................................................15

Malfunction

Malfunction analysis ............................................................................................18

Installation Notice

Installation dimension diagram ............................................................................22

Tools for installation .............................................................................................23

Selection of installation location ..........................................................................23

Requirements for electric connection ..................................................................24

Installation

Installation of indoor unit......................................................................................25

Installation of outdoor unit ...................................................................................30

Vacuum pumping .................................................................................................33

Leakage detection ...............................................................................................33

Check after installation ........................................................................................34

Test and operation

Test operation ......................................................................................................34

Attachment

.........................................................................35

Pipe expanding method

Configuration of connection pipe

.......................................................................................37

This appliance is not intended for use by persons (including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.

1

Precautions

WARNING

Do not connect air conditioner to multi-purpose socket.

This appliance can be used by children aged from 8

Operation and Maintenance

If the supply cord is damaged, it must be replaced by
the manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.

Do not spray water on indoor unit. It may cause electric
shock or malfunction.

Otherwise, it may cause fire hazard.

Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by

children without supervision.

years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe
way and understand the hazards involved.

Do not wash the air conditioner with water to avoid
electric shock.

After removing the filter, do not touch fins to avoid injury.
Do not use fire or hair dryer to dry the filter to avoid

deformation or fire hazard.

Do disconnect power supply when cleaning air
conditioner. Otherwise, it may cause electric shock.

.

Do not block air outlet or air inlet. It may cause
malfunction.

remote controller may be broken.

● Power cord is overheating or damaged.

● There’s abnormal sound during operation.

● Circuit break trips off frequently.

● Air conditioner gives off burning smell.

● Indoor unit is leaking.

contact the dealer or qualified professionals for service.

When turning on or turning off the unit by emergency
operation switch, please press this switch with an insulating
object other than metal.

outlet. It may cause personal injury or damage.

2

Precautions

WARNING

conditioner and disconnect power immediately, and then

If the air conditioner operates under abnormal conditions,
it may cause malfunction, electric shock or fire hazard.

Do not spill water on the remote controller, otherwise the

electric shock or damage. Please contact dealer when
you need to repair air conditioner.

Do not repair air conditioner by yourself. It may cause

objects. It may cause damage or personal injury.

Do not step on top panel of outdoor unit, or put heavy

When below phenomenon occurs, please turn off air

Do not extend fingers or objects into air inlet or air

Maintenance must be performed by qualified
professionals. Otherwise, it may cause personal injury

or damage.

Do install the circuit break. If not, it may cause malfunction.

of at least 3mm in all poles should be connected in fixed
wiring.

magnet buckle

and heating buckle function, it can protect

the circuit-short and

overload.

power supply circuit and circuit break.

3

Precautions

WARNING

note

the following table.Air switch should be included

Make sure the power supply matches with the
requirement of air conditioner.Unstable power supply or
incorrect wiring or malfunction. Please install proper power
supply cables before using the air conditioner.

An all-pole disconnection switch having a contact separation

Must follow the electric safety regulations when installing
the unit.

grounding wire of power socket.

Properly connect the live wire, neutral wire and

any work related to electricity and safety.

Be sure to cut off the power supply before proceeding

Including an circuit break with suitable capacity, please

Air Conditioner should be properly grounded. Incorrect

Don't use unqualified power cord.

grounding may cause electric shock.

According to the local safety regulations, use qualified

Installation must be performed by qualified professionals.
Otherwise, it may cause personal injury or damage.

Attachment

Installation must be performed in accordance with the

persons in order to avoid a hazard.

must be properly grounding with specialized grounding
device by a professional. Please make sure it is always
grounded effectively, otherwise it may cause electric shock.

The appliance must be positioned so that the plug is
accessible.

If the length of power connection wire is insufficient, please
contact the supplier for a new one. Avoid extending the
wire by yourself.

All wires of indoor unit and outdoor unit should be
connected by a professional.

national wiring regulations.

requirement of NEC and CEC by authorized personnel
only.

4

Precautions

WARNING

wire, which can't be used for other purposes.

The grounding resistance should comply with national
electric safety regulations.

The air conditioner is the first class electric appliance. It

keep the interconnection cable away from the copper
tube.

The temperature of refrigerant circuit will be high, please

the manufacturer, its service agent or similarly qualified

If the supply cord is damaged, it must be replaced by

The yellow-green wire in air conditioner is grounding

The appliance shall be installed in accordance with

Do not put through the power before finishing installation.

The indoor unit should be installed close to the wall.

reachable after finishing installation.

far away from animals or plants.If it is unavoidable,
please add the fence for safety purpose.

WARNING

place, only the qualified person can perform the work.
Otherwise, it may cause personal injury or damage.

If you need to relocate the air conditioner to another

must be installed in the line.

For the air conditioner without plug, an circuit break

Select a location which is out of reach for children and

For the air conditioner with plug, the plug should be

Working temperature range

Indoor side DB/WB(℃) Outdoor side DB/WB(℃)
Maximum cooling 32/23 43/26
Maximum heating 27/- 24/18

● The operating temperature range (outdoor temperature) for cooling only unit is
18℃~43℃; for heat pump unit is -7℃~ 43℃.

For LM009CI-100P232-1, LM009CO-100P232-1

NOTICE:

Precautions

5

6

For LM018CI-100P232-1X, LM018CO-100P232-1X, LM018HI-100P232-1X

Indoor side DB/WB(℃) Outdoor side DB/WB(℃)

Maximum cooling 32/23 48/30

Maximum heating 27/- 24/18

● The operating temperature range (outdoor temperature) for cooling only unit is
18℃~ 48℃; for heat pump unit is -7℃~ 48℃.

NOTICE:

Precautions

LM018HO-100P232-1X,LM024CI-100P232-1X, LM024CO-100P232-1X
LM024HI-100P232-1X, LM024HO-100P232-1X

7

(Display content or position may be di

fferent from above

graphics, please refer to actual products)

Parts Name

Indoor Unit

Outdoor Unit

air inlet
panel

aux.button

horizontal louver
air outlet

remote control

air inlet

Connection wire

air outlet

NOTICE:

Actual product may be different from above graphics, please refer to actual
products.

Parts Name

Display content or position may be different from above graphics, please refer to actual
products.

Display

W R G

temp.
indicator

display

receiver
window

W R O

temp.
indicator

display

receiver
window

heating
indicator

temp.
indicator

cooling
indicator

power
indicator

receiver
window

drying
indicator

display

For some model:

For some model:

For some model:

For some model:

heating
indicator

temp.
indicator

cooling
indicator

power
indicator

receiver
window

drying
indicator

display

G

W

R

Power LED color indicator:
Green-status-ON.
Red-status-OFF.

Mode LED color indicator:
White-W-Cool Mode-

Red-R-Heat Mode-

Green-G-Dry Mode-

O

W

R

Power LED color indicator:
Green-status-ON.
Red-status-OFF.

Mode LED color indicator:
White-W-Cool Mode-

Red-R-Heat Mode­Orange-O-Dry Mode-

(only for heating model)

(only for heating model)

8

9

Buttons on remote controller

Introduction for icons on display screen

1

14

3

1

13

2

2

5

4

6
7

8

11
12

13

9

14
15

ON/OFF button

▲ button

3

FAN button

SWING button

TIMER OFF button

TURBO button

10

TEMP button

I FEEL button

button

CLOCK button
TIMER ON button
SLEEP button

Send signal
Turbo mode

8℃ heating function

Set temperature

Set time
TIMER ON /

TIMER OFF
Child lock

Up & down swing

Set fan speed

ventilation operation

Light

Temp. display type

:Set temp.

:Outdoor ambient temp.

:Indoor ambient temp.

Sleep mode

Clock

Heat mode

Fan mode

Dry mode

Cool mode

Auto mode

Operation mode

I feel

6
9

8

12
15

4
7

10

5

11

X-FAN button

/

MODE button

▲

button

X-fan mode

health function

10

Introduction for buttons on remote controller

Note:

● After putting through the power, the air conditioner will give out a sound.
Operation indictor " " is ON (red indicator). After that, you can operate the air
conditioner by using remote controller.

●

Under on status, pressing the button on the remote controller, the signal icon " "
on the display of remote controller will blink once and the air conditioner will give
out a “de” sound, which means the signal has been sent to the air conditioner.

● Under off status, set temperature and clock icon will be displayed on the display
of remote controller (If timer on, timer off and light functions are set, the corre­ sponding icons will be displayed on the display of remote controller at the same

time); Under on status, the display will show the corresponding set function icons.

ON/OFF button

▲ button

1

2

Press this button to turn on the unit. Press this button again to turn off the unit.

Press this button to increase set temperature. Holding it down above 2 seconds rapidly
increases set temperature. In AUTO mode, set temperature is not adjustable.

MODE button

3

Each time you press this button,a mode is selected in a sequence that goes from
AUTO, COOL, DRY, FAN, and HEAT *, as the following:

SWING button

4

Press this button to set up & down swing angle, which circularly changes as below:

button

5

Press this button to decrease set temperature. Holding it down above 2 seconds rapidly

decreases set temperature. In AUTO mode, set temperature is not adjustable.

After energization, AUTO mode is defaulted. In AUTO mode, the set temperature will
not be displayed on the LCD, and the unit will automatically select the suitable opera­tion mode in accordance with the room temperature to make indoor room comfortable.

▲

AUTO COOL DRY FAN

HEAT

*

* Note: Only for models with heating function.

OFF

This remote controller is universal. If any command , or is sent out,
the unit will carry out the command as

indicates the guide louver swings as: