Lennox Comfort Series User manual

Model No:LNWR21X
Please read the operating instructions and safety
precautions carefully and thoroughly before installing
and operating your room air conditioner.
WINDOW-TYPE ROOM AIR CONDITIONER
LNWR53X
LNWR59X
LNWR39X

CONTENTS
Function
Operating Condition
Power requirement
Installation
Notes for installation
Part identification 6
Air direction adjustment 6
Operation Tips 11
Caution 12
Care and maintenance 13
Trouble-shooting guide 14
Structure mechanism and Installation
Operation of Remote Controller 7
Operation procedure
Care and maintenance
2
2
3
5
1
After service 15
Thank you for choosing LENNOX air conditoner.Our design is based on the best efficiency and the lowest
noise operation , whilst keeping the room comfortable.Please read this operating manual carefully before
operating the unit and store it away somewhere handy for future consultation.
Please read this operating manual care-
fully before operating the unit.
The figures in this manual may be different with the material objects,
please refer to the material objects for reference.
Remote control panel 10

Function
Introduction
Lennox, window type room air conditioners of can regulate the
room temperature to maintain the comfort levels inside you room.
It is convenient for your work,study and life and can be widely used
in residence, shop, hotel, office, library and laboratory, and so on.
Room
temp.
Spring
Summer
Autumn
Wind
direction
Winter
Cooling in summer
In hot summer, air conditioner can cool down
the room air by transferring heat out.
Dehumidifying in rainy or
humid season
Exchange fresh air
Open storm door to keep the fresh air in the room.
Dry
Fresh Air
Heating in winter
In cold winter, air conditioner can heat up room air.
(Only for heat unit)
Without reducing the room temp., air conditioner
can dehumidify and make the room air dry and
comfortable.
- 1 -

Operating Condition
Power requirement
DRY mode operation
Water pipe
Rated voltage :230V~
The electric components could get damaged if the voltage is too high.
If the voltage is too low, the compressor will vibrate violently
damaging
the refrigerant system and easily causing the compressor
and electrical
components to stop working.
The ground must be connected.
Special socket must be used. Furthermore, the socket and wiring
must conform to the local wiring regulations. And the earthing
must be reliable.
In fixed circuit, there must be electricity leakage protection switch
of enough power capacity and air switch with enough space.
Earth wire To ensure the reliable earthing, please do not connect earth wire to the following places:
Please operate air conditioner in the correct conditions as following.
COOL mode operation
In this mode, the air conditioner operates
efficiently when the ambient temperature
is between 18 and 43 oC.
Humidity inside the room has to be below
90 oC or else the air conditioner condensates
and there could be excessive water running
through the drains of the unit.
In this mode, the air conditioner operates
efficiently when the ambient temperature
is between 18 and 43 oC.
method
- 2 -

It would be beneficial to have following clearances
around the unit
1500mm,left 500mm,right 500mm, front 1500mm.
should be upper 300mm, lower
Installation
Installation precaution:
Improper installation of these units could potentially cause
serious damage to these units. It is recommended to engage
services of a professional expert to install these air
conditioning units.
Location:
The condensation water must be drained away conveniently.
In salt and coastal area or places near thermal springs
and polluted by sulphurous gas, or other special areas, please
contact
the seller before use.
Avoid other heat sources or direct sun light.
Avoid installing these products in places where
it is easy for children to touch or interfere with the
operation of these units.
For Window type air conditioners with remote
control, avoid installing these units in places
with strong electromagnetic disturbance to
prevent any malfunctioning of the remote signals.
How to install:
Choose a location where there are no any obstacle surrounding
the unit,and the plug is accessible.
Prepare the installation hole slightly bigger than unit size.
Choose the installation space according to the below diagram.
Don't use the unit in the immediate surrondings of
a laundry,a bath,a shower or a swimming pool.
Install air conditioner unit far away from TV set or radio
etc. to avoid disturbing video or voice.
Avoid installing these units close to places where there could
be a potential gas leak or near inflammable gases.
Over
1000 mm
- 3 -

Sunshade board
Wall
Wooden frame
Rubber plate
Support
Horizontal line
Horizontal line
Drain water :
Installation procedure:
1) Remove the sticker from the front panel.
2) Put the unit into the installation hole.
When installing the unit, it should be slanted
down to the back to avoid the enlargement of
noise or vibration. (Slant between 6-10mm.)
(As shown in the illustration.)
The installation place should be strong enough
to avoid any vibrational noises.
3) Fill up gaps in the cabinet with sponge or foam.
Installation assistance:
Use iron support
The installation hole should be strong enough to
support the air conditioner. If it cannot, iron sup-
port has to be used outdoors.
Iron support should be fixed on the building (Shown
at right figure.)
Use sunshade board
To avoid any accidental damage to the unit from
things falling from above, it is recommended to
install a sunshade board and this can be installed
by the installer.
To get the maximum cooling efficiency, the air conditioner is designed to splash the condensation
water on the condenser coil.To the cooling only unit,If the splashing sound annoys you, you can
provide an outside drain by using the following procedure, which may however cause a small loss
of performance.
1. Slide out the chassis from the cabinet.
2. Remove the rubber plug from the body base plate.
3. Install the drain pan to the corner of the cabinet with 2 screws.
4. Connect the drain hose to the outlet on the drain pan bottom.
5. Slide the chassis into its original place in the cabinet.
6~10mm
6~10mm
Please refer to below illustration.
- 4 -

Notes for installation
Un-install Air conditioner
Lennox Window air conditioner must be un-installed
by a professional installer of air conditioning equipment.
Noise
Electric wiring
Install air conditioner in a location with minimum vibrational noises.
Maintain unit outlet with no blockages or else the air conditioner
could be noisy.
Please contact your installer as soon as there is strange noise during operation.
Please use the safety support.
Must be connected to earth.
The exclusive circuit must be used. No removable socket can be used to connect
this unit or else it can over heat and cause fire.
If the supply cord is damaged,it must be replaced to avoid a hazard.
In fixed circuit, there must be electricity leakage protection switch and leakage current
should be less than 30mA.
Air switch (thermal-magnetic breaker) should be installed in the circuit.
Note:
Drain pan and drain hose must be installed before using reverse cycle models.
Drain hose or tubing can be purchased locally to satisfy your particular needs.
Don’t pull the power cord strongly.
All the electrical work must be carried out in accordance to local wiring regulations.
An all-pole disconnection switch having a contact separation of at least 3mm in all poles
should be connected in fixed wiring
Connecting method between air conditioners and power cord and interconnecting method
of each individual element with one another should comply with wiring diagram on the unit.
The air conditioner should be installed in accordance with local wiring regulation.
GJH18AC-K3RNB9A, GJC18AC-K3RNB9A can be connected only to a supply with system
impedance no more than 0.225 ohm. In case necessary, please consult your supply authority for
system impedance information.
GJH18AC-K3RNB9B, GJC18AC-K3RNB9B can be connected only to a supply with system impedance
no more than 0.243 ohm. In case necessary, please consult your supply authority for system
impedance information.
- 5 -

Part identification
Vertical airflow direction vane
(Airflow direction adjustment up and down).
Air direction adjustment
Front grille
Air inlet louver
Cabinet
Air filter
Front intake grille
Remote control panel
Panel outlook picture, just for reference, please take the real until as standard.
(behind the front intake grille)
Power cord
The vertical airflow direction vane is controlled by positioning the vane
to discharge the air upwards, downwards or straight out.
- 6 -

Press it to start or stop operation.
ON/OFF
MODE
-
+
Press it to select operation mode
(AUTO/COOL/DRY/FAN/HEAT).
:Press it to decrease temperature
setting.
:Press it to increase temperature
setting.
FAN
Press it to set swing angle.
TIMER
SLEEP
Press it to set fan speed.
Press it to set auto-on/auto-off timer.
1
2
3
4
5
6
8
7
Operation of Remote Controller
2
7
4
3
8
6
5
1
SWING
Remote Controller Description
- 7 -

Operation of Remote Controller
Remote controller description
Press this button to turn on the unit. Press this button again to turn off the unit.
Press this button to go into the SLEEP operation mode. Press it again to cancel this function.
This function is available in COOL, HEAT (Only for models with heating function) or DRY
mode to maintain the most comfortable temperature for you.
ON/OFF :
MODE :
Press this button to decrease set temperature. Hold it down for above 2 seconds to
rapidly decrease set temperature. In AUTO mode, set temperature is not adjustable.
Press this button to increase set temperature. Hold it down for above 2 seconds to
rapidly increase set temperature. In AUTO mode, set temperature is not adjustable.
Auto
Speed 1 Speed 2 Speed 4 Speed 3
Press this key to activate or deactivate the swing.
SLEEP:
1
2
3
4
5
6
7
AUTO COOL DRY FAN HEAT *
*Note: Only for modelswith heating function.
:
:
FAN
-
+
:
SWING:
This button is used for setting Fan Speed in the sequence that goes from AUTO,
,then back to Auto.
,
,to
Each time you press the button, a mode is selected in a sequence that goes from AUTO,
COOL, DRY, FAN,and HEAT *,as the following:
- 8 -