Gree KFR-25 User manual

Please read this owner’s manual
carefully before operating the unit
SPLIT AIR CONDITIONER
WALL MOUNTED MODEL
(INVERTER)
Owner’s Manual
KFR-25×3GW/NaJ31F
KFR-18×4GW/NaJ31F
©GREE 66162209
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
ADD:JINJI WEST ROAD, QIANSHAN, ZHUHAI, GUANGDONG CHINA
TEL:[phone] P.C.:519070

CONTENTS
CONTENTS
1
3
5
6
7
8
9
10
11
12
13
14
15
16
18
20
21
25
26
28
30
Operation and maintenanceInstallation
The instructions before use
Name and function of each part
Name and Function-Remote control
Name and Function-Remote control(continue)
COOL mode operation procedure
HEAT mode operation procedure
DRY mode operation procedure
AUTO mode operation procedure
TIMER mode operation procedure
SLEEP mode operation procedure
How to insert batteries
The best operating methods
User notices
Care and Maintenance
Trouble shooting
Technical specifications
Accessories and Installation diagram
Installation location
How to install the indoor unit
How to install the outdoor unit
Test operation and check after installation
Remote control operation procedure

1
The instructions before use
Never splice the power cord or
use an extended cord.
It can cause overheating or fire.
WARNING
THE INSTRUCTIONS BEFORE USE
Don’t apply the cold wind to
the body for a long time.
It cause
the physical condition deteriora-
tion and health problems.
When having a burning smell
or smoke, please turn off the
power supply.
Don’t attempt to repair the air
conditioner by yourself.
You may cause further malfunc-
tions
Don’t insert your hands or stick
into the air intake or outlet
vents.
It can cause danger.
Earth: It must be reli-
ably earthed. The earth
wire must be connected to
the special grounding devices.
Can't be connected to the water
pipe, gas pipe, sewage drain or
the places where are not reliabe
earthed.

2
THE INSTRUCTIONS BEFORE USE
Please note whether the in-
stalled stand is firm enough or
not.
It leads to the falling of the unit
which causes the injury etc.
occasionally.
Don’t step on the top of the out-
door unit. As falling off the out-
door unit can be dangerous.
Don’t block the air intake or
outlet vents of both the outdoor
and indoor units. It can decrease
the air conditioning capacity or
cause a malfunction.
Don’t place a space heater near
the air conditioner.Air flow
from the air conditioner can cause
incomplete combustion to the
space heater.
Keep combustible spray away
from the units.
It is likely to ignite and explode.
Don’t use any other fuse ex-
cluding the fuse of correct
capacity.
Improper wire could cause the
breaking down or fire.
WIRE

3
KFR-25×3GW/NaJ31F
Name and function of each part
Indoor Unit
Outdoor Unit
3
Air in
Surface panel Display
Air out
Louver
Zoom in the display
Remote
control
Set Temp
Heating Cooling
Power/Run
Drying
Drain hose
Air in
Air out
Connection
pope and
connecting
wire
NAME AND FUNCTION OF EACH PART
Auto
Fan

4
NAME AND FUNCTION OF EACH PART
KFR-18×4GW/NaJ31F
Name and function of each part
Indoor Unit
Outdoor Unit
Air in
Surface panel Display
Air out
Louver
Zoom in the display
Remote
control
Set Temp
Heating Cooling
Power/Run
Drying
Drain hose
Air in
Air out
Connection
pope and
connecting
wire
Auto
Fan

Remote control operation procedure
Name and Function-Remote control
Note:
Be sure that there is on obstruction.
Don't drop or throw the remote control.
Don't place the remote control in a location exposed to direct sunlight.
When the unit is restarted after stopped, it can automatically resume its most
latest running mode, and the outdoor unit starts a little bit later.
to 30 .
MODEbutton
press this button to change the
operation mode in order of:
COOL mode DRY mode
FAN mode HEAT mode.
ON/OFF button:
Press this button once to turn
on and repress to turn off
the unit.
“ ” COOL mode
“ ” DRY mode
“ ” FAN mode
“ ” HEAT mode
FAN button
At AUTO,COOL,FAN and
HEAT mode press this button
to change the fan speed of:
Memory function of fan
speed is available under
every mode.
SWING button
At operating,When it is pressed,
the louvers start to rotate automa-
-tically and stop when repressed
again.When press it twice in one
second,the light on the panel of
indoor unit will be turned on.when
press it twice in one second again,
the light will be turned off.
decreases 1 by pressing button
TEMP-DN once.
At COOL,DRY,FAN and HEAT mode
TEMP.button
SET TEMP. increases 1by
pressing button TEMP-UP once,and
SET TEMP.can be selected from 16
5
REMOTE CONTROL OPERATION PROCEDURE

Name and Function-Remote control(continue)
Note: This type of remote controller is a kind of new current controller.
some buttons of the controller which are not available to this air condi-
tioner will not be described below.
Operate on unmentioned buttons would not impact on the normal use.
TIMER button:
Press this button to set time.
SLEEP button:
Press this button to set SLEEP
operation.
CANCEL button:
Press CANCEL button once,it
will cancel all the timing settings.
CLOCK button:
Press CLOCK button once,the sign
of TIME blinks,and it comes into
time setting mode. Then press button
H-UP or H-DN once,the SET TIME
will be increased of decreased by 1
minute accordingly.If press button
H-UP or H-DN for 1 second or more,
the SET TIME will be increased or
decreased by 10 minute every half
a second accordingly.When adjustment
finished,press button CLOCK again to
confirm.
Liquid crystal displayer. It
shows all set contents.
T-ON button:
At stopping, press T-ON
button, set ON TIME to
start the unit automatically.
When press T-ON button,
the sign of TIMER ON will
blink.
T-OFF button:
At stopping, press T-OFF
button, set OFF TIME to
stop the unit automatically.
When press T-OFF button,
the sign of TIMER OFF will
blink.
RESET button:
Press RESET button once,
the control system comes in-
to default settings.
6
REMOTE CONTROL OPERATION PROCEDURE

According to the differences between room temp.and set temp.and the rate dropp-
ing of room temp.,microcomputer can control output power of the compressor,that
is,the cooling capacity.
IffanspeedissetatAUTOmodemicrocomputercancontrolfanspeedoftheind-
oorfanmotoraccordingtotheoutputpowerofthecompressor.
Settemp.shouldbeinrangeof16to30.
COOL mode operation procedure
1.Plug in,press ON/OFF
button,and then air condi-
tioner is turned on.
4.Press FAN button,set fan
speed.
5.Press TEMP button,set
suitable SET TEMP.
2.Press MODE button,set
operation mode.
3.Press SWING button,the
louvers start to rotate
automatically and stop
when repressed.
7
REMOTE CONTROL OPERATION PROCEDURE

According to the differences between room temp.and set temp.and the rising rate of
room temp.,microcomputer can control output power of the compressor,that is,the
heating capacity.
IffanspeedissetatAUTOmodemicrocomputercancontrolfanspeedoftheindoor
fanmotoraccordingtotheoutputpowerofthecompressor.
Settemp.shouldbeinrangeof16to30.
HEATmodeoperationprocedure
1.Plug in,press ON/OFF
button,and then air condi-
tioner is turned on.
4.Press FAN button,set fan
speed.
5.Press TEMP button,set
suitable SET TEMP.
2.Press MODE button,set
operation mode.
3.Press SWING button,the
louvers start to rotate
automatically and stop
when repressed.
8
REMOTE CONTROL OPERATION PROCEDURE

1.Plug in,press ON/OFF
button,and then air condi-
tioner is turned on.
4.Press FAN button,set fan
speed.
5.Press TEMP button,set
suitable SET TEMP.
2.Press MODE button,set
operation mode.
3.Press SWING button,the
louvers start to rotate
automatically and stop
when repressed.
The mode function is to remove the vapor from the room.
Settemp.shouldbeinrangeof16to30.
DRYmodeoperationprocedure
9
REMOTE CONTROL OPERATION PROCEDURE

At AUTO mode operation,standard SET TEMP.is 25 for COOL mode and 20
for HEAT mode.
AUTOmodeoperationprocedure
1.Plug in,press ON/OFF
button,and then air condi-
-tioner is turned on.
2.According to room temp,
microcomputer can
automatically set
COOL
HEAT
FAN
operation mode,so as for
best effect.
10
REMOTE CONTROL OPERATION PROCEDURE

At stopping,press TIMER ON button,set ON TIME in range of 0 to 24
hour to start the unit automatically.
TIMERmodeoperationprocedure
At operating,press TIMER OFF button,set OFF TIME in range of 0 to 24
hour to stop the unit automatically.
T-ON button:
At stopping, press T-ON
button, set ON TIME to
start the unit automatically.
When press T-ON button,
the sign of TIMER ON will
blink.
T-OFF button:
At stopping, press T-OFF
button, set OFF TIME to
stop the unit automatically.
When press T-OFF button,
the sign of TIMER OFF will
blink.
SET TIME increases 1minute
by pressing button H-UP once,
and decreases 1 minute by pre-
ssing button H-DN once in ra-
nge of 0 to 12 hour.When pre-
ssing button H-UP or H-DN
for 1 second or more, the SET
TIME will increase or decrease
by 10 minute every half second
accordingly.
It is in effect both at operating
and stopping.SET TIME
increases 1 minute by pressing
button H-UP once,and decreases
1 minute by pressing button H-DN
once in range of 0 to 12 hour.When
pressing button H-UP or H-DN for
1 second or more,the SET TIME
will increase or decrease by 10
minute every half a second accor-
dingly.
11
REMOTE CONTROL OPERATION PROCEDURE

When the unit is cooling or drying,if SLEEP operation is set,SET TEMP.would incr-
ease 1 in 1 hour and 2 in 2 hours.
When the unit is heating,if SLEEP operation is set,SET TEMP.would decrease 1
in 1 hour and 2 in 2 hours.
Under SWITCH C mode,press H-UP or H-DN button when SLEEP mode is started,
timer-off time can be adjusted from 1 to 7 hour.
SLEEPmodeoperationprocedure
1.Plug in,press ON/OFF
button,and then air condi-
-tioner is turned on.
4.Press FAN button,set fan
speed.
5.Press TEMP button,set
suitable SET TEMP.
2.Press MODE button,set
COOL DRY or HEAT
6.SLEEP button Press it to
set SLEEP operation.
operation mode.
3.Press SWING button,the
louvers start to rotate auto-
matically,and stop when
repress again.
12
REMOTE CONTROL OPERATION PROCEDURE

Don't confuse the new and worn or different batteries.
Remove batteries when not in use for a longtime.
The batteries can be used for about one year.
The remote control should be lm or more away from television or audio device.
Howtoinsertbatteries
1.Remove the cover from the back of the remote control.
2.Insert the two batteries(Two AAA dry-cell batteries).
3.Re-attach the cover.
NOTE:
13
REMOTE CONTROL OPERATION PROCEDURE

The best operating methods
adjust to the
suitable temp. too
cool will do harm
to the health.
take out the batteries if the
remote controller will be
free within a long period.
cleaning the air filter seri-
ously and maintaining the
air cleaner carefully.
avoiding directly
lighting and cool
air leaking.
* If two indoor units are set at different mode operation, whether the latter-runned unit is feasible to
run is descrebed below.
If unfeasible, the buzzer of the latter-runned unit will make three ringings, then it turns off. Please notice that it’s a normal
phenomenon.
Indoor unit (A) Indoor unit (B or C or D)
COOL
DRY
HEAT
FAN
COOL
DRY
HEAT
FAN
Yes or No
Yes
Yes
No
Yes
No
No
Yes
No
COOL (run first)
HEAT (run first)
14
THE BEST OPERATING METHODS

USER NOTICES
Select the most appropriate temperature. It can
avoid the electricity wasting.
Don’t leave windows and doors open while the air
conditioner for a long time. It can decrease the air
conditioning capacity.
Splashing water on the air conditioner can cause
anelectricshockandmalfunction.
Air conditioner should be operated with stable
voltageinrangeof207V-253V1ph.Otherwise,com-
pressor would vibrate terribly to damage refrig-
eration
system.
The air flow direction can be adjusted appropria-
tely. The louvers can be adjusted downward at heat-
ing operation, and upward at cooling operation.
Don’t blow the wind to animals and plants directly.
It can cause a bad influence to them.
The ground must be connected.
Don’t connect the earth wire to gas or water pipes.
Lighting rods or telephone earth lines.
Don’t use the air conditioner for other purposes,
such as drying clothes, preserving foods, etc.
15
USER NOTICES
Louver of left/right Louver of upward/downward
direction
direction

CAUTION
Turn power off before cleaning air conditioner.
Don’t sprinkle water on the indoor unit and the outdoor unit for cleaning.
Wipe the units with a dry soft cloth, or a cloth slightly moistened with water or
cleanser.
Care and Maintenance
Cleaning the air filters (Recommended once every three months)
1. Take down the air filter
Open the surface panel,hold the tab of air filter
2. Cleaning
To clear the dust adhering to the filters, you can either
use a vacuum cleaner, or wash them with water and
dry it in the shade.
NOTE:
Never use water above 45 to wash
the filters, or it could cause deforma-
tion or discoloration.
16
(CARE AND MAINTENANCE) CEDURE
and raise it slightly,and then take it out along
the direction of arrow (see the right figure).
Clean the front panel ( When cleaning the front panel do not take it off)
When the indoor unit front panel is dirty, please use the cloth which is soaked in the warm water under 40℃，
then dry it and wipe the dirty places.
NOTE:
There are microcomputer components and circuit board on the displayer of the indoor unit front panel, never
let it dip in the water.

3.Reinsert the filters
Reinsert the filters with side marked FRONT
facing forward.
Preparation before use
1.Be sure that nothing obstructs the air outlet and intake
vents.
2.Check that whether ground wire is properly connected
or not.
3.Replace filters if necessary.
4. Replace the batteries if necessary.
Maintain after use
1.Clean filters and other parts.
2.Turn main power off.
3.Clear dust from the outdoor unit.
4.If there is any rust in the outdoor unit, this should be
painted over to prevent it from spreading.
17
(CARE AND MAINTENANCE) CEDURE

Trouble shooting
Phenomenon
Indoor unit does not
operate immediately
when the air condi-
tioner is restarted.
There’s unusual
smell blowing from
the outlet after opera-
tion is started.
Sound of water flow
can be heard during
operation.
Mist is emitted dur-
ing cooling opera-
tion.
Creaking noise can
be heard when start
or stop the unit.
Air conditioner does
not operate at all.
Cooling(Heating)ef-
ficiency is not good.
Wireless remote con-
troller is not avail-
able.
Trouble Shooting
Once the air conditioner is stopped, it will not operate in
approximately 3 minutes to protect itself.
This is caused by the odors in the room which have been
breathed into the air conditioner.
This is caused by the refrigerant flowing inside the unit.
Because the air of the room is cooled down rapidly by the
cold wind and it looks like the fog.
This is caused by the deformation of plastic due to the
change of temperature.
Has the power been shut down?
Is the wiring loose?
Is the leakage protection switch in operation?
Is voltage higher than 253V or lower than 198V?
Is TIMER ON in operation?
Is SET TEMP. suitable?
Is air inlet or outlet obstructed?
Are air filters dirty?
Is indoor fan speed set at low speed?
Is there any other heat source in your room?
Is the remote control unit out of effective distance to the
indoor unit?
Replace the worn batteries of wireless remote controller.
Are there any obstructions between the wireless remote
controller and the signal receptor?
18
TROUBLE SHOOTING