13 SEER Mini Split Air Conditioner
with Heat Pump and Back up Electric Heat Strip
KFTHP-12-ID/KFTHP-12-OD
KFTHP-18-ID/KFTHP-18-OD
KFTHP-24-ID/KFTHP-24-OD
R
T
T
K
CM
US
C
I
E
3119233
1
Safety Precautions
Symbols in this Use and Care Manual are interpreted as shown below.
Be sure to follow this instruction.
WARNING! DANGER!
CAREFUL! Pay Attention.
Remove the power source plug from a socket.
Warning: Incorrect handling could cause a serious
hazard, such as death, serious injury, etc.
Grounding is essential.
Keep the power supply
circuit breaker or plug
from dirt. Connect the
power supply cord to it
firmly and correctly,
Do not use the power
supply circuit breaker or
pull off the plug to turn it
off during operation. This
may cause a fire due to
spark, etc.
Use correct power supply in accordance with the
rating plate requirement. Otherwise, serious faults
or hazard such as a fire could occurt.
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.
ON
ON
OFF
OFF
or hazard could occur.
IDo not stand in front of indoor
unit for extended periods of
time due to health
Do not tangle, pull or press
the power supply cord,
as this cord will be
damaged and an
electric shock or fire
could occur.
Never insert a stick or similar obstacle
to the unit. When
the fan rotates at high
speed, this may
cause an injury.
hazard.
Do not repair the appliance by yourself.
If this is done incorrectly,
it may cause an electric
shock, etc.
S
LEE
P
T
I
M
E
R
O
N
OFF
FEEL
AUTO
HI
MED
LO
If malfunction occurs turn
off at remote control first
before turning off main
power.
C
OOL
DRY
FAN
HEAT
S
WING
SLEEP
TIMER
FAN
SWING
MODE
ON/OFF
Prevent the air flow from
reaching the gas burners
and stoves.
It is the user's responsibility to ground
the appliance according
to local codes or
Do not put any
objects on the
outdoor unit.
ordinances by a licenced
technician.
Do not touch the operation buttons
when your hands are wet.
Check that the plug is not covered with dust and
make sure to insert it firmly so that it does not get
loosened.
When not using the system for a long time,
remove the plug from the socket to
ensure safety.
Do not use extension cords
and do not connect
the air conditioner to a
socket to which other
electric appliances are
connected.
Fully insert the
plug firmly.
If the plug is covered with dust,it could cause
a fire.
If the plug is coverd with dust or improperly
inserted, thes may cause electric shock or fire.
If abnormal conditions occur,such as smell
of burning,immediately stop the system'
operation,remove the power plug and
consult your Dealer.
Make sure to use a fuse of proper
electric rating.
Do not wash the air conditioner with water.
Use of steel or copper
wire instead of a fuse is
strictly prohibited
and will void the warranty.
Operating the system under
abnormal conditions could result in
malfunctions,eletric shocks,fire,etc.
It could cause electric shocks.
Do not put anything on the unit,
especially vases which contain
water inside.
When the system is operating simultaneously
with a combustion apparatus,you should
air the room frequently.
Before cleaning the system,stop
the operation and remove the
power plug.
If water gets into the unit,it can
cause an electrical short and
this could cause electric
shocks.
Insufficient
Cleaning should never be
carried out while the inside
fans are running.
ventilation could
cause an oxygen
deficiency accident.
Notes:For the purpose of innovation and improvement,above products are subject to change without prior notice.
The air conditioner is not a toy , please keep away from children.The appliance shall not be installed in
the laundry area.
1
1
Identification of Parts
Indoor Unit
Air Intake
Front Panel
Emergency Panel
Display Panel
Air Outlet
Vertical Adjustment
Louver
Horizontal Adjustment
Louver
Charcoal Filter
(optional)
Electrostatic Filter
(optional)
Air Filter
Remote Control
Air Intake
Outdoor Unit
Pipes and Power
Connection Cord
Drain Hose
Note: Condensate water drains
at COOLING or DRY operation.
Air Outlet
The figures in this manual are based on the external view of a standard model.
Consequently, the shape may differ from that of the air conditioner you have selected.
2
1
Identification of Parts
Operating and Display
Temperature display
Display of environm-
ental temperature or
setting temperature
Run Indicator
Timer Indicator
It is on during
operation.
It lights up during
the set time.
Power Indicator
It lights up when
power supply is on.
Sleep Indicator
It lights up during the
set sleep function
The above operatingsketch map issuitable for Z BG series.
Signal Receives
Temperature display(optional)
Receive signal from the
remote control.
Display of environmental tem-
perature or setting temperature
Sleep Indicator
Timer Indicator
It lights up during the set time.
It lights up during the set
sleep function
Power Indicator
Run Indicator
It lights up when power
supply is on.
It is on during operation.
SLEEP
POWER
TIMER
RUN
The above operatingsketch map issuitable for C
BD BE BF BH and BJseries.
D
E
F
G
H
J
K
M
N
V
Z
Temperature display
Display of environm-
ental temperature or
setting temperature
Temperature display
Signal Receives
Receive signal from
the remote control.
Display of environm-
ental temperature or
setting temperature
Power Indicator
Run Indicator
It lights up when
power supply is on.
It is on during
operation.
Sleep Indicator
It lights up during the
set sleep function
Sleep Indicator
Timer Indicator
It lights up during the
set sleep function
It lights up during the
set time.
Power Indicator
It lights up when
power supply is on.
The above operating sketch map is suitable
for L R and Y series.
The above operating sketch map is suitable
for Q series.
Emergency Button
Used to control the unit when the
remote control is out of work.
This way of operation is suitable
for C D
Z series.
N
R
L
M
Y and
ON/OFF
Emergency Button
Used to control the unit when the
remote controller is out of work.
This way of operationis suitable for
ON/OFF
E
F
G
H
J
K
Q
Z
BD
BE BF BG BH and BJ series.
Remarks:When remote controlis not working properly,,open the paneland you cansee emergency
button there,(see above picture).The emergency buttonfor 15K 16K 18K 22K 24K
28K and 30Kseries is atthe top right,see ON/OFF button there.
The shape and position of the switches and indicators may vary from different models,but their function are simiar.
3
1
Remote Control
Remote Control
The remote control transmits signals to the system.
ON/OFF button
Used to start and stop operation .
Signal Transmitting Window
Transmits signals to the system.
TIMER button
Used to select TIMER operation.
UP button (TOO COOL button)
Setting Display
Used to increase the set room temperature (60 f ~87 f)
and time(0.5~24h or 1~12h ).
DOWN button (TOO WARM button)
Used to decrease the set room temperature and time.
SLEEP button
Used to set or cancel sleep operation.It includes
normal-SLEEP( )and Comfortable-
SLEEP( ),but Comfortable-SLEEP is optional.
QUIET
9
12
3
QUIET
11
14
SWING control button
Used to adjust airflow direction.
7
6
FAN SPEED control button
Used to select the indoor fan motor speed:
5
4
2
8
Auto(
Mid(
or
or
), High(
or
or
) and Low(
or
),
or or
).
This function is invalid in sleep mode.
10
13
15
MODE button
Used to select the type of operation mode: FEEL(
),
1
RESET
COOLING( ), DRY( ), FAN( ) AND HEATING
(
Only for Heat Pump).FEEL mode can select the operation
mode such as COOL,DRY,FAN,HEAT automatically depending on the room temperature,and the feel mode is
default setting at starting.
3D button(optional)
9
Used to start and stop 3D operation .Two-direction Airflow,the horizontal louver is opened different
direction in different mode(optional).
ECO. button(optional)
10
EC
(This function does not apply to the Units of KFTHP-12, KFTHP-18, and KFTHP-24. )
Used to start and stop ECONOMY operation .This function is invalid in SUPER mode.
DISPLAY button(optional)
11
12
Used to start and stop DISPLAY screen operation .
ANTI-MILDEW button(optional)
Used to start and stop ANTI-MILDEW operation .
SUPER button(optional)
(This function does not apply to the Units of KFTHP-12, KFTHP-18, and KFTHP-24. )
13
POWERFUL
Used to start and stop SUPER operation .
HEALTHY button(optional)
Used to start and stop HEALTHY operation .
14
15
RESET button(optional)
Used to restart.
Note:The position and figure of buttons are subject to the actual unit,;the relevant function
is not activated even if press the optional button which is invalid for some models;
Each mode and relevant function will be further specified in following pages.
4
1
Remote Control
Remote Control
Some remote control s display:
Feel Cool Dry Fan Heat
SLEEP TIMER ON TMIER OFF
AUTO
HIGH
MID
LOW
SWING
FEEL
COOL
Timer
off
Timer
on
C
h
C
h
DRY
FAN
HEAT
Auto Low Mid High Sleep Swing
Style.3
Style.1
Style.2.
FAN
SPEED
FEEL
COOL
DRY
AUTOQUIET
AIR
SWING
POWERFUL
C
AUTO
hr
DELAY
FAN
HEAT
ON
OFF
ON
HEALTHY
TIMER
Style.5
Style.4
Note:The above remote control is only for reference, subject to the actual unit.
When inserting the batteries for the first time or each time the batteries are replaced
as they are discharged, the remote control mades a short Auto-Test :all the
symbols can be displayed are shown on the screen and keep 2 seconds,then the
symbol will flash from Cool to HEAT alternatively.For cooling only air con,
please press any button when the cooling symbol is flashing,the the remote controller
has been set as cooling only.For cooling and heating ,please press any button
when the heating symbol is flashing,then the remote control has been set as cooling
and heating.If none of the button is pressed within 10 seconds,the remote controller will
be set as cooling and heating automatically.Cooling only can use the remote
control which has cooling and heating function,but do not have the function of heating.
Although the heating is not running,remote control will still have some display.
The light of the remote control will be turned on by pressing any button for
1.5~3 seconds,and it will be turned off automatically if no button is pressed
within 10 seconds.
5
1
Remote Control
Remote Control
Please slide and remove the cover.
How to Insert the Batteries
1
Remove the battery cover according to the arrow direction.
Insert new batteries making sure that the (+) and (-) of
battery are matched correctly.
Slide the cover
upwardly in the
direction of the
arrow.
Re-attach the cover by sliding it back into position.
Exchange the batteries.
Note:
2
3
Use 2 LR03 AAA(1.5volt) batteries. Do not use
rechargeable batteries.Replace batteries with new
ones of the same type when the display becomes dim.
Attention to
the and +
marks.
Storage and Tips for Using the Remote Control
The remote control may be mounted on a wall with
a holder.
Install the cover.
Note: The remote control holder is an optional part.
Remote control holder
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How to Use
To operate the room air conditioner, aim
the remote control to the signal receptor.
The remote control will operate the air
conditioner at a distance of up to 10 feet
when pointing at signal receptor of indoor
unit.
Signal receptor
F
E
C
E
L
O
S
L
D
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6
Operation Instructions
1
FEEL mode operation procedure
Operates by selecting automatically the operation mode(HEAT,DRY,FAN,COOL)depending on
the room temperature during staring.
With the remote control pointing toward the air conditioner.
Turning on
ON/OFF
Press
button, when the appliance receives the
1
2
signal, the RUN indicator of the indoor unit lights up.
SLEEP TIMER ON TMIER OFF
FEEL
COOL
AUTO
HIGH
MID
LOW
SWING
DRY
FAN
HEAT
When the unit is not at FEEL mode.
Selecting FEEL mode
Press the MODE select button.
SLEEP
TIMER
FAN
Move the MODE to the FEEL position.
SWING
MODE
ON/OFF
Operation mode and temperature are determined by indoor temperature
1
22
3
Indoor temperature
Operation mode
Target temperature
HEATING ( FOR HEAT PUMP TYPE)
FAN (FOR COOL ONLY TYPE)
73 f
Less than 68 f
68 f - 79 f
DRY
64 f
73 f
Over 79 f
COOL
Air temperature adjustment is possible even during FEEL operation.
There are 4 levels of adjustment possible with the button or
the button.
Setting temperature
Press the
button or the
button.
When the button is pushed,the temperature will increase 1 f
After temperature will increase 2 f,the indicator will not change.
When the button is pushed,the temperature will reduce 1 f
After temperature reduce 2 f ,the indicator will not change.
.
.
The operation of the AUTO
mode can be performed by
only pressing the ON/OFF
button from the next time.
NOTE
There will be a delay when changing mode
is made during the operation.
As there might not be air blown out.
If you don't like the content of FEEL mode operation,
change to HEATING,DRY or COOLING than FEEL.
7
Operation Instructions
1
TIMER mode
It is convenient to set the timer on with TIMER button when you go out in the morning
to achieve a comfortable room temperature when you get home. You can also set
timer off at night to enjoy a good sleep.
When the Remote
When the Remote
Control is ON,press
Control is OFF,press
the TIMER button to set
the TIMER button to
set a switch-on timer,
a switch-on timer,press
press again,the setting
again,the setting will be
will be cancel.
cancel.
Press UP and DOWN button to set time.
Time setting is 30-minutes.
Note: After setting the timer,check that TIMER INDICATOR lamp of
the indoor unit lights.
SLEEP mode
Normal-SLEEP& Comfortable-SLEEP(optional)
1.
Having press the SLEEP button for 3 seconds, SLEEP operation is
switched from Normal-SLEEP to Comfortable-SLEEP alternatively.
Used to set or cancel sleep operation.This function is invalid in fan
and dehumidify mode,This function is invalid in SUPER mode too.
Switches OFF the appliance automatically after 10 hours in Normal-
SLEEP mode.
Normal-SLEEP only
2.
While the unit is running,. Select the operating mode and then press
SLEEP button:the indoor fan speed operates at low speed.Switches
OFF the appliance automatically after 8 hours.
Comfortable-SLEEP note:
In this model,the temperature will automatically be adjusted with the body temperature, like the english
letter
set-temperature decrease together; and at the last stage of sleep, the body temperature will increase
V
at the first stage of sleep, the body temperature will decrease when our air-conditioner' s
when our air-conditioner' s set-temperature increase together. It will help you sleep more comfortably.
8
1
Maintenance
Front panel maintenance
Air filter maintenance
It is necessary to clean the air filter after using
it for about 100 hours.
Clean it as follows:
Turn off the appliance
first before disconnecting
from power supply.
Cut off the
power supply
a
Stop the appliance
and remove the
air filter.
Grasp position "a"
and pull outward to
remove the front panel.
a
1.Open the front panel.
Wipe with a soft and
dry cloth.
Use lukewarm water(below
104 f) to clean if the
appliance is very dirty.
2.Press the handle of the filter gently
from the front.
3. Grasp the handle and slide out the filter.
Use a dry and
soft cloth to
clean it.
Never use volatile substance
such as gasoline or
polishing powder to clean
the appliance.
Clean and re-install
the air filter.
If the dirt is conspicuous,
wash it with a solution of
detergent in lukewarm water.
After cleaning, dry well in
shade.
Never sprinkle water
onto the indoor unit
Dang
Elec
shoc
k!
erou
tric
s!
Close the front panel again.
b
b
Clean the air filter every two weeks
if the air conditioner operates in an
extremely dusty environment.
Reinstall and shut the
front panel.
Reinstall and shut the front
panel by pressing position "b" downward.
At the end of the season
At the beginning of the season
Make sure there are no obstacles blocking
the airflow around the air intake and air
outlet openings of the Indoor and Outdoor
Units
Set temperature to 86 f for about half a day
and perform the Cooling operation to dry
well the Unit's inside.
Dry the inside
of the unit.
Stop the unit operation and then
turn off the power switch for safety
Check the installation base for corrosion or rust.
ON
and for saving electric energy.
OFF
Make sure the earth
wire is not broken or
disconnected
Clean and reinstall the air filters.
Make sure the air filters are cleaned.
Clean both Indoor and Outdoor Units.
Turn on the power switch.
Remove batteries from the remote control .
Insert batteries into the remote controller.
9
1
Protection
Operating condition
Noise pollution
The protective device maybe trip and stop
the appliance in the cases listed below.
Install the air conditioner at a place that
can bear its weight in order to operate
more quietly.
Outdoor air temperature is over 75 f
HEATING
Outdoor air temperature is below -19 f
(-5 f for inverter models,it's optional)
Install the outdoor unit at a place where
the air discharged and the operation noise
would not annoy your neighbors.
Room temperature is over 80 f
Outdoor air temperature is over *110 f
(or below 32 f for inverter models)
COOLING
Room temperature is below 69 f
Do not place any obstacles in front of the
air outlet of the outdoor unit as it will increase
the noise level and possible malfunction
of fan motor.
Room temperature is below 64 f
DRY
* For Tropical (T3) Climate condition models, the
temperature point is 96 f instead of 96 f.
If the air conditioner runs in COOLING or DRY mode with
door or window opened for a long time when relative
humidity is above 80%,dew may drip down from the outlet.
Features of protector
Inspection
The protective device will work as follows.
After using for long time, the air conditioner
should be inspected on the following items.
Restarting the unit at once after operation
stops or changing mode during operation, you
need to wait 3 minutes.
Overheat of the power supply cord and plug
or even a burned smell.
Abnormal operating sound or vibration.
Water leakage from indoor unit.
Metal cabinet electrified.
Connect to power supply and turn on
the unit at once, it may start 20 seconds
later.
Stop the air conditioner if above trouble occurs.
It is advisable to have a detail inspection after
using it for 5 years even if none above occurs.
If all operation has stopped, press ON/OFF
button again to restart.
Timer should be set again if it has been
canceled.
Features of HEATING mode
Preheat
At the beginning of HEATING operation, the airflow from indoor unit is discharged 2-5
minutes later.
Afterheat
After the finishing of HEATING operation, the airflow from indoor unit is discharged 2-5
minutes.
Defrost
In HEATING operation the appliance will defrost (de-ice) automatically to raise efficiency.
This procedure usually lasts 2-10 minutes. During defrosting, fans stop operation.
After defrosting completes, it returns to HEATING mode automatically.
Note: Heating is NOT available for cooling only air conditioner models.
10
1
Troubleshooting
The following cases may not always be a malfunction, please check it before asking for service.
Analysis
If the plug is not properly plugged.
Trouble
If batteries in the remote controller exhausted.
If the protective device works to protect the appliance.
If the protector trip or fuse is blown.
Does not run
Are the intakes and outlets of the air conditioner
blocked
Is the temperature set properly
No cooling or
heating air
Is the air filter dirty?
If strong interference(from excessive static electricity
discharge, power supply voltage abnormality)presents,
operation will be abnormal. At this time, disconnect
from the power supply and connect back 2-3 seconds later.
Ineffective control
Does not operate
immediately
Changing mode during operation, 3 minutes
will delay.
don't run
This odor may come from another source
such as furniture, cigarette etc, which is
sucked in the unit and blows out with the air.
Peculiar odor
Caused by the flow of refrigerant in the
air conditioner, not a problem.
Defrosting sound in heating mode.
A sound of
flowing water
The sound may be generated by the expansion
or contraction of the front panel due to change
of temperature.
Cracking sound is
heard
Mist appears when the room air becomes
very cold because of cool air discharged
from indoor unit during COOLING or DRY
operation mode.
Spray mist from
the outlet
The unit is shifting from heating mode to defrost.
The indicator will lights go off within ten minutes
and returns to heating mode.
The compressor indicator(red) lights on
constantly,and indoor fan stops.
Air will not
immediately
blow out at the start of HEAT mode
The air conditioner is ready to blow out enough warm
air please wait(2~5 minutes )
The appliance will defrost automatically ,and mist
appears from outdoor.After defrosting ,it continues to
run automatically.
Stop
discharging
airflow for 5~10minutes
during HEATING operation
Don't
discharge
check the distance between the remote controller
and the unit.
Are the batteries exhausted? Replace them with new
ones,and repeat the operation again.
The remote
control
does not function correctly
11
1
Installation Instructions
Installation Diagram
Distance from ceiling
should be over 6
Distance from wall
should be over 6
Distance from the wall
should be over 6
Distance from floor
should be over 6 feet
over 20
Air intake distance from the wall
Should be over 12
Air intake distance from
the wall should be
over 12
over 12
NOTE
Above figure is only a simple presentation
of the unit, it may not match the external
appearance of the unit you purchased.
Installation must be performed in accordance with
the national wiring standards by authorized personnel only.
Very Important-Installation must done by a registered
qualified installer.(Refer warranty section at the back of this manual)
12
Installation Instructions
1
Front panel
Connecting of the Cabb
le
Wiring between the indoor and outdoor units:
Terminal (inside)
1) Remove the PCB cover from the indoor unit;
2) Refer to the wiring diagram attached to indoor unit
when connecting cords to indoor unit terminals;
3) Reinstall the PCB cover. Be sure that side B
is facing outside.
COVER
COVER
A side (before connect)
B side (after connect)
Cabinet
Select the best location
Location for Installing Indoor Unit
Installation Diagram
Where there is no obstacle near the air outlet and air can be
easily blown to every corner.
Indoor unit
Where piping and wall hole can be easily arranged.
Keep the required space from the unit to the ceiling and wall
according to the wiring diagram.
Where the air filter can be easily removed.
Keep the unit and remote control 3 feet or more apart from
television, radio etc.
Pipe length is
49 feet Max.
Outdoor unit
Keep as far as possible away from fluorescent lamps.
Do not put anything near the air inlet to obstruct it from air
absorption.
Where there is bearing wall to handle weight and decrease
vibration and noise.
Location for Installing Outdoor Unit
Outdoor unit
Where it is convenient to install and well ventilated; avoid
installing it where flammable gas could leak.
Keep the required distance apart from the wall.
Keep the outdoor unit away from a place of greasy dirt,
vulcanization gas exit or high salty seashore.
Avoid installing it at the roadside where there is a risk of
muddy water.
Pipe length is
49feet Max.
A fixed base so as not to increasing operation noise.
Where there is no blockage for air outlet.
Indoor unit
13
1
Installation Instructions
Indoor Unit Installation
1. Installing the Mounting Plate
Decide an installing location for the mounting plate according to the indoor unit location and piping direction.
Keep the mounting. plate horizontally with a horizontal ruler or dropping line.
Drill holes of 1" in depth on the wall for fixing the plate.
Insert the plastic plugs to the hole, fix the mounting plate with tapping screws.
Inspect if the mounting plate is well fixed. Then drill a hole for piping.
Line drops from here
Hook the line here
Mounting plate
Dropping line
holes for fixing
Note: The shape of your mounting plate may be different from the one above, but installation method is similar.
2. Drill a Hole for Piping
r
o
Wall hole sleeve
( hard polythene tube
prepared by user)
o
Decide the position of hole for piping according to the
location of mounting plate.
d
t
u
O
Drill a hole on the wall. The hole should tilt a little
downward toward outside.
1/4 "
(tilt downward)
Install a sleeve through the wall hole to keep the wall
tidy and clean.
3. Indoor Unit Piping Installation
Put the piping (liquid and suction pipe) and cables through the wall hole from outside or put them through
from inside after indoor piping and cables connection complete so as to connect to outdoor unit.
Decide whether saw the unloading piece off in accordance with the piping direction.(as shown below)
Piping direction
trough
Unloading
piece
4
1
3
Note: When installing the pipe at the directions
1,2 or 4, saw the corresponding unloading piece
off the indoor unit base.
Saw the unloading piece
off along the trough
2
After connecting piping as required, install the drain hose. Then connect the power cords. After connecting,
wrap the piping, cords and drain hose together with thermal insulation materials.
14
1
Installation Instructions
NOTE
Piping Joints Thermal Insulation:
Wrap the piping joints with thermal
insulation materials and then wrap
with a vinyl tape.
wrapped with vinyl type
The temperature of refrigerant circuit
will be high, please keep the
Thermal insulation
interconnection cable away from the copper tube.
Piping Thermal Insulation:
Large pipe
Thermal insulation
tube
a. Place the drain hose under the piping.
b. Insulation material uses polythene foam over 3/8" in thickness.
Note: Drain hose is prepared by user.
Power cord
Small
pipe
Drain pipe should point downward for easy drain flow.
Do not arrange the drain pipe twisted, sticking out or wave
around, do not immerse the end of it in water.
Power cord 1
(for heat-pump)
If an extension drain hose is connected to the drain pipe, make
sure to thermal insulated when passing along the indoor unit.
Drain hose
(prepared by user)
Defrost cable(for heat-pump)
Insert here
When the piping is directed to the right, piping, power
Cord and drain pipe should be thermal insulated and
fixed onto the back of the unit with a piping connector.
large
pipe
large
pipe
drain
hose
drain
small
hose
pipe
small
pipe
Hook here
Piping fixer
Base
Piping connector
Base
Base
A. Insert the pipe connector to the slot.
B. Press to hook the pipe connector onto the base.
Connecting the refrigerant lines between the indoor& outdoor units
Note that since the refrigerant metering device is located in the outdoor unit,both refrigerant
lines must be insulated with a minimum of 3/8" foam along the entire length.
Gently bend the line set stubs from the indoor unit to the desired location and the using 2 box
end or adjustable wrenches,remove the flare nuts from the indoor unit line stubs.The indoor
unit is charged with a dry gas.If you do not hear the release of pressure when removing the
flare nuts,it is possible that the evaporator section(indoor unit)has developed a leak and you
should contact your dealer for a replacement indoor unit.Note:Using a small amount of
vacuum pump oil on the male flare threads will ease installation.Snug the line set to the stubs
using the 2 wrenches-one wrench on the male fitting and one wrench on the female fitting.
Tighten flares tobelow torques:
Refrigerant Line Connection Torque Table
Flare Nut
1/4-3/8"
Tightening Torque
25 Ft.LBs(350 Kg.Cm)
40 Ft.LBs(560 Kg.Cm)
60 Ft.LBs(840 Kg.Cm)
110 Ft.LBs(1540Kg.Cm)
1/4-1/2"
1/2-3/4"
7/8-1 1/8"
15
1
Installation Instructions
4. Connecting of the Cable
Indoor Unit
Front panel
Connect the power connecting cord to the indoor unit
by connecting the wires to the terminals on the control
board individually in accordance with the outdoor unit
connection.
Terminal (inside)
Cabinet
Note: For some models, it is necessary to remove the cabinet to
connect to indoor unit terminal.
Indoor unit
Chassis
Outdoor Unit
1). Remove the access door from the unit by loosening
the screw. Connect the wires to the terminals on the
control board individually as the following.
2). Secure the power connecting cord onto the control
board with cable clamp.
Access door
Terminal(inside)
3). Reinstall the access door to the original position
with the screw.
4) Use a recognized circuit breaker for 24K.30K model
between the power source and the unit. A disconnecting
device to adequately disconnect all supply lines must be
fitted.
Outdoor unit
The figures in this manual are based on the external view of a standard model.
Consequently, the shape may differ from that of the air conditioner you have selected.
Caution:
1. Never fail to have an individual power circuit specifically for the air conditioner. As for the
method of wiring, refer to the circuit diagram posted on the inside of the access door .
2.Comfirm that the cable thickness is as specified in the power source specification.
(See the cable specification table below)
3.Check the wires and make sure that they are all tightly fastened after cable connection.
4. Be sure to install an earth leakage circuit breaker in wet or moist area.
Wire Gauge Requirements
Wire Gauge atDifferent Wire Lengths
Circuit
Amp
200ft
50ft
150ft
100ft
15
20
25
30
35
40
45
50
8
6
6
4
4
4
3
3
10
8
14
12
10
6
4
4
4
3
3
2
8
6
6
10
8
8
6
4
6
2
4
6
(Nec,105c/221 F Type Copper Conductors)
16
Installation Instructions
1
Outdoor Unit Installation
1.Install Drain Port and Drain Hose (for heat-pump model only)
The condensate drains from the outdoor unit when the unit operates
in heating mode. In order to protect the environment, install a drain
port and a drain hose to direct the condensate water. Just install the
drain port and rubber washer to the chassis of the outdoor unit, then
connect a drain hose to the port as the right figure shown.
Washer
Drain hose
(prepare by user)
Drain port
2. Install and Fix Outdoor Unit
Fix with bolts and nuts tightly on a flat and strong floor.
If installed on the wall or roof, make sure to fix the supporter well to prevent it
from shaking due to serious vibration or strong wind.
3. Outdoor Unit Piping Connection
Remove the valve caps from the 2-way and 3-way valve.
Connect the pipes to the 2-way and 3-way valves separately according to the required torque.
4. Outdoor Unit Cable Connection (see previous page)
Air Purging
The air which contains moisture remaining in the refrigeration cycle may cause a malfunction on the
compressor. After connecting the indoor and outdoor units, evacuate air and moisture from refrigerant
cycle using a vacuum pump, as shown below.
Vacuum pump
Indoor unit
Refrigerant flow direction
2-way valve
3-way valve diagram
3-way valve
connect to indoor unit
(6) Open 1/4 turn
(7) Turn to fully open the valve
valve cap
open position
spindle
(7) Turn to fully open the
valve
Service
port
(1) Turn
(8) Tighten
(1) Turn
(2) Turn
(8) Tighten
Valve cap
needle
(8) Tighten
Connect to outdoor unit
Valve core
service port cap
Note: To protect the environment, be sure not to discharge the refrigerant to the air directly.
17
Installation Instructions
Interconnection Cable
1
(1)Take off the cover for Interconnection cable of outdoor unit.
(2)Take off the block for Interconnection cable, then put the core of the power wire to the terminal and
fix it according to the diagrams pasted to indoor and outdoor unit separately.
(3)Fix the accessory cable with the Interconnection cable block.
(4) Confirm the fixing of the accessory cable is ok.
(5)Fix the cover for Interconnection cable on.
Diagram for installation of Interconnection cable
( please see the pasted diagram instruction on the body first)
Circuit Diagram
12K 18K 24K indoor and outdoor interconnection cable sketch map
Indoor Unit
Outdoor Unit
L
W L
W L
W
Connetting
outdoor unit
Connetting
power
Connetting
indoor unit
Cooling & Heating
Note: Some models are designed without the conneting terminal in indoor unit,please subject
to the connetion diagram of the product.
18
1
Installation Instructions
How to Purge Air Tubes
(1). Unscrew and remove caps from 2 and 3-way valves.
(2). Unscrew and remove cap from service valve.
(3). Connect vacuum pump flexible hose to the service valve.
(4). Start vacuum pump for 10-15 minutes until reaching a vacuum of 30" Hg absolutes.
(5). With vacuum pump still running close the low pressure knob on vacuum pump manifold. Then stop
vacuum pump.
(6). Open 2-way valve 1/4 turn then close it after 10 seconds. Check tightness of all joints using liquid
soap or an electronic leak detector.
(7). Turn 2 and 3-way valves stem to fully the valves. Disconnect vacuum pump flexible hose.
(8). Replace and tighten all valve caps.
Test Running
Connect to the power source, check if the function selection keys on the remote controller are working
properly.
Check if the room temperature adjustments and timer settings are working properly.
Check if the drain is open.
Check if there is any abnormal noise or vibration during operation.
Check if there is leakage of refrigerant.
ATTENTION:
If there is no power plug along with the air conditioner,The power cord should be connected to an air
switch ,whose current carrying capacity should be more than 20A and the minimum open-circuit
distance among the live polar pole,the neutral polar pole and the ground polar pole should be more
than 1".If any malfuctions,please cut off the supply by the air switch and contact the manufacturer
or its service agent.
The appliance shall be installed in accordance with national wiring regulations.
If the supply cord is damaged. It is better to be replaced by the manufacturer or its service agent or a
similarly qualified person in order to avoid a hazard.
NOTE
Please read this manual before installing and using it.
Do not let air enter the refrigeration system or discharge refrigerant when moving the air conditioner.
Test run the air conditioner after finishing installation, and record details of operation.
Type of fuse used on indoor unit controller for 7K,9K,12K 15K,16K,18K, 22K,24K,30K is 50T with
rating 3.15 A,250V;Type of fuse used on inverter outdoor unit controller for 7K,9K,12K is 61T with
rating 15 A,250V,for 18K,22K,24K is 65TS with rating 25A,250V.
The fuse for the whole unit is to be provided by the user according to the current at maximum power
input or use other over-current protective device instead.
Accessibility to the plug must be guaranteed even after the installation of the appliance to disconnect
it in case of need. If not possible, connect appliance to a double-pole switching device with contact
separation of at least 1 " placed in an accessible position even after installation.
Please make replacing with the special assembly purchasing from our factory or our
service center if something wrong with Interconnection cable.
The security out static air pressure for our products is 0.8-1.05 * standard pressure.
The biggest length for our connection pipe can be 49 feet. More refrigerant is
necessary for per foot if the length is over 21 feet.
Please do not place valuable things under the unit after installation.
19
Model:KFTHP-12-ID
Model:KFTHP-12-OD
Model:KFTHP-18-ID
Model:KFTHP-18-OD
Model:KFTHP-24-ID
Model:KFTHP-24-OD
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