International comfort products DLC4A User manual

421 02 9218 00 10/01/12
OWNER’S MANUAL
R−410A Ductless Split System
Air Conditioner and Heat Pump
Models: DLC4(A/H)−Outdoor Unit, DLF4(A/H)−Indoor Unit
Sizes: 9K, 12K, 18K, 24K, 30K and 36K
Please read the operating instructions and safety precautions carefully and thoroughly before installing and
operating your room air conditioner or heat pump.
TABLE OF CONTENTS
PAGE
SAFETY PRECAUTIONS 2...................................................................................
GENERAL 2................................................................................................
INDOOR / OUTDOOR UNIT PART NAMES 3...................................................................
REMOTE CONTROL AND FUNCTIONS 4−13...................................................................
CLEANING, MAINTENANCE AND TROUBLESHOOTING 14−15...................................................
NOTE TO EQUIPMENT OWNER:
Thank you for your purchase. Please read this Owner’s Information Manual carefully
before installing and using this appliance and keep this manual for future reference.
For your convenience, please record the model and serial numbers of your new
equipment in the spaces provided. This information, along with the installation data and
dealer contact information, will be helpful should your system require maintenance or
service.
UNIT INFORMATION
Model # _________________________________
Serial # _________________________________
INSTALLATION INFORMATION
Date Installed ____________________________
DEALERSHIP CONTACT INFORMATION
Company Name: ______________________________
Address:_____________________________________
____________________________________________
Phone Number:______________________________
Technician Name:_____________________________

OWNER’S MANUAL Ductless Split System −DLC4(A/H), DLF4(A/H)
2 421 02 9218 00
SAFETY PRECAUTIONS
PERSONAL INJURY, DEATH, OR PROPERTY
DAMAGE HAZARD
Failure to follow this warning could result in personal
injury, death, or property damage.
Read and follow all instructions and warnings, including
labels shipped with or attached to unit before operating
your new air conditioner.
!WARNING
Any time you see this symbol in manuals, instructions
and on the unit, be aware of the potential for personal injury.
There are three levels of precaution:
DANGER identifies the most serious hazards which will
result in severe personal injury or death.
WARNING signifies hazards that could result in personal
injury or death.
CAUTION is used to identify unsafe practices which would
result in minor personal injury or product and property
damage.
NOTE is used to highlight suggestions which will result in
enhanced installation, reliability, or operation.
PERSONAL INJURY, DEATH AND / OR PROPERTY
DAMAGE HAZARD
Failure to follow this warning could result in personal
injury, death or property damage.
Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire,
electrical shock, or other conditions which may cause
personal injury or property damage.
Consult a qualified installer, service agency, your
distributor or branch for information or assistance. The
qualified installer or service agency must use
factory−authorized kits or accessories when modifying
this product.
!WARNING
GENERAL
The high wall fan coil unit provides quiet, maximum comfort.
In addition to cooling and/or heating, the high wall fan coil
unit matched with an outdoor condensing unit will filter and
dehumidify the air in the room to provide maximum comfort.
IMPORTANT: The high wall fan coil unit should be installed
by authorized personnel only; using approved tubing and
accessories. If technical assistance, service or repair is
needed, contact the installer or local dealer or call
1−877−591−8908.
The high wall fan coil unit can be set up and operated from
the remote control (provided). If the remote is misplaced,
the system can be operated from the “Auto” setting on
the unit.
Operating Modes:
The high wall fan coil unit has five operating modes.
SAuto
SCooling
SDehumidification (DRY)
SFan Only
SHeating (heat pump models only)
Fan Only
In Fan Only mode, the system filters and circulates room air
without changing room air temperature.
Auto
In Auto mode, the system will automatically cool or heat the
room according to the factory setting in Auto Mode. The
setpoint temperature is not adjustable.
Heating
In Heating mode, the system heats and filters room air.
Cooling
In Cooling mode, the system cools, dries and filters room air.
Dehumidification (DRY)
In Dehumidification mode, the system dries, filters and
slightly cools room air temperature. This mode does not
take the place of a dehumidifier.
Remote Control
The remote control transmits commands to set up and
operate the system. The controller has a window display
panel that shows the current system status. The controller
can be secured to a surface when used with the provided
mounted remote control holder.

OWNER’S MANUAL Ductless Split System −DLC4(A/H), DLF4(A/H)
421 02 9218 00 3
Indoor / Outdoor Units
Size 09-36, Indoor/Outdoor Unit
A08294a
1. Front Panel Frame
2. Display Panel
3. Front Panel
4. Air Filter
5. Horizontal Airflow Louver
6. Manual Adjustable Vertical Airflow Louver
7. Remote Control
8. Room Temperature Sensor
9. Inter-Connecting Tubing
10. Control and Power Wiring to Indoor Unit
11. Service Valves
1
2
3
4
56
7
8
9
10
11

OWNER’S MANUAL Ductless Split System −DLC4(A/H), DLF4(A/H)
4 421 02 9218 00
Remote Control and Functions
Remote Control, Size 09-24
A12434
1. Remote Control Display
2. ON/OFF Button
3. MODE Button
4. Setpoint Clock, Timer Up (+) and Down (-) Buttons
5. Fan Speed
6. Horizontal Louver Swing Button
7. Clock Button
8. Timer ON Button
9. Dry Coil Button
10. Temperature Button
11. Timer OFF Button
12. Turbo Mode Button
13. Sleep Mode button
14. Light Button to Turn ON or OFF Display on Front Panel
1
23
4
56
78
9
10
11
12
13
14
Remote Control, Size 30-36
1. Remote Control Display
2. ON/OFF Button
3. MODE Button
4. Setpoint, Timer Up (+) and Down (-) Buttons
5. Fan Speed
6. Horizontal Louver Swing Button
7. Left/Right Louver Swing Button (Not available with these models)
8. HEALTH/SAVE Button (Not available with these models)
9. Dry Coil Button
10. Temperature Button (Not available with these models)
11. Timer Button
12. Turbo Mode Button (Not available with these models)
13. Sleep Mode button
14. Light Button to Turn ON or OFF Display on Front Panel
1
3
6
7
10
11
14
9
12
13
8
2
4
5
A12390

OWNER’S MANUAL Ductless Split System −DLC4(A/H), DLF4(A/H)
421 02 9218 00 5
Remote Control Display, Size 09−24
1
3
2
11
6
7
9
151413128
5
4
10
AUTO
COOL
DRY
FAN
HEAT
MODE DISPLAY
NOTE: Symbols shown in this manual are for the purpose of demonstration. During actual operation, only the relevant
symbols are displayed.
A12391
1. TRANSMISSION INDICATOR: Illuminates when
remote control transmits signals to the indoor unit.
2. This symbol appears when the unit is turned on by
the remote control, and disappears when the unit is
turned off.
3. FAN SPEED DISPLAY: Indicates the set fan speed.
AUTO is displayed when unit is running in AUTO
mode.
4. MODE DISPLAY: Indicates the current operation
mode “AUTO”, “COOL”, “DRY”, “FAN ONLY”, or
“HEAT”
5. SLEEP DISPLAY: Indicates unit is running in SLEEP
mode.
6. TEMPERATURE DISPLAY: Temperature setting
from 61_F (16_C) to 86_F (30_C) will be displayed.
If FAN mode is selected, there will be no temperature
displayed.
7. CLOCK DISPLAY: Indicates the current time (0 to 24
hours).
8. CLOCK INDICATOR: Displayed with time and is not
displayed when setting ON/OFF timer.
9. TIMER ON / TIMER OFF DISPLAY: ON is displayed
if TIMER ON is set. OFF is displayed if TIMER OFF
is set. ON OFF displayed if both ON and OFF timers
are set.
10. TURBO DISPLAY: Indicates unit is running in Turbo
Mode.
11. DRY COIL DISPLAY: Indicates unit is running in DRY
COIL mode where the fan continues to run after the
unit is shut off to dry the coil.
12. TEMPERATURE DISPLAY: Indicates if room
temperature or set point temperature is being
displayed on the front panel.
13. SWING DISPLAY: Sets louver position or set louvers
to continuously move for better air distribution.
14. LIGHT DISPLAY: Indicates if LED display on the front
panel is illuminated.
15. LOCK DISPLAY: Indicates if remote control is locked.

OWNER’S MANUAL Ductless Split System −DLC4(A/H), DLF4(A/H)
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AUTO
COOL
DRY
FAN
HEAT
Remote Control Display, Size 30−36 1
3
2
11
6
7
9
15
14 1312
8
5
4
10
MODE DISPLAY
NOTE: Symbols shown in this manual are for the purpose of demonstration. During actual operation, only the relevant
symbols are displayed.
SLEEP
1. TRANSMISSION INDICATOR: Illuminates when
remote control transmits signals to the indoor unit.
2. This symbol appears when the unit is turned on by
the remote control, and disappears when the unit is
turned off.
3. FAN SPEED DISPLAY: Indicates the set fan speed.
AUTO is displayed when unit is running in AUTO
mode.
4. MODE DISPLAY: Indicates the current operation
mode “AUTO”, “COOL”, “DRY”, “FAN ONLY”, or
“HEAT”
5. SLEEP DISPLAY: Indicates unit is running in SLEEP
mode.
6. TEMPERATURE DISPLAY: Temperature setting
from 61_F (16_C) to 86_F (30_C) will be displayed.
If FAN mode is selected, there will be no temperature
displayed.
7. Left/Right Louver Swing: Not available on these
models.
8. Health/Save: Not available on these models.
9. SETTING ON / OFF TIMES: 0.5 to 24 hours.
10. TURBO DISPLAY: Not available on these models.
11. DRY COIL DISPLAY: Indicates unit is running in DRY
COIL mode where the fan continues to run after the
unit is shut off to dry the coil.
12. TEMPERATURE DISPLAY: Not available on these
models.
13. SWING DISPLAY: Sets louver position or set louvers
to continuously move for better air distribution.
14. LIGHT DISPLAY: Indicates if LED display on the front
panel is illuminated.
15. LOCK DISPLAY: Indicates if remote control is locked.

OWNER’S MANUAL Ductless Split System −DLC4(A/H), DLF4(A/H)
421 02 9218 00 7
Unit Display
NOTE: The temperature readout is either setpoint or room temperature and will be replaced by an error code if there is a
malfunction. (9K to 24K Only)
Remote shown is for the size 9K to 24K remote.
NOTE: The display panel on the indoor unit can be turned on or off using the remote control. Press the Light button to turn
the display on and off. Some of the functions will appear on the display panel, on the remote control, or both.
A12434
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage.
Handle the control with care and avoid getting the
remote wet.
CAUTION
!
NOTE:The remote control is set from factory to display
temperatures in 5F. If 5C is desired, turn the remote OFF
and then press “MODE” and “−” buttons on the remote
simultaneously.
IMPORTANT: The remote control can operate the unit from a
distance of up to 25ft. (7.6m) as long as there are no
obstructions. This is one way communication only (from
remote control to fan coil).
The remote control can perform the following basic
functions:
STurn the system ON and OFF
SSelect operating mode
SAdjust room air temperature set point and fan speed
SAdjust airflow direction
Refer to the Remote Control Function section for detailed
description of all the capabilities of the remote control.
Battery Installation
Two AAA 1.5 v alkaline batteries (included) are required for
operation of the remote control.
To install or replace batteries :
1. Slide the back cover off the control to open the battery
compartment.
2. Remove old batteries if you are replacing the
batteries.
3. Insert batteries. Follow the polarity markings inside
the battery compartment.
4. Replace battery compartment cover.
A08299
NOTE:
1. When replacing batteries, do not use old batteries or a
different type battery. This may cause the remote control
to malfunction.
2.If the remote is not going to be used for several weeks,
remove the batteries. Otherwise battery leakage may
damage the remote control.
3. The average battery life under normal use is about 6
months.
4. Replace the batteries when there is no audible beep from
the indoor unit or if the Transmission Indicator fails to light.

OWNER’S MANUAL Ductless Split System −DLC4(A/H), DLF4(A/H)
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Set the Clock (Size 9K to 24K systems only. There is
not a clock function for the size 30K and 36K.
Before you start operating the air conditioner, set the clock
on the remote control as outlined below. The clock panel on
the remote controller will display the time regardless of
whether the air conditioner is in use or not.
Initial Setting of the Clock:
After batteries are inserted in the remote control, the clock
panel will display ”12:00”.
1. Push the CLOCK button once will flash.
2. Push the “+” or “−” button. Each time you press the
button, the time moves forward or backward by one
minute depending on which button you press.
If you push the “+” or “−” button continuously, the time
adjusts in increments of 10 minutes.
3. When the right time is achieved, press the CLOCK
button once to set the time. The will stop flashing.
4. To readjust the Clock, Press the CLOCK button on
the remote. The will flash. Repeat steps 1 through
3.
NOTE: Note: The time of the CLOCK must be set before the
AUTO−TIMER function will operate.
UNIT OPERATION HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Static electricity or other factors (voltage fluctuations)
can cause the remote control clock to reset. If your
remote control is reset (the time of ”12:00” flashing), set
the clock before starting the unit.
CAUTION
!
Remote Control Operation −Quick
Start
NOTE: When transmitting a command from the remote control
to the unit, be sure to point the control toward the LED display
on the front panel of the unit. The unit will confirm receipt of a
command by sounding an audible beep.
1. Turn the unit on by pushing the ON/OFF button.
2. Select the desired mode by pushing the mode button.
Size 9K to 24K
Size 30K to 36K
(Only for heating and cooling units)
(Only for heating and cooling units)
A08301
3. Select the temperature set point by pointing the
control toward the unit and pressing the “+” or “−”
buttons until the desired temperature appears on
screen. In AUTO mode the setpoint temperature is
not adjustable.
4. Select the desired fan speed by pressing the FAN
button to select desired fan speed.
NOTE: If unit is operating in Dry mode (X−Fan), low fan speed
will be displayed and the fan speed cannot be changed.
5. Set the airflow direction. When the unit is turned on,
the louvers default to the cooling or heating position.
The user can adjust the default louver position by
pushing the “SWING” button. The louver will start
to swing. If a stationary position is desired, push the
“SWING” button again.
Emergency Operation
If the remote control is lost, damaged, or the batteries are
exhausted, the AUTO button on the unit can be used to
temporarily operate the unit.
Open the front cover panel and press the AUTO button
once briefly when the system is off.
To stop emergency operation, push the AUTO button once.
The emergency operation can also be stopped by pushing
the “ON/OFF” button on the remote control.
A12433
The following occurs when the AUTO button is pushed:
SNo temperature will be displayed on display panel.
SUnit will run in FAN ONLY mode if return air
temperature is between 68_F (20_C) and 77_F
(25_C).
SUnit will run in HEATING if return air temperature is
less than 68_F (20_C).
SUnit will run in COOLING if return air temperature is
greater than 77_F (25_C).
SFan speed will be set to AUTO
SSWING will be on.

OWNER’S MANUAL Ductless Split System −DLC4(A/H), DLF4(A/H)
421 02 9218 00 9
REMOTE CONTROL FUNCTIONS
The remote control is the interface between the user and the
high−wall systems. Commands are entered by the user to
control the system. Any command that has been entered
with the remote control will remain in the memory until it is
changed by the user or the batteries are replaced.
LOCKING FUNCTION:
Settings can be locked by pushing the “+” and “−” buttons
simultaneously.
NOTE: When the remote control is locked, no commands
can be entered. To unlock remote control, press “+” and
“−” buttons simultaneously.
When entering commands, point the remote control in the
direction of the LED display on the front panel. The will
appear for a short period of time on the remote control when
the command is entered. The unit will only emit an audible
beep when the signals are received correctly.
OPER
ºF
ºC
HOUR
ON/OFF
:
Size 9K to 24K
A09635
On/Off Button
ºF
ºC
HOUR
ON/OFF
:
Size 9K to 24K
A09648
When the air conditioner is not in operation, the remote
control will display the last set point and time.
SPress the On/Off button to start the unit.
−The unit will start in the last operating mode and
set point. The “OPER” indicator will appear. The
“RUN” indicator on the display panel turns green.
SPress button On/Off to stop the unit.
−The “RUN” indicator light on the display panel will
turn red and the remote control will display the
setpoint and time. “OPER” will disappear.
NOTE: If the On/Off button is pressed too soon after a stop, the
compressor will not start for 3 minutes due to the inherent
protection against frequent compressor cycling.
When turning the unit ON and OFF, the Timer and Sleep
functions will be cancelled.
SELECTING THE OPERATING MODE
Use the “MODE” button to select one of the available
modes.
Size 9K to 24K
A09641 /A09628b
Size 30K to 36K
(Only for heating and cooling units)
The selected mode will be displayed on the remote control
and the appropriate light will illuminate on the display panel.
MODE Descriptions:
AUTO: No temperature will be displayed on the unit or the
remote control. Unit will operate as described in the
Emergency Operation section.
COOL and HEAT MODES: Press the “+” and “−” button to
select the temperature. The unit will confirm signal receipt
with a beep and the value of the set temperature is
displayed on the remote and on the front panel display.
The temperature can be set between 61_F (16_C) and 86_F
(30_C).
NOTE: In Cooling mode, if the temperate selected is higher
than the room temperature, the unit will not start. The same
applies for the Heating mode if the selected temperature is
lower than the room temperature.
DRY MODE: This is a dehumidification mode of operation.
The system will dry filter and slightly cool the room air
temperature. This mode does not take the place of a
dehumidifier.
In DRY mode, the indoor fan will operate continuously in
Low speed. The fan speed is not adjustable.
FAN MODE: This mode filters and circulates room air at the
selected fan speed. See figure below for selecting fan
speed.

OWNER’S MANUAL Ductless Split System −DLC4(A/H), DLF4(A/H)
10 421 02 9218 00
SELECTING THE FAN SPEED
AUTO
FAN
OPER
ºF
ºC
HOUR
ON/OFF
:
Low / Med / High
indicator
AUTO
A09649
The fan speed can be selected by pressing the “FAN”
button.
Fan Speeds: Low Medium High
NOTE: When the unit is on, the fan will run continuously in
cooling or heating. When in heating, there might be
situations where the fan will slow down or shut off to
prevent cold blow.
TURBO MODE: (Only available on sizes 9K to 24K)
The desired setpoint, either in heating or cooling, can be
achieved faster if TURBO mode is used. After selecting the
“HEAT” or “COOL” mode button, push the “TURBO” button.
This will force the unit to run at super high speed. When
the setpoint is satisfied, push the “TURBO” button again.
The unit will run at the selected fan speed.
When TURBO mode is running, the following is displayed
on the remote control:
OPER
ºF
ºC
HOUR
ON/OFF
:
TURBO
ICON
A09636
Displaying Setpoint or Room Temperatures on Front
Panel: (Only available on sizes 9K to 24K)
The setpoint temperature or room temperature can be
displayed on the front panel. Only setpoint temperature is
displayed on the remote.
ºF
ºC
HOUR
ON/OFF
:
Room
Temperature
Symbol
A09638
When the “TEMP” button is pushed once, the temperature
indicator (without thermometer) is displayed. This indicates
that the setpoint temperature is displayed on the front panel.
When the “TEMP” button is pushed a second time, a
thermometer is displayed inside the temperature indicator.
This indicates that the room temperature is displayed on the
front panel.
NOTE: If any other button is pushed on remote control, the
temperature will return to the setpoint temperature. Outdoor
air temperature is not available.
Using Dry Coil Function (X−Fan):
When operating in humid areas, hi−wall units have a DRY
COIL function that will allow the indoor fan to run for a
pre−determined amount of time (10 minutes) after the unit
is turned off (cooling or dry modes) to ensure that
additional moisture is removed from coil. Push the “X−FAN”
button to enable this feature. This will be displayed on
remote control.
OPER
ºF
ºC
HOUR
ON/OFF
:
Remote
Dry Coil
Display
Remote
Dry Coil
Display
Size 9K to 24K
Size 30K & 36K
A09637
To deactivate this feature, push the “X−FAN” button again.
Selecting the Horizontal Direction Louver
Position
When the unit is turned on, the louvers default to the cooling
or heating position.
If the louver position is not providing adequate comfort due
to room layout or where people are gathered, two options
are available to correct the situation:
Size 9K to 24K Systems
Setting the louvers in a stationary position
(other than default for heating and cooling):
The stationary position can be one of five (5) default
positions.
To change the louver position, press the “SWING“
button once. The icon is displayed on the remote.
OPER
ºF
ºC
HOUR
ON/OFF
:
Swing Icon
A09640
When the is displayed, the louver will swing
continuously between positions 1 and 5 as shown below.

OWNER’S MANUAL Ductless Split System −DLC4(A/H), DLF4(A/H)
421 02 9218 00 11
OFF
01 2 3 4
5678
A09634
If the “SWING” button is pushed again,the louver will
move to position 1. If position 2 through 5 is desired, push
the button repeatedly until the desired position (2
through 5) is displayed on remote control.
Setting the louvers to move continuously:
This setting allows the louvers to move continuously
between either positions 1 through 5, or between positions
6, 7, and 8.
Push the button once to have louvers swinging
between positions 1 and 5. If position 6, 7, or 8 is desired,
push the button repeatedly until the desired position
is displayed on the remote.
NOTE: Always use the remote control to adjust the
horizontal louver position otherwise, abnormal
operation may occur. If this occurs, turn the unit off and
then on again.
Sometimes, in the heating mode, when the
”SWING” button is pushed, the louvers will not start
moving right away. This is due to the fact that the fan
will not start running until the coil temperature is warm
enough to prevent discomfort to the user by blowing
cold air.
Size 30K and 36K Systems
The louver can be set to swing the full swing or be set to
a stationary position. The stationary position can be one of
(5) default positions or a position selected by the user.
The default setting allows the user to select the swing or a
stationary position.
To change the louver position, press the ’SWING”
button once. The icon will be displayed on the remote.
Swing Icon
Size 30K & 36K
The louver will swing continuously.
If the “SWING“ button is pushed again, the louver will
stop in its present position.
If the user prefers to select swing with (5) preset stationary
positions, follow the instructions below:
STurn OFF the remote control.
SSimultaneously press the “SWING” and “+”
button.
SWait 2 seconds.
STurn remote control on.
45
Pushed once, the louver will swing continuously. If the
button is pushed again, the louver will move to position 1.
If position 2 through 5 is desired, push the button repeatedly
until the desired position (2 through 5) is displayed on the
remote control.
Selecting Vertical Direction of the Louver
The vertical louvers can be adjusted manually to direct the
airflow to achieve the optimal comfort in the space.
A07543
Sleep Mode
This mode is used to conserve energy and can be used
when the unit is in the COOL, HEAT or DRY mode only.
Cool Mode
−Push the SLEEP button. The SLEEP display will
appear on the remote control.
OPER
ºF
ºC
HOUR
ON/OFF
:
A09644
−After 1 hour the set point will be raised by 1.8_F (1_C).
−After another hour, the set point will be raised by
another 1.8_F (1_C) and the fan will run in low speed.
−The SLEEP mode will be cancelled when the SLEEP
button is pushed again.
Heat Mode
−Same as cooling mode but set points will be lowered
by 1.8_F (1_C) and the HEAT icon will disappear from
the display panel.

OWNER’S MANUAL Ductless Split System −DLC4(A/H), DLF4(A/H)
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Timer Function (Size 9K to 24K Systems)
TIMER ON (to start the unit) and TIMER OFF (to stop the
unit) can be used separately or together. The clock on the
remote control must be set before using this function.
Timer ON only
ºF
ºC
HOUR
:
OPER
Only ON
is displayed.
ON
A09639
This function will allow the unit to start automatically at the
set time. The TIMER ON can be set while the unit is on or
off.
To set the TIMER ON function, perform the following:
1. Push the “TIMER ON” button once.
2. The clock indicator and time will not be displayed
on the remote control. The default “TIMER ON” time
(first time function is used) or the last time setting will
be displayed and “ON” will flash.
3. Push the “−” or “+” within 5 seconds until the desired
on time is displayed.
NOTE: Pressing the “−” or “+” will decrease or increase
the time in 1 minute increments.
Pressing the “−” or “+” continuously will decrease or
increase the time in 10 minute increments.
4. Push the “TIMER ON” again. The “ON” icon will stop
blinking and the time at which the unit will start is set.
The clock indicator and the time will be displayed
again.
The “TIMER ON” time will be stored in memory indefinitely
until it is cancelled by the user by pushing the “TIMER ON”
button or the remote control batteries are replaced.
If the unit is running and the “TIMER ON” set time is
reached, the unit will continue operating normally.
NOTE: When the unit is shut off by the user using the
“ON/OFF” button, and if the “TIMER ON” is set, the
following will be displayed on the remote control.
−Set Point
−Time
−Clock indicator next to time indicates TIMER ON is
set.
On the display panel, the operation light will turn red.
When the “TIMER ON” set time is reached, the display
on the remote does not change, but the unit will run as
indicated by the operation light on the front cover
turning green. To get display on the remote, push the
“ON/OFF” button once.
Timer OFF only
OPER
ºF
ºC
HOUR
OFF
:
Only OFF
is displayed.
A09642
This function will allow the unit to stop automatically at the
set time. The timer can be set while the unit is on or while
it is off.
To set the “TIMER OFF” function, perform the following:
1. Push the “TIMER OFF” button once.
2. The clock indicator and time will not be displayed.
“OFF” will be flashing.
3. Push the “−” or “+” button within 5 seconds until the
desired ON time is displayed.
NOTE: Pressing the “ −” or “+” will decrease or increase
the time in 1 minute increments.
Pressing the “−” or “+” continuously, will decrease or
increase the time in 10 minute increments.
4. Push the “TIMER OFF” button again, the “OFF” icon
will stop blinking and the time at which the unit will
turn off is set. The clock indicator and the time will
be displayed again.
The “TIMER OFF” time will be stored in memory indefinitely
until is is cancelled by pushing the the “TIMER OFF” button
or the batteries are replaced in the remote control.
If the unit is running and the “TIMER OFF” set time is
reached, the unit will turn off and the operation indicator light
on the front panel will turn red. The display on the remote
control will remain the same as when the unit was running.
To turn the unit on again, push the “ON/OFF” button twice.
The operation indicator light on the front panel will turn
green.
Timer ON and Timer OFF
ºF
ºC
HOUR
:
OPER
ON/OFF will
be displayed
ON/OFF
A09643
Use both functions as described in “TIMER ON” and
“TIMER OFF” sections to program the unit to turn on and
shut off at specified times. Times will be stored in memory
until cancelled by user or the remote control batteries are
replaced.
Timer Function (Sizes 30k and 36K Systems)
This function will allow the user to set the unit to run for a
number of hours and be off for a number of hours, on a
continuous basis. The time OFF and ON can be set from
0.5 hours to 24 hours in half hour increments, within a one
minute accuracy.
Timer ON or OFF
hours displayed
Size 30K & 36K
Setting the Timer ON Time
With the remote control and system OFF, press the “TIMER”
button. Within 5 seconds, use the “+” and “−” buttons to set
the TIMER ON hours. The range of hours is from 0.5 to 24

OWNER’S MANUAL Ductless Split System −DLC4(A/H), DLF4(A/H)
421 02 9218 00 13
hours, in half hour increments. Press the “TIMER” button
again to save the setting.
Setting the Timer OFF Time
With the remote control and system ON, press the “TIMER”
button within 5 seconds, use the “+” and “−” button to set
the Timer OFF hours. The range of hours is 0.5 to 24 hours,
in half hour increments. Press the “TIMER” button again to
save the setting.
NOTE:
1. Once the Time ON time is set to a number of hours,
and the Time OFF time is set to a number of hours,
the system will operate on and off at those set times.
It will continue until the hours ON and OFF are
changed or the timer function is turned OFF.
2. To Turn OFF timer function, simply press the “TIMER”
button again, clearing the timer function from the
remote control display.
Light Function
This function will allow the user to Turn ON or OFF the
display on the front panel.
Press the light icon to turn the indoor unit front panel ON
or OFF. The remote control will display the Light Icon as
shown below.
Light Icon
Size 30K & 36K
Size 9K to 24K
Light Icon
Time Delay
If the On/Off button is pressed too soon after a stop, the
compressor will not start for 3 minutes due to the inherent
protection against frequent compressor cycling. The unit will
only emit an audible beep when the signals are received
correctly.
Heating Features
If the unit is in the heating mode, there will be a delay when
the fan starts. The fan will start only after the coil is warmed
up to prevent cold blow.
Defrost Operation
In heating mode, if the outdoor coil is frosted, the indoor fan
and outdoor fan will turn off while system removes the frost
on the outdoor coil. “H1” will be displayed on the display
panel on the front cover of the unit.
The system will automatically revert to normal operation
when frost is removed from the outdoor unit, and “H1” will
disappear.
Auto Start
If the power fails while the unit is operating, the unit stores
the operating condition, and it will start operation
automatically under those conditions when the power is
restored.

OWNER’S MANUAL Ductless Split System −DLC4(A/H), DLF4(A/H)
14 421 02 9218 00
CLEANING, MAINTENANCE, AND TROUBLESHOOTING
ELECTRICAL SHOCK HAZARD
Failure to follow this caution may result in personal
injury or death.
Always turn off power to the system before
performing any cleaning or maintenance to the
system. Turn off the outdoor disconnect switch
located near outdoor unit. Be sure to disconnect
indoor unit if on a separate switch.
CAUTION
!
EQUIPMENT DAMAGE/OPERATION HAZARD
Failure to follow this caution may result in equipment
damage or improper unit operation.
Operating the system with dirty air filters may damage
the indoor unit and could cause reduced cooling
performance, intermittent system operation, frost
build−up on indoor coil or blown fuses.
CAUTION
!
Periodic Maintenance
Periodic maintenance is recommended to ensure proper
operation of the unit. Recommended maintenance intervals
may vary depending on the installation environment, e.g.,
dusty zones, etc. Refer to Table 1.
CUT HAZARD
Failure to follow this caution may result in personal
injury. The coil fins are very sharp. Use caution when
cleaning.
CAUTION
!
Cleaning the Coil
Clean the coil at the beginning of each cooling season, or
when necessary. Use a vacuum cleaner or a long−bristle
brush to avoid damage to the coil fins.
Air Filters
Remove and clean the air filters once a month.
NOTE: If air filters show signs of excessive wear or are torn,
they must be replaced. Contact your local dealer for
replacement filters.
1. Open front panel on unit.
2. Pull filters down to remove.
3. Vacuum filters.
4. Clean with warm water.
5. Shake filter to remove excess water and dry
thoroughly.
6. Replace filter by sliding filter behind front grille until
filter snaps in place.
7. Close front panel on unit.
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage.
When cleaning the front panel, do not use water
hotter than 105_F (40.56_C) and do not pour water
onto the fan coil. Do not use abrasive or petroleum
based cleaners as they may damage the front panel.
CAUTION
!
Indoor Unit Front Panel
To clean the front panel on the indoor unit, wipe the outside
with a soft, dry cloth. If necessary, a mild liquid detergent
can be applied and wiped off with a dry cloth.
Preparing for Extended Shutdown Period
Clean the filters and reposition them in the unit. Operate the
unit in Fan only mode for 12 hours to dry all internal parts.
Turn main power supply off and remove batteries from the
remote control.
System Operation Recommendations
The items outlined in the following list will help to assure
proper system operation:
SReplace both remote control batteries at the same time.
SPoint the remote control toward the unit display panel
when transmitting a command.
SKeep doors and windows closed while unit is operating.
SContact an authorized service representative if a
problem arises that cannot be easily resolved.
SDo not perform cleaning or maintenance activities while
unit is on.
SKeep display panel on unit away from direct sunlight and
heat as this may interfere with remote control
transmissions.
SDo not block air intakes and outlets on the indoor or
outdoor units.
Energy Saving Recommendations
The following recommendations will add greater efficiency to
the ductfree system:
SSelect a comfortable thermostat setting and leave it at
chosen setting. Avoid continually raising and lowering
the setting.
SKeep unit filter clean. Frequent cleaning may be
necessary depending on indoor air quality.
SUse drapes, curtains or shades to keep direct sunlight
from heating room on very hot days.
SDo not obstruct air intake on front panel.
STurn on air conditioning before indoor air becomes too
uncomfortable.
Troubleshooting
Refer to Table 2 before contacting your local dealer.

OWNER’S MANUAL Ductless Split System −DLC4(A/H), DLF4(A/H)
421 02 9218 00 15
Table 1—Periodic Maintenance
INDOOR UNIT EVERY MONTH EVERY 6 MONTHS EVERY YEAR
Clean Air Filter*
Change Remote Control Batteries
S
S
OUTDOOR UNIT EVERY MONTH EVERY 6 MONTHS EVERY YEAR
Clean Outdoor Coil from Outside
Clean Outdoor Coil from Inside†
Blow Air Over Electric Parts†
Check Electric Connection Tightening†
Clean Fan Wheel†
Check Fan Tightening†
Clean Drain Pans†
S
S
S
S
S
S
S
* Increase frequency in dusty zones.
{Maintenance to be carried out by qualified service personnel. Refer to the Installation Manual
Table 2—Troubleshooting
PROBLEM POSSIBLE CAUSE SOLUTION
Indoor unit emits a bad odor on
start−up
•Air filter dirty
•Output air still has odor after cleaning filter.
•Clean the air filter
•Contact your service representative.
You hear water flowing noise
when the unit is running
•This is normal and is the refrigerant flowing
through the system.
•No maintenance required
Indoor unit produces a mist
when the air conditioner is
running
•This is normal cooling and is caused by high
humidity and temperature in the room.
•No maintenance required. Mist should stop as
room is cooled down and the humidity is removed.
Wireless remote control does
not work
•Batteries are dead.
•Unit needs to be reset.
•See battery replacement section in this manual
and replace batteries.
•Turn off power to indoor unit. Remove plug from
wall and then reinsert plug. Restart unit.
Water leaks into room from
Indoor unit
•Condensing water has overflowed •Check indoor condensing drain or call your
representative.
Unit/System Does Not Work •To protect the unit upon an immediate restart
after a stop, the system controller will delay
the unit for 3 minutes before allowing the unit
to start back up.
•The circuit breaker has tripped or a fuse
has blown.
•Power failure.
•Error codes displayed
•Voltage is too low.
•After turning unit off, wait at least 3 minutes before
trying to restart.
•Reset the circuit breaker or replace the fuse with
the specified replacement fuse.
•Restart operation when the power is restored.
•Call your service representative.
•Call your service representative.
Cooling is Not Working
Properly
•The filter is blocked with dust.
•Temperature is not set properly.
•A window or door is open.
•The outdoor unit is obstructed.
•The fan speed is too low.
•The operation mode is in Fan instead of
Cool.
•Clean the air filter.
•Check the temperature and reset if necessary.
•Close the window or door.
•Remove the obstruction.
•Change the fan speed selection.
•Change the operating mode to Cool or reset the
unit.
Heating is Not Working
Properly
•The filter is blocked with dust.
•Temperature is set too low.
•A window or door is open.
•The outdoor unit is obstructed.
•Clean the air filter.
•Check the temperature and reset if necessary.
•Close the window or door.
•Remove the obstruction.
Unit Stops During Operation •The Off timer is not operating correctly.
•Error codes displayed
•Restart the operating mode.
•Call your service representative.
International Comfort Products, LLC
Lewisburg, TN 37091