Fedders HFC1009N2F, HFC1012N7F, HFE4018NDF, HFE1009NDF, HFE1012NDF Installation And Operation Manual
...
Installation & Operation Manual
Ductless Split Air Conditioner
23-23-0411N-001
For additional questions please call
1-217-347-6459
or e-mail: customerservice@fedders.com
TABLE OF CONTENTS
INSTALLATION
SAFETY PRECAUTIONS..........................................................1
WIRING DIAGRAMS ..............................................................2
PAR TS LIST .......................................................................... 3
SELECTING A LOCATION ......................................................4
INDOOR UNIT INSTALLATION
Mounting the wall bracket ......................................5
Drilling the tubing access hole ................................5
Removing the base cover ........................................6
Attaching the indoor unit to the wall bracket ......6
Wiring the indoor unit ............................................ 6
Cutting tubing and cables........................................7
Connecting the tubing to the indoor unit ..............7
OUTDOOR UNIT INSTALLATION
Locating the outdoor unit........................................8
Installing the outdoor unit ......................................8
Connecting wiring to the outdoor unit ..................9
Connecting tubing to the outdoor unit ..............10
Checking for refrigerant leakage ..........................10
Evacuating air from the tubing and indoor unit..10
Opening the service valves for operation ............10
Restraining the tubing............................................10
FINAL INSTALLATION
Re-installing the base cover ..................................11
Switching on the power supply ............................11
OPERATION
IMPORTANT SAFETY PRECAUTIONS .................................12
FEATURES ............................................................................12
REMOTE CONTROL OPERATION ........................................13
Starting the air conditioner....................................13
Setting the timer ....................................................14
Select mode ............................................................15
Select settings ........................................................16
MAINTENANCE
Cleaning the air filters............................................17
Supplemental air filter............................................17
Cleaning the cabinet ..............................................18
Changing remote control batteries .................... 18
TROUBLESHOOTING............................................................19
WARRANTY..........................................................................20
WARNING
This unit should only be installed by a qualified
HVAC technician in accordance with the
National Electrical Code and local codes and
ordinances.
Failure to follow these precautions could result
in electrical shock, fire, death or serious personal
injury.
ENGLISH
FRANÇAIS
ESPAÑOL
WARNING
INDOOR UNIT OPERATES ON LOW VOLTAGE (24VDC)
SUPPLIED BY THE OUTDOOR UNIT.
DO NOT CONNECT LINE VOLTAGE TO THE INDOOR UNIT.
WARNING
Electrical Shock Hazard
• This unit should only be installed by a qualified
HVAC technician in accordance with the National
Electrical Code and local codes and ordinances
• Failure to follow these precautions could result in electrical
shock, fire, death or serious personal injury
• Use copper conductors of correct wire gauge and protector
size only
Important Grounding Requirements
• Do not operate this air conditioner without proper time
delay circuit protection (circuit breaker or fuse). Refer to
serial plate for proper power supply requirements.
• This air conditioner requires a separate power supply on a
separate fused circuit
• To avoid possible electrical shock, air conditioner must be
properly grounded
WARNING
WARNING
CAUTION
1
Additional Safety Precautions
• Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance. The fumes can create a fire hazard or
explosion.
• Do not introduce objects in the air discharge area.
This could cause permanent damage to your unit.
•
Do not operate without filter
• Do not obstruct the air intake area of your air
conditioner, as this could cause overheating, thus
activating the unit’s security switch and shutting off
the unit
• Do not block air circulation to outside louvers of
cabinet
• Do not block air flow inside with blinds, curtains, or
furniture, or outside with shrubs, enclosures, or
other buildings
• Do not run the air conditioner with an outside
protective cover in place. This could result in fire or
mechanical damage within the air conditioner.
• Clean the air conditioner filter every two weeks to
avoid overheating caused by air obstruction
• Use two or more people to move and install air
conditioner. Failure to do so can result in back or
other injury.
This symbol indicates the
possibility of death or serious
personal injury
This symbol indicates the
possibility of personal injury
or property damage
BTU Voltage Voltage Max Fuse Power Source Signal
Evaporator Condenser Amps Wiring Gauge Wiring Gauge
9,000 24VDC* 115v 15 14 awg 18 awg (min)
12,000 24VDC* 230v 15 14 awg 18 awg (min)
Electrical Specifications
* Voltage to the Evaporator is supplied by the Condenser
IMPORTANT SAFETY PRECAUTIONS
2
WIRING DIAGRAMS
Cool only unit
Wiring diagrams
Below are wiring diagrams for both cool only and heat pump units
Heat pump unit
WARNING
INDOOR UNIT OPERATES ON LOW
VOLTAGE (24VDC) SUPPLIED BY
THE OUTDOOR UNIT.
DO NOT CONNECT LINE VOLTAGE
TO THE INDOOR UNIT.
WARNING
INDOOR UNIT OPERATES ON LOW
VOLTAGE (24VDC) SUPPLIED BY
THE OUTDOOR UNIT.
DO NOT CONNECT LINE VOLTAGE
TO THE INDOOR UNIT.
ENGLISH
LOW V OL T A GE (24V)
TO INDOOR UNIT
LINE VOL T A GE
POWER SUPPLY
LOW V OL T A GE (24V)
TO INDOOR UNIT
LINE VOL T A GE
POWER SUPPLY
Parts list
A number of installation parts have been packed with the indoor
unit. Please check the contents of the box with the list below.
3
PARTS LIST
Description Illustration
Wall bracket
Screws for mounting
wall bracket
Drain adapter
(heat pump models only)
Gasket
(heat pump models only)
Base leg dampers
Quantity
1
6
1
1
4
Purifying filters
Remote control
AAA batteries
(for remote control)
Remote control holder
2
1
2
1
4
Before beginning installation, consider the placement of both the
indoor and outdoor units. It is important to correctly measure the
distance the tubing will need to travel between the two units.
Select a location for the outdoor unit
• Make sure you do not block the discharge area of the outdoor
unit with plants or debris
• Do not install either unit near any source of heat, steam or
flammable gas
• Locate the unit in a location where it can be easily maintained
Select a location for the indoor unit
• Locate the indoor unit in a place where it will provide cool air
throughout the room
• Locate the indoor unit in a place where the unit’s airflow will
not be obstructed
• The wall that the indoor unit is mounted to must be
structurally sound and able to support the weight of the unit
• It is preferable to locate the indoor unit on an outside wall
where there will be access to adequate drainage or a drain
source
• Place the unit so that the air filter can be removed easily and
maintenance work can be performed without interference
•Maintain minimum distances from walls, ceiling, and floor
illustrated in figure 3 on page 5 of this manual
Maximum
allowable
elevation
between
indoor unit
and outdoor
unit is
16.5 feet.
Outdoor unit
Indoor Unit
Wall
Wall
Wall bracket
Oil trap
Roof top
111
112
Outdoor
unit
Wrap tubing
with tape and
insulation
Main
power
24VDC
power
Liquid line
Suction line
Indoor unit
Maximum
allowable
tubing length
between indoor
and outdoor
units is 32 feet
CAUTION
Tubing Line Length and Refrigerant Charge
Each indoor unit comes with a refrigerant charge that is
sufficient for use with tubing up to 16.4 feet.
If the required length of connecting tubing exceeds 16.4 feet,
add 0.23 oz/ft of refrigerant for each additional foot.
The maximum allowable tubing length between indoor
unit and outdoor unit is 32 feet.
CAUTION
Unit Elevation
If the outdoor unit is placed higher than the indoor unit, an oil
trap should be installed every 12 feet in the suction line.
The maximum allowable elevation between indoor and
outdoor is 16.5 feet.
SELECTING A LOCATION
ENGLISH
5
Mounting the wall bracket
• Secure the wall bracket directly to the wall and into wall studs
using screws provided as shown in figure 3
• Make sure the wall bracket is horizontally level when mounted
• If wall studs are not available, it is recommended to use a toggle
bolt or similar drywall anchor
• If you are mounting the bracket on a concrete wall, use anchor
bolts to secure the top of the bracket to the wall
• Do not overtighten the bottom two screws causing the bracket
to bend. There should be a .20 inch gap between the bracket
and wall
CAUTION
Make sure the wall bracket is level.
If the wall unit is not mounted level, condensate water will leak
from the unit and can damage walls and/or carpet underneath.
INDOOR UNIT INSTALLATION
113
Minimum 5.5”
to ceiling
Minimum 5.5”
to wall
Minimum 7”
to wall
Fasten wall bracket to wall studs with screws
Drill a 2.5” diameter tubing hole at either the right or the
left. The hole should be slightly slanted to the outdoor
side. Your application may vary. See figure 4 for different
tubing outlet location options.
Drill the tubing access hole
Drill a 2.5” diameter tubing
access hole to route the
tubing to the outdoor unit.
The hole should be slightly
slanted to the outdoor side.
A typical installation will use a
Right or Left back outlet as
illustrated in figure 3.
See figure 4 for different
configurations to suit your
application.
Left Bottom Outlet
Left Back Outlet
Left Outlet
Right Bottom Outlet
Right Back Outlet
Right Outlet
114
There should be a .20 inch gap
between the bracket and wall
Side view
6
ENGLISH
INDOOR UNIT INSTALLATION
Removing the base cover
Remove the base cover to access tubing and wire connections.
• Use a flat head screwdriver to un-latch the base cover tabs from
the indoor unit. The tab locations are indicated by ’triangle’
markings on the base plate.
• Do not twist the screwdriver to dislodge the base cover from the
indoor unit; doing so will damage the plastic part
115
Base cover tabs
Attaching the indoor unit to the wall bracket
•Wiring connections to the indoor unit must be completed before
attaching it to the wall bracket
• Hook the unit onto the hangers on top of the wall bracket
• Ensure that the unit is level
• Ensure that the drain hose, tubing, and connecting wires are
aligned and in the proper position
116
Hook the unit to the hangers on top
of the wall bracket
Wiring the indoor unit (24VDC)
Connect the wires to the indoor unit by opening the decorative
front grille and following these steps:
• Remove the screw that secures the control box cover
• Connect the wiring as shown on the wiring diagrams on page 2
(a wiring diagram can also be found on the unit)
•Route the wiring from the back and up through the opening in
the front as shown in figure 7
• Ensure all terminals are securely tightened
117
118
Route wire through here
and up to the front
Wire from the back and
through this opening
Control box cover
Front view
Rear view
7
INDOOR UNIT INSTALLATION
Connecting the tubing to the indoor unit
• Sufficiently tighten the flare nut with fingers, then tighten the
flare nut with torque wrench according to the table in figure 9
• Wrap all exposed tubing with tape. Do not wrap tubing that
will be located inside the unit.
• Pass the tubing, drain hose and connecting wire through the
wall with the drain hose on the bottom
• Make sure all tubing, drain hose, and connecting wire angle
downwards as they pass through and exit the wall
Use caution
when bending
Tubing, drain hose and
connecting wire
Tape
Tape
Connecting wire
Suction line
Insulation
Drain tubing
Liquid line
1110
119
1111
Liquid line and suction line should both be
insulated. Drain tubing outside the unit should also
be insulated.
Do not wrap tubing
that will be located
inside the unit
Tube diameter Torque lb. ft. (N.m.)
1/4” 9.36 - 14.23
(6.35 mm) (12.7 - 19.3)
1/2” 36.06 - 45.00
(12.70 mm) (48.9 - 61.0)
3/8” 26.25 - 32.75
(9.52 mm) (35.6 - 44.4)
Cutting Tubing And Cables
• Measure the distance between the indoor and outdoor units
• Cut tubing about 10% longer than the measured distance
• Cut electrical wires at least 6.5 feet longer than the measured
distance.
CAUTION
Remove burrs from the edges of the cut tubing. If burrs are
not removed, they may cause refrigerant leakage when in
operation.
CAUTION
Any bend in the tubing must have a minimum radius of 4”
(100mm) to prevent leakage. Bend tubes with caution.
Do not remove the flare nut from the tubing in the indoor unit
until you are ready to connect it to the outdoor unit.
8
OUTDOOR UNIT INSTALLATION
Locating the outdoor unit
• Locate the outdoor unit where the air flow around it will not
be obstructed
• Check that the base is level and does not exceed the maximum
slope of five degrees
• Secure the unit to a base with anchor bolts to reduce
vibrations and noise
• Allow adequate space to access the unit for service and
maintenance
• Maintain a minimum distance around the unit as shown in
figure 12
• Do not install the unit near a heat source, steam source or
flammable gas
• Heatpump units should be mounted above the snow line,
if possible
Installing the outdoor unit
• Attach the base leg dampers by sliding the damper slots onto
the base of the outdoor unit as shown in figure 13
• Attach the drain gasket and drain adapter to the base pan of
the unit before you secure the unit (applicable to heat pump
models only) as shown in figure 13
• Fasten the unit onto the base
1112
1113
At least 24”
At least 16”
At least 4”
At least 24”
Base leg dampers
Drain adapter (heat pump models only)
At least 24”
ENGLISH
9
OUTDOOR UNIT INSTALLATION
1114
1115
1116
Connecting wiring to the outdoor unit
• The installer shall check available power to make certain it
matches the unit (Name Plate Rating) and that constant voltage
can be maintained to the unit. Unsatisfactory performance
would otherwise result. The local power company should be
contacted regarding problems or questions concerning power
supply.
• Install a line service disconnect switch within sight of the
condensing unit. The line voltage service wiring for the
condensing unit should include a fused disconnect switch.
• Use correct wire size and fuse size. To ensure that adequate
voltage will be available at the condensing unit, the line voltage
service wiring must be of adequate size. Minimum
recommended wire ampacities and maximum fuse sizes are
listed on the unit name plate.
•Two holes are provided in the control box
a. One is for the connection of the line voltage conduit
or cable. The hole is sized for 3/4" conduit.
b. One is for low-voltage wiring. Refer to the wiring
diagram attached to electrical box cover for connection.
•Be sure to ground the condensing unit by securing the ground
wire to the grounding lug inside the control box
•Be sure to follow National Electrical Code and all local codes
WARNING
Electrical equipment should be installed by a qualified, licensed
electrician. Improper electrical hook-up may damage
equipment, can create a hazard, cause personal injury or death,
and will void the warranty.
Control box
knockouts
Service cover
Line level
Ter minal block
Low voltage
Ter minal block
Grounding screw
Screws
Lock nut
Low voltage
line (24VDC)
Connect to
indoor unit
Line Level
Connect to
power supply
WARNING
Indoor unit operates on low voltage (24VDC) supplied by the outdoor unit.
DO NOT CONNECT LINE VOLTAGE TO THE INDOOR UNIT. SEE WIRING DIAGRAMS ON PAGE 2.
10
Restraining tubing
• Wrap the tubing connection to the unit with insulation and
seal it with tape
• You may connect additional drain hose. The end of the drain
outlet should not touch the ground.
• Wrap the connecting tubing, drain hose and wires with tape
from bottom to the top, and secure them to the wall as
shown in figure 19
CAUTION
Ensure that all the tubing and wiring are
connected properly and securely, before turning
the power On.
1119
Drain hose
Clamp
Checking for refrigerant leakage
• Connect a manifold gauge to the outdoor unit gas line port
• Use dry nitrogen with trace refrigerant when checking for
leakage
• Open the low pressure valve of the manifold gauge until the
meter reads steady at about 150-200 psig (10.32-13.8 bar)
• Test for refrigerant leakage especially around the tubing
connections with a refrigerant-leak detector
• If leakage was found, retighten the connector with a torque
wrench and repeat the test
• Upon completion of the leak test, purge nitrogen
Evacuate air from the tubing and indoor unit
Connect vacuum pump to unit through manifold gauges.
It is necessary to remove all air from the refrigeration cycle, as
this air contains moisture, which may cause a malfunction or
reduce efficiency of the compressor.
Opening the service valves for operation
• Unscrew the caps on the 2-way and 3-way valves
• After all lines are installed and leak tested, set both the liquid
and gas line valves to fully open position with the Allen Key
for the unit operation, as shown in figure 18
• Reinstall the cap and torque to the specified
value as shown below
1118
Flare nut size Torque (N.m.)
1/4” 12.7 - 19.3
3/8” 35.6 - 44.4
1/2” 48.9 - 61.0
Use allen key to
open fully for
unit operation
Allen key
Cap
WARNING
Only licensed HVAC professionals are permitted by law to
perform the operations below.
Connecting tubing to the outdoor unit
• Align the center of the tubing and sufficiently tighten the
flare nut with fingers
• Tighten the flare nut with wrench
1117
Liquid line
Suction line
CAUTION
Do not overtighten the flare nut. This can damage the threads
and cause leakage.
FINAL INSTALLATION
ENGLISH
11
1120
1121
1122
Slightly bend the base cover in the center and
press both end tabs onto the indoor unit.
Press the five front tabs up and onto the unit.
You will hear a ‘snap’ when the tab is fastened.
Push the two rear tabs back and up to lock the
base cover onto the wall bracket.
Re-installing the base cover
• Slightly bend the base cover in the center and press both tabs
into the indoor unit as shown in figure 20
• Snap closed the other three tabs by pressing onto the unit and
towards the wall
•All tab locations are indicated by embossed triangles as shown in
figure 21
• Push the last two tabs into the indoor unit
• Push the triangles towards the wall to lock the tabs into the wall
bracket as shown in figure 22
• Ensure there is no bulging on the base cover after installation
Switching on the power supply
• Turn the main switch on the outdoor unit to ON
• Operate the Indoor unit at Cooling or Heating mode (if
applicable) for fifteen minutes or more
• Check operation
FINAL INSTALLATION
12
SAFETY PRECAUTIONS
Safety precautions
• Please read the operating instructions and follow all
instructions carefully before operating the air
conditioner to help ensure your safety
WARNING
•We recommend that you have a qualified
technician install your air conditioner in accordance
with the installation instructions provided
• Keep this manual for future reference as it
contains important operating and safety
instructions
• All wiring must conform to local and national
electrical codes
• To avoid possible electrical shock, you must ground
your air conditioner
• This air conditioner requires a separate power
supply on a separate fused circuit
• Call for service immediately if a fuse blows or a
circuit breaker trips frequently
WARNING
Additional Safety Precautions
• Do not store or use gasoline or other
flammable vapors and liquids in the vicinity of
this or any other appliance. The fumes can
create a fire hazard or explosion.
• Do not introduce objects in the air discharge
area. This could cause permanent damage to
your unit
•
Do not operate without filter
• Do not obstruct the air intake area of your air
conditioner, as this could cause overheating,
thus activating the unit’s security switch and
shutting off the unit
• Do not block air flow inside with blinds,
curtains, or furniture, or outside with shrubs,
enclosures, or other buildings
• Do not run outdoor unit with any type of cover
in place. This could result in fire or mechanical
damage within the air conditioner.
• Clean the air conditioner filter every two
weeks to avoid overheating caused by air
obstruction
ENGLISH
WARNING
CAUTION
This symbol indicates the
possibility of death or
serious personal injury
This symbol indicates the
possibility of personal
injury or property damage
Features
Air intake
Brings room air into the unit.
Air discharge
Discharges conditioned air into the room.
Air outlet adjustable louver
Swings up and down to direct airflow
around the room.
Onboard temperature display
and mode indicator
Displays the set temperature and indicates
mode of operation.
Front grille
Covers the air intake and filter area.
Lift up the front grille to access the air
filters, supplemental air filters (optional),
and Auto control switch.
Air intake
Air discharge
Air filters
Supplemental
air filters
(optional)
Front grille
Air outlet
adjustable louver
Onboard temperature display and mode indicator
1123
1124
Cool Mode
Dry Mode
Heat Mode
Fan Mode
Smart Air
Transmit
Swing
Temp/ Timer
Timer (On)
Timer (Off)
Fan Speed
On/Off
Temperature / Timer
Mode
Swing
Smart air
Fan
Timer
Re-Transmit*
REMOTE CONTROL
13
NOTE: To display the temperature in Celsius, press both
Temperature/Timer buttons at the same time.
Remote control keypad
Remote control display
Remote control
Many of the features of your air conditioner are only accessible
by remote control.
NOTE: When you use the remote control, point it directly at
the receptor on the indoor unit. The maximum
effective distance between the remote control and
the receptor is about 27 feet. The unit beeps once to
confirm that the signal has been received from the
remote control.
Auto control switch
1126
1125
Remote
control mode
Auto control
mode
7
8
9
10
11
16
1
2
3
4
5
6
6
7
8
9
10
11
12
13
14
15
16
17
18
19
13
12
14
15
1
2
3
4
5
17
18
19
Auto control switch
If the remote control does not work or you have misplaced
your remote control, you can operate the unit in auto mode
by moving the Auto Control switch to the “A” position under
the front grille.
This setting will operate the air conditioner in the following
manner:
If room temperature rises above 75° F, unit will operate in
cool mode.
If room temperature is between 68° F and 75° F, unit will
operate in dry (dehumidify) mode.
If room temperature falls below 68°F, unit will operate in
heat mode (heat pump models only).
* The Re-transmit button will
re-send your last remote control command
14
Remote keypad
Remote display
Onboard display
• Press the On/Off button on the remote control
• The air outlet adjustable louver will start rotating
Then: Select Mode (page 15)
Then: Select settings: Fan speed, adjustable louver
position (page 16)
OPERATION
Starting the air conditioner
Setting the timer
Timer button
Adjust Timer using
these buttons.
Using the timer, you can turn your air conditioner on or off at
preset times.
Setting the Timer to Start the Unit
Select the desired hour for the air conditioner to start operating.
The air conditioner will continue to be in OFF mode until the timer
activates it.
• With unit running, select desired operation mode and
temperature, then turn unit off
• Press the Timer button to activate Timer
• Press the Hour Selector button. Each time the button is
pressed, the timer will increase or decrease in one hour
increments
• The yellow onboard indicator light, on the indoor unit, lights
up when the timer operation is set
Setting the Timer to Stop the Unit
•While the unit is running in the desired operation mode and
temperature, press the Timer button to activate Timer
• Press the Hour Selector button to increase or decrease time in
1 hour increments
• The yellow onboard indicator light, on the indoor unit, lights
up when the timer operation is set
NOTE:
To cancel the timer setting, just press the timer
button on the remote again. The yellow LED will
turn off, indicating the timer function is canceled.
ENGLISH
15
Select mode
MODES
Cool Mode
• Turn on your air conditioner by pressing the
On/Off button on the remote control
• Press the Mode button until cool mode is
selected on the remote control display. The
onboard display’s blue indicator will come on.
• Set the temperature by pressing the
temperature buttons to lower or raise the set
temperature
Dehumidify Mode
• Turn on your air conditioner by pressing the
On/Off button on the remote control
• Press the Mode button until dehumidify mode
is selected on the remote control display. The
onboard display’s green indicator will come
on.
NOTE:
Fan speed is always on low in dehumidify mode.
Heat Mode (heat pump models only)
• Turn on your air conditioner by pressing the
On/Off button on the remote control
• Press the Mode Selector button until heat
mode is selected on the remote control
display. The onboard display’s red indicator
will come on.
• Set the temperature by pressing the
temperature buttons to raise or lower the set
temperature
• Defrost Mode: If ice forms on the outdoor
coil, the unit will automatically go into
Defrost mode. When the unit is in defrost
mode the red LED will flash on and off. Heat
will not be available until Defrost is complete.
Fan Mode
• Turn on your air conditioner by pressing the
On/Off button on the remote control
• Press the Mode button until the Fan mode is
selected on the remote control display
When in Cool
mode, the blue
LED will shine.
When in Dry mode,
the green LED will
shine.
When in Heat mode,
the red LED will
shine.
When in Defrost
mode, the red LED
will blink.
Remote keypad
Remote display
Onboard display
Mode
1
2
3
1
2
1
2
3
1
2
Low
Fan
Med
Fan
High
Fan
16
SETTINGS
Select Settings
Your air conditioner has three adjustable settings:
Fan Speed, Swing (air direction), and Smart Air (memory)
Low
Fan
Med
Fan
High
Fan
Auto
Fan
Smart Air (memory) setting
Allows you to save current preferred settings into memory and reactivate them
with one button.
• Press the Power On/Off button to turn on
the unit
• Press the Mode button and select the
desired operation mode, temperature and
vane position
• Press the Smart Air button twice to save
the setting into memory. The display will
show “IF”.
• To recall the saved setting, press the Smart
Air button once. There will be a five second delay before the stored setting begins.
Swing (air direction) setting
You can direct the air flow from your air
conditioner into the room using the Swing
button. You can also continuously sweep
the air up and down.
Swing Button
• Turn on your air conditioner by pressing on
the Power On/Off button on the remote
control
• Press the Swing button to move the air
outlet adjustable louver between
horizontal and vertical positions
NOTE: The default setting for cool and
dehumidify modes is horizontal and for
heat mode the default setting is vertical.
Fan Speed setting
While the unit is running, press the Fan
Speed button to set the fan speed on low,
medium, high or auto.
When the auto fan setting is selected while
the air conditioner is in Cool mode, the fan
speeds will change automatically as the
temperature in the room changes
NOTE: The fan setting is not applicable to
Dehumidify mode.
The chart below identifies the different fan
speeds as they are displayed on the remote control and the indoor unit.
Fan Speed
Remote
display
Onboard
display
Air outlet
adjustable louver
Remote keypad
Remote keypad
Remote display
Remote keypad
Remote display
Onboard display
ENGLISH
Cleaning the air filters
Dirty air filters will cause a reduction of airflow, which in turn
causes the unit to overload, reducing cooling or heating performance while consuming more electricity.
Clean the filters every two weeks.
•Turn the unit off.
• Remove the air filters by raising the front grille and pulling
the filters out of the unit.
•Wash the filters in hot soapy water, rinse and shake dry.
• Replace the filters, with the front of the filter toward you.
NOTE: To dry the filter thoroughly, run your unit for a few min-
utes. Remember, only a clean filter works properly and
delivers top efficiency at every setting.
NOTE: Failure to keep air filter clean will result in poor air circu-
lation.
NOTE: Proper use and care of your air conditioner will help
ensure longer life of the unit.
It is recommended to have an authorized servicer annually
inspect and clean the coils and blow out condensate water
passages with compressed air. A clogged drain hose can
leak condensate water and damage property. Expense of
annual inspection is the consumer’s responsibility.
17
MAINTENANCE
CAUTION: DO NOT operate without filter.
This can render the unit inoperative.
Supplemental Air Filter (not available on all models)
It is recommended to replace the Supplemental Air Filters every 3
months or when they are very dirty.
• Remove the air filters and then remove the supplemental air
filters from the unit every 3 months or if they are very dirty or
worn out.
• Reinstall new supplemental air filters.
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Cleaning the cabinet
• Clean the air conditioner cabinet with a damp cloth
and wipe it dry
• Do not use harsh solvents or cleaners
• Do not use water above 104° F for cleaning, as this will cause
discoloration and deformation
• Do not splash or spray water onto the unit as this may cause a
short circuit
Removing the Grille
•Open the grille and remove two Grille Locks beside the
grille hinges
• Lift the grille out of the indoor unit
18
MAINTENANCE
Changing remote control batteries
• With the back of the remote control facing you, slide and lift out the battery cover
• Place two new “AAA” size batteries into the battery compartment
• Slide the battery cover back into position
Grille Locks
WARNING
• Use only AAA or IEC R03 1.5V batteries
• Remove the batteries if the remote controller is not used for a
month or longer
• Do not attempt to recharge the supplied batteries
• Both batteries should be replaced at the same time
• Do not dispose of the batteries in a fire as they may explode.
• Do not mix old and new batteries
• Do not mix alkaline, standard (carbon - zinc), or rechargeable
(nickel-cadmium) batteries
• Do not install the batteries with the polarity (+/–) reversed
• Keep batteries and other items that could be swallowed away
from young children. Contact a doctor immediately if an
object is swallowed.
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ENGLISH
Changing The Transmitter Batteries
Remote Control
Batteries
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TROUBLESHOOTING
Occurrence
Air conditioner will not operate
Possible cause
House fuse blown or circuit breaker
tripped
Remote control batteries are discharged
Control circuit malfunction
Solution
Reset circuit breaker
Replace batteries
Contact installer
Water dripping inside Improper installation or
clogged drain tube
Contact installer
Water draining outside Unit is removing moisture from
humid room
This is normal during humid days
Noise when unit is cooling Air movement sound The sound of rushing air is normal. If too
loud, use a lower fan setting.
Vibration — poor installation Contact installer
Not cooling efficiently Dirty air filters Clean filters
Air conditioner compressor does
not run for three minutes after
restart
Compressor protection circuit prevents
compressor from running for three
minutes after restart
This is normal. Wait three minutes before
restarting.
Fan speeds up in cooling mode
during cooling operation
Indoor coil defrosting This is normal during humid days
Outdoor unit stops functioning
for approximately 15 minutes
(heat pump models)
Unit is melting ice that has formed on
the outdoor coil
This is normal
Troubleshooting
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