CMNA DLFSHA Owner's Manual - User Manual

Full Text Searchable PDF User Manual

Specifications subject to change without notice.

TABLE OF CONTENTS

PAGE

A NOTE ABOUT SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . .   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
PART NAMES AND FRONT DISPLAY CODES . . . . . . . . . .   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
FUNCTION BUTTONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REMOTE CONTROL  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
REMOTE CONTROL FUNCTIONS . . . . . . . . . . . . . . . . . . . .   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
CLEANING, MAINTENANCE, AND TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

DLFSHA

OWNER’S MANUAL

High Wall Ductless System - Sizes 09 to 36

NOTE TO EQUIPMENT OWNER:

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:______________________

Specifications subject to change without notice. 32802000102

A NOTE ABOUT SAFETY

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 could 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.

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 filters and dehumidifies

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.
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:

• FAN Only
• AUTO
• HEATING (heat pump models only)
• COOLING
• DEHUMIDIFICATION (DRY)

Fan Only

In the

FAN Only

mode, the system filters and circulates the room air

without changing room air temperature.

Auto

In the

AUTO

mode, the system automatically cools or heats the

room according to the user-selected set point. mode, the system
automatically cools or heats the room according to the user-selected
set point.

NOTE: Auto mode is recommended for use on Single Zone
applications only. Using Auto changeover on multi-zone
applications could set an indoor unit to STANDBY mode,
indicated with two dashes (--) on the display, which will turn off
the indoor unit until all the indoor units are in the same mode
(Cooling or Heating). Heating is the system's priority mode.
Simultaneous Heating and Cooling is not allowed.

Heating

In the

HEATING

mode, the system heats and filters the room air.

Cooling

In the

COOLING

mode, the system cools, dries and filters the room air.

Dehumidification (DRY)

In the

DEHUMIDIFICATION

mode, the system dries, filters and

slightly cools the room air temperature. This mode prioritizes air
dehumidification but it does not take the place of a dehumidifier.

Wireless Remote Control

The remote control transmits commands to set up and operate the
system. The control has a window display panel that displays the
current system status. The control can be secured to a surface when
used with the mounting bracket provided.

Wired Remote Control (Optional)

Refer to the Wired Controller manual.

24V Interface (Optional)

Allows the control of the Ductless System with a third party thermostat.

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, or 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.
Read and follow all instructions and warnings, including
labels shipped with or attached to unit before operating your
new air conditioner.

WARNING

32802000102 Specifications subject to change without notice.

PART NAMES AND FRONT DISPLAY CODES

Fig. 1 — Part Names and Display Codes

“ ” when freeze protection is turned on

“ ” for 3 seconds when:

Remote Control

Remote Holder

“ ” for 3 seconds when:
• TIMER ON is set
• SWING, TURBO, or SILENCE features are turned on

• TIMER OFF is set

“ ” when defrosting

“ ” when the anti-cold air feature is turned on

“ ” when the unit is self-cleaning

Display Code

Legend

Functional Filter

Louver

Front Panel

Display Window

In the FAN mode, the unit displays the room temperature.

In other modes, the unit displays your temperature setting.

SWING, TURBO, or SILENCE features are turned off

Specifications subject to change without notice. 32802000102

FUNCTION BUTTONS

IMPORTANT: Before you begin using your new air conditioner, familiarize yourself with the remote control.

Fig. 2 —Function Buttons

NOTE: New Remote Controller starting on production of week 1 year 2018 (serial number V180140000). For advanced

functions, refer to the RG58F1(2H)/BGEFU1 Wireless Remote Controller’s Service Manual.

ON/OFF

Button

SET Button

LED/BUZZER Button

Turns the unit on or off

F AN SPEED

FAN SPEED

Select fan speeds in
the following order:

AU%

100%

20%

60%

80%

40%

80%

20%.

100%.

Adjust

Press the Adjust
or button to increase
/decrease the fan
speed in

increments.

Press Adjust
or to increase/decrease
the fan speed in

increments.

ECO/GEAR Button

Starts and stops ECO feature
Press and hold down this
button for 2 seconds to
activate the GEAR function.

Starts and stops the louver
movement.
Press this button, the horizontal
louver swings up and down
automatically. Hold down this
button for 2 seconds, the
vertical louver swings left
and right automatically.

Scrolls through operation
functions as follows:

Turns indoor unit s LED
display and air conditioner
buzzer on and off, which
creates a comfortable and
quiet environment. Under
this mode, the display
illuminates for 10 seconds
while adjusting the mode, set
temperature or fan speed, etc.

MODE

Scrolls through operation
modes as follows:

Timer on( ) Timer off( )

Sleep( )

Turbo

Self Clean( )

Follow Me ( )

Fresh( )

AUT O

COOL

DR Y

HEA T

FAN

The selected symbol flashes
on the display area, press
or to confirm.

Mo d e

Increase temperature in
1

F (0.5

C) per click.

Hold button down to increase
temperature in 1

F (1

decrements. Max. temperature
is 86

F (30

Decreases temperature in
1

°F(0.5°C) per click.

Hold down to decrease
temperature in
1°F (1°C) decrements.
Min. temperature is 60°F (16°C)

S E T

32802000102 Specifications subject to change without notice.

Remote LCD Screen Indicators

Fig. 3 —Remote LCD Screen Indicators

Transmission Indicator

Up-Down louver
auto swing display

Right-Left louver auto
swing display*

Sleep mode display

Turbo mode display

Fresh feature display*

Follow me feature
display

Not available for
this unit

Not available for
this unit*

Self clean feature
display

Silence feature
display

Lights up when remote
sends signal to indoor
unit

ON/OFF display

Appears when the unit is turned on,
and disappears when the unit is turned off

TIMER ON display

Battery display

ECO display

LOCK display

Fan speed display

Indicates that the LOCK
function is on.

Displays selected fan speed:

Temperature/Timer/Fan

speed display

Displays the set temperature
by default, or fan speed or
timer setting when using
TIMER ON/OFF functions

Temperature range:

60-86°F/16-30°C

Timer setting range:

0-24 hours
Fan speed setting range:
AU% -100%

This display is blank when
operating in FAN mode.

Displays when ECO
feature is activated

Low battery detection

MODE display

Displays the current
mode, including:

Displays when TIMER
ON is set

TIMER OFF display

Displays when TIMER
OFF is set

11%-20%

1%-10%

21%-30%

91%-100%

AUTO

.................

This fan speed can not be
adjusted in AUTO or DRY
mode.

*Not available for this unit

Specifications subject to change without notice. 32802000102

REMOTE CONTROL

IMPORTANT: The remote control can operate the unit

from a distance of up to 26 ft. (8 m) as long as there are no

obstructions.When the timer function is used, the remote

control should be kept in the vicinity of the fan coil

(within 26 ft. / 8 m).

The remote control can perform the following basic functions:

• Turn the system

and

OFF

• Select operating mode
• Adjust room air temperature set point and fan speed
• Adjust right-left airflow direction

Refer to the Remote Control Function section for a detailed
description of all the capabilities of the remote control.

Battery Installation

Two AAA 1.5v 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 compart-

ment.

2. Insert batteries. Follow the polarity markings inside the battery

compartment.

3. Replace the battery compartment cover.

NOTES:

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 in-

door unit or if the Transmission Indicator fails to light.

5. When batteries are removed, the remote control erases all

programmed settings. The control must be reprogrammed after

insertion of new batteries.

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

right side of the unit. The unit confirms receipt of a

command by sounding an audible beep.

1. Turn the unit on by pushing

ON/OFF

2. If there is a preference for °C rather than °F (default), press and

hold the

SWING

and

LED/BUZZER

temperature set

point buttons together for approximately 3 seconds.

3. Select the desired mode by pushing

MODE

Fig. 4 —Modes

4. Select the temperature set point by pointing the control toward the

unit and pressing the increase/decrease temperature set point

buttons until the desired temperature appears on screen.

5. Select the desired fan speed by pressing

FAN -

FAN +

NOTE: If the unit is operating in DRY or AUTO mode,

the fan speed will be automatically set.

6. Set the airflow direction. When the unit is turned on, the Up-

Down Airflow louvers default to the cooling or heating position.

The user can adjust the horizontal Up-Down airflow louver

position or have continuous louver movement by pressing

SWING

Manual Control

If the remote control is lost, damaged, or the batteries are exhausted,

MANUAL

can be used to run the unit. When

MANUAL

is pressed

once, the

AUTO

mode takes affect (heat or cool). When this button

is pressed twice, the system enters the

TEST

mode and runs for 30

minutes in the

COOLING

mode (it will run in the

AUTO

mode

afterward). When pressed three times, the system turns off.

Fig. 5 —Manual Control Button

The set conditions of manual operation are as follows:

• Preset set point: 76°F (24°C)
• Fan speed:

AUTO

• Discharge air direction: Pre-set position based on

operation in “

Cool

” or “

Heat

” mode.

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment

damage.

Handle the control with care and avoid getting the

control wet.

CAUTION

Manual Control Button

Remote Control

32802000102 Specifications subject to change without notice.

REMOTE CONTROL FUNCTIONS

Pressing ON/OFF

When the air conditioner is not in operation, the remote control
displays the last set point and mode.

• Press

ON/OFF

to start the unit.

- The unit starts in the last operating mode and set point. The

ON/OFF

indicator appears.

• Press

ON/OFF

to stop the unit.

- All the indicator lights on the unit go out, and the remote
control displays the set point and mode.

NOTE: If ON/OFF is pressed too soon after a stop, the
compressor will not start for 3 to 4 minutes due to the
inherent protection against frequent compressor cycling.
The unit only emits an audible beep when the signals are
received correctly.

Selecting an Operating Mode

Use

OPERATING MODE

to select one of the available modes.

Fig. 6 —Display

Setting the Room Temperature Set Point

Press the increase temperature set point and decrease

buttons

to raise or lower the temperature.The unit confirms the signal receipt
with a beep and the value of the set temperature appears on the
display and changes accordingly. The temperature can be set
between 62°F (17°C) and 86°F (30°C) in increments of 1°F or 1°C.

NOTE: In the COOLING mode, if the temperature

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.

Selecting the Fan Speed

Fig. 7 —Fan Speeds

The fan speed can be selected by pressing

FAN

NOTE: When the unit is on, the fan runs continuously in

cooling or heating. When in the HEATING mode, there

might be situations where the fan will slow down or shut

off to prevent cold blow.

Selecting the Up-Down Louver Position

To optimize comfort, the Up-Down louver operates in a preset range

(see Figure 8).

Fig. 8 —Louver Position

The up-down airflow louver can be adjusted and can be set to be
stationary or moving continuously pressing

SWING

. The Up-

Down louver position is stored in the settings, however it is

deactivated when the

TURBO

MANUAL

settings are set, or

when a power interruption takes place.

Air Direction

Press

DIRECT

repeatedly to choose one of the Up-Down louver

positions. Every time this button is pushed, the specific louver
swings by 6 degrees.
In the

COOLING

DRY

, and

FAN

LY modes, the louver swings

in the cooling range. In the

HEATING

mode, the louver swings in

the heating range.

NOTE: Always use the remote control to adjust the Up-

Down louver position, otherwise abnormal operation may

occur. If the up-down louver is manually adjusted out of

its range, power the unit off and then back on again.

Auto Swing

For automatic Up-Down louver swing, push

SWING

Selecting Right-Left Direction of the Louver

The right-left louvers can be adjusted manually to direct the airflow
to achieve optimal comfort in the space.

Fig. 9 —Deflector Rod and Louver

COOLING

HEATING

Specifications subject to change without notice. 32802000102

Timer Function

TIMER ON

(to start the unit) and

TIMER OFF

(to stop the unit)

can be used separately or together.

Timer ON only

This function allows the unit to start automatically at the set time.
The

TIMER ON

function can be set while the unit is on or off.

UNIT ON

a. Press

SET

until an indicator

TIMER ON

appears and flashes. By default, the last time period
that you set and an "

" (indicating hours) appear on

the display. Every time

TIMER ON

pressed,

the time increases by 30 minutes, up to 10 h. It
increases by 60 minutes, afterwards, until the time
settings reach 24 h.

b. Press

and

repeatedly to set the time when you

want the unit to turn on.

c. Wait 3 seconds, the

TIMER ON

function

activates. The digital display on your remote control
will then return to the temperature display. The
indicator remains on and this function activates.

Adjust the TIMER ON settings to 0.0 to cancel this option.

Timer OFF only

This function allows the unit to stop automatically at the set time.

The timer can be set while the unit is on or off.

UNIT ON

a. Press

SET

until an indicator

TIMER OFF

appears and flashes. By default, the last time

period that you set and an "h" (indicating hours)
will appear on the display.

NOTE: This number indicates the amount of time

after the current time that you want the unit to turn

off.

Every time

TIMER OFF

is pressed, the time

increases by 30 minutes, up to 10 h. It increases by 60

minutes, afterwards, until the time settings reach 24 h.

b. Press

and

repeatedly to set the time when you

want the unit to turn on. Wait 3 seconds, then the

TIMER OFF

is activated. The digital display

on your remote control reverts to the temperature
display. The indicator remains on and this function
is activated.

c. Adjust the TIMER OFF settings to 0.0 to cancel this

option.

Setting both TIMER ON and TIMER OFF at the same time

Use both functions to program the unit to turn on and shut off at

specified times.

UNIT OFF

a. Set

TIMER ON

as previously described.

b. Set

TIMER OFF

as previously described.

The unit starts automatically at the set TIMER ON
and turns off at the set

TIMER OFF

UNIT ON

a. Set

TIMER OFF

as previously described.

b. Set

TIMER ON

as previously described. The

unit turns off automatically at the set

TIMER OFF

and turns on at the set

TIMER ON

Sleep Mode

SLEEP

mode is used to conserve energy and can be used when

the unit is in the

COOL

HEAT

AUTO

mode only.

Cool Mode
Push

SET

until

the

SLEEP

icon appears, then push

to activate. After 1 hour, the set point raises by 2°F (1°C).

After another hour, the set point raises by another 2°F (1°C) and

the fan runs in a low speed. The unit shuts off 7 hours after

setting the

SLEEP

mode. The

SLEEP

mode cancels if either

“

Mode

”, “

TEMP

”, “

Fan

”, “

Timer

”, or “

On/Off

” on the

remote control is pressed.

Heat Mode

Same as the

COOLING

mode however the set points are lowered

by 1.8 F (1C).

NOTE: The SLEEP mode is not available in AUTO, FAN

or DRY mode.

Turbo Mode

Use

TURBO

mode to cool or heat the room rapidly.

a. Press

SET

until

TURBO

appears on the remote

control, then push and to activate. An audible
“beep” is heard if the indoor unit supports this
function. The fan runs on super high speed.

TURBO

terminates automatically 20 minutes after

pressing

TURBO

. It can be terminated immediately

by selecting the

TURBO

mode again. When the

TURBO

mode is terminated, the unit reverts to the

original setting.

NOTE: The TURBO mode is not available in the FAN or
DRY modes.

SET

32802000102 Specifications subject to change without notice.

Self Clean Mode

Airborne bacteria can grow in the moisture that condenses around

the unit’s heat exchanger. With regular use, most of this moisture is

evaporated from the unit.
Press

SET

until the

SELF CLEAN

icon is displayed on the

remote control, then push Up or Down to activate. Under this

function, the air conditioner automatically cleans and dries the

evaporator coil. The cleaning cycle takes 30 minutes, after which the

unit turns off automatically.
Press

SLC

on the middle of the cycle to cancel the operation and

turn the unit off. This function can be activated only on

COOL

DRY

mode.

ECO/GEAR

NOTE: This function in available only under the COOL
mode.

Press

ECO/GEAR

to enter the energy efficient mode in the

following sequence.

Fig. 10 —ECO/Gear Sequence

Follow Me Mode

Press

SET

until the

FOLLOW ME

icon appears on the remote

control, then push and to activate or deactivate this function.
Under this setting, the temperature that appears in the remote
control is the actual temperature at its location.
The remote control sends this signal to the air conditioner every 3
minutes. This function is not available for

DRY

and

FAN

modes.

This function can also be deactivated if:

1. No

FOLLOW ME

signal is received by the unit for continuous 7

minutes.

2. Users adjust the operation mode
3. Users turn off the unit
4. Users turn off the

FOLLOW ME

function

NOTE: If FOLLOW ME is used with the wireless remote

controller, ensure that the remote’s IR sender is within

line-of-sight of the IR receiver of the unit and is within the

maximum range of 25 feet of the indoor unit. If FOLLOW

ME is de-activated by pressing MODE, OFF or

FOLLOW ME on the remote, the icon on the remote will

turn off.

Freeze Protection Mode

When the air conditioner operates under the

HEATING

mode with

the set temperature of 60°F (16°C), press

twice in two seconds to

activate the 46°F (8°C) heating function (heating set back). The unit
operates at a set temperature of 46°F (8°C).
The indoor unit display shows

. No icon will be displayed on the

remote control.

NOTE: This function is only available in the heating

mode.

Under this function, the unit operates at high fan speed and the coil
temperature automatically sets to 46°F (8°C). This mode can also be
deactivated by pressing “

On/Off

”, “

Sleep

”, “

Mode

”, “

Fan

”, or

either “

TEMP

”.

Silence Mode

Hold down

Fan

Speed

button (-) for 2 seconds to activate or

deactivate the

SILENCE

Mode. Under this function, the

compressor operates at low frequency and the indoor unit produces a

faint breeze, which reduces the noise to the lowest level. Due to low

the frequency operation of the compressor, it may result in

insufficient cooling and heating capacity.

LED Light

Press

LED/BUZZER

to turn the display light on and off.

Resetting the Remote Control

If the batteries in the remote control are removed, the current

settings will be canceled and the control returns to the initial settings
and will be in standby mode. Push

ON/OFF

to activate.

Time Delay

ON/OFF

is pressed too soon after a stop, the compressor will not

start for 3 to 4 minutes due to the inherent protection against
frequent compressor cycling. The unit only emits an audible beep
when the signals are received correctly.

Heating Features

If the unit is in the

HEATING

mode, there is a delay when the fan

starts. The fan starts only after the coil is warmed up to prevent cold
blow.

Auto Defrost Operation

In the

HEATING

mode, if the outdoor coil is frosted, the indoor fan

and outdoor fan turns off while the system removes the frost on the
outdoor coil. The system automatically reverts to normal operation
when frost is removed from the outdoor unit.

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.

Refrigerant Leakage Detection

The indoor unit displays “EC” when it detects a refrigerant leak.

SET

ECO GEAR(75%) GEAR(50%)

Previous setting mode ECO ......

SET

Specifications subject to change without notice. 32802000102

CLEANING, MAINTENANCE, AND
TROUBLESHOOTING

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 (see Table 1 on page 12).

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 into rack until filter snaps in place.
7. Close front panel on unit.

Fig. 11 —Filter Cleaning

Indoor Unit Front Panel

To clean the front panel on the indoor unit, wipe the outside with a
soft, 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.

Fig. 12 —Extended Shutdown Period Steps

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 the indoor coil or blown fuses.

CAUTION

CUT HAZARD

Failure to follow this caution may result in personal

injury. The coil fins are very sharp. Use caution when

cleaning.

Always wear safety protection.

CAUTION

larger ﬁlter

Filter Tab

Turn on FAN function until

unit dries out completely

disconnect the power

Remove

batteries

from remote control

32802000102 Specifications subject to change without notice.

Pre-Season Inspection

Fig. 13 —Pre-Season Inspection

System Operation Recommendations

The items outlined in the following list help to assure proper system

operation:

• Replace both remote control batteries at the same time.
• Point the remote control toward the unit display panel

when transmitting a command.

• Keep doors and windows closed while unit is operating.
• Contact an authorized service representative if a problem

arises that cannot be easily resolved.

• Do not perform cleaning or maintenance activities while

the unit is on.

• Keep the display panel on the unit away from direct

sunlight and heat as this may interfere with remote control

transmissions.

• Do not block air intakes and outlets on the indoor or

outdoor units.

Energy Saving Recommendations

The following recommendations will add greater efficiency to the

ductless system:

• Select a comfortable thermostat setting and leave it at

chosen setting.

• Avoid continually raising and lowering the setting.
• Keep the filter clean. Frequent cleaning may be necessary

depending on indoor air quality.

• Use drapes, curtains or shades to keep direct sunlight from

heating the room on very hot days.

• Limit the unit's run time by using the

TIMER

function.

• Do not obstruct the air intake on the front panel.
• Turn on the air conditioning unit before the indoor air

becomes too uncomfortable.

Specifications subject to change without notice. 32802000102

TROUBLESHOOTING

Refer to Table 3 before contacting your local dealer.

Table 1 — Periodic Maintenance

* Increase frequency in dusty zones.
† Maintenance to be carried out by qualified service personnel. Refer to the Installation Manual.

Table 2 — Common Issues

NOTE: If an issue persists, contact a local dealer or your nearest customer service center. Provide them with a detailed

description of the unit malfunction as well as your model number and serial number.

INDOOR UNIT

EVERY MONTH

EVERY YEAR

Clean Air Filter*



Replace Carbon Filter



Change Remote Control Batteries

OUTDOOR UNIT

EVERY MONTH

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

†



ISSUE

Possible Causes

Unit does not turn on when pressing

ON/OFF

The unit has a 3-minute protection feature that prevents the unit from overloading. The unit

cannot restart within three minutes of being turned off.

The unit changes from

COOL/HEAT

mode to

FAN

mode

The unit may change its setting to prevent frost from forming on the unit. Once the temperature

increases, the unit starts operating in the previously selected mode again.
The set temperature has been reached, at which point the unit turns off the compressor. The unit

continues operating when the temperature fluctuates again.

The indoor unit emits white mist

In humid regions, a large temperature difference between the room's air and the conditioned air

can cause white mist.

Both the indoor and outdoor units emit white

mist

When the unit restarts in

HEAT

mode after defrosting, white mist may be emitted due to moisture

generated from the defrosting process.

The indoor unit makes noises

A rushing air sound may occur when the louver resets its position.
A squeaking sound may occur after running the unit in

HEAT

mode due to expansion and con-

traction of the unit's plastic parts.

Both the indoor unit and outdoor unit make

noises

Low hissing sound during operation: This is normal and is caused by refrigerant gas flowing

through both indoor and outdoor units.
Low hissing sound when the system starts, has just stopped running, or is defrosting: This noise

is normal and is caused by the refrigerant gas stopping or changing direction.
Squeaking sound: Normal expansion and contraction of plastic and metal parts caused by

temperature changes during operation can cause squeaking noises.

The outdoor unit makes noises

The unit makes different sounds based on its current operating mode.

Dust is emitted from either the indoor or

outdoor unit

The unit may accumulate dust during extended periods of non-use, which will be emitted when

the unit is turned on. This can be mitigated by covering the unit during long periods of inactivity.

The unit emits a bad odor

The unit may absorb odors from the environment (such as furniture, cooking, cigarettes, etc.)

which will be emitted during operations.
The unit's filters have become moldy and should be cleaned.

The outdoor unit's fan does not operate

During operation, the fan speed is controlled to optimize product operation.

Operation is erratic, unpredictable, or unit is

unresponsive

Interference from cell phone towers and remote boosters may cause the unit to malfunction. In

this case, try the following:

• Disconnect the power, then reconnect.

• Press ON/OFF on remote control to restart operation.

32802000102 Specifications subject to change without notice.

Table 3 — Troubleshooting

*Diagnostic lights are a combination of lights that will illuminate in the display area on the unit. They are a combination of the lights you see

during normal operation.

PROBLEM

POSSIBLE CAUSE

SOLUTION

Unit/System Does Not Work

The circuit breaker has tripped or a fuse has blown. Reset the circuit breaker or replace the fuse with the

specified replacement fuse.

Power Failure

Restart operation when the power is restored.

Diagnostic lights illuminate*

Call your service representative.

Voltage is too low

Call your service representative.

Cooling is Not Working Properly

The filter is blocked by dust

Clean the air filter.

Temperature is not set properly

Check the temperature and reset if necessary.

A window or door is open

Close the window or door.

The outdoor unit is obstructed

Remove the obstruction.

The fan speed is too low

Change the fan speed selection.

The operation mode is in Fan instead of Cool

Change the operating mode to Cool or reset the

unit.

Heating is Not Working Properly

The filter is blocked with dust.

Clean the air filter.

Temperature is set too low

Check the temperature and reset if necessary.

A window or door is open

Close the window or door.

The outdoor unit is obstructed

Remove the obstruction.

Unit Stops During Operation

The Off timer is not operating correctly

Restart the operating mode.

Diagnostic lights illuminate.*

Call your service representative.

Indicator lamps continue flashing

The unit may stop operation or continue to run safely. If the indicator lamps continue to flash or error

codes appear, wait for about 10 minutes. The problem may resolve itself.

If not, disconnect the power, then connect it again. Turn the unit on.

If the problem persists, disconnect the power and contact your nearest customer service center.

Error code appears in the indoor

unit window display:

• E0, E1, E2…

• P1, P2, P3…

• F1, F2, F3…

3300 Riverview Parkway Atlanta GA 30339

32802000102

Specifications subject to change without notice.

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