Stealth SC-09CD-HP230 User manual

SLI CONCEALED DUCT
OWNER’S ANUAL
Models:
Indoor Unit
SC-09CD-HP230
SC-12CD-HP230
SC-18CD-HP230
SC-24CD-HP230

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
System Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 7
Wired Tether Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 -16
Wireless Remote Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-22
Care and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Diagnostic Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-28
Energy Saving Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back
Thank you for choosing a
Stealth Slim Concealed Duct
Air Conditioning & Heating System!
Please read this owner’s manual carefully before operation and retain it for future reference.
Table of Contents

• Disconnect electrical power to the indoor and outdoor units before performing any
maintenance or cleaning.
•Do not attempt to repair the system yourself. Incorrect repairs may cause electric
shock or fire. Contact a qualified service technician for all service requirements.
•Keep combustible materials away from the unit.
• Do not put hands or any objects into the air inlets or outlets. This may cause personal
injury or damage the unit.
• When cleaning, be careful not to splash water on the unit. Doing this may cause
electric shock or damage to unit.
• In the event of a failure (burning smell, etc.), immediately disconnect all electrical
power to indoor and outdoor units.
SAFETY PRECAUTIONS
Please read the following before operation.
Recognize safety information. This is the safety-alert symbol. When you see this symbol on
the unit and in instructions or manuals, be alert to the potential for personal injury. Understand
these signal words: DANGER, WARNING, and CAUTION. These words are used with the
safety-alert symbol.
DANGER identifies the most serious hazards which will result in severe personal injury or death.
WARNING signifies hazards which could result in personal injury or death.
CAUTION is used to identify unsafe practices which may 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.
NOTE: Your actual air conditioning & heating system and related devices may differ from
the images shown in this manual.
This appliance is not intended for use by children without responsible adult supervision.
Proper care should be taken to ensure safety.
eat pumps, air conditioners & heating equipment should be installed, started up, and
serviced only by qualified installers and service technicians. Air conditioning, heat pumps
and refrigeration systems are hazardous due to high voltage electrical components, high
refrigerant pressures, and moving parts.
WARNING
WARNING
WARNING
CAUTION
3

4
SYSTE PARTS
Indoor Unit
Part Name
1.
Gas & Liquid Pipes
2. Electric Box
3. Interconnection Cable
4. Wired Tether Controller
5 . Remote Controller
6. Interconnection Cable
7. Front Panel
8. Service Cover
9. Liquid Pipe
10. Gas Pipe
11. Drain ose
12. Outdoor Power Supply
Outdoor Unit
3
1
Air outlet
Air outlet
Air inlet
Air inlet
2
11 10 98 12 7
The refrigerant pipe, drain pipe, electrical wiring, and duct for this unit should be installed
by a qualified VAC professional only.
CAUTION
6
45

SYSTE FUNCTIONS
WHISPER QUIET
Not only are the Stealth systems energy efficient but they are quiet too. Slim Duct operates
with sound levels starting as low as 31 dB(A).
ULTI FAN SPEEDS
Whether operating in either Cooling or eating mode, the indoor fan can be set to your choice
of three different speeds (Low, Medium or igh) to achieve maximum comfort.
BUILT IN CONDENSATE LIFT PU P
The unit features a built-in drain pump that lifts condensate up to 11 inches above the drain
pan to a gravity condensate drain system. In most cases, the internal condensate lift mechanism
will avoid the need for an external condensate pump.
CONDENSATE SENTRY
The unit’s fail-safe mechanism recognizes when there is a high level in the condensate pan
and shuts off the system to prevent overflow.
INTELLIGENT PRE-HEATING
Slim Duct guards against the annoying cool air blown into the room in heating mode. The
system constantly monitors the discharge air temperature. It will delay the indoor fan until
the indoor coil has warmed up to prevent blowing uncomfortable cool air into the room.
CONTROLLERS
The Slim Duct unit comes with a factory supplied Wireless Remote Controller and a Wired
Tether Controller.
WIRELESS RE OTE
The multi-functional infrared hand held wireless controller is sleek, ergonomically
designed, easy to use and has a large backlit LCD display.
TETHER CONTROLLER
The wired Tether Controller mounts to the wall up to 26 feet from the unit.
It provides complete control over your unit’s operation mode, desired temperature,
fan speed, airflow direction and more.
5

SYSTE FUNCTIONS
INTELLIGENT DEFROST
The Intelligent Defrost function increases room comfort and saves energy by eliminating
unnecessary defrost cycles. In heating mode, the unit will monitor the outdoor coil for frost
buildup. Once frost buildup has been detected, the system will switch into a defrost mode to
remove the frost.
I FEEL ODE
In Cooling Mode, the unit will sense room temperature at the Tether Controller instead of at
the indoor unit. It then adjusts airflow and temperature accordingly for the ultimate in personal
comfort control and energy savings.
POWER FAILURE ODE
Power interruptions are no problem for the Slim Duct system. User selections and system parameters
are stored in non-volatile memory. These parameters are retained during a power failure. When
power is returned, the Slim Duct system will automatically return to the last operating mode.
TURBO ODE
Use Turbo Mode for situations where you wish to achieve the desired room temperature in the
shortest possible time. This mode runs the unit at ultra high speeds for quickest results.
CLOCK
The Tether and wireless controllers have a built-in clock feature. The remote will display the time
of day in a 24-hour format.
TI ER ODE
The unit can be programmed to turn ON or OFF after a specific amount of time. The time period
is adjustable between one half and 24 hours.
ODE BUTTON
The unit can be set to five different operating modes: EAT, COOL, DRY, FAN ONLY and AUTO.
NOTE: AUTO MODE has fixed setpoints of 68 °F heating and 78 °F cooling, which are
not adjustable. The system will automatically select heating or cooling to maintain room
temperature within this band.
FAHRENHEIT °F / CELSIUS °C
The remote controller can be set to display in either °F or °C.
6

SYSTE FUNCTIONS
SLEEP ODE
The unit will automatically adjust room temperature during your sleep time. This slight change
in temperature will not affect your comfort level due to the natural effects that sleeping has
on the body, but it will save on energy consumption and will lower electric bills.
X-FAN ODE
When operating in humid areas, the X-fan or Dry Coil function allows the indoor fan to run
for a pre-determined amount of time after the unit is turned off (cooling or dry modes) to
ensure that additional moisture is removed from coil.
SELF-DIAGNOSIS
With an on-board computer using real-time diagnostics, the Slim Duct system helps to
prolong its own life. The automatic diagnosis feature continuously scans for unacceptable
operating conditions or malfunctions. If such conditions occur, the system takes corrective
action or stops. Error codes are shown on the Tether Control display to facilitate easy
troubleshooting and repair.
PRIVACY LOCK ODE
The Tether and wireless controllers have a Privacy Lock. The Privacy Lock averts unauthorized
access or tampering with system settings.
AGENCY LISTINGS
All systems are listed with A RI (Air conditioning, eating, and Refrigeration Institute)
and are ETL certified per UL Standards.
7

Wired Tether Controller
INTRODUCTION FOR ICONS ON DISPLAY SCREEN
OPERATION OF WIRED TETHER CONTROLLER
1
Part Name
1. Swing Louver
2. Sleep Function
3. Auto Mode
4. Cool Mode
5. Dry Mode
6. Fan Mode
7. eat Mode
8.
Outdoor Unit
Defrost Function
9. Keypad Lock Function
10. Turbo Function State
11. Memory Function
(power failure
recovery mode)
12.
Ambient/setting
Temperature Value
13. X-Fan Function
14. Timer Function Value
1110 12 13 14
2 3 4 5 6 7 8 9
8

9
OPERATION OF WIRED TETHER CONTROLLER
ON/OFF BUTTON
Press On/Off to turn On the unit. Press again to turn it Off.
ODE SETTING
When the unit is ON, press Mode button to select an operating mode. It will change
sequentially as shown below: Auto–Cool–Dry–Fan– eat
“Off” State “On” State
Auto Cool Dry Fan Heat
F
F
F
TE PERATURE SETTING
Press ▲or ▼to increase/decrease the setpoint temperature as shown below. In Cool, Dry,
Fan or eat mode, the setpoint temperature range is 61°F - 86 °F. In Auto mode, the setpoint
temperature is not adjustable.
F

OPERATION OF WIRED TETHER CONTROLLER
FAN SETTING
When the unit is ON, press Fan button to select the fan speed of the indoor unit. It will change
sequentially as shown below.
10
Auto Low Medium High
F
TURBO ODE
Turbo mode will force the unit up to maximum capacity to heat or cool the room in the shortest
amount of time. Turbo Mode can only be used on eat or Cool modes.
Turbo Setting
Press Function button until the Turbo icon is displayed. Then press Enter/Cancel to confirm. To
cancel, press the Function button to re-enter the Turbo setting status, then press Enter/Cancel.
F
F
F
Turn On the unit and select eat or Cool mode. Press Enter/Cancel to start Turbo mode.
To cancel, press Function button to re-enter
the Turbo settings, then press Enter/Cancel button.
Press Function until Turbo mode Icon is displayed.
Cancel Turbo ode
F

11
OPERATION OF WIRED TETHER CONTROLLER
TI ER SETTING
The Slim Duct system has two timer modes. The Timer-On mode will turn the unit ON after
the preset time period. The Timer-Off Mode will turn the unit OFF after the preset time period.
The preset time period can be from 0.5 to 24 hours in 0.5 hour increments.
Timer-On Setting
Turn the unit Off, press the Timer button. The OFF icon will flash and the hours will be displayed .
Set the time period for the unit to remain OFF before turning ON by pressing the ▲or ▼
buttons. Press Timer button to confirm and start Timer-On mode.
FF
F
FF
Turn Off the unit. Press Timer button to select Timer On mode.
Press ▲or▼to select time period.
Timer modes can be cancelled anytime
by pressing the Timer button.
Cancel Timer
F
Press Enter/Cancel to start timer mode.

12
OPERATION OF WIRED TETHER CONTROLLER
Timer-Off Setting
Turn the unit On, press the Timer button. The ON icon will flash and the hours will be displayed.
Set the time period for the unit to remain ON before turning OFF by pressing the ▲or ▼
buttons. Press Timer button to confirm and start Timer-Off mode.
FF
F
FF
Turn On the unit and select eat
or Cool mode.
Press Timer button to select Timer Off mode.
Press ▲or▼to select time period.
Timer modes can be cancelled anytime
by pressing the Timer button.
Cancel Timer
F
Press Enter/Cancel to start timer mode.

SLEEP ODE
The unit will automatically adjust room temperature during your sleep time. This slight change
in temperature will not affect your comfort level due to the natural effects that sleeping has
on the body, but it will save on energy consumption and will lower your electric bill. Press the
SLEEP button to select Sleep Mode. The SLEEP icon will appear.
In Cool or Dry modes:
The unit will run at current room setpoint for 1 hour. After 1 hour, the setpoint will increase
by 2 °F. After 2 hours, the setpoint will increase by 4 °F and maintain this setpoint until Sleep
Mode is canceled.
In Heat mode:
The unit will run at current room setpoint for 1 hour. After 1 hour, the setpoint will decrease
by 2 °F. After 2 hours, the setpoint will decrease by 4 °F and maintain this setpoint until Sleep
Mode is canceled.
13
OPERATION OF WIRED TETHER CONTROLLER
Sleep Setting
Turn the unit On and select a mode (ex. eat, Cool, or Dry). Press the Function button until
the Sleep icon appears on the display. Press the Enter/Cancel button to start Sleep Mode.
F
FF
F
Turn On the unit and select a mode. Press Function until the Sleep icon is displayed. Press Enter/Cancel to start Sleep Mode.
Cancel Sleep ode
Press Function until the Sleep icon appears.
Press the Enter/Cancel button to cancel Sleep Mode.

FFF
14
OPERATION OF WIRED TETHER CONTROLLER
X-FAN ODE
The X-Fan function may only be selected in Cool and Dry modes. After the unit is turned Off,
the X-Fan function will keep the indoor fan running for a predetermined amount of time to dry
the indoor evaporator coil to help avoid mold and mildew growth.
X-Fan Settings
Turn the unit On and select Cool or Dry mode. Press Function button until X-fan icon is
displayed and then press Enter/Cancel to activate this function.
F
Turn On the unit, select Cooling
or Dry mode.
Press Function until the X-fan icon is displayed. Press Enter/Cancel to start X-fan
mode.
Cancel X-Fan ode
To cancel, press Function button to re-enter the
X-Fan settings, then press Enter/Cancel button.
CELSIUS OR FAHRENHEIT TE PERATURE DISPLAY
The wired Tether Controller is set from the factory to display
temperature in Fahrenheit (ºF). If Celsius (ºC) is desired, turn
the unit OFF, press Mode and ▼buttons at the same time
for 5 seconds to alternate between temperature displays.
F
To change temperature display.

OPERATION OF WIRED TETHER CONTROLLER
I-FEEL ODE
In Cool Mode, the Slim Duct unit will sense room temperature at the wired Tether Controller
instead of at the return air section of the indoor unit.
I-Feel Settings
Press the Function button until the I-Feel icon is displayed, then press Enter/Cancel to
activate the function.
15
F
Turn Unit On. Press Function until the I-Feel icon is displayed. Press Enter/Cancel to start I-Feel
mode.
To cancel, press Function button to re-enter the
I-Feel settings, then press Enter/Cancel button.
Cancel I-Feel ode
PRIVACY LOCK
The Privacy Lock prevents unauthorized access to the unit
controls and prevents tampering with system settings. To
lock the wired Tether Controller, press ▲and ▼ buttons
simultaneously for 5 seconds and the Lock Icon will be displayed.
Repeat the process to unlock the Tether Controller and
cancel Privacy Lock.
To activate Privacy Lock.

POWER FAILURE ODES
The unit has two selectable system power up modes:
I PORTANT: This mode arrives set at “factory default,” but should not be left there. It must be
reset to “Power Failure Recovery,” especially for use in commercial IT/server/computer rooms.
Power Failure Recovery
After the initial power up, the unit will store user selections and system parameters in
non-volatile memory. These parameters are retained during a power failure. When power is
returned, the system will automatically return to the last operating mode.
Power Failure Standby
The system will power up in standby or off mode. This is the factory default setting.
POWER FAILURE ODE SETTINGS
To set Power Failure Recovery Mode, turn the unit OFF and press the Mode and ▲ buttons
simultaneously for 5 seconds until the MEMORY Icon is displayed.
Repeat the process to select Standby mode. In Standby mode the Memory icon is not displayed.
F F F
MEMORY
Turn Unit Off.
Press Mode and ▲buttons 5 sec
until MEMORY icon is displayed.
Repeat to change Modes.
OPERATION OF WIRED TETHER CONTROLLER
16

Remote Controller
INTRODUCTION FOR ICONS ON DISPLAY SCREEN
OPERATION OF WIRELESS RE OTE CONTROLLER
Part Name
1. ON/OFF Button
2. Down Button
3. Up Button
4. Fan Button
5. Mode Button
6. I Feel Button
7. Clock Button
8. Timer On Button
9. X-Fan Button
10. Timer Off Button
11. Turbo Button
12. Sleep Button
13. Light Button
1
2
4
7
9
11
3
5
6
8
10
13
12
Auto Mode
Cool Mode
Dry Mode
Fan Mode
eat Mode
Clock
Sleep Mode
I Feel Function
Light
Send Signal
Turbo Mode
Set Fan Speed
Operation ode
Set Temperature
Set Time
Timer On/Off
Privacy Lock
17

I Feel Mode
I FEEL ODE
In Cool Mode, press this button to use the I FEEL function, and the
( ) icon will be displayed. The unit will sense room temperature
at the remote controller instead of at the indoor unit. It then adjusts
airflow and temperature accordingly for the ultimate in personal
comfort control and energy savings. Press the button again to exit
this function. For best performance, keep remote controller away
from heat or cold temperature sources while using this function.
OPERATION OF WIRELESS RE OTE CONTROLLER
18
RE OTE CONTROLLER OPERATIONS
The wireless remote controller is sleek, versatile and allows you to change room temperatures
and functions on your Slim Duct system from the palm of your hand. The large LCD display
and buttons make it easy-to-understand and easy-to-use.
The remote controller is set from factory to display temperatures
in °F. If °C is desired, turn
the remote controller OFF with the
ON/OFF button and then press “ ODE“ and “ ” buttons on
the remote simultaneously for 5 seconds.
ON/OFF BUTTON
When the system is in OFF mode, the remote controller will
display the time and last room setpoint. When you press the
ON/OFF button, this indicator will be displayed and the
unit will start in the last operating mode and room setpoint.
NOTE: If the ON/OFF button is pressed too soon after a
stop, the compressor will not start for up to 5 min. due to
the inherent protection against frequent compressor cycling.
ON Mode Display
LIGHT BUTTON
Press this button to turn off display light on indoor unit.
Press again to turn it back on.
Light Display

19
ODE BUTTON
Use the “ ODE” button to select one of the available modes.
The selected mode will be displayed on the remote controller and
the appropriate light will illuminate on the front display panel.
AUTO – Unit will automatically select heating or cooling
to maintain room temperature between 68 °F and 77 °F.
The remote controller will display the Auto Mode icon with
no setpoint.
COOL – To cool to selected setpoint and remove moisture. Press or to adjust
set temperature. System varies compressor speed to maintain desired temperature.
HEAT – To heat to selected room setpoint. Press or to adjust set temperature.
System varies compressor speed to maintain desired room temperature.
FAN ONLY – To circulate air without heating or cooling. Use Fan Speed button to select
speed from low to high.
DRY – Select DRY ODE to increase moisture removal during warm humid conditions.
In this mode, fan speed cannot be adjusted.
1. If the Room Temperature is above or equal to the set temperature, the system
will be operating with high fan speed for several minutes and then it will switch
to the selected fan speed.
2. If the Room Temperature is below the set temperature, the system will be OFF
and the indoor fan will be at low speed.
: AUTO
: COOL
: DRY
:
FAN ONLY
: HEAT
Icons Displayed
OPERATION OF WIRELESS RE OTE CONTROLLER
TURBO ODE
The desired room setpoint can be achieved faster in TURBO
mode. After selecting the“HEAT”or“COOL” mode button,
push the“TURBO”button. The TURBO icon will be
displayed on the remote controller and the unit will run at an
ultra-high speed. To deactivate the feature, push the“TURBO”
button again. The unit will return to normal operation.
Turbo Mode Display

FAN BUTTON
Press the FAN button to adjust the indoor fan speed:
Low ( ), Medium ( ), igh ( ), Turbo and Auto.
NOTE: Turbo function is not available in Dry and Auto Modes.
The Slim Duct unit will select proper fan speed automatically
according to ambient temperature.
OPERATION OF WIRELESS RE OTE CONTROLLER
CLOCK SETTING
Press this button to set clock time.“ ” icon on remote controller
will blink. Within 5 seconds, press or button to set clock time.
With each pressing of or buttons, clock time will increase
or decrease 1 minute. To quickly adjust time setting, press and
hold or button for 2 seconds. Release button when you
have reached the desired time setting. Press “CLOCK” button to
confirm the time, and “ ” icon will stop blinking.
NOTE: Clock time adopts 24-hour mode. A 12-hour time
format is not available.
• Turbo function is not available in Dry and Auto mode.
• The fan operates at low speed in Dry and Auto modes, and the
speed cannot be adjusted.
• When Auto is selected, the unit will select the proper fan speed
automatically, according to the ambient temperature.
Fan Display
Clock Setting Display
PRIVACY LOCK
The Privacy Lock prevents unauthorized access to the unit controls
and prevents tampering with system settings. The remote controller
can be locked by pushing the""and " " buttons simultaneously
for 5 seconds. The Privacy Lock icon will be displayed on the remote
controller. Repeat the process to unlock the remote controller.
U
Privacy Lock Display
20