Gree Terra GWH09TB-D3DNA1A User manual

DUCTLESS INVERTER
HEAT PU P
OWNER’S ANUAL
Models:
GWH09TB-D3DNA1A
GWH12TB-D3DNA1A
GWH18TC-D3DNA1A
GWH24TD-D3DNA1A

1
Contents
• Safety Precautions 2
• Part Names 4
• Operation of Wireless Remote Controller 5
• Selecting Operating ode and Key Features 12
• Setting the Room Temperature Set Point 13
• Selecting the Swing Louver Position 14
• Timer Functions 15
• Sleep Functions 17
• System Functions 19
• Operation of Wireless Remote Controller 21
• Care and Cleaning 22
• Troubleshooting 23
• System Operations 25
• Energy Saving Tips 26
Thank you for choosing a
Ductless Heat Pump!
You can feel confident in your selection because the same pride in
craftsmanship and engineering knowledge that goes into millions
of other Gree installed products worldwide has gone into your unit.
Please read this owner’s manual carefully before operation
and retain it for future reference.

WARNING
2
SAFETY PRECAUTIONS
Please read the following before installation.
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 heat pump 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.
Heat 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
CAUTION
SAFETY PRECAUTIONS
Please read the following before operation.
• Disconnect electrical power to heat pump system before performing any maintenance
or cleaning.
• Do not attempt to repair the heat pump system yourself. Incorrect repairs may cause
electric shock or fire. Contact a qualified service technician for all service requirements.
• Do not stand on the top of the outdoor unit or place heavy things on it. This could cause
personal injuries or damage 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.
Front Panel Display
The front panel on the indoor unit contains system status lights and an easy-to-read L D
display. The L D display is used to display room setpoint, indoor temperature, outdoor
temperature, or malfunction codes. See"Temp" button description for more details.
NOTE: The indoor unit display panel can be turned ON or OFF via the LIGHT button
on the remote controller. See "LIGHT" button description for more detail.
3
: COOL
: DRY
: HEAT
: POWER
: SET TE P
Icons Displayed

4
PART NA ES
Indoor unit
Part Name
1. Remote Controller
2. Front Panel
3. Photocatalytic Air Filter
4. Swing Louvers
5. Refrigerant Pipes
6. Insulation
7. Refrigerant Pipes
8. Drain Hose
Outdoor unit
2
3
4
5
6
8
7
1

CAUTION
5
OPERATION OF WIRELESS RE OTE CONTROLLER
RE OTE CONTROLLER OPERATIONS
The Terra universal wireless remote controller is sleek, versatile and allows you to change
room temperatures and functions on unit from the palm of your hand. The large LCD
display and buttons make it easy-to-understand and easy-to-use.
The remote controller may be used for several Terra units. It can operate the unit from a distance
of up to 25 ft. (7.6 m) as long as there are no obstructions. This is one-way communication only
(from remote controller to indoor unit.)
The remote controller is set from factory to display temperatures in°F. If °C is desired, turn
the remote OFF and then press “ ODE“ and “––” buttons on the remote simultaneously.
ON/OFF Button
• Pressing this button will turn the unit on and off. After pressing the"ON" button, the“OPER"
icon will be displayed. When the unit is turned OFF, the“OPER"icon will disappear.
ODE Button
• Pressing this button will present the AUTO, COOL, DRY, FAN and HEAT mode options
which can then be selected. AUTO mode is the default mode. When the indoor unit first
powers on under this mode, the temperature will not be displayed.
FAN Button
• Pressing this button will present the AUTO, LOW, EDIU -LOW, EDIU ,
HIGH and ULTRA-HIGH speed options which can then be selected.
NOTE: When the indoor unit first powers on, the AUTO fan speed is the default mode.
In DRY ODE, the fan will automatically run at low speed.
TE P Button
• Pressing this button will select either Room Setpoint, Room Temperature or
Outdoor Temperature on the indoor unit front panel display. The front panel
display will always revert to room setpoint after 5 seconds. When the indoor
unit first powers on it will display the room setpoint setting. Look for the
“thermometer” icon to appear inside or outside the ”house” icon on the
remote controller display, indicating whether the front panel is displaying
room setpoint, indoor or outdoor temperatures.
• Do not drop or throw remote controller.
• Protect remote controller from water
• Keep remote controller away from direct sunlight or high heat.
Indoor
Temperature
Outdoor
Temperature

6
OPERATION OF WIRELESS RE OTE CONTROLLER
ON/OFF Button
TE P Button
FAN Button
ODE Button
Signal Transmitter

7
OPERATION OF WIRELESS RE OTE CONTROLLER
Remote Controller Functions
CLOCK Button
• Press the CLOCK button to enter Clock Setup Mode. The clock icon will begin
flashing. Set the clock by pressing the + or - buttons. Press once for slow adjustment;
press and hold down for fast adjustment. When finished, press the CLOCK button to
save your clock settings.
NOTE: The clock panel on the remote controller will display the time regardless of
whether the unit is ON or OFF.
LIGHT Button
• Press the LIGHT button to turn On or Off the display on the indoor unit front panel.
When the indoor unit first powers on, the front panel display will default to ON.
The LIGHT icon will display when the front panel display is ON.
TURBO Button
• Press the TURBO button to reach the desired room temperature faster. After
selecting the“HEAT”or“COOL” mode button, push the“TURBO” button. This
will force the unit to run at ultra high speed. When TURBO mode is running, the
TURBO icon is displayed on the remote controller.
X-FAN Button
• Press the X-FAN button to allow the indoor fan to run for 10 minutes after the
unit is turned off (cooling or dry modes only) to ensure that additional moisture is
removed from coil. X-FAN icon will be displayed on remote controller.
+ Button
• Press the + button to raise the room setpoint. Press once for slow adjustment and
hold down for fast adjustment.
– Button
• Press the – button to lower the room setpoint. Press once for slow adjustment and
hold down for fast adjustment.
QUIET Button
• Press the QUIET button to enter QUIET mode. The unit will provide quiet comfort
at low fan speed. This feature is active in HEAT or COOL modes only. The QUIET
mode icon will be displayed.

8
OPERATION OF WIRELESS RE OTE CONTROLLER
TURBO Button
CLOCK Button
– Button + Button
LIGHT Button X-FAN Button
QUIET Button

9
OPERATION OF WIRELESS RE OTE CONTROLLER
TI ER ON Button
• Press the TI ER ON button to enter TI ER mode. The TI ER ON icon will begin
flashing. Set the time period when the unit will turn on by pressing the + or - buttons.
Press once for slow adjustment and hold down for fast adjustment.
TI ER OFF Button
• Press the TI ER OFF button to enter TI ER mode. The TI ER OFF icon will begin
flashing. Set the time period when the unit will turn off by pressing the + or - buttons.
Press once for slow adjustment and hold down for fast adjustment.
I FEEL Button
• Press this button to turn on the I FEEL function. In this mode, the I FEEL icon will
turn on and room temperature is sensed at the remote controller for the ultimate in
comfort control.
SLEEP Button
• Press the SLEEP button to activate SLEEP function and select one of three comfortable
SLEEP modes. The SLEEP icon will be displayed. See the Sleep Mode for
programming details.
VERTICAL SWING LOUVERS
• Press the Vertical Swing Louver button to select nine different vertical (up & down) air
discharge directions including Continuous Sweep. The Vertical Swing Louver icon
will be displayed.
HORIZONTAL SWING LOUVERS
• Press the Horizontal Swing Louver button to set the horizontal (right to left) air discharge
direction. Select seven different angles and Continuous Sweep. The Horizontal Swing
Louver icon will be displayed.

OPERATION OF WIRELESS RE OTE CONTROLLER
SLEEP Button
I FEEL Button
10
VERTICAL SWING
LOUVER Button
TI ER ON Button
HORIZONTAL SWING
LOUVER Button
TI ER OFF Button

11
OPERATION OF WIRELESS RE OTE CONTROLLER
The wireless remote controller is the interface between the user and the Terra heat pump
system. Commands are entered by the user to control the system. Any command that has
been entered with the remote controller will remain in memory until it is changed by
the user or the batteries are replaced.
When entering commands, point the remote controller in the direction of the L D display
on the front panel. The indicator will appear for a short period of time on the remote
controller when the command is entered. The unit will emit an audible beep when the
signals are received correctly.
ON/OFF BUTTON
When the system is in OFF mode, the remote controller will
display the time and last room setpoint.
• Press the ON/OFF button to start the unit.
–The unit will start in the last operating mode and room
setpoint. The “OPER” indicator will appear. The “RUN”
indicator on the display panel turns green.
• Press button ON/OFF to stop the unit.
–The “RUN” indicator light on the display panel will turn
red and the remote controller 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.
PRIVACY LOCK ODE
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
ON Mode Display

12
SELECTING OPERATING ODE AND KEY FEATURES
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 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. The front panel display will show "77."
COOL – To cool to selected setpoint and remove moisture. System
varies compressor speed to maintain desired temperature.
HEAT – To heat to selected room setpoint. 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 ultra high.
DRY – Select DRY MOD to increase moisture removal during
warm humid conditions.
1. Room Temperature > Setpoint +4°F, the system will be
operating in cooling mode with low fan speed.
2. Setpoint -4°F, < Room Temperature < Setpoint +4°F, the
system will cycle 6 minutes ON and 4 minutes OFF in
cooling mode. The indoor fan will be at low speed.
3. Room Temperature < Setpoint -4°F, the system will be OFF
and the indoor fan will be at low speed.
TURBO ODE
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. The TURBO
icon will be displayed on the remote controller and the unit
will run at ultra high speed fan. To deactivate the feature, push the
“TURBO” button again. The unit will return to normal operation.
X-FAN ODE
When operating in humid areas, Terra has a DRY COIL function
called X-Fan that will allow 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. Push the
“X-FAN” button to enable this feature. The X-FAN icon
will be displayed on remote controller.To deactivate this
feature, push the “X-FAN” button again.
: AUTO
: COOL
: DRY
:
FAN ONLY
: HEAT
Icons Displayed
Turbo Mode Display
X-Fan Mode Display

13
SETTING THE ROO TE PERATURE SET POINT
After selecting a mode (Heat, Cool, or Dry), press the “+” and “–” buttons to select the
desired room setpoint. A room setpoint can be selected between 61°F (16°C) and 86°F (30°C).
The unit will confirm signal receipt with a beep and the value of the room setpoint is displayed
on the remote controller and on the front panel L D display.
NOTE: In Cooling mode, if the room setpoint selected is higher than the room temperature,
the unit will not start. The same applies for the Heating mode if the selected room setpoint
is lower than the room temperature.
NOTE: The room setpoint can not be changed and no value will be displayed on the remote
controller in AUTO mode.
DISPLAYING SETPOINT, INDOOR OR
OUTDOOR TE PERATURE ON FRONT PANEL:
The setpoint temperature, outdoor temperature or room temperature
can be displayed on the front panel. Only setpoint temperature is
displayed on the remote controller.
When the “TE P” 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 “TE P” button is pushed a second time, the display will
show an icon with a thermometer inside a house. This indicates
that the room temperature is displayed on the front panel.
When the "TE P” button is pushed a third time, the display will
show an icon with a thermometer outside a house. This indicates
that the outdoor temperature is displayed on the front panel.
The room temperature and outdoor temperature will be displayed
for only 5 seconds before reverting back to displaying room setpoint.
SELECTING THE FAN SPEED
Pressing the FAN button allows selection of Auto, Low, Medium-low,
Medium, High, and Ultra High fan speeds. When indoor unit is first
powered on, the Auto fan mode is used as a default. Fan speeds
cannot be selected in Dry mode.
NOTE: When the unit is on, the indoor 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.
Low/Med/High
Indicator
Auto
Room Temperature
Display
Fan Speed Display

OFF
10234
765
The Terra Heat Pump system provides four-way airflow control for optimal temperature control
and the ultimate in comfort.
When the indoor unit first powers on, the swing louvers default to an initial cooling or
heating position.
If the swing louvers position is not providing adequate comfort due to room layout or where
people are gathered, the swing louvers can be redirected or placed in auto swing mode to help
correct the situation.
NOTE: Always use the remote controller to adjust the louver position; otherwise abnormal
operation or unit damage may occur. If this occurs, turn the unit off and then on again.
SWING UP AND DOWN BUTTON
Press this button to set swing angle, which circularly changes as below:
Indicates louver swings back and forth in the five
places, as shown in the figure.
SWING LEFT AND RIGHT BUTTON
Press this button to set left & right swing angle cycling as below:
14
SELECTING THE SWING LOUVER POSITION
OFF
10234
8765
Swing Louver Display

15
TI ER FUNCTIONS
TI ER ON and TI ER OFF
This function allows the user to program in a fixed time period when the unit will automatically
turn on (TI ER ON) or shut off ( TI ER OFF). If required, the TI ER ON and TI ER OFF
functions can be used simultaneously.
NOTE: The clock on the remote controller must be set before
using this function.
TI ER ON ONLY
This function will allow the unit to start automatically after a
user selected time period. The TI ER ON can be set while
the unit is on or off.
To set the TIM R ON function, perform the following:
1. Push the “TIM R ON” button once.
2. The clock indicator and time will not be displayed on
the remote controller. The default “TIM R ON” time is the
previous programmed time period. It will be displayed
and “ON” will flash.
3. Push the “–” or “+” within 5 seconds until the desired on time period is displayed.
NOTE: Press the "+" or "-" buttons once for slow adjustment and hold down for fast adjustment.
4. Push the “TI ER ON” again. The “ON” icon will stop flashing and the time period at
which the unit will start is set. The clock indicator and the time will be displayed again.
The “TI ER ON” time period will be stored in memory indefinitely until it is changed by the
user or the remote controller batteries are replaced. If the unit is running and the “TI ER ON”
time period is reached, the unit will continue operating normally.
Timer On
Mode Display

16
TI ER FUNCTIONS
TI ER OFF ONLY
This function will allow the unit to stop automatically after a
user selected time period. The TI ER OFF function can be set
while the unit is on or off.
To set the “TI ER OFF” function, perform the following:
1. Push the “TI ER OFF” button once.
2. The clock indicator and time will not be displayed.
“OFF” will flash.
3. Push the “–” or “+” button within 5 seconds until the
desired time period is displayed.
NOTE: Press the "+" or "-" buttons once for slow adjustment
and hold down for fast adjustment.
4. Push the “TI ER OFF” button again, the “OFF” icon will stop flashing and the time
period at which the unit will turn off is set. The clock indicator and the time will be
displayed again.
The “TI ER OFF” time will be stored in memory indefinitely until it is changed by the user
or the batteries are replaced in the remote controller.
If the unit is running and the “TI ER OFF” set time period is reached, the unit will turn off.
The display on the remote controller will remain the same as when the unit was running.
To turn the unit on again, push the “ON/OFF” button twice.
Timer Off
Mode Display

SLEEP FUNCTIONS
SLEEP ODE
The Terra system 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. The
Terra System has three Sleep Modes to select from. Press the SL P button to select Sleep 1,
Sleep 2, Sleep 3 modes or Cancel. The SL P icon will appear.
GRADUAL CYCLE - SLEEP 1 ODE
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 cancelled.
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 cancelled.
ADAPTIVE CYCLE - SLEEP 2 ODE
In Cool or Dry modes:
When the initial room setpoint is between 61 - 74° F, the unit will run at current setpoint for 1 hour.
After 1 hour, the setpoint will increase by 2° F every hour.
After 3 hours, the setpoint will be fixed at 6° F above initial setpoint.
After 7 hours, the setpoint will move to 4° F above initial setpoint and maintain this setpoint until
Sleep Mode is cancelled.
When the initial room setpoint is between 75 - 81° F, the unit will run at current setpoint for 1 hour.
After 1 hour, the setpoint will increase by 2° F every hour. ,
After 2 hours, the setpoint will be fixed at 4° F above initial setpoint.
After 7 hours, the setpoint will move to 2° F above initial setpoint and maintain this setpoint until
Sleep Mode is cancelled.
When the initial room setpoint is between 82 - 85° F, the unit will run at current setpoint for 1 hour.
After 1 hour, the setpoint will increase by 2° F every hour.
After 1 hour, the setpoint will be fixed at 2° F above initial setpoint.
After 7 hours, the setpoint will be back to initial room setpoint and maintain this setpoint until
Sleep Mode is cancelled.
When the initial room setpoint is above 85° F, that setpoint will be maintained for 7 hours.
After 7 hours, the setpoint will decrease by 2° F and maintain this setpoint until Sleep Mode
is cancelled.
17
SLEEP Button

SLEEP FUNCTIONS
ADAPTIVE CYCLE - SLEEP 2 ODE con’t
In Heat mode:
When the initial room setpoint is 61° F, the unit will run at this setpoint until Sleep Mode is cancelled.
When the initial room setpoint is between 62 - 68° F, after 1 hour of run time the setpoint will
decrease by 2° F and maintain this setpoint until Sleep Mode is cancelled.
When the initial room setpoint is between 69 - 81° F, after 1 hour of run time the setpoint will
decrease by 2° F and maintain this setpoint until Sleep Mode is cancelled.
When the initial room setpoint is between 82 - 86° F, the unit will run at current setpoint for 1 hour.
After 1 hour, the setpoint will decrease by 2° F every hour.
After 3 hours, the setpoint will be fixed at 6° F below the initial setpoint and maintain this setpoint
until Sleep Mode is cancelled.
CUSTO IZE CYCLE - SLEEP 3 ODE
You will be required to enter eight (8) room setpoint values for eight (8) hours of run time. The last
room setpoint value will be maintained until sleep mode is cancelled.
In Sleep Mode 3, press "Turbo" button to enter setup mode. The remote controller will display “1:00”
in the time location. Use the “+” and “-“ buttons to select the desired room setpoint for the first hour
of run time. Then press the “Turbo” button to save the setpoint.
The remote controller time display will change to “2:00.” Once again, use the “+” and “-“ buttons
to select the desired room setpoint for the second hour of run time, and press the “Turbo” button to
again save the setpoint.
Repeat this sequence for the eight (8) room setpoint values. After all eight (8) values have been entered,
the remote controller will automatically revert to standard time and temperature display, and the
Sleep 3 Mode will begin.
At any time, you may press the “ON/OFF," " Mode," " Timer," "Sleep” or “Turbo" buttons to cancel
the Sleep 3 Mode.
18

19
SYSTE FUNCTIONS
QUIET ODE
Terra’s QUI T MOD function delivers quiet comfort to your
room. Press QUI T button to activate QUI T MOD in heating
or cooling mode. The QUI T icon will be displayed on
the remote controller. The unit operates normally for ten (10)
minutes or until room setpoint temperature is reached. Then
the Terra system will operate quietly at Low fan speed. Press
QUI T button again to cancel QUI T MOD .
NOTE: QUI T MOD cannot be selected in DRY or FAN
ONLY modes.
ENERGY SAVING ODE
The Terra System will not only keep you comfortable, they will also save you money over
the long run. nergy Saving mode will automatically select the optimal fan speed to saves
energy in COOL and H AT modes. The fan will automatically slow down the closer the
room temperature is to the setpoint. Press T MP and CLOCK simultaneously to activate
nergy Saving mode. The remote controller will display “S ” in COOL mode, while “$”
will be displayed in H AT mode. Press T MP and CLOCK simultaneously to cancel
nergy Saving Mode.
Quiet Mode
Display
nergy Saving
Display
Ultra High
FAN SPEED
ROO
TE PERATURE
Setpoint
+5°F
Setpoint
+3°F
90 °F
High Medium Low