Gree U-Match UMAT18HP230V1AF User manual

FLOOR/CEILING
OWNER’S ANUAL
Models:
Indoor Unit Outdoor Unit
UMAT18 P230V1AF UMAT18 P230V1AO
UMAT24 P230V1AF UMAT24 P230V1AO
UMAT30 P230V1AF UMAT30 P230V1AO
UMAT36 P230V1AF UMAT36 P230V1AO
UMAT42 P230V1AF UMAT42 P230V1AO
UMAT48 P230V1AF UMAT48 P230V1AO

Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
System Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
System Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Operation of Wireless Remote Controller . . . . . . . . . . . . . . . . . . . . . . . 9-14
Care and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-17
Diagnostic Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-20
Energy Saving Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back
Thank you for choosing a
Floor/Ceiling
Air Conditioning & Heating System.
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.

Superior Design for Superior Performance
Gree’s Universal Floor/Ceiling indoor unit is designed to be suspended from a
ceiling or mounted low on a wall. The slender and lightweight design is perfect
for restaurants, light commercial applications, or wherever wall space is limited.
Aesthetically pleasing to the eye, the Universal Floor/Ceiling unit is a great fit
beneath windows, in hallways or in any public space requiring discreet, powerful
climate control. The unit is operated by an Infrared Remote Controller or Wired
Tether Controller (sold separately) to allow maximum flexibility in any application.
INTRODUCTION
2

Indoor unit
Outdoor unit
3
NO ENCLATURE
Example: UMAT18HP230V1AF
F
UMAT 18 1 A O
Series Designation
UMAT – U-Match Series
Product Type
S - System
O - Outdoor Units
H - Indoor High Wall
D - Indoor Duct
C - Indoor Cassette
F - Indoor Floor/Ceiling
Revision Level
Style/Color Designation
Electrical Rating
230V - 208/230V 60Hz 1PH
115V - 115V 60Hz 1PH
HP 230V
Cooling Capacity
18 - 18,000 BtuH
24 - 24,000 BtuH
30 - 30,000 BtuH
36 - 36,000 BtuH
42 - 42,000 BtuH
48 - 48,000 BtuH
Model Type
AC - Cooling Only
HP - Heat Pump
HC - Heat/Cool
Example: UMAT18HP230V1AO

• Disconnect electrical power to the indoor and outdoor units before performing any
maintenance or cleaning.
• Do not attempt to repair the Gree 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
4

5
Air inlet
SYSTE PARTS
Indoor Unit
Part Name
1. Front Cabinet
2. Air Inlet
3. Wired Controller
(sold separately)
4. Remote Controller
5. Drain Pipe
6. Gas Pipe
7. Liquid Pipe
8. Service Cover
9. Front Panel
Outdoor Unit
Air outlet
Air inlet
9 8
3 4
1 2
76 5
The refrigerant pipe, drain pipe and electrical wiring for this unit should be installed by a
qualified VAC professional only.
CAUTION
Air Outlet
Power
Supply

SYSTE FUNCTIONS
WHISPER QUIET
Not only are the Gree systems energy efficient but they are quiet too. Wall mounted units
operate with sound levels starting as low as 37 dB(A).
ODERN APPEARANCE
Designed to be a comfortable fit in virtually any living space. This slim compact cabinet sits
inconspicuously on the wall or ceiling, and blends into most interior designs.
UNIT DISPLAY
Gree wall mounted units have a large easy to read display and indicator lights giving instant
feedback on room setpoint, operating mode and much more. The display can also be turned
off based on your personal preference.
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.
TI E GUARD
The U-Match system is equipped with many system safeties to provide safe, reliable operation
and comfort. The Time Guard function prevents rapid cycling of the compressor. The system
has a protective five-minute time delay to restart the compressor after it has turned off.
POWER FAILURE ODE
Power interruptions are no problem for the U-Match 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 Floor/Ceiling system will automatically return to the last operating mode.
INTELLIGENT PRE-HEATING
U-Match systems 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.
TI ER ODE
The unit can be programmed to turn ON or OFF after a specific amount time. The time period is
adjustable between one half and 24 hours.
PRIVACY LOCK ODE
Both wired tether and wireless controllers have a Privacy Lock to avert unauthorized access and
stop tampering with system settings.
6

SYSTE FUNCTIONS
CONTROLLERS
The unit comes with a factory supplied Wireless Remote Controller. A Gree Wired Tether Controller
can be purchased separately for the Floor/Ceiling unit.
NOTE: The controllers are mutually exclusive. They cannot be used at the same time.
IR WIRELESS RE OTE CONTROLLER
The Gree multi-functional infrared hand held wireless controller is sleek, ergonomically
designed, easy to use and has a large backlit LCD display.
WIRED TETHER CONTROLLER (SOLD SEPARATELY)
The Gree Wired Tether Controller mounts to the wall up to 25 feet from the unit. It provides
complete control over operation mode, desired temperature, fan speed, airflow direction
and more.
SWING LOUVER
The unit has adjustable swing louvers which can be controlled from the wired tether or wireless
controllers. Vertical swing louver allows five different air discharge directions including Continuous
Sweep. Maximize comfort by adjusting the direction of airflow in the room by moving the louvers
up or down.
SLEEP ODE
The unit will automatically adjust room temperature during 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.
INTELLIGENT DEFROST
The U-Match 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.
CLOCK
The wireless remote controller has a built-in clock feature. The remote will display the time of
day in a 24-hour format.
EASY TO CLEAN AIR FILTER
A removable air filter easily slides in and out from the front of the indoor unit.
FAHRENHEIT °F / CELSIUS °C
The wired tether and wireless controllers can be set to display in either °F or °C.
7

SYSTE FUNCTIONS
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.
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 77° F cooling, which are
not adjustable. The system will automatically select heating or cooling to maintain room
temperature within this band.
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 Gree U-Match 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 unit display to facilitate easy troubleshooting
and repair.
AGENCY LISTINGS
All systems are listed with A RI (Air conditioning, eating, and Refrigeration Institute) and
are ETL certified per UL Standards.
8
OVERVIEW OF DISPLAY PANEL
1. Power Indicator:
Power indicator will be on after electrical power is
turned on, while it will be off after disconnecting power.
2. COOL Indicator:
COOL indicator will be on after COOL mode is activated
while it will be off after COOL mode is turned off.
3. eat Indicator:
EAT indicator will be on after EAT mode is activated,
while it will be off after EAT mode is turned off.
4. Indoor setpoint and temperature display.
1
2
3
4

Remote Controller
INTRODUCTION FOR ICONS ON DISPLAY SCREEN
OPERATION OF WIRELESS RE OTE CONTROLLER
Part Name
1 Signal Transmitter
2 ON/OFF Button
3 Mode Button
4 – Button
5 + Button
6 Fan Button
7 Swing Button
8 Clock Button
9 Timer ON Button
10 X-Fan Button
11 Temp Button
12 Timer OFF Button
13 Turbo Button
14 Sleep Button
15 Light Button
1
2
4
6
8
10
13
3
5
7
9
11
14
12
15
Auto Mode
Cool Mode
Dry Mode
Fan Mode
eat Mode
Clock
Sleep Mode
Set Fan Speed
Operation ode
X-Fan Mode
Set Temperature
Set Time
Timer On
Privacy Lock
Up & Down Swing
Light
Set Temp. Indoor
Ambient Temp.
Outdoor
Ambient Temp.
Temp. Display Type
Turbo Mode
9