Thank you for purchasing a Gree E-TAC. Please read this Owner’s Information Manual carefully
before installing and using this appliance. 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.
Exa mine unit fo r damage incurred during shipment. File a claim immediately with the transit
company if damage is found.
2
Page 3
READ ALL INSTRUCTIONS B EFORE INSTALLATION OR USE
SAFETY CONSIDERATIONS
Recognize safety information. This is the safety--alert
symbol
in instructions or manuals, be alert to the potential for
personal injury.
Understandthesesignalwords:DANGER,
WARNING, and CAUTION. These words are used
withthe safety--alert symbol. DANGER identifies the
most serious hazards which will result in severe
personal injury ordeath. WARNINGsignifieshazards
which could result in personal injury or death.
CAUTION is used to identify unsafe practices which
may result in minor personal i
prop
suggestionswhichwil lresultinenhanced
installation, reliability, or operation.
PERSONAL INJURY AND/OR PROPERTY DAMAGE
Failure to follow this warning could result in personal injury,
death and/or property damage.
For your safety, the information in this manual must be
followed to minimize the risk of fire or explosion, electric
shock, or to prevent property damage, personal injury, or loss
of life.
. When you see this symbol on the unit and
njury or product and
erty damage. NOTE is used to highlight
!
WARNING
HAZARD
•This unit must be properly installed in accordance
with the Installation Instructions before it is used.
•Immediately repair or replace all electric service
cords that have become frayed or otherwise
damaged.
•Unplug or disconnect the unit at the fuse box or
circuit breaker before making any repairs.
GENERAL
Thank you for choosing the Gree E-TAC! You can
feel confident in your selection because of the pride
in craftsmanship and engineering knowledge that
goes into this equipment.
Gree package terminal air conditioners and heat
pumps provide a high standard of quality in
performance, workmanship, durability and
appearance as they heat and cool the occupied air
space year round.
This manual provides information for ease
installation, operation and maintenance.
All models are designed for through-the-wall
installation. Separate installation instructions are
included with all accessory components.
BEFORE YOU BEGIN
Read these instructions completely and carefully.
IMPORTANT: Save these instructions for local
inspector’s use.
IMPORTANT: Observe all governing codes and
ordinances.
NOTE TO INSTALLER
Be sure to leave these instructions with the owner.
NOTE TO OWNER
Keep these instructions for future reference. Be sure
to write down the model and serial number of unit on
space provided on front page. T
number can be located on the serial number plate
attached to unit.
he model and serial
of
NOTE: We strongly recommend that any servicing
be performed by a qualified individual.
3
Page 4
UNIT FEATURES
Fig. 2 – E-TAC Front Panel
This E-TAC has many exciting features which
are different than those found on standard PTAC
models. The owner must be familiar with these
features in order to fully understand the operation and
capability of the unit.
• Intelligence – Your E-TAC unit has an on board
computer that utilizes real time diagnostics toprolong
the life of your unit. There is an LED indicator on the
control board, behind the front panel, that will flash
an error code if the unit has detected some kind of
fault condition. In many cases, the unit will
automatically clear th
operating with no interruption. In some cases, the
condition cannot be cleared and the unit will require
service. In those cases, an “Fx” failure mode will be
displayed on the digital display. For a detailed list of
all error codes and “Fx” conditions, see Table 6 -Status LED Indicator Definitions for further details.
• Memory – Your E-TAC unit also has memory. If
power is lost, all of the control settings (setpoint,
mode, fan speed, on/off and configuration) are
remembered. So when power is
start back up in the mode (and configuration) it was
in, when power was lost.
• Premium Sound – Your Premium E-TAC is also the
quietest PTAC ever. Not only does it have 2 fan
motors and a tangential blower wheel for optimum
sound, the indoor fan will always run a minimum of 10
seconds before the compressor, to help reduce any
compressor starting noise.
• Random Compressor restart -- To help prevent
power surges after a power outage (from many of
your E-TACs starting at the same time), the
compressor is equipped with a 2:45 to 3:15 random
restart delay feature. Whenever the unit is plugged in,
or power has been restarted, a rand
restart will occur.
• Dry Mode – will help to manage and reduce the
humidity in the room, making it more comfortable. In
DRY mode, the unit will modulate cooling mode at
low fan speed until the room temperature is 4 deg. F
e fault condition and continue
restored, the unit will
om compressor
below the room temperature setting regardless of fan
mode selection. Dry mode should not be considered a
substitute for a stand alone dehumidifier.
• Compressor Protection -- To prevent short cycling
of the compressor and maximize
it’s life, there is a
random start--up delay of3minutes on the
compressor and a minimum compressor run time of 3
minutes.
• Automatic room freezeprotection – automatically
will keep the temperature in the room from getting
too cold, where water pipes might freeze. If the unit
is configured for the freeze protection feature to be
active (which is the default condition), then whenever
power is supplied to the unit, if the unit senses
temperature below 40°F (4.4°C), the fan motor and
electri
c heater are turned on and will warm the room
to 50° F (10°C). If Freeze protection is not required,
change the configuration switch to turn the feature off
(see section on unit configuration).
• Automatic defrost protection (for heat pump
models only) – When the outdoor temperature gets
too cold (approx. 40°F / 4.4°C) and the unit can no
longer effectively heat wit
h the compressor, the unit
will automatically switch to electric heating. The unit
will then heat with electric h
eat until the outside
temperature rises enough (approx. 40°F / 4.4°C), so
the compressor can be used again.
• Automatic Quick Warm--up (for heat pump
models only) -- If the room temperature falls to 5°F
(2.8°C) below the set point temperature, the reverse
cycle heat is shut off and the electric strip heat is
turned on for one cycle, until heating is satisfied.
• LED Indicator’s and Buttons -- The touch pad has
buttonsforMODE,FAN SPEED,ON/OFF,
SETPOINT UP and SETPOIN
T DOWN. I
t also has
LEDs that correspond to the mode, fan speed and
setpoint operation, to indicate the unit’s status. The
LEDs below the mode button, FAN, COOL, and
HEAT, indicate what operating mode is active. The
LEDs below the Fan button, Low, Med and Hi,
indicate the fan speed that is selected. The LED
located in the lower right corner is the unit On/Off
status LED. If the unit is in ON mode, the LED will
be green. If the unit is OFF, the LED will be red.
• Configure Fan to Optimize Selected Application
–
Unit can be optimized to selected application by
configuring
the fan to run in continuous mode or cycle
on and off with the compressor and electric heater (can
be different for both heating and cooling modes). In
cycle mode, fan will continue to run 60 seconds after
compressor or electric heater stops in order blow off
any residual heat or cool left on coil.
4
Page 5
UNIT FEATURES CONTINUED
• Unit Configuration – There are many different
configuration possibilities, through both dipswitches
and the digital keypad, that allow you to configure
the unit for your exact application. See section on
unit configurationfor more details. Following are the
configuration selections that havenot previously been
mentioned:
• Fahrenheit °F or Celcious °C – The unit can display
in either °F or °C.
• Indoor Temperature Sensor Biasing – Optimize
the room temperature sensor reading to your exact
application (one for cool
ing and another for heating).
• Emergency Heat (for Heat Pump Only) – Disable
the compressor during heating mode operation (heat
only with Electric Heat).
• Display Setpoint or Room Temperature -- The
unit can be configured to display the room
temperature OR setpoint only, during heating and
cooling modes. See section on unit configuration for
more details.
• Limit the Setpoint Range -- The unit can be
configuredto limit the controlling setpoint range. The
display will always show the completesetpoint range,
but the
controlling setpoint will be limited to the
configuredminimum andmaximumsetpoint selected.
See section on unit configuration for more details.
• Energy Management – Sometimes known asFront Desk Control, an input is provided so that the
unit ca
n be manually disabled from a different
location. If the unit detects 24vac on this input, it will
automatically turn itself off. If no voltage is detected
on the input, the unit will run normally.
• Wall Thermostat Control – A wired wal
thermostat can be connected to the unit. If it is, the
unit must be configured to disable the keypad. See
section on wired inputs and unit configuration for
more details.
Failure to follow this warning could result in personal
injury or death and/or property damage
DO NOT alter cord or plug or use an extension cord.
IMPORTANT: For 265V units, if power cord
accessory option is selected, the cord is only 18 inches
long and must plug into the accessory electrical
265V subbase.
Be sure that your outlet matches the appropriate blade
configuration of the plug and that it is within reach of
the service cord.
All wiring, including installation of the receptacle,
must be in accordance with the NEC and local codes,
ordinances and regulations. National codes require
the use of an arc fault or leakage current detection
device on all 208/230V power cords. Be sure to selec
the correct cord for your installation.
ALL UNITS
Wire Size
Use recommended wire size given in Table 1 and
install a single branch circuit. All wiring must
comply with local and national codes. All units are
designed to operate off ONE single branch circuits
only.
NOTE: Use copper conductors only.
Table 1—SUGGESTED BRANCH CIRCUIT WIRE SIZES*
WARNING
Grounding
For safety and protection, the unit is grounded
through the service cord plug or through separate
ground wire provided on hard wired units. Be sure
that the branch circuit or general purpose outlet is
grounded.
VOLTAGE SUPPLY
Check voltage supply at outlet. For satisfactory
results, the voltage range must always be within the
ranges found on the data information plate.
Cord--connected
The 208/230-v field supplied outlet must match the plug
for the standard 208/230--v units and be within reach
of the service cord. The standard cord--connected
265--v units require an accessory electrical subbase
for operation. Refer to Table 2 for proper receptacle
and fuse type.
Power Cord
t
The power cord for 208/230v units provide power
cord fire protection. Unit power automatically
disconnects when unsafe conditions are detected.
Power to the unit can be restored by pressing the reset
button on plug head.
Upon completion of unit installation for 208/230V
models, an operational check should be performed
using the TEST/RESET buttons on the plug head.
NOTE: The 265v models do not incorporate this
feature as they require use of the electrical subbase
accessory.
Units
Protection
NAMEPLATE AMPS
7.0 to 1214
12.1 to 1612
16.1 to 2410
LEGEND
AWG --- American Wire Gauge
* Single circuit from main box.
† Based on copper wire at 60˚C temperature rating.
RECEPTACLE
AMPS152030152030
RATED VOLTS250250250265265265
TIME--- DELAY TYPE FUSE (or
HACR Circuit Breaker)
LEGEND
HACR --- Heating, Air Conditioning, Refrigeration
* May be used for 15---amp applications if fused for 1 5 amps.
AWG WIRE SIZE†
Table 2—RECEPTACLES AND FUSE TYPES -- 250, 265 VOLTS
1520*30152030
6
Page 7
INSTALLATION
Proper installation is the responsibility of the
installer.
Product failure due to improper installation is not
covered under the Warranty.
CHASSIS INSTALLATION
Units are shipped without a sleeve. In applications
where unit is a replacement, it is recommended that a
Gree sleeve be used.
These units can retrofit Carrier, General Electric,
Amana, Trane, and Friedrich sleeves/grilles (be sure
outdoor grille is installed on the sleeve). See Table 3
for details. Gree engineering must approve any other
retrofit application.
For competitive retrofit applications, be sure that the
foam seals (factory-installed on the tube sheets)
provide a good seal between the grille and outdoor coil
tube sheets. These foam seals provide a barrier to
separate outdoor coil leaving air from mixing with
the outdoor incoming air (known as air recirculation).
!
CAUTION
UNIT DAMAGE AND/OR OPERATION HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
For retrofit applications, foam seals on outdoor coil tube
sheets must make a seal between the coil and the grille or
loss of performance and premature damage to the major
components can result.
Table 3—Retrofit Wall Sleeves
Manufacturer
General ElectricMetal Sleeve RAB71
Amana
Carrier
TraneMetal Sleeve SLV149
FriedrichT ---Series Metal 11--- 1/2” (292.1 mm)
* FR ---SLEEVE --- EXT accessory is required for retrofit into Friedrich
(T---Series) wall sleeves.
IMPORTANT: Inspect wall sleeve thoroughly
prior to installation. Manufacturer does not
assume responsibility for costs or damages due to
defects in sleeve or for improper installation.
!
Failure to follow this warning could result in personal injur
or death.
Disconnect all power to unit to avoid possible electrical shoc
during installation.
WARNING
ELECTRICAL SHOCK HAZARD
y
k
GE Plastic Sleeve -- Remove bottom seal from
plastic sleeve. See Fig. 6.
INSTALLATION OF A GREE WALL
SLEEVE USING A NON--GREE GRILLE
This application has become more common due to
pre-manufactured windows with built-in grilles or
renovations where a Gree sleeve is used with an
existing non-Gree grille.
Use of a Gree wall sleeve with a non-Gree grille
requires installation of an Accessory Baffle Kit (see
Fig. 7), which ensures a good seal between the unit
and exterior grille to prevent air recirculation. Air
recirculation is a large contributor to performance
loss and prema
ture damage to major components.
Fig. 6 – Remove Bottom Seal From GE Plastic Sleeve
Fig. 7 – Accessory Baffle Kit
CONDENSATE REMOVAL SYSTEM
Gree’s series has a new condensate (water) disposal
system. The outdoor fan prop has a built in slinger
ring which draws condensate water and sprays it on the
warm outdoor coil for evaporation. Thus providing
better disposal of excess condensate and improving
unit operating efficiency.
It is normal and desirable to have some condensate
water in the base pan to boost operating efficiency.
All heat pump units contain a condensate drain
valve. This temperature activated drain valve opens
when the outdoor temperature drops below 55˚ F
(12.8˚ C) to prevent water from freezing in the base
pan. The water drains from the unit tho
sleeve and out the wall sleeve’s rear condensate
drainage holes. If the condensate drain kit accessory
is attached to the wall sleeve, water will drain
through the condensate drain tube.
NOTE: This unit will not always evaporate 100%
of the unit generated condensate and blown in
rain water. If it is necessary to control 100% of
the condensate, the Drain Kit (Part No.: DRAINKIT-1PK) and a building condensate drain
system is recommended.
ugh the wall
SLINGER
RING
CONDENSER SECTION
Condensate Removal System
A07678
8
Page 9
INSTALL UNIT INTO WALL SLEEVE
1. Carefully remove shipping tape from the front
panel and vent door. See
2. Remove shipping screw from the vent door, if
present. See Fig. 9.
3. Remove front panel. See Fig. 10.
4. Lift unit level and slide unit into wall sleeve
until foam seal rests firmly against front of wall
sleeve.
5. Secure with four screws (supplied) through the
unit flange holes. See Fig. 11.
6. Reinstall front panel. See Fig. 12.
!
PERSONAL INJURY HAZARD
Failure to follow this warning could result in personal
injury or death.
Chassis weighs up to 150 pounds (68.0 kg). Seek help
when lifting unit.
Lift unit by holding unit basepan.
WARNING
Fig. 8.
Pull out at the bottom to release it from the tabs
(1). Then lift up (2).
Fig. 10 – Removing Front Panel
!
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Failure to remove shipping tape and screw will prevent
fresh air vent door from opening and may result in damage
to vent door cable
Shipping
tape
Fig. 8 – Shipping Tape Location
Fig. 11 – Securing Unit
Place tabs over top rail (1). Push Inward at
bottom until panel snaps into place (2).
Remove shipping
screw if present
Fig. 9 – Shipping Screw Location
Fig. 12 – Replacing Front Panel
9
Page 10
SYSTEM CONFIGURATION
VENTILATION CONTROL
The ventilation control lever is located at left side of
unit, behind front panel.
NOTE: The vent door shipping hardware must be
removed before using ventcontrol lever. See
See figure 9.
When set at CLOSE, only the air inside the room is
circulated and filtered.
When set at OPEN, some outdoor air will be drawn
into room. This will reduce heating or cooling
efficiency.
Energy Tip: Keep the vent control at CLOSE. Room
air will be filtered and circulated.
ADJUSTING AIR DIRECTION
To adjust air direction:
Vent Control
(Pull lever through label
to operate.)
Fig. 16 – Ventilation Control Location
Open
Close
1. Remove front panel. See Fig. 10.
2. Remove louver screws that hold louver insert in
place (from back side of front panel). See Fig.
17.
3. Turn louver insert and rotate 180
. See Fig. 18.
˚
4. Replace louver insert.
5. Replace screws and front panel.
Air discharge upward
Louver screws
Louver screws
Fig. 17 – Backside of Front Panel
Air discharge outward (Default)
Fig. 18 – Adjusting Louvers
10
Page 11
DIP SWITCHES
)
Auxiliary dip switch controls are located behind front
panel, through an opening below the control panel.
To access, remove front panel. See Fig. 10.
Dip switches are accessible without opening the
control box. Unit must be powered OFF to
effectively change their status.
See Table 5 – Dip Switch Functions for functions of
each dip switch position.
NOTE: Configuration DIP switches are only read
during a power up cycle.
Dipswitch
Fig. 19 – Dipswitch Location on Unit
UP
Down
Freeze guard
Setpoint Limit 2
Setpoint Limit 1
Fan CON/CYC for cooling
Fan CON/CYC for heating
Wall Thermostat enable
Electric heat only (for Heat Pumps
Dip Switches
Fig. 20 – Dip Switches
Table 5—DIP SWITCH FUNCTIONS
No,UPDOWNREMARKSDEFAULT
1Electric Heat OnlyHeat PumpFor Heat Pump unit only.DOWN
2Wall Ther mostat EnableControl Panel EnableDOWN
3Fan Continuous Run for HeatingFan Cycle for HeatDOWN
4Fan Cycle for CoolFan Continuous Run for CoolingDOWN
Two configurations (5*6)
combine to select set point
range.
F
When set point limit set,
C
display always shows full
range.
(Cycle)
Protection
F (10˚C). The fan stops
˚
UP*UP
5*6
7Freeze Guard DisableFreeze Guard EnableDOWN
68---75
20---24
F
˚
C
˚
UP*DOWN
63---80
˚
C
18---28
˚
F
DOWN*UP
65---78
˚
19---26
˚
Electric Heating Only / Emergency Heat (For
Heat Pump Units
Only)
This setting is typically used for Emergency Heating.
Wall Thermostat
Enable
A wired wall thermostat can be connected to the unit.
If it is, this dipswitch must be moved to the Wall
Thermostat EnablePosition,before thewall
thermostat will begin control.
Heat and Cool Fan CON/CYC
Dip--switches
Allows the fan to operate in continuous or cycle
modes while the unit is in heating or cooling mode
(continuous or cycle):
F
C
DOWN*DOWN
61---86
˚
16---30
˚
(full range)
CON (Continuous)
Allows fan to run continuously, circulating air even when the
temperature setting has been satisfied. This switch helps to
maintain the room temperature closer to the thermostat setting.
CYC
This setting allows the fan to cycle on and off with the
compressor or electric heater. The fan stops a short time after
the temperature setting is satisfied.
Setpoint Temperature Limits
Provides a restricted range of temperature control.
Room Freeze
If unit senses a room temperature below 40
C), the fan motor and electric strip heat will turn
(4.4
˚
on and warm the room to 50
a short time after the temperature is satisfied.
DOWN*UP
65---78
˚
19---26
˚
F
C
F
˚
11
Page 12
KEYPAD CONFIGURATION
Keypad Configuration
Allows further configuration of system to desired
application. Changes do not take affect until power is
cycled on the unit.
To enter Keypad
Cycle power to unit. Press and hold the Fan Speed
Button and the COOLER button for 5 continuous
seconds, within 30 seconds of the unit being powered
up. If the unit has had power for more than 30
continuous seconds, keypad configuration cannot be
entered. When keypad configuration mode is first
entered, it will default to Fahrenheit/ Celsius Display
Mode.
To scroll through the Keypad
Options
Press and release the Fan Speed button. The stored
value will be displayed.
To modify configuration
Press and release the Setpoint Up or Setpoint Down
buttons.
To exit Keypad
Keypad Configuration will end on its own 30 seconds
after the last button press or when the MODE button
on the Keypad is pressed.
Fahrenheit/ Celsius Display Switch
Change between degrees Fahrenheit and Celsius on
the display. An “F” indicates Fahrenheit display and
‘C’ indicates Celsius. Default is degrees “F”.
Indoor Air Temperature Sensor Biasing
Cooling mode:
Sometimes known asan anticipator,theair
temperature sensor bias is used to adjust the room air
temperature reading when in cooling mode. (Not
normally required.)
Default biasing value is zero. The
range for biasing change is -6 deg F to +6 deg F (-3
deg C to +3 deg C)
Indoor Air Temperature Sensor Biasing
Heating mode:
Sometimes known asan anticipator,theair
temperature sensor bias is used to adjust the room air
temperature reading when in heating mode.(Not
Default biasing value is zero. The
normally required.)
range for biasing change is -6 deg F to +6 deg F (-3
deg C to +3 deg C)
configuration
Configuration
settings
Configuration
:
for
for
Indoor Temperature Displ ay
:
Change between showing setpoint only on the display
during heating and cooling modes “SP” or displaying
room temperature during heating and cooling modes
“AA”. “SP” mode is the default mode.
• If “SP” is selected, only the setpoint will be
displayed during heating and cooling modes,
regardless of what the real temperature is in
the room.
• If“AA”modeisselected,theroom
temperature will be displayed during heating,
cooling and fan only modes.
— If the mode button has been changed to
either heating or
cooling modes, setpoint
will be displayed for 10 seconds. After
the 10 seconds, the room temperature
will again be displayed.
If the on/off button is depressed (when
—
the unit is off) and the last mode was
either cooling or heating mode, the
setpoint will be displayed for10 seconds
before displaying room temperature.
— During heating and cooling modes, if
either the up or down setpoint key is
depressed, the display will show the
setpoint until 10 seconds afterthe last up
or down key press. Then the room
temperature will be displayed again.
12
Page 13
AUXILIARY CONTROLS
WALL THERMOSTAT TERMINAL
IMPORTANT: Only trained, qualified personnel
should access electrical panel on unit and install
electrical accessories.Please contact your local
electrical contractor, dealer, or distributor for
assistance.
Thermostat Wire
Thermostat wire is field supplied. Recommended
wire gauge is 18 to 20 gauge solid thermostat wire.
NOTE: It is recommended that extra wires are run to
unit in case any are damaged during installation.
Thermostat wire should always be routed around or
under, NEVER through, the wall sleeve. The wire
should then be routed behind the front panel to the
easily accessible terminal connector.
Routing
R W Y O Gh Gl C
Fig. 22 – Terminal Connector Removal and Replacement
Install Thermostat Wiring
1. Check to be sure power to unit is disconnected.
2. Pull terminal connector to remove
NOTE: Terminal connector can be removed and
replaced to simplify thermostat wiring.
3. Connect wires from the thermostat to terminals
on unit terminal connector.
6. Replace control panel label with wall thermostat
label. See Fig. 23.
7. Restore power to unit.
THERMOSTAT WIRE ROUTING
(UNDER SLEEVE, BEHIND FRONT PANEL)
Fig. 21 – Proper Wire Routing Beneath Unit
Wiring Thermostat To Unit
Wire wall thermostat input as defined in Fig. 25.
NOTE: Terminal connector can be removed and
replaced to simplify the wiring.
NOTE: For heat pump models, anytime there is a
second--stagecallforheatingfromthewall
thermostat, the unit will automatically switch over to
electric heating.
WA L L THE R M OSTAT COMFORT
Fig. 23 – Wall Thermostat Control Panel Label
NOTE: Refer to thermostat installation instructions
for details on installing wall thermostat.
NOTE: For thermostats that have only one fan speed
output (on or auto), the fan speed is determined by
how the terminal connector is wired. If Low fan is
desired, wire the G output from the thermostat to GL
on the unit’s terminal block. If Hi fan is desired, wire
the G output from the thermostat to GH on the unit’s
terminal block.
NOTE: After proper installation
, if your thermostat is
not working properly, refer to the Trouble Shooting
section.
13
Page 14
TERMINAL CONNECTIONS
The wall thermostat terminal block is located behind the front panel and is easily accessible on front of control
panel.
Energy
Management
(24VAC in)
Common
R
W
TYPICAL WALL THERMOSTAT
Y
O
GH
See Note 1
STATUS LED
Energy Management
Terminal Connections
Wall Thermostat
Terminal Connections
Fig. 24 – Terminal Connector and Status LED Location
!
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Improper wiring may damage unit electronics. Common
TERMINAL BLOCK
NOTES:
1. Use terminal “O” for heat pump connection only.
2. Terminal “C” (common) is typically only required for digital
thermostats.
TERMINAL
R24 VAC
WElectric Heat
YCompressor
OReversing Valve
GHHigh Fan
GLLow Fan
CCommon
NOTE: Any illegal input combinations will be captured as thermo stat wiring
failures and will light the STATUS LED indicator on main board
(see Intelligent Self --- Checking Control section)
DESIGNATION
Fig. 25 – Wiring Connections
GL
C
See Note 2
busing is not permitted. Damage or erratic operation may
result.
ENERGY MANAGEMENT INPUT (FRONT DESK CONTROL)
The controller can handle a switch signal from remote energy management input, called EM signal or front desk
control. Input must be 24VAC. If system receives a 24VAC signal, it will turn unit off; otherwise, the unit run
normal control. This function will be disabled under Freeze Guard protection. See Fig. 25 for terminal
connections.
s in
INTELLIGENT SELF--CHECKING CONTROL
Your E-TAC has a computer board that continuously checks key components of the unit to ensure they are
operating properly. Under normal operation, unit status indicator (STATUS, on main PCB), light is steadily ON.
If there is a major problem, the unit will shut down and display a diagnostic failure code on the unit’s display. If
it is only a minor failure and unit is correcting the fault by its
LED that can easily be seen when the front panel is removed (see Fig. 24). Failure STATUS codes are defined
in the table below
1
Indoor air temp sensor open/short
2
Indoor coil sensor open or short
3
Outdoor coil sensor open/short
4
Freeze Guard protection
Indoor coil freeze protection
5
Outdoor coil high temp protection
6
Defrost (heat pump type)
7
Indoor coil high temp protection
8
Thermostat wiring error
9
High pressure protection (optional)
10
NOTE: When status light is flashing, it will be ON for 1 seconds and OFF for another 1 seconds.
elf, the diagnostic code will be flashed on the status
Table 6—STATUS LED Indicator Definitions
8-segment display ‘F1’, with STATUS light flash 1 times and off 3 sec, repeat
8-segment display ‘F2’, with STATUS light flash 2 times and off 3 sec, repeat
8-segment display ‘F4’, with STATUS light flash 3 times and off 3 sec, repeat
8-segment display ‘FP’
STATU light flash 5 times and off 3 sec, repeat
STATU light flash 6 times and off 3 sec, repeat
STATU light flash 7 times and off 3 sec, repeat
STATU light flash
STATU light flash 9 times and off 3 sec, repeat
8-segment display ‘E1’, (the highest display grade)
8 times and off 3 sec, repeat
14
Page 15
OPERATION
IMPORTANT: When unit is first started, high humidity conditions can cause condensation to form on
discharge grille. Keep doors and windows closed. Room humidity will decrease and moisture will
evaporate.
DRY
TEMP CONTROL
ABOUT THE CONTROLS ON YOUR UNIT
NOTE: In case of a power failure, the unit will
remember the last programmed settings and will
restart to those settings.
1. ON and OFF MODES
ON MODE - Places unit in ready or operation mode.
OFF MODE - Places unit in standby mode.
NOTE: The LED above the ON/OFF button will be
green when unit is ON and red when the unit is OFF.
All other LEDs will be off when unit is set to OFF
mode.
NOTE: Power remains connected to unit.
2. TEMP CONTROL
Temp Control is used to maintain room temperature.
Compressor will cycle on and off to keep room
requested level of comfort.
COOLER -- Lowers temperature.
(Minimum temperature setting is 61° F/16° C)
WARMER -- Raises temperature.
(Maximum temperature setting is 86° F/30° C)
3. OPERATING MODE
MODE--COOL
MODE--DRY -- For cooling with addition moisture
removal.
MODE--HEAT -- For heating
MODE--FAN --
NOTE: If unit is a heat pump, raising the heat setting
5° F (2.8°C) will cause unit to use its electric heating
elements for one cycle in order to reach the new
requested temperature quickly.
-- For cooling
For fan--only operation
FAN, MODE& OPERATION
Fig. 26 – E-TAC CONTROLS
4. FAN SPEED
Set fan operation for HI, MED, LO and AUTO speed.
AUTO FAN MODE – Adjust the indoor fan speed to
balance room comfort and quietness. The fan speed
will increase the farther away from the selected room
temperature to quickly reach desired room temperature.
As the room temperature approaches the selected
temperature, the indoor fan slows down to a quiet
comfort level.
5. TIMER MODE
Timer ON: When the unit is ON, the Timer ON
function can be set. Time setting range is 0.5 to 24
hours. When the selected time is reached, the unit will
at the
turn ON and operate according to system settings.
Timer OFF: When the unit is OFF, the Timer OFF
function can be set. Time setting range is 0.5 to 24
hours. When the selected time is reached, the unit will
turn OFF.
Timer Setting: Press Timer button to set timer
function. The Timer LED will turn ON and “88” will
be displayed. Press the up or down arrows to select the
desired time.
15
Page 16
CARE AND CLEANING
FRONT PANEL AND CASE
Turn unit off and disconnect p ower supply.
To clean, use water and a mild detergent. DO NO T
use bleach or abr asives. Some commercial cleaners
may damage the plastic parts.
OUTDOOR COIL
Coil on outdoor side of unit should be checked
regularly. Unit will need to be removed to inspect
dir t build--up that will occur on the inside of the coil.
If clogged with dirt or soot, coil should be
professionally cleaned.
NOTE: Never use a high--pressure spray on coil.
Coils
Grille
AIR FILTERS
IMPORTANT:TURNUNITOFFBEFORE
CLEANING
!
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Do not operate unit without filters in place. If a filter
becomes torn or damaged, it should be replaced
immediately.
Operating without filters in place or with damaged filters
will allow dirt and dust to reach indoor coil and reduce
cooling, heating, airflow and efficiency of unit. Airflow
restriction may cause damage to unit.
Clean inside and
!
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Airflow restriction may cause damage to the unit.
outside of outdoor coils regularly
Fig. 27 – Outdoor Coil
.
CAUTION
BASE PAN
In some installations , dirt or other debris may be
blown into unit from outside a nd settle in base pan
(bottom of unit).
In some areas of the United States, a “jell--like“
substance may be seen in the base pan. Check base
pan periodically and clean, if necessary.
Dirty filter-
Needs cleaning
Fig. 28 – Identifying Clogged Filter
Clogged filter -
Greatly reduces cooling,
heating and airflow.
The most important thing you can do to maintain unit
efficiency is to clean the filters at least every 30 days
(or sooner depending on application). Clogged filters
reduce co oling, heating and airflow.
Keeping filters clean will:
•Decrease cost of operation.
•Save energy.
•Prevent clogged indoor coil.
•Reduce risk of premature component failure.
To Clean Air Filters:
•Vacuum off heavy soil.
•Run water through filters.
•Dry thoroughly before replacing.
Pull up
Removing Air Filter
2 Air filters
Fig.– Removing and Replacing Air Filter
29
Push down
16
Replacing Air Filter
Page 17
PREVENTATIVE MAIN TENANCE
Preventative maintenance is essential to proper unit operation, efficiency and longevity.
To ensure equipment operates properly, it must be properly maintained. Equipment operation should be checked
and verified several times during each year. During regular unit inspection and maintenance, follow the
guidelines below:
•Clean both sides of outdoor coil
with warm water and a mild detergent. Do not use corrosive coil cleaners.
(Never use high pressure spray on coils.)
•Clean bas
epan and outdoor vent filter.
•Clean outdoor orifice and fan.
•Clean indoor coil. (Never use high pressure spray on coils.)
•Clean indoor fan, wire s
creen and front panel.
•Clean or install new indoor--air inlet filter(s).
•Clean wall sleeve and outdoor grille.
•Inspect cord and receptacle.
•Secure electrical connections.
•Ensure front panel is properly mounted and not damaged.
•Ensure wall sleeve is installed properly.
•Ensure heat and cool cycles operate properly.
17
Page 18
TROUBLESHOOTING
POSSIBLE CAUSESSOLUTIONS
UNIT DOES NOT START
• Unit may have become unplugged
• Fuse may have blown
• Circuit breaker may have been tripped
•Unit may be off or in wall thermostat mode.
Check section on dipswitch settings to verify
dipswitches are set properly.
• Unit may be in a protection or diagnostic failure
mode. See section on Intelligent Self--- checking
Control.
UNIT NOT COOLING/HEATING ROOM
• Check that plug is plugged securely in wall receptacle.
Note :Plug has a test/reset button on it. Make sure that the plug
has not tripped.
• Replace the fuse. See Note 1.
• Reset circuit breaker. See Note 1.
• Turn unit on (bottom right button on keypad).
Note: If the unit turns on, the LED will be green. If the unit is off,
the LED will be red. If there is no LED on, there is a problem
with power or damage to the control.
•Unit air discharge section is blocked
•Temperature setting is not high or low enough
Note: Setpoint limits may not allow the unit to heat
or cool the room to the temperature desired.
Check section on dipswitch settings.
•Unit air filters are dirty.
•Room is excessively hot or cold when unit is started.
•Vent door left open
•Unit may be in a protection or diagnostic failure
•Make sure that curtains, blinds or furniture are not restricting or
blocking unit airflow.
•Reset to a lower or higher temperature setting.
•Remove and clean filters.
•Allow sufficient amount of time for unit to heat or cool the room.
Start heating or cooling early before outdoor temperature, cooking
heat or gatherings of people m ake room uncomfortable.
•Close vent door.
•Check dipswitch settings for desired comfort.
mode. Check section on Intelligent Self--- checking
Control.
•Compressor is in time delay. The
re is a protective
Wait approximately 3 minutes for compressor to start
time delay (approx. 3 minutes) on starting the
comp
ressor after a power outage (or restarting
after it has been turned off), to prevent tripping of
the compressor overload.
DISPLAY HAS STRANGE
NUMBERS/CHARACTERS ON IT
• The unit may be in a diagnostic condition. Check Intelligent Self--checking Control section to determine if unit has had a failure.
• The unit may be set for
°C (instead of °F), see the keypad
configuration section
UNIT MAKING NOISES• Clicking, gurgling and whooshing noises are normal during
operation of unit.
WATER DRIPPING OUTSIDE• If a drain kit has not been installed, condensation runoff during
very hot and humid weather is normal. See Note 2. If a drain kit has
been installed and is connected to a drain system, check gaskets
and fittings around drain for leaks and plugs.
WATER DRIPPING INSIDE
• Wall sleeve is not installed level•
Wall sleeve must be installed level for proper drainage of
condensation. Check that installation is level and make any
necessary adjustments.
ICE OR FROST FORMS ON INDOOR COIL
• Low outdoor temperature
• Dirty filters
• When outdoor temperature is approximately 55°F (12.8°C) or
below, frost may form on the indoor coil when unit is in Cooling
mode. Switch unit to FAN operation until ice or frost melts.
C
OMPRESSOR PROTECTION
• Power may have cycled, so compressor is in a
restart protection.
WALL THERMOSTAT PROBLEM
NOTES:
1. If circuit breaker is tripped or fuse is blown more than once, contact a qualified electrician.
2. If unit is installed where condensation drainage could drip in an undesirable location, an accessory drain kit should be installed and connected to drain
system.
• Remove and clean filters.
• Random Compressor restart --- Whenever the unit is plugged in,
or power has been restarted, a random compressor restart will
occur. After a power outage, the compressor will restart after
approximately 3 minutes.
• Compressor Protection --- To prevent short cycling of the
compressor, there is a random startup delay of 3 minutes and a
minimum compressor run time of 3 minutes.
• Verify wiring is correct between thermostat and unit.
• Dip Switch settings are only read during power up. Unplug unit
and verify Dip Switch Settings, then plug in unit.
18
Page 19
R---T CONVERSION TABLE
R25 :20.0kΩ (Tolerance 1% )
t[F]Rmin.[kΩ]Rnom.[kΩ]Rmax.[kΩ]
32.064.4665.8967.34
33.062.6864.0365.40
34.060.9562.2363.53
35.059.2760.4861.71
36.057.6558.8059.96
37.056.0757.1658.26
38.054.5455.5856.62
39.053.0654.0455.03
40.051.6352.5553.49
41.050.2351.1152.00
42.048.8849.7250.56
43.047.5748.3649.16
44.046.3047.0547.81
45.045.0745.7846.50
46.043.8744.5545.23
47.042.7143.3544.00
48.041.5842.1942.81
49.040.4841.0741.65
50.039.4239.9840.53
51.038.3938.9239.45
52.037.3937.8938.39
53.036.4236.8937.37
54.035.4735.9336.39
55.034.5634.9935.43
56.033.6634.0834.50
57.032.8033.2033.59
58.031.9632.3432.72
59.031.1431.5131.87
60.030.3530.7031.05
61.029.5829.9130.25
62.028.8329.1529.47
63.028.1028.4128.72
64.027.4027.6927.99
65.036.7126.9927.28
66.036.0426.3126.59
67.025.3925.6625.92
68.024.7625.0125.27
69.024.1524.3924.64
70.023.5523.7924.03
71.022.9723.2022.43
72.022.4022.6322.85
73.021.8522.0722.29
74.021.3221.5321.74
75.020.8021.0121.21
76.020.3020.5020.70
77.019.8020.0020.19
78.019.3319.5219.71
79.018.8619.0519.23
80.018.4118.5918.77
81.017.9718.1518.32
82.017.5417.7117.89
83.017.1217.2917.46
84.016.7116.8817.05
85.016.3216.4816.65
86.015.9316.1016.26
87.015.5615.7215.88
88.015.1915.3515.51
89.014.8414.9915.15
90.014.4914.6514.80
91.014.1514.3114.46
92.013.8213.9814.13
93.013.5013.6613.81
94.013.1913.3413.49
95.012.8913.0413.19
96.012.5912.7412.89
19
Page 20
R---T CONVERSION TABLE (cont.)
R25 :20.0kΩ (Tolerance 1% )
t[F]Rmin.[kΩ]Rnom.[kΩ]Rmax.[kΩ]
97.012.3012.4512.60
98.012.0212.1712.32
99.011.7511.9012.04
100.011.4811.6311.77
101.011.2211.3711.51
102.010.9711.1111.26
103.010.7210.8711.01
104.010.4810.6210.77
105.010.2510.3910.53
106.010.0210.1610.30
107.09.7919.93710.08
108.09.5739.7199.866
109.09.3619.5069.653
110.09.1549.2999.446
111.08.9529.0979.243
112.08.7558.9009.046
113.08.5638.7088.854
114.08.3768.5208.667
115.08.1938.3388.484
116.08.0158.1598.305
117.07.8417.9858.131
118.07.6717.8157.961
119.07.5067.6507.796
120.07.3447.4887.634
121.07.1867.3307.476
122.07.0337.1767.322
20
Page 21
GB Series –Typical Wiring Schematic for Standard Units
(Except Models with 5KW Elec. Heaters)
21
Page 22
GB Series –Typical Wiring Schematic for Models with 5KW Elec. Heaters
22
Page 23
air conditioning unit after initial
allow the exclusion or limitation of incidental or consequential damages, so the
normal maintenance as outlined in the owner’s manual.
installation.
This is the responsibility of the installer.
other damages due to the inadequacy or interruption of electrical services.
unauthorized alteration, improper servicing or operation.
environment, or other conditions beyond the control of GREE.
PARAGRAPH – Packed terminal units (GB Series) built with corrosion protection
are exempt from the exclusion – “Corrosive Environment.” The unit model number
is identified on the nameplate with CP suffix.
designated by GREE and which are specifically covered under this warranty.
Canada.
responsibility of the selling dealer or the authorized service station.
1. CLEANING REQUIRED PRIOR TO WARRANTY REPAIR.
2. Standard maintenance, cleaning or damage resulting from failure to perform
3. Instruction on methods of control and use of
4. Damage or repairs needed as consequence of faulty installation or application.
5. Failure to start due to voltage conditions, blown fuses, open circuit breakers or any
6. Damage or repairs needed as consequence of any misapplication, abuse,
7. Damage as a result of floods, winds, fires, lightning, accidents, corrosive
EXCEPTION TO CORROSIVE ENVIRONMENT EXCLUSION IN ABOVE
GREE WILL NOT BE RESPONSIBLE FOR:
8. Reimbursement for replacement parts or repair services which are not supplied or
9. GREE products installed outside the continental U.S.A., Alaska, Hawaii, and
10. Shipping damage or damage as a result of transporting the unit. This is the
. ANY SPECIAL, INDIRECT OR CONSEQUENTIAL PROPERTY OR
11
COMMERCIAL DAMAGE OF ANY NATURE WHATSOEVER. Some states do not
IMPLIED
above limitation or exclusion may not apply to you.