Gree FXA3A-D, FXA2B-D, FXA3B-D, FXB5A-D Owner's Manual
Super Free Match Series
R410A Systems—BU module
Owner's Manual
Gree Air Conditioners
FXA2A-D
FXA3A-D
FXA2B-D
FXA3B-D
FXB5A-D
Thank you for choosing Gree air conditioners, please read this owner’s manual carefully before
operation and keep it for future reference.
GREE reserves the right to interpret this manual which will be subject to any change due to
product improvement without further notice.
GREE Electric Appliances, Inc. of Zhuhai reserves the final right to interpret this manual.
Preface
Super Free Match Series adopt the advanced manufacturing technology and takes the
environmental-friendly R410A as refrigerant, which is a green product in the 21st century. Please
carefully read the manual before installation and operation.
1) Super Free Match Series systems conform to design standard ARI 210240-2008.
2) To ensure safety when operating this system, please strictly follow the instructions in this
manual.
3) Make sure that the manual is kept by the operators or serviceman.
4) The refrigerant pipes and accessories must be designed exclusively for R410A.
5) The total capacity of the indoor units which runs at the same time cannot exceed the capacity of
the outdoor units; otherwise, the cooling (heating) effect of each indoor unit would be lower
than the nominal capacity.
6) In case of malfunction, please examine the following items and contact our appointed service
centers as soon as possible.
Nameplate (model, cooling capacity, product code, ex-factory date).
Malfunction status (detail description of conditions before and after malfunction occurs).
7) It is a normal phenomenon that the fan of indoor unit will still run for 20~70 seconds after the
indoor unit receives the “stop” signal so as to make full use of the waste heat.
8) When the work mode of the indoors is conflict with the modes of outdoor units, it will be
indicated on the display of the wired controller in five seconds and then the indoor unit will
stop. In this case, please harmonize their work modes: the cooling mode is compatible with the
dry mode.
9) If the supply power fails when the unit is running, then the indoor unit will send the “start”
signal to the outdoor unit three minutes later after the power recovery.
10) The power cable and transmission line must not be twisted together, but instead of separated
with an interval of at least 2cm; otherwise it may be result in communication problem.
11) This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for
their safety. Children should be supervised to ensure that they do not play with the appliance.
12) All graphics and information in this manual are only for reference. Manufacturer reserves the
right for changes in terms of sales or production at any time and without prior notice.
This product must not be disposed together with the domestic waste. This product has
to be disposed at an authorized place for recycling of electrical and electronic appliances.
Thank you for purchasing GREE air conditioners. Before using, please read this
manual carefully and keep it properly for further reference.
Contents
1 Safety Precautions ......................................................................................................................... 1
2 Product Introduction ..................................................................................................................... 3
2.1 Names of Main Parts ......................................................................................................... 3
2.2 Combinations for Outdoor and Indoor Units .................................................................... 4
2.3 Parts and Components of Unit .......................................................................................... 4
2.4 Working Temperature Range ............................................................................................ 4
3 Selection of Installation Location and Precautions ....................................................................... 5
3.1 Selection of Installation Location ..................................................................................... 5
3.2 Outline Dimension and Servicing Space of FXA2A-D .................................................... 6
3.3 Outline Dimension and Servicing Space of FXA3A-D .................................................... 7
3.4 Outline Dimension and Servicing Space of FXA2B-D .................................................... 8
3.5 Outline Dimension and Servicing Space of FXA3B-D .................................................... 9
3.6 Outline Dimension and Servicing Space of FXB5A-D .................................................. 10
4 Installation Instruction ................................................................................................................ 11
5 Installation of Refrigerant Pipes ................................................................................................. 12
5.1 Allowable Length and Drop Height of Connecting Pipe ................................................ 12
5.2 Installation of Piping Adapter (FXA2A-D; FXA3A-D and FXB5A-D) ......................... 12
5.3 Installation of Piping Adapter (FXA2B-D and FXA3B-D) ............................................ 13
5.4 Precaution for Connection .............................................................................................. 15
6 Electrical Wiring Work ............................................................................................................... 17
6.1 Wiring Connection .......................................................................................................... 17
6.2 Requirements of Power Circuit and Cable ...................................................................... 17
6.3 Ground Requirements ..................................................................................................... 18
6.4 Precautions on the Electrical Wiring Work ..................................................................... 18
6.5 Precaution of Laying Wires ............................................................................................. 19
6.6 Procedures for Electrical Wiring Work ........................................................................... 19
6.7 Instructions for DIP Switch ............................................................................................. 21
7 Design of Drainage Pipeline ....................................................................................................... 22
7.1 Installation of Drain Hose ............................................................................................... 22
7.2 Design of Drainage Pipeline ........................................................................................... 22
8 Test Operation ............................................................................................................................. 22
9 Troubleshooting .......................................................................................................................... 23
10 After-Sales Service ..................................................................................................................... 23
BU Module
1
1 Safety Precautions
This is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury or
death.
WARNING
This mark indicates procedures which, if improperly performed, might lead to the
death or serious injury of the user.
CAUTION
This mark indicates procedures which, if improperly performed, might possibly result
in personal harm to the user, or damage to property.
NOTICE
NOTICE is used to address practices not related to personal injury.
WARNING
1) Instructions for installation and use of this product are provided by the manufacturer.
2) Installation must be performed in accordance with the requirements of NEC and CEC by appointed
personnel only.
3) The installation should be left to the appointed service center and according to the instructions given in the
manual. Improper installation may cause fall down, water leakage, electric shock or fire etc.
4) For operating the air conditioner pleasantly, please install it as outlined in this installation manual.
5) The power supply must adopt the special circuit with air switch protection and assure it has enough capacity
6) Connect the indoor unit, BU module and outdoor unit with the room air conditioner piping and cord
available from our standard parts. This installation manual describes the correct connections using the
installation set available from our standard parts.
7) Before installation, check the parameter of power cord and make sure that it complies with the power
supply requirement on the nameplate. Make sure the power supply is safe.
8) This air conditioner must be properly grounded through the receptacle to avoid electric shock. The ground
wire shouldn’t be connected with gas pipe, water pipe, lightning arrester or telephone line.
9) If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant comes in contact
with a flame, it produces toxic gas.
10) Do not power on until all installation work is complete.
11) During installation, make sure that the refrigerant pipe is attached firmly before you start up the compressor.
Do not operate the compressor under the condition of refrigerant piping not attached properly with valve
open. This may cause abnormal pressure in the refrigeration cycle that leads to breakage and even injury.
12) When installing and relocating the air conditioner, do not mix gases except the specified refrigerant
(R410A) to enter the refrigerant cycle. If air or other gas enters the refrigerant cycle, the pressure inside the
cycle will rise to an abnormally high value and cause breakage, injury, etc.
13) This appliance is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for their safety. Children should be
supervised to ensure that they do not play with the appliance.
14) Never cut off or damage power cables and transmission wires. If the power cable or transmission line were
damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to
avoid a hazard.
15) After the power cord is connected, please install the cover of electric box to avoid danger.
BU Module
2
16) When installing or relocating the unit, please contact the appointed service center for the repair or
relocation. Meanwhile the specialized parts and accessories must be used. Otherwise, it may result in water
leakage, electric shock or fire hazard.
17) Diameter of power cord must be large enough. Damaged power cord or connecting wire must be replaced
by specialized electric cable.
18) The power wire and transmission line must be more than one meter away from televisions or radios which
can emit electromagnetic waves to prevent image interference or noise. Otherwise, the unit maybe not work
19) Nitrogen must be charged according to technical requirements.
20) For units with wired controllers, do not connect power supply until the wired controller is well installed.
Otherwise, the wired controller cannot be used.
21) When installation is finished, please check and make sure the drain pipe, pipeline and electric wire are all
well connected so as to avoid water leakage, refrigerant leakage, electric shock and fire hazard.
22) Never extend fingers or objects into air outlet or return air grille.
23) Please keep the room well-ventilated and it could avoid oxygen deficit.
24) Never start or stop the air conditioner by inserting or removing the power cord.
25) Before startup of the compressor, please turn on the main power switch of the unit for more than 8 hours
and it makes sure that the heater belt of the compressor has been energized for at least eight hours! Once the
compressor is started, it must be guaranteed that it works continuously for at least 30 minutes, otherwise it
would be damaged!
26) Never operate the unit with wet hands. Otherwise, it may cause electric shock.
27) Before cleaning and repairing, it is necessary to stop working and turn off the power supply. Otherwise, it
may cause electric shock or damage.
28) Do not spray water on the air conditioner or it will cause malfunction or electric shock.
29) The air conditioner is not support to install in the circumstances as the following that where there is full of
mist of oil, damp or corrosive gas, flammable gases, the acidic or alkaline vapor and the ocean.
30) Volatile liquid like thinner or gasoline will damage the appearance of air conditioner. (Please use soft dry
cloth and wet cloth with mild detergent to clean unit’s appearance.)
31) Never standing or place objects on outdoor unit. Person or objects falling from the unit may cause injury.
32) If abnormal condition occurs (e.g. unpleasant smell), please turn off the unit at once and disconnect power
supply. Then contact appointed service center. If the air conditioner continues to operate despite of
abnormal condition, it may be damaged and cause electric shock or fire hazard.
33) The drain pipe should be installed as instructed in the manual to guarantee the proper drainage; meanwhile
it should be insulated to prevent condensing; otherwise the improper installation would cause water leakage
and then wet the household wares in the room.
34) Don't attempt to repair the air conditioner by yourself. The improper repair will lead to electric shock or
fire, please contact the appointed service center and ask professional technicians to repair it.
35) Please take notice of the installation foundation of the unit after long use, if it is damaged, it may lead to the
fall of the unit and cause the injury.
36) Be sure to shut off the power supply when you do not use the air conditioner for a long time. Otherwise, the
dusts may accumulate in it, which may cause overheating or fire hazards.
37) Gree Electric Appliances, Inc. of Zhuhai is not responsible for any personal injury or property loss caused
by improper installation, improper debugging, unnecessary repair or not following the instructions of this
manual.
BU Module
3
2 Product Introduction
The BU module of Gree Super Free Match Series is the latest branch device, which adopts the
intelligent control technology. Respond to the changes in load of the indoor units, it can coordinate
the flow rate of the refrigerant well. Otherwise, it is very compact and has a flexible choice about the
installation location, such as the ceiling of parlor, corridor, balcony,storeroomand etc.
2.1 Names of Main Parts
a) FXA2A-D b) FXA3A-D
c) FXA2B-D d) FXA3B-D
e) FXB5A-D
NO.
① ② ③ ④
Name
Gas piping of indoor unit
side
Liquid piping of indoor
unit side
Hanger metal
Electrical
equipment plate
NO.
⑤ ⑥ ⑦ ⑧
Name
Liquid piping of outdoor
unit side
Gas piping of outdoor unit
side
Drain hole
Printed circuit
board
Fig. 1
BU Module
4
2.2 Combinations for Outdoor and Indoor Units
Table 1
Sorts FXA2A-D and FXA2B-D FXA3A-D and FXA3B-D
FXB5A-D
No. of connectable
indoor units
1 1 1 niM
5 3 2 xaM
2.3 Parts and Components of Unit
For the Super Free Match Series, one outdoor unit is able to drive up to three BU modules and
nine indoor units which include cassette type, duct type, wall-mounted type, floor ceiling type and
console type. The outdoor unit will run as long as any one indoor unit receives the running command,
and all indoor units stop once the outdoor unit is turned off.
Fig. 2
2.4 Working Temperature Range
Table 2
(BD :erutarepmet edistuO stroS ℃/℉)
05 mumixaM ℃(122℉)
51- muminiM ℃(5℉)
Outdoor unit
Power supply wire for outdoor
unit and BU module(3 wires)
Connection pipe
Transmission line(2 wires)
Power supply wire for
indoor unit(4 wires)
Ground
Power
(60Hz, 208/230V)
Power
(60Hz, 208/230V)
Power
(60Hz, 208/230V)
Power
(60Hz, 208/230V)
Ground
Ground
The 1st
branch
The 2nd
branch
BU 1
BU 2
BU 3
Indoor unit
Duct type
Duct type
Wall mounted
type
Wall mounted
type
Wall mounted
type
Cassette type
Cassette type
Floor ceiling
type
Console type
Ground
BU Module
5
3 Selection of Installation Location and Precautions
WARNING
1) The installation of the air conditioner must be in accordance with the national and local laws and
regulations.
2) The quality of the installation will affect the capability of air conditioner directly. The installation
should be left to the appointed service center. Please contact your dealer after purchasing this machine.
Professional installation workers will provide installation and test services according to the installation
manual.
3) The air conditioner should not install in this place where the small animals exist, because they may
cause malfunctions, smoke or fire. Please keep the area around the unit clean.
3.1 Selection of Installation Location
WARNING
1) The BU module must be installed on a firm and solid support which can withstand the weight of the
module and the mounting surface must be horizontal plane. The BU module can be chosen to install in
the ceiling, such as the ceiling of parlor, corridor, balcony, storeroom and etc.
2) The location must be out of children’s reach, please keep the unit away from children.
3) The BU module is for indoor use. If installing in the outdoors, the location must be away from wind and
rain. Otherwise, it maybe causes water leakage, electric shocks or fire etc.
4) There is enough space for the installation and maintenance.
5) Avoid direct sunlight or other heat sources exist.
6) Do not install in location that is hot or humid for long periods of time.
7) Avoid the BU module installed in the bedroom and study, where these places need to be quiet.
8) BU module cannot be installed in the place of inflammable and explosive materials and severe dust,
smoke and the other air pollution, such as the kitchen.
9) There is enough space to install drainage pipe, so that the condensed water can be discharged.
10) Installation at the following places might lead to the air conditioner malfunction, such as where is full of
machine oil, saline-sodic soil near the sea, sulphide fog, high frequency facilities or special conditions.
If it is unavoidable, please contact the appointed service center.
NOTICE
1) Make sure that the unit will not cause any operating vibration or noise after installation.
2) BU module shall be installed close to the indoor unit, hence to minimize the length and bends of
cooling pipe.
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