Gree GMV-N22G/A4A-K User manual

Multi Variable Air Conditioners
Wall Mounted Type Indoor Unit
Models:
GMV-N22G/A3A-K GMV-N28G/A3A-K GMV-N36G/A3A-K GMV-N45G/A3A-K
GMV-N50G/A3A-K GMV-N56G/A3A-K GMV-N63G/A3A-K GMV-N71G/A3A-K
GMV-N22G/A2A-K GMV-N28G/A2A-K GMV-N36G/A2A-K GMV-N45G/A2A-K
GMV-N50G/A2A-K GMV-N56G/A2A-K GMV-N63G/A2A-K GMV-N71G/A2A-K
GMV-N22G/A4A-K GMV-N28G/A4A-K GMV-N36G/A4A-K GMV-N45G/A4A-K
GMV-N50G/A4A-K GMV-N56G/A4A-K GMV-N63G/A4A-K GMV-N71G/A4A-K
GMV-N22G/A8A-K GMV-N28G/A8A-K GMV-N36G/A8A-K GMV-N45G/A8A-K
GMV-N50G/A8A-K GMV-N56G/A8A-K GMV-N63G/A8A-K GMV-N71G/A8A-K
GMV-N22G/C9A-K GMV-N28G/C9A-K GMV-N36G/C9A-K GMV-N45G/C9A-K
GMV-N50G/C9A-K GMV-N56G/C9A-K GMV-N63G/C9A-K GMV-N71G/C9A-K
GMV-N22G/A3A-D GMV-N28G/A3A-D GMV-N36G/A3A-D GMV-N45G/A3A-D
GMV-N50G/A3A-D GMV-N56G/A3A-D GMV-N63G/A3A-D GMV-N71G/A3A-D
GMV-N22G/A2A-D GMV-N28G/A2A-D GMV-N36G/A2A-D GMV-N45G/A2A-D
GMV-N50G/A2A-D GMV-N56G/A2A-D GMV-N63G/A2A-D GMV-N71G/A2A-D
GMV-N22G/A4A-D GMV-N28G/A4A-D GMV-N36G/A4A-D GMV-N45G/A4A-D
GMV-N50G/A4A-D GMV-N56G/A4A-D GMV-N63G/A4A-D GMV-N71G/A4A-D
GMV-N22G/A8A-D GMV-N28G/A8A-D GMV-N36G/A8A-D GMV-N45G/A8A-D
GMV-N50G/A8A-D GMV-N56G/A8A-D GMV-N63G/A8A-D GMV-N71G/A8A-D
GMV-N22G/C9A-D GMV-N28G/C9A-D GMV-N36G/C9A-D GMV-N45G/C9A-D
GMV-N50G/C9A-D GMV-N56G/C9A-D GMV-N63G/C9A-D GMV-N71G/C9A-D
Owner's Manual
Air Conditioners
Thank you for choosing Air Conditioners, please read this owner’s manual carefully before
operation and retain it for future reference.If you have lost the Owner’s Manual, please
contact the local agent or visit www.gree.com or sent email to g[email protected]m.cn or
electronic version.
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
For correct installation and operation, please read all instructions carefully. Before reading the
instructions, please be aware of the following items:
(1) Execution standard of GMV Multi VRF: ISO 15042-2011.
(2) For the safe operation of this unit, please read and follow the instructions carefully.
(3) During operation, total capacity of indoor units should not exceed the total capacity of
outdoor units. Otherwise, indoor units will not provide enough cooling or heating.
(4) Direct operators or maintainers should well keep this manual.
(5) If this unit fails to operate normally, please contact our service center as soon as
possible and provide the following information:
Content on the nameplate (model number, cooling capacity, production code, ex-factory
date).
Malfunction details (before and after the malfunction occurs).
(6) Each unit has been strictly tested and proved to be qualified before ex-factory. In order to
prevent units from being damaged or operating normally because of improper
disassembly, please do not disassemble the unit by yourself. If you need to disassemble
and check units, please contact our service center. We will send specialists to guide the
disassembly.
(7) All graphics in this manual are only for your reference. For sales or production reasons,
these graphics are subject to change by manufacturer without prior notice.
(8) 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.If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
(9) Under the standby status, the unit will consume a little power for ensuring reliability of
complete unit, maintaining normal communication and preheating refrigerant. When the
unit won’t be used for a long time, cut off the power of the complete unit. However,
please preheat it when operating the unit next time.

Contents
1 Safety Precautions ................................................................................................ 1
2 Product Introduction............................................................................................. 3
2.1 Outline of the Unit and Main Parts ............................................................................... 3
2.2 Rated Operating Condition........................................................................................... 3
3 Installation Instruction.......................................................................................... 4
3.1 Schematic diagram of installation spaces .................................................................... 4
3.2 Requirements for Communication Line........................................................................ 4
3.3 Wiring Requirements ................................................................................................... 5
4 Installation Instructions........................................................................................ 7
4.1 Installation of Indoor Unit ............................................................................................. 7
4.2 The installation of the rear panel.................................................................................. 8
4.3 Debugging ................................................................................................................... 8
4.4 Preparation of the piping hole...................................................................................... 9
4.5 Installation of the drainage pipe ................................................................................... 9
4.6 Installation the connection pipes.................................................................................. 9
5 Wiring Work ......................................................................................................... 10
5.1 Connect Cables and Terminals of Wiring Board..........................................................10
5.2 Power Cord Connection..............................................................................................11
5.3 Connection of Communication Line of IDU and ODU..................................................11
5.4 Connection of Communication Line of Wired Controller..............................................12
5.5 Illuminate for Connection of Wired Controller and Indoor Units Network...................12
5.6 Installation of the indoor unit .......................................................................................12
6 The Best Usage Method...................................................................................... 13
7 Maintenance Method........................................................................................... 14
7.1 Cleaning panel............................................................................................................14
7.2 Cleaning the air filters .................................................................................................14
7.3 Check before the usage season..................................................................................15
7.4 Check after the usage season.....................................................................................15
8 Table of Error Codes for Indoor Unit.................................................................. 15
9 Malfunction Analyzing......................................................................................... 16
9.1 Service center.............................................................................................................16
9.2 After-sales service.......................................................................................................17
10 Adjusting Method Of The Air Direction............................................................ 17
10.1 Adjusting air direction up and down...........................................................................17
10.2 Adjusting air direction left and right............................................................................17

Multi Variable Air Conditioners Wall Mounted Type Indoor Unit
1
1 Safety Precautions
means items that must be forbidden! Otherwise, it may lead to personal injury or death or
serious damage.
means items that must be followed! Otherwise, it may lead to personal injury or property
loss.
Follow this instruction to
complete the installation
work. Please carefull read
this manual before unit
startup and service.
Installation should be conducted by
dealer or qualified personnel. Please
do not attempt to install the unit by
yourself. Improper handling may result
in waterleakage, electric shock or fire
disaster etc.
Before installation,please
check if the power supply is
in accordance with the
requirements specified on
the nameplate.And also take
care of the power safety.
Make sure the unit can be earthed
properly and soundly after plugging
into the socket so as to avoid electric
shock. Please do not connect the
ground wire to gas pipe, water pipe,
lightning rod or telephoneline.
Be sure to use the exclusive
accessory and part to
prevent the water leakage,
electric shock and fire
accidents.
If refrigerant leakage happens during
installation, please ventilate
immediately. Poisonousgas will
emerge if the refrigerant gas meets
fire.
Wire size of power cord
should be large enough. The
damaged power cord and
connection wire should be
replaced by exclusive cable.
After connecting the power cord,
please fix the electric box cover
properly in order to avoid accident.
Never fail to comply with
the nitrigen charge
requirements.Charge
nitrogen when welding
pipes.
Never short-circiut or cancel the
pressure switch to prevent unit
damage.
Please firstly connect the
wired controller before
energization, otherwise
wired controller can not be
used.
Before using the unit, please check if
the piping and wiring are correct to
avoid water leakage,refrigerant
leakage, electric shock, or fire etc.
Do not insert fingers or
objects into air outlet/inlet
grille.
Open the door and window and keep
good ventilation in the room to avoid
oxygen deficit when the gas/oil
supplied heating equipment is used.

Multi Variable Air Conditioners Floor and Ceiling Type Indoor Unit
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Never start up or shut off the
air conditioner by means of
directly plug or unplug the
power cord.
Turn off the unit after it runs at least
five minutes; otherwise it will influence
oil return of the compressor.
Do not allow children
operate this unit.
Do not operate this unit with wet
hands.
Turn off the unit or cut off the
power supply before
cleaning the unit, otherwise
electric shock or injury may
happen.
Never spray or flush water towards
unit, otherwise malfunction or electric
shock may happen.
Do not expose the unit to the
moist or corrosive
circumstances.
Electrify the unit 8 hours before
operation. Please switch on for 8
hours before operation. Do not cut off
the power when 24 hours short-time
halting (to protect the compressor).
Volatile liquid, such as
diluent or gas will damage
the unit appearance.Only
use soft cloth with a little
neutral detergent to clean
the outer casing of unit.
Under cooling mode, please don't set
the room temperature too low and
keep the temperature difference
between indoor and outdoor unit
within 5.
If anything abnormal
happens (such as burning
smell), please power off the
unit and cut off the main
power supply, and then
immerdiately contact Gree
appointed service center.If
abnormality keeps going, the
unit might be damaged and
lead to electric shock or fire.
User is not allowed to repair the unit.
Fault service may cause electric
shock or fire accidents. Please
contact Gree appointed service center
for help.
Any personal injury or property loss caused by improper installation, improper debug,
unnecessary repair or not following the instructions of this manual should not be the responsibility
of Gree Electric Appliances, Inc. of Zhuhai.

Multi Variable Air Conditioners Wall Mounted Type Indoor Unit
3
2 Product Introduction
2.1 Outline of the Unit and Main Parts
Note：
The appearances will be different by the different models of air conditioners.
No.
Part Name
No.
Part Name
①
Surface panel
④
Guide louver
②
Filter
⑤
Drain pipe
③
Wiring cover
2.2 Rated Operating Condition
Item
Indoor Condition
Outdoor Condition
DBTemperature°C
WBTemperature°C
DBTemperature°C
WBTemperature°C
Rated Cooling
27
19
35
24
Rated Heating
20
15
7
6

Multi Variable Air Conditioners Floor and Ceiling Type Indoor Unit
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3 Installation Instruction
3.1 Schematic diagram of installation spaces
Notes:
①The unit shall be installed by the professional personnel according to
this installation instruction to ensure proper use.
②Please contact the local Gree appointed service center before installation. Any
malfunctioncaused by the unit that is not installed by the Gree appointed service center
would probably not be dealt with on time because of the inconvenience of the business
contact.
③It should be guided under the professional personnel when the air conditioner unit is
moved to other place.
3.2 Requirements for Communication Line
Note:
If the unit is installed in the place with strong electromagnetic interference, shielded wire must
be applied on the communication wire between indoor unit and wired controller. Twisted pair line
with shielding function must be applied on the communication wire between indoor unit and indoor
unit (outdoor unit).
3.2.1 Select communication line for indoor unit and wired controller
Fig 3.3.1

Multi Variable Air Conditioners Wall Mounted Type Indoor Unit
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Material type
Total length of
communication line
between indoor unit
and wired controller L
(m)
Wire size
(mm2)
Material
standard
Remarks
Light/Ordinary
Polyvinyl
chloride
sheathed cord.
(60227 IEC 52
/60227 IEC 53)
L≤250
2×0.75~2×1.25
IEC
60227-5:200
7
Total length of communication line
can't exceed 250m.
The cord shall be Circular cord (the
cores shall be twisted together).
If unit is installed in places with
intense magnetic field or strong
interference, it is necessary to use
shielded wire.
3.2.2 Select communication line for indoor unit and indoor unit (outdoor unit)
Fig 3.3.2
Material Type
Total Length L (m) of
Communication Cable
between Indoor Unit
and Indoor (Outdoor)
Unit
Wire size
(mm2)
Material
Standard
Remarks
Light/Ordinary
polyvinyl
chloride
sheathed cord.
(60227 IEC 52
/60227 IEC 53)
L≤1000
≥2×0.75
IEC
60227-5:200
7
1. If the wire diameter is enlarged
to 2 ×1 mm2, the total
communication line length can
reach 1500m.
2. The cord shall be Circular cord
(the cores shall be twisted
together).
3. If unit is installed in places with
intense magnetic field or strong
interference, it is necessary to use
shielded wire.
3.3 Wiring Requirements
Model
Power Cord
Size
Air Switch
apacity
(A)
Minimum
Sectional Area of
Ground Wire
Minimum
Sectional Area of
Power
Cord(mm2)
GMV-N22G/A3A-K, GMV-N22G/A2A-K
GMV-N22G/A4A-K, GMV-N22G/A8A-K
GMV-N22G/C9A-K
220-240V~
50Hz
6
1
1
GMV-N28G/A3A-K, GMV-N28G/A2A-K
GMV-N28G/A4A-K, GMV-N28G/A8A-K
GMV-N28G/C9A-K
220-240V~
50Hz
6
1
1
GMV-N36G/A3A-K, GMV-N36G/A2A-K
GMV-N36G/A4A-K, GMV-N36G/A8A-K
GMV-N36G/C9A-K
220-240V~
50Hz
6
1
1
GMV-N45G/A3A-K, GMV-N45G/A2A-K
GMV-N45G/A4A-K, GMV-N45G/A8A-K
GMV-N45G/C9A-K
220-240V~
50Hz
6
1
1

Multi Variable Air Conditioners Floor and Ceiling Type Indoor Unit
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GMV-N50G/A3A-K, GMV-N50G/A2A-K
GMV-N50G/A4A-K, GMV-N50G/A8A-K
GMV-N50G/C9A-K
220-240V~
50Hz
6
1
1
GMV-N56G/A3A-K, GMV-N56G/A2A-K
GMV-N56G/A4A-K, GMV-N56G/A8A-K
GMV-N56G/C9A-K
220-240V~
50Hz
6
1
1
GMV-N63G/A3A-K, GMV-N63G/A2A-K
GMV-N63G/A4A-K, GMV-N63G/A8A-K
GMV-N63G/C9A-K
220-240V~
50Hz
6
1
1
GMV-N71G/A3A-K, GMV-N71G/A2A-K
GMV-N71G/A4A-K, GMV-N71G/A8A-K
GMV-N71G/C9A-K
220-240V~
50Hz
6
1
1
Model
Power Cord
Size
Air Switch
apacity
(A)
Minimum
Sectional Area of
Ground Wire
Minimum
Sectional Area of
Power Cord(mm2)
GMV-N22G/A3A-D, GMV-N22G/A2A-D
GMV-N22G/A4A-D, GMV-N22G/A8A-D
GMV-N22G/C9A-D
208~230V
~ 60Hz
6
1
1
GMV-N28G/A3A-D, GMV-N28G/A2A-D
GMV-N28G/A4A-D, GMV-N28G/A8A-D
GMV-N28G/C9A-D
208~230V
~ 60Hz
6
1
1
GMV-N36G/A3A-D, GMV-N36G/A2A-D
GMV-N36G/A4A-D, GMV-N36G/A8A-D
GMV-N36G/C9A-D
208~230V
~ 60Hz
6
1
1
GMV-N45G/A3A-D, GMV-N45G/A2A-D
GMV-N45G/A4A-D, GMV-N45G/A8A-D
GMV-N45G/C9A-D
208~230V
~ 60Hz
6
1
1
GMV-N50G/A3A-D, GMV-N50G/A2A-D
GMV-N50G/A4A-D, GMV-N50G/A8A-D
GMV-N50G/C9A-D
208~230V
~ 60Hz
6
1
1
GMV-N56G/A3A-D, GMV-N56G/A2A-D
GMV-N56G/A4A-D, GMV-N56G/A8A-D
GMV-N56G/C9A-D
208~230V
~ 60Hz
6
1
1
GMV-N63G/A3A-D, GMV-N63G/A2A-D
GMV-N63G/A4A-D, GMV-N63G/A8A-D
GMV-N63G/C9A-D
208~230V
~ 60Hz
6
1
1
GMV-N71G/A3A-D, GMV-N71G/A2A-D
GMV-N71G/A4A-D, GMV-N71G/A8A-D
GMV-N71G/C9A-D
208~230V
~ 60Hz
6
1
1

Multi Variable Air Conditioners Wall Mounted Type Indoor Unit
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4 Installation Instructions
4.1 Installation of Indoor Unit
Below are dimensions of W, H, D for different models:
Unit: mm
Item
Model
W
H
D
GMV-N22G/A3A-K, GMV-N28G/A3A-K, GMV-N22G/A2A-K
GMV-N28G/A2A-K, GMV-N22G/A4A-K, GMV-N28G/A4A-K
GMV-N22G/A8A-K, GMV-N28G/A8A-K, GMV-N22G/C9A-K
GMV-N28G/C9A-K, GMV-N22G/A3A-D, GMV-N28G/A3A-D
GMV-N22G/A2A-D, GMV-N28G/A2A-D, GMV-N22G/A4A-D
GMV-N28G/A4A-D, GMV-N22G/A8A-D, GMV-N28G/A8A-D
GMV-N22G/C9A-D, GMV-N28G/C9A-D
843
275
180
GMV-N36G/A3A-K, GMV-N45G/A3A-K, GMV-N50G/A3A-K
GMV-N36G/A2A-K, GMV-N45G/A2A-K, GMV-N50G/A2A-K
GMV-N36G/A4A-K, GMV-N45G/A4A-K, GMV-N50G/A4A-K
GMV-N36G/A8A-K, GMV-N45G/A8A-K, GMV-N50G/A8A-K
GMV-N36G/C9A-K, GMV-N45G/C9A-K, GMV-N50G/C9A-K
GMV-N36G/A3A-D, GMV-N45G/A3A-D, GMV-N50G/A3A-D
GMV-N36G/A2A-D, GMV-N45G/A2A-D, GMV-N50G/A2A-D
GMV-N36G/A4A-D, GMV-N45G/A4A-D, GMV-N50G/A4A-D
GMV-N36G/A8A-D, GMV-N45G/A8A-D, GMV-N50G/A8A-D
GMV-N36G/C9A-D, GMV-N45G/C9A-D, GMV-N50G/C9A-D
940
298
200
GMV-N56G/A3A-K, GMV-N63G/A3A-K, GMV-N71G/A3A-K
GMV-N56G/A2A-K, GMV-N63G/A2A-K, GMV-N71G/A2A-K
GMV-N56G/A4A-K, GMV-N63G/A4A-K, GMV-N71G/A4A-K
GMV-N56G/A8A-K, GMV-N63G/A8A-K, GMV-N71G/A8A-K
GMV-N56G/C9A-K, GMV-N63G/C9A-K, GMV-N71G/C9A-K
GMV-N56G/A3A-D, GMV-N63G/A3A-D, GMV-N71G/A3A-D
GMV-N56G/A2A-D, GMV-N63G/A2A-D, GMV-N71G/A2A-D
GMV-N56G/A4A-D, GMV-N63G/A4A-D, GMV-N71G/A4A-D
GMV-N56G/A8A-D, GMV-N63G/A8A-D, GMV-N71G/A8A-D
GMV-N56G/C9A-D, GMV-N63G/C9A-D, GMV-N71G/C9A-D
1008
221
319

Multi Variable Air Conditioners Floor and Ceiling Type Indoor Unit
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4.2 The installation of the rear panel
Fig 4.2
(1) Find the horizontal position by the seton method; since the drainage pipe is on the left
side, it is necessary to adjust the rear panel to make its left side a little bit lower.
(2) Fix the rear panel on the wall by bolts.
(3) After installing the rear panel, pull it by hands to check if it is secured enough. The hang
panel should support the weight of an adult (60kg), and the weight shared by every bolt
should be fairly even.
(4)
The diameter showed in Fig.4.2 is 65mm.
4.3 Debugging
Setting of main indoor unit must be done after finishing installation of unit. Otherwise, the
whole system will report “L7” error and the whole unit cannot operate.
The indoor unit defaults to be slave indoor unit when ex-factory. During project debugging, if
master indoor unit hasn’t been set manually, the outdoor unit will appoint one indoor unit as the
master indoor unit automatically. Then you can reset the master indoor unit by remote controller or
wired controller.
4.3.1 Setting by remote controller
Point the remote controller at the light board or wired controller
In fan mode, set master mode indoor unit through ▲ and ▼ button:
(1) Adjust set temperature to 30℃.
(2) Within 5 seconds, press ▼ button and then press ▲ button repeatedly for three times.
After finishing setting, “UC” is displayed on receiver light board for 5 seconds and “MASTER”
icon is displayed on wired controller.

Multi Variable Air Conditioners Wall Mounted Type Indoor Unit
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4.3.2 Setting by wired controller
4.4 Preparation of the piping hole
(1) Make the piping hole (Φ65mm) in the wall at aslight downward slant to the outdoor side.
The center of the hole should be determined referring to Fig.4.2.
(2) Insert the piping-hole sleeve into the hole to prevent the connected piping and wiring
from being damaged when passing through the hole.
4.5 Installation of the drainage pipe
(1) For proper draining, the drain hose should be placed at a downward sloping.
(2) Do not wrench or bend the drain hose or flood its end by water. (Fig.4.4)
(3) Wrap the drain hose with heat resistant material.
Fig 4.4
4.6 Installation the connection pipes
Connect the ends of the connection pipe with two leading pipes, and then tighten the joint nuts
tightly.
Connect the connect pipe with the two relative leading pipe, tie the nut on tie –in of the
connect pipe tightly.
Notes:
①Be careful in bending the connection pipes, or you would damage the pipes.
②If the tightening torque for the flare nut is too great, leakage would happen.

Multi Variable Air Conditioners Floor and Ceiling Type Indoor Unit
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5 Wiring Work
Notes:
①Units must be earthed securely, or it may cause electric shock.
②Please carefully read the wiring diagram before carry out the wiring work, incorrect wiring
could cause malfunction or even damage the unit.
③The unit should be powered by independent circuit and specific socket.
④The wiring should be in accordance with related regulations in order to ensure the units
reliable running.
⑤Install circuit breaker for branch circuit according to related regulations and electrical
standards.
⑥Keep cable away from refrigerant pipings, compressor and fan motor.
⑦The communication wires should be separated from power cord and connection wire
between indoor unit and outdoor unit.
⑧Adjust the static pressure via wired controller according to site circumstance.
5.1 Connect Cables and Terminals of Wiring Board
Connection of Wire and Patch Board Terminal
(1) The connection of wire (as shown in fig 5.1.1)
①Strip about 25mm insulation of the wire end by stripping and cutting tool.
②Remove the wiring screws on the terminal board.
③Shape the tail of wire into ring by needle nose plier, and keep the gauge of ring in
accordance with screw.
④Use the screwdriver for tightening the terminal.
(2) The connection of stranded wire (as shown in fig 5.1.2)
①Strip about 10mm insulation of the end of stranded wire by stripping and cutting tool.
②Loosen the wiring screws on terminal board.
③Insert the wire into the ring tongue terminal and tighten by crimping tool.
④Use the screwdriver for tightening the terminal.
Fig 5.1.1 Fig 5.1.2

Multi Variable Air Conditioners Wall Mounted Type Indoor Unit
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5.2 Power Cord Connection
Note:
All indoor units must be unified of power supply so that they can be powered ON/OFF at the
same time.
Fig 5.2
For units with single-phase power supply.
(1) Detach the electric box lid.
(2) Let the power cord pass through the wiring through-holes.
(3) Connect the power cord to terminal "L, N, ".
(4) Fix the power card with wiring clamp.
5.3 Connection of Communication Line of IDU and ODU
(1) Open the cover of electric box of indoor unit.
(2) Lead the communication line across the rubber ring.
(3) Connect the communication line to terminal D1 and D2 on the 4-digit wiring board of
indoor unit, as shown in Fig.5.3.1.
Fig 5.3.1 Fig 5.3.2
(4) Secure the communication line with the wire clamp on the electric box.
(5) In order to ensure the reliability of communication between IDU and ODU and the
communication among each IDU, add a matched resistance (supplied in a package
before ex-factory) on the wiring board of the last indoor unit in a series connection. The
matched resistance should be connected in parallel between terminal screw D1 and D2,
as shown in Fig.5.3.2.

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5.4 Connection of Communication Line of Wired Controller
(1) Open the cover of electric box of indoor unit.
(2) Lead the communication line of wired controller across the rubber ring.
(3) Connect the communication wire to terminal H1 and H2 of indoor 4-bit wiring board.
(4) Fix the communication wire with wire clip on the electric box.
5.5 Illuminate for Connection of Wired Controller and Indoor Units
Network
(1) Communication wire of indoor unit and outdoor unit (or indoor unit) is connected to D1,
D2.
(2) Wired controller is connected to H1, H2.
(3) One indoor unit can connect two wired controllers that must be set as master one and
slave one.
(4) One wired controller can control 16 indoor unitS in maximum at the same time.
Notes:
①The type of indoor units must be the same if they are controlled by the same wired
controller.
②When the indoor unit is controlled by two wired controllers, the addresses of the two
wired controllers should be different through address setting. Address 1 is for main
controller; Address 2 is for slave controller. Detailed setting please refer to the instruction
manual of wired controller.
5.6 Installation of the indoor unit
(1) When routing the piping and wiring from the left or right side of the
indoor unit, it is necessary to cut off the tailings of the pipe left on the holder of the
unit. (Shown in Fig.5.6)
Cut down tailings 1 when only the power cord is led.
Cut down tailings 1, 2 (or 1, 2, 3) when the connection cord and wire are led.
The piping types ①,②,③are recommended.
(2) Let the tubing and cord pass though the piping hole after tied up (refer to Fig .5.6 (d)).
(3) Hang the claw behind the indoor unit on the pothook on the wall panel, and move the unit
left and right to check if the body is firm.
(4) Guarantee that the installation height of the indoor unit should be 2.5m above the floor.

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Fig 5.6
6 The Best Usage Method
(1) Adjust the set temperature properly in proper to prevent electricity wasting. It is better
tocontrol the difference of the indoor and outdoor temperatures within 5°C.
(2) The better effect will be maintained by adjusting the guide louver downward for heating
and horizontal for cooling.
(3) When the air conditioner is running, don’t open windows or doors for long time, otherwise
the efficiency of unit will be lowered.
(4) Prevent the cooled air blowing to body directly for long time and making indoor
temperature too low, for it is bad for health.
(5) Do not pour water to unit or clean it by water, otherwise a malfunction or electric shock
may happen.
(6) Do not mangle the power cord and the communication cord. The damaged power cord
and communication cord can only be replaced by the specified ones.
(7) This air conditioner allows voltage fluctuation within 220±10%V.
(8) This air conditioner cannot be used for drying clothes and refrigerating food, etc..

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7 Maintenance Method
Warning：
(1) Do turn off the unit and cut off the power when cleaning the air conditioner, otherwise
electric shock may happen.
(2) Do not make the air conditioner wet or electric shock may be incurred; Ensure that the air
conditioner will not be cleaned by water rinsing under any circumstance.
(3) Volatile liquid like thinner or gasoline would damage the appearance of the air
conditioner. (Only soft dry cloth and wet cloth moistened with neutral detergent could be
used to clean the surface panel of the air conditioner.)
7.1 Cleaning panel
Note：
Do take down it before cleaning.
(1) Pull along the direction of arrows to take down the panel.
(2) Clean the panel
Clean it with a soft-hair brush, water and neutral cleaning fluid, and then dry it.
Caution：
Do not use water above 45°C to wash the panel to prevent decoloration or deformation.
(3) Install the panel
As shown in Fig.II, install the stands of both ends of the panel into the slot and put the middle
rotating shaft into the groove, then place the panel and clasp back along the arrow direction.
Fig 7.1.1 Fig 7.1.2
7.2 Cleaning the air filters
Clean it once every 3 months; When the usage environment has lots of dust, it should be
cleaned more frequently.
(1) Take down the air filter
As shown in Fig.III, open the surface panel by holding the both ends of groove along the
arrow direction, and then take the air filter out downward.
(2) Clean the filter
Use cleaner or water to wash the filter; if the filter is too dirty ( like oil stain on it ), warm water
( lower than 45°C) with neutral detergent can be used, then dry it in the shade.
Note:
①Do not clean the filter by hot water higher than 45°C for preventing fade or deformation.
②Do not burn it on fire or the filter would catches fire or deformation.

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(3) Install air filter
Install the air filter properly along the arrow direction, making the side marked “Front” facing
yourself and then place the panel back.
Fig 7.2.1 Fig 7.2.2
7.3 Check before the usage season
(1) Check if there is blockage in the inlet or outlet vent of the air conditioner.
(2) Check if the earth wire is earthed reliably.
(3) Check if the batteries in the wireless remote controller have been replaced.
(4) Check if the air filter has been installed properly
In order to start up the air conditioner smoothly after it has been turned off for a long time
period, energize the unit 8 hours before turning it on.
7.4 Check after the usage season
(1) Clean filter and body of air conditioner.
(2) Cut off the main power supply of air conditioner.
8 Table of Error Codes for Indoor Unit
Error
Code
Content
Error
Code
Content
Error
Code
Content
L0
Indoor Unit Error
L9
Quantity Of Group
Control Indoor Units
Setting Error
d8
Water Temperature
Sensor Error
L1
Indoor Fan Protection
LA
Indoor Units
Incompatibility Error
d9
Jumper Cap Error
L2
E-heater Protection
LH
Low Air Quality
Warning
dA
Indoor Unit
Network Address Error
L3
Water Full Protection
LC
Outdoor-Indoor
Incompatibility Error
dH
Wired Controller Circuit
Board Error
L4
Power Supply
Overcurrent Protection
d1
Indoor Unit Circuit
Board Error
dC
Capacity DIP Switch
Setting Error
L5
Anti-freezing
Protection
d3
Ambient Temperature
Sensor Error
dE
Indoor Unit CO2
Sensor Error
L7
No Master Indoor Unit
Error
d4
Inlet Pipe Temperature
Sensor Error
C0
Communication Error
L8
Power Insufficiency
Protection
d6
Outlet Pipe
Temperature Sensor
Error
AJ
Filter Cleaning
Reminding
db
Special Code:
Project Debugging
Code
dL
Outlet Air Temperature
Sensor Error

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9 Malfunction Analyzing
Warning:
Do not repair the air conditioner by yourself for the incorrect repair would lead to electric
shockor fire. Please contact the service center and have the unit repaired by the specialized
personnel. Check the following items before contacting the service center, as it could save your
time and cost.
Malfunction Phenomena
Malfunction Analyzing
The air conditioner could not start up
just after turned off
The over load protection switch of the unit makes it run after 3
minutes delay
Odor gave out when the unit just was
turned on
Odors or cigarette smoke which has been absorbed in is discharged
out.
Slight bicker was heard when the unit
was running
This is the sound of the running refrigerant
Mist came from the air outlet vent when
cooling
Indoor air is cooled rapidly
Creak sound was heard when the unit
was running or after it was turned off
It is the sound emitted by the expansion of the panel and other parts
because of the temperature change.
The air conditioner failed to run
Is the power supply cut off?
Is the power supply connected?
Is the circuit protector started aside ? Is the voltage too high or too
low?
If TIMER had been set on the wireless remote controller?
The cooling (heating) effect of the air
conditioner was not good
Is the temperature set properly?
Is the inlet, outlet vent of the outdoor unit blocked?
Is the air filter too dirty to cause blockage?
Are windows and doors closed? Is the air speed too low?
Is there other heat source in the room?
The wireless remote controller cannot
work
In the event that the battery is replaced but the wireless remote
control still malfunctions, then open the back cover and press
“ACL” button to make it normal.
When the air conditioner is under abnormal interference or its
functions are changed too frequently, then the wireless remote
controller would works improperly. At this time, it is available to
resume the normal operation through de-energizing and then
energizing the wireless controller again.
Is the controller within the receiving area? or is there blockage?
Check if the voltages of batteries in the wireless remote controller
are sufficient; Otherwise change the batteries.
9.1 Service center
When the following phenomena appeared, please stop operating immediately, cut off the
main power supply of the unit and then contact the service center of the air conditioner.
Harsh sound heard when running;
The fuse or protector opened frequently;
Substance or water pulled in the unit involuntarily;
Water leakage in room;
Power cord overheated;
Abnormal odor is given out when running.

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9.2 After-sales service
When quality or other problems arise upon the purchased air conditioner, please contact the
local service center.
10 Adjusting Method Of The Air Direction
10.1 Adjusting air direction up and down
(1) Controlling the guide louver motor by the wireless remote controller can make the guide
louver swing up and down, or makes the guide louver stop at a certain angle to have air
supplied.
(2) Press the SWING button on the wireless remote controller to make the guide louver
swing up and down; Repress again to stop the operation.
10.2 Adjusting air direction left and right
Moving the vertical louver left and right can adjust the left and right direction of air outlet, or
adjust the air outlet to reach every corner of the room by 3 different outlet directions to make the
indoor temperature more even.