Gree GMV-ND56T/B-T GMV-ND28TS/A-T User manual

Owner's Manual
Air Conditioners
Models:
GMV-ND28TS/A-T GMV-ND36TS/A-T
GMV-ND45TS/A-T GMV-ND50TS/A-T
GMV-ND56TS/A-T GMV-ND63TS/A-T
GMV-ND71TS/A-T GMV-ND80TS/A-T
GMV-ND90TS/A-T GMV-ND112TS/A-T
GMV-ND140TS/A-T
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 [email protected] 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.
Two-way Cassette Indoor Unit
Owner's Manual

Preface
For correct installation and operation, please read all instructions carefully. Before reading the
instructions, please be aware of the following items:
(1) For the safe operation of this unit, please read and follow the instructions carefully.
(2) During operation, total capacity of indoor units should not exceed the total capacity of
outdoor units. otherwise, poor effect of cooling or heating may result.
(3) Direct operators or maintainers should well keep this manual.
(4) 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.
(5) 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.
(6)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.
(7) All graphics in this manual is only for your reference. For sales or production
reasons,these graphics are subject to change by manufacturer without prior notice.
(8) These instructions shall also be available in an alternative format, e.g. on a website.
User Notice
●This appliance can be used by children aged from 8 years and above and persons with
reduced physical ,sensory or mental capabilities or lack of experience and knowledge if
they have been given supervision or instrction concerning use of the appliance in a safe
way and understand the hazards involved .Children shall not play with the
appliance .Cleaning and user maintenance shall not be made by children without
supervision.
Correct Disposal of this product
This marking indicates that this product should not be disposed with other
household wastes throughout the EU. To prevent possible harm to the
environment or human health from uncontrolled waste disposal, recycle it
responsibly to promote the sustainable reuse of material resources. To return
your used device, please use the return and collection systems or contact the
retailer where the product was purchased. They can take this product for
environmental safe recycling.
R410A(R32/125:50/50):2087.5

Contents
1 SAFETY PRECAUTIONS.................................................................................................................................1
2 PRODUCT INTRODUCTION ..........................................................................................................................3
2.1 NAMES OF KEY COMPONENTS..................................................................................................................... 3
2.2 RATED WORKING CONDITION ...................................................................................................................... 3
2.3 UNIT FUNCTIONS.......................................................................................................................................... 3
3 PREPARATIONS FOR INSTALLATION .............................................................................................................4
3.1 STANDARD FITTINGS .................................................................................................................................... 4
3.2 INSTALLATION POSITION SELECTION ........................................................................................................... 5
3.3 REQUIREMENTS OF COMMUNICATION WIRE SELECTION .............................................................................. 5
3.4 WIRING REQUIREMENTS .............................................................................................................................. 6
4 INSTALLATION INSTRUCTIONS.....................................................................................................................7
4.1 INDOOR UNIT INSTALLATION.......................................................................................................................... 7
4.2 REFRIGERANT PIPE CONNECTION............................................................................................................... 9
4.3 DRAINAGE PIPE INSTALLATION AND DRAINAGE SYSTEM TESTING............................................................ 10
4.4 PANEL INSTALLATION .................................................................................................................................. 13
4.5 INSTALLATION OF WIRED CONTROLLER..................................................................................................... 15
5 WIRING WORK..........................................................................................................................................15
5.1 CONNECTION OF WIRE AND PATCH BOARD TERMINAL.............................................................................. 16
5.2 POWER CORD CONNECTION...................................................................................................................... 16
5.3 CONNECTION OF COMMUNICATION WIRE BETWEEN INDOOR UNIT AND OUTDOOR UNIT (OR INDOOR UNIT)
.......................................................................................................................................................................... 17
5.4 CONNECTION OF COMMUNICATION WIRE FOR WIRED CONTROLLER....................................................... 17
5.5 WIRING INSTRUCTIONS OF WIRED CONTROLLER AND INDOOR UNITS NETWORK.................................... 18
6 ROUTINE MAINTENANCE ..........................................................................................................................19
6.1 CLEANING OF FILTER.................................................................................................................................. 20
6.2 MAINTENANCE BEFORE THE SEASONAL USE............................................................................................. 20
6.3 MAINTENANCE AFTER THE SEASONAL USE ............................................................................................... 20
7 TABLE OF ERROR CODES FOR INDOOR UNIT...............................................................................................20
8 DISPLAY OF LIGHT BOARD.........................................................................................................................21
9 TROUBLESHOOTING..................................................................................................................................21

Two-way Cassette Indoor Unit Owner's Manual
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.
Please install the unit
according to
instructions in this
manual. Read this
manual carefully
before starting up or
checking the
machine.
Installation should be
performed by dealer or
qualified technicians. Do
not install the product by
yourself. Improper
installation may result in
water leakage, electric
shock or fire hazard.
Make sure the local
power supply is in
accordance with units
before installation,
and check the power
supply carefully.
This air conditioner must be
properly grounded through
the receptacle to avoid
electric shock.The
grounding wire shouldn't
be connected with gas pipe,
water pipe, lightning
arrester or telephone line.
Please use
specialized
accessories or parts
to carry out
installation,or water
leakage, electric
shock,fire hazard may
resulted.
R410A refrigerant can
produce poisonous gas
once it meets fire, so please
ventilate the room
immediately if refrigerant
leaks out during installation.
Diameter of power
cord must be large
enough. Damaged
power cord and
connecting wire must
be replaced by
specialized electric
cable.
After the power cord is
connected, please install
the cover of electric box to
avoid danger.
Nitrogen must be
charged according to
technical
requirements.
Short circuit is forbidden.
Do not cancel the pressure
switch in case the unit may
be damaged.
For units with wired
controller, do not
connect power supply
until the wired
controller is well
installed. Otherwise,
the wired controller
cannot be used.
When the installation is
finished, please check and
make sure the drain pipe,
pipeline and electric wire
are all well connected in
order to avoid water
leakage, refrigerant
leakage, electric shock or
fire hazard.

Two-way Cassette Indoor Unit Owner's Manual
2
Do not extend fingers or
objects into air outlet or air
return grille.
If you use gas heater or
petroleum heater in the
same room, please open
the door or window to
maintain good air
circulation in case the
room may lack of oxygen.
Never start or stop the air
conditioner by inserting or
removing the power cord.
Do not turn off the air
conditioner until it runs for
at least 5 minutes.
Otherwise, oil-return of the
compressor will be
affected.
Children are not allowed to
operate the air conditioner.
Do not operate the air
conditioner with wet
hands.
Please turn the unit off and
unplug your air conditioner
before cleaning. Otherwise, it
may cause electric shock or
personal injury.
Do not spray water on the
air conditioner or it will
cause malfunction or
electric shock.
Do not expose the air
conditioner directly to water or
place it in a damp or corrosive
environment.
Connect power supply 8
hours before operation.
Do not disconnect power if
you want to stop the unit
in a short period of time,
e.g. in one night. (This is
for protecting the
compressor.)
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 the outer case of air
conditioner.)
During Cooling mode,
indoor temperature should
not be set too low. Keep
the difference between
indoor temp and outdoor
temp within 5°C.
If abnormal condition occurs
(e.g. unpleasant smell),
please turn off the unit at
once and disconnect power
supply. Then contact GREE
service center. If the air
conditioner continues to
operate despite of abnormal
condition, the unit may be
damaged and it may cause
electric shock or fire hazard.)
Do not repair the air
conditioner by yourself.
Improper repair will cause
electric shock or fire
hazard. Please contact
GREE service center and
have it repaired by
professional technicians.

Two-way Cassette Indoor Unit Owner's Manual
3
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.
2 Product Introduction
2.1 Names of Key Components
①②
③
④⑤⑥⑦
No.
①
②
③
④
⑤
⑥
⑦
Name
Drainage
Pipe
Connection
Pipe
Drainage
Device
Air Inlet Grille (With Filter)
Main
Unit
Louver
Panel
2.2 Rated Working Condition
Indoor Side Condition
Outdoor Side Condition
Dry Bulb Temp℃(℉)
Wet Bulb Temp℃(℉)
Dry Bulb Temp℃(℉)
Wet Bulb Temp℃(℉)
Rated Cooling
27(80.6)
19(66.2)
35(95)
24(75.2)
Rated Heating
20(68.0)
15(59.0)
7(44.6)
6(42.8)
Indoor Unit Working Temperature Range: 16°C~ 32°C.
2.3 Unit Functions
Unit Functions
Wired Controller
XK46(Optional)
Remote Controller
YAP1F (Standard)
Remote Controller
YV1L1 (Optional)
Operation Mode (Cooling, Heating,
Fan, Dehumidifying)
Fan Speed Adjustment
Temperature Adjustment
X-fan Function
Quiet Function
Sleep Function
Save Function
E-heater Function
Memory Function
Absence Function
Timer Function
Low Temp Dehumidify Function

Two-way Cassette Indoor Unit Owner's Manual
4
Filter Cleaning Reminding Function
I Feel
Light Function
Swing
Note!
①√: included, X: not included.
②Please refer to the user manual of Wired Controller or Remote Controller for function details.
3 Preparations for Installation
Note: this picture is for reference only, please refer to the actual product; the unit of dimension
is mm.
3.1 Standard Fittings
Please use the supplied standard fittings listed below as instructed.
No.
Name
Appearance
Q'ty
Usage
1
Drainage hose assembly
1
To connect the drainage pipe
2
Special Nut
1
To be used for connecting the
refrigerant pipe
3
Insulation
1
To insulate the gas pipe
4
Insulation
1
To insulate the liquid pipe
5
Sponge
1
To insulate the drain pipe
6
Fastener
4
To fasten the sponge
7
paper pattern for
installation
天花板开口长度1400mm
吊装螺杆间 距261mm
吊装螺杆间 距1252mm
主体宽度5 20mm
天花板开口宽度550mm
主体长度1 198mm
为了您正确 安装和使 用安装用纸 板，请在安 装前仔细
阅读《使用 安装说明 书》中的相 关内容！
安装和使用 安装用纸 板必须由专 业人士进行 操作！
注意事项：
安装用纸板
1
Locate the drill hole on ceiling
8
Tapping screw with
washer
4
Fix paper pattern
9
Remote controller
1+2
To control the indoor unit
10
Washer fixing plate
4
Prevent the washer from falling off
11
corrugated pipe
1
It’s used for bending connection
pipe（Packing materials for 56 or
above models）

Two-way Cassette Indoor Unit Owner's Manual
5
3.2 Installation Position Selection
(1) The location should be able to withstand the weight of unit.
(2) The water can be drained conveniently from drainage pipe.
(3) There should be no obstruction near air inlet and air outlet.
(4) Follow the installation distance required in the fig below to ensure sufficient space for
maintenance.
(5) The installation location should be far from heat sources, flammable or explosive gas, or
smog spread in the air..
（6）The appliance shall not be installed in the laundry.
(7) The indoor unit, outdoor unit, power cord and connection electricity wire should be at least
1m from television and radio in order to prevent interference and noise. (Even though 1m
distance is ensured, there may be noise if the electric wave is too strong.)
Unit: mm
Fig 3.2.1
Notes:
①The unit shall be installed in accordance with national standards or local regulations.
②Only qualified personnel can carry out installation work, please contact with local dealer before
installation..
③Make sure all the installation work completed before energizing.
3.3 Requirements of communication wire selection
Note!
If air conditioner used under strong electronic-magnetic interference circumstance,
STP(shielded twisted pair) communication cable must be adopted.
3.3.1 Selection of communication wire between indoor unit and wired controller
Fig 3.3.1

Two-way Cassette Indoor Unit Owner's Manual
6
Wire type
Total length of
communication wire between
indoor unit and wired
controller (m)
Wire diameter
(mm2)
Wire standard
Remark
Light/Ordinary
polyvinyl
chloride
sheathed
cord.(60227
IEC 52 /60227
IEC 53)
L≤250
2×0.75~2×1.25
IEC
60227-5:2007
1)Total length of
communication cable can't
exceed 250m .
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.
3.3.2 Selection of communication wire between indoor unit and indoor unit (or outdoor
unit)
Fig 3.3.2
Wire type
Total length of
communication wire
between indoor unit and
indoor unit(outdoor unit)
(m/feet)
Wire diameter
(mm2)
Wire standard
Remark
Light/Ordinary
polyvinyl
chloride
sheathed
cord.(60227
IEC 52 /60227
IEC 53) (60227
IEC 52
/60227 IEC 53)
L≤1000
≥2×0.75
IIEC
60227-5:2007
1)If the wire diameter is
enlarged to 2 ×1 mm2, the total
communication cable 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.
3.4 Wiring Requirements
(1) Dimension of power cord and capacity of air switch
Notes:
①The circuit breaker and power cord specification in above sheet are based on max power (max
current) of the unit.
②The power cord specification in above sheet is based on ambient temperature of 40°C.
③The circuit breaker specification in above sheet is based on ambient temperature of 40°C.
④If the working condition is different, please adjust it according to the specification sheet of
circuit breaker.

Two-way Cassette Indoor Unit Owner's Manual
7
Model
Power Supply
Air Switch
Capacity (A)
Minimum
Sectional Area of
Grounding
Wire(mm2)
Minimum
Sectional Area
of Power Cord
(mm2)
GMV-ND28TS/A-T
220~240V-1ph-50Hz
208~230V-1ph-60Hz
6
1
1
GMV-ND36TS/A-T
6
1
1
GMV-ND45TS/A-T
6
1
1
GMV-ND50TS/A-T
6
1
1
GMV-ND56TS/A-T
6
1
1
GMV-ND63TS/A-T
6
1
1
GMV-ND71TS/A-T
6
1
1
GMV-ND80TS/A-T
6
1
1
GMV-ND90TS/A-T
6
1
1
GMV-ND112TS/A-T
6
1
1
GMV-ND140TS/A-T
6
1
1
4 Installation Instructions
4.1 Indoor unit installation
4.1.1 Ceiling opening Dimension and suspension bolt position Unit: mm
Fig 4.1.1 Unit: mm
Model
Indoor
unit(A)
Suspension bolt
pitch(B)
Ceiling
opening(C)
Decoratio
n panel(D)
Outer diameter of
connection pipe(mm)
Liquid pipe
Gas pipe
GMV-ND28TS/A-T
1200
1252
1403
1443
6.35
9.52
GMV-ND36TS/A-T
GMV-ND45TS/A-T
GMV-ND50TS/A-T
1200
1252
1403
1443
6.35
12.7
GMV-ND56TS/A-T
GMV-ND63TS/A-T
GMV-ND71TS/A-T
GMV-ND80TS/A-T
1200
1252
1403
1443
9.52
15.9