Gree WHD(18)ND3CO User manual

MODELS:
GWHD(18)ND3CO
GWHD(24)ND3CO
GWHD(30)ND3CO
Change for Life
Split Air Conditioner
Owner's Manual
Residential Air Conditioners
Thank you for choosing Residential Air Conditioners,please read this owner’s
manual carefully before operation and retain it for future reference.
Add: West Jinji Rd, Qianshan, Zhuhai, Guangdong, China, 519070
Tel: [phone] Fax: [phone]
E-mail: [email protected] www.gree.com
GREE ELECTRIC A PPLIANCES, INC. OF ZHUHAI
66163066

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Technical Data
Electrical Connections
Installing The Outdoor Unit
Maintenance
Installation Dimension Diagram
Check After Installation
Bleeding
Conformity And Range
The Instructions Before Use
Name of Parts
Outdoor Unit Working Temperature Range
GENERAL
INSTALLER INFORMATION
CONTENTS
1
In line with the company’s policy of continual product improvement, the aesthetic and dimensional characteristics,
technical data and accessories of this appliance may be changed without notice.
CONFORMITY AND RANGE GENERAL INFORMATION
GENERA L INFORMATION
Please read this owner's manual carefully before operating the unit and keep it carefully for consultation.
The products in this manual may be different with the real one, according to different
models, some models have displayer and some models without displayer, the position
and shape of the displayer please refer to the real one.
The air conditioner you have purchased is in conformity with the following American Directives
UL1995:
Only use the air conditioner as instructed in this booklet. These instructions are not intended to cover every
possible condition and situation. As with any electrical household appliance, common sense and caution are
therefore always recommended for installation, operation and maintenance.

2
WARNING
When having a burning smell
or smoke, please turn off the power
supply and contact with the service
may be damaged, and may cause
center .
If the abnormity still exists, the unit
electric shock or fire.
Power must adopts the special
circuit to prevent fire.
Otherwise, it can cause electric
shock or fire.
Otherwise, the accumulated dusts
may cause overheating or fire.
Never damage the electric wire or
use the electric wire which is not
appointed.
Otherwise, it will cause overheating or
fire.
Cut off power supply
THE INSTRUCTIONS BEFORE USE GENERA L INFORMATION
Don't attempt to repair the air
conditioner by yourself.
Please note whether the installed
stand is firm enough or not.
Don't step on the top of the outdoor
unit or place something on it.
As falling off the outdoor unit can be
dangerous.
If it is damaged, it may lead to the
fall of the unit and cause the injury.
The wrong repair will lead to an electric
shock or fire, so you should contact the
service center to repair.
Earthing: The unit must be reliably
earthed. The earthing cable shall
be connected to the special earthing
device in the construction.
Never cut off or damage power
cables and control wires. If the
power cable and signal control wire
were damaged, change them by
professional.
When cleaning, it is necessary
to stop driving and turn off the
power supply.
Otherwise, it may cause electric
shock or damage.
Disconnect the power supply if
long putting the air conditioner out
of use.
The power supply must adopt
the special circuit that with air switch
protection and assure it has enough
capacity. The unit will be turned on or
off according to your requirement
automatically, please do not turn on
or turn off the unit frequently, otherwise
disadvantage effect may be caused
to the unit.
Rated voltage of this air conditioner
208-230V,60Hz, The compressor
will vibrate sharply if the voltage is
too low, resulting in damage to
refrigerating system. Electrical
component are easy to damage if
the voltage is too high.

Note:the above figures are only intended to be a simple
diagram of the appliance and may not correspond to
the appearance of the units that have been purchased.
OUTDOOR UNIT
N o. Description
1 Air outlet grille
2Valve
The temperature of refrigerant circuit will be high,please keep the
interconnection cable away from the copper tube.
Be sure to cut off the power supply before cleaning the air conditioner;
otherwise electric shock might happen.
Wetting of air conditioner may cause the risk of electric shock. Make
sure not to wash your air conditioner in any case.
Volatile liquids such as thinner or gasoline will cause damage to the
appearance of air conditioner. (Only use soft dry cloth moist cloth clean
the air conditioner cabinet).
Do not dispose this product as unsorted municipal waste.
Collection of such waste separately for special treatment
is necessary.
If the supply cable is damaged, it must be replaced by the manufacturer
or its service agent or a similarly qualified person in order to avoid a hazard.
OUTDOOR UNIT
N o. Description
1 Air outlet grille
2Valve
1
2
3
GENERAL INFORMATION
The temperature of refrigerant circuit will be high,please keep the interconnection cable away
from the copper tube.
Note:the above figures are only intended to a simple
diagram of the appliance and may not correspond to the
appearance of the units that have been purchased.
1
2
GWHD(24)ND3CO,GWHD(30)ND3CO
GWHD(18)ND3CO
NAME OF PARTS
Warning
Warning
Wetting of air conditioner may cause the risk of electric shock. Make sure not to wash your
air conditioner in any case.
Be sure to cut off the power supply before cleaning the air conditioner; otherwise electric
shock might happen.
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.
Volatile liquids such as thinner or gasoline will cause damage to the appearance of
air conditioner. (Only use soft dry cloth moist cloth clean the air conditioner cabinet).

Maximum cooling
Minimum cooling
Maximum heating
Minimum heating
OutdoorsideDB/WB( )
48/-
-5/-
27/-
-15/-
OUTDOOR UNIT WORKING TEMPERATURE RANGE GENERALINFORMATION
TECHNICAL DATA GENERAL INFORMATION
4
TECHNICALDATA GENERA L INFORMATION
P
L
A
B
H
Minimum power cable section
40 40
4.0
g
mm
mm
mm
mm
mm
L
P
H
A
B
4.0
Fuse or air switch
2200 2200
890
362
700
560
368
MODE GWHD(24)ND3CO
GWHD(18)ND3CO
208/230V/1~60Hz
mm2
Refrigerant gas(R410A)
GWHD(30)ND3CO
Minimum power cable section
25
2.5
g
mm
mm
mm
mm
mm
L
P
H
A
B
Fuse or air switch
1350
818
378
596
550
354
MODE
Electricity supply
Electrical data
Electrical data
Electricity supply
208/230V/1~60Hz
mm2
Refrigerant gas(R410A)
Size and clearance
Size and clearance
P
L
A
H
B
c

All power cables and connection cables must be protected with conduits.
Wrong wire connection may cause malfunction of some
electric components.After fixing cable, ensure that
An all-pole disconnection switch having a contact
separation of at least 3mm in all pole should be
connected in fixed wiring.
leads between connection to fixed point have some space.
2.
3.
4.
5.
Remove the cable clamp, connect the connection
1. R emove the handle at the right side plate of the
outdoor unit (six screw).
Fix power connection wire by wire clamp.
Ensure wire has been fixed well.
Install the handle.
ELECTRICAL CONNECTIONS INSTALLER
the unit A and unit B must be corresponding to each
other respective.
national wiring regulations.
To the power supply
To unit B
cable cable
To unit A
5
GWHD(18)ND3CO
GWHD(18)ND3CO
L1 L2
L1
L1
L2
L2
.
ELECTRICAL CONNECTIONS INSTALLER
cable cable cable
5
power
cable and power cable with the terminal at the row of
connection and fix the connection. The fitting line
distributing must be consistent with the indoor unit
terminal of line bank.
Wiring should meet that of indoor unit.
The connection pipes and the connectiong wirings of
The appliance shall be installed in accordance with
Note: the above figures are only intended to be a simple
diagram of the appliance and may not correspond to the
appearance of the units that have been purchased.
connecting connecting

6
2 .
3.
4.
5.
Remove the cable clamp, connect the connection cable
and power cable with the terminal at the row of connection
and fix the connection. The fitting line distributing must be
consistent with the indoor unit terminal of line bank.
1. Remove the handle at the right side plate of the
outdoor unit (ten screw).
Wiring should meet that of indoor unit.
Fix power connection wire by wire clamp.
Ensure wire has been fixed well.
Install the handle.
ELECTRICAL CONNECTIONS INSTALLER
GWHD(24)ND3CO
Wrong wire connection may cause malfunction of some
electric components.After fixing cable, ensure that
An all-pole disconnection switch having a contact
separation of at least 3mm in all pole should be
connected in fixed wiring.
leads between connection to fixed point have some space.
The connection pipes and the connectiong wirings of
the unit A ,unit B and unit C must be corresponding to each
other respective.
The appliance shall be installed in accordance with
national wiring regulations.
Do not install the outdoor unit where it is exposed
to the sunlight.
Note: the above figures are only intended to be a simple
ehtotdnopserroctonyamdnaecnailppaehtfomargaid
appearance of the units that have been purchased.
To the power supply
To unit B
To unit A
cable
connection
power connection
cable
cable
To unit C
connection
cable
Outdoor unit
Indoor unit
L1 L2
L1
L1
L2
L2
Power cable
A
B
C
D
connection cable
connection cable
connection cable
connection cable
1) The power cable should be put in from the hole under
connection cable cover.
2) If connecting with two indoor units, the connection cable
should be put in from hole A and hole B.
3) If connecting with three indoor units, the connection cable
should be put in from hole A , B and C.
4) If connecting with four indoor units, the connection cable
should be put in from hole A, B , C and D.
All power cables and connection cables must be protected with conduits.

2 .
3.
4.
5.
1. Remove the handle at the right side plate of the
outdoor unit (ten screw).
Fix power connection wire by wire clamp.
Ensure wire has been fixed well.
Install the handle.
ELECTRICAL CONNECTIONS INSTALLER
7
Wrong wire connection may cause malfunction of some
electric components.After fixing cable, ensure that
An all-pole disconnection switch having a contact
separation of at least 3mm in all pole should be
connected in fixed wiring.
leads between connection to fixed point have some space.
The connect ion pipes and the connectiong wirings of
the unit A ,unit B,unit C and unit D must be corresponding
to each other respective.
The appliance shall be installed in accordance with
national wiring regulations.
Do not install the outdoor unit where it is exposed
to the sunlight.
HANDLING USER
GWHD(30)ND3CO
Power cable
A
B
C
D
connection cable
connection cable
connection cable
connection cable
1) The power cable should be put in from the hole under
connection cable cover.
2) If connecting with two indoor units, the connection cable
should be put in from hole A and hole B
3) If connecting with three indoor units, the connection cable
should be put in from hole A , B and C
4) If connecting with four indoor units, the connection cable
should be put in from hole A, B , C and D.
All power cables and connection cables must be protected with conduits.
To the power supply
To unit B
To unit A
connection
cable
connection
cable
To unit C
connection
cable
To unit D
connection
cable
Outdoor unit
Indoor unit
L1 L2
L1
L1
L2
L2
N(1) 2 3 N(1) 2 3 N(1) 2 3 N(1) 2 3
AB C D
power
cable
After having removed the packaging, check that the
contents are intact and complete.
The outdoor unit must always be kept upright.
Handling must be done by suitably equipped qualified
technical personnel using equipment that is for suitable
the weight of the appliance .
Remove the cable clamp, connect the connection cable
and power cable with the terminal at the row of connection
and fix the connection. The fitting line distributing must be
consistent with the indoor unit terminal of line bank.
Wiring should meet that of indoor unit.

Vacuum pump
INSTALLER
Humid air left inside the refrigerant circuit can cause com-
pressor malfunction. After having connected the indoor
and outdoor units, bleed the air and humidity from the
refrigerant circuit using a vacuum pump.
(1) Unscrew and remove the caps from the 2-way and 3-
way valves.
(2) Unscrew and remove the cap from the service valve.
(3) Connect the vacuum pump hose to the service valve.
(4) Operate the vacuum pump for 10-15 minutes until an
absolute vacuum of 10 mm Hg has been reached.
(5) With the vacuum pump still in operation, close the
low-pressure knob on the vacuum pump coupling. Stop
the vacuum pump.
(6) Open the 2-way valve by 1/4 turn and then close it
after 10 seconds.Check all the joints for leaks using
liquid soap or an electronic leak device.
(7) Turn the body of the 2-way and 3-way valves. Discon-
nect the vacuum pump hose.
(8) Replace and tighten all the caps on the valves.
BLEEDING INSTALLER
INDOOR
UNIT
Vacuum pump Vacuum pump
Connect to the
indoor unit
Location
Twisting moment (N.m)
35-40
60-65
45-50
70-75
Φ12
Φ19
Diameter (mm)
Φ9.52
Φ16
15-20
Φ6
(9) If the specification of outdoor unit gas valve is 3/8＂,
but curstomer needs to install 1/2＂indoor unit so that
it is need to use a “pipe joint subassembly” (Code 06643008)
to make a conversion joint with outdoor unit gas valve and
connection pipe, as show in following.
conversion joint
Refrigerant fluid direction of flow
3-way valve
2-way valve
Service
inlet
(2)Turn
(8) Secure
(7)Turn to open fully
(2)Turn
(8) Secure
Valve cap
(6) Open by 1/4 turn
(7)Turn to open fully
(2)Turn
(8) Secure
Valve cap
8
Drain-water hole
Bottom frame
Drain plug
Hose (available commercially,
inner dia. 16mm)
Drain connecter
Use bolts to secure the unit to a flat, solid floor.
When mounting the unit on a wall or the roof, make
sure the support is firmly secured so that it cannot
move in the event of intense vibrations or a strong
wind.
Do not install the outdoor unit in pits or air vents
Installing the pipes
Install the drain fitting and the drain hose(for
model with heat pump only)
Condensation is produced and flows from the outdoor unit
when the appliance is operating in the heating mode. In order
not to disturb neighbours and to respect the environment,
install a drain fitting and a drain hose to channel the conden-
sate water. Install the drain fitting and rubber washer on the
outdoor unit chassis and connect a drain hose to it as shown
in the figure.
Use suitable connecting pipes and equipment for the
refrigerant R410A.
Wrap all the refrigerant pipes and joints.
Tighten the connections using two wrenches working
in opposite directions.
Caution: Installation Must be Performed in Accordance
with the NEC/CEC by Authorized Personnel Only
Models(m) 18K 24/30K
Max. connection pipe length 20 70
Max. connection pipe length(Simple
one indoor unit) 10 20
The refrigerant pipes must not exceed the maximum
heights 5m(18K) or 10m(24K&30K).
INSTALLING THE OUTDOOR UNIT

MAINTENANCE INSTALLER
INSTALLATION DIMENSION DIAGRAM
The installation must be done by trained and qualified service personnel with reliability according to this manual.
30cm
Space to the cover
or above
30cm
50cm
200cm
or more
Space to the cover
(Air inlet side)
or above
or above
Space to the wall
(Air outlet side)
or above
50cm
This is just the schematic plan, please refer to the actual product.
9
GWHD(18)ND3CO
GWHD(24)ND3CO, GWHD(30)ND3CO
30cm
(Air inlet side)
or above
50cm
or above
Space to the wall
200cm
(Air outlet side)
or above
30cm
Space to the cover
or above
or more
Space to the cover
50cm
INSTALLER
Use suitable instruments for the refrigerant R410A.
Do not use any other refrigerant than R410A.
Do not use mineral oils to clean the unit.
Contact service center before installation to avoid the malfunction due to unprofessional installation.
When picking up and moving the units, you must be guided by trained and qualified person.
Ensure that the recommended space is left around the appliance .

INSTALLER
CHECK AFTER INSTALLATION
Check Items Problems Owing to Improper Installation
Is the installation reliable? The unit may drop, vibrate or make noises
Has the gas leakage been checked? May cause unsatisfactory cooling (heating)
effect
Is the thermal insulation of the unit
sufficient?
May cause condensation and water dropping
Is the drainage smooth? May cause condensation and water dropping
Does the power supply voltage accord
with the rated voltage specified on the
nameplate?
The unit may bread down or the components
may be burned out
Are the lines and pipelines correctly
installed?
The unit may bread down or the components
may be burned out
Has the unit been safely grounded? Risk of electrical leakage
Are the models of lines in conformity
with requirements?
The unit may bread down or the components
may be burned out
Are there any obstacles near the air
inlet and outlet of the indoor and outdoor
units?
The unit may bread down or the components
may be burned out
Have the length of refrigerating pipe
and refrigerant charge amount been
recorded?
It is not easy to decide the charge amount
of refrigerant.
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