Owner’s Manual
SPLIT APPLIANCE
22-21 SEER
18 000 to 42 000 BTU/hr
Models :
GWHD(18)ND3MO
GWHD(24)ND3MO
GWHD(30)ND3MO
GWHD(36)ND3MO
GWHD(42)ND3MO
Please read this owner’s manual carefully
before operating the unit and keep it for future reference.
The aesthetic and dimensional characteristics, technical data and accessories of this appliance
may be changed without notice.
INSTALLER
GENERAL
INFORMATION
CONTENTS
GENERAL INFORMATION
Conformity And Range
1
Warning
2
The Instructions Before Use
5
Name of Parts
6
Outdoor Unit Working Temperature Range
6
Electrical Connections
7
Installing The Outdoor Unit
11
Bleeding
11
Maintenance
12
Installation Dimension Diagram
12
Check After Installation
13
The products in this manual may be different from the real one, according to different
models, some models have the displayer, and some models are without the displayer. For
the position and shape of the displayer please refer to the product in your possession.
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 you need to install, move or maintain the appliance, please contact dealer or local service
center first. The appliance must be installed, moved or maintained by appointed unit.
Otherwise, it may cause serious damage or personal injury or death.
When refrigerant leaks or requires discharge during installation, maintenance, or disassembly,
it should be handled by certified professionals or otherwise in compliance with local laws and
regulations.
EXPLANATION OF SYMBOLS
GENERAL INFORMATION
DANGER
Indicates a hazardous situation that, if not avoided, will
result in death or serious injury.
WARNING
Indicates a hazardous situation that, if not avoided, could
result in death or serious injury.
CAUTION
Indicates a hazardous situation that, if not avoided, may
result in minor or moderate injury.
NOTICE
Indicates important but not hazard-related information,
used to indicate risk of property damage.
Indicates a hazard that would be assigned a signal word
WARNING or CAUTION.
EXCEPTION CLAUSES
GENERAL INFORMATION
Manufacturer will bear no responsibilities when personal injury or
property loss is caused by the following reasons.
1. Damage the product due to improper use or misuse of the product;
2. Alter, change, maintain or use the product with other equipment without
abiding by the instruction manual of manufacturer;
3. After verification, the defect of product is directly caused by corrosive gas;
4. After verification, the defects are due to improper operation during
transportation of product;
5. Operate, repair, maintain the unit without abiding by instruction manual or
related regulations;
6. After verification, the problem or dispute is caused by the quality specification
or performance of parts and components that produced by other
manufacturers;
7. The damage is caused by natural calamities, bad using environment or
force majeure.
GENERAL INFORMATION
CONFORMITY AND RANGE
Please read this owner's manual carefully before operating the unit and keep it
carefully for consultation.
Only use the appliance 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.
1
GENERAL INFORMATION
WARNING
Operation and Maintenance
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 instruction
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.
Do not connect appliance to multi-purpose socket. Otherwise, it may
cause fire hazard.
Disconnect power supply when cleaning appliance. Otherwise, it may
cause electric shock.
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.
Do not wash the appliance with water to avoid electric shock.
Do not spray water on indoor unit. It may cause electric shock or malfunction.
After removing the filter, do not touch fins to avoid injury.
Do not use fire or hair dryer to dry the filter to avoid deformation or fire hazard.
Maintenance must be performed by qualified professionals. Otherwise, it may
cause personal injury or damage.
Do not repair appliance by yourself. It may cause electric shock or damage.
Please contact dealer when you need to repair appliance.
Do not extend fingers or objects into air inlet or air outlet. It may cause personal
injury or damage.
Do not block air outlet or air inlet. It may cause malfunction.
Do not spill water on the remote controller, otherwise the remote controller may
be broken.
When below phenomenon occurs, please turn off the appliance and disconnect
power immediately and then contact the dealer or qualified professionals for
service.
Power cord is overheating or damaged.
There’s abnormal sound during operation.
Circuit break trips off frequently.
The appliance gives off burning smell.
Indoor unit is leaking.
2
GENERAL INFORMATION
WARNING
If the appliance operates under abnormal conditions, it may cause
malfunction，electric shock or fire hazard.
When turning on or turning off the unit by emergency operation switch, please
press this switch with an insulating object other than metal.
Do not step on top panel of outdoor unit, or put heavy objects. It may cause
damage or personal injury.
Wiring
Installation must be performed by qualified professionals. Otherwise, it may
cause personal injury or damage.
Must follow the electric safety regulations when installing the unit.
According to the local safety regulations, use qualified power supply circuit
and circuit breaker.
Do install the circuit breaker. If not, it may cause malfunction.
An all-pole disconnection switch having a contact separation of at least 1/8’’
(3mm) in all poles should be connected in fixed wiring.
Including a circuit breaker with suitable capacity, please note the following table.
Air switch should be included magnet buckle and heating buckle function, it can
protect the circuit-short and overload.
The appaliance should be properly grounded. Incorrect grounding may
cause electric shock.
Don't use unqualified power cord.
Make sure the power supply matches with the requirement of the appliance.
Unstable power supply or incorrect wiring may result in electric shock, fire
hazard or malfunction. Please install proper power supply cables before using
the appliance.
Properly connect the live wire, neutral wire and grounding wire. Be sure to cut
off the power supply before proceeding any work related to electricity and
safety.
Do not turn on the power before finishing installation.
If the supply cord is damaged, it must be replaced by qualified persons in
order to avoid a hazard.
The temperature of refrigerant circuit will be high, please keep the
interconnection cable away from the copper tube.
The appliance shall be installed in accordance with national wiring regulations.
Installation must be performed in accordance with the requirement of NEC and
CEC by authorized personnel only.
3
GENERAL INFORMATION
WARNING
The heat pump is a first class electric appliance. It must be properly grounding
with specialized grounding device by a professional. Please make sure it is
always grounded effectively, otherwise it may cause electric shock.
The yellow-green wire in appliance is grounding wire, which can't be used for
other purposes.
The grounding resistance should comply with national electric safety regulations.
The appliance must be positioned so that the plug is accessible.
All wires of indoor unit and outdoor unit should be connected by a professional.
If the length of power connection wire is insufficient, please contact the
supplier for a new one. Avoid extending the wire by yourself.
For the appliance with plug, the plug should be reachable after finishing
installation.
For the appliance without plug, a circuit breaker must be installed in the line.
If you need to relocate the appliance to another place, only a qualified person can
perform the work. Otherwise, it may cause personal injury or damage.
Select a location which is out of reach for children and far away from animals or
Plants. If it is unavoidable, please add the fence for safety purpose.
The indoor unit should be installed close to the wall.
4
THE INSTRUCTIONS BEFORE USE
GENERAL INFORMATION
WARNING
★ When having a burning smell or ★ The power supply must adopt the
smoke,please turn off the power
supply and contact with the service center.
special circuit that with air switch
protection and assure it has enough capacity. The unit will be
turned on or off automatically
according to your
requirement,please do not turn on
or turn off the unit frequently,otherwise damage may be
caused to the unit.
★ Never cut off or damage power
cables and control wires. If the
power cable and signal control
wire were damaged, changes
must be made by professional.
If the abnormity still exists, the unit
may be damaged, and may cause
electric shock or fire.
★ Power must adopts the special
circuit to prevent fire.
Otherwise, it can cause electric
shock or fire.
★ When cleaning, it is necessary
to turn off the power supply.
Cut off power supply
★ Disconnect the power supply if
★ Never damage the electric wire
you are putting the appliance
out of use for a long period.
or use the electric wire which is
not appointed.
Otherwise, the accumulated
Otherwise, it will cause
dusts may cause overheating or
overheating or fire.
fire.
★ Rated voltage of this appliance ★ Don't attempt to repair the
appliance by yourself.
is 220-240V, 60Hz, The compressor will vibrate sharply if the
voltage is too low. It may cause
damage to the refrigerating
system. Electrical component are
easy to damage if the voltage is
too high.
Otherwise, it may cause
electric shock or damage.
The wrong repair will lead to an
electric shock or fire,so you should
contact the service center to repair.
★ Please note whether the insta- ★ Don't step on the top of the
★ Grounding: The unit must be
lled stand is firm enough or not.
If it is damaged, it may lead to the
fall of the unit and cause the injury.
outdoor unit or place something
on it.
They may fall off the outdoor unit
and be dangerous.
5
reliably grounded. The ground
cable shall be connected to the
special grounding device in the
construction.
NAME OF PARTS
GENERAL INFORMATION
WARNING
Be sure to cut off the power supply before cleaning the appliance; otherwise, electric shock might happen.
Wetting of appliance may cause the risk of electric shock. Make sure not to wash your appliance in any
case.
Volatile liquids such as thinner or gasoline will cause damage to the appearance of the appliance. (Only use
soft dry cloth moist cloth clean the appliance cabinet).
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.
The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the
copper tube.
1
OUTDOOR UNIT
No.
Description
1
Air outlet grille
2
Valve
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.
OUTDOOR UNIT WORKING TEMPERATURE RANGE
Maximum cooling
Maximum heating
2
GENERAL INFORMATION
Indoor side DB/WB(°C/°F) Outdoor side DB/WB(°C/°F)
26.7/19.4(80/67)
43/24(109/75)
26.7/-(80/-)
23.9/18.3(75/65)
● The operating temperature range (outdoor temperature) for cooling only unit is
-30°C ~ 43°C(-22°F ~ 109°F); for heat pump unit is -30°C ~ 43°C(-22°F ~ 109°F).
6
ELECTRICAL CONNECTIONS
INSTALLER
GWHD(18)ND3MO
1. Remove the handle at the right side plate of the
outdoor unit (one screw).
2. Remove the cable clamp, connect the power
connection 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 the
one of indoor unit.
3. Fix power connection wire by wire clamp.
4. Ensure wire has been fixed well.
5. Install the handle.
Including an air switch with suitable capacity,
please note the following table. Air switch
should include a magnet buckle and heating
buckle function, it can protect the circuit-short
and overload. (Caution: please do not use the
fuse only to protect the circuit)
Heat Pump
Circuit capacity
GWHD(18)ND3MO
20A
An all-pole disconnection switch having a contact
separation of at least 1/8’’ (3mm) in all poles
should be connected in fixed wiring.
Wrong wire connection may cause malfunction of
some electric components. After fixing cable,
ensure that there is enough space between
connection to fixed point.
The connection pipes and the connection wirings of
the unit A, unit B must be corresponding to each
other respective.
The appliance shall be installed in accordance with
national wiring regulations.
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.
USER
HANDLING
After having removed the packaging, check that the
contents are intact and complete.
Handling must be done by suitably equipped qualified
technical personnel using equipment that is for suitable
the weight of the appliance.
The outdoor unit must always be kept upright.
7
ELECTRICAL CONNECTIONS
1. Remove the handle at the right side plate of the
outdoor unit (one screw).
2. Remove the cable clamp, connect the power
connection 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.
3. Fix power connection wire by wire clamp.
4. Ensure wire has been fixed well.
5. Install the handle.
Including an air switch with suitable capacity,
please note the following table. Air switch
should be included magnet buckle and heating
buckle function, it can protect the circuit-short
and overload. (Caution: please do not use the
fuse only to protect the circuit)
Heat Pump
Circuit capacity
GWHD(24)ND3MO
25A
INSTALLER
An all-pole disconnection switch having a contact
separation of at least 1/8’’ (3mm) in all poles
should be connected in fixed wiring.
Wrong wire connection may cause malfunction of
some electric components. After fixing cable,
ensure that there is enough space between
connection to fixed point.
The connection pipes and the connection 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.
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.
8
ELECTRICAL CONNECTIONS
INSTALLER
1. Remove the handle at the right side plate of the
outdoor unit (one screw).
2. Remove the cable clamp, connect the power
connection 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.
3. Fix power connection wire by wire clamp.
4. Ensure wire has been fixed well.
5. Install the handle.
Including an air switch with suitable capacity,
please note the following table. Air switch
should be included magnet buckle and heating
buckle function, it can protect the circuit-short
and overload. (Caution: please do not use the
fuse only to protect the circuit)
Heat Pump
Circuit capacity
GWHD(30)ND3MO
35A
GWHD(36)ND3MO
45A
An all-pole disconnection switch having a contact
separation of at least 1/8’’ (3mm) in all pole
should be connected in fixed wiring.
Wrong wire connection may cause malfunction of
some electric components. After fixing cable,
ensure that there is enough space between
connection to fixed point.
The connection pipes and the connection 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.
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.
9
ELECTRICAL CONNECTIONS
INSTALLER
1. Remove the handle at the right side plate of the
outdoor unit (one screw).
2. Remove the cable clamp, connect the power
connection 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.
3. Fix power connection wire by wire clamp.
4. Ensure wire has been fixed well.
5. Install the handle.
Including an air switch with suitable capacity,
please note the following table. Air switch
should be included magnet buckle and heating
buckle function, it can protect the circuit-short
and overload. (Caution: please do not use the
fuse only to protect the circuit)
Heat Pump
Circuit capacity
GWHD(42)ND3MO
45A
An all-pole disconnection switch having a contact
separation of at least 1/8’’ (3mm) in all pole
should be connected in fixed wiring.
Wrong wire connection may cause malfunction of
some electric components. After fixing cable,
ensure that there is enough space between
connection to fixed point.
The connection pipes and the connection wirings
of the unit A, unit B, unit C, unit D and unit E must be
corresponding to each other respective.
The appliance shall be installed in accordance with
national wiring regulations.
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.
10
INSTALLING THE OUTDOOR UNIT
INSTALLER
Location
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
Use suitable connecting pipes and equipment for
the refrigerant R410A.
Models(m)
18K
Max. connection pipe length 40
Max. connection pipe length
20
(Simple one indoor unit)
24K
60
30K
80
36K
80
42K
100
20
25
25
25
Caution: Installation Must be Performed in
Accordance with the NEC/CEC by Authorized
Personnel Only.
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
heating mode. In order not to disturb neighbours
and to respect the environment, install a drain
fitting and a drain hose to channel the condensate
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.
The refrigerant pipes must not exceed the maximum
heights 15m(18K&24K), 25m(30K&36K&42K).
Wrap all the refrigerant pipes and joints.
Tighten the connections using two wrenches working in opposite directions.
BLEEDING
INSTALLER
Humid air left inside the refrigerant circuit can cause compressor 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 3way 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. Disconnect the vacuum pump hose.
(8) Replace and tighten all the caps on the valves.
Diamete
r
1/4''
Twisting moment
(N.m)
15-20
3/8''
35-40
5/8''
1/2''
60-65
45-50
3/4''
70-75
Vacuum pump
(8) Secure
INDOOR
UNIT
Refrigerant fluid direction of fiow
When the adaptor is required for the connection of indoor
unit and the 24K、30K、36K、42K outdoor unit, the method
of pipe connection as follows:
3-way valve
Openby 1/4 turn
Turn to open fully
Service
inlet
(2)Turn
(8) Secure
conversion joint
11
2-way valve
(7)Turn to open fully
Valve cap
(2)Turn
(2)Turn
Valve cap
(8) Secure
Connect to the
indoor unit
MAINTENANCE
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.
INSTALLATION DIMENSION DIAGRAM
INSTALLER
The installation must be done by trained and qualified service personnel with reliability according to this
manual.
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.
Fix the support of outdoor unit (select it according to the actual installation situation)
1. Select installation location according to the house structure.
2. Fix the support of outdoor unit on the selected location with expansion
screws.
NOTICE:
Take sufficient protective measures when installing the outdoor unit.
Make sure the support can withstand at least four times of the unit
weight.
The outdoor unit should be installed at least 3cm above the floor in
order to install drain joint. (for the model with heating tube, the
installation height should be no less than 20cm.)
For the unit with cooling capacity of 2300W ~ 5000W, 6 expansion
screws are needed, for the unit with cooling capacity of 6000W~
8000W, 8 expansion screws are needed; for the unit with cooling
capacity of 10000W~16000W, 10 expansion screws are needed.
As for the shape of drainage joint, please refer to the current product.
Do not install the drainage joint in the severe cold area. Otherwise,
it will be frosted and then cause malfunction.
12
at least 3 cm above the floor
CHECK AFTER INSTALLATION
INSTALLER
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 inadequate 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
out- door 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.
13
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