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MINI SPLIT AIR CONDITIONER
Installation & Owner's Manual
Original Instructions
Mini Split Air Conditi oner
Thank you for choosing our product.
Please read this Installation and Owner’s Manual carefully before installing and operating and
retain it for future reference.
Copies of this manual may be found at:
www.greecomfort.com/resources/dealer-resources-current-product/
VIRU30HP230V1A
VIRU36HP230V1A
Content
Operation Notices
Precautions............................................................................................................ 1
Screen Operation Guide
Parts name ............................................................................................................ 6
Maintenance
Emergency operation .......................................................................................... 16
Malfunction
Clean and maintenance....................................................................................... 16
Operation of wireless remote controller................................................................. 7
Introduction for icons on display screen................................................................. 7
Operation of wireless remote controller................................................................. 8
Installation Notice
Malfunction analysis ............................................................................................ 19
Installation dimension diagram ............................................................................23
Tools for installation. ............................................................................................25
Selection of installation location ..........................................................................25
Installation
Requirements for electric connection .................................................................. 26
Installation of indoor unit...................................................................................... 27
Installation of outdoor unit ................................................................................... 32
Vacuum pumping. ................................................................................................ 35
Leakage detection ...............................................................................................35
Test and operation
Check after installation ........................................................................................36
Test operation. .....................................................................................................36
......................................................................... 37
Attachment
Configuration of connection pipe
Pipe expanding method ....................................................................................... 39
Safety precautions for installing and relocating the unit ................................... 24
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 it needs to install, move or maintain the air conditioner, please contact dealer or local service center
to conduct it at first. Air conditioner must be installed, moved or maintained by appointed unit.
Otherwise, it may cause serious damage or personal injury or death.
Explanation of Symbols
Exception Clauses
Indicates a hazardous situation that, if not avoided, will
Manufacturer will bear no responsibilities when personal injury or
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;
product;
4.After verification, defects are due to improper operation during transportation of
regulations;
5.Operate, repair, maintain the unit without abiding by instruction manual or related
performance of parts and components that produced by other manufacturers;
6.After verification, the problem or dispute is caused by the quality specification or
majeure.
7.The damage is caused by natural calamities, bad using environment or force
3.After verification, the defect of product is directly caused by corrosive gas;
property loss is caused by the following reasons.
result in death or serious injury.
Indicates a hazardous situation that, if not avoided, could
result in death or serious injury.
Indicates a hazardous situation that, if not avoided, may
result in minor or moderate injury.
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.
DANGER
WARNING
CAUTION
N OT IC E
● Power cord is overheating or damaged.
● Any abnormal sound during operation.
● Circuit breaker trips frequently.
● Air conditioner gives off burning smell.
● Indoor unit is leaking.
Precautions
WARNING
If the air conditioner operates abnormally,
it may
malfunction, creating electric shock or a fire hazard.
When turning on or off the unit using the emergency
switch, press with an insulated
(not metal) object.
Do not step on or place heavy objects on the outdoor
unit top panel. It could cause damage or personal
injury.
Maintenance must be performed by qualified
professionals. Otherwise, it may cause personal injury
or damage.
Do not repair air conditioner by yourself. It may cause
electric shock or damage. Please contact a licensed
HVAC contractor whenever repair is needed.
To prevent possible personal injury or damage, keep
fingers and objects clear of air inlet or outlet.
For proper air flow, keep air outlet and inlet free of
obstructions.
Do not spill water on the remote controller
, controller
may malfunction.
When any of the following occurs, please turn off air
conditioner and disconnect power immediately and
contact a licensed HVAC technician for service.
2
Precautions
WARNING
Installation must be performed by licensed, qualified
professionals.
Follow all electric safety regulations and codes when
installing the unit.
According to the local code, use qualified power
supply circuit wiring and circuit breakers.
Install circuit breakers to protect you and your equipment.
An all-pole disconnectswitch having a contact separation
of
at least 3mm in all poles should be used.
Including an
circuit breaker with suitable capacity, per
the following
table.
A typical magnetic or temperature activated breaker will
protect against short circuits and overloads.
This Air Conditioner should be properly grounded.
Incorrect grounding may cause electric shock.
Don't use an improperly sized power cord.
Make sure the power supply matches with the
requirement of air conditioner.
Unstable power supply or
incorrect wiring can cause the
equipment to malfunction. Please install proper power
supply cables before using the air conditioner.
Follow wiring instructions to properly connect the load,
neutral and ground wires to terminals.
Be sure to disconnect the power supply before doing
any electrical or maintenance work.
Attachment
3
Precautions
WARNING
Do not turn on the power before finishing installation.
If the supply cord is damaged, it must be replaced by
the manufacturer or qualified licensed professionals in
order to avoid a hazard.
The temperature of refrigerant circuit will be high, please
keep the interconnecting wire away from the copper
tubing.
The appliance shall be installed in accordance with
national/local wiring codes/regulations.
Installation must be performed in accordance with the
requirements of NEC and CEC by authorized
personnel only.
The air conditioner is a first class electric appliance. It
must be properly grounded by a licensed professional.
Make sure the system is properly
grounded to avoid
electrical shock or fire.
The yellow-green wire in air conditioner is ground wire,
and 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 connection
terminals are accessible.
All wires of indoor unit and outdoor unit should be
connected by a licensed professional.
If the length of power connection wire not correct,
contact
your supplier for the correct wire length, do not splice.
4
Precautions
WARNING
All wiring terminal strips and connection boxes must be
easily accessible for installation and service.
For the air conditioner without plug, an circuit breaker
must be installed and easily accessible.
To avoid personal injury or damage, if you need to
relocate the air conditioner, only a qualified licensed
technician should perform the work.
Select a location out of reach for children and far away
from animals or plants. If it is unavoidable, please add
a fence for safety purposes.
The indoor unit should be installed close to the wall.
Instructions for installation and use of this product are
provided by the manufacturer.
If the unit is off for an extended period at -5°F or lower
outside ambient temperature, power-on the unit for 4
hours or more to preheat before starting.
Working temperature range
NOTICE:
Indoor side DB/WB(
℃/°F
) Outdoor side DB/WB(
℃/°F
)
Maximum cooling 27/19(81/66) 46/24(115/75)
Maximum heating 27/81) 24/18(75/64)
● The operating temperature range (outdoor temperature) for cooling only unit is
-18℃ ~ 46℃(0 ~ 115°F) ; for heat pump unit is -35℃ ~ 46℃(-31 ~ 115°F).
5
6
Parts name
Outdoor Unit
air inlet
Connection wire
air outlet
Indoor Unit
(Display content or position may be different from above
graphics, please refer to actual products)
air inlet
panel
aux.button
horizontal louver
air outlet
remote control
NOTICE:
Actual product may be different from above graphics, please refer to actual
products.
heating
indicator
temp.
indicator
cooling
indicator
power
indicator
receiver
window
drying
indicator
display
7
8
10
11
12
13
14
15
16
Emergency operation
If remote controller is lost or damaged, please use auxiliary button to turn
on or turn off the air conditioner. The operation in details are as below:
air conditioner. When the air conditioner is turned on, it will operate under
auto mode.
aux. button
panel
Clean and maintenance
■ Turn off the air conditioner and disconnect the power before cleaning the air
conditioner to avoid electric shock.
■ Do not wash the air conditioner with water to avoid electric shock.
■ Do not use volatile liquid to clean the air conditioner.
Clean surface of indoor unit
When the surface of indoor unit is dirty, it is recommended to use a soft dry cloth
or wet cloth to wipe it.
● Do not remove the panel when cleaning it.
WARNING
NOTICE:
WARNING:
Use insulated object to press the auto button
17
Clean and maintenance
1
2
3
4
Open panel
Pull out the panel to a certain ● Use dust catcher or water to
the water (below 45
℃
(113°F))
to clean it, and then put it in a
shady and cool place to dry.
panel cover tightly.
operation environment, clean frequency can be increased.
WARNING
18
Clean and maintenance
1. Check whether air inlets and air outlets are blocked.
2. Check whether circuit break, plug and socket are in good condition.
4. Check whether mounting bracket for outdoor unit is damaged or corroded.
If yes, please contact dealer.
5. Check whether drainage pipe is damaged.
1. Disconnect power supply.
3. Check whether mounting bracket for outdoor unit is damaged or corroded.
If yes, please contact dealer.
Notice for recovery
1. Many packing materials are recyclable materials.
Please dispose them in appropriate recycling unit.
2. If you want to dispose the air conditioner, please contact local dealer or
consultant service center for the correct disposal method.
NOTICE: Checking before use-season
NOTICE: Checking after use-season
19
Malfunction analysis
General phenomenon analysis
Please check below items before asking for maintenance. If the malfunction still
Phenomenon Check items Solution
Indoor unit
can’t receive
remote
controller’s
signal or
remote
controller
has no
action.
● Whether it's interfered severely
(such as static electricity, stable
voltage)?
● Whether remote controller is
within the signal receiving
range?
● Whether there are obstacles?
● Whether remote controller is
pointing at the receiving
window?
● Is sensitivity of remote contro-
ller low; fuzzy display and no
display?
● No display when operating
remote controller?
● Fluorescent lamp in room?
● Pull out the plug. Reinsert
the plug after about 3min, and
then turn on the unit again.
● Signal receiving range is 8m.
● Remove obstacles.
●
Select proper angle and point
the remote controller at the re-
ceiving window on indoor unit.
● Check the batteries. If the
power of batteries is too low,
please replace them.
● Take the remote controller
close to indoor unit.
and then try it again.
● Check whether remote cont-
roller appears to be damaged.
If yes, replace it.
No air
emitted
from
indoor
unit
● Air inlet or air outlet of indoor
unit is blocked?
● Eliminate obstacles.
● Under heating mode, indoor
temperature is reached to set
temperature?
● After reaching to set temper-
ature, indoor unit will stop bl-
owing out air.
● Heating mode is turned on just
now?
● In order to prevent blowing
out cold air, indoor unit will be
started after delaying for sev-
eral minutes, which is a nor-
mal phenomenon.
20
Malfunction analysis
● Power failure?
● Is plug loose?
● Circuit break trips off or
fuse is burnt out?
● Wiring has malfunction?
● Unit has restarted immediately
after stopping operation?
● Whether the function setting
for remote controller is
correct?
● Reset the function.
● Wait for 3min, and then turn
on the unit again.
● Ask professional to replace it.
● Ask professional to replace
circuit break or fuse.
● Reinsert the plug.
● Wait until power recovery.
Air condit-
ioner can’t
operate
Mist is em-
itted from
indoor unit’s
air outlet
● Indoor temperature and hum-
idity is high?
● Because indoor air is cooled
rapidly. After a while, indoor
temperature and humidity will
be decrease and mist will
disappear.
Phenomenon Check items Solution
Set temper-
ature can’t
be adjusted
● Unit is operating under auto
mode?
● Temperature can’t be adju-
sted under auto mode.
Please switch the operation
mode if you need to adjust
temperature.
● Your required temperature
exceeds the set temperature
range?
● Set temperature range:
16
℃
~30
℃
.
Cooling
(heating)
effect is
not good.
● Voltage is too low?
● Wait until the voltage
resumes normal.
● Filter is dirty?
● Set temperature is in proper
range?
● Adjust temperature to proper
range.
● Door and window are open? ● Close door and window.
21
Phenomenon Check items Solution
Odours are
emitted
● Whether there’s odour source,
such as furniture and cigarette,
etc.
● Eliminate the odour source.
Air conditio-
ner operates
abnormally
● Whether there’s interference,
such as thunder, wireless
devices, etc.
● Disconnect power, put back
power, and then turn on the
unit again.
Outdoor
unit has
vapor
● Heating mode is turned on?
● During defrosting under he-
ating mode, it may generate
vapor, which is a normal
phenomenon.
“Water
noise
● Air conditioner is turned on or
turned off just now?
● The noise is the sound of
the unit, which is a normal
phenomenon.
Cracking
noise
● Air conditioner is turned on or
turned off just now?
● This is the sound of friction
caused by expansion and/or
contraction of panel or other
parts due to the change of
temperature.
Malfunction analysis
22
Malfunction analysis
Error Code
● When air conditioner status is abnormal, temperature indicator on indoor unit will
ation of error code.
Above indicator diagram is only
for reference. Please refer to
actual product for the actual
indicator and position.
■ When below phenomenon occurs, please turn off air conditioner and discon-
for service.
● Power cord is overheating or damaged.
● There’s abnormal sound during operation.
● Circuit break trips off frequently.
● Air conditioner gives off burning smell.
● Indoor unit is leaking.
■ If the air conditioner operates under abnormal conditions, it may cause
service.
Error code
E5
H6
C5
F1
F2
E6
Troubleshooting
t
It can be eliminated af er restarting the unit. If not, please
It can be eliminated after restarting the unit. If not, please
F0
Means defrosting status. It’s the normal phenomenon.
H1( )
Heating indicator
ON 10s OFF 0.5s
It can be eliminated after restarting the unit. If not, please
contact qualified professionals for service.
WARNING
Indoor
display
Error code
23
Installation dimension diagram
At least 8 ft
At least 6 in
Space to the ceiling
At least 118 in
...............
Space to the obstruction
Space to the wall
At least 6 in
At least 6 in
Space to the wall
Space to the wall
≥ 20 in
Air inlet side
Space to the obstruction
Air outlet side
≥ 78 in
≥ 20 in
≥ 12 in
Space to the wall
Drainage pipe
≥ 20 in
24
To ensure safety, please be mindful of the following precautions.
Warning
When installing or relocating the unit, be sure to keep the refrigerant
circuit free from air or substances other than the specified refrigerant.
Any presence of air or other foreign substance in the refrigerant circuit will cause
system pressure rise or compressor rupture, resulting in injury.
When installing or moving this unit, do not charge the refrigerant which
is not comply with that on the nameplate or unqualified refrigerant.
Otherwise, it may cause abnormal operation, wrong action, mechanical
malfunction or even series safety accident.
When refrigerant needs to be recovered during relocating or repairing the
unit, be sure that the unit is running in cooling mode.Then, fully close the
valve at high pressure side (liquid valve).About 30-40 seconds later, fully
close the valve at low pressure side (gas valve), immediately stop the unit
and disconnect power. Please note that the time for refrigerant recovery
should not exceed 1 minute.
If refrigerant recovery takes too much time, air may be sucked in and cause
pressure rise or compressor rupture, resulting in injury.
During refrigerant recovery, make sure that liquid valve and gas valve are
fully closed and power is disconnected before detaching the connection pipe.
If compressor starts running when stop valve is open and connection pipe is not
yet connected, air will be sucked in and cause pressure rise or compressor
rupture, resulting in injury.
When installing the unit, make sure that connection pipe is securely
connected before the compressor starts running.
If compressor starts running when stop valve is open and connection pipe is not
yet connected, air will be sucked in and cause pressure rise or compressor
rupture, resulting in injury.
Prohibit installing the unit at the place where there may be leaked corrosive
gas or flammable gas.
If there leaked gas around the unit, it may cause explosion and other accidents.
Do not use extension cords for electrical connections. If the electric wire
is not long enough, please contact a local service center authorized
and ask for a proper electric wire.
Poor connections may lead to electric shock or fire.
Use the specified types of wires for electrical connections between the
indoor and outdoor units. Firmly clamp the wires so that their terminals
receive no external stresses.
Electric wires with insufficient capacity, wrong wire connections and insecure
wire terminals may cause electric shock or fire.
Safety precautions for installing and relocating the unit
● Please contact the local agent for installation.
Indoor unit
1. There should be no obstruction near air
inlet and air outlet.
2. Select a location where the condensat-
ion water can be dispersed easily and
won't affect other people.
Select a location which is convenient to
connect the outdoor unit and near the
power socket.
Select a location which is out of reach
for children.
The location should be able to withstand
the weight of indoor unit and won't incr-
ease noise and vibration.
1.The place with strong heat sources,
or volatile objects spread in the air.
,
The place with high-frequency
devices (such as welding machine,
medical equipment).
The place near coast area.
The place with oil or fumes in the air.
3.
2.
4.
5.
5.The place with sulfureted gas.
6.
7.
6.
The appliance must be installed 2.5m
8.
7. Don't install the indoor unit right above
the electric appliance.
8. Please try your best to keep way from
environment (such as chemical factory).
Outdoor unit
1.
2.
3.
4. Make sure that the installation follows the requirement of installation
dimension diagram.
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.
5.
25
Tools for installation
Note:
Selection of installation location
Basic requirement
Installing the unit in the following pla-
ces maycause malfunction. If it is un-
avoidable, please consult the local dealer:
3.
4.
Select a location where the noise and outflow air emitted by the outdoor unit
will not affect neighborhood.
The location should be well ventilated and dry, in which the outdoor unit
won't be exposed directly to sunlight or strong wind.
The location should be able to withstand the weight of outdoor unit.
1 Level meter
4 Drill head
7 Open-end wrench
10 Vacuum pump
13 Inner hexagon spanner
2 Screw driver
5 Pipe expander
8 Pipe cutter
11 Pressure meter
3 Impact drill
6 Torque wrench
9 Leakage detector
12 Universal meter
14 Measuring tape
Other places with special circumstances.
The appliance shall not be installed
in the laundry.
It’s not allowed to be installed on
the unstable or motive base structure
(such as truck) or in the corrosive
26
Requirements for electric connection
Safety precaution
Electrical connection requirement
1. Must follow the electric safety regulations when installing the unit.
circuit break.
3. Make sure the power supply matches with the requirement of air conditioner.
Unstable power supply or incorrect wiring or malfunction. Please install proper
power supply cables before using the air conditioner.
4. Properly connect the live wire, neutral wire and grounding wire of power socket.
5. Be sure to cut off the power supply before proceeding any work related to
electricity and safety.
7. If the supply cord is damaged, it must be replaced by the manufacturer, its
8. The temperature of refrigerant circuit will be high, please keep the interconnec-
tion cable away from the copper tube.
9. The appliance shall be installed in accordance with national wiring regulations.
10.Installation must be performed in accordance with the requirement of NEC
and CEC by authorized personnel only
grounding with specialized grounding device by a professional. Please make
sure it is always grounded effectively, otherwise it may cause electric shock.
2. The yellow-green wire in air conditioner is grounding wire, which can't be used
for other purposes.
the specialized power supply circuit and the air switch.
3. The grounding resistance should comply with national electric safety regulations.
4. The appliance must be positioned so that the plug is accessible.
5. An all-pole disconnection switch having a contact separation of at least 3mm in
6. Please do install the air switch. Otherwise, it may cause the malfunction.
7. According to local electric safety regulation, the product must be equipped with
for avoiding short-circuit or overload. Please install the air switch with proper capacity.
8. The air switch must be with the thermo magnetic disconnect protection function
supply circuit for air conditioner to make sure the pre-embedded cable complies
with the requirement in the following table.
9. Before installation, please check and confirm the special pre-embedded power
Model Power
Connection wire
of indoor unit
Power cord of
outdoor unit
Air switch
30K
single phase
208/230V 60HZ
single phase
208/230V 60HZ
50A
36K
AWG18
AWG18
AWG8
AWG8 50A
27
Installation of indoor unit
Step one: choosing installation location
Step two: install wall-mounting frame
rm it with the client.
1. Hang the wall-mounting frame on the wall; adjust it in horizontal position with the
plastic expansion particles in the holes.
3. Fix the wall-mounting frame on the wall with tapping screws (ST4.2X25TA) and
.
1. Choose the position of piping hole according to the direction of outlet pipe. The
position of piping hole should be a little lower than the wall-mounted frame,
shown as below.
Step three: open piping hole
2. Open a piping hole with the diameter of Φ70 on the selected outlet pipe position.
In order to drain smoothly, slant the piping hole on the wall slightly downward to
the outdoor side with the gradient of 5-10°.
Left
Wall
Φ70mm
Right
Mark in the middle of it
Level meter
Rear piping hole
Wall
Space
to the
wall
above
150mm
Space
to the
wall
above
150mm
Φ70mm
Rear piping hole
28
1. Aim the pipe joint at the corresponding
bellmouth.
2. Pretightening the union nut with hand.
3. Adjust the torque force by referring to the following sheet. Place the open-end
wrench on the pipe joint and place the torque wrench on the union nut. Tighten
the union nut with torque wrench.
2. When select leading out the pipe
from left or right, please cut off the
corresponding hole on the bottom
case.
cut off
the hole
left right
1. The pipe can be led out in the
direction of right, rear right, left or
rear left.
left
rear left
right
rear right
Step four: outlet pipe
Installation of indoor unit
Note:
● Pay attention to dust prevention and
take relevant safety measures when
opening the hole.
●
The plastic expansion particles are
not provided and should be bought
locally.
union nutpipe joint
pipe
Indoor
5-10
outdoor
Φ70
29
4. Wrap the indoor pipe and joint of con-
nection pipe with insulating pipe, and
then wrap it with tape.
Step six: install drain hose
Installation of indoor unit
torque wrench
open-end
wrench
indoor pipe
pipe
union nut
Hex nut diameter Tightening torque (N
.
m)
Φ 1/4 in
Φ 3/8 in
Φ 1/2 in
Φ 5/8 in
Φ 3/4 in
30~40
45~55
60~65
70~75
15~20
insulating pipe
1. Connect the drain hose to the outlet pipe of
indoor unit.
2. Bind the joint with tape.
outlet
pipe
drain hose
drain hose
tape
outlet pipe
drain hose
insulating pipe
Note:
● Add insulating pipe in the indoor
drain hose in order to prevent
condensation.
● The plastic expansion particles are
not provided.
1. Open the panel, remove the screw
on the wiring cover and then take
down the cover.
screw
pane
wiring cover
Step seven: connect wire of indoor unit
30
Installation of indoor unit
3. Remove the wire clip; connect the power connection wire to the wiring terminal
with wire clip.
power connection
wire
cable-cross
hole
2. Make the power connection wire go
through the cable-cross hole at the back
of indoor unit and then pull it out from
the front side.
3
2
N(1)
Outdoor unit connection
green
red
black
white
4. Put wiring cover back and then tighten the screw.
5. Close the panel.
6. Install the Conduit assy.
1) Fix the conduit assy on the conduit board and then let the connection wire
between indoor unit and outdoor unit go through the conduit.
2) Fix the conduit assy on the chassis with 3 screws.
● Conduit assy consists of conduit, conduit connector and lock nut.(Not the
standard part, which should be purchased by customer.)
● The length of conduit can be calculated according to the length of connection wire.
Note:
● All wires of indoor unit and outdoor unit should be connected by a professional.
for a new one. Avoid extending the wire by yourself.
installation.
● For the air conditioner without plug, an circuit break must be installed in the line.
The circuit break should be all-pole parting and the contact parting distance
should be more than 3mm.
Lock nut
Conduit connector
Cable Cross Plate
Conduit
connection wire
sleeve
31
Installation of indoor unit
Step eight: bind up pipe
1. Bind up the connection pipe, power
cord and drain hose with the band.
indoor unit
gas
pipe
indoor and
outdoor power cord
liquid pipe
drain hose
band
2. Reserve a certain length of drain
hose and power cord for installation
when binding them. When binding to
a certain degree, separate the indoor
power and then separate the drain
hose.
3. Bind them evenly.
4. The liquid pipe and gas pipe should
be bound separately at the end.
Note:
● The power cord and control wire
can't be crossed or winding.
● The drain hose should be bound
at the bottom.
drain hose
band
connection pipe
indoor power cord
Step nine: hang the indoor unit
1. Put the bound pipes in the wall pipe and then make them pass through the wall
hole.
2. Hang the indoor unit on the wall-mounting frame.
3. Stuff the gap between pipes and wall hole with sealing gum.
4. Fix the wall pipe.
Note:
● Do not bend the drain hose too excessively in order to prevent blocking.
indoor
outdoor
wall pipe
sealing gum
upper hook
lower hook of
wall-mounting frame
32
Installation 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.
at least 3cm above the floor
Note:
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
joint.
● 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.
Step two: install drain joint
(Only for cooling and heating
unit)
1. Connect the outdoor drain joint into
the hole on the chassis, as shown in
the picture below.
2. Connect the drain hose into the drain
vent.
chassis
outdoor drain joint
Drain hose
drain vent
1. Place the outdoor unit on the
support.
2. Fix the foot holes of outdoor unit
with bolts.
foot holes
foot holes
2. Fasten the power supply cord and the connection cord to the retaining plate using
3. Connect the power supply cord and the connection cord to terminal.
4.
5. Install the handle.
2 3
Indoor unit
2 3
lock nut
black
L1 L2
Indoor unit connection
POWER
Finish
conduit
33
Remove the handle from the outdoor unit.
the lock nut.(open the knock out holes if necessary)
Fasten the power supply cord and connection cord with cord clamp.
multi-core
cable
outdoor
unit
green
N(1)
white
L1
black
L2
white
green
red
Step five: connect outdoor electric wire
1.
The screws are packed with the terminal board.
Note:If the connection wire between indoor and outdoor is multi-core cable, the
installation distance between the indoor and outdoor units is more than 20 meters,
it’s required to connect the wiring
according to the following diagram,
N(1)
and ensure that the conductors
connected to the “2” and “3”position of
the wiring board are diagonally positioned
in the cable.Otherwise,the machine may
call communication error to lead the
machine can’t work.
1. Remove the screw cap of valve and
aim the pipe joint at the bellmouth of
pipe.
gas valve
2. Pretightening the union nut with
hand.
pipe joint
union nut
Tighten the union nut with torque
wrench by referring to the sheet
below.
Hex nut diameter
Tightening torque
liquid pipe
gas pipe
liquid
valve
(N
.
m)
15~20
30~40
45~55
60~65
70~75
Φ 1/4 in
Φ 3/8 in
Φ 1/2 in
Φ 5/8 in
Φ 3/4 in
Installation of outdoor unit
Step four: connect indoor and outdoor pipes
3.
34
Step six: neaten the pipes
1. The pipes should be placed along the wall,
bent reasonably and hidden possibly. Min.
semidiameter of bending the pipe is 10cm.
2. If the outdoor unit is higher than the wall
hole, you must set a U-shaped curve in the
pipe before pipe goes into the room, in
order to prevent rain from getting into the
room.
● The through-wall
height of drain hose
shouldn't be higher than the outlet
pipe hole of indoor unit.
● Slant the drain hose slightly dow-
nwards. The drain hose can't be
● The water outlet can't be placed
in water in order to drain smoothly.
Installation of outdoor unit
U-shaped curve
wall
drain hose
the drain hose
can't slope
upwards.
The drain hose can't be wavy
The drain hose
can't be wavy
The water
outlet can't be
wavy
The water outlet
can't be placed
in water
Note:
6. Fix the power connection wire and signal control wire with wire clip (only for
cooling and heating unit).
Note:
● Never cut the power connection wire to prolong or shorten the distance.
35
Vacuum pumping
Leakage detection
1. Remove the valve caps on
the liquid valve and gas
valve and the nut of refri-
gerant charging vent.
2. Connect the charging hose
of manifold to the refri-
gerant charging vent of gas
valve and then connect the
other charging hose to the
vacuum pump.
3. Open the manifold completely and operate
for 15min to check if the pressure of manifold
remains in -0.1MPa.
4. Close the vacuum pump and maintain this
status for 2min to check if the pressure of the
manifold remainsin -0.1MPa. If the pressure
decreases, there may be leakage.
5. Remove the manifold, open the valve core of liquid valve and gas valve
completely with inner hexagon spanner.
6. Tighten the screw caps of valves and refrigerant charging vent.
7. Reinstall the handle.
Use vacuum pump
liquid valve
gas valve
refrigerant
charging vent
nut of refrigerant
charging vent
vacuum pump
manifold gauges
valve cap
Lo Hi
inner hexagon
spanner
open
close
1. With leakage detector:
Check if there is leakage with leakage detector.
2. With soap water:
If leakage detector is not available, please use soap water for leakage detection.
Apply soap water at the suspected position and keep the soap water for more
than 3min. If there are air bubbles coming out of this position, there's a leakage.
36
Check after installation
Test operation
Items to be checked Possible malfunction
The unit may drop, shake or emit noise.
Have you done the refrigerant leakage
test? (heating) capacity.
It may cause condensation and water
dripping.
Is water drained well?
It may cause condensation and water
dripping.
Is the voltage of power supply accord-
ing to the voltage marked on the
nameplate?
It may cause malfunction or damaging
the parts.
Is electric wiring and pipeline installed
correctly?
It may cause malfunction or damaging
the parts.
Is the unit grounded securely? It may cause electric leakage.
Does the power cord follow the speci-
It may cause malfunction or damaging
the parts.
Is there any obstruction in the air inlet
Is the inlet and outlet of piping hole
been covered?
and outlet?
(heating) capacity.
The dust and sundries caused during
installation are removed?
It may cause malfunction or damaging
the parts.
The gas valve and liquid valve of
connection pipe are open completely?
(heating) capacit
It may cause insufficient cooling
(heating) capacity or waster eletricity.
y.
1. Preparation of test operation
● The client approves the air conditioner.
● Specify the important notes for air conditioner to the client.
2. Method of test operation
● Put through the power, press ON/OFF button on the remote controller to start
operation.
● Press MODE button to select AUTO, COOL, DRY, FAN and HEAT to check
whether the operation is normal or not.
● If the ambient temperature is lower than 16
℃(61°F)
, the air conditioner can’t
start cooling.
37
4. The additional refrigerant oil and refrigerant charging required after prolonging
connection pipe
● After the length of connection pipe is prolonged for 10m at the basis of
standard length, you should add 5ml of refrigerant oil for each additional 5m
of connection pipe.
● The calculation method of additional refrigerant charging amount (on the basis
of liquid pipe):
● Basing on the length of standard pipe, add refrigerant according to the
requirement as shown in the table. The additional refrigerant charging amount
per meter is different according to the diameter of liquid pipe. See the
following sheet.
Additional refrigerant charging amount = prolonged length of liquid pipe ×
additional refrigerant charging amount per meter
50 80
50 164
50 164
65 164
80 164
Cooling
capacity
Max length
of connec-
tion pipe
Cooling
capacity
Max length
of connec-
tion pipe
5000Btu/h
(1465W)
7000Btu/h
(2051W)
9000Btu/h
(2637W)
12000Btu/h
(3516W)
18000Btu/h
(5274W)
24000Btu/h
(7032W)
28000Btu/h
(8204W)
36000Btu/h
(10548W)
42000Btu/h
(12306W)
48000Btu/h
(14064W)
1. Standard length of connection pipe
● 15 ft, 25 ft, 35 ft, 50 ft.
● Min. length of connection pipe is
10 ft.
2. Max. length of connection pipe.
Configuration of connection pipe
38
Additional refrigerant charging amount for R22, R407C, R410A and R134a
Diameter of connection pipe
Liquid pipe(in) Gas pipe(in)
Φ1/4
Φ1/4 or Φ3/8
Φ1/2
Φ5/8
Φ3/4
Φ7/8
Φ3/8 or Φ1/2
Φ5/8 or Φ3/4
Φ3/4 or Φ7/8
Φ1 or Φ1-1/4
_
_
Cooling only(oz ) Cooling and heating(0z)
.53
.53
1.1
2.12
8.8 8.8
12.35
12.35
4.23
4.23
1.1
.71
Outdoor unit throttle
Configuration of connection pipe
39
Pipe expanding method
Note:
Improper pipe expanding is the main cause of refrigerant leakage. Please expand
the pipe according to the following steps:
A: Cut the pipe
the distance of indoor unit and
outdoor unit.
● Cut the required pipe with pipe cutter.
pipe
pipe cutter
leaning uneven burr
B: Remove the burrs
● Remove the burrs with shaper and
prevent the burrs from getting into
the pipe.
downwards
pipe
shaper
C: Put on suitable insulating pipe
D: Put on the union nut
● Remove the union nut on the indoor
connection pipe and outdoor valve;
install the union nut on the pipe.
union pipe
pipe
E: Expand the port
● Expand the port with expander.
Note:
● "A" is different according to the
diameter, please refer to the sheet
below:
expander
hard
mold
pipe
F: Inspection
● Check the quality of expanding port.
If there is any blemish, expand the
port again according to the steps
above.
the length is equal
improper expanding
leaning
damaged
surface
crack uneven
thickness
smooth surface
Outer diameter
(mm)
A(mm)
Max Min
Φ6-6.35(1/4")
Φ9.52(3/8")
Φ12-12.7(1/2")
Φ15.8-16(5/8")
1.3 0.7
1.6 1.0
1.8 1.0
2.4 2.2
66129930401
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Add: West Jinji Rd, Qianshan, Zhuhai,Guangdong, China, 519070
Tel: (+86-756) 8522218
Fax: (+86-756) 8669426
E-mail: info@twclimate.com
www.greecomfort..com
Cat No: GREE_VIRU_A_INSTALL & OWNERS_031519
