CT MORLEY One Way Cassette Mini Splits AC and Heat Units User Manual

: September 14, 2024
: CT MORLEY

One Way Cassette Mini Splits AC and Heat Units

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Specifications:

Product Model: xxxxxxxxx
Power source: xxxxxx
Cooling capacity: xxxx
Heating capacity: xxxx
Rated current: xxxx
Rated power input: xxxxxxxx
Outdoor unit resistance class: IPX4

Product Overview:

NOTE ON ILLUSTRATIONS: Illustrations in this
manual are for explanatory purposes. The actual shape of your
indoor unit may be slightly different. The actual shape shall
prevail.

Product Installation:

Install Your Indoor Unit:

Follow the steps outlined in the manual to correctly install
your indoor unit. Ensure proper positioning and secure mounting to
avoid any instability or damage.

Install Your Outdoor Unit:

Properly place and secure the outdoor unit following the
provided guidelines. Make sure it is placed in a well-ventilated
area with sufficient clearance for optimal performance.

Refrigerant Piping Connection:

Connect the refrigerant piping according to the instructions
provided. Take care to seal all connections properly to prevent
leaks and ensure efficient cooling.

Wiring Precautions:

When handling wiring, follow safety precautions to avoid
electrical hazards. Ensure proper insulation and connection of all
wires as per the wiring diagram provided.

Air Evacuation:

Prior to operation, perform air evacuation as instructed to
remove any air from the system. Proper air evacuation is essential
for optimal cooling performance.

Panel Installation:

Install the panels securely on both the indoor and outdoor units
to protect components from dust and debris. Follow the manual for
correct panel installation steps.

Test Run:

After installation, conduct a test run of the air conditioner to
ensure all functions are working correctly. Monitor for any unusual
noises or malfunctions during the test run.

Operation Instructions:

Indoor Unit Display:

Familiarize yourself with the indoor unit display indicators to
understand the status of the air conditioner. Refer to the manual
for details on each display symbol.

Remote Control Operations:

Use the remote control to adjust settings such as temperature,
fan speed, and mode. Follow the instructions in the manual to
operate the air conditioner effectively using the remote
control.

Cleaning and Maintenance:

Regularly clean and maintain your air conditioner to ensure
efficient operation. Follow the cleaning instructions provided in
the manual to keep your unit in optimal condition.

Troubleshooting:

If you encounter any issues with your air conditioner, refer to
the troubleshooting section of the manual for guidance on
identifying and resolving common problems.

FAQ:

Q: How often should I clean the air filters?

A: It is recommended to clean the air filters every 2 weeks for
optimal performance and air quality.

Q: What should I do if the air conditioner stops cooling?

A: Check for any obstructions blocking the airflow and ensure
that the thermostat settings are correct. If the issue persists,
contact a qualified technician for assistance.

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One-way Cassette
USER MANUAL
IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference.

THANK YOU LETTER
Thank you for choosing Midea! Before using your new Midea product, please read this manual thoroughly to ensure that you know how to operate the features and functions that your new appliance offers in a safe way.

CONTENTS

THANK YOU LETTER

SAFETY PRECAUTIONS

SPECIFICATIONS

PRODUCT OVERVIEW

PRODUCT INSTALLATION

Install Your Indoor Unit

Install Your Outdoor Unit

Refrigent Piping Connection

Wiring Precautions

Air Evacuation

NOTE on adding refrigerant

Electrical And Gas Leak Checks

Panel Installation

Test Run

Unit Specifications and Features

OPERATION INSTRUCTIONS

Indoor Unit Display

Remote Control Operations

CLEANING AND MAINTENANCE

TROUBLESHOOTING

TRADEMARKS, COPYRIGHTS AND LEGAL STATEMENT 54

DISPOSAL AND RECYCLING

DATA PROTECTION NOTICE

SAFETY PRECAUTIONS
It’s really important you read Safety Precautions Before Operation and Installation Incorrect installation due to ignoring instructions can cause serious damage or injury. The seriousness of potential damage or injuries is classified as either a WARNING or CAUTION.
Explanation of Symbols
Warning of electrical voltage This symbol indicates that there is a danger to life and health of persons due to voltage. Warning The signal word indicates a hazard with a medium level of risk which, if not avoided, may result in death or serious injury. Caution The signal word indicates a hazard with a low degree of risk which, if not avoided, may result in minor or moderate injury. Attention The signal word indicates important information (e.g. damage to property), but not danger. Observe instructions This symbol indicates that a service technician should only operate and maintain this appliance in accordance with the operating instructions.
Read these operating instructions carefully and attentively before using/commissioning the unit and keep them in the immediate vicinity of the installation site or unit for later use!
WARNING
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(European Union countries).
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.
02

WARNING FOR PRODUCT USE
° If an abnormal situation arises (like a burning smell), immediately turn off the unit and disconnect the power. Call your dealer for instructions to avoid electric shock, fire or injury.
° Do not insert fingers, rods or other objects into the air inlet or outlet. This may cause injury, since the fan may be rotating at high speeds.
° Do not use flammable sprays such as hair spray, lacquer or paint near the unit. This may cause fire or combustion.
° Do not operate the air conditioner in places near or around combustible gases. Emitted gas may collect around the unit and cause explosion.
° Do not operate your air conditioner in a wet room such as a bathroom or laundry room. Too much exposure to water can cause electrical components to short circuit.
° Do not expose your body directly to cool air for a prolonged period of time. ° Do not allow children to play with the air conditioner. Children must be supervised
around the unit at all times. ° If the air conditioner is used together with burners or other heating devices,
thoroughly ventilate the room to avoid oxygen deficiency. ° In certain functional environments, such as kitchens, server rooms, etc., the use of
specially designed air-conditioning units is highly recommended. ° Toxic fumes may be produced if the refrigerant in this unit comes into contact with
naked flames (such as from a heater, gas stove/burners, or electric appliances). ° Dispose of this unit’s packaging carefully, so children cannot playwith it. Packaging,
especially plastic packaging, can be dangerous, can cause serious injury or death. Screws, staples and other metal packaging components can be sharp and should be disposed of carefully to avoid injury. ° Do not open or remove the unit’s panel when the unit is powered on. Touching the unit’s internal components while the unit is powered on can lead to electric shocks or injuries caused by moving parts such as the unit’s fan. ° Do not spray any liquids onto the unit or allow any liquids to drip onto the unit. ° The refrigerant in this unit is safe and should not leak if the system is designed and installed properly. However, if a large amount of refrigerant leaks into a room, the oxygen concentration will decrease rapidly, which can cause serious injury or death. The refrigerant used in this unit is heavier than air, so the danger is greater in basements or other underground spaces. In the event of a refrigerant leak, turn off any devices that produce a naked flame and any heating devices, ventilate the room, and contact your supplier or service engineer immediately.
CLEANING AND MAINTENANCE WARNINGS
° Turn off the device and disconnect the power before cleaning. Failure to do so can cause electrical shock.
° Do not clean the air conditioner with excessive amounts of water. ° Do not clean the air conditioner with combustible cleaning agents. Combustible
cleaning agents can cause fire or deformation.
03

ELECTRICAL WARNINGS
° Only use the specified power cord. If the power 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 modify the length of the power supply cord or use an extension cord to power the unit. The product must be properly grounded at the time of installation, or electrical shock may occur.
° For all electrical work, follow all local and national wiring standards, regulations, and the Installation Manual. Connect cables tightly, and clamp them securely to prevent external forces from damaging the terminal. Improper electrical connections can overheat and cause fire, and mayalso cause shock. All electrical connections must be made according to the Electrical Connection Diagram located on the panels of the indoor and outdoor units.
° All wiring must be properly arranged to ensure that the control board cover can close properly. If the control board cover is not closed properly, it can lead to corrosion and cause the connection points on the terminal to heat up, catch fire, or cause electrical shock.
° Disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.
CAUTION
° Turn off the air conditioner and disconnect the power if you are not going to use it for a long time.
° Turn off and unplug the unit during storms. ° Make sure that water condensation can drain unhindered from the unit. ° Do not operate the air conditioner with wet hands. This may cause electric shock. ° Do not use device for any other purpose than its intended use. ° Do not climb onto or place objects on top of the outdoor unit. ° Do not allow the air conditioner to operate for long periods of time with doors or
windows open,or if the humidity is very high. ° Some parts of the unit are sharp and can cause injury if touched. To prevent injury,
when the unit is being serviced, gloves should be worn.
TAKE NOTE OF FUSE SPECIFICATIONS
The air conditioner’s circuit board (PCB) is designed with a fuse to provide overcurrent protection. The specifications of the fuse are printed on the circuit board, examples of such are T5A/250VAC and T10A/250VAC.
WARNING FOR PRODUCT USE
° Installation must be performed by an authorized dealer or specialist. Defective installation can cause water leakage, electrical shock, or fire.
° Installation must be performed according to the installation instructions. Improper installation can cause water leakage, electrical shock, or fire.
° Contact an authorized service technician for repair or maintenance of this unit. This appliance shall be installed in accordance with national wiring regulations.
° Only use the included accessories, parts, and specified parts for installation. Using non-standard parts can cause water leakage, electrical shock, fire, and can cause the unit to fail.
° Install the unit in a firm location that can support the unit’s weight. If the chosen location can not support the unit’s weight, or the installation is not done properly, the unit may drop and cause serious injury and damage.
04

° Install drainage piping according to the instructions in this manual. Improper drainage may cause water damage to your home and property.
° For units that have an auxiliary electric heater, do not install the unit within 1 meter (3 feet) of any combustible materials
° Do not install the unit in a location that may be exposed to combustible gas leaks. If combustible gas accumulates around the unit, it may cause fire.
° Do not turn on the power until all work has been completed.
ELECTRICAL WARNINGS
° When moving or relocating the air conditioner, consult experienced service technicians for disconnection and reinstallation of the unit.
° How to install the appliance to its support, please read the information for details in “indoor unit installation” and “outdoor unit installation” sections.
05

SPECIFICATIONS

Product Model Power source Cooling capacity Heating capacity Rated current Rated power input Outdoor unit resistance class

xxxxxxxxx
xxxxxx xxxxx xxxx xxxx

xxxxxxxxx xxxxxxx
xxxxx xxxx xxxx xxxx
IPX4

xxxxxxxxx
xxxxxx xxxxxx xxxx xxxx

PRODUCT OVERVIEW
NOTE ON ILLUSTRATIONS:
Illustrations in this manual are for explanatory purposes. The actual shape of your indoor unit may be slightly different. The actual shape shall prevail.

8 10
6

1 Display panel

2 Air outlet(Air flow louver) 3 Air inlet(with air filter in it)

4 Installation part

5 Air-break switch

6 Outdoor Unit

7 Drain pipe

8 Refrigerant piping

9 Remote controller

10 Outdoor unit power cable

PRODUCTION INSTALLATION
ACCESSORIES
The air conditioning system comes with the following accessories. Use all of the installation parts and accessories to install the air conditioner. Improper installation may result in water leakage, electrical shock and fire, or cause the equipment to fail. The items are not included with the air conditioner must be purchased separately.

Manual

Installation cardboard template
Remote controller

AAA Battery

Cable tie

Water receiver
Seal Drain joint Wire controller (optional) Rubber ring

Drainpipe adaptor

Screw kits (ST850, M422, ST3.916, ST4.812, ST3.9*10)
Copper nut

1 (8,8,2,2,3)
2

Name

Shape

WiFi controller (optional) Panel
Q`ty(pc)

Connecting pipe assembly

Liquid side Gas side

6.35( 1/4 in)

9.52( 3/8in)

To purchase based on actual project requirements.

12.7( 1/2in)

1 1 1 1 1
1
1
Note
Parts you must purc hase separately. Consult the dealer about the proper pipe size of the unit you purchased.

NOTE
Panel installation should be performed after wiring and piping have been completed.

Install You Indoor Unit
1 Select installation location
NOTE
Before installing the indoor unit, you must choose an appropriate location. The following are standards that will help you choose an appropriate location for the unit.
Before Installation:
· Determine the route to move the unit to the installation site. · First unseal and unpack the unit. Then, hold the seats of the hanger (4 pcs) to move the unit. Refrain from
exerting force on other parts of the unit, especially the refrigerant piping, water discharge piping, and the plastic parts.
Proper installation locations meet the following standards:

Enough room exists for

Enough room exists for the

There is no direct radiation

installation and maintenance. connecting the pipe and drainpipe.

from heaters.

The air inlet and outlet The airflow can fill

are not blocked.

the entire room.

The ceiling is horizontal and its structure can
sustain the weight of the indoor unit.

DO NOT install unit in the following locations:

Areas with oil drilling or fracking
Coastal areas with high salt content in the air
Areas with caustic gases in the air, such as hot springs Areas that experience power fluctuations, such as factories

Enclosed spaces, such as cabinets Kitchens that use natural gas Areas with strong electromagnetic waves Areas that store flammable materials or gas Rooms with high humidity, such as bathrooms or laundry rooms

2 Confirm various sizes

Installation place
Type A Wall

500mm (19.69 in)

Ceiling

Roof Ceiling hole

(unit: mm/inch)
500mm (19.69 in)

225mm (8.86 in) 220mm (8.66 in) 16mm(5/8 in ) 2500mm(98.43 in)

Type B

Ceiling

GROUND Wall
200mm(7.87 in)

16mm(5/8 in )

air outlet Ceiling hole

air inlet

Indoor parts installation size
Type A 1105mm(43.5in)

GROUND Type B

(unit: mm/inch)
423mm (16.65in) 335mm(13.19in)

250mm(9.84in) 205mm(8.07in)

475mm(18.4in)

1360mm(53.54in)
10

3 Indoor Unit Installation

Make sure that only specified components are used for the installation works.

Model A: with circuit breaker
Remove the four screws to open the indoor control box and circuit breaker box.

Connect the wire to the air breaker according Four to the wire connecting diagram. screws

Remove the pre-cutting cover on the circuit breaker box.

TO INDOOR UNIT MAIN BOARD
Circuit Breaker
Y/G
32 1
TO OUTDOOR UNIT

32 1

WARNING
The ground wire should be tighten firmly without loosening.

Pre-cutting cover

Fasten and fix the wire body with a tie.

Model B: with terminal
Remove the four screws to open the indoor control box and terminal box.
Four screws

Fasten and fix the wire body with a tie

Install the circuit breaker cover by fixing the two screws.

Two screws

Remove the pre-cutting cover on the terminal box. Remove the two screws, then take out the clip.

Pre-cutting cover

Two screws

Connect the wire to the terminal according to the wire connecting diagram.

Install the terminal cover by fixing the two screws.

Select one to connect ground wire

Two screws 2. Install the indoor air handler

Fix the wire with the clip by using the two screws.

NOTE:
After you have finished installing the main body, when choosing where to start, determine the direction of the pipes to be drawn out. Especially in cases where there is a ceiling involved, align the refrigerant pipes, drain pipes, and indoor and outdoor lines with their connection points before mounting the unit.

After you selecting an installation location, drill a hole with the diameter of 6mm or less into the roof beam based on the layout of the installation board (accessory Installation cardboard template). After drilling the hole, remove the installation board.
1300mm(51.18”)
CUTTING LINE

430mm (16.93”)
TO INDOOR UNIT MAIN BOARD
1 23

Installation cardboard template

TO OUTDOOR UNIT

Connecting the wire from the control box.

To CCM Comm.Bus

TO 485 WIRE CONTROLLER
4

TO 2 WIRE Wire-controller
MAGNETIC RING

X Y E CN3

CN40

HB HA CN41

INDOOR UNIT MAIN BOARD

CN41 is a customised part.

Connecting the other side of the connecting cable to the wire controller.

WARNING
Please follow local regulations and take measures to isloate high voltage and low voltage.
NOTE:
Be sure to reserve a length of the connecting wire for periodic maintenance. If there is a connection lug at the end of shielded wire, the connection lug should be properly grounded.

Wire controller

The connective wires group

CN41 2-core wire (customer purchases wiring)

shielded wire (some units)
for ground wire
CN40 4-core wire

Pass a tie through the hole to fix wire .

Install Your Outdoor Unit

Select installation location

NOTE : PRIOR TO INSTALLATION
Before installing the outdoor unit, you must choose an appropriate location. The following are standards that will help you choose an appropriate location for the unit.
Proper installation locations meet the following standards:

60cmc24″ above
30cmc12″ on left

30cmc12″ from back wall

Good air circulation Firm and solid–the

Noise from the unit

and ventilation.

location can support the will not disturb other

unit and will not vibrate. people.

200cmc79″ in front

60cmc24″ on right

Long-term

Meets all spatial requirements shown in Installation Protected from prolonged periods Where snowfall is anticipated, take

Space Requirements above.

of direct sunlight or rain.

appropriate measures to prevent

ice buildup and coil damage.

NOTE

Install the unit by following local codes and regulations , there may be differ slightly between different regions.

CAUTION:

SPECIAL CONSIDERATIONS FOR EXTREME WEATHER

If the unit is exposed to heavy wind:

Install unit so that air outlet fan is at a 90° angle to the direction of the wind. If needed, build a barrier

in front of the unit to protect it from extremely heavy winds. See Figures below.

If the unit is frequently exposed to heavy rain or snow:

Build a shelter above the unit to protect it from the rain or snow. Be careful not to obstruct air flow

around the unit.

If the unit is frequently exposed to salty air(seaside):

Use outdoor unit that is specially designed to resist corrosion.

Strong wind

Wind Baffle

Shelter

Strong wind
90° angle to the direction of the wind

Strong wind
Build a wind Baffle to protect the unit

Build a shelter to protect the unit

DO NOT install unit in the following locations:

Near an obstacle that will block air inlets and outlets
Near a public street, crowded areas, or where noise from the unit will disturb others.

Near animals or plants that will be harmed by hot air discharge.
Near any source of combustible gas.

In a location that is exposed to large amounts of dust
In a location exposed to a excessive amounts of salty air.

2 Install drain joint(Heat pump unit only)

Step 1 Find out the base pan hole of outdoor unit.
Seal

Base pan hole of outdoor unit

Step 2 ° Fit the rubber seal on the end of the drain joint that will connect to the
outdoor unit. ° Insert the drain joint into the hole in the base pan of the unit. The drain joint
will click in place. ° Connect a drain hose extension (not included) to the drain joint to redirect
water from the unit during heating mode.
IN COLD CLIMATES
In cold climates, make sure that the drain hose is as vertical as possible to ensure swift water drainage. If water drains too slowly, it can freeze in the hose and flood the unit.
16

3 Anchor Outdoor Unit
WARNING
WHEN DRILLING INTO CONCRETE, EYE PROTECTION IS RECOMMENDED AT ALL TIME.
° The outdoor unit can be anchored to the ground or to a wall-mounted bracket with bolt(M10). Prepare the installation base of the unit according to the dimensions below.
° The following is a list of different outdoor unit sizes and the distance between their mounting feet. Prepare the installation base of the unit according to the dimensions below.
Outdoor Unit Types and Specifications (Split Type Outdoor Unit)

D B

H
A H

Front view

Top view

Outdoor Unit Dimensions W x H x D
760x590x285 (29.9×23.2×11.2) 810x558x310 (31.9x22x12.2) 845x700x320 (33.27×27.5×12.6) 900x860x315 (35.4×33.85×12.4) 945x810x395 (37.2×31.9×15.55) 990x965x345 (38.98x38x13.58) 938x1369x392 (36.93×53.9×15.43) 900x1170x350 (35.4x46x13.8) 800x554x333 (31.5×21.8×13.1) 845x702x363 (33.27×27.6×14.3) 946x810x420 (37.24×31.9×16.53) 946x810x410 (37.24×31.9×16.14) 952x1333x410 (37.5×52.5×16.14) 952x1333x415 (37.5×52.5×16.34) 890x673x342 (35×26.5×13.46) 765x555x303 (30.1×21.8×11.9) 805x554x330 (31.7×21.8×12.9) 770x555x300 (30.3×21.8×11.8)

(unit: mm/inch) Rows of series installation

Mounting Dimensions Distance A Distance B

The relations between H, A and L are as follows.

530 (20.85) 290 (11.4)

549 (21.6) 325 (12.8)

560 (22)

335 (13.2)

590 (23.2) 333 (13.1)

L
L 1/2H L H
1/2H < L H

A 25 cm / 9.8″ or more 30 cm / 11.8″ or more

640 (25.2) 405 (15.95) 624 (24.58) 366 (14.4)

L > H

Can not be installed

634 (24.96) 404 (15.9) 590 (23.2) 378 (14.88)

514 (20.24) 540 (21.26)

340 (13.39) 350 (13.8)

673 (26.5) 403 (15.87)

673 (26.5) 403 (15.87) 634 (24.96) 404 (15.9)

634 (24.96) 663 (26.1) 452 (17.8)

404 (15.9) 354 (13.94) 286(11.3)

o2r5mcomre/ 9.8″

o2r5mcmore/ 9.8″

511 (20.1)

317 (12.5)

487 (19.2) 298 (11.7)

L A

300 cm / 118″ or more

150 ocrmm/o5r9e”

cm or

m/ 2o3r.e6″

If you are installing the outdoor unit on the ground,or a concrete mounting platform,use the following steps: 1. Mark the positions for four expansion bolts based on dimensions in the Mounting Dimensions
chart and illustrations above. 2.Pre-drill holes for expansion bolts. 3.Clean concrete dust away from the holes. 4.Place a nut on the end of each expansion bolt. 5.Hammer expansion bolts into the pre-drilled holes. 6.Remove the nuts from the expansion bolts,and place outdoor unit on bolts. 7.Put a washer on each of the expansion bolts,then reinstall the nuts. 8.Using a wrench,tighten each nut until snug.
WARNING
WHEN DRILLING INTO CONCRETE,EYEPROTECTION IS RECOMMENDED AT ALL TIMES.
If you are installing the unit on a wall-mounted bracket, follow these steps:
CAUTION:
Before installing a wall-mounted unit,make sure that the wall is made of solid brick, concrete,or a similarly strong material. The wall must be able to support at least 4 times the weight of the unit.
1. Mark the position of the bracket holes based on the dimensions in the Mounting Dimensions chart on the previous page.
2.Pro-drill the holes for the expansion bolts. 3.Clean dust and debris away from the holes. 4.Place a washer and nut on the end of each expansion bolt. 5.Thread expansion bolts through the holes in the mounting brackets.Then,put the mounting brackets in
position and hammer the expansion bolts into the wall. 6.Check that the mounting brackets are level. 7.If the feet of the outdoor unit have rubber pads already installed , and you are using a local dealer’s
wall-mounting bracket,remove them before attempting to mount the condenser to the bracket.The mounting bracket has rubber isolating pads on it that will take the place of these. 8.Carefully lift the unit and place its mounting feet on the brackets. 9.Then,bolt the unit firmly to the brackets.
TO REDUCE VIBRATION OF WALL-MOUNTED UNIT
If allowed, you can install the wall-mounted unit with rubber gaskets to reduce vibration and noise.
18

Drainpipe Installation
The drainpipe is used to drain water away from the unit. Improper installation may cause unit and property damage.

CAUTION:
Before installing a wall-mounted unit,make sure that the wall is made of solid brick, concrete,or a similarly strong material. The wall must be able to support at least 4 times the weight of the unit.
· Insulate all piping to prevent condensation, which could lead to water damage. · If the drainpipe is bent or installed incorrectly, water may leak and cause a water-level switch
malfunction.
· In HEAT mode, the outdoor unit will discharge water. Ensure that the drain hose is placed in an
appropriate area to avoid water damage and slippage.
· DO NOT pull the drainpipe forcefully. This could disconnect it.

NOTE ON PURCHASING PIPES
Installation requires a PVC tube (exterior diameter = 1in(25mm) ) (depending on models ), which can be obtained at your localhardware store or dealer.

Indoor Drainpipe Installation
Install the drainpipe as illustrated in the following Figure. Connect drainpipe to the indoor unit via drain adaptor.
Drain adaptor

Drainpipe Metal clamp connecting port

Drainpipe

1-1.5m (39-59″)
Downward slope 1/100
NOTE ON DRAINPIPE INSTALLATION · When using an extended drainpipe, tighten
the indoor connection with an additional protection tube to prevent it from pulling loose.
· The drainpipe should slope downward at a
gradient of at least 1/100 to prevent water from flowing back into the air conditioner.

· To prevent the pipe from sagging, space
hanging wires every 1-1.5m (39-59″).
· If the outlet of the drainpipe is higher than
the body’s pump joint, provide a lift pipe for the exhaust outlet of the indoor unit. The lift pipe must be installed no higher than 75cm (29.5″) from the ceiling board and the distance between the unit and the lift pipe must be less than 30cm (11.8″) (depending on models ). Incorrect installation could cause water to flow back into the unit and flood.
· To prevent air bubbles, keep the drain hose
level or slightly tiled up (<75mm / 3″) (some models ).
1 – 1.5m (39-59″) 30cm (11.8″)
53cm(20.8″) 75cm (29.5″)
22cm (8.6″)
0 – 75mm (3″)

0-53cm (20.8″)
10cm (4″)
Pass the drain hose through the wall hole. Make sure the water drains to a safe location where it will not cause water damage or a slipping hazard.
NOTE
The drainpipe outlet should be at least 5cm (1.9″) above the ground. If it touches the ground, the unit may become blocked and malfunction. If you discharge the water directly into a sewer, make sure that the drain has a U or S pipe to catch odors that might otherwise come back into the house.

Drill wall hole
1. Using a 65mm (2.5in) or 90mm(3.54in) (depending on models )core drill, drill a hole in the wall. Make sure that the hole is drilled at a slight downward angle, so that the outdoor end of the hole is lower than the indoor end by about 5mm to 7mm (0.2-0.275in). This will ensure proper water drainage.
2. Place the protective wall cuff in the hole. This protects the edges of the hole and will help seal it when you finish the installation process.

CAUTION:
When drilling the wall hole, make sure to avoid wires, plumbing, and other sensitive components.

Wall

Indoor

Outdoor

5-7mm (0.2-0.275in)

NOTE: When the gas side connective pipe is
16mm(5/8in) or more, the wall hole should be
90mm(3.54in).

Refrigerant Piping Connection

When connecting refrigerant piping, DO NOT let substances or gases other than the specified refrigerant enter the unit. The presence of other gases or substances will lower the unit’s capacity, and can cause abnormally high pressure in the refrigeration cycle. This can cause explosion and injury.

Notes on pipe length and elevation

The maximum length and drop height based on models.(Unit:m/ft.)

Type of model
North America, Australia and The
EU frequency conversion split
type
Other Split Type

Capacity (Btu/h)
<15K 15K-<24K 24K-<36K 36K-<60K
12K 18K-24K 30K-36K 42K-60K

Length of piping
25/82 30/98.4 50/164 75/246
15/49 25/82 30/98.4 50/164

Maximum drop height
10/32.8 20/65.6 25/82 30/98.4
8/26 15/49 20/65.6 30/98.4

Ensure that the length of the refrigerant pipe, the number of bends, and the drop height between the indoor and outdoor units meets the requirements shown in the table next to it

CAUTION

Oil trap

Gas piping

Indoor unit/ Outdoor unit

Oil traps
If oil flows back into the outdoor unit’s compressor, this might cause liquid compression or deterioration of oil return. Oil traps in the rising gas piping can prevent this. An oil trap should be installed every 6m(20ft) of vertical suction line riser (36000Btu/h unit). An oil trap should be installed every 10m(32.8ft) of vertical suction line riser (36000Btu/h unit).

Indoor unit/ Outdoor unit

6m/20ft (<36000Btu/h unit) 10m/32.8ft Liquid piping(36000Btu/h unit)
6m/20ft (<36000Btu/h unit) 10m/32.8ft (36000Btu/h unit)

Connection Instructions–Refrigerant Piping
CAUTION
· The branching pipe must be installed horizontally. An angle of more than 10° may cause malfunction. · DO NOT install the connecting pipe until both indoor and outdoor units have been installed. · Insulate both the gas and liquid piping to prevent condensation.

Step 1: Cut pipes
When preparing refrigerant pipes, take extra care to cut and flare them properly. This will ensure efficient operation and minimize the need for future maintenance.
Measure the distance between the · indoor and outdoor units.
Using a pipe cutter, cut the pipe a · little longer than the measured
distance. Make sure that the pipe is cut at a · perfect 90° angle.

90°

Oblique Rough Warped

Point down

Pipe Reamer

Step 3: Flare pipe ends
Proper flaring is essential to achieve an airtight seal.
· After removing burrs from cut pipe, seal the ends with PVC tape to prevent foreign materials from entering the pipe.
· Sheath the pipe with insulating material. · Place flare nuts on both ends of pipe. Make sure
they are facing in the right direction, because you can’t put them on or change their direction after flaring.
Flare nut

DO NOT DEFORM PIPE WHILE CUTTING
Be extra careful not to damage, dent, or deform the pipe while cutting. This will drastically reduce the heating

Copper pipe
· Remove PVC tape from ends of pipe when ready to perform flaring work.
· Clamp flare from on the end of the pipe. The end of the pipe must extend beyond the flare form.
Flare form

Step 2: Remove burrs
Burrs can affect the air-tight seal of refrigerant piping connection. They must be completely removed. · Hold the pipe at a downward angle to
prevent burrs from falling into the pipe. · Using a reamer or deburring tool, remove
all burrs from the cut section of the pipe.

Pipe
· Place flaring tool onto the form. · Turn the handle of the flaring tool clockwise
until the pipe is fully flared.

PIPING EXTENSION BEYOND FLARE FORM

Pipe gauge

Tightening torque

Flare dimension(A) (Unit:mm/lnch)

Min.

Max.

Flare shape

(180-200kgf.cm)
32-39 N.m (320-390kgf.cm)
49-59 N.m (490-590kgf.cm)
57-71 N.m (570-710kgf.cm)
67-101 N.m (670-1010kgf.cm)
85-110 N.m (850-1100kgf.cm)
· Remove the flaring tool and flare form, then inspect the end of the pipe for cracks and even flaring.
Step 4: Connect pipes
Connect the copper pipes to the indoor unit first, then connect it to the outdoor unit. You should first connect the low-pressure pipe, then the highpressure pipe.

· When connecting the flare nuts, apply a thin coat of refrigeration oil to the flared ends of the pipes.
· Align the center of the two pipes that you will connect.

Indoor unit tubing

Flare nut Pipe

· Tighten the flare nut snugly by hand. · Using a wrench, grip the nut on the unit tubing. · While firmly gripping the nut, use a torque

wrench to tighten the flare nut according to

the torque values in above table.

NOTE
Use both a spanner and a torque wrench when connecting or disconnecting pipes to/from the unit. Outdoor unit
Liquid side piping (Smaller diameter)

(Bigger

Torque wrench

CAUTION
Ensure to wrap insulation around the piping. Direct contact with the bare piping may result in burns or frostbite. · Make sure the pipe is properly connected.
Over tightening may damage the bell mouth and under tightening may lead to leakage.
NOTE MINIMUM BEND RADIUS
Carefully bend the tubing in the middle according to the diagram below. DO NOT bend the tubing more than 90° or more than 3 times.
Use appropriate tool
min-radius 10cm(3.9 ) · After connecting the copper pipes to the
indoor unit, wrap the power cable, signal cable and the piping together with binding tape.
NOTE
DO NOT intertwine signal cable with other wires. While bundling these items together. DO NOT intertwine or cross the signal cable with any other wiring.
· Thread this pipeline through the wall and connect it to the outdoor unit.
· Insulate all the piping , including the valves of the outdoor unit.
· Fix the water receiver (supplied in Accessories box) to the indoor unit by a screw.
NOTE: Two ST4.812 screws are supplied, one of which is spare.
ST4.812 screw
· Open the stop valves of the outdoor unit to start the flow of the refrigerant between the indoor and outdoor unit.
CAUTION
Check to make sure there is no refrigerant leak after completing the installation work. If there is a refrigerant leak, ventilate the area immediately and evacuate the system. (refer to the Air Evacuation section of this manual)

Wiring precautions
WARNING
BEFORE PERFORMING ANY ELECTRICAL WORK, READ THESE WARNINGS.

° All wiring must comply with local and national electrical codes, regulations and must be installed by a licensed electrician.
° All electrical connections must be made according to the Electrical Connection Diagramlocated on the panels of the indoor and outdoor units.
° If there is a serious safety issue with the power supply, stop work immediately. Explain your reasoning to the client, and refuse to install the unit until the safety issue is properly resolved.
° Power voltage should be within 90-110% of rated voltage. Insufficient power supply can cause malfunction, electrical shock, or fire.
° Installation of an external surge suppressor at the outdoor disconnect is recommended.
° If connecting power to fixed wiring, a switch or circult breaker that disconnects all poles and has a contact separation of at least 1/8in (3mm) must be incorporated in the fixed wiring. The qualified technician must use an approved circuit breaker or switch.
° Only connect the unit to an individual branch circuit. Do not connect another appliance to that outlet.
° Make sure to properly ground the air conditioner. ° Every wire must be firmly connected. Loose
wiring can cause the terminal to overheat, resulting in product malfunction and possible fire.

° Do not let wires touch or rest against refrigerant tubing, the compressor, or any moving parts within the unit.
° If the unit has an auxiliary electric heater, it must be installed at least 1 meter (40in) away from any combustible materials.
° To avoid getting an electric shock, never touch the electrical components soon after the power supply has been turned off. After turning off the power, always wait 10 minutes or more before you touch the electrical components.
° Make sure that you do not cross your electrical wiring with your signal wiring. This may cause distortion, interference or
° possibly damage to circuit boards. ° No other equipment should be connected
to the same power circuit. ° Connect the outdoor wires before
connecting the indoor wires.
WARNING
BEFORE PERFORMING ANY ELECTRICAL OR WIRING WORK, TURN OFF THE MAIN POWER TO THE SYSTEM.

NOTE ON AIR SWITCH
When the maximum current of the air conditioner is more than 16A, an air switch or leakage protection switch with protective device shall be used(purchased seperately). When the maximum current of the air conditioner is less than 16A, the power cord of air conditioner shall be equipped with plug (purchased seperately). In North Americathe applicance should be wired according to NEC and CEC requirements.

(A)

Air switch (purchased seperately)

Outdoor unit power wires Indoor & Outdoor connective wires
(purchased seperately)

(B)

Indoor unit power wires

Air switch (purchased seperately)

Outdoor unit

Indoor unit

Outdoor unit

Indoor unit

Indoor & Outdoor connective wires (purchased seperately)

(C) Air switch
(purchased seperately) Indoor unit power wires
Outdoor unit power wires
Outdoor unit
Indoor & Outdoor connective wires (purchased seperately)

(D) Only for the North American

Air switch (purchased seperately)

Outdoor unit power wires

Indoor & Outdoor connective wires (purchased seperately)

Indoor unit

Outdoor unit
Air switch (purchased seperately)

Indoor unit

NOTE: The cographs are for explanation purpose only. Your machine may be slightly different. The actual shape shall prevail.

OUTDOOR UNIT WIRING
WARNING
Before performing any electrical or wiring work, turn off the main power to the system.

1. Prepare the cable for connection a. You must first choose the right cable
size. Be sure to use H07RN-F cables.

NOTE: In North America, choose the cable type according to the local electrical codes and regulations.

Minimum Cross-Sectional Area of Power and Signal Cables-For reference
(Not applicable for North America)

Rated Current of Appliance (A)

3 and 6 > 6 and 10 > 10 and 16 > 16 and 25 > 25 and 32 > 32 and 40

Nominal Cross-Sectional Area (mm )
0.75 1 1.5
2.5 4 6

CHOOSE THE RIGHT CABLE SIZE
The size of the power supply cable, signal cable, fuse, and switch needed is determined by the maximum current of the unit. The maximum current is indicated on the nameplate located on the side panel of the unit. Refer to this nameplate to choose the right cable, fuse, or switch. NOTE: In North America, please choose the right cable size according to the Minimum Circuit Ampacity indicated on the nameplate of the unit.

b. Using wire strippers, strip the rubber jacketfrom both ends of the signal cable to reveal approximately 15cm (5.9″) of wire.
c. Strip the insulation from the ends. d. Using a wire crimper, crimp u-lugs on the ends.

NOTE: When connecting the wires, strictly follow the wiring diagram found inside the electrical box cover.

2. Remove the 2 screws fixed on the front panel and side panel, then take it down to perform wire connection(see the figure of outdoor unit A). Unscrew the electrical wiring cover and remove it.(see the figure of outdoor unit B)

4. The wire groups shall be bound with cable ties and fixed on the right side plate after they are connected. The strong electric wire group and weak electric wire group shall be led out separately through the two knock down holes on the bottom of the right side plate and fastened with a locking connector as shown in the figure below.

Cover Screw

2 Screws
Outdoor Unit A

Outdoor Unit B

3. Connect the u-lugs to the terminals Match the wire colors/labels with the labels on the terminal block. Firmly screw the u-lug of each wire to its corresponding terminal.
4. Clamp down the cable with the cable clamp.
5. Insulate unused wires with electrical tape. Keep them away from any electrical or metal parts.
6. Reinstall the cover of the electric control box.
Australia models
Please prepare spanner and flat-blade screwdriver before your installation work . 1. Remove two fixing screws, then remove the
front panel.

2 Screws
2. Use spanner and flat-blade screwdriver to knock down two metal seals, then pick the metal flakes out.

3. Connect the power cable and indoor & outdoor connection cable. Clamp down the cable with the cable clamp.

OUTDOOR UNIT WIRING
1. Prepare the cable for connection
a. Using wire strippers, strip the rubber jacket from both ends of the signal cable to reveal about 15cm (5.9″) of the wire.
b. Strip the insulation from the ends of the wires.
c. Using a wire crimper, crimp the u-lugs to the ends of the wires.
2. Open the front panel of the indoor unit. Using a screwdriver,remove the cover of the electric control box on your indoor unit.
3. Thread the power cable and the signal cable through the wire outlet.
4. Connect the u-lugs to the terminals.
Match the wire colors/labels with the labels on the terminal block. Firmly screw the u-lug of each wire to its corresponding terminal. Refer to the Serial Number and Wiring Diagram located on the cover of the electric control box.
CAUTION
· While connecting the wires, please strictly follow the wiring diagram.
· The refrigerant circuit can become very hot. Keep the interconnection cable away from the copper tube.
5. Clamp down the cable with the cable clamp.The cable must not be loose or pull on the u-lugs.
6. Reattach the electric box cover.

AIR EVACUATION
NOTICE
When opening valve stems, turn the hexagonal wrench until it hits against the stopper. Do not try to force the valve to open further.

Preparations and precautions
Air and foreign matter in the refrigerant circuit can cause abnormal rises in pressure, which can damage the air conditioner, reduce its efficiency, and cause injury. Use a vacuum pump and manifold gauge to evacuate the refrigerant circuit, removing any non-condensable gas and moisture from the system. Evacuation should be performed upon initial installation and when unit is relocated.

6. Close the Low Pressure side of the manifold gauge, and turn off the vacuum pump.
7. Wait for 5 minutes, then check that there has been no change in system pressure.
8. If there is a change in system pressure, refer to Gas Leak Check section for information on how to check for leaks. If there is no change in system pressure, unscrew the cap from the packed valve (high pressure valve).
9. Insert hexagonal wrench into the packed valve (high pressure valve) and open the valve by turning the wrench in a 1/4 counterclockwise turn. Listen for gas to exit the system, then close the valve after 5 seconds.
10.Watch the Pressure Gauge for one minute to make sure that there is no change in pressure. The Pressure Gauge should read slightly higher than atmospheric pressure.
11. Remove the charge hose from the service port.

Evacuation Instructions

Flare nut

1. Connect the charge hose of the manifold gauge

to service port on the outdoor unit’s low

pressure valve.

2. Connect another charge hose from the manifold

gauge to the vacuum pump.

3. Open the Low Pressure side of the manifold

gauge. Keep the High Pressure side closed.

Cap

4. Turn on the vacuum pump to evacuate the system.

5. Run the vacuum for at least 15 minutes, or until the Compound Meter reads -76cmHG(-105Pa).

valve body

valve stem

Outdoor unit
Manifold Gauge
-76cmHg

12. Using hexagonal wrench, fully open both the high pressure and low pressure valves.
13. Tighten valve caps on all three valves (service port, high pressure, low pressure) by hand. You may tighten it further using a torque wrench if needed.

Compound gauge

Pressure gauge

Low pressure
valve Pressure hose
or Charge hose
Low pressure valve

High pressure valve

Charge hose

Vacuum pump

NOTE ON ADDING REFRIGERANT
CAUTION
DO NOT mix refrigerant types.
Some systems require additional charging depending on pipe lengths. The standard pipe length varies according to local regulations. For example, in North America, the standard pipe length is 7.5m (25′). In other areas, the standard pipe length is 5m (16`). The refrigerant should be charged from the service port on the outdoor unit’s low pressure valve. The additional refrigerant to be charged can be calculated using the following formula:

Refrigerant

6.35( 1/4in)

9.52( 3/8in)

12.7( 1/2in)

R410A: (orifice tube in the indoor unit):

(Total pipe lengthstandara pipe length) ×30g(0.32oz)/m(ft)

R410A: (orifice tube in the outdoor unit):

(Total pipe lengthstandara pipe length) ×15g(0.16oz)/m(ft)

(Total pipe lengthstandara pipe length) ×65g(0.69oz)/m(ft)
(Total pipe lengthstandara pipe length) ×30g(0.32oz)/m(ft)

(Total pipe lengthstandara pipe length) ×115g(1.23oz)/m(ft)
(Total pipe lengthstandara pipe length) ×65g(0.69oz)/m(ft)

CAUTION DO NOT mix refrigerant types.

ELECTRICAL AND GAS LEAK CHECKS
WARNING RISK OF ELECTRICAL SHOCK
ALL WIRING MUST BE INSTALLED BY A LICENSED ELECTRICIAN AND COMPLY WITH LOCAL, STATE, AND NATIONAL ELECTRICAL CODES.

Electrical Safety Checks
After installation is complete, confirm that all electrical wiring has been installed in accordance with local and national regulations, and according to the installation manual.
BEFORE TEST RUN
Check Grounding Work Measure grounding resistance by visual detection and with a grounding resistance tester. Grounding resistance must be less than 0.1 . NOTE: This may not be required for some locations in North America.
DURING TEST RUN
Check for Electrical Leakage During the Test Run, use an electroprobe and multimeter to perform a comprehensive electrical leakage test.
IF ELECTRICAL LEAKAGE IS DETECTED
If electrical leakage is detected, turn off the unit immediately and call a licensed electrician to find and resolve the cause of the leakage. NOTE: This may not be required for some locations in North America.

Gas Leak Checks
There are two different methods to check for gaseous leaks. Use Fig. 8.1 below as a guide for the critical points to check for leaks. Soap and Water Method Using a soft brush or spray bottle, apply a soapy water solution to all of the pipe connection points of the indoor and outdoor units, watching to see if any bubbles form. The presence of bubbles indicates there is a leak. Leak Detector Method If using a leak detector, refer to the device’s operation/instruction manual for proper usage instructions.
After performing GAS leak checks
After confirming that all of the refrigerant pipe connections points DO NOT leak, replace the valve cover on the outside unit and wrap and insulate the piping connections of the indoor unit.

Check-point of indoor unit

Check-point of outdoor unit D

A: Low pressure stop valve B: High pressure stop valve C & D: Indoor unit flare nuts
Fig. 8.1

PANEL INSTALLATION

Step1: Prepare and install ceiling
° Drill 430 mm x 1300 mm( 16.93”x51.18” ) hole into the ceiling based on the layout of the installation board. The centre of the ceiling opening should match the centre of the body of the indoor unit. NOTE: In order to keep the ceiling level and prevent vibrations, reinforce the strength of the ceiling when necessary.
° Once the ceiling is cut, remove the installation board. then install the ceiling.
Step2: Panel Installation
Model A
NOTE: The air grille received by the customer is not tightened by the wire rope,but is specially designed to be loose for easy installation.
° Grab air grille with your fingers and pull it out slowly in the direction of the arrow.

ST3.916 screw
M422 screw
NOTE:
Eight M422 screws are supplied, two of which are spare. Two ST3.916 screws are supplied, one of which is spare.
Before fixing this screw, you need to open the screw cover; and after fixing screw, please close the cover.
° Open the two covers on both sides of the panel, fix the panel to the cassette by using 3× M4*22 screws.

Grab at these locations
° Pull the panel grille out of the panel, fix the cassette panel to the one- way cassett by two plastic buckles.

M4*22 screw ° Connect the display board to the main control
board, up to four wires are required to connect. NOTE: The corresponding colors or corresponding pins are connected each other.
(white 5-core)

(white 10-core) (red 5-core)

( 4 core)

° Manually rotate the air deflector, fix the panel to the cassette by using 3×M422 screws and a ST3.916 screw.

when connection is completed, please clip the wires to the buckle.

° Install the control box cover and turn the circuit breaker to ON, then close the two plastic covers on both sides of the panel.

palstic buckle

° Manually rotate the air deflector, fix the panel to the cassette by using 3×M422 screws and a ST3.916 screw.
ST3.9*16 screw

° During the test-run process, the display wil be lighted and the air griller will rise automatically.
Model B ° Press the circular positon to open the two screw
covers, then remove the two screws.

M422 screw
NOTE:
Eight M422 screws are supplied, two of which are spare. Two ST3.916 screws are supplied, one of which is spare.
Before fixing this screw, you need to open the screw cover; and after fixing screw, please close the cover.
° Open the two covers on both sides of the panel, fix the panel to the cassette by using 3× M422 screws.

Screw Covers
° Hold and open the air grille, then push both of the latch to the middle to unlock the air grille.
Latch

M4*22 screw

° Connect the display board to the main control board, up to four wires are required to connect.
NOTE: The corresponding colors or corresponding pins are connected each other.

air deflector (white 5-core)

display panel (white 10-core)
hoisting grille (red 5-core)

Wifi (4 core)

° Pull the panel grille out of the panel, fix the cassette panel to the one- way cassett by two plastic buckles.

when connection is completed, please clip the wires to the buckle.

° Install the control box cover and turn the circuit breaker to ON, then close the two plastic covers on both sides of the panel. ° Open the cover with display panel, loosen the screw and remove the cover.

° Re-install the air grille by pushing the latchto lock it and fixing the two screws, then close the two screw covers.

Loosen the screw and remove the cover

Step3: Optinal parts installation
Wireless module Wireless module, or named smart kit, if you choose this configuration, please follow the steps below to install. NOTE: If you choose this configuration, it is recommended that installing this wireless module during the step of panel installation. ° Remove the protective cap of the wireless
module (smart kit).

TEST RUN
CAUTION
Failure to perform the test run may result in unit damage, property damage, or personal injury.

Before test run
A test run must be performed after the entire system has been completely installed. Confirm the following points before performing the test: a) Indoor and outdoor units are properly installed. b) Piping and wiring are properly connected. c) No obstacles near the inlet and outlet of the unit that might cause poor performance or product malfunction. d) Refrigeration system does not leak. e) Drainage system is unimpeded and draining to a safe location. f) Heating insulation is properly installed. g) Grounding wires are properly connected. h) Length of the piping and additional refrigerant capacity have been recorded. i) Power voltage is the correct voltage for the air conditioner
Test Run Instructions
1. Open both the liquid and gas stop valves.
2. Turn on the main power switch and allow the unit to warm up.
3. Set the air conditioner to COOL mode.
4. For the Indoor Unit
a. Double check to see if the room temperature is being registered correctly.
b. Ensure the manual buttons on the indoor unit works properly.
c. Check to see that the drainage system is unimpeded and draining smoothly.
d. Ensure there is no vibration or abnormal noise during operation.
5. For the Outdoor Unit
a. Check to see if the refrigeration system is leaking.
b. Make sure there is no vibration or abnormal noise during operation.
c. Ensure the wind, noise, and water generated by the unit do not disturb your neighbors or pose a safety hazard.

NOTE: If the unit malfunctions or does not operate according to your expectations, please refer to the Troubleshooting section of the Owner’s Manual before calling customer service.
Water Discharge Test
· Before the test, make sure that the water discharge pipeline is smooth, and check that each connection is sealed properly.
· Conduct the water discharge test in the new room before the ceiling is paved.
1. Connect the power supply, and set the air conditioner to operate in the cool mode. Check the running sound of the drainage pump.
2. keep cool mode running at least 10 min. 3. Stop the air conditioner. Wait for three minutes,
and then check if there is anything unusual. If the water discharge piping layout is not correct, the excessive water flow will cause the water level error and “EE” error code will be displayed on the display panel. There may even be water overflowing from the water pan. 4. Continue to add water until the alarm for excessive water levels is triggered. Check if the drainage pump drains water immediately. After three minutes, if the water level does not fall below the warning level, the unit will shut down. At this time, you need to turn off the power supply, and drain away the accumulated water before you can turn on the unit normally. 5. Turn off the power supply, remove the water manually using the drainage plug, and put the test cap back to the original place.
CAUTION
The drainage plug at the bottom of the unit body is used to discharge accumulated water from the drain pan when the air conditioner malfunctions. When the air conditioner is operating normally, make sure the drainage plug is properly plugged to prevent water from leaking.

UNIT SPECIFICATIONS AND FEATURES
NOTE
Illustrations in this manual are for explanatory purposes. The actual shape of your indoor unit may be slightly different. The actual shape shall prevail.
Unit Parts

Display Panel

Air Intake Grille
Air Filter Air Vane

Air Outlet Air Inlet

Operating temperature

Electronic Control Box

When your air conditioner is used outside of the following temperature ranges, certain safety protection features may activate and cause the unit to disable.

Inverter Split Type

Room Temperature

COOL mode
16°C – 32°C (61°F – 90°F)

Outdoor Temperature

-25°C – 50°C (-13°F – 122°F)

HEAT mode
0°C – 30°C (32°F – 86°F)

DRY mode
10°C – 32°C (50°F – 90°F)

-25°C – 24°C (-13°F – 75°F)

0°C – 50°C (32°F – 122°F)

FOR OUTDOOR UNITS WITH AUXILIARY ELECTRIC HEATER
When outside temperature is below 0°C(32°F ), we strongly recommend keeping the unit plugged in at all time to ensure smooth ongoing performance.

NOTE: Room relative humidity less than 80%. If the air conditioner operates in excess of this figure, the surface of the air conditioner may attract condensation. Please sets the vertical air flow louver to its maximum angle (vertically to the floor), and set HIGH fan mode.

OPERATION INSTRUCTIONS
NOTE
To further optimize the performance of your unit, do the following: · Keep doors and windows closed. · Limit energy usage by using TIMER ON and TIMER OFF functions. · Do not block air inlets or outlets. · Regularly inspect and clean air filters.

Indoor Unit Display
The display panel has one type and the appearance of the type is shown in below. ” ” when Electric heating feature is activated. (Not available for this unit) ” ” when TIMER is set. ” ” when the unit is on. ” ” Alarm indicator. ” ” when Wireless Control feature is activated. (some units) ” ” when pre- heating/defrost feature is activated. ” ” Displays temperature, operation feature and Error codes. ” ” when 8°C heating feature is turned on. ” ” when Active Clean feature is turned on. ” ” when WiFi module enters AP mode. (some units) ” ” when Forced cooling feature is turned on.

Features

Default Setting
When the air conditioner restarts after a power failure, it will default to the factory settings (AUTO mode, AUTO fan, 24°C (76°F)). This may cause inconsistencies on the remote control and unit panel. Use your remote control to update the status.
Auto-Restart
In case of power failure, the system will immediately stop. When power returns, the Operation light on the indoor unit will flash. To restart the unit, press the ON/OFF button on the remote control. If the system has an auto restart function, the unit will restart using the same settings.
Three-minute protection feature
A protection feature prevents the air conditioner from being activated for approximately 3 minutes when it restarts immediately after operation.

Louver Angle Memory Function
Some models are designed with a louver angle memory function. When the unit restarts after a power failure, the angle of the horizontal louvers will automatically return to the previous position. The angle of the horizontal louver should not be set too small as condensation may form and drip into the machine. To reset the louver, press the manual button, which will reset the horizontal louver settings.
Refrigerant Leak Detection System (Multi-Zone Systems models do not have this function)
In the event of a refrigerant leak, the LED DISPLAY will display refrigerant leak error code and the LED indicator light will flash.

Sleep Operation
The SLEEP function is used to decrease energy use while you sleep (and don’t need the same temperature settings to stay comfortable). This function can only be activated via remote control. And the Sleep function is not available in FAN or DRY mode.
Press the SLEEP button when you are ready to go to sleep. When in COOL mode, the unit will increase the temperature by 1°C (2°F) after 1 hour, and will increase an additional 1°C (2°F) after another hour. When in HEAT mode, the unit will decrease the temperature by 1°C (2°F) after 1 hour, and will decrease an additional 1°C (2°F)after another hour.
The sleep feature will stop after 8 hours and the system will keep running with final situation.

SLEEP Operation

Set temperature

Cool mode(+1 C/2 F) per hour for the first two hours

1hr

Heat mode( -1 C/2 F) per hour for the first two hours

Keep running

Lifting panel operation
In the stand-by mode, press the “Mode” and “Down” buttons for 3 seconds at the same time, the remote controller enters the setting panel state, and the remote controller displays “F2”. When setting the panel status, press the “Up” or “Down” buttons of the remote controller to control the rise or fall of the grille, and press any other button to exit the setting. The up and down height of the panel can reach a maximum of 1.5 meters. During the decline, if the grille is raised by the obstacles, it will stop. During the ascending process, if the grille is blocked and does not rise to the correct height or a finger is pinched, it will automatically descend after a period of time and then ascend. If the grille is bocked for the third times, then the display panel will report an error and prompt for manual processing.
Breeze Away
This feature avoids direct air flow blowing on the body and make you feel indulging in silky coolness.
Energy Saving Tips

Saving energy during sleep
Active Clean function (Multi-Zone Systems models do not have this function)
The Active Clean Technology washes away dust when it adheres to the heat exchanger by automatically freezing and then rapidly thawing the frost. A “pi- pi” sound will be heard. The Active clean operation is used to produce more condensed water to improve the cleaning effect, and the cold air will blow out. After cleaning, the internal wind wheel then keeps operating with hot air to blow-dry the evaporator, thus keeping the inside clean. – When this function is turned on, the indoor unit display window appears “CL ” , after 20 to 130 minutes, the unit will turn off automatically and cancel Active Clean function. – For some units, the system will start high temperature cleaning process, and the temperature of air outlet is very high. Please keep away from it. And this would lead to the rising of the room temperature .

· DO NOT set the unit to excessive temperature levels.
· While cooling, close the curtains to avoid direct sunlight.
· Doors and windows should be kept closed to keep cool or warm air in the room.
· DO NOT place objects near the air inlet and outlet of the unit.
· Clean the air filter every two weeks. · Adjust louvers properly and avoid direct airflow. · Closing curtains during heating also helps keep
the heat in. · Doors and windows should be kept closed.

Remote Control Operation

Model Rated Voltage Signal Receiving Range Environment
Quick Start Guide
1 FIT BATTERIES

RG10L3(2HS)/BGEFU1,RG10L3(2HS)/BGEF 3.0V( Dry batteries R03/LR032) maximun 8m (vertical distance ) -5°C~60°C(23°F~140°F)
2 SELECT MODE
AUTO COOL DRY HEAT FAN

3 SELECT TEMPERATURE

6 PRESS POWER BUTTON

5 POINT REMOTE TOWARD UNIT

4 SELECT FAN SPEED

AU-100%

Mode

HEDARCTYOAOULTO

SET TEMPERATURE LOMWEHDIGFAHN

On/Off Fan

Swing

NOT SURE WHAT A FUNCTION DOES? Refer to the How to Use Basic Functions and How to Use Advanced Functions sections of this manual for a detailed description of how to use your air conditioner.
SPECIAL NOTE
· Button designs on your unit may differ slightly from the example shown. · If the indoor unit does not have a particular function, pressing that function’s button on
the remote control will have no effect.

Handling the Remote Controller

Inserting and Replacing Batteries Your air conditioning unit may come with two batteries(some units). Put the batteries in the remote control before use. 1. Slide the back cover from the remote control
downward, exposing the battery compartment. 2.Insert the batteries, paying attention to match
up the (+) and (-) ends of the batteries with 3. the symbols inside the battery compartment.
Slide the battery cover back into place.
BATTERY NOTES For optimum product performance: · Do not mix old and new batteries, or
batteries of different types. · Do not leave batteries in the remote
control if you don’t plan on using the device for more than 2 months.
BATTERY DISPOSAL Do not dispose of batteries as unsorted municipal waste. Refer to local laws for proper disposal of batteries.

NOTES FOR USING REMOTE CONTROL
The device could comply with the local national regulations. · In Canada, it should comply with
CAN ICES-3(B)/NMB-3(B). · In USA, this device complies with part 15 of
the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception,which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · Reorient or relocate the receiving antenna. · Increase the separation between the equipment and receiver. · Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. · Consult the dealer or an experienced radio/TV technician for help. · Changes or modifications not approved by the party responsible for compliance could void user’s authority to operate the equipment.

TIPS FOR USING REMOTE CONTROL
· The remote control must be used within 8 meters of the unit.
· The unit will beep when remote signal is received.
· Curtains, other materials and direct sunlight can interfere with the infrared signal receiver.
· Remove batteries if the remote will not be used more than 2 months.

Buttons and Functions

1 4 5 8 9 12
Model:
RG10L3(2HS)/BGEFU1 RG10L3(2HS)/BGEF

Description

No.1
No.2
2 No.3 3
No.4 6 7

ON/OFF Turn the unit on or off.
MODE Scrolls through operation modes as follows: Auto > Cool > Dry > Heat > Fan
BREEZE AWAY This feature avoids direct air flow blowing on the body and makes you feel indulging in silky coolness.
TEMP. UP Increases temperature in 0.5°C (1°F) increments. Max. temperature is 30°C (86°F). (Press together & buttons at the same time for 3 seconds will alternate the temperature display between the °C & °F).

10 No.5 11
13 14

SET
Scrolls through operation functions as follows: Active Clean > Fresh > Sleep > Follow Me > AP Mode > Active Clean The selected symbol will flash on the display area, press the OK button to confirm.

No.6

OK Used to confirm the selected functions

No.7

TIMER Set timer to turn unit on or off

No.8 No.9
No.10 No.11 No.12 No.13 No.14

TEMP. DOWN Decreases temperature in 0.5°C (1°F) increments. Min. temperature is 16°C (60°F)
FAN SPEED AU > 20% > 60% > 80% > 100% Press the TEMP or button to increase/ decrease the fan speed in 1% increments.
SWING Starts and stops the horizontal louver movement. Hold down for 2 seconds to initiate vertical louver auto swing feature(some units).
ECO/GEAR ECO > GEAR(75%) > GEAR(50%) > Previous setting mode > ECO
BOOST Enables unit to reach preset temperature in shortest possible time.
LED LED Turns LED display & air conditioner buzzer on and off
HUMIDITY Adjust the room humidity during Dry operation in a range of 35%~85%. Press this button to increase the humidity in 5% increments. NOTE: After setting, the humidity settings will display on the screen.

Remote Screen Indicators Information are displayed when the remote controller is power up.

Not available

Breeze Away

Not

available available

Not Low battery available (If flashes)

Active clean

Fresh mode

Sleep mode

Follow me

MODE display Displays the current mode

Wireless control

AUTO COOL DRY

HEAT

FAN

Transmission ECO GEAR Timer Indicator Feature Feature ON

Timer Lock OFF Feature

Slience Feature

Temperature/Timer/Fan speed display

Displays the set temperature by default, or fan speed or

timer setting when using TIMER ON/OFF functions.

Temperature range: Fan speed setting range:

16-30°C/60-86°F

AU -100%

(20-28°C/68-82°F) Humidity setting range:

(Model dependent) 35% -85%

Timer setting range: This display is blank when

0-24 hours

operating in FAN mode.

FAN SPEED AUTO

SLIENCE

LOW

MED

HIGH

1% 2-20% 21-40% 41-60% 61-80% 81-100% *This fan speed can not be adjusted in AUTO or DRY mode.

Horizontal louver swing JJ J JJ

Vertical louver auto swing

Not available for this unit

CoolFlash mode display

NOTE
1. All indicators shown in the figure are for the purpose of clear presentation. But during the actual operation, only the relative function signs are shown on the display window.

How to Use Basic Functions
NOTE
ATTENTION! Before operation, please ensure the unit is plugged in and power is available.

SETTING TEMPERATURE
The operating temperature range for units is 16-30°C (60-86°F)/20-28 C(68-82 F)(Model dependent). You can increase or decrease the set temperature in 0.5°C (1°F) increments.

AUTO Mode

In AUTO mode, the unit will automatically select the COOL, FAN, or HEAT operation

based on the set temperature. (The AUTO Mode of heating operation is only applicable

to heating and cooling model)

1. Press the MODE button to select AUTO.

2. Set your desired temperature using the TEMP or TEMP button.

3. Press the ON/OFF button to start the unit. NOTE: FAN SPEED can’t be set in AUTO mode.
2

COOL Mode

1. Press the MODE button to select COOL

mode.

2. Set your desired temperature using the

TEMP or TEMP button.

3. Press FAN button to select the fan speed

in a range of AU-100%.

4. Press the ON/OFF button to start the unit.

DRY Mode (dehumidifying)

1. Press the MODE button to select DRY.

2. Set your desired temperature using the TEMP

or TEMP button.

3. Press the ON/OFF button to start the unit.

3 NOTE: FAN SPEED cannot be changed in DRY

mode.

FAN Mode

1. Press the MODE button to select FAN mode.

2. Press FAN button to select the fan speed

in a range of AU-100%.

3. Press the ON/OFF button to start the unit.

NOTE: You can’t set temperature in FAN mode.

As a result, your remote control’s LCD screen

will not display temperature.

HEAT Mode

1. Press the MODE button to select HEAT mode.

2. Set your desired temperature using the TEMP or TEMP button.

3. Press FAN button to select the fan speed

in a range of AU-100%.

4. Press the ON/OFF button to start the unit.

NOTE: As outdoor temperature drops, the performance of your unit’s HEAT function may

be affected. In such instances, we recommend

using this air conditioner in conjunction with

other heating appliances.

Setting the TIMER
TIMER ON/OFF – Set the amount of time after which the unit will automatically turn on/off.

TIMER ON setting
Press TIMER button to initiate the ON time sequence.

Press Temp. up or down button for for multiple times to set the desired time to turn on the unit.
x5

Point remote to unit and wait 1sec, the TIMER ON will be activated.
1 sec

O N /OFF

M OD E

FA N

TEM P

LEEP

SCHUOTR T TIMER ON

TIMER OFF setting
Press TIMER button to initiate the OFF time sequence.

Press Temp. up or down button for for multiple times to set the desired time to turn off the unit.
x5

Point remote to unit and wait 1sec, the TIMER OFF will be activated.
1 sec

O N /OFF

M OD E

FA N

TEM P

LEEP

SCHUOTR T TIMER ON

NOTE: 1. When setting the TIMER ON or TIMER OFF, the time will increase by 30 minutes increments with each
press, up to 10 hours. After 10 hours and up to 24, it will increase in 1 hour increments. (For example, press 5 times to get 2.5h, and press 10 times to get 5h,) The timer will revert to 0.0 after 24. 2. Cancel either function by setting its timer to 0.0h.

TIMER ON & OFF setting(example) Keep in mind that the time periods you set for both functions refer to hours after the current time.

1 sec

Timer starts

O N /OFF

M OD E

FA N

TEM P

LEEP

SCHUOTR T TIMER ON

Unit turns
ON

Unit turns
OFF

Current time 1PM

2:00PM 3:00PM 3:30PM
2.5 hours later 5 hours later

4PM

5PM

6PM

O N /OFF

M OD E

FA N

TEM P

LEEP

SCHUOTR T TIMER ON

Example: If current timer is 1:00PM, to set the timer as above steps, the unit will turn on 2.5h later (3:30PM) and turn off at 6:00PM.

How to Use Advanced Functions
Swing function Press Swing button
Swing

2s Swing

The horizontal louver will swing up and down automatically when pressing Swing button. Press again to make it stop.
Airflow direction

Keep pressing this button more than 2 seconds, the vertical louver swing function is activated. (Model dependent)

Swing

If continue to press the SWING button, five different airflow directions can be set. The louver can be move at a certain range each time you press the button. Press the button until the direction you prefer is reached.

NOTE: When the unit is off, press and hold MODE and SWING buttons together for one second, the louver will open for a certain angle, which makes it very convenient for cleaning. Press and hold MODE and SWING buttons together for one second to reset the louver(some units only).

LED DISPLAY

LED

Press this button more

than 5 seconds(some units)

Press this button to turn on and turn off the display on the indoor unit.

Keep pressing this button more than 5 seconds, the indoor unit will display the actual room temperature. Press more than 5 seconds again will revert back to display the setting temperature.

Lifting panel function

Press together Mode button and ” ” button at the same time more than 3 seconds to activate this function, and the remote controller displays “F2″.When setting the panel status, press the ” ” or ” ” buttons of the remote controller to control the rise or fall of the grille, and press any other button to exit the setting.

ECO/GEAR function
Press X-ECO button to enter the energy efficient mode in a sequence of following: ECO GEAR(75%) GEAR(50%) Previous setting mode ECO…… Note: This function is only available under COOL mode.
ECO operation: Under cooling mode, press this button, the remote controller will adjust the temperature automatically to 24OC/75OF, fan speed of Auto to save energy (only when the set temperature is less than 24 OC/75OF). If the set temperature is above 24OC/75OF, press the ECO button, the fan speed will change to Auto, the set temperature will remain unchanged. NOTE: Pressing the ECO button, or modifying the mode or adjusting the set temperature to less than 24O C/75O F will stop ECO operation. Under ECO operation, the set tmeperature should be 24OC/75OF or above, it may result in insufficient cooling. If you feel uncomfortable, just press the ECO button again to stop it. GEAR operation: Press the ECO/GEAR button to enter the GEAR operation as following: 75%(up to 75% electrial energy consumption)
50%(up to 50% electrial energy consumption)
Previous setting mode. Under GEAR operation, the display on the remote controller will alternage between electical energy consumption and set temperature.
BREEZE AWAY
This feature avoids direct air flow blowing on the body and makes you feel indulging in silky coolness. NTOE: This feature is available under cool,Fan and Dry mode only.
Silence function
2s Keep pressing Fan button for more than 2 seconds to activate/disable Silence function(some units). Due to low frequency operation of compressor, it may result in insufficient cooling and heating capacity. Press ON/OFF, Mode, Sleep, JETCOOL or Clean button while operating will cancel silence function.
45

FP function
Press this button 2 times during one second under HEAT Mode and setting temperature of 16 OC/60OF or 20 OC/68O F(for model RG10L10(2HS)/BGEF only).
2
The unit will operate at high fan speed (while compressor on) with temperature automatically set to 8 C/46 F.

Note: This function is for heat pump air conditioner only. Press this button 2 times during one second under HEAT Mode and setting temperature of 16 C/60 F or 20 C/68 F(for model RG10L10(2HS)/BGEF) to activate FP function.Press On/Off, Sleep, Mode, Fan and Temp. button while operating will cancel this function.
LOCK function

5s
+ Boost

5s
Humidity

Press together Boost button and Humidity button at the same time more than 5 seconds to activate Lock function. All buttons will not response except pressing these two buttons for two seconds again to disable locking.

BOOST Function

Boost

When you select Boost feature in COOL mode, the unit will blow cool air with strongest wind setting to jump-start the cooling process. When you select Boost feature in HEAT mode, for units with Electric heat elements, the Electric HEATER will activate and jump-start the heating process.

SET function

SET

Press the SET button to enter the function setting, then press SET button or TEMP or TEMP button to select the desired function. The selected symbol will flash on the display area, press the OK button to confirm.
To cancel the selected function, just perform the same procedures as above.

Press the SET button to scroll through operation functions as follows:
Active clean ( )J Fresh( ) J Sleep( )J Follow Me( ) J AP mode( )J
Active clean ( )….
[]: Model dependent

Active clean function( ) (some units) : The Active Clean Technology washes away dust, mold, and grease that may cause odors when it adheres to the heat exchanger by automatically freezing and then rapidly thawing the frost. When this function is turned on, the indoor unit display window appears “CL”, after 20 to 45 minutes, the unit will turn off automatically and cancel CLEAN function.
FRESH function( ) (some units) : WIonhieznert/hPelaFsRmEaSDHusfut nCcotilolenctisori(nditeiapteendd, itnhge. on models) is energized and will help to remove pollen and impurities from the air
Sleep function( ) :
eTnheergSyLEusEePwfuhnilcetiyoonuisslueseepd(atonddedcorne,atsneeed the same temperature settings to stay comfortable). This function can only be
aFcUotriSvtEahteRe,ddSevMtiaaAilr,NesmUeeoAtLe,.,scleoenptroolp. eration,, in

Follow me function( ) :
The FOLLOW ME function enables the remote control to measure the temperature at its current location and send this signal to the air conditioner every 3 minutes interval. When using AUTO, COOL or HEAT modes, measuring ambient temperature from the remote control(instead of from the indoor unit itself) will enable the air conditioner to optimize the temperature around you and ensure maximum comfort.
NOTE: Press and hold Boost button for seven seconds to start/stop memory feature of Follow Me function.
If the memory feature is activated, On ,,
displays for 3 seconds on the screen.
If the memory feature is stopped, Of ,,
displays for 3 seconds on the screen. While the memory feature is activated, press the ON/OFF button, shift the mode or power failure will not cancel the Follow me function.
AP function( )(some units) :

, ,,
,, ,,

Note: The SLEEP function is not available in FAN or DRY mode.

Choose AP mode to do wireless network configuration. For some units, it doesn’t work by pressing the SET button. To enter the AP mode, continuously press the LED button seven times in 10 seconds.

CARE AND MAINTENANCE
BEFORE CLEANING OR MAINTENANCE
REMEMBER TO DISCONNECT THE POWER BEFORE CLEANING OR MAINTENANCE, EXCEPT FOR CLEANING AIR FILTER. TURN THE CURCUIT BREAKER OF THE INDOOR UNIT TO OFF IS NOT A KIND OF POWER DISCONNECTION. · Contact an authorized service technician for repair or maintenance. Improper repair and
maintenance may cause water leakage, electrical shock, or fire, and may void your warranty. · DO NOT substitute a blown fuse with a higher or lower amperage rating fuse, as this may cause
circuit damage or an electrical fire. · Make sure the drain hose is set up according to the instructions. Failure to do so could cause
leakage and result in personal property damage, fire and electric shock. · Make sure that all wires are connected properly. Failure to connect wires according to
instructions can result in electrical shock or fire.

CAUTION
· Only use a soft, dry cloth to wipe the unit clean. If the unit is especially dirty, you can use a clothsoaked in warm water to wipe it clean.
· Do not use chemicals or chemically treated cloths to clean the unit. · Do not use benzene, paint thinner,polishing powder or other solvents to clean the unit. They can
cause the plastic surface to crack or deform. · Do not use water hotter than 40°C (104°F) to clean the front panel. This can cause the panel
to deform or become discolored. · DO NOT wash the unit under running water. Doing so creates an electrical hazard. Clean the unit
using a damp, lint-free cloth and neutral detergent. Dry the unit with a dry, lint-free cloth.
WARNING: DO NOT REMOVE OR CLEAN THE FILTER BY YOURSELF
Removing and cleaning the filter can be dangerous. Removal and maintenance must be performed by a certified technician.

Cleaning Your Indoor Unit(Air Filter)
The filter prevents dust and other particles from entering the indoor unit. Dust buildup can reduce the efficiency of the air conditioner. For optimum efficiency, clean the air filter every two weeks or more frequently if you live in a dusty area. Replace the filter with a new one if it’s heavily clogged and cannot be cleaned. NOTE: In households with animals, you will have to periodically wipe down the grille to prevent animal hair blocking airflow.

Model A
1. In the stand-by mode, press the “MODE” and “DOWN” buttons on the remote controller a the same time for 3 seconds, the remote controller enters the panel-setting state, the remote controller displays “F2”.
2.Then press “DOWN” button on the remote controller, the air grille automatically goes down. When it stops, pick up the air filter.

a. Hold the upper edge of the filter with both hands. Gently turn and lift until the upper edge is free from the wire rope.
b. Lift the filter and move it forward slightly until the filter is separated from the 4 wire ropes.
c. Move the filter to the right until it is separated from the air grille , and then the filter can be taken out.

a b
c
48

Model B 1. Press the circular positon to open the two
screw covers, then remove the two screws.
Screw Cover 2. Hold and open the air grille, then take out the
air filter.
air filter 3. Clean the air filter
Dusts will accumulate on the filter along with the unit operation, and need to be removed from the filter,or the unit would not function effectively. Clean the filter every two weeks when you use the unit regularly. Clean the air filter with a vacuum cleaner or water. a. The air intake side should face up when using
a vacuum cleaner.

CAUTION
· Do not dry out the air filter under direct sunshine or with fire.
· The air filter should be installed before the unit body installation.
4. Re-install the air filter. 5. Press “UP” button on the remote controller
to reset the air grille. (Applicable to model A) Re-install the air grille by fixing the two screws and close the two screw covers. (Applicable to model B)
CAUTION
· Before changing the filter or cleaning, turn off the unit .
· When removing filter, do not touch metal parts in the unit. The sharp metal edges can hurt you.
· Do not use water to clean the inside of the indoor unit. This can destroy insulation and cause electrical shock.
· Do not expose filter to direct sunlight when drying. This can shrink the filter.
· Any maintenance and cleaning of outdoor unit should be performed by an authorized dealer or a licensed service provider.
· Any unit repairs should be performed by an authorized dealer or a licensed service provider.
· When the air grille is rising, please do not hinder the grille from rising with your hands or other objects. Please do not pull the wire rope, if necessary, please contact the local customer service team.

b. The air intake side should face down when using clean water.

For excessive dusts, use a soft brush and natural detergent to clean it and dry in a cool place.

Maintenance your AC.
Maintenance Long Periods of Non-Use
If you plan not to use your air conditioner for an extended period of time, do the following:

Maintenance Pre-Season Inspection
After long periods of non-use, or before periods of frequent use, do the following:

Clean all filters

Turn on FAN function until unit dries out completely

Check for damaged wires Clean all filters

Check for leaks

Turn off the unit and disconnect the power

Remove batteries from remote control

Make sure nothing is blocking all air inlets and outlets

Replace batteries

TROUBLESHOOTING

CAUTION
If any of the following conditions occurs, turn off your unit immediately! · The power cord is damaged or abnormally warm · You smell a burning odor · The unit emits loud or abnormal sounds · A power fuse blows or the circuit breaker frequently trips · Water or other objects fall into or out of the unit DO NOT ATTEMPT TO FIX THESE YOURSELF! CONTACT AN AUTHORIZED SERVICE PROVIDER IMMEDIATELY

Common Issues

The following problems are not a malfunction and in most situations will not require repairs.

Issue
Unit does not turn on when pressing ON/OFF button

Possible Causes
The Unit has a 3-minute protection feature that prevents the unit from overloading. The unit cannot be restarted within three minutes of being turned off.
Cooling and Heating Models: If the Operation light and PRE-DEF (Pre-heating/ Defrost) indicators are lit up, the outdoor temperature is too cold and the unit’s anti-cold wind is activated in order to defrost the unit. In Cooling- only Models: If the “Fan Only” indicator is lit up, the outdoor temperature is too cold and the unit’s anti-freeze protection is activated in order to defrost the unit.

The unit changes from COOL/HEAT mode to FAN mode
The indoor unit emits white mist Both the indoor and outdoor units emit white mist

The unit may change its setting to prevent frost from forming on the unit. Once the temperature increases, the unit will start operating in the previously selected mode again. The set temperature has been reached, at which point the unit turns off the compressor. The unit will continue operating when the temperature fluctuates again.
In humid regions, a large temperature difference between the room’s air and the conditioned air can cause white mist.
When the unit restarts in HEAT mode after defrosting, white mist may be emitted due to moisture generated from the defrosting process.

The indoor unit makes noises

A squeaking sound is heard when the system is OFF or in COOL mode. The noise is also heard when the drain pump (optional) is in operation.
A squeaking sound may occur after running the unit in HEAT mode due to expansion and contraction of the unit’s plastic parts.

Both the indoor unit and outdoor unit make noises

Low hissing sound during operation: This is normal and is caused by refrigerant gas flowing through both indoor and outdoor units.
Low hissing sound when the system starts, has just stopped running, or is defrosting: This noise is normal and is caused by the refrigerant gas stopping or changing direction.

Squeaking sound: Normal expansion and contraction of plastic and metal parts caused by temperature changes during operation can cause squeaking noises.

Issue

Possible Causes

The outdoor unit makes noises

The unit will make different sounds based on its current operating mode.

Dust is emitted from The unit may accumulate dust during extended periods of non-use, which will be

either the indoor or emitted when the unit is turned on. This can be mitigated by covering the unit during

outdoor unit

long periods of inactivity.

The unit emits a bad odor

The unit may absorb odors from the environment (such as furniture, cooking, cigarettes, etc.) which will be emitted during operations.
The unit’s filters have become moldy and should be cleaned.

The fan of the outdoor unit does not operate During operation, the fan speed is controlled to optimize product operation.

NOTE
If problem persists, contact a local dealer or your nearest customer service center. Provide
them with a detailed description of the unit malfunction as well as your model number.

Troubleshooting

When troubles occur, please check the following points before contacting a repair company.

Problem

Possible Causes

Solution

Temperature setting may be higher than ambient room temperature

Lower the temperature setting

Poor Cooling Performance

The heat exchanger on the indoor or outdoor unit is dirty
The air filter is dirty
The air inlet or outlet of either unit is blocked Doors and windows are open
Excessive heat is generated by sunlight Too many sources of heat in the room (people, computers, electronics, etc.) Low refrigerant due to leak or long- term use

Clean the affected heat exchanger
Remove the filter and clean it according to instructions Turn the unit off, remove the obstruction and turn it back on Make sure that all doors and windows are closed while operating the unit Close windows and curtains during periods of high heat or bright sunshine
Reduce amount of heat sources
Check for leaks, re-seal if necessary and top off refrigerant

Problem
The unit is not working

Possible Causes Power failure The power is turned off The fuse is burned out

Solution Wait for the power to be restored Turn on the power Replace the fuse

The Unit’s 3-minute protection Wait three minutes after restarting

has been activated

the unit

Timer is activated

Turn timer off

There’s too much or too little refrigerant in the system

Check for leaks and recharge the system with refrigerant.

The unit starts and stops frequently
Poor heating performance

Incompressible gas or moisture has entered the system.
System circuit is blocked

Evacuate and recharge the system with refrigerant
Determine which circuit is blocked and replace the malfunctioning piece of equipment

The compressor is broken
The voltage is too high or too low
Cold air is entering through doors and windows
Low refrigerant due to leak or long-term use

Replace the compressor
Install a manostat to regulate the voltage
Make sure that all doors and windows are closed during use
Check for leaks, re-seal if necessary and top off refrigerant

TRADEMARKS, COPYRIGHTS AND LEGAL STATEMENT
logo, word marks, trade name, trade dress and all versions thereof are valuable assets of Midea Group and/or its affiliates (“Midea”), to which Midea owns trademarks, copyrights and other intellectual property rights, and all goodwill derived from using any part of an Midea trademark. Use of Midea trademark for commercial purposes without the prior written consent of Midea may constitute trademark infringement or unfair competition in violation of relevant laws.
This manual is created by Midea and Midea reserves all copyrights thereof. No entity or individual may use, duplicate, modify, distribute in whole or in part this manual, or bundle or sell with other products without the prior written consent of Midea.
All the described functions and instructions were up to date at the time of printing this manual. However, the actual product may vary due to improved functions and designs.
DISPOSAL AND RECYCLING
Important instructions for environment(European Disposal Guidelines)
Compliance with the WEEE Directive and Disposing of the Waster Product: This product complies with EU WEEE Directive (2012/19/EU). This product bears a classification symbol for waster electrical and electronic equipment (WEEE). This symbol indicates that this product shall not be disposed with other household wastes at the end of its service life. Used device must be returned to official collection point for recycling of electrical electronic devices. To find these collection systems please contact to your local authorities or retailer where the product was purchased. Each household performs important role in recovering and recycling of old appliance. Appropriate disposal of used appliance helps prevent potential negative consequences for the environment and human health.
54

DATA PROTECTION NOTICE
For the provision of the services agreed with the customer, we agree to comply without restriction with all stipulations of applicable data protection law, in line with agreed countries within which services to the customer will be delivered, as well as, where applicable, the EU General Data Protection Regulation (GDPR). Generally, our data processing is to fulfil our obligation under contract with you and for product safety reasons, to safeguard your rights in connection with warranty and product registration questions. In some cases, but only if appropriate data protection is ensured, personal data might be transferred to recipients located outside of the European Economic Area. Further information are provided on request. You can contact our Data Protection Officer via MideaDPO@midea.com. To exercise your rights such as right to object your personal date being processed for direct marketing purposes, please contact us via MideaDPO@midea.com. To find further information, please follow the QR Code.
55

The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details. Any updates to the manual will be uploaded to the service website, please check for the latest version.

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One Way Cassette Mini Splits AC and Heat Units

Specifications:

Product Overview:

Product Installation:

Install Your Indoor Unit:

Install Your Outdoor Unit:

Refrigerant Piping Connection:

Wiring Precautions:

Air Evacuation:

Panel Installation:

Test Run:

Operation Instructions:

Indoor Unit Display:

Remote Control Operations:

Cleaning and Maintenance:

Troubleshooting:

FAQ:

Q: How often should I clean the air filters?

Q: What should I do if the air conditioner stops cooling?

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