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, or fire, or cause the equipment to fail.
NameShapeQuantity
Installation plate
1
Plastic expansion sheath
Self-tapping screw AST3.9X25
Drain joint (some models)
Seal ring (some models)
Connecting
pipe
assembly
User’s manual
Installation manual
Transfer connector (packed with the indoor unit
or outdoor unit, depending on the model)
(NOTE: Pipe sizes dier from appliance to appliance.
To meet dierent pipe size requirements, sometimes a
transfer connector must be installed on the outdoor
Magnetic ring
(After installation, hitch this on the connective cable
between the indoor and outdoor units.)
Liquid side
Gas side
unit.)
Ø 6.35
Ø 9.52
Ø 9.52
Ø 12.7
Ø 15.9
5-8
(depending on the models)
5-8
(depending on the models)
1
1
Parts you must purchase
(consult your technician
for the proper size)
1
1
Optional part
(one piece per indoor unit)
Optional part
(1-5 pieces per outdoor unit,
depending on the model)
Optional part
(One piece per cable)
Cord protection rubber ring
(If the cord clamp cannot fasten the cord
because the cord is too small, wrap the cord
protection rubber ring (supplied with the
accessories) around the cord. Then x it with
the cord clamp.)
Optional Accessories
There are two types of remote controls: wired and wireless.
Select a remote control according to the customer's request and install it in an appropriate place.
To select a suitable remote control, refer to catalogues and technical literature.
Page 4
(on some models)
1
Safety Precautions
Failure to observe a warning may result in death. The appliance must be installed in
accordance with national regulations.
Failure to observe a caution may result in injury or equipment damage.
Read safety precautions before 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.
WARNING
CAUTION
WARNING
2
• Carefully read the safety precautions before installation.
• In certain functional environments, such as kitchens, server rooms, etc., the use of specially
designed air-conditioning units is highly recommended.
• Only trained and certied technicians should install, repair, and service this air
conditioning unit.
• Improper installation may result in electrical shock, short circuit, leaks, fire, or other damage to
equipment and personal property.
• Strictly follow the installation instructions set forth in this manual.
• Before you install the unit, consider strong winds, typhoons, and earthquakes that might aect
your unit and locate it accordingly. Failure to do so could cause damage to the unit.
• After installation, ensure there are no refrigerant leaks and that the unit is operating properly.
Refrigerant is toxic and flammable and poses a serious health and safety risk.
Note about Fluorinated Gasses
1. This air conditioning unit contains fluorinated gasses. For specific information on the type of gas
and the amount, please refer to the relevant label on the unit itself.
2. Installation, service, maintenance, and repair of this unit must be performed by a certified
technician.
3. Product uninstallation and recycling must be performed by a certified technician.
4. If the system has a leak-detection system installed, it must be checked for leaks at least every 12
months.
5.
When the unit is checked for leaks, proper record-keeping of all checks is strongly recommended.
Page 5
Unit Installation
LN
Overview
Installation Overview
3
INSTALLATION ORDER
1
Install the outdoor unit
(Page 9)
2
Connect the refrigerant pipes
(Page 12)
5
3
Connect the wires
(Page 14)
4
MCMC
Page 6
Perform a test run
(Page 22)
Evacuate the refrigeration
system
(Page 20)
Installation Diagram
Installation Diagram
4
Installation
Diagram
More than 4.7 in (12 см)
More than 4.7 in (12 см)
More than 4.7 in (12 см)
More than 4.7 in
(12 см)
More than
3.9 in (10 см)
More than 78.7 in (200 см)
More than 5.9 in (15 см)
More than 4.7 in
(12 см)
(60 см)
More than 23.6 in
More than
11.8 in (30 см)
More than
23.6 in (60 см)
Safety Precautions
CAUTION
•This illustration is for explanation purposes
only. The actual shape of your air
condtioner may be slightly dierent.
•
Copper lines must be insulated
independently.
Fig. 4.1
CAUTION
• To prevent unnecessary damage to the wall,
use a stud nder to locate studs.
A minimum pipe run of 9.8 ft (3 m) is required
•
to minimize vibration and excessive noise.
•
Two of the A, B, and C directions should be
free from obstructions.
Page 7
Specications
Table 5.1
5
Specications
Indoor units that can be used in
combination
Compressor stop/start frequencyStop time3 minutes or more
Power source voltage
Table 5.2
Max. length for all rooms98.4/30147.6/45
Max. length for one indoor unit65.6/2082/25
Max. height dierent between
indoor and outdoor unit
Max. height dierence between indoor units
When installing multiple indoor units to a single outdoor unit, ensure that the length of the refrigerant
pipe and the drop height between the indoor and outdoor units meet the following requirements:
Outdoor unit
Number of connected
units
Voltage uctuationwithin ± 10% of rated voltage
Voltage drop during startwithin ± 15% of rated voltage
Interval unbalancewithin ± 3% of rated voltage
1 drive 21 drive 3
OU higher than IU
OU lower than IU49/1549/15
32.8/1032.8/10
32.8/1032.8/10
Indoor unit
1-5 units
Unit: ft/m
1 drive 41 drive 5
196.8/60246/75
98.4/3098.4/30
32.8/1032.8/10
49/1549/15
32.8/1032.8/10
Max. height dierence
Outdoor Unit
Page 8
Indoor unit
49ft (15m)
49ft (15m)
32.8ft (10m)
Indoor unit
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