En-1
Contents
1. SAFETY PRECAUTIONS .................................................................. 1
1.1. IMPORTANT! Please read before starting .................................. 1
1.2. Special precautions .................................................................... 1
2. PRODUCT SPECIFICATION ............................................................. 2
2.1. Precautions for using R410A refrigerant ..................................... 2
2.2. Installation tools .......................................................................... 2
2.3. For authorized service personnel only. ....................................... 2
2.4. Accessories ................................................................................ 2
2.5. Pipe requirement ........................................................................ 2
2.6. Electrical requirement ................................................................. 3
2.7. Optional parts ............................................................................. 3
3. INSTALLATION WORK ..................................................................... 3
3.1. Selecting an installation location ................................................ 3
3.2. Removing and replacing parts .................................................... 3
3.3. Pipe installation .......................................................................... 4
3.4. Electrical wiring ........................................................................... 6
3.5. Remote controller installation ..................................................... 8
4. OPTIONAL INSTALLATION WORK .................................................. 8
4.1. Optional kit installation ................................................................ 8
4.2. Group control ............................................................................ 10
5. FUNCTION SETTING...................................................................... 10
5.1. Function details ........................................................................ 10
5.2. Temperature correction ..............................................................11
6. TEST RUN ....................................................................................... 12
7. FINISHING
...................................................................................... 12
8. CUSTOMER GUIDANCE ................................................................ 13
9. ERROR CODES .............................................................................. 13
1. SAFETY PRECAUTIONS
1.1. IMPORTANT! Please read before starting
This air conditioning system meets strict safety and operating standards.
As the installer or service person, it is an important part of your job to install or service the
system so it operates safely and efficiently.
For safe installation and trouble-free operation, you must:
• Carefully read this instruction booklet before beginning.
• Follow each installation or repair step exactly as shown.
• Observe all local, state, and national electrical codes.
• Pay close attention to all warning and caution notices given in this manual.
WARNING:
This symbol refers to a hazard or unsafe practice which can result in
severe personal injury or death.
CAUTION:
This symbol refers to a hazard or unsafe practice which can result in
personal injury and the potential for product or property damage.
• Hazard alerting symbols
Electrical
Safety/alert
If Necessary, Get Help
These instructions are all you need for most installation sites and maintenance conditions.
If you require help for a special problem, contact our sales/service outlet or your certified
dealer for additional instructions.
In Case of Improper Installation
The manufacturer shall in no way be responsible for improper installation or maintenance
service, including failure to follow the instructions in this document.
1.2. Special precautions
When Wiring
ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A
QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYS-
TEM.
• Do not supply power to the unit until all wiring and tubing are completed or reconnected
and checked.
• Highly dangerous electrical voltages are used in this system. Carefully refer to the wir-
ing diagram and these instructions when wiring. Improper connections and inadequate
grounding (earthing) can cause accidental injury or death.
• Ground (earth) the unit following local electrical codes.
• Connect all wiring tightly. Loose wiring may cause overheating at connection points and
a possible fire hazard.
When Transporting
Be careful when picking up and moving the indoor and outdoor units. Get a partner to
help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin
aluminum fins on the air conditioner can cut your fingers.
When Installing...
...In a Ceiling or Wall
Make sure the ceiling/wall is strong enough to hold the unit’s weight. It may be necessary
to construct a strong wood or metal frame to provide added support.
...In a Room
Properly insulate any tubing run inside a room to prevent “sweating” that can cause drip-
ping and water damage to walls and floors.
...In an Area with High Winds
Securely anchor the outdoor unit down with bolts and a metal frame.
Provide a suitable air baffle.
...In a Snowy Area (for Heat Pump-type Systems)
Install the outdoor unit on a raised platform that is higher than drifting snow.
When Connecting Refrigerant Tubing
• Keep all tubing runs as short as possible.
• Use the flare method for connecting tubing.
• Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before
connecting them, then tighten the nut with a torque wrench for a leak-free connection.
• Check carefully for leaks before opening the refrigerant valves.
When Servicing
• Turn the power OFF at the main circuit breaker panel before opening the unit to check
or repair electrical parts and wiring.
• Keep your fingers and clothing away from any moving parts.
• Clean up the site after you finish, remembering to check that no metal scraps or bits of
wiring have been left inside the unit being serviced.
• After installation, explain correct operation to the customer, using the operation manual.
WARNING
• Never touch electrical components immediately after the power supply has been
turned off. Electric shock may occur. After turning off the power, always wait 10 min-
utes before touching electrical components.
• If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant
comes in contact with a flame, it produces a toxic gas.
• Keep any required ventilation openings clear of obstruction.
• If the power cable or the connection cable is damaged, it must be replaced by the
manufacturer, its service agent or similar qualifi ed persons in order to avoid a safety
hazard.
• Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
• Branch box which is specified in this manual is the equipment to support the indoor unit
of multi-split type.
• All products are manufactured to metric units and tolerances. United States customary
units are provided for reference only. In cases where exact dimensions and tolerances
are required, always refer to metric units.
For authorized service personnel only.
AIR CONDITIONER
Wall-mounted type
INSTALLATION MANUAL
PART No. 9387082593-01
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