1 PRECAUTION FOR SAFETY ........................................ 1
2 INSTALLATION DIAGRAM OF INDOOR AND
OUTDOOR UNITS .........................................................4
3 OPTIONAL PARTS, ACCESSORIES AND TOOLS ......5
4 INSTALLATION OF INDOOR UNIT ............................... 7
5 INSTALLATION OF OUTDOOR UNIT ......................... 14
6 TEST OPERATION ......................................................18
7 REMOVING THE MAIN PARTS ..................................19
* Please read this installation manual carefully before
installing the air conditioner.
i
1PRECAUTION FOR SAFETY
Be sure to read this installation manual carefully before installing.
The supplied CD-ROM contains the installation manual translated into many languages.
Recommend to the owner to perform maintenance periodically when using over long periods of time.
Be sure to follow the precautions provided here to avoid safety risks.
DANGER
WARNING
CAUTION
*1: A severe injury refers to blindness, injury, burns (hot or cold), electrical shock, bone fracture, or poisoning that leaves
aftereffects and requires hospitalization or extended out-patient treatment.
*2: Personal injury means a slight accident, burn, or electrical shock which does not require admission or repeated hospital
treatment.
*3: Property damage means greater damage which affects assets or resources.
It indicates that incorrect use of this unit can result in a high possibility of severe injury(*1) or death.
It indicates that incorrect use of this unit may cause severe injury or death.
It indicates that incorrect use of this unit may cause personal injury(*2), or property damage(*3).
The symbols and their meanings are shown below.
For general public use
Power supply cord of parts of appliance for outdoor use shall be at least polychloroprene sheathed flexible cord (design
H07RN-F) or cord designation 60245 IEC66 (1.5 mm
regulations.)
2
or more). (Shall be installed in accordance with national wiring
CAUTION
New refrigerant air conditioner installation
THIS AIR CONDITIONER USES THE NEW HFC REFRIGERANT (R410A), WHICH DOES NOT DESTROY THE OZONE
LAYER.
R410A refrigerant is apt to be affected by impurities such as water, oxidizing membranes, and oils because the pressure of
R410A refrigerant is approx. 1.6 times of refrigerant R22. As well as the adoption of this new refrigerant, refrigerating machine oil
has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerating machine
oil does not enter the refrigeration cycle of a new-refrigerant air conditioner. To avoid mixing refrigerant and refrigerating machine
oil, the sizes of charging port connecting sections on the main unit are different from those for the conventional refrigerant, and
different size tools are also required. For connecting pipes, use new and clean piping materials with highpressure withstand
capabilities, designed for R410A only, and ensure that water or dust does not enter. Moreover, do not use any existing piping as
its pressure withstand may be insufficient and may contain impurities.
DANGER
• FOR USE BY QUALIFIED PERSONS ONLY.
• MEANS FOR DISCONNECTION FROM THE SUPPLY HAVING A CONTACT SEPARATION OF AT LEAST 3 mm IN ALL
POLES MUST BE INCORPORATED IN THE FIXED WIRING.
• TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK. MAKE SURE ALL POWER
SWITCHES ARE OFF. FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.
• CONNECT THE CONNECTING CABLE CORRECTLY. IF THE CONNECTING CABLE IS CONNECTED WRONGLY,
ELECTRIC PARTS MAY BE DAMAGED.
• CHECK THE EARTH WIRE THAT IT IS NOT BROKEN OR DISCONNECTED BEFORE INSTALLATION.
• DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS. FAILURE TO FOLLOW THIS
INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION.
• TO PREVENT OVERHEATING THE INDOOR UNIT AND CAUSING A FIRE HAZARD, PLACE THE UNIT WELL AWAY
(MORE THAN 2 M) FROM HEAT SOURCES SUCH AS RADIATORS, HEATERS, FURNACE, STOVES, ETC.
• WHEN MOVING THE AIR CONDITIONER FOR INSTALLING IT IN ANOTHER PLACE AGAIN, BE VERY CAREFUL NOT
TO GET THE SPECIFIED REFRIGERANT (R410A) WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION
CYCLE. IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT, THE GAS PRESSURE IN THE
REFRIGERATION CYCLE BECOMES ABNORMALLY HIGH AND IT RESULTINGLY CAUSES BURST OF THE PIPE AND
INJURIES ON PERSONS.
• IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE INSTALLATION WORK,
IMMEDIATELY LET FRESH AIR INTO THE ROOM. IF THE REFRIGERANT GAS IS HEATED BY FIRE OR SOMETHING
ELSE, IT CAUSES GENERATION OF POISONOUS GAS.
1EN
• WHEN INSTALLING OR RE-INSTALLING THE AIR CONDITIONER, DO NOT INJECT AIR OR OTHER SUBSTANCES
BESIDES THE DESIGNATED REFRIGERANT “R410A” INTO THE REFRIGERATING CYCLE. IF AIR OR OTHER
SUBSTANCES ARE MIXED, AN ABNORMAL PRESSURE CAN OCCUR IN THE REFRIGERATING CYCLE, AND THIS
CAN CAUSE AN INJURY DUE TO A PIPE RUPTURE.
WARNING
• Installation work must be requested from the supplying retail dealership or professional vendors. Self-installation may cause
water leakage, electrical shock, or fire as a result of improper installation.
• Specified tools and pipe parts for model R410A are required, and installation work must be done in accordance with the
manual. HFC type refrigerant R410A has 1.6 times more pressure than that of conventional refrigerant (R22). Use the
specified pipe parts, and ensure correct installation, otherwise damage and/or injury may be caused. At the same time,
water leakage, electrical shock, and fire may occur.
• Be sure to install the unit in a place which can sufficiently bear its weight. If the load bearing of the unit is not enough, or
installation of the unit is improper, the unit may fall and result in injury.
• Electrical work must be performed by a qualified electrical engineer in accordance with the code governing such installation
work, internal wiring regulations, and the manual. A dedicated circuit and the rated voltage must be used. Insufficient power
supply or improper installation may cause electrical shock or fire.
• Use a cabtyre cable to connect wires in the indoor/outdoor units. Midway connection, stranded wire, and single-wire
connections are not allowed. Improper connection or fixing may cause a fire.
• Wiring between the indoor unit and outdoor units must be well shaped so that the cover can be firmly placed. Improper cover
installation may cause increased heat, fire, or electrical shock at the terminal area.
• Be sure to use only approved accessories or the specified parts. Failure to do so may cause the unit to fall, water leakage,
fire or electrical shock.
• After the installation work, ensure that there is no leakage of refrigerant gas. If the refrigerant gas leaks out of the pipe into
the room and is heated by fire or something else from a fanheater, stove or gas range, it causes generation of poisonous
gas.
• Make sure the equipment is properly earthed. Do not connect the earth wire to a gas pipe, water pipe, lightning conductor, or
telephone earth wire. Improper earth work may be the cause of electrical shock.
• Do not install the unit where flammable gas may leak. If there is any gas leakage or accumulation around the unit, it can
cause a fire.
• Do not select a location for installation where there may be excessive water or humidity, such as a bathroom. Deterioration of
insulation may cause electrical shock or fire.
• Installation work must be performed following the instructions in this installation manual. Improper installation may cause
water leakage, electrical shock or fire. Check the following items before operating the unit.
- Be sure that the pipe connection is well placed and there are no leaks.
- Check that the service valve is open. If the service valve is closed, it may cause overpressure and result in compressor
damage. At the same time, if there is a leak in the connection part, it may cause air suction and overpressure, resulting in
damage to the unit or injury.
• In a pump-down operation, be sure to stop the compressor unit before removing the refrigerant pipe. If removing the
refrigerant pipe while the compressor is operating with the service valve opened, it may cause air suction and overpressure,
resulting in damage to the unit or injury.
• Do not modify the power cable, connect the cable midway, or use a multiple outlet extension cable. Doing so may cause
contact failure, insulation failure, or excess current, resulting in fire or electrical shock.
• If you detect any damage, do not install the unit. Contact your supplying dealer immediately.
• Never modify this unit by removing any of the safety guards or bypassing any of the safety interlock switches.
CAUTION
• Please read this installation manual carefully before installing the unit. It contains further important instructions for proper
installation.
• Exposure of unit to water or other moisture before installation could result in electric shock. Do not store it in a wet basement
or expose to rain or water.
• After unpacking the unit, examine it carefully for possible damage.
• Do not install in a place that can increase the vibration of the unit. Do not install in a place that can amplify the noise level of
the unit or where noise and discharged air might disturb neighbors.
• This appliance must be connected to the main power supply by means of a circuit breaker depending on the place where the
unit is installed. Failure to do so may cause electrical shock.
• Follow the instructions in this installation manual to arrange the drain pipe for proper drainage from the unit. Ensure that
drained water is discharged. Improper drainage can result in water leakage, causing water damage to furniture.
• Tighten the flare nut with a torque wrench using the prescribed method. Do not apply excess torque. Otherwise, the nut may
crack after a long period of usage and it may cause the leakage of refrigerant.
EN
2
• Wear gloves (heavy gloves such as cotton gloves) for installation work. Failure to do so may cause personal injury when
handling parts with sharp edges.
• Do not touch the air intake section or the aluminum fins of the outdoor unit. It may cause injury.
• Do not install the outdoor unit in a place which can be a nest for small animals. Small animals could enter and contact
internal electrical parts, causing a failure or fire.
• Request the user to keep the place around the unit tidy and clean.
• Make sure to conduct a trial operation after the installation work, and explain how to use and maintain the unit to the
customer in accordance with the manual. Ask the customer to keep the operation manual along with the installation manual.
REQUIREMENT OF REPORT TO THE LOCAL POWER SUPPLIER
Please make absolutely sure that the installation of this appliance is reported to the local power supplier before installation. If you
experience any problems or if the installation is not accepted by the supplier, the service agency will take adequate
countermeasures.
3EN
2INSTALLATION DIAGRAM OF INDOOR AND OUTDOOR UNITS
The indoor unit shall be
installed so that the top of the
indoor unit is positioned at
least 2 m high. Also, avoid
putting anything on the top of
the indoor unit.
160 mm or
more
e Mounting screw
Hook
70 mm or more
Hook
a Installation
plate
180 mm or
more
For the rear left and left
piping
Wall
Insert the cushion between
the indoor unit and wall, and
2 m or more
Hook
Hook
tilt the indoor unit for better
installation work.
Do not allow the drain hose
CAUTION
Install in rooms that
3
or larger. If a
are 5 m
leak of refrigerant gas
occurs inside the
room, an oxygen
deficiency can occur.
b Wireless remote controller
d Remote controller holder
Air filters
Connecting
cable
Shield pipe
Z
(for extension
drain hose)
to become slack.
Cut the piping hole
slightly sloped
Make sure the drain hose is
sloped downward.
The auxiliary piping can be
f Remote controller
holder mounting
screw
Before installing the wireless
remote controller
• With the remote controller
cover removed, correctly
load the supplied batteries
while observing their
polarity.
b Wireless remote controller
Cover
c Batteries
When installing the outdoor unit,
leave open in at least two of
directions (A), (B), (C) and (D)
shown in the right figure.
100 mm or
more from
wall
200 mm or
more
(C)
80 mm or more only
when unobstructed to
the front and both sides
In principle,
leave open
(B)
Ensure sufficient space
to allow drainage
Y
50 mm or more
from wall
(D)
As shown in the
figure, position
power cord and
connecting
cable
downward, and
lead out along
piping
connection port.
(A)
250 mm or
more from wall
Connecting cable
power cord
Extension drain hose
connected at the left, rear
left, rear right, right, bottom
right or bottom left as shown
below.
Right
Rear
right
Bottom right
Rear left
Bottom left
Insulate the refrigerant pipes
separately, not together.
8 mm thick heat resisting
polyethylene foam
Left
• If the system will be used in cooling mode when the outdoor temperature is below zero, take measures to ensure that the
drain water does not freeze.
• When the outdoor unit is installed in a place that is always exposed to strong winds like on the coast or on a high story of
a building, secure the normal fan operation using a duct or a wind shield.
CAUTION
(RAS-***-ND model only)
• Use care to avoid burns. A heater is installed on the base plate of the outdoor unit. When the outside air temperature is low,
the heater runs to warm the base plate even if the unit is not operating so that snow does not accumulate inside the outdoor
unit.
• Do not use the supplied drain nipple for draining water. Drain the water from all the drain holes directly. Provide a space of at
least 50 cm under the outdoor unit so that the draining water does not freeze and block the drain holes.
• Secure the outdoor unit with the attachment bolts and nuts if the unit is
likely to be exposed to a strong wind.
• Use dia. 8 mm or dia. 10 mm anchor bolts and nuts.
• If it is necessary to drain the defrost water, attach drain nipple to the
base plate of the outdoor unit before installing it.
Elongated drain
hole
(h)
Suction side
Diffuser
Drain hole
(g)
Accessory and Installation Parts
Part No.Part name (Q’ty)Part No.Part name (Q’ty)Part No.Part name (Q’ty)
a
Installation plate x 1
b
Wireless remote controller x 1
c
Battery x 2
OthersNameThis model is not equipped with an
Owner’s manual
Installation manual
Important information
and warning*
B/W strips
(Energy efficiency labels)
d
Remote controller holder x 1
e
f
extension drain hose.
• For the extension drain hose, use a
commercially available one.
Mounting screw
φ4 x 25L x 7
Remote controller holder
mounting screw
φ3.1 x 16L x 2
g
Drain nipple* x 1
h
Water-proof rubber cap* x 2
Parts marked with asterisk (*) are packaged with the
outdoor unit.
5EN
Installation/Service Tools
Changes in the product and components
On air conditioners using R410A, in order to prevent any other refrigerant from being accidentally charged, the service port diameter
size of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch)
• In order to increase the pressure resisting strength of the refrigerant piping, flare processing diameter and opposing flare nuts sizes
have been changed. (for copper pipes with nominal dimensions 1/2 and 5/8)
New tools for R410A
New tools for R410AApplicable to R22 modelChanges
Gauge manifoldAs the working pressure is high, it is impossible to measure
Charge hoseIn order to increase pressure resisting strength, hose
the working pressure using conventional gauges. In order to
prevent any other refrigerant from being charged, the port
diameters have been changed.
materials and port sizes have been changed (to 1/2 UNF 20
threads per inch).
When purchasing a charge hose, be sure to confirm the
port size.
As working pressure is high and gasification speed is fast, it
is difficult to read the indicated value by means of charging
cylinder, as air bubbles occur.
The size of opposing flare nuts have been increased.
Incidentally, a common wrench is used for nominal
diameters 1/4 and 3/8.
of spring in the tool has been improved.
Gauge for projection adjustment—Used when flare is made by using conventional flare tool.
Vacuum pump adapterConnected to conventional vacuum pump. It is necessary to
Gas leakage detectorExclusive for HFC refrigerant.
• Incidentally, the “refrigerant cylinder” comes with the refrigerant designation (R410A) and protector coating in the U.S’s ARI
specified rose color (ARI color code: PMS 507).
• Also, the “charge port and packing for refrigerant cylinder” requires 1/2 UNF 20 threads per inch corresponding to the charge hose’s
port size.
use an adapter to prevent vacuum pump oil from flowing
back into the charge hose. The charge hose connecting
part has two ports — one is for conventional refrigerant (7/
16 UNF 20 threads per inch) and the other is for R410A. If
the vacuum pump oil (mineral) mixes with R410A, a sludge
may occur and damage the equipment.
EN
6
Loading...
+ 18 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.