Toshiba MMK-UP0301HP-AE User manual

Installation Manual
Indoor Unit
High-Wall Type
Model name:
MMK-UP0271HP-AE
MMK-UP0301HP-AE
MMK-UP0361HP-AE
Installation Manual 1 English
1130550107
For commercial use
AIR CONDITIONER (MULTI TYPE)
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1-EN
Installation Manual
Please read this Installation Manual carefully before installing the Air Conditioner.
• This Manual describes the installation method of the indoor unit.
• For installation of the outdoor unit, follow the Installation Manual attached to the outdoor unit.
• For precaution for safety, follow the Installation Manual attached to the outdoor unit.
ADOPTION OF NEW REFRIGERANT
This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the
conventional refrigerant R22 in order to prevent destruction of the ozone layer.
Information
If U series models (TU2C-Link) are combined with models other than U series (TCC-Link), the wiring
specifications and maximum number of connectable indoor units will be changed. Pay attentions to
their communication specifications when carrying out the installation, maintenance, or repair.
For its details, refer to the “Electrical connection” in this Manual.
Contents
1 PRECAUTIONS FOR SAFETY .............................................. 5
2 ACCESSORY PARTS ..................................................... 11
3 SELECTION OF INSTALLATION PLACE ................................... 12
4 INSTALLATION OF INDOOR UNIT ......................................... 15
5 CUTTING A HOLE AND MOUNTING INSTALLATION PLATE................. 16
6 PIPING AND DRAIN HOSE INSTALLATION................................. 17
7 INDOOR UNIT FIXING..................................................... 21
8 DRAINAGE ............................................................... 21
9 REFRIGERANT PIPING ................................................... 22
10 ELECTRICAL CONNECTION .............................................. 25
11 APPLICABLE CONTROLS ................................................ 33
12 TEST RUN................................................................ 36
13 TROUBLESHOOTING ..................................................... 38
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Installation Manual
Thank you for purchasing this Toshiba air conditioner.
Please read carefully through these instructions that contain important information and ensure that you
understand them.
After completing the installation work, hand over this Installation Manual as well as the Owner’s Manual
provided to the user, and ask the user to keep them in a safe place for future reference.
Generic Denomination: Air Conditioner
Definition of Qualified Installer or Qualified Service Person
The air conditioner must be installed, maintained, repaired and removed by a qualified installer or
qualified service person. When any of these jobs is to be done, ask a qualified installer or qualified
service person to do them for you.
A qualified installer or qualified service person is an agent who has the qualifications and knowledge
described in the table below.
Agent Qualifications and knowledge which the agent must have
Qualified
installer
• The qualified installer is a person who installs, maintains, relocates and removes the
air conditioners made by Toshiba Carrier Corporation. He or she has been trained to install,
maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporation or,
alternatively, he or she has been instructed in such operations by an individual or individuals
who have been trained and is thus thoroughly acquainted with the knowledge related to these
operations.
• The qualified installer who is allowed to do the electrical work involved in installation, relocation
and removal has the qualifications pertaining to this electrical work as stipulated by the local
laws and regulations, and he or she is a person who has been trained in matters relating to
electrical work on the air conditioners made by Toshiba Carrier Corporation or, alternatively,
he or she has been instructed in such matters by an individual or individuals who have been
trained and is thus thoroughly acquainted with the knowledge related to this work.
• The qualified installer who is allowed to do the refrigerant handling and piping work involved
in installation, relocation and removal has the qualifications pertaining to this refrigerant
handling and piping work as stipulated by the local laws and regulations, and he or she is a
person who has been trained in matters relating to refrigerant handling and piping work on
the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been
instructed in such matters by an individual or individuals who have been trained and is thus
thoroughly acquainted with the knowledge related to this work.
• The qualified installer who is allowed to work at heights has been trained in matters relating
to working at heights with the air conditioners made by Toshiba Carrier Corporation or,
alternatively, he or she has been instructed in such matters by an individual or individuals who
have been trained and is thus thoroughly acquainted with the knowledge related to this work.
Qualified
service person
• The qualified service person is a person who installs, repairs, maintains, relocates and removes
the air conditioners made by Toshiba Carrier Corporation. He or she has been trained to install,
repair, maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporation
or, alternatively, he or she has been instructed in such operations by an individual or individuals
who have been trained and is thus thoroughly acquainted with the knowledge related to these
operations.
• The qualified service person who is allowed to do the electrical work involved in installation,
repair, relocation and removal has the qualifications pertaining to this electrical work as
stipulated by the local laws and regulations, and he or she is a person who has been trained in
matters relating to electrical work on the air conditioners made by Toshiba Carrier Corporation
or, alternatively, he or she has been instructed in such matters by an individual or individuals
who have been trained and is thus thoroughly acquainted with the knowledge related to this
work.
• The qualified service person who is allowed to do the refrigerant handling and piping work
involved in installation, repair, relocation and removal has the qualifications pertaining to this
refrigerant handling and piping work as stipulated by the local laws and regulations, and he or
she is a person who has been trained in matters relating to refrigerant handling and piping work
on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has
been instructed in such matters by an individual or individuals who have been trained and is
thus thoroughly acquainted with the knowledge related to this work.
• The qualified service person who is allowed to work at heights has been trained in matters
relating to working at heights with the air conditioners made by Toshiba Carrier Corporation or,
alternatively, he or she has been instructed in such matters by an individual or individuals who
have been trained and is thus thoroughly acquainted with the knowledge related to this work.
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Installation Manual
Definition of Protective Gear
When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective
gloves and ‘safety’ work clothing.
In addition to such normal protective gear, wear the protective gear described below when undertaking
the special work detailed in the table below.
Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury,
burns, electric shocks and other injuries.
Work undertaken Protective gear worn
All types of work Protective gloves
‘Safety’ working clothing
Electrical-related work
Gloves to provide protection for electricians and from heat
Insulating shoes
Clothing to provide protection from electric shock
Work done at heights
(50 cm or more) Helmets for use in industry
Transportation of heavy objects Shoes with additional protective toe cap
Repair of outdoor unit Gloves to provide protection for electricians and from heat
These safety cautions describe important matters concerning safety to prevent injury to users or other
people and damages to property. Please read through this manual after understanding the contents
below (meanings of indications), and be sure to follow the description.
Indication Meaning of Indication
WARNING Text set off in this manner indicates that failure to adhere to the directions in the warning could
result in serious bodily harm (*1) or loss of life if the product is handled improperly.
CAUTION Text set off in this manner indicates that failure to adhere to the directions in the caution could
result in slight injury (*2) or damage (*3) to property if the product is handled improperly.
*1: Serious bodily harm indicates loss of eyesight, injury, burns, electric shock, bone fracture, poisoning,
and other injuries which leave aftereffect and require hospitalization or long-term treatment as an
outpatient.
*2: Slight injury indicates injury, burns, electric shock, and other injuries which do not require hospitalization
or long-term treatment as an outpatient.
*3: Damage to property indicates damage extending to buildings, household effects, domestic livestock,
and pets.
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Installation Manual
Warning indications on the air conditioner unit
Warning indication Description
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect all remote
electric power supplies
before servicing.
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect all remote electric power supplies before servicing.
WARNING
Moving parts.
Do not operate unit with grille
removed.
Stop the unit before the servicing.
WARNING
Moving parts.
Do not operate unit with grille removed.
Stop the unit before the servicing.
CAUTION
High temperature parts.
You might get burned
when removing this panel.
CAUTION
High temperature parts.
You might get burned when removing this panel.
CAUTION
Do not touch the aluminum
fins of the unit.
Doing so may result in injury.
CAUTION
Do not touch the aluminium fins of the unit.
Doing so may result in injury.
CAUTION
BURST HAZARD
Open the service valves before
the operation, otherwise there
might be the burst.
CAUTION
BURST HAZARD
Open the service valves before the operation, otherwise there might be
the burst.
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Installation Manual
1PRECAUTIONS FOR SAFETY
• Ensure that all Local, National and International regulations are satisfied.
• Read this “PRECAUTIONS FOR SAFETY” carefully before Installation.
• The precautions described below include the important items regarding
safety. Observe them without fail.
• After the installation work, perform a trial operation (test run) to check for any
problem.
Follow the Owner’s Manual to explain how to use and maintain the unit to
the customer.
• Turn off the main power supply switch (or breaker) before the unit
maintenance.
• Ask the customer to keep the Installation Manual together with the Owner’s
Manual.
The manufacturer shall not assume any liability for the damage caused by not
observing the description of this manual.
WARNING
General
• Before starting to install the air conditioner, read through the Installation
Manual carefully, and follow its instructions to install the air conditioner.
• Only a qualified installer(*1) or qualified service person(*1) is allowed to
do installation work. Inappropriate installation may result in water leakage,
electric shock or fire.
• Do not use any refrigerant different from the one specifled for complement or
replacement. Otherwise, abnormally high pressure may be generated in the
refrigeration cycle, which may result in a failure or explosion of the product or
an injury to your body.
• Before opening the front panel of the indoor unit or service panel of the
outdoor unit, set the circuit breaker to the OFF position. Failure to set the
circuit breaker to the OFF position may result in electric shocks through
contact with the interior parts. Only a qualified installer(*1) or qualified
service person(*1) is allowed to remove the front panel of the indoor unit or
service panel of the outdoor unit and do the work required.
• Before carrying out the installation, maintenance, repair or removal work, be
sure to set the circuit breaker to the OFF position. Otherwise, electric shocks
may result.
• Place a “Work in progress” sign near the circuit breaker while the installation,
maintenance, repair or removal work is being carried out. There is a danger
of electric shocks if the circuit breaker is set to ON by mistake.
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Installation Manual
• Only a qualified installer(*1) or qualified service person(*1) is allowed to
undertake work at heights using a stand of 50 cm or more or to remove the
front panel of the indoor unit to undertake work.
• Wear protective gloves and safety work clothing during installation, servicing
and removal.
• Do not touch the aluminium fin of the unit. You may injure yourself if you do
so. If the fin must be touched for some reason, first put on protective gloves
and safety work clothing, and then proceed.
• Do not climb onto or place objects on top of the outdoor unit. You may fall or
the objects may fall off of the outdoor unit and result in injury.
• When work is performed at heights, use a ladder which complies with the
ISO 14122 standard, and follow the procedure in the ladder’s instructions.
Also wear a helmet for use in industry as protective gear to undertake the
work.
• Before cleaning the filter or other parts of the outdoor unit, set the circuit
breaker to OFF without fail, and place a “Work in progress” sign near the
circuit breaker before proceeding with the work.
• Before working at heights, put a sign in place so that no-one will approach
the work location, before proceeding with the work. Parts and other objects
may fall from above, possibly injuring a person below. While carrying out the
work, wear a helmet for protection from falling objects.
• Do not use the refrigerant other than R410A.
For the refrigerant type, check the outdoor unit to be combined.
• The refrigerant used by this air conditioner, follow to the outdoor unit.
• The air conditioner must be transported in stable condition. If any part of the
product is broken, contact the dealer.
• When the air conditioner must be transported by hand, carry it by two or
more people.
• Do not move or repair any unit by yourself. There is high voltage inside the
unit. You may get electric shock while removing the cover and main unit.
• This appliance is intended to be used by expert or trained users in shops,
in light industry, or for commercial use by lay persons.
Selection of installation location
• When the air conditioner is installed in a small room, provide appropriate
measures to ensure that the concentration of refrigerant leakage occur in the
room does not exceed the critical level.
• Do not install the air conditioner in a location that may be subject to a risk
of exposure to a combustible gas. If a combustible gas leaks and becomes
concentrated around the unit, a fire may occur.
• To transport the air conditioner, wear shoes with additional protective
toe caps.
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Installation Manual
• To transport the air conditioner, do not take hold of the bands around the
packing carton. You may injure yourself if the bands should break.
• Do not place any combustion appliance in a place where it is directly
exposed to the wind of air conditioner, otherwise it may cause imperfect
combustion.
• Do not install in a location where flammable gas leaks are possible. If the
gas leak and accumulate around the unit, it may ignite and cause a fire.
• Install the indoor unit at least 2.5 m above the floor level since otherwise
the users may injure themselves or receive electric shocks if they poke
their fingers or other objects into the indoor unit while the air conditioner is
running.
Installation
• Install the air conditioner securely in a location where the base can sustain
the weight adequately. If the strength is not enough, the unit may fall down
resulting in injury.
• Follow the instructions in the Installation Manual to install the air conditioner.
Failure to follow these instructions may cause the product to fall down or
topple over or give rise to noise, vibration, water leakage or other trouble.
• Carry out the specied installation work to guard against the possibility of high
winds and earthquake. If the air conditioner is not installed appropriately,
a unit may topple over or fall down, causing an accident.
• If refrigerant gas has leaked during the installation work, ventilate the room
immediately. If the leaked refrigerant gas comes in contact with fire, noxious
gas may generate.
• Use forklift to carry in the air conditioner units and use winch or hoist at
installation of them.
Refrigerant piping
• Install the refrigerant pipe securely during the installation work before
operating the air conditioner. If the compressor is operated with the valve
open and without refrigerant pipe, the compressor sucks air and the
refrigeration cycles is over pressurized, which may cause a injury.
• Tighten the flare nut with a torque wrench in the specified manner.
Excessive tighten of the flare nut may cause a crack in the flare nut after a
long period, which may result in refrigerant leakage.
• After the installation work, confirm that refrigerant gas does not leak.
If refrigerant gas leaks into the room and flows near a fire source, such as a
cooking range, noxious gas may be generated.
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Installation Manual
• When the air conditioner has been installed or relocated, follow the
instructions in the Installation Manual and purge the air completely so that no
gases other than the refrigerant will be mixed in the refrigerating cycle.
Failure to purge the air completely may cause the air conditioner to
malfunction.
• Nitrogen gas must be used for the airtight test.
• The charge hose must be connected in such a way that it is not slack.
Electrical wiring
• Only a qualified installer(*1) or qualified service person(*1) is allowed to
carry out the electrical work of the air conditioner. Under no circumstances
must this work be done by an unqualified individual since failure to carry out
the work properly may result in electric shocks and/or electrical leaks.
• To connect the electrical wires, repair the electrical parts or undertake
other electrical jobs, wear gloves to provide protection for electricians and
from heat, insulating shoes and clothing to provide protection from electric
shocks. Failure to wear this protective gear may result in electric shocks.
• Use wiring that meets the specifications in the Installation Manual and the
stipulations in the local regulations and laws. Use of wiring which does not
meet the specifications may give rise to electric shocks, electrical leakage,
smoking and/or a fire.
• Connect earth wire. (grounding work)
Incomplete grounding causes an electric shock.
• Do not connect earth wires to gas pipes, water pipes, and lightning
conductor or telephone earth wires.
• After completing the repair or relocation work, check that the earth wires are
connected properly.
• Install a circuit breaker that meets the specifications in the installation
manual and the stipulations in the local regulations and laws.
• Install the circuit breaker where it can be easily accessed by the agent.
• When installing the circuit breaker outdoors, install one which is designed to
be used outdoors.
• Under no circumstances the power wire must not be extended.
Connection trouble in the places where the wire is extended may give rise to
smoking and/or a fire.
• Electrical wiring work shall be conducted according to law and regulation
in the community and installation manual. Failure to do so may result in
electrocution or short circuit.
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Installation Manual
Test run
• Before operating the air conditioner after having completed the work, check
that the electrical control box cover of the indoor unit and service panel of
the outdoor unit are closed, and set the circuit breaker to the ON position.
You may receive an electric shock if the power is turned on without first
conducting these checks.
• If there is any kind of trouble (such as an error display has appeared, smell
of burning, abnormal sounds, the air conditioner fails to cool or heat or
water is leaking) has occurred in the air conditioner, do not touch the
air conditioner yourself but set the circuit breaker to the OFF position,
and contact a qualified service person. Take steps to ensure that the power
will not be turned on (by marking “out of service” near the circuit breaker,
for instance) until qualified service person(*1) arrives. Continuing to use the
air conditioner in the trouble status may cause mechanical problems to
escalate or result in electric shocks or other trouble.
• After the work has finished, use an insulation tester set (500V Megger) to
check the resistance is 1MΩor more between the charge section and the
non-charge metal section (earth section). If the resistance value is low,
a disaster such as a leak or electric shock is caused at user’s side.
• Upon completion of the installation work, check for refrigerant leaks and
check the insulation resistance and water drainage. Then conduct a test run
to check that the air conditioner is operating properly.
Explanations given to user
• Upon completion of the installation work, tell the user where the circuit
breaker is located. If the user does not know where the circuit breaker is,
he or she will not be able to turn it off in the event that trouble has occurred
in the air conditioner.
• If the fan grille is damaged, do not approach the outdoor unit but set the
circuit breaker to the OFF position, and contact a qualified service person(*1)
to have the repairs done. Do not set the circuit breaker to the ON position
until the repairs are completed.
• After the installation work, follow the Owner’s Manual to explain to the
customer how to use and maintain the unit.
Relocation
• Only a qualified installer(*1) or qualified service person(*1) is allowed to
relocate the air conditioner. It is dangerous for the air conditioner to be
relocated by an unqualified individual since a fire, electric shocks, injury,
water leakage, noise and/or vibration may result.
• While carrying out the pump-down work shut down the compressor before
disconnecting the refrigerant pipe. Disconnecting the refrigerant pipe with
the service valve left open and the compressor still operating will cause air or
other gas to be sucked in, raising the pressure inside the refrigeration cycle
to an abnormally high level, and possibly resulting in rupture, injury or other
trouble.
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Installation Manual
CAUTION
New refrigerant air conditioner installation
• This air conditioner adopts the new HFC refrigerant (R410A) which
does not destroy ozone layer.
• The characteristics of R410A refrigerant are; easy to absorb water, oxidizing
membrane or oil, and its pressure is approx. 1.6 times higher than that of
refrigerant R22. Accompanied with the new refrigerant, refrigerating oil has
also been changed. Therefore, during installation work, be sure that water,
dust, former refrigerant, or refrigerating oil does not enter the refrigerating
cycle.
• To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of
connecting sections of charging port of the main unit and installation tools
are changed from those for the conventional refrigerant.
• Accordingly the exclusive tools are required for the new refrigerant (R410A).
• For connecting pipes, use new and clean piping designed for R410A, and
please care so that water or dust does not enter.
To disconnect the appliance from main power supply.
• This appliance must be connected to the main power supply by means of a
switch with a contact separation of at least 3 mm.
The installation fuse (all types can be used) must be used for the power
supply line of this air conditioner.
Install the indoor unit at least 2.5 m above the floor level since otherwise
the users may injure themselves or receive electric shocks if they poke
their fingers or other objects into the indoor unit while the air conditioner
is running.
(*1) Refer to the “Definition of Qualified Installer or Qualified Service Person.”
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Installation Manual
2ACCESSORY PARTS
Part name Q’ty Shape Usage
Installation Manual 1 This manual (Hand over to customers)
Owner’s Manual 1 (Hand over to customers)
Installation plate 1
Wireless remote controller 1
Battery 2
Remote controller holder 1
Mounting screw Ø4 × 25R6
Flat head wood screw Ø3.1 × 16R2
Screw Ø4 × 10R3
Heat insulator 1
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Installation Manual
3SELECTION OF INSTALLATION PLACE
WARNING
• Install the air conditioner at enough strong place to withstand the weight of the unit.
If the strength is not enough, the unit may fall down resulting in injury.
CAUTION
• Do not install the air conditioner in a location subject to a risk of exposure to a combustible
gas.
If a combustible gas leaks and stays around the unit, a fire may occur.
Upon approval of the customer, install the air conditioner in a place that satisfies the following
conditions.
• Place where the unit can be installed horizontally.
• Place where a sufficient servicing space can be ensured for safety maintenance and check.
• Place where drained water will not cause any problem.
Avoid installing in the following places.
Select a location for the indoor unit where the cool or warm air will circulate evenly.
Avoid installation in the following kinds of locations.
• Saline area (coastal area).
• Locations with acidic or alkaline atmospheres (such as areas with hot springs, factories where
chemicals or pharmaceuticals are made and places where the exhaust air from combustion appliances
will be sucked into the unit).
Doing so may cause the heat exchanger (its aluminum fins and copper pipes) and other parts to
become corroded.
• Locations with atmospheres with mist of cutting oil or other types of machine oil.
Doing so may cause the heat exchanger to become corroded, mists caused by the blockage of the
heat exchanger to be generated, the plastic parts to be damaged, the heat insulators to peel off, and
other such problems to result.
• Places where iron or other metal dust is present. If iron or other metal dust adheres to or collects on
the interior of the air conditioner, it may spontaneously combust and start a fire.
• Locations where vapors from food oils are formed (such as kitchens where food oils are used).
Blocked filters may cause the air conditioner’s performance to deteriorate, condensation to form, the
plastic parts to be damaged, and other such problems to result.
• Locations near obstructions such as ventilation openings or lighting fixtures where the flow of the
blown air will be disrupted (a disruption of the air flow may cause the air conditioner’s performance to
deteriorate or the unit to shut down).
• Locations where an in-house power generator is used for the power supply.
The power line frequency and voltage may fluctuate, and the air conditioner may not work properly as a
result.
• On truck cranes, ships or other moving conveyances.
• The air conditioner must not be used for special applications (such as for storing food, plants, precision
instruments or art works).
(The quality of the items stored may be degraded.)
• Locations where high frequencies are generated (by inverter equipment, in-house power generators,
medical equipment or communication equipment).
(Malfunctioning or control trouble in the air conditioner or noise may adversely affect the equipment’s
operation.)
• Locations where there is anything under the unit installed that would be compromised by wetness.
(If the drain has become blocked or when the humidity is over 80%, condensation from the indoor unit
will drip, possibly causing damage to anything underneath.)
• In the case of the wireless type of system, rooms with the inverter type of fluorescent lighting or
locations exposed to direct sunlight.
(The signals from the wireless remote controller may not be sensed.)
• Locations where organic solvents are being used.
• The air conditioner cannot be used for liqueed carbonic acid cooling or in chemical plants.
• Location near doors or windows where the air conditioner may come into contact with high-temperature,
high-humidity outdoor air.
(Condensation may occur as a result.)
• Locations where special sprays are used frequently.
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Installation Manual
50 mm or more
Shield pipe
Hook
Installation plate
Air filter
(Attach to the front panel)
Hook
*1
*2
Installation diagram of Indoor and outdoor units
The auxiliary piping can be connected to the left,
rear left, rear right, right, bottom right or bottom left.
Right
Rear right
Bottom
right
Rear
left Bottom left
Left
Insulate the refrigerant pipes separately
with insulation, not together.
6 mm thick heat resisting polyethylene foam
BatteriesWireless
remote
controller
Remote control
holder
Flat head
wood
screw
Heat insulator
191 mm or more
170 mm or more
Split out 2 pieces of SPACER from indoor unit
packing material, insert between the indoor unit and
wall to tilt the indoor unit for better operation.
For the rear left, bottom left and left piping
Wall
SPACER
Split Packing material
Do not allow the drain hose to get slack.
Make sure to run
the drain hose
sloped downward.
Cut the piping
hole sloped
slightly.
Refrigerant piping must be protected from physical
damage. Install a plastic cover or equivalent.
Before installing the wireless remote controller
1. Remove the battery
cover.
2. Insert 2 new batteries
(R03 [AAA] type)
following the (+) and (−)
positions.
Wireless
remote controller
Cover
Batteries
Hook
Installation space
The indoor unit shall be installed at least 2.5 m height.
Also it must be avoided to put anything on top of the indoor unit.
*1 Reserve space required to install the indoor unit and for service work.
Keep 50 mm or more for clearance between top plate of the indoor unit and the ceiling surface.
*2 Provide a space as shown for service clearance for the cross flow fan.
Installation place
• A place which provides the spaces around the indoor unit as shown in the above diagram.
• A place where there is no obstacle near the air inlet and outlet.
• A place that allows easy installation of the piping to the outdoor unit.
• A place which allows the front panel to be opened.
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Installation Manual
CAUTION
• Direct sunlight to the indoor unit’s wireless receiver should be avoided.
• The microprocessor in the indoor unit should not be too close to RF noise sources.
(For details, see the owner’s manual.)
Wireless remote controller
• A place where there are no obstacles such as a curtain that may block the signal from the indoor unit.
• Do not install the remote controller in a place exposed to direct sunlight or close to a heating source,
such as a stove.
• Keep the remote controller at least 1 m apart from the nearest TV set or stereo equipment.
(This is necessary to prevent image disturb-bounces or noise interference.)
• The location of the remote controller should be determined as shown below.
Indoor unit
(Side view) (Top view)
Indoor unit
Reception
range Remote controller
Reception range
Remote controller
* : Axial distance
* 7 m
7 m
60°
45°
45°
5 m
5 m
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Installation Manual
4INSTALLATION OF INDOOR UNIT
WARNING
Install the air conditioner certainly to sufficiently withstand the weight.
If the strength is insufficient, the unit may fall down resulting in human injury.
Perform a specified installation work to guard against strong wind or earthquake.
An incomplete installation can cause accidents by the units falling and dropping.
REQUIREMENT
Strictly comply with the following rules to prevent damage of the indoor units and human injury.
• Do not put a heavy article on the indoor unit. (Even units are packaged)
• Carry in the indoor unit as it is packaged if possible. If carrying in the indoor unit unpacked by
necessity, be sure to use buffering cloth, etc. to not damage the unit.
• To move the indoor unit, do not apply force to the refrigerant pipe, drain pan, foamed parts, or resin
parts, etc.
• Carry the package by two or more persons, and do not bundle it with plastic band at positions other
than specified.
Be careful to the following items when installating the unit.
• Considering air discharge direction, select an installation place where discharge air can circulate evenly
in a room. Avoid to install the unit at place with “NO GOOD” mark in the right figure.
Bad installation place
: Not cooled well.
Good installation place
Cooled well all over.
Screen
NO GOODOK
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Installation Manual
5CUTTING A HOLE AND MOUNTING INSTALLATION
PLATE
Cutting a hole
In case of installing the refrigerant pipes from the
rear:
1Decide the hole position for piping at
110 mm from the arrow mark (Ö) on the
installation plate and drill a hole at a slight
downward slant toward outdoor side.
Dia 80 mm
Unit outline
110 mm
50
NOTE
• When drilling a wall that contains a metal lath,
wire lath or metal plate, be sure to use a pipe
hole brim ring sold separately.
Mounting the installation plate
Mounting
screw
Pipe
hole
Indoor unit
Hook
Hook
Thread
Weight Pipe hole
Hook
Installation
plate
Mounting screw
Anchor bolt
holes
123
110
50
57
Mounting screw
Mounting
screw
61
23
Hook
When the installation plate is
directly mounted on the wall
1. Securely fit the installation plate onto the wall
by screwing it in the upper and lower parts to
hook up the indoor unit.
2. To mount the installation plate on a concrete
wall with anchor bolts, utilize the anchor bolt
holes as illustrated in the above figure.
3. Install the installation plate horizontally in the
wall.
CAUTION
When installing the installation plate with a
mounting screw, do not use the anchor bolt
hole. Otherwise the unit may fall down and
result in personal injury and property damage.
5 mm dia. hole
Clip anchor
(local parts)
Mounting screw
Ø4 mm × 25R
Anchor bolt
Projection
15 mm or less
NO
GOOD
NO
GOOD
OK
CAUTION
Failure to firmly install the unit may result in
personal injury and property damage if the unit
falls.
• In case of block, brick, concrete or similar type
walls, make 5 mm dia. holes in the wall.
• Insert clip anchors for appropriate mounting
screws.
NOTE
• Secure four corners and lower parts of the
installation plate with 6 mounting screws to
install it.
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Installation Manual
6PIPING AND DRAIN HOSE INSTALLATION
Piping and drain hose forming
* Since dewing results in a machine trouble, make sure to insulate both connecting pipes.
(Use polyethylene foam as insulating material.)
Rear right
Rear left
Bottom left
Left
Bottom right
Right
Die-cutting
front panel slit
Piping preparation
Changing
drain hose
1. Die-cutting front panel slit
Cut out the slit on the left or right side of the front panel for the left or right connection and the slit
on the bottom left or right side of the front panel for the bottom left or right connection with a pair of
nippers.
2. Changing drain hose
For leftward connection, bottom-leftward connection and rear-leftward connection’s piping, it is
necessary to change the drain hose and drain cap.
How to remove the drain hose
• The drain hose can be removed by removing the screw securing
the drain hose and then pulling out the drain hose.
• When removing the drain hose, be careful of any sharp edges of
steel plate. The edges can injuries.
• To install the drain hose, insert the drain hose firmly until the
connection part contacts with heat insulator, and then secure it
with original screw. Drain hose
Screw
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Installation Manual
How to remove the drains cap
Clip the drain cap by needle-nose pliers and pull out.
Drain cap
How to fix the drains cap
1) Insert hexagonal wrench (dia. 4 mm) in a centre head.
Drain cap
2) Firmly insert drains cap.
No gap Insert a hexagon
wrench (4 mm)
Do not apply lubricating oil
(refrigerant machine oil) when
inserting the drain cap. Application
causes deterioration and drain
leakage from the plug.
CAUTION
Firmly insert the drain hose and drain cap; otherwise, water may leak.
How to remove the drain hose
1) Remove the front panel.
2) Remove the screws of drain hose.
3) Pull out the drain hose.
How to fix the drain hose
1) Put the drain hose.
2) Screw the drain hose to the indoor unit.
3) Install the front panel.
TIn case of right or left piping
• After scribing slits of the front panel with a knife or a marking-off pin, cut them with a pair of nippers or
an equivalent tool.
Slit
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Installation Manual
TIn case of bottom right or bottom left piping
• After scribing slits of the front panel with a knife or a marking-off
pin, cut them with a pair of nippers or an equivalent tool.
Slit
TLeft-hand connection with piping
Bend the connecting pipe so that it is laid within 43 mm above the wall surface. If the connecting pipe
is laid exceeding 43 mm above the wall surface, the indoor unit may unstably be set on the wall. When
bending the connecting pipe, make sure to use a spring bender so as not to crush the pipe.
Bend the connecting pipe within a radius of 30 mm.
To connect the pipe after installation of the unit (figure)
545 mm Liquid side
(To the forefront of flare)
645 mm Gas side
Outward of indoor unit
43 mm
R 30 mm (Use polisin (polyethylene)
core or the like for bending pipe.)
Use the handle of screwdriver, etc.
80°
NOTE
If the pipe is bent incorrectly, the indoor unit may unstably be set on the wall.
After passing the connecting pipe through the pipe hole, connect the connecting pipe to the auxiliary
pipes and wrap the facing tape around them.
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