Toshiba RAV-SM452MUT-E, RAV-SM402MUT-E, RAV-SM562MUT-E INSTALLATION MANUAL
AIR CONDITIONER (SPLIT TYPE)
Installation Manual
Indoor Unit
Model name:
4-way Air Discharge Cassette Type
RAV-SM402MUT-E
RAV-SM452MUT-E
RAV-SM562MUT-E
Not accessible to the general public
Installation manual
Air conditioner (Split type)
1
English
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.
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.
CONTENTS
Accessory parts and Parts to be procured locally ........................................... 2
1 PRECAUTIONS FOR SAFETY .................................................................. 3
2 SELECTION OF INSTALLATION PLACE.................................................. 5
3 INSTALLATION OF INDOOR UNIT ........................................................... 7
4 DRAIN PIPING WORK ............................................................................. 11
5 REFRIGERANT PIPING AND EVACUATING .......................................... 14
6 ELECTRICAL WORK............................................................................... 16
7 TEST RUN................................................................................................ 20
8 APPLICABLE CONTROLS...................................................................... 23
9 TROUBLESHOOTING ............................................................................. 27
10 MAINTENANCE ....................................................................................... 30
English-1
1
Accessory parts and Parts to be procured locally
r Accessory parts
Part name
Installation Manual
Heat insulating pipe
Installation pattern
Installation gauge
Pattern fixing screw
Heat insulator
Washer
Hose band
Flexible hose
Heat insulator A
Q’ty
2
2
1
2
4
1
8
1
1
1
Shape
These manual
——
M5 × 16L
Usage
(Be sure to hand over to customers)
For heat insulation of pipe connecting section
For confirmation of ceiling opening and main unit position
For positioning of ceiling position
(united with installation pattern)
For attachment of the installation pattern
For heat insulation of drain connecting section
For hanging-down unit
For connecting drain pipe
For adjusting core-out of drain pipe
For sealing of wire connecting port
Heat insulator B
Owner’s Manual
1
1
<Separate sold parts>
Part name
Standard wired
remote controller
Ceiling panel
Q’ty
1
1
Shape
DATA
SET
TEST
SETTING
UNIT No.
R.C. No.
H
TEMP.
ON / OFF
FAN
TIMER SET
SWING/FIXTIME
FILTER
UNITSET CL
TEST
RESET
CODE No.
MODE
VENT
r Parts to be procured locall y
Connecting pipe (Liquid side)
(6.4mm (diam.), Nominal (diam.) 1/4” thick 0.8mm)
Connecting pipe (Gas side)
(12.7mm (diam.), Nominal (diam.) 1/2” thick 0.8mm)
For sealing of wire connecting port
(Be sure to hand over to customers)
Usage
Model : RBC-AMT32E
Model : RBC-UM11PG(W)E
Thermal insulation for refrigerant pipe
(10mm or more, thermal insulating foam polyethylene)
Thermal insulation for drain pipe
(10mm or more, foam polyethylene)
En
Power supply cord (3 cores)
1.5mm² (H07RN-F or 245 IEC66)
Connecting wire (indoor and outdoor wire)
H07RN-F or 245 IEC66 (1.5mm² or more)
Drain pipe (VP25)
Tapes
2
English-2
1 PRECAUTIONS 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 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.
CAUTION
New Refrigerant Air Conditioner Installation
• THIS AIR CONDITIONER FEATURES A NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DEPLETE
OZONE LAYER.
The pressure of R410A is 1.6 times higher than that of former refrigerant R22.
The refrigerating oil has also been changed.
Therefore be sure that any former refrigerant, refrigerant oil or any other contaminants do not enter the refrigerating cycle of the air conditioner, during either installation or service work.
If incorrect tools or operating procedures are used, there is a possibility of a serious accident. Use only tools and
materials that have been designed to operate with R410A.
To prevent the risk of charging with an incorrect refrigerant, the dimensions of the charging por t connections are
different to those used for conventional refrigerant.
Therefore only tools designed to operate with R410A can be used.
For connecting pipes, use piping specifically designed for R410A.
During installation, ensure pipes are clean and ensure contaminants do not enter the pipes as the system is
affected by impurities such as water, oxide scales, dirt, oil, etc.
Do not use existing pipe work from previous installation as this will cause problems due to pressure resistances
and impurities within the pipe.
CAUTION
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 must be used for the power supply line of this air conditioner.
WARNING
• Ask an authorized dealer or qualified installation professional to install/maintain the air conditioner.
Inappropriate installation may result in water leakage, electric shock or fire.
• Turn off the main power supply switch or breaker before attempting any electrical work.
Make sure all power switches are off. Failure to do so may cause an electric shock.
• Connect all of the installation wiring correctly.
If the installation wiring is incorrect electrical par ts may be damaged.
• During the transportation and installation of the air conditioning unit, ensure that gaseous matter other
than the specified refrigerant does not enter into the refrigeration cycle.
If a refrigerant becomes contaminated with foreign gases, the gas pressure within the refrigerant cycle will
become abnormally high and may result in the fracture of pipe work and possible human injury.
• Do not modify this unit by removing any of the safety guards or by overriding any of the safety interlock
switches.
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3
• Exposure of the unit to water or other forms of moisture before installation may cause a short-circuit of
the electrical parts.
Do not store it in a wet basement or expose to rain or water.
• After unpacking the unit, examine for possible damage.
• Do not install in a place that might increase the vibration of the unit.
• To avoid personal injury (with sharp edges), be careful when handling parts.
• Perform installation work properly according to the Installation Manual.
Inappropriate installation may result in water leakage, electric shock or fire.
• When the air conditioner is installed in a small room, provide appropriate measures to ensure that in the
event of a refrigerant leak the rooms does not exceed the critical level.
• Install the air conditioner securely in a location where the base can sustain the weight of the unit adequately.
• Perform the specified installation work to guard against an earthquake.
If the air conditioner is not installed appropriately, accidents may occur due to the unit falling.
• If refrigerant gas has leaked during the installation work, ventilate the room immediately.
If the leaked refrigerant gas comes in contact with fire, noxious gases may be generated.
• 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 gases may
be generated.
• Electrical work must be performed by a qualified electrician in accordance with the Installation Manual.
Ensure the power supply to the air conditioner is exclusive to that unit only.
An insufficient power supply capacity or inappropriate installation may cause fire.
• Use only the specified wiring during the unit installation. Ensure that all terminals are securely fixed, so
preventing any external forces having a negative effect on the terminals.
• Conform to the regulations of the local electric authority when wiring the power supply.
Inappropriate grounding may cause an electric shock.
• Do not install the air conditioner in a location that may be subjected to a risk of exposure to a combustible gas.
If a combustible gas leaks and becomes concentrated around the unit, a fire may occur.
4
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2 SELECTION OF INSTALLATION PLACE
WARNING
• The air conditioner must be installed in a location that can support the weight of the unit effectively.
If the unit is not installed on a foundation that can support its weight effectively, the unit may fall down, resulting
in possible human injury.
• Where required ensure that the units installation is sufficient enough to withstand against an earthquake.
An insufficient installation could result in the unit falling, causing possible human injury.
• Install the air conditioner at a minimum height of 2.5 m from the floor.
Do not insert your hands or others into the unit while the air conditioner is operating.
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.
• Place exposed to air with high salt content (seaside area), or place exposed to large quantities of sulfide gas
(hot spring). (If the unit should be used in these places, special protective measures are necessary.)
• Place exposed to oil, vapor, oil smoke or corrosive gas.
• Place where organic solvent is used nearby.
• Place close to a machine generating high frequency.
• Place where the discharged air blows directly into the window of the neighboring house. (For outdoor unit)
• Place where noise of the outdoor unit is easily transmitted.
(When installing the air conditioner on the boundary with the neighbor, pay due attention to the level of noise.)
• Place with poor ventilation.
(Before air ducting work, check whether value of air volume, static pressure and duct resistance are correct or not.)
Installation space
Secure the specified space in the figure for installation and servicing.
Ensure there is sufficient space to install the unit and to perform maintenance work as and when required.
Keep 15mm or more for clearance between top plate of the indoor unit and the ceiling surface.
Installation space
English-5
1000
or more
283
or more
15 or more
1000 or more
Obstacle
1000 or more
283
or more
15 or more
5
Selection of installation place
In case of continued operation of the indoor unit
under high-humidity conditions as described below,
dew may condense and water may drop.
Especially, high-humidity atmosphere (dew point
temperature : 23°C or more) may generate dew
inside the ceiling.
1. Unit is installed inside the ceiling with slated roof.
2. Unit is installed at a location using inside of the
ceiling as fresh air take-in path.
3. Kitchen
If installing a unit at such place, put insulating material (glass wool, etc.) additionally on all the positions
of the indoor unit which come to contact with highhumidity atmosphere.
Advice
Set a service check opening panel at right side of the
unit (size: 450 × 450mm or more) for piping, maintenance, and servicing.
Ceiling height
Possible installed ceiling height
Up to 3.5 m
When the height of the ceiling exceeds the distance
of the item Standard/4-way in Table below, the hot air
is difficult to reach the floor. Therefore, it is necessary
to change the setup value of the high ceiling switch or
discharge direction.
REQUIREMENT
• When using the high ceiling (1) or (3) with 4-way
discharge system, the draft is apt to be felt due to
drop of the discharge temperature.
WARNING
Install the air conditioner certainly at a place where
sufficiently withstands the weight.
If the strength is insufficient, the unit may fall down
resulting in human injury.
Perform a specified installation work to guard against
an earthquake.
An incomplete installation can cause accidents by the
units falling and dropping.
In case of wireless type
The wireless remote controller can be operated up to
a maximum of 7 m from the infra-red receiver.
Therefore ensure that the remote controller will be
mounted and used within this stated parameter.
• To prevent malfunction do not mount or operate in a
location that is subjected to either a fluorescent
lamp or direct sunlight.
• A maximum of 6 indoor units with wireless remote
control can be installed within the same room.
Height list of ceiling possible to be installed
No. of discharge direction
Model RAV-
Standard (at shipment)
High ceiling (1)
High ceiling (3)
4-way 3-way 2-way
40, 45 56 ——
2.9 3.2 ——
3.2 3.4 ——
3.5 3.5 ——
7 m or less
(Unit : m)
High ceiling setup
Set data
0000
0001
0003
6
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3 INSTALLATION OF INDOOR UNIT
WARNING
The installation of the air conditioning unit must be positioned in a location that can sufficiently support its weight
and give protection against adverse environmental conditions.
Failure to do so may result in unit damage and possible human injury.
Any incomplete installation may also cause possible risk of human injury.
• Unpack the package, take out the product and then place it on the floor so that the same surface directs underneath as it is placed in the package.
• Never put the products taken out from the packing box in a pile, or put other load on them; otherwise there is a
possibility to damage electric parts, fan parts, draining mechanism, and etc.
If the both sides are turned over, a deformation of mounting metal of the ceiling panel which is sold separately,
etc. may be caused.
Accordingly the product may be damaged and the installation becomes impossible in some cases.
OK NO GOOD
REQUIREMENT
Strictly comply to the following rules to prevent damage of the indoor units and human injury.
• Do not place heavy objects on the indoor unit. (Even when units are still packaged)
• Always carry the unit as packaged from the factory wherever possible.
If carrying in the indoor unit unpacked by necessity, be sure to use buffering cloth, etc. to prevent damaging the unit.
• To move the indoor unit, hold the hanging brackets (4 positions) only.
Do not apply force to other parts (refrigerant pipe, drain pan, foamed parts, or resin parts etc.).
• To be carried by two or more persons. Do not strap the unit in positions other than that stated.
CAUTION
Never tear off the tape adhered to the cabinet;
otherwise vibration is caused from the cabinet.
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Dimensional view
200
1000 or more
15 or more15 or more
1000 or more
Obstacle
1000 or more
Space required for
installation and servicing
149
175
207
64
Knockout for flesh
145.5
93
105
air intake Ø100
Bottom face
of ceiling
70
595 to 660 Ceiling open dimension
142 64
29
700 Panel external dimension
595 to 660 Ceiling open dimension
525 Hanging bolt pitch
368.5
Check port
( 450)
Check port
( 450)
200
Check port
( 450)
Drain-up standing-up size
Indoor unit
627.5
or less
Stand-up
Bottom face
of ceiling
Stand-up
850 or less
Note)
595 to 660 Ceiling open dimension
As ABS is used for the drain discharge port of the main unit,
the vinyl chloride paste cannot be used.
Use the flexible hose (Band fix) included in the package.
4
2.7
• Wired remote
controller
120
(RBC-AMT32E)
120
268 27
220.5
Drain discharge port
Hanging bolt
M10 or W3/8
local arrange
145.5
134
63
Bottom face
of ceiling
Ceiling panel
200
16
235
105235
Ø162
For branch duct knockout
square hole Ø150
Bottom face of ceiling
575 External unit dimension
Electric parts box
575 External unit dimension
320.5
8
Ø162
256
177
148
510 Hanging bolt pitch
700 Panel external dimension
595 to 660 Ceiling open dimension
Refrigerant pipe
(Liquid) Ø6.4
For branch duct
knockout square
hole Ø150
Refrigerant pipe
(Gas) Ø12.7
214 105
97.5 42
139.5
190.5
120
21
Wiring connection
port
55
9310570
142
158
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3 INSTALLATION OF INDOOR UNIT
Ceiling opening and installation of hanging bolts
• Evaluate and determine the piping and wiring requirements inside the ceiling prior to the hanging of the unit.
• After installation place of the indoor unit has been determined, create opening in ceiling and install the hanging bolts.
• For the ceiling opening size and pitch for hanging bolts refer to the dimensional drawing and the supplied
installation pattern.
• Once the ceiling void has been created, ensure that the drain pipe, refrigerant pipes, inter-connecting wires and
all control wires are in place prior to installing the actual indoor unit.
Please procure the hanging bolts and nuts
for installation of the indoor unit at local site.
Hanging bolt
Nut
How to use the supplied installation pattern
The installation pattern is enclosed within the packaging of the air conditioner.
Existing ceiling void
Use the pattern to determine the position and size of the opening and
location of the hanging bolts.
New ceiling void
Use the pattern to deter mine the position of the new ceiling opening.
Cut off slit section of the main unit of the installation pattern.
Cut off the outside of the pattern according to size of the ceiling opening.
(There is a slit on the standard opening size section.)
• Install the indoor unit after installation of the hanging bolts.
• Using the supplied pattern attach it to the indoor unit using the
supplied fixing screws (M5 × 16L 4 pcs.).
(Screw pattern to the ceiling panel hanging brackets of the indoor unit)
• When creating the opening ensure it is as per the outer dimensions of
the supplied pattern.
M10 or W3/8
M10 or W3/8
Indoor unit
Installation pattern
(Attached)
M5 × 16L screws (Attached)
These screws are exclusive to the
installation pattern. When installing
the ceiling panel, the other exclusive
screws attached to the ceiling panel
(sold separately) are used.
4 pieces
12 pieces
Cut off the installation
pattern along slit of
the main unit.
Opening a ceiling and installation of hanging bolts
Treatment of ceiling
The ceiling differs according to the structure of the building. For details, consult your architect.
In the process after the ceiling panels have been removed, it is important to reinforce the ceiling construction and
ensure the ceiling remains in a horizontal position. This is to prevent possible vibration of the ceiling panels.
1. Cut and remove the ceiling material.
2. Reinforce the cut surface of the ceiling construction and add support for fixing the end of ceiling panel.
Installation of hanging bolt
Use M10 hanging bolts (4 pcs. locally procured).
When mounting the unit, set the pitch of the hanging bolts according to the size of the unit as detailed on the
dimensional drawing.
New concrete slab
Install the bolts with insert brackets or anchor
bolts.
Reinforcing
steel
(Blade type
bracket)
(Slide type
bracket)
Anchor bolt
(Pipe hanging
anchor bolt)
Steel flame structure
Use existing angles or install new
support angles.
Hanging bolt
Hanging bolt Support angle
Existing concrete slab
Use a hole-in anchors, hole-in
plugs, or a hole-in bolts.
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