Toshiba RAV-SP302AT2P-UL User manual

English
AIR CONDITIONER (SPLIT TYPE)
Installation Manual
Outdoor Unit
Model name:
<Heat Pump Model>
RAV-SP302AT2P-UL
RAV-SP362AT2P-UL
RAV-SP422AT2P-UL
RAV-SP482AT2P-UL
For commercial use
Pour usage commercial
Para uso comercial
1131501101
Installation Manual 1
1131501101-00_S01_297x210_60p_S_p70_220425.indd 1 25/4/2565 15:23:30

– 1 –
Original instruction
Please read this Installation Manual carefully before installing the Air Conditioner.
• This Manual describes the installation method of the outdoor unit.
• For installation of the indoor unit, refer the Installation Manual attached to the indoor unit.
ADOPTION OF NEW REFRIGERANT
This Air Conditioner uses R410A an environmentally friendly refrigerant.
Contents
1 Precautions for safety ................................................................................................... 3
2 Accessory parts ............................................................................................................ 6
3 Installation of new refrigerant air conditioner ............................................................. 6
4 Installation conditions ................................................................................................... 7
5 Refrigerant piping ........................................................................................................ 10
6 Vacuum .......................................................................................................................... 11
7 Electrical work .............................................................................................................. 12
8 Grounding ..................................................................................................................... 14
9 Finishing ...................................................................................................................... 14
10 Test run .......................................................................................................................... 14
11 Annual maintenance .................................................................................................... 14
12 Functions to be implemented locally ......................................................................... 14
13 Troubleshooting ........................................................................................................... 17
14 Appendix ....................................................................................................................... 17
 15Specications...............................................................................................................18
1-EN 2-EN
1131501101-00_S01_297x210_60p_S_p70_220425.indd 1 25/4/2565 15:23:30

– 2 –
Thank you for purchasing this Toshiba Carrier air conditioner.
Please read carefully through these instructions that contain important information and ensure that you
understand them.
After reading these instructions, be sure to keep them in a safe place together with the Owner’s Manual and
Installation Manual supplied with your product.
Generic Denomination: Air Conditioner
DenitionofQualiedInstallerorQualiedServicePerson
The air conditioner must be installed, maintained, repaired and removed by a qualied installer or qualied service
person.
When any of these jobs is to be done, ask a qualied installer or qualied service person to do them for you.
A qualied installer or qualied service person is an agent who has the qualications and knowledge described in
the table below.
Agent Qualicationsandknowledgewhichtheagentmusthave
Qualied
installer
• The qualied installer is a person who installs, maintains, relocates and removes the air conditioners
made by Manufacturer. He or she has been trained to install, maintain, relocate and remove the
air conditioners made by Manufacturer 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 qualied installer who is allowed to do the electrical work involved in installation, relocation
and removal has the qualications 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 Manufacturer 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 qualied installer who is allowed to do the refrigerant handling and piping work involved in
installation, relocation and removal has the qualications 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 Manufacturer 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 qualied installer who is allowed to work at heights has been trained in matters relating to
working at heights with the air conditioners made by Manufacturer 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.
Qualied service
person
• The qualied service person is a person who installs, repairs, maintains, relocates and removes
the air conditioners made by Manufacturer. He or she has been trained to install, repair, maintain,
relocate and remove the air conditioners made by Manufacturer 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 qualied service person who is allowed to do the electrical work involved in installation, repair,
relocation and removal has the qualications 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 Manufacturer 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 qualied service person who is allowed to do the refrigerant handling and piping work involved
in installation, repair, relocation and removal has the qualications 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 Manufacturer 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 qualied 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 Manufacturer 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.
Denition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wear
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
Centerofgravity
Unit : in (mm)
Center of gravity
Center of gravity
5.9” (150)
13.2” (335)
25.6” (650)
3-EN 4-EN
EN
1131501101-00_S01_297x210_60p_S_p70_220425.indd 2 25/4/2565 15:23:30

– 3 –
1Precautions for safety
Installing, starting up, and servicing air-conditioning equipment
can be hazardous due to system pressures, electrical components,
and equipment location (roofs, elevated structures, etc.).
Only trained, qualied installers and service mechanics should
install, start-up, and service this equipment.
Untrained personnel can perform basic maintenance functions
such as cleaning coils. All other operations should be performed
by trained service personnel.
When working on the equipment, observe precautions in the
literature and on tags, stickers, and labels attached to the
equipment.
Follow all safety codes. Wear safety glasses and work gloves.
Keep quenching cloth and re extinguisher nearby when brazing.
Use care in handling, rigging, and setting bulky equipment.
Read these instructions thoroughly and follow all warnings or
cautions included in literature and attached to the unit. Consult
local building codes and National Electrical Code (NEC) for
special requirements. Recognize safety information. This is the
safety-alert symbol . When you see this symbol on the unit
and in instructions or manuals, be alert to the potential for personal
injury. Understand these signal words: DANGER, WARNING, and
CAUTION. These words are used with the safety-alert symbol.
DANGER identies the most serious hazards which will result in
severe personal injury or death. WARNING signies hazards
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which may result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability,
or operation.
5-EN 6-EN
Warning indications on the air conditioner unit
Warning indication Description
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.
WARNING
Capacitor connected within
this disconnect or
downstream upon shutdown
wait 5 minutes to allow
capacitors to discharge
WARNING
Capacitor connected within this disconnect or downstream
upon shutdown wait 5 minutes to allow capacitors to
discharge.
1131501101-00_S01_297x210_60p_S_p70_220425.indd 3 25/4/2565 15:23:30

– 4 –
WARNING
• Askanauthorizeddealerorqualiedinstallation
professional to install/maintain the air conditioner.
Perform installation work properly according to the
Installation Manual.
Inappropriate installation may result in water leakage, electric
shock or re.
• Be sure to ground the equipment
Improper grounding may cause an electric shock.
Do not connect ground wires to gas pipes, water pipes, lightning
rods or ground wires for telephone wires.
• Turno󰀨thecircuitbreakerbeforeattemptinganyelectrical
work and maintenance.
Make sure the circuit breaker is o󰀨. Failure to do so may cause
electric shock.
Use an exclusive power circuit for the air conditioner. Use the
rated voltage.
• Whenmovingtheairconditionerforinstallationtoanother
  place,beverycarefulnottoallowthespeciedrefrigerant
(R410A) to become mixed with any other gaseous body
into the refrigeration cycle.
If air or any other gas mixes with the refrigerant, the gas
pressure in the refrigeration cycle will become abnormally high
and it may result in the pipe bursting or personal injuries.
• Donotmodifythisunitbyremovinganyofthesafetyguards
or by by-passing any of the safety interlock switches.
• Donottouchtheintakeoraluminiumnsofthe
outdoor unit.
Doing so may result in injury.
• Tightenthearenutwithatorquewrenchinthespecied
manner.
Excessive tightening of the are nut may cause a crack in the
are nut after a long period, which may result in refrigerant
leakage.
• Install the air conditioner securely in a location where the
base can sustain the weight of the unit adequately.
• If refrigerant gas has leaked during the installation work,
  ventilatetheroomimmediately.
If the leaked refrigerant gas comes in contact with re, noxious
gas may be generated.
• Aftertheinstallationwork,conrmthatrefrigerantgasdoes
not leak.
If refrigerant gas leaks into the room and ows near a re source,
such as a cooking range, noxious gas may be generated.
• Electricalworkmustbeperformedbyaqualiedelectrician
in accordance with the NEC or local code. Make sure the air
  conditionerusesanexclusivepowersupply.
An insu󰀩cient power supply capacity or inappropriate installation
may cause re.
• Useonlythespeciedwiringduringtheunitinstallation.
  Ensurethatallterminalsaresecurelyxed,sopreventing
  anyexternalforceshavinganegativee󰀨ectonthe
terminals.
7-EN 8-EN
EN
1131501101-00_S01_297x210_60p_S_p70_220425.indd 4 25/4/2565 15:23:30

– 5 –
WARNING
• When the air conditioner cannot cool or heat a room well,
contact the dealer from whom you purchased the air
conditioner as refrigerant leakage is considered as the
cause.
  Inthecaseofrepairthatrequiresrellofrefrigerant,ask
  servicepersonnelaboutdetailsoftherepair.
The refrigerant used in the air conditioner is harmless.
Generally, the refrigerant does not leak. However, if the
refrigerant leaks in a room and a heater or stove burner in the
room catches re, it may generate toxic gas.
When you ask service personnel for repairing refrigerant
leakage, conrm that the leakage portion has been completely
repaired.
• 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 re may occur.
• 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
the refrigerant pipe, the compressor sucks air and the
refrigeration cycle is over pressurized, which may cause a burst
or injury.
• When 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 with the compressor still operating will cause air, etc.
to be sucked in, raising the pressure inside the refrigeration
cycle to an abnormally high level, and possibly resulting in
rupturing, injury, etc.
WARNING
• After installation work, make sure below before operation.
- Connection pipes are connected properly and no leakage.
 -Packedvalvesarefullyopen.
Running compressor without open packed valves may cause
abnormal high pressure and parts failure.
Leakage at connection piping may suck air and make further
high pressure cause burst and injure.
CAUTION
• Do not climb onto or place objects on top of the outdoor unit.
You may fall or the objects may fall o󰀨 of the outdoor unit and
result in injury.
• Wearheavyglovesduringtheinstallationworktoavoid
injury.
EQUIPMENTDAMAGEHAZARD
Failure to follow this caution may result in equipment damage or
improper operation.
Do not bury more than 36 in. (914 mm) of refrigerant pipe in the
ground. If any section of pipe is buried, there must be a 6 in.
(152 mm) vertical rise to the valve connections on the outdoor units.
If more than the recommended length is buried, refrigerant may
migrate to the cooler buried section during extended periods of
system shutdown. This causes refrigerant slugging and could
possibly damage the compressor at start-up.
9-EN 10-EN
1131501101-00_S01_297x210_60p_S_p70_220425.indd 5 25/4/2565 15:23:30

– 6 –
2Accessory parts
Part name Q’ty Shape Usage
Installation Manual 1 Booklet Hand this directly to the customer.
Drain connector 1
Waterproof rubber cap 5
Guard material for passage
part 1 For protecting passage part (pipe cover)
3Installation of new refrigerant air conditioner
CAUTION
New refrigerant air conditioner installation
• This air conditioner adopts the new HFC refrigerant (R410A) which does not destroy ozone layer.
R410A refrigerant is apt to be a󰀨ected by impurities such as water, oxidizing membrane, and oils because the
working pressure of R410A refrigerant is approx. 1.6 times as that of refrigerant R22. Accompanied with the
adoption of the new refrigerant, the refrigerant oil has also been changed. Therefore, during installation work,
be sure that water, dust, former refrigerant, or refrigerant oil does not enter the new type refrigerant R410A
air conditioner cycle.
To prevent mixing of refrigerant or refrigerant oil, the sizes of connecting sections of charging port on main unit
and installation tools are di󰀨erent from those of the conventional refrigerant units. Accordingly, special tools are
required for the new refrigerant (R410A) units. For connecting pipes, use new and clean piping materials with high
pressure ttings made for R410A only, so that water and/or dust does not enter.
Required Tools/Equipment and precautions for use
Prepare the tools and equipment listed in the following table before starting the installation work.
Legend
: R410A exclusive
: Generic
Tools/equipment Use
Manifold gauge Vacuuming/charging
refrigerant and operation check
Charging hose
Gas leak detector Gas leak check
Vacuum pump with backow
prevention function Vacuum drying
Flare tool Flare machining of pipes Usable if dimensions are adjusted.
Bender Bending pipes
Refrigerant recovery equipment Refrigerant recovery
Torque wrench Tightening are nuts Ø1/2” (12.7 mm) and Ø5/8” (15.9 mm)
Pipe cutter Cutting pipes
Brazing torch and nitrogen
cylinder Braze pipes
Refrigerant charging scales Charging refrigerant
4 mm hexagon wrench Opening liquid valve
11-EN 12-EN
EN
1131501101-00_S01_297x210_60p_S_p70_220425.indd 6 25/4/2565 15:23:30

– 7 –
4Installation conditions
Before installation
Be sure to prepare to the following items before
installation.
Length of refrigerant pipe
Model
Length of
refrigerant pipe
connected to
indoor / outdoor
unit
Item
SP302
SP362
SP422
SP482
16’5” to 164’1”
(5 to 50 m)
Addition of refrigerant
at the local site is
unnecessary for
refrigerant pipe length
up to 98’5” (30 m).
If the refrigerant pipe
length exceeds
98’5” (30 m).
Add refrigerant in
the amount given in
“Charging additional
refrigerant”
* Caution during addition of refrigerant.
When the total length of refrigerant piping exceeds
98’5”(30 m.), add 40 g/m of refrigerant up to a
maximum total length of piping at 164’1”(50 m.).
(Max. amount of additional refrigerant is 800 g.)
Charge the refrigerant accurately. Overcharging may
cause serious trouble with the compressor.
• Do not connect a refrigerant pipe that is shorter than
16’5”(5m).
This may cause a malfunction of the compressor or
other devices.
Leakage test
1. Before starting an leakage test, further tighten the
spindle valves on the gas and liquid sides.
2. Pressurize the pipe with nitrogen gas charged from
the service port to the design pressure (4.15 MPa)
to conduct an leakage test.
3. After the leakage test is completed, evacuate the
nitrogen gas.
Evacuation
• To evacuate system, use a vacuum pump.
• Do not use refrigerant charged in the outdoor unit
for evacuation.
Electrical wiring
• Be sure to x the power wires and system
interconnection wires with clamps so that they do
not come into contact with the cabinet, etc.
Grounding
WARNING
 Makesurethatpropergroundingisprovided.
Improper grounding may cause an electric shock.
For details on how to check grounding, contact the
dealer who installed the air conditioner or a
professional installation company.
• Proper grounding can prevent charging of electricity
on the outdoor unit surface due to the presence of a
high frequency in the frequency converter (inverter)
of the outdoor unit, as well as prevent electric shock.
If the outdoor unit is not properly earthed, you may
be exposed to an electric shock.
• Be sure to connect the earth wire. (grounding
work)
Incomplete grounding can cause an electric shock.
Do not connect ground wires to gas pipes, water
pipes, lightning rods or ground wires for telephone
wires.
Test run
Turn on the leakage breaker at least 12 hours before
starting a test run to protect the compressor during
startup.
CAUTION
Incorrect installation work may result in a malfunction
or complaints from customers.
Installation Location
WARNING
Install the outdoor unit in a location that can
support the weight of the outdoor unit.
Insu󰀩cient durability may cause the outdoor unit to
fall, which may result in injury.
CAUTION
Do not install the outdoor unit in a location that
is subject to combustible gas leaks.
Accumulation of combustible gas around the outdoor
unit may cause a re.
Install the outdoor unit in a location that meets
the following conditions.
• A well-ventilated location free from obstacles near
the air inlets and air outlet
• A location that does not increase the operating
noise or vibration of the outdoor unit
• A location that does not produce any drainage
problems from discharged water
• Location with easy access to power.
Do not install the outdoor unit in the following
location.
• A location with a saline atmosphere (coastal area)
or one that is full of sulde gas (hot-spring area)
(Special maintenance is required.)
• A location subject to oil, vapor, oily smoke, or
corrosive gases
• A location in which organic solvent is used
• A location where high-frequency equipment
(including inverter equipment, private power
generator, medical equipment, and communication
equipment) is used (Installation in such a location
may cause malfunction of the air conditioner,
abnormal control or problems due to noise from
such equipment.)
• A location in which the discharged air of the
outdoor unit blows against the window of a
neighboring house
• A location where the operating noise of the
outdoor unit is transmitted
• When the outdoor unit is installed in an elevated
position, be sure to secure its feet.
• A location in which drain water poses any problems.
When an outdoor unit is installed in a location that
is always exposed to strong winds like a coast or
on the high stories of a building, one of the following
is recommended.
• Install the unit so that its discharge faces the wall of
the structure.
Keep a distance 19.7” (500 mm) or more between
the unit and wall.
19.7” (500 mm)
• Install the unit so that the discharge is at a right
angle relative to the wind direction.
Strong wind
Strong wind
• Use wind ba󰀪e. Produce those parts in the eld.
• When outside temperature conditions are 23 °F
(-5°C) or lower and unit is running in cooling mode.
<Example>
Wind ba󰀪e Wind ba󰀪e
Wind ba󰀪e
13-EN 14-EN
1131501101-00_S01_297x210_60p_S_p70_220425.indd 7 25/4/2565 15:23:30

– 8 –
Necessary space for installation (Unit: in (mm))
Single unit installation
When there is an obstacle on the
back side
(Front, sides, and top are free)
5.9” (150)
or more
When there are obstacles on the
top and front sides
(Back and sides are free)
39.4” (1000)
or more
39.4” (1000)
or more
When there is an obstacle on the
front side
(Back, sides, and top are free)
19.7” (500)
or more
When there are obstacles on the
back and top sides
(Front and sides are free)
19.7” (500)
or more
5.9” (150)
or more
When there are obstacles on the
front and back sides
(Sides and top are free)
5.9” (150)
or more
39.4” (1000)
or more
When there are obstacles on the
back and sides
(Front and top are free)
* The height of the obstacle should
be lower than that of the outdoor
unit.
5.9” (150)
or more 11.8” (300)
or more
7.9” (200)
or more
Multiple unit installation
* When the outdoor temperature is high, the cooling capability may be decreased because of an equipment
protection operation.
When there is an obstacle on the
back side
(Front, sides, and top are free)
When there are obstacles on the
back and sides
(Front and top are free)
* The height of the obstacle should
be lower than that of the outdoor
unit.
Single unit multiple-row installation
(Top and both sides are free)
* The height of the obstacle should
be lower than that of the outdoor
unit.
Multiple unit multiple-row installation
(Top, both sides, and front are free)
When there are obstacles on the
front and back sides
(Sides and top are free)
When there are obstacles on the
back and top sides
(Front and sides are free)
When there is an obstacle on the
front side
(Back, sides, and top are free)
11.8” (300)
or more
5.9” (150)
or more
11.8” (300)
or more
11.8” (300)
or more
11.8” (300)
or more 11.8” (300)
or more 39.4” (1000)
or more
39.4” (1000)
or more
39.4” (1000)
or more 39.4” (1000)
or more
78.7” (2000)
or more
78.7” (2000) or more
11.8” (300)
or more
7.9” (200)
or more
7.9” (200)
or more
7.9” (200) or more
7.9” (200)
or more
19.7” (500) or more
11.8” (300)
or more 11.8” (300)
or more 11.8” (300)
or more
11.8” (300)
or more 11.8” (300)
or more
11.8” (300) or more
11.8” (300) or more
11.8” (300) or more
11.8” (300) or more
11.8” (300)
or more
11.8” (300)
or more
11.8” (300)
or more 11.8” (300)
or more
7.9” (200)
or more
59.1” (1500) or more
59.1” (1500) or more
15-EN 16-EN
EN
1131501101-00_S01_297x210_60p_S_p70_220425.indd 8 25/4/2565 15:23:31

– 9 –
Installation of outdoor unit
• Before installation, check the strength and horizontal
of the base so that abnormal sounds do not
emanate.
• According to the following base diagram, x the base
rmly with the anchor bolts.
(Anchor bolt, nut: 3/8” (M10) x 4 pairs)
Drain hole
Drain hole
Drain
connector mounting hole
1) Field fabricate a snow or an ice stand for the
unit using the above dimension.
2) Place snow or ice stand on a foundation/pad
and secure it to the foundation/pad and secure
it to the foundation/pad by anchor bolts.
NOTE
When the outdoor unit is anchored directly on
the foundation/pad (cooling only protrude a
minimum of 0.6” (15 mm)).
0.6” (15 mm) or less
For Reference
If a heating operation is to be continuously performed
for a long time under the condition that the outdoor
temperature is 32 °F (0 °C) or lower, draining defrosted
water may be di󰀩cult due to the bottom plate freezing,
resulting in trouble with the cabinet or fan.
3) Place unit on stand. Make sure it is level and
fasten securely to the stand.
• As shown in the gure below, install the
foundation and vibration-proof rubber pads to
directly support the bottom surface of the xing
leg that is in contact with the bottom plate of
the outdoor unit.
• When installing the foundation for an outdoor
unit with downward piping, consider the piping
work.
• When water is to be drained through the drain hose,
attach the following drain connector and waterproof
rubber cap, and use the drain hose (Inner diameter:
0.6” (16 mm)) eld supplied drain hose. Also seal
the screws securely with silicone material, etc., to
prevent water from leaking.
Some conditions may cause condensation or
dripping of water.
• When collectively draining discharged water
completely, use a drain pan.
Mounting leg
Foundation
Bottom plate
of outdoor unit
Foundation
Foundation
Support the bottom surface of the
mounting leg that is in contact with
and underneath the bottom plate of
the outdoor unit.
If only the end of the
mounting leg is
supported, it may
deform.
Do not support
the outdoor unit
only with the
mounting leg.
GOOD
NO GOOD
GOOD
Drain connector
Drain connector
Waterproof rubber cap
(5pcs.)
Waterproof rubber cap
17-EN 18-EN
1131501101-00_S01_297x210_60p_S_p70_220425.indd 9 25/4/2565 15:23:33