Carrier RAV-AT-CT Owner's Manual
AIR CONDITIONER (SPLIT TYPE)
Owner’s Manual
Indoor Unit
Model name:
Under Ceiling Type
RAV-SP180CT-UL
RAV-SP240CT-UL
RAV-SP300CT-UL
RAV-SP360CT-UL
RAV-SP420CT-UL
Owner’s Manual
Air conditioner
Manuel du proprietaire
Climatiseur
(Split type) 1
(Type split) 23
English
Français
Under Ceiling
Thank you very much for purchasing TOSHIBA/Carrier Air Conditioner.
Please read this owner’s manual carefully before using your Air Conditioner.
• Be sure to obtain the “Owner’s manual” and “Installation manual” from the contractor or dealer.
Request to contractor or dealer
• Please clearly explain the contents of the Owner’s manual and hand over it.
Owner’s Manual
ADOPTION OF NEW REFRIGERANT
This Air Conditioner uses R410A an environmentally friendly refrigerant.
Contents
1. PRECAUTIONS FOR SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. SYSTEM CHARACTERISTICS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. ENERGY SAVING RECOMMENDATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4. PART NAMES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5. WIRED REMOTE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6. CORRECT USAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7. TIMER OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8. LOUVER DIRECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
9. POWER SAVING MODE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
10.MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
11.INFORMATION FOR INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
12.TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1-EN
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1. PRECAUTIONS FOR SAFETY
WARNING
WARNINGS ABOUT INSTALLATION
• Make sure to ask the qualified installation professional in electric work to install
the air conditioner.
If the air conditioner is inappropriate installed by yourself, it may cause water
leak, electric shock, fire, and so on.
• Be sure to connect ground wire. (grounding work)
Incomplete grounding cause an electric shock.
Do not connect ground wires to gas pipes, water pipes, lightning rods or ground
wires for telephone wires.
• If you install the indoor unit in a small room, take appropriate measures to
prevent the refrigerant from exceeding the limit concentration even if it leaks.
Consult the dealer from whom you purchased the air conditioner when you
implement the measures. Accumulation of highly-concentrated refrigerant may
cause an oxygen deficiency accident.
• Check whether the piping work has been properly completed.
When existing pipes are used and if they are not constructed properly, the
refrigerant gas may leak. Contact the installation company and confirm that the
piping work has been properly completed. For details of installation of the air
conditioner, refer to the Installation Manual. Use tools and piping materials for
R410 only. Failure to do so or improper installation may cause a burst of pipe,
resulting in injury.
Owner’s Manual
WARNINGS ABOUT OPERATION
• Cleaning of the air filter and other parts of the air filter involves dangerous work in
high places, so be sure to have a service person do it.
The self cleaning function of the air conditioner causes the internal fan to run at a high speed in some modes even while
the air conditioner is not working, which may cause injury.
Do not attempt it yourself.
• Avoid cooling the room too strong or exposing the human body to cool breeze for a long time as it is bad for the health.
• When you notice something abnormal with the air conditioner (smells like something scorching, poor cooling, etc.),
immediately turn off the main switch and the circuit breaker, from the mains to stop the air conditioner, and contact
the dealer.
If the air conditioner is continuously operated with something abnormal, it may cause machine failure, electric shock,
fire, and so on.
WARNINGS ABOUT MOVEMENT AND REPAIR
• 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 refill 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 fire, it may generate toxic gas.
When you ask service personnel for repairing refrigerant leakage, confirm that the leakage portion has been
completely repaired.
• Do not move or repair any unit by yourself.
Since there is high voltage inside the unit, you may get electric shock when removing the cover and main unit.
• Whenever the air conditioner needs repair, make sure to ask the dealer to do it.
If it is repaired imperfectly, it may cause electric shock or fire.
• When moving the air conditioner for re-installing at another place, ask the dealer to do it. If it is imperfectly installed,
it may cause electric shock or fire.
EN
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2-EN
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CAUTION
CAUTIONS ABOUT INSTALLATION (Be sure to confirm the following cautions.)
• Use an exclusive power circuit for the air conditioner. Use the rated voltage.
• Certainly lay the drain hose for perfect draining.
Bad drainage may cause flooding in the house and getting furniture wet.
• Make sure to connect the air conditioner to an exclusive power supply of the rated
voltage, otherwise the unit may break down or cause a fire.
• Do not install the unit in a place where inflammable gas may leak.
If inflammable gas accumulates around the unit, it may cause a fire.
CAUTIONS ABOUT OPERATION
• Carefully read this manual before starting the air conditioner.
There are many important things to keep in mind for daily operation.
• Do not use this air conditioner for special purpose such as preserving food, precision
instruments, art objects, breeding animals, car, vessel, etc.
Owner’s Manual
• When the air conditioner is operated with a combustion appliance in the same place, be
careful of ventilation to let fresh air enter the room.
Poor ventilation causes oxygen shortage.
• 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.
• When the air conditioner is used in a closed room, be careful of sufficient ventilation of the room.
Poor ventilation causes oxygen shortage.
• Do not touch any switches with wet fingers. You may get an electric shock.
• If the air conditioner won’t be used for a long time, turn off the main switch or the circuit breaker, for safety.
• Do not put anything on the outdoor unit or step on it.
If you do, the unit may topple over or you may get injured.
• To make the air conditioner operate in its original performance, operate it within the range of the operating
temperature specified in the instructions.
Otherwise it may cause a malfunction, or water leak from the unit.
• Do not expose the remote control to any liquid.
3-EN
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Owner’s Manual
2. SYSTEM CHARACTERISTICS
Air conditioner operating conditions
For proper performance, operate the air conditioner under the following temperature conditions:
Outdoor temperature : 23 °F to 109.4 °F (-5 °C to 43 °C) *
Cooling operation
Dry operation
Heating operation
*: The air conditioner can be operate when outside temperature is 5°F to 23°F (-15°C to -5°C). Installing wind
baffle to the outdoor unit is necessary to operate the air conditioner in that outside temperature range.
For further details, refer to the installation manual of the outdoor unit.
If air conditioner is used outside of the above conditions, safety protection may work.
Room temperature :
[CAUTION]
Outdoor temperature : 59 °F to 109.4 °F (15 °C to 43 °C)
Room temperature : 62.6 °F to 89.6 °F (17 °C to 32 °C)
Outdoor temperature :
Room temperature : 59 °F to 86 °F (15 °C to 30 °C) (Dry bulb temperature)
Room relative humidity – less than 80 %. If the air conditioner operates in excess of
this figure, condensation may occurs on the surface of the air conditioner.
69.8 °F to 89.6 °F (21 °C to 32 °C) (Dry bulb temperature),
59 °F to 75.2 °F (15 °C to 24 °C) (Wet bulb temperature)
-4 °F to 59 °F (-20 °C to 15 °C) (Wet bulb temperature)
3 minute protection function
There is a 3-minute time delay between compressor starts.
Auto restart
The unit will stop after a power failure.
• The unit will restart automatically in the same operating mode as before the power failure when the power is
restored.
Fan operation
Heating
• When there is a call for heating, the fan will not start right away. There is a delay of approximately 5 minutes to
ensure that the indoor heat exchanger warmed up.
• When the room temperature reaches the set temperature, the fan will run at ultra low speed to avoid blowing cold
air on the occupants in the space.
Cooling
When the room temperature reaches the set temperature, the fan will run at ultra low speed.
Defrost
When the unit is operating in the heating mode frost forms on the outdoor heat exchanger.
When this occurs, defrost is initiated automatically. During the defrost period (2 to 10 minutes) both the indoor and
outdoor units stop running.
• A hissing noise might be heard when the defrost cycle is initiated.
• During the defrosting operation, the defrosted water will be drained from the bottom plate of the outdoor unit.
Heating capacity
In the heating operation, the heat is absorbed from the outside and brought into the room. This way of heating is
called heat pump system. When the outside temperature is too low, it is recommended to use another heating
apparatus in combination with the air conditioner.
Attention to snowfall and freeze on the outdoor unit
• In snowy areas, the air inlet and air outlet of the outdoor unit are often covered with snow or frozen up.
If snow or freeze on the outdoor unit is left as it is, it may cause machine failure or poor warming.
• In cold areas, pay attention to the drain hose so that it perfectly drains water without water remaining inside for
freeze prevention. If water freezes in the drain hose or inside the outdoor unit, it may cause machine failure or
poor warming.
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EN
4-EN
Under Ceiling
Owner’s Manual
3. ENERGY SAVING RECOMMENDATIONS
Select a comfortable set point and minimize adjusting it.
• Clean the filter when ever the filter display is illuminated on remote
control.
• Keep doors and windows closed and open them only when necessary.
• Use drapes, curtains, or shades to keep direct sun light from heating the
room on very hot days.
• Do not obstruct the return air grille.
• Adjust the air flow direction for even air distribution in the room.
Checks before operating
• Check whether the ground wires are properly connected.
• Check whether the air filters are installed.
• Turn on the circuit breaker the initial startup or after an extended shut
down.
Clean,please.
e
s
o
l
c
e
s
a
e
l
P
Blows upward
Cool and dry air
Air flow
adjustment
Warm air
Blows downward
5-EN
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4. PART NAMES
Indoor unit
Owner’s Manual
Part sold separetely
Remote control
Button
Button to open/close the
suction port
Air filter
Removes dust or trash.
(Provided on the suction port.)
Outdoor unit
Air intake (Side and rear)
TIMER SET
FAN
TIME
FILTER
RESET
TEST
SAVE
SET
CL
SWING/FIX
UNIT LOUVER
Return air grill
Discharge louver
Controls discharge air
directions
MODE
VENT
Mounting leg
* The image of the outdoor unit in the figure is in the case Model RAV-SP420AT2-UL.
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Front panel
There is a ground screw, valves
and electric parts inside.
Air Discharge
Pipe cover
Conduit connection holes
EN
6-EN
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5. WIRED REMOTE CONTROL
This remote control can control the operation of up to 8 indoor units.
The remote control has two sections: The display section and the operation section.
Display section
Owner’s Manual
In the display below all the icons are shown. When the unit is in operation,
only relevant icons will be displayed.
• When the circuit breaker is turned on the first time, flashes on the
display part of the remote control.
• While this display is flashing, the model is being automatically confirmed.
Wait till display has disappeared to use the remote control.
8
1
7
9
15
2
3
17
4
5
6
18
14
16
FILTER
RESET
TEMP.
TEST
TIMER SET
TIME
SET
CL
Pertition line
ON / OFF
FAN
MODE
SAVE
VENT
SWING/FIX
UNIT LOUVER
10
11
12
Display
section
Operation
section
1 SETTING display
Displayed during setup of the timer etc..
2 Operation mode
The selected operation mode is displayed.
3 Error display
Displayed while the protective device works or a
error occurs.
4 Timer display
When a malfunction occurs, an error code is
displayed.
5 Timer Mode display
Displays the timer mode.
6 Filter display
, reminder to clean the air filter.
13
7 TEST run display
Displayed during a test run.
8 Louver position display
Displays louver position.
9 Swing display
Displayed during up/down movement of the
louver.
10
Set temperature display
The selected set temp. is displayed.
11
Remote control sensor display
Displayed while the sensor of the remote control is
used.
7-EN
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