Toshiba RAV Heat User manual

FILE NO. A90-9714
AIR-CONDITIONER
RAV HEAT PUMP RANGE
Printed in UK Aug 1997 s
SERVICE MANUAL
INFRARED REMOTE CONTROL

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SUMMARY
• The infrared remote controller within this manual conforms with the protection requirements of European
Directives 89/336/EEC Electromagnetic Compatibility and 73/23/EEC Low Voltage.
CONTENTS
1. OPERATION DESCRIPTION...................................................................................................................................3
2. TROUBLESHOOTING...........................................................................................................................................12
3. CONSTRUCTION VIEWS AND PARTS LIST..........................................................................................................17
4. SPECIFICATIONS OF ELECTRICAL PARTS..........................................................................................................17

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ON/OFF Button
• Push this button to start operation.
(A receiving beep is heard)
• Push the button to stop operation.
(A receiving beep is heard)
Temperature button (TEMP)
The set temperature is
increased to a max 30ºC.
The set temperature is
decreased to a min of 17ºC.
Mode select button (MODE)
Push this button to select modes. Each
time you push the button, a mode is
selected in a sequence that goes from
AUTO, COOL, DRY,HEAT, FAN ONLY,
and back to AUTO. (A receiving beep is
heard).
Economy button (ECONO)
• Push this button to set the
economical operation mode of the
air conditioner.
(A receiving beep is heard)
1. OPERATION DESCRIPTION
1-1. REMOTE CONTROLLER
1-1-1. Remote Functions (Cover closed)

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Temperature button (TEMP)
The set temperature is
increased to a max 30ºC.
The set temperature is
decreased to a min of 17ºC.
Cover closed functions
• Push this button to show functions
as with the cover closed.
Function lock button (LOCK)
• Push this button to lock settings.
• Push this button again to cancel
lock function.
Infrared signal transmitter
Transmits the signal to the indoor unit
ON/OFF Button
• Push this button to start operation.
(A receiving beep is heard)
• Push the button to stop operation.
(A receiving beep is heard)
Fan speed button (FAN)
• Push this button to select fan speed.
• When you select AUTO, the fan
speed is automatically adjusted
according to the room temperature.
You can also manually select the
desired fan speed from the three
settings. Low, Med, High. (A receiving
beep is heard).
Auto louver button (AUTO)
• Push this button to operate the
louver.
(A receiving beep is heard).
• Push this button again to stop louver
operation.
(A receiving beep is heard).
Set louver button (SET)
• This button has no function on RAV
units.
Off timer button (OFF)
• Push this button to set the OFF
timer.
On timer button (ON)
• Push this button to set the ON timer.
Time adjust button
• Rotate this to increase/decrease
time settings.
Cancel button (CNL)
• Push this button to cancel timer
operation.
(A receiving beep is heard).
Reserve button (RSV)
• Push this button to set timer .
(A receiving beep is heard).
Mode select button (MODE)
Push button to select modes. Each time
you push the button, a mode is selected
in a sequence that goes from AUTO,
COOL, DRY, HEAT, FAN ONLY, and
back to AUTO. (A receiving beep is
heard).
1-1-2. Remote Functions (Cover Open)

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1-1-3. Names and Functions of Indicators on Remote Controller
TRANSMITTER display
Shows when the signal is being
transmitted to the undoor unit. ON/OFF display
Shows if unit is enabled.
LOCK display
Shows if the Lock function is enabled.
MODE display
Shows the current mode of the unit,
AUTO, COOL, DRY, HEAT or FAN ONLY.
TEMP display
Shows the temperature setting of the
unit.
ECONOMY display
Shows if the economy mode is in
operation.
FAN display
Shows the units current fan speed
setting. AUTO, LOW, MED or HIGH.
CLOCK display
Shows the current time.
TIMER display
Shows the current timer ON and OFF
settings.

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1-2-2. Remote Receiver Switch
Remote control The unit will be controlled by the Infrared Remote Control.
Auto The unit will operate in temporary Auto mode with the set temperature at 24°c
Cool The unit will operate in temporary Cooling mode with the set temperature at 17°c
The air conditioner can be controlled using this method in the event of misplacing the Infrared remote
controller or its malfunction.
1-2-3. Audible acknowledgement
The remote receiver acknowledges each transmission from the Infrared remote controller, with an audible
beep.
1-2. REMOTE RECEIVER FUNCTIONS (FITTED TO INDOOR UNIT)
1.2.1. Remote Receiver Features
Audible acknowledgement.
Remote Receiver Switch
Infrared Receiver
Yellow LED lights when the
timer is in operation. Green LED lights when unit is in
defrost mode.
Red LED lights when unit is
operational.

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1-3. HANDLING THE REMOTE CONTROLLER
1-3-1. Location of the Remote Controller
Operate the remote controller where its signals can reach the receiver on the air conditioner (within 7m)
1-3-2. Remote Controller Mounting bracket
A mounting bracket is supplied with the remote controller.
(1) Installing the mounting bracket
Install the bracket for the remote controller where the unit can be operated, with the remote in the bracket.
(2) Fitting and removing the remote controller
To mount, hold the remote controller parallel to the mounting bracket and push it in fully. To remove, slide the
remote controller upwards and out from the mounting bracket.

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1-3-4. Cautions
• The air conditioner will not operate if curtains, doors or other materials block the signal from the remote controller
to the indoor unit.
• Protect the remote controller from moisture.
• Do not expose the remote controller to direct sunlight or heat.
• If the infrared signal receiver on the indoor unit is exposed to direct sunlight, the air conditioner may not function
properly.
• If the room using the air conditioner has fluorescent lighting with electronic starters, signals may not be properly
received. If you are planning to use such fluorescent lamps, consult your local dealer.
• If other electrical appliances react to the remote control, either move these appliances or consult your local dealer.
1-3-3. Replacing Batteries
The remote controller uses two alkaline dry batteries (LR03 AAA size).
(1) Remove the cover of the battery compartment at the back of the remote controller by sliding it out in the direction of
the arrow.
Remove used batteries and dispose of responsibly, then insert new batteries.
(2) Reset the remote controller by pressing the ACL button in the battery compartment, with a pointed object
(3) Replace the cover of the battery compartment.
(4) If remote controller fails to operate properly, repeat reseting by pressing ACC button.
Notes:
• When replacing batteries, use correct type. Incorrect batteries may cause the remote controller to malfunction.
• If you do not use the remote controller over a long period, remove the batteries. Otherwise, battery leakage may
damage the remote controller.
• The average battery life during normal use is approximately one year.
• Replace the batteries when there is no receiving beep from the indoor unit or if the transmission indicator on the
remote control unit fails to show.
Ensure the correct
polarity of
batteries
ACL Button

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1-4-1. AUTO Operation
When you set the air conditioner in AUTO mode, it initially selects cooling mode. Then depending on the room tempera-
ture the mode of operation may change.
Operation Steps
Supply Power On
The OPERATION LED on the remote receiver starts flashing.
(1) MODE button
• Select AUTO.
(2) TEMP. button
• Push the TEMP. button.
• Select the required temperature between 17°C to 30°C.
(3) ON/OFF button
• Push this button to start the air conditioner.
• The OPERATION LED on the remote receiver lights. The operating mode is selected in accordance with the
room temperature and operation starts after approximately 3 minutes.
Stop: ON/OFF button
• Push this button again to stop the air conditioner.
Note:
• If the AUTO mode is uncomfortable, you can select the desired conditions manually.
• When you select the AUTO mode, you do not have to set the fan speed. The FAN speed display will show
AUTO and the fan speed will be automatically controlled.
3
2
1
1-4 OPERATING MODES
Once selected the operating mode is stored in the unit's microcomputer memory. Thereafter, the air conditioner will
operate under the same conditions when you operate the ON/OFF button of the remote controller.

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1-4-2. HEAT Operation
Operation Steps
Supply Power On
The OPERATION LED on the display panel of the indoor unit starts flashing.
(1) MODE button
• Select HEAT mode.
(2) TEMP button
• Set the required temperature.
(3) FAN button
• Select any of the “AUTO”, “LOW”, “MED” and “HIGH”.
(4) ON/OFF button
• Push this button again to start the air conditioner.
• The OPERATION and DEFROST LEDs light on the remote receiver. After a period of preheating the
DEFROST LED extinguishes and heating operation starts.
Stop: ON/OFF button
• Push this button again to stop the air conditioner.
(B) 1-4-4. FAN ONLY Operation
• The FAN ONLY mode does not control temperature. Therefore, perform only steps (1), (3) and (4) to
select this mode.
3
2
1
4
(A) 1-4-3. COOL Operation
Operation Steps
Supply Power On
The OPERATION LED on the remote receiver starts flashing.
(1) MODE button
• Select COOL mode.
(2) TEMP button
• Push the TEMP. button.
• Cooling 17°C or higher
(3) FAN button
• Select any of the “AUTO”, “LOW”, “MED” and “HIGH”.
(4) ON/OFF button
• Push this button again to start the air conditioner.
• The OPERATION LED on the display panel of the lndoor unit lights. Operation starts after approximately 3
minutes.
Stop: ON/OFF button
• Push this button again to stop the air conditioner.