Mitsubishi Electric JT-SB216DS-W-AUS User manual

HAND DRYER
HAND BOOK
(For HONG KONG)
Model: JT-SB216DS-W-AUS
Notice:
The term of validity is one year from the issued date.
FOR DEALERS
Nameplate
Repair work should be performed by
the manufacturer, its service agent or
similarly qualified person in order to
avoid a hazard.
April 2006 No. U122

Contents
Safety precautions.....................................................................3-4
1. Features................................................................................. 4
2. Names and functions of the hand dryer's components.......... 5
2-1 Configuration diagram and appearance diagram ............. 5
2-2 Operating procedure......................................................... 5
3. Specifications......................................................................... 6
4. Dimensions............................................................................ 6
5. Wiring diagrams..................................................................... 7
6. Troubleshooting................................................................ 8-12
7. How to call ........................................................................... 13
8. Technical notes.................................................................... 14
9. Overhaul procedure........................................................ 14-20
10. Sequence timing chart......................................................... 21
11. Description of circuit operation ....................................... 21-22
12. Circuit diagram and items to check ................................ 23-24
13. Board diagram and items to check ...................................... 25
14. Parts list.......................................................................... 26-34

—3—
Caution for electric shock
If it is absolutely necessary to inspect the circuitry
while turning on electricity, exercise cau-
tion not to touch live parts.
(Touching live parts may cause electric
shock.)
Modification prohibited
Never modify the product.
(Modifying may cause electric shock, fire,
and/or injury.)
Conduct electric work correctly
• Use the designated electric wires, and conduct
electric work according to the Electrical Equipment
Technical Standard, Internal Wiring Regulation, and
Installation Work Guide.
• Be sure to check whether the terminals
and fixed wiring are securely connect-
ed.
(Improper connection or installation may
cause electric shock and/or fire.)
Scratches and deterioration
Be sure to replace scratched and/or
deteriorated fixed wiring and lead wires.
(They may cause electric shock and/or fire.)
Turn off the power
• Be sure to turn off the ground fault circuit interrupter
and the power switch of the product's main body
prior to starting repair work. (The charge voltage in
the circuitry remains for another minute or so, even
after the power is turned off and the LED is unlit;
therefore, wait for at least 1 minute
before disassembling the product.)
(Not turning off the power may cause electric
shock.)
Use proper parts and tools
Use the parts listed in the service parts list of the sub-
ject model with appropriate tools when
repairing.
(Using improper parts and tools may cause
electric shock, fire, and/or injury.)
Check insulation
Upon completing repair work, always measure an
insulation resistance. Verify that it is at
least 1 MΩ, and then turn on the power.
(Inadequate insulation may cause electric
shock.)
Avoid misuse
• This appliance is not intended for use by young chil-
dren or infirm persons unless they are adequately
supervised by a responsible person to ensure that
they can use the appliance safely.
• Young children should be supervised
to ensure that they do not play with the
appliance.
Wear gloves
Always wear a pair of gloves during
inspection or repair work.
(Not wearing gloves may cause injury.)
Safety precautions
●Please read the following items carefully before using this product, and perform the maintenance and repair work
of the product correctly and safely.
●The types and levels of the dangers from mishandling this product are categorized and indicated by the signs
shown below.
Warning
Items that may cause death or serious injury if the prod-
uct is mishandled.
Caution for
electric shock
Implement by always
following instructions
Implement by always
following instructions
Implement by always
following instructions
Prohibited
Implement by always
following instructions
Implement by always
following instructions
Implement by always
following instructions
Items that may cause injury and/or damage to buildings
and/or fixtures if the product is mishandled.
Caution
Implement by always
following instructions

—4—
1. Features
1Speed drying
Equipped with a turbo fan, the hand dryer blows away drops of water on the hands with a high-speed jet air
from a large air volume, high-speed rotary DC brush-less blower, thus quickly draying the hands.
2Easy to use
The rubbing of the hands is no longer necessary. With the hand dryer, you can dry both hands by just insert-
ing and then removing them slowly.
3Hygienic
• The hand dryer is automatically started by a sensor. Thus, there is no need to touch the hand dryer with
your wet hands. It is very hygienic.
4Antibacterial
• The hand dryer uses a silver inorganic substance; thus, maintaining an antibacterial effect for an extended
period of time.
• The hand dryer meets the antibacterial effect standard defined by the Society of Industrial Technology for
Antimicrobial Articles (SIAA).
5Easy maintenance
The hand dryer does not require a paper or cloth towel, thus eliminating the dumping of paper waste and the
exchanging of towels. Also, the hand dryer is easy to clean.
6Highly safe with mischievous use prevention timer
To prevent continuous operations of the hand dryer by mischievous use or malfunction, it has a built-in timer
that automatically stops drying upon reaching a specific period of time.
7Economical
The monthly electricity expense is the only expense the hand dryer requires. Thus, it is extremely economi-
cal for use over an extended period of time.
• Inspect the condition of the earth. Correct it if improperly grounded. Also, check to see if a ground fault circuit
interrupter is being installed. If not, install one.
• Check to see whether or not the air filter and the drain tank are installed securely in place.
• Do not leave a towel or other object in the hand-drying area.
• Never place any object on the main body nor cover it.
• Make sure that the product is not being used in any of the following locations:
Locations where the temperature can exceed 0°C to 40°C.
Locations where the humidity can exceed 5%RH to 95%RH.
Locations where the unit may come into direct contact with water.
Locations where the unit is under direct or strong sunlight. (May cause sensor to malfunction.)
Locations where there is a lot of condensation.
Do not use with chemicals (detergents, etc.) on your hands. (This may reduce the productive life of the unit.)
Do not use in locations where corrosive, neutral, or reductive gases are present.
(This may reduce the productive life of the unit and/or cause malfunctions.)
Locations where solt damage may occur.
Places lower than -20m or higher than 2000m above sea level.
Items to check during repair work
●Upon completing repair work, verify that the product operates normally. Clean the product's main body and sur-
rounding area, and notify the customer of the completion of the repair work.

—5—
2. Names and functions of the hand dryer's components
2-1 Configuration diagram and appearance diagram
2-2 Operating procedure
With both hands open, insert them
all the way in.
The unit will come on automatically.
Pull them out slowly,
letting the air blow the
water off.
Pull hands all the way
out.
Repeat until dry

—6—
Voltage
(Vac)
220-240
Model
JT-SB216DS-W-AUS
Frequency
(Hz)
50-60
Phase
single-phase
Power consumption
(W)
650
Current
(A)
4
Weight
(kg)
11
Dimensions (W ✕D ✕H)
(mm)
300 ✕220 ✕687
The drain tank capacity is 0.8 .
3. Specifications
4. Dimensions
Unit (mm)

—7—
5. Wiring diagrams

—8—
• Is the power supply connected?
• Is the power switch on?
• Measure the resistance between the current fuses on
the control board.
* Replace the control board
if the measured resistance value is other than the
normal value shown in the table at right.
• Is the motor's lead wire connector connected?
• Measure the resistance between the motor's two
"blue" lead wires.
* Replace the motor if the
measured resistance value is other than the normal
value shown in the table at right.
6. Troubleshooting
Precautions when diagnosing malfunctions:
●When servicing, be sure to recreate the malfunction 2 to 3 times before initiating repairs.
●When servicing, always keep proper footing.
●When servicing, make sure that the cord is pulled out of the outlet, or the breaker is off if no mains connector is
built in the product, so as no electrical shock or injury to occur. Pay sufficient attention when working on the
product.
●Always connect the power wire properly.
●When removing the circuit board, always hold it at both ends and remove carefully so as not to apply force to
the surface mounted parts.
●When removing the circuit board, be careful of the metal edges on the board.
●When inserting or extracting pin connectors on the circuit board, hold the entire housing. Do not pull on the lead
wires.
●If a malfunction of the printed circuit board is suspected, check for any broken copper-printed pattern, burnt or
discolored parts.
●Be sure to restore same settings as those on the one just replaced.
* The names of the parts indicated are compatible with those listed under the "Name of part" in the chapter
"Parts list".
Description of error modes below
LED2LED1
[●] Lit [✩] Blinking (0.4 sec on/0.4 sec off)
[●] Unlit [✻] Fast blinking (0.1 sec on/0.1 sec off)
Error mode display Cause Check procedure and action to take
LED1 LED2
Power Inspection
●●
Measured value Decision/action
0ΩNormal
Measured value Decision/action
0ΩNormal
(No display, no operation)
1.Power off
2.Current fuse
3.Motor temperature fuse

—9—
• Unplug the relay connector, and measure the
resistance at two places between each pair of the
power switch's "brown" and "blue" lead wires.
• Replace the control circuit if other than above.
• Is the sensor's lead wire connector (CN2) connected?
• Unplug the control circuit's CN2 (3-pin connector),
measure the voltage between pins 1 and 2 as well as
pins 1 and 3 of the CN2 by diode check (measure on
the lead wire side).
• Replace the control circuit if other than above.
Error mode display Cause Check procedure and action to take
LED1 LED2
Power Inspection
●●
Measured value Decision/action
1.5 to 1.8V Normal
(No display, no operation)
LED1 LED2
Power Inspection
●●
(Operates, but no display)
4.Power switch
5.Control circuit
1.Display board
2.Control circuit
• Is the filter clogged with dust and the like? →If so,
clean the filter.
• Are the temperatures of the control circuit and
electronic parts too high? →If so, turn OFF the power
switch and lower the temperatures to normal
temperatures (40 ˚C or less).
• Replace the control circuit if other than above.
• When the operation time exceeds 30 seconds, the
operation stops by the activated mischievous use
prevention timer.
• Are the sensor's three windows stained?
• Is the sensor's lead wire connector connected?
• Are the sensor's board positions displaced (top/bottom
light emitting boards, light receiving board)?
• Measure the forward voltages of the LEDs on the
top/bottom light emitting boards and the photo diode
(PHD) on the light receiving board with a measuring
device that has a diode check function.
* Replace the top/bottom light emitting boards and the
light receiving board if the measured values are
other than the normal values shown in the table
above.
• Replace the control circuit if other than above.
LED1 LED2
Power Inspection
✩✩
1.Filter clogged with dust
2.PTC operation (control
circuit)
3.Control circuit
1.Continuous operation
2.Stained sensor's
windows
3.Disengaged sensor
4.Displaced sensor's
board positions
5.Sensor light
emitting/receiving
diode failure
6.Control circuit
(Heat sink overheat)
LED1 LED2
Power Inspection
✩●
(Mischievous use
prevention timer)
Item name Measured value Decision
LED 0.9 to 1.2V Normal
Photo diode 0.5 to 0.8V Normal
– side
+ side
Tester

—10—
• Measure the winding resistance. (Measure the
resistance values between "black and white," "red and
black," and "white and red" wires of the 1-pin
connector coming from the motor.)
* Replace the motor if the measured values are other
than the normal value shown in
the table at right.
• Replace the control circuit if other than above.
• Is a rated power supply voltage of 220 to 240 V being
applied?
• Is a rated power supply voltage of 220 to 240 V being
applied?
• Is a power supply frequency 50 or 60 Hz?
• Replace the control circuit if other than the above.
Error mode display Cause Check procedure and action to take
1.Motor
2.Control circuit
1.Excess voltage applied
2.Low voltage
3.No power supply
frequency
4.Control circuit
• Replace the control circuit.
• Measure the winding resistance. (Measure the
resistance values between "black and white," "red and
black," and "white and red" wires of the 1-pin
connector coming from the motor.)
* Replace the motor if the measured values are other
than the normal value shown
in the table at right.
• Replace the control circuit if other than above.
• Replace the control circuit.
LED1 LED2
Power Inspection
●✩
1.Control circuit
1.Motor
2.Control circuit
1.Control circuit
(Current detection circuit
abnormality)
LED1 LED2
Power Inspection
✩●
(Motor lock)
LED1 LED2
Power Inspection
●✩
(Overvoltage, low voltage,
power supply frequency
detection)
Measured value Decision
Approx. 3.4 to 3.7ΩNormal
LED1 LED2
Power Inspection
●●
(Overcurrent detection)
Measured value Decision
Approx. 3.4 to 3.7ΩNormal
LED1 LED2
Power Inspection
●✻
(Microcomputer RAM abnormality)

—11—
• Replace the light receiving board.
• Replace the control board if other than above.
• Are the sensor's three windows stained?
• Is the sensor's lead wire connector connected?
• Are the sensor's board positions displaced (bottom
light emitting boards, light receiving board)?
• Measure the forward voltages of the LEDs on the
bottom light emitting boards and the photo diode
(PHD) on the light receiving board with a measuring
device that has a diode check function.
* Replace the bottom light emitting boards and the light
receiving board if the measured values are other than
the normal values shown in the table above.
• Replace the display board or the control circuit if other
than above.
1.Lighting board
2.Control circuit
1.Stained sensor's windows
2.Disengaged sensor
3.Displaced sensor's
board positions
4.Sensor light
emitting/receiving
diode failure
5.Control circuit
Phenomenon Cause Check procedure and action to take
Phenomena of problems other than error mode display
Lighting does not turn on.
The hand dryer starts
drying as soon as the
power switch is turned
ON.
Item name Measured value Decision
LED 0.9 to 1.2V Normal
Photo diode 0.5 to 0.8V Normal
– side
+ side
Tester
• Are the sensor's three windows stained? →Clean the
windows if stained.
• Is the sensor's lead wire connector connected?
• Are the sensor's board positions displaced? →Install
the sensor light boards in their proper positions if
displaced (top light emitting boards, light receiving
board).
• Measure the forward voltages of the LEDs on the top
light emitting boards and the photo diode (PHD) on
the light receiving board with a measuring device that
has a diode check function.
* Replace the top light emitting boards and the light
receiving board if the measured values are other
than the normal values shown in the table above.
• Replace the display board or the control circuit if other
than above.
• Are foreign particles being attached to the motor's
fins?
• Is the filter clogged with dust?
1.Stained sensor's
windows
2.Disengaged sensor
3.Displaced sensor's
board positions
4.Sensor light
emitting/receiving
diode failure
5.Control circuit
1.Suction of foreign
particles
2.Filter clogged with dust
The hand dryer does not
stop after removing the
hands.
Abnormal noise is
generated.
Item name Measured value Decision
LED 0.9 to 1.2V Normal
Photo diode 0.5 to 0.8V Normal
– side
+ side
Tester

—12—
[Reference data] LED display list
Description LED1 LED2
Power Inspection Main cause of occurrence
When normal
Abnormal 1
Abnormal 2
Abnormal 3
Power switch OFF
Power switch ON
Mischievous use prevention
timer
Motor rotating excessively, out
of step
Motor startup error, locked
Overcurrent
Overvoltage, low voltage, no
power supply frequency
Fin overheating
Current detection circuit
abnormality
Microcomputer abnormality
Blown fuse
●
●
✩
●
✩
●
●
✩
●
●
●
●
●
●
●
●
●
✩
✩
✩
✻
●
Continuous operation, sensor
stained/disengaged
Main circuit, motor demagnetized
Main circuit, motor's wire
open/disconnected
Main circuit, motor short-circuited
Main circuit, power supply, 5A-fuse
blown out (excess voltage applied)
Main circuit, no fin, operated at high
temperature
Main circuit
Main circuit
Current fuse, temperature fuse, power
supply
[●] Lit [✩] Blinking (0.4 sec on/0.4 sec off)
[●] Unlit [✻] Fast blinking (0.1 sec on/0.1 sec off)

—13—
7. How to call
Phenomenon 1 Phenomenon 2 Action to take
1.No air comes out after
inserting the hands.
2.The airflow is too low to dry
the hands quickly.
3.Water leaks from the hand
dryer.
4.Air does not come out
immediately after turning
on the power and inserting
the hands.
5.Odor emanates from the
hand dryer.
• The indicator lamps on the
display are not lit.
• The right indicator lamp on
the display is blinking.
• Turn ON the power switch.
• Because the hand dryer was operated over 30
seconds, the safety device was activated, thus
automatically stopping the unit.
• Are foreign particles and/or stains attached to
the sensor part?
• Is the hand dryer exposed to direct sunlight?
* Change the installation location, or block
sunlight with sunshade so that the sensor part
is not exposed to direct sunlight.
• Is the filter closed with dust?
(Clean the filter as often as once a week.)
• Is the drain tank full with water? (If so, drain
water.)
* If the hand dryer is operated with the drain
tank full, water may soak into the main body.
To prevent this, an overflow hole is provided in
the drain tank.
• Is the drain tank installed properly?
• After the power switched is turned on, the hand
dryer needs one second to charge the control
circuit. Therefore, the hand dryer does not blow
air during this period.
• Is the drain tank full with water? (If so, drain
water.)
• Is there any foreign particle inside the drain
tank? (Remove the foreign particle.)

—14—
8. Technical notes
• By employing a mono-form design, the hand dryer blends into various shapes of architectural spaces.
• By using an angular nozzle, the hand dryer reduces air blow back, making it more comfortable to use.
• The joint of the hand insertion section has been reduced by half. It minimizes the clogging of dust in the joint,
making cleaning much easier.
• The hand insertion section, drain tank and drain hose are treated by an antimicrobial process, improving
hygiene.
9. Overhaul procedure
Precautions when overhauling the unit:
●Before replacing parts, take steps in accordance with the instructions listed in the chapter "Troubleshooting".
●When servicing, always keep proper footing.
●When servicing, make sure that the cord is pulled out of the outlet, or the breaker is off if no mains connector
is built in the product, so as no electrical shock or injury to occur. Pay sufficient attention when workingon the
product.
●Always connect the power wire properly.
●Make sure that the proper functioning of the unit is restored when the repair is complete.
* The names of the parts indicated are compatible with those listed under the "Name of part" in the chapter
"Parts list".
(1) Turning power off
1Shutdown the unit.
2Turn off the breaker on the distribution board.
(2) Power switch
1Pull out the drain tank, and then remove the front panel
clamping screws (two special silver screws 4 x 16, indicated by ●).
2Remove the connector cover clamping screw (one PTT
screw 4 x 16, indicated by ●).
3Remove the relay connector (indicated by ●).

—15—
4Remove the maintenance cover clamping screws (marked
by ▼) (five special black screws 4 x 16, indicated by ●).
5Pull out the maintenance cover, and then remove the switch
cover clamping screw (one PTT screw 4 x 16, indicated by ●).
6Open the lid of the switch cover, and then remove the switch
clamping screw (one PPT screw 3 x 10, indicated by ●).
(3) Display board
1Perform the same work as in steps 1through 4of (2) above.
2Pull out the maintenance cover, and then remove the display
board lead wires (indicated by ●).
3Remove the display board from the mounting spacers
(indicated by ●).

—16—
(4) Control board
1Perform the same work as in steps 1through 3of (2) above.
2Remove the control board clamping screw (one PTT screw
4 x 16, indicated by ●).
3Remove the cord clip clamping screw (one PTT screw
4 x 16, indicated by ▲).
4Remove the line filter clamping screw (one PTT screw
4 x 16, indicated by ).
7Pull out the control board, and then remove the control
board cover clamping screw (one PTT screw 4 x 6,
indicated by ●).
8Remove the control board lead wires, and then remove
the bushing (indicated by ●).
5Remove the terminal cover clamping screw (one PTT screw
4 x 16, indicated by ●).
6Remove the earth lead wire (green / yellow) from the
terminal.

—17—
6Remove the blower.
*Replace the packing of the disassembled part with a new
one.
* When replacing the packing, be careful not to twist it.
5Remove the blower cover clamping screws (four PTT
screws 4 x 16, indicated by ●).
* When installing the blower cover, be sure to securely inlay
the part indicated by .
* Once the blower cover is installed, slide the line filter
(indicated by ▲) over the lead wires (red, white and
black) of the blower.
(6) Light emitting board (top)
1Perform the same work as in step 1of (2) above.
2Remove the cover clamping screws for light emitting board
(top) (two PTT screws 4 x 16, indicated by ●), and disconnect
the lead wires of the light emitting board.
(5) Blower
1Perform the same work as in steps 1through 8of (4) above.
2Remove the drain hose clamping screw (one PTT screw 4 x
16, indicated by ●).
3Remove the bushing (indicated by ▲).
*When installing the bushing, be sure to securely inlay it all the
way to the base.
4Remove the relay connector (indicated by ●).

—18—
7Remove the left reinforcing plate clamping screws (four PTT
screws 4 x 16, indicated by ●; one PPT screw 4 x 16, indicated
by ▲).
8Remove the right reinforcing plate clamping screws (four PTT
screws 4 x 16, indicated by ●; one PPT screw 4 x 16, indicated
by ▲).
9Remove the panel (front) clamping screws (five PTT screws
4 x 16, indicated by ●).
0Remove the cord clamping screw (one PTT screw 4 x 16,
indicated by ▲).
(7) Light emitting board (bottom)
1Perform the same work as in steps 1through 6of (5) above.
2Perform the same work as in steps 1and 2of (6) above.
3Remove the right side panel clamping screws (two PTT
screws 4 x 16, indicated by ●).
4Remove the left side panel clamping screws (two PTT
screws 4 x 16, indicated by ●).
5Remove the reactor clamping screw (one PTT screw 4 x16,
indicated by ▲).
6Remove the reactor (indicated by ).

—19—
(8) Light receiving board
1Perform the same work as in steps 1through Bof (7) above.
2Reverse the main body, remove the clamping screws (twelve
special black screws 4 x 16, indicated by ●) from the rear surface,
and then reverse the main body back to the original position again.
ARemove the board fixing plate clamping screws (two PTT
screws 4 x 16, indicated by ●).
BRemove the light emitting board (bottom) from the board
fixing plate, and disconnect the lead wires.
3Remove the panel (center).
4Remove the duct (T-shaped) clamping screws (three PTT
screws 4 x 16, indicated by ●).

—20—
5Remove the panel (rear).
* Be careful not to drop the water immersion protective rubber
(indicated by ●).
* Replace the packing of the disassembled part with a new one.
* When replacing the packing, be careful not to twist it.
6Remove the light receiving board holder clamping screws
(two PTT screws 4 x 16, indicated by ●).
* Replace the packing of the disassembled part with a new
one.
* When replacing the packing, be careful not to twist it.
7Remove the light receiving board from the holder. Remove
the two claws (indicated by ●).
* Replace the packing of the disassembled part with a new one.
* When replacing the packing, be careful not to twist it.
Cautions:
●Reverse the order to replace the Product.
●Make sure that the proper functioning of the unit is restored when
the repair is complete.
*Precautions when replacing Product