Toshiba RBC-U33P-E User manual

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Ceiling panel
Model : RBC-U33P-E
Precautions for safety
• The product and this manual are provided with important safety notices to ensure safe use and protect the user and
other people from hazards and preclude damage to property.
Be sure that you fully understand the following contents (expressions and graphic symbols) and read this manual
carefully. Always observe the precautions.
WARNING
• Ask an authorized dealer or qualified installation professional to install the ceiling panel.
Inappropriate installation may result in water leakage, electric shock or fire if you install it by yourself.
• Carry out an installation work securely according to this Installation Manual.
Inappropriate installation may result in water leakage, electric shock or fire.
• Attach the ceiling panel on a ceiling that withstands the weight of the ceiling panel.
Insufficient strength may cause a fall of the unit, which may result in injury.
• Electrical work must be performed by a qualified electrician in accordance with the Installation Manual.
Make sure the air conditioner uses an exclusive power supply.
The capacity shortage of the power circuit or improper electrical work may result in electric shock or fire.
• Connect the specified wires firmly and clamp them securely so that external force applied to the wires does
not affect the connector pins.
Improper wire connection or clamping may result in fire or malfunction.
• Be sure to connect earth wire. (grounding work)
Do not connect the earth wire to a gas pipe, water pipe, lightning conductor, or a telephone earth wire.
Incomplete earthing may result in electric shock.
• Never modify or repair the product.
Incomplete modification or repair may result in electric shock or fire.
CAUTION
• Wear heavy work gloves during the installation work to avoid injury.
Components
Part name Ceiling panel Installation manual CD-ROM
Quantity 1 1 1
Shape
Louver This manual
REQUIREMENT
Do not apply excessive force to the louver, as it may cause a malfunction.
INSTALLATION MANUAL
(For 4-Way Cassette type)
(English)

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1. Preparation Before Installing the Ceiling Panel
Position check of indoor unit
1. Confirm the position of the indoor unit according to the
installation Manual.
2. Check whether size of the ceiling opening hole is in the
following range or not.
860 mm × 860 mm to 910 mm × 910 mm
3. Using the installation gauge which is attached to the
indoor unit package, determine position of the indoor unit
against the ceiling surface. If the position of the indoor unit
is not correct, air leak, water leak (dewing), or malfunction
of the louver is caused.
• Do not put the ceiling panel downward, lean it, or leave
it on a projection to avoid a damage on the surface of
the ceiling panel.
• Handle with care so as not to deform the tentative
hanging hooks attached to the rear side of the ceiling
panel.
• Do not apply excessive force on the louver or the
styrofoam on the air outlet while hanging it tentatively
to the indoor unit. (It may causes a trouble on the
louver.)
Be sure to adjust the position between the indoor
unit and the hanging-up height (12 mm to 17 mm).
Failure to do so cause the malfunction or other
damages.
Indoor unit
Ceiling opening size
Ceiling board
Installation gauge
(Indoor unit accessory)
12 to 17
Unit: mm
Heat insulator
CAUTION
Do not remove the heat insulators.
A heat insulator on the corner of
rear side of the panel are for dew
protection. Do not remove the heat
insulators because removing them
causes dew drop or water leakage.
2. Installation to Indoor Unit
Removal of air inlet grille
1. Pushing the corner on the air inlet grille, slide the hook in the direction of the arrow mark (1) and slowly open the grille.
2. Release the safety strap hook from the ceiling panel.
• Do not remove the safety strap screw on the air inlet grille side.
3. Remove the hinge section of the air inlet grille from the ceiling panel in the direction of the arrow mark (2) while the air inlet
grille is opened.
(2)
(1)
(1)
(1)
(1)
(2)
(2)
Adjust
corner cap
Ceiling
panel Air inlet
grille
Adjust
corner cap
Hook for air
inlet grille
Hook
Slide
Push
Hinge
Safety strap
hook
Hook hole
of ceiling
panel
Removal of adjust corner cap
1. Lift the corner of the adjust corner cap toward direction of the arrow mark (1) and then remove all four corners.
(1)
(1)
Adjust corner cap
Ceiling panel
String
(1)(1)

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Positioning of the panel fixed implement
1. After removing the adjust corner cap, check that the panel fixed implement (bracket) remains open as shown in (Fig. 1).
2. Slide the bracket to remain it open because the ceiling panel can not be installed in the indoor unit if the bracket is closed
(Fig. 2).
Open
Leave it open
Close
Panel fixed implement
(Fig. 1) (Fig. 2)
Open Close
Installation of ceiling panel
1. Insert the two tentative hanging hooks of the ceiling panel into the square holes in the indoor unit. (Fig. 3, Fig. 4)
• The ceiling panel aligns directionally with the indoor unit. Check that the lead wires of louver motor connector are on the
Electrical control box side.
• When removing the ceiling panel, push the tentative hanging hooks toward the outside while supporting the panel.
(Fig. 3) (Fig. 4)
Drain pipe Square hole on the indoor unit
Electrical control box
Refrigerant pipe
Panel fixed screw
Ceiling panel Louver motor wires
Tentative hanging hook Engraved mark: REF.PIPE
Square hole of an
indoor unit
Push to remove
Tentative hanging hook
2. Lift the corner of the frame in a panel (Fig. 5), slide the panel fixed implement (bracket) in the direction of the arrow so that
the panel fixed screw head comes to the specified position on the bracket (Fig. 6). Do the same for all four corners.
• Slide the bracket so that the screw head comes under the bracket.
• Panel fixed screws are attached to the indoor unit before shipment.
3. Confirm there are no gaps between the indoor unit and ceiling panel or the ceiling panel and ceiling surface. (Fig. 7)
Panel fixed screw The frame in a panel Panel fixed implement
Hole
Panel fixed screw
Ceiling surface
No clearance
Indoor unit
Ceiling panel
Lift the corner of the frame in a panel so that
the panel fixed screw head comes up.
Push the bracket securely.
• Slide the bracket after loosening the panel fixed
screw so that the bracket is easy to be hooked
on the screw head.
• Tighten the panel fixed screw again after sliding
the bracket.
(Fig. 5) (Fig. 6) (Fig. 7)

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CAUTION
Air leak
Air leak from ceiling
Generation of dust Dew drop/water leakage
• When a clearance is found between the ceiling
surface and the ceiling panel, readjust height
of the indoor unit even if the screws have been
tightened.
Adjust so that there
is no clearance.
• As shown in the following figure, a trouble may
becaused if the screws are incompletely tightened.
Tighten the fixed nut securely after the adjustment.
• The height of the indoor unit with ceiling panel can be
adjusted through the hole in the ceiling panel corner if
doing so does not affect the horizontal level and drain
pipe of the indoor unit.
Wiring of ceiling panel
1. Remove screw A for the fixation of the electrical control box cover and loosen the screw B. Slide the cover inside so that
the hook part can be removed (The electrical control box cover remain being hooked on the hinge.).
Screw A
Screw B
Hook part Hinge
Electric control
box cover
2. Pass the louver motor wire from the ceiling panel through the clamper as shown in figure, then connect them to the
20P-connector. (CN510: White) on the PC board of the indoor unit
• Check the cables are connected surely.
• Incomplete connection causes such a trouble as the louver does not work.
Pass through the clamper
Plug in CN510
Pass the wires through the clamper as shown in figure
Louver motor wires
Connection diagram
(For the explanation only,
the orientation of the indoor
unit is changed)
3. Install the electrical control box cover in the reverse procedure of its opening process.
• Take care not to catch the wires between electrical control box and its cover, or between the indoor unit and the
ceiling panel.

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Installation of adjust corner cap / air inlet grille
• This ceiling panel can be installed from anyway of 4 directions by turning the air inlet grille. Change the direction as shown
in figure on the customer’s demand for a company name on the corner cap or according to the direction matching of the air
inlet grille when multiple units are installed.
• Be sure to install the Wireless remote controller kit (separate sold parts) or the Occupancy sensor (separate sold parts) in
correct orientation, since the Wireless remote controller kit or Occupancy sensor can be installed at only one diagonal corner
of the drain pipe. Failure to do so cause the malfunction.
Mounting position for adjust corner cap with company
name at factory default.
(The corner cap can be installed at any position when
not using the Wireless remote controller kit or the
Occupancy sensor.)
The Wireless remote
controller kit or the
Occupancy sensor
(separate sold parts)
• Only this position can
be installed. 4 direction-free
Electrical control box
Indoor unit
drain pipe side
Position of hook for air inlet grill
at factory default.
Indoor unit
refrigerant pipe side
Installation of adjust corner cap
Push claw A (two positions) and claw B (three positions) into the holes, check that none of the claws are out of alignment.
Failure to securely fit those claws into the holes cause water leakage
1. Hook the fall-preventive strap for adjust corner cap on the ceiling panel claw securely.
Claw (Hook here)
Fall-preventive strap
Adjust corner cap
2. Insert two claws A on the adjust corner cap into the square holes of the ceiling panel in the arrow direction.
Square hole
Claw A
Claw A
3. Align the three claws B on the back of the adjust corner cap with the holes on the corners of the panel and push them into
the holes.
Claw B
Push the three claws
into the holes.

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Installation of air inlet grille
• Install the air inlet grille in the reverse procedure of the removal.
• Be sure not to pinch the louver motor wiring to install the air inlet grille.
• Attach a Safety strap hook of the air inlet grille to the ceiling panel.
Hook hole of
ceiling panel
Safety strap hook
3. Louver operation set up
REQUIREMENT
• Use the wired remote controller to change the setting.
• The setting cannot be changed using the wireless remote controller, sub remote controller, or remote-controller-less system
(for central remote controller only). Therefore, installs the wired remote controller to change the settings.
CAUTION
Set only the CODE No. shown in the following table: DO NOT set any other CODE No.
If a CODE No. not listed is set, it may not be possible to operate the air conditioner or other trouble with the product may
result.
1. Turn the power on.
2. Push and hold + + buttons simultaneously for 4 seconds or more. After a while the display flashes.
Confirm that CODE No. is [10]. Also, the fan of the selected unit runs and the louvers start swing.
• If the CODE No. is not [10], push button to clear the display content, and repeat the procedure from the beginning
3. Select an indoor unit to be set by pushing button (Left side of the button). Indoor unit No. changes each time the
button is pushed.
4. Change the CODE No. to [47] with buttons.
5. Set the (SET DATA) like as the following table with
TIME
buttons.
6. Push button. The display state changes from flashing to lighting, and the setting is fixed.
7. Continue set the CODE No. [48] ~ [4E] like as the table with repeat procedure (4) - (6).
• To change setting of another indoor unit, repeat from procedure (3)
8. When settings have been complete, push button to determine the settings.
• When button is pushed, flashes and then the display content disappears and the air conditioner enters the
normal stop mode. (While is flashing, no operation of the remote controller is accepted.)
CODE No. SET DATA
47 0024
48 0024
49 0030
4A 0035
4B 0040
4C 0043
4D 0046
4E 0060
4862 53
<RBC-AMT32E>

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4. Other descriptions
Check after installation
• Check again there is no clearance between the indoor unit and the ceiling panel, and between the ceiling panel and the
ceiling surface.
* A clearance causes water leak or dewing.
• Check the cables are connected surely.
* Incomplete connection causes such a trouble as the louver does not work.
• Failure to fit some claws cause dew drops.
For wireless remote controller kit
• For details of installation, refer to the Installation Manual attached to the wireless remote controller kit (sold separately).
For Air purifier kit
• For details of installation, refer to the Installation Manual attached to Air purifier kit (sold separately).
For Occupancy sensor kit
• For details of installation, refer to the Installation Manual attached to Occupancy sensor kit (sold separately).
󲄄This product (Occupancy sensor kit) cannot be used together with the wireless remote controller kit and Air purifier kit.
Delivery to the customer
• After confirmation of the above items, hand a set of this manual, manuals for the indoor unit, manual for products sold
separately to the customer.
• For cleaning of the filter, ask the maintenance professional.
1130605101