Toshiba RBC-U31PG W-E User manual

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EN
• 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 line to a gas pipe, water pipe, lightning conductor, or a telephone earth line.
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.
INSTALLATION MANUAL
Ceiling Panel
MODEL: RBC-U31PG (W)-E, U31PG (WS)-E
RBC-U31PGS (W)-E, U31PGS (WS)-E
Precautions for Safety
Components
Part name Ceiling panel Installation manual
Quantity 11
Shape
REQUIREMENT
Do not apply excessive force to
the louver, as it may cause a
malfunction.
Louver This manual
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EN
Checking Indoor Unit Position
1. Check the position of the indoor unit using the Installation
Manual.
2. Check whether the ceiling opening size falls within a range
of 860 × 860 to 910 × 910.
3. Determine the positional relation between the ceiling and
theindoor unit usingthe installation gauge suppliedwiththe
indoor unit. Improper positioning of the indoor unit may
result in air/water leakage or malfunction of the louver.
• Do not put the ceiling panel facing down or lean it
against a wall, etc. or put it on an object with
projection to avoid scratches on the surface. Handle
the ceiling panel carefully so as not to deform the
movable hooks.
Detaching Air Inlet Grille
1. Slide the knobs of the hooks of the air inlet grille in the
direction of arrow 1, and 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 hinges on the air inlet grille from the ceiling
panel in the direction of arrow 2with the grille open.
Detaching Adjust Corner Caps
1. Pull the knob of the adjust corner cap in the direction of
arrow 1, and detach the adjust corner caps from the four
corners.
• The knob is provided only on one side of the cap. Detach
the adjust corner caps from the knob side.
Checking Panel Fixing Bracket Position
After the adjust corner caps are detached, check that the
panel fixing bracket is open (Fig. 1).
• The ceiling panel cannot be attached to the indoor unit
with the bracket closed (Fig. 2).
1. Preparation for Attaching Ceiling Panel
12 to 17
This clearance must be 12 to 17.
A clearance outside this range may cause malfunction.
Indoor unit
Ceiling Ceiling opening size
Installation gauge
(supplied with the indoor unit)
2. Attaching Ceiling Panel to Indoor Unit
2
Air inlet grille Ceiling panel
Adjust corner cap
Knobs of air inlet grille hooks
Ceiling panel hook hole
Safetystrap
hook
Hinges
Knob
Adjust
corner
cap
Ceiling panel
Adjust corner
cap
Strap
(Fig. 1)
Open
Keep the bracket
open.
(Fig. 2)
Panel fixing
bracket
Open
Closed
Close
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EN
Attaching Ceiling Panel
Do not apply excessive force to the louver when attaching
the ceiling panel, as it may cause malfunction of the louver.
1. Insert the two movable hooks at the inside of the ceiling
panel into the rectangular holes of the indoor unit, and hook
them tentatively onto the indoor unit. (Fig. 1 and Fig. 2)
• The ceiling panel has an orientation to the indoor unit for
installation. Attach the ceiling panel so that the louver
motor wire comes to the electric parts box side.
• To detach the ceiling panel, push the movable hooks
outward while holding the ceiling panel.
2. Lift the corner of the panel inner frame and insert the panel
fixing screw of the indoor unit into the panel fixing bracket
hole (Fig. 3). Then slide the panel fixing bracket in the
direction of arrow and push it to the specified position
(Fig. 4). Repeat this procedure for the four panel fixing
brackets.
• Slide the panel fixing bracket while keeping the screw
head lower than the bracket.
• The panel fixing screws have been attached to the indoor
unit since its shipping.
3. Tighten the four panel fixing screws to secure the ceiling
panel until it comes into close contact with the indoor unit.
(Fig. 5)
4. Check that the ceiling panel is in close contact with the ceiling.
• Make sure that there is no gap between indoor unit and
ceiling panel andbetweenceiling panel and bottom of the
ceiling. (Fig. 6)
CAUTION
Connecting wires of Ceiling Panel
1. Remove thetwo screws of the electricparts box cover, and
detach the electric parts box cover by pressing the hook.
(The electric parts box cover is clamped onto the hinge.)
2. Pass the louver motor wire from the ceiling panel through
the clamper as shown, and connect the wire to the white
20P connector CN510 on the P.C. board of the indoor unit.
•Connect the wire firmly to the connector to ensure
operation of the louver.
3. Attach the electric parts box cover by reversing the
procedure of detaching.
•Make sure that no wire is caught between the electric
parts box and the cover.
•Make sure that no wire is caught between the indoor
unit and the ceiling panel.
(Fig. 1) Drain pipeRectangular holes of
indoor unit
Electric parts box
Refrigerant pipe
Panel fixing screw
Ceiling panel
Marking: Drain pipe side
louver motor wire
Marking: Refrigerant pipe side
Movable hook
(Fig. 3)
Panel inner frame Panel fixing bracket
Hole
(Fig. 2)
Rectangular hole of
indoor unit
Push when releasing
Movable hook
(Fig. 6)
Indoor unit No gap
Bottom of ceiling Ceiling panel
Panel fixing screw
(Fig. 4)
Push the panel fixing bracket
securely.
(Fig. 5)
Tighten the panel fixing screw.
Lift the panel inner frame to make
the screw head visible.
• Insufficienttighteningofthescrews mayresultin the
following problems. Tighten the screws securely. The height of the indoor unit can be
adjusted from the corner holes of the
ceiling panel without detaching the
panel, provided that the levelness of
the indoor unit and the drain pipe are
not affected.
Air leakage
Air leakage
from bottom
of the ceiling
Contamination
Dew drop/water leakage
• If a gap between ceiling panel and
bottom of the ceiling still remains after
the screws are tightened, readjust the
height of the indoor unit.
No gap
After the adjustment of height, tighten
the nuts of the indoor unit securely.
Two screws
Electric parts
box cover
Wire Connection (For illustrative purpose, the
orientation of the indoor unit is not the actual
orientation.)
louver motor wire
Pass the wire through the clamper
as illustrated.
Clamper
CN510
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Attaching Adjust Corner Caps and Air
Inlet Grille
• According to customer requirements, the grille orientation
of the air inlet grilleand the location of the company name
indication on the adjust corner cap can be changed as
shown in the figure (right) for installation of multiple units.
However, the Wireless Remote Controller Kit (separate
sold parts) can be installed only at the diagonal corner of
the drain pipe of the indoor unit. If the Kit is installed at
another location, it may cause malfunction of the Kit.
Attaching adjust corner caps
Hook the strap of the adjust corner cap securely to the pin
of the ceiling panel.
CAUTION
•Press the three claws B of the adjust corner cap
firmly as far as they will go, and then check that the
adjust corner cap is closely attached. Failure to do
so may result in water leakage.
Checks after Installation
• Reconfirm that there is no gap between indoor unit and ceiling panel or between ceiling panel and bottom of ceiling.
* Such gap may result in water leakage or dew drop.
• Confirm that all wires are connected correctly and firmly.
* Otherwise, the louver does not work.
• Confirm that the claws of the adjust corner caps are fitted securely.
* Improper fitting may result in water leakage.
When Using Wireless Remote Controller
• For details of the installation, refer to the Installation Manual supplied with the Wireless Remote Controller Kit (separate sold parts).
Delivery to Customer
• When the installation work has been completed, execute a test run to check for normal operation.
Then explain how to use and maintain the ceiling panel to the customer according to the Owner’s Manual of the indoor
unit.
Ask the customer to keep this installation manual with the Owner’s Manual and Installation Manual of the indoor unit.
Brand name indication given at factory shipping
Adjust corner cap
* Can be attached at any location.
Indoor unit electric parts box
Refrigerant
pipe side
Wireless Remote Controller Kit
(separate sold parts)
* Can be installed only at this
location.
Locations of air inlet grille hook knobs
(attached when the product was shipped)
* These knobs can be attached on any
side of the four sides, but attaching
them on this side is recommended.
Omnidirectional 360°
Drain pipe
side
Attaching air inlet grille
• Attach the air inlet grille by reversing the procedure of its
removal. The air inlet grille of this ceiling panel can be
attached in four patterns by turning the grille. Select the
orientation of the grille for alignment when multiple ceiling
panels are attached or according to customer requirements.
• Attach the air inlet grille so as not to catch the louver
motor wire.
• Be sure to attach the safety strap of the air inlet grille
to the ceiling panel.
Hook hole of ceiling panel
Safety strap
hook
Pin Claws A (insert to fit)
Claws B (press to fit)
Insert the two claws A of the adjust
corner cap into the rectangular holes
of the ceiling panel in the direction of
arrow.
Rectangular
holes Claws A
Press the adjust corner cap so that
the three claws B on the back of the
cap are fitted.
Claws B
Firmly press edges of the
adjust corner cap.
3. Other Descriptions
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