TOSHIBA RAV-HM301U1TP-E Digital Inverter Air Conditioner Instruction Manual
- June 1, 2024
- Toshiba
Table of Contents
TOSHIBA RAV-HM301U1TP-E Digital Inverter Air Conditioner
Specifications
- Product: Air Conditioner (Split Type)
- Model Name: 1-way Cassette type RAV-HM301U1TP-E RAV-HM401U1TP-E
- Intended Use: Commercial
Product Information
- The 1-way Cassette type Air Conditioner is designed for commercial use.
- It comes with a range of accessory parts to facilitate installation and operation. The product ensures effective cooling in indoor spaces.
Product Installation Information
Accessory Parts
- Heat insulating pipe: For heat insulation of pipe connecting section
- Installation pattern: For confirmation of ceiling opening and indoor unit position
- Installation gauge: For positioning of ceiling position
- Washer, Eccentric washer: For hanging-down unit
- Hose band, Flexible hose: For connecting drain pipe
- Heat insulator: For heat insulation of drain connecting section
Selection of Installation Place
- WARNING: Install the air conditioner at a strong enough place to withstand the weight of the unit to prevent accidents.
- CAUTION: Avoid installing in areas with oil, organic solvents, poor ventilation, or where noise can disturb neighbors.
Installation Space Requirements
- Air Conditioner: 500 mm or more
- Ceiling Position: 500 mm or more
- Heat Insulator: 160 mm or more
- Hose Band: 10 mm or more
- Drain Pipe: 1000 mm or more
Advice for High-Humidity Atmosphere
- If installing the unit in a high-humidity area, add insulating material like glass wool to areas in contact with moisture.
FAQ
Frequently Asked Questions
- Q: Can the air conditioner be used for special purposes?
- A: It is not recommended to use the air conditioner for special purposes such as preserving food, precision instruments, or art objects.
- Q: Where can I find additional manuals in different languages?
- A: Additional manuals in various languages can be accessed by scanning the QR code provided in the user manual or visiting the official website.
“`
Installation dimensions
CAUTION
Strictly comply with the following rules to prevent damage of the indoor units and human injury. y Do not put a heavy article on the indoor unit. (Even units are packaged) y Carry in the indoor unit as it is packaged if possible. If carrying in the indoor unit unpacked by necessity, be sure to use buffering cloth, etc. to not damage the unit. y To move the indoor unit, hold the hooking metals (4 positions) only.
Do not apply force to the other parts (refrigerant pipe, drain pan, foamed parts, or resin parts, etc.). y Carry the package by two or more persons, and do not bundle it with plastic band at positions other than specified. To install vibration isolation material to hanging bolts. Confirm that it dose not increase the unit vibration.
External dimensions
(Unit: mm)
110 105
Take-in port of wires
1220 Panel external dimension 1190 Ceiling opening dimension
1080 Hanging bolt pitch
Electrical control box
Ceiling bottom surface
384 Hanging bolt pitch 500 Ceiling opening dimension 530 Panel external
dimension
450 Unit external dimension
90 200
Refrigerant pipe connecting port (Gas Ø9.52)
Refrigerant pipe connecting port (Liquid Ø6.35)
Drain pipe connecting port
102 147
Hanging bolt M10 or Ø3/8 (Locally procured) 60
70
990 Unit external dimension
118 150
Ceiling bottom surface Ceiling panel (sold separately)
3
Opening a ceiling and installation of hanging bolts
y Consider the piping / wiring after the unit is hung when determining the
location of the indoor unit installation and orientation.
y After the location of the indoor unit installation has been determined, open
the ceiling and install hanging bolts.
y The dimensions of the ceiling opening and hanging bolt pitches are given in
the outline drawing and the attached installation pattern.
y When a ceiling already exists, lay the drain pipe, refrigerant pipe, indoor
unit / outdoor unit connection wires, and remote controller wires to their
connection locations before hanging the indoor unit.
Procure hanging bolts and nuts for installing the indoor unit (these are not
supplied).
Hanging bolt Nut
M10 or W3/8 M10 or W3/8
4 pieces 12 pieces
Using the installation pattern (accessory)
The installation pattern is provided inside the packaging cap.
Treatment of ceiling
The ceiling differs according to structure of building. For details, consult
your constructor or interior ¿nish contractor. In the process after the
ceiling board has been removed, it is important to reinforce ceiling
foundation (frame) and to keep horizontal level of installed ceiling correctly
in order to prevent vibration of ceiling board. 1. Cut and remove the ceiling
foundation. 2. Reinforce the cut surface of ceiling foundation, and
add ceiling foundation for ¿xing the end of ceiling board.
Installation of hanging bolt
Use M10 hanging bolts (4 pcs, locally procured). Matching to the existing structure, set pitch according to size in the unit external view as shown below.
New concrete slab
Install the bolts with insert brackets or anchor bolts.
(Blade type (Slide type
bracket)
bracket)
Rubber
Anchor bolt (Pipe hanging anchor bolt)
Steel frame structure Use existing angles or install new support angles.
Hanging bolt
Hanging bolt
Support angle
Existing concrete slab Use a hole-in anchors, hole-in plugs, or a hole-in bolts.
30 50 to 100 Hanging bolt level
Indoor unit
Panel ¿xing screw
5-EN
Hole
Installation pattern (Accessory)
6-EN
Installation of ceiling opening and hanging bolt
Hanging bolt
Indoor unit
Hanging bolt
Level vial (levelness: 5 mm or less)
30 mm
Hanging bracket
20 mm
18 mm 20 mm
Level vial
Hanging bracket
y Attach a nut (M10 or W3/8: not supplied) and the Ø34 washer (supplied) to
each hanging bolt.
y Insert a washer on both sides of the T groove of the hanging bracket of the
indoor unit, and hang the indoor unit.
y Check that the four sides of the indoor unit are level using a level vial
(levelness: 5 mm or less).
y Detach the installation gauge (accessory) from the installation pattern.
y Using the installation gauge, check and adjust the positional relation
between the indoor unit and the ceiling opening. (How to use the installation
gauge is printed on the gauge.)
Hanging bolt (M10 or W3/8)
Nut (M10 or W3/8)
Eccentric washer (Accessory) * Install with the
marking “UP” facing up.
- Procure hanging bolts and nuts locally.
Washer (Accessory) To prevent the bolt from falling off (for safety), be sure to set it just under the hanging bracket as shown in the ¿gure.
Nut (M10 or W3/8)
Installation gauge (Outlet side)
Ceiling board
Installation gauge (Inlet side)
Installation of ceiling panel (Sold separately)
Install the ceiling panel according to Installation Manual attached with it
after piping / wiring work has completed. Check that installation of indoor
unit and ceiling opening part is correct, and then install it.
REQUIREMENT
y Joint the connecting sections of ceiling panel, ceiling surface, ceiling
panel and indoor unit closely. Any gap between them will cause air leakage and
the generate condensation or water leakage.
y Remove the adjust corner caps at the four corners of the ceiling panel, and
then install the ceiling panel onto the indoor unit.
y Make sure that the claws of the four adjust corner caps are securely ¿t. *
Improper ¿tting of the claws may cause water leakage.
Wireless type (Sold separately)
The sensor of indoor unit with wireless remote controller can receive a signal
by distance within approx. 7 m. Based upon it, determine a place where the
remote controller is operated and the installation place. y Operate the remote
controller, con¿rm that the
indoor unit receives a signal surely, and then install it. y Keep 1 m or more
from the devices such as
television, stereo, etc. (Disturbance of image or noise may generate.) y To
prevent a malfunction, select a place where is not inÀuenced by a Àuorescent
light or direct sunlight. y Two or more (Up to 6 units) indoor units with
wireless type remote controller can be installed in the same room.
Signal receiving unit
Installation of remote
controller (Sold separately)
7 m
For installation of the wired remote controller, follow the Installation
Manual attached with the remote controller. y Pull out the remote controller
cord together with the
refrigerant pipe or drain pipe. Be sure to pass the remote controller cord
through upper side of the refrigerant pipe and drain pipe. y Do not leave the
remote controller at a place exposed to the direct sunlight and near a stove.
EENN
7-EN
4
8-EN
Drain piping
CAUTION
Following the Installation Manual, perform the drain piping work so that water
is properly drained, and apply a heat insulation so as not to cause a dew
dropping. Inappropriate piping work may result in water leakage in the room
and wet of furniture.
Piping / Heat insulating material
Require the following materials for piping and heat insulating at site.
Piping Heat insulator
Hard vinyl chloride pipe VP25 (Outer dia. : Ø32 mm)
Foam polyethylene : Thickness 10 mm or more
Flexible hose
Use the attached Àexible hose to adjust centre discrepancy of the hard vinyl
chloride pipe or to adjust
the angle. y Do not use the Àexible hose as stretched, or do not
deform it more extent than that in the following ¿gure. y Be sure to ¿x the
soft end of the Àexible hose with
the attached hose band. y Use the Àexible hose on a horizontal level.
OK
NO GOOD
Riser (Trap)
max 45°
90° Bend
max 45°
REQUIREMENT
y Be sure to perform heat insulation of the drain pipes of the indoor unit.
y Never forget to perform heat insulation of the connecting part with the
indoor unit. An incomplete heat insulation causes dew dropping.
y Set the drain pipe with downward slope (1/100 or more), and do not make
swelling or trap on the piping. It may cause an abnormal sound.
1.5 m to 2 m Support bracket
92-1E-ENN
1/100 or more Heat insulator downward
5
y For length of the traversing drain pipe, restrict to 20 m or less. In case
of a long pipe, provide support brackets with interval of 1.5 to 2 m in order
to prevent waving.
Arched shape NO
GOOD
Trap
y Set the collective piping as shown in the below
¿gure.
As long as possible (10 cm)
VP25
VP25
VP25
VP30 or more
Downward slope 1/100 or more
y Be sure not to apply force to the connecting part of the drain pipe.
y The hard vinyl-chloride pipe cannot be directly connected to the drain pipe
connecting port of the indoor unit. For connection with the drain pipe
connecting port, be sure to use / ¿x the attached Àexible hose with the hose
band, otherwise a damage or water leak is caused on the drain pipe connecting
port.
Drain pipe connecting port (Hard socket)
Attached hose band
VP25 vinyl chloride pipe (Locally procured)
Attached Àexible hose
Connecting drain pipe
y Connect a hard socket (locally procured) to the hard socket of the attached
supplied Àexible hose.
y Connect a drain pipe (locally procured) to the connected hard socket.
REQUIREMENT
y Connect hard vinyl chloride pipes securely using an adhesive for vinyl
chloride to avoid water leakage.
y It takes some time until the adhesive is dried and hardened (refer to the
manual of the adhesive). Do not apply stress to the joint with the drain pipe
during this time period.
Drain up
When a down-gradient cannot be secured for the drain pipe, drain-up piping is
possible. y The height of the drain pipe must be 500 mm or less
from the bottom of the ceiling. y Take the drain pipe out of the drain pipe
joint with the
indoor unit in 300 mm or less, and bend up the pipe vertically. y Immediately
after the pipe is bent up vertically, lay the pipe making a down-gradient. y
Set downward grading immediately after raising up vertically.
Check the draining
In the test run, check that the water drain is properly performed and water
does not leak from the connecting part of the pipes. Be sure to check draining
also when installed in heating period. Using a pitcher or hose, pour water
(1500 to 2000 cc) into the suction port before installation of the ceiling
panel. Pour water gradually so that water does not spread on the motor of the
drain pump.
CAUTION
Pour water gently so that it does not spread around inside the indoor unit,
which may cause a malfunction.
Power supply wiring
Heat exchanger Drain pan
Rising up 390 mm or less Rising up 500 mm or less
Indoor unit
Soft socket
Socket for VP25 (Locally procured)
Hard socket
Adhesive inhibited : Use the attached Àexible hose and hose band for
connecting the drain hose to the clear drain socket.
If applying the adhesive, socket will be damaged and
cause water leakage.
5 mm or less
Drain pipe connecting port (Transparent)
10 to 12 mm
hose band tightening margin
10 mm
VP25 vinyl chloride pipe (Locally procured)
Indoor unit
Heat
Flexible hose
insulator (Accessory)
Socket for VP25 vinyl chloride pipe (Locally procured)
Indoor unit
300 mm or less
Underside of ceiling
Float switch connector (3P) (CN34: red)
Tool for pouring water
Bottle
Insert the hose end between the heat exchanger and the drain pan, and then bend the hose downward.
Water (1500 cc to 2000 cc)
y After the electric work has ¿nished, pour water during COOL mode operation.
y If the electric work has not yet ¿nished, pull out the Àoat switch connector
(CN34: Red) from the electrical control box, and check draining by plugging
the single phase 220-240V power to the terminal blocks 1 and 2.
If doing so, the drain pump motor operates. (Never apply 220-240V to A or B,
otherwise a
trouble of P.C. board occurs.)
2120-EN
y Test water drain while checking the operation sound of the drain pump motor. (If the operation sound changes from continuous sound to intermittent sound, water is normally drained.) After the check, the drain pump motor runs, connecting the Àoat switch connector. (In case of check by pulling out the Àoat switch connector, be sure to return the connector to the original position.)
CN34 (RED)
Power terminals
Black
Single phase 220-240V
12
White
Red
Pull out connector CN34 (Red) from P.C. board.
Black
Heat insulating
y As shown in the ¿gure, cover the Àexible hose and hose band with the
attached heat insulator up to the bottom of the indoor unit without gap.
y Cover the drain pipe seamlessly with a heat insulator locally procured so
that it overlaps with the attached heat insulator of the drain connecting
section.
Wrap the attached heat insulator seamlessly from the surface of the indoor unit.
Heat insulator of the drain connecting section (Accessory)
Heat insulator (Locally procured)
Indoor unit
- Direct the slits and seams of the heat insulator upward to avoid water leakage.
11-EN
Refrigerant piping
CAUTION
When the refrigerant pipe is long, provide support brackets at intervals of
2.5 m to 3 m to clamp the refrigerant pipe. Otherwise, abnormal sound may be
generated.
Projection margin in Àaring: B (Unit: mm)
Outer dia. of copper pipe
6.4, 9.5
Tool used 0 to 0.5
Conventional tool used
1.0 to 1.5
Permissible piping length and height difference
They vary depending on the outdoor unit. For details, refer to the
Installation Manual attached to the outdoor unit.
CAUTION
IMPORTANT 4 POINTS FOR PIPING WORK 1. Reusable mechanical connectors and Àared
joints are not allowed indoors. When mechanical connectors are reused indoors,
sealing parts shall be renewed. When Àared joints are reused indoors, the Àare
part shall be refabricated. 2. Tight connection (between pipes and unit) 3.
Evacuate the air in the connecting pipes using VACUUM PUMP. 4. Check the gas
leakage. (Connected points)
Pipe size
Flaring diameter size: A (Unit: mm)
Outer dia. of copper pipe 6.4 9.5
A
+0 0.4
9.1
13.2
Pipe size (mm)
Gas side
Liquid side
Ø9.5
Ø6.4
Connecting refrigerant piping
Flaring
y Cut the pipe with a pipe cutter. Remove burrs completely. Remaining burrs
may cause gas leakage.
y Insert a Àare nut into the pipe, and Àare the pipe. As the Àaring sizes of
R32 differ from those of refrigerant R22, the Àare tools newly manufactured
for R32 are recommended. However, the conventional tools can be used by
adjusting projection margin of the copper pipe.
CAUTION
y Do not scratch the inner surface of the Àared part when removing burrs.
y Flare processing under the condition of scratches on the inner surface of
Àare processing part will cause refrigerant gas leak.
y Check that the Àared part is not scratched, deformed, stepped, or Àattened,
and that there are no chips adhered or other problems, after Àare processing.
y Do not apply refrigerating machine oil to the Àare surface.
EENN
6
12-EN
7
- In case of Àaring with the conventional Àare tool, pull it out approx. 0.5 mm more than that for R22 to djust to the speci¿ed Àare size. The copper pipe gauge is useful for adjusting projection margin size.
· The sealed gas was sealed at the atmospheric pressure so when the Àare nut is removed, there will no “whooshing” sound: This is normal and is not indicative of trouble.
· Use two wrenches to connect the indoor unit pipe.
Evacuation
Perform vacuuming from the charge port of valve of the outdoor unit by using a
vacuum pump. For details, follow to the Installation Manual attached to the
outdoor unit. y Do not use the refrigerant sealed in the outdoor unit
for evacuation.
REQUIREMENT
For the tools such as charge hose, etc., use those manufactured exclusively
for R32.
Work using double spanner
y Use the tightening torque levels as listed in the following table.
Outer dia. of connecting pipe (mm)
6.4
9.5
Tightening torque (N·m) 14 to 18 (1.4 to 1.8 kgf·m) 34 to 42 (3.4 to 4.2 kgf·m)
T Tightening torque of flare pipe connections
Incorrect connections may cause not only a gas leak, but also a trouble of the
refrigeration cycle. Align the centres of the connecting pipes and tighten the
Àare nut as far as possible with your ¿ngers. Then tighten the nut with a
spanner and torque wrench as shown in the ¿gure.
CAUTION
Tightening with an excessive torque may crack the nut depending on
installation conditions.
Refrigerant amount to be added
For addition of the refrigerant, add refrigerant “R32” referring to the
attached Installation Manual of outdoor unit. Use a scale to charge the
refrigerant of speci¿ed amount.
REQUIREMENT
y Charging an excessive or too little amount of refrigerant causes a trouble
of the compressor. Charge the refrigerant of speci¿ed amount.
y A personnel who charged the refrigerant should write down the pipe length
and the added refrigerant amount in the F-GAS label of the outdoor unit. It is
necessary to ¿x the compressor and refrigeration cycle malfunction.
Open the valve fully
Open the valve of the outdoor unit fully. A 4 mm-hexagonal wrench is required
for opening the valve. For details, refer to the Installation Manual attached
to the outdoor unit.
Gas leak check
Check with a leak detector or soap water whether gas leaks or not, from the
pipe connecting section or cap of the valve.
Heat insulation process
Apply heat insulation for the pipes separately at liquid side and gas side. y
For the heat insulation to the pipes at gas side, be sure to use the material
with heat-resisting temperature
120°C or higher. y To use the attached heat insulation pipe, apply the heat
insulation to the pipe connecting section of the
indoor unit securely without gap.
REQUIREMENT
y Apply the heat insulation to the pipe connecting section of the indoor unit
securely up to the root without exposure of the pipe. (The pipe exposed to the
outside causes water leak.)
y Wrap heat insulator with its slits facing up (ceiling side).
Indoor unit
Wrap the pipe with the attached heat insulator without any gap between the
indoor unit.
The seam must be faced upward (ceiling side).
Flare nut
Heat insulation pipe (Accessory)
Union
Heat insulator of the pipe
Banding band (Locally procured)
REQUIREMENT
Use a leak detector manufactured exclusively for HFC refrigerant (R32, R134a,
R410A, etc.).
13-EN
14-EN
Electrical connection
WARNING
· Use the speci¿ed wires for wiring connect the terminals. Securely ¿x them to
prevent external forces applied to the terminals from affecting the terminals.
Incomplete connection or ¿xation may cause a ¿re or other trouble.
· Connect earth wire. (grounding work) Incomplete earthing cause an electric
shock. Do not connect earth wires to gas pipes, water pipes, lightning
conductor or telephone earth wires.
· Appliance shall be installed in accordance with national wiring regulations.
Capacity shortage of power circuit or incomplete installation may cause an
electric shock or a ¿re.
· Under no circumstances, the power supply wire or the indoor and outdoor
connecting wire must not be connected in the middle (Connection using a
solderless terminal etc.) Connection trouble in the places where the wire is
connected in the middle may give rise to smoking and/or a ¿re.
CAUTION
· For power supply speci¿cations, follow the Installation Manual of outdoor
unit. · Do not connect 220 240V power to the terminal blocks ( A , B ) for
control wiring.
Otherwise, the system will fail. · Do not damage or scratch the conductive
core and inner insulator of power and system interconnection wires
during peeling them. · Perform the electric wiring so that it does not come to
contact with the high-temperature part of the pipe.
The coating may melt resulting in an accident.
· Do not turn on the power of the indoor unit until vacuuming of the
refrigerant pipes completes.
Wiring speci¿cations
Indoor / Outdoor connecting wires speci¿cations
Indoor unit power supplied from outdoor unit · The outdoor unit power supply
patterns vary on models.
Indoor unit power supply
1~50 Hz 1~60 Hz
220 – 240V 220V
Indoor / Outdoor connecting wires
Number of wire x wire size *Including earth line
Remote controller wiring
4 × 1.5 mm² or more (H07 RN-F or 60245 IEC 66)*
Up to 70 m
Remote controller wiring, remote controller inter-unit wiring
Wire size: 2 × 0.5 to 2.0 mm2
Total wire length of remote controller wiring and remote controller inter-unit wiring = L + L1 + L2 + … Ln
In case of wired type only 2 remote controllers In case of wireless type included
Up to 500 m Up to 300 m Up to 400 m
Total wire length of remote controller inter-unit wiring = L1 + L2 + … Ln
Up to 200 m
- The remote controller wiring length differs depending on the remote controller used. For details, refer to the Installation Manual attached to the remote controller.
CAUTION
The remote controller wire and Indoor / Outdoor connecting wires cannot be parallel to contact each other and cannot be stored in the same conduits. If doing so, a trouble may be caused on the control system due to noise or other factor.
Communication type
TU2C-Link can be used with these models. If the indoor unit and the connected remote controller / remote sensor are all TU2C-Link models, TU2C-Link communication will be performed automatically. (If the TCC-Link model is included, TCC-Link communication will be performed.) For details of communication type, refer to the following table.
Communication type and model names
Communication type
TU2C-Link
Indoor unit
RAV-HM½½½ series model
Wired remote controller
RBC-A½½U½½½ This letter indicates U series model.
Wireless remote controller kit & receiver unit
RBC-AXU½½½ This letter indicates U series model.
Remote sensor
TCB-TC½½U½½½ This letter indicates U series model.
TCC-Link Other than RAV-HM½½½ series Other than U series
Other than U series
Other than U series
CAUTION
When connecting to the central control device dedicated to TCC-Link, it is
necessary to change to TCC-Link using a wired remote controller. Set according
to the Communication type procedure of “8 Applicable controls”.
Remote controller wiring
Indoor unit
L
Remote controller
Indoor unit
Indoor unit
Indoor unit
L1
L2
Remote controller inter-unit wiring
Ln
For number of Max. connectable units, refer to the following table.
Max. number of connect-able indoor units, and communication type
Unit type
Indoor unit
RAV-HM½½½
RAV-HM½½½
½
½
Remote controller Remote sensor
U series
½
U series
½
Communication type
TU2C-Link
TCC-Link
Max. number of connect-able units
16
8
½ : Other than RAV-HM½½½ and U series
EENN
15-EN
8
16-EN
Wiring between indoor unit and outdoor unit
1. Figure below shows the wiring connections between the indoor and outdoor
units and between the indoor units and remote controller. The wires indicated
by the broken lines or dot-and-dash lines are provided at the locally.
2. Refer to the both indoor and outdoor unit wiring diagrams. 3. The power of
the indoor unit is supplied from the outdoor unit.
Wiring diagram
Single system
Remote controller Remote controller wiring
Simultaneous twin system
Remote controller Remote controller wiring
Remote controller inter-unit wiring
Indoor side
Indoor / Outdoor connecting wires
Outdoor side
AB 123
123 Power supply
Indoor side
Indoor / Outdoor connecting wires
Outdoor side
AB 123
123 Power supply
Indoor side
AB 123
Indoor power inter-unit wiring
- Use 2-core shield wire (MVVS 0.5 to 2.0 mm² or more) for the remote controller wiring in the simultaneous twin systems to prevent noise problems. Connect both ends of the shield wire to earth leads.
- Connect earth wires for each indoor unit in the simultaneous twin systems.
9
Wire connection
REQUIREMENT
y Be sure to connect the wires matching the terminal numbers. Incorrect
connection causes a trouble. y Be sure to pass the wires through the bushing
of wiring connection port of the indoor unit. y Keep a margin (Approx. 100 mm)
on a wire to hang down the electrical control box at servicing, etc. y The
low-voltage circuit is provided for the remote controller. (Do not connect the
high-voltage circuit) y Make a loop on the wire for margin of the length so
that the electrical control box can be taken out during
servicing.
1. Remove the cover of the electrical control box by taking off the mounting
screws and pushing the hooking section. (The cover of the electrical control
box remains hanged to the hinge.)
2. Connect the power supply wire and remote controller wire to the terminal
block of the electrical control box. 3. Tighten the screws of the terminal
block, and ¿x the wires with cord clamp attached to the electrical control
box.
(Do not apply tension to the connecting section of the terminal block.) 4.
Mount the cover of the electrical control box without pinching wires.
(Mount the cover after wiring on the ceiling panel.)
Louver connector (CN510:White)
Cord clamp
Remote controller terminal block
A B
Hinge 123
Screw
60 10
10 40
Earth wire Power supply wire
123
Power supply terminal block
Side D (Space: 8.5 mm) Side C (Space: 4 mm)
- Cable clamp can be attached on left side.
Wire type
Cabtyre cable
Cabtyre cable
Speci¿cation
Cable clamping position
4-core stranded wire 2.5 mm²
Side D
4-core stranded wire 1.5 mm²
Side C
17-EN
18-EN
Remote controller wiring
Strip off approx. 9 mm the wire to be connected.
Wiring diagram
Terminal block for remote controller wiring of indoor unit
Remote controller wire (Locally procured)
Terminal block
Remote controller unit
Wiring on the ceiling panel
According to the Installation Manual of the ceiling panel, connect the
connector (20P: White) of the ceiling panel to the connector (CN510: White) on
P.C. bwoard of the electrical control box.
Applicable controls
· For using the wired remote controller RBC-AMS55E½, refer to the Owner’s Manual attached to the wired remote controller.
Applicable controls setup (settings at the site)
REQUIREMENT
· When you use this air conditioner for the ¿rst time, it takes approx. 5
minutes until the remote controller becomes available after power-on. This is
normal. <When power is turned on for the ¿rst time after installation> It
takes approx. 5 minutes until the remote controller becomes available.
Power on
“SETTING” Àashes
Approx. 5 minutes
“SETTING” goes out
Remote controller is available
<When power is turned on for the second (or later) time> It takes approx. 1 minute until the remote controller becomes available.
Power on
“SETTING” Àashes
Approx. 5 minutes
“SETTING” goes out
Remote controller is available
· Normal settings were made when the indoor unit was shipped from factory.
Change the indoor unit settings as required.
· Use the wired remote controller to change the settings. * The settings
cannot be changed using the wireless remote controller, sub remote controller,
or remote controllerless system (for central remote controller only).
Therefore, install the wired remote controller to change the settings.
Remote controller model name: RBC-ASCU1½
Basic procedure
Be sure to stop the air conditioner before making settings. (Change the setup
while the air conditioner is not working.)
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 Push and hold menu button and [ ] setting button simultaneously for 10
seconds or more. y After a while, the display Àashes as shown in the
¿gure. “ALL” is displayed as indoor unit numbers during initial communication
immediately after the power has been turned on.
19-EN
10
Indoor UNIT No.
EENN
20-EN
11
2 Each time [ ] [ ] setting button is
pushed, indoor unit numbers in the group control change cyclically. Select the
indoor unit to change settings for. · The fan of the selected indoor unit runs
and the
louvers start swinging. The indoor unit can be con¿rmed for which to change
settings.
3 Push OFF timer button to con¿rm the
selected indoor unit.
Code No.
Set data
4 Push the menu button to make Code No.
[ ] Àash. Change Code No. [ ] with [ ] [ ] setting button.
5 Push the menu button to make Set data
[
] Àash. Change Set data [
]
with [ ] [ ] setting button.
6 Push OFF timer button to complete the set
up. y To change other settings of the selected
indoor unit, repeat from Procedure 4.
7 When all the settings have been completed,
push ON/OFF button to ¿nish the settings.
(Return to the normal mode)
”
” Àashes and then the display content
disappears and the air conditioner enters the
normal stop mode. (The remote controller is
unavailable while ”
” is Àashing.)
· To change settings of another indoor unit, repeat
from Procedure 1.
To secure better effect of heating
When it is dif¿cult to obtain satisfactory heating due to installation place
of the indoor unit or structure of the room, the detection temperature of
heating can be raised. Also use a circulator or other machinery to circulate
heat air near the ceiling. Follow to the basic operation procedure
(1 2 3 4 5 6 7). y Specify [06] for the Code No. in Procedure 4.
y For the Set data in Procedure 5, select the Set data
of shift value of detection temperature to be set up from the following table.
Set data 0000 0001
0002
0003 0004 0005 0006
Detection temperature shift value No shift +1°C +2°C
(Factory default) +3°C +4°C +5°C +6°C
Filter sign setting
According to the installation condition, the ¿lter sign term (Noti¿cation of ¿lter cleaning) can be changed.
Follow to the basic operation procedure
(1 2 3 4 5 6 7). y Specify [01] for the Code No. in Procedure 4. y For the Set
data in Procedure 5, select the Set data
of ¿lter sign term from the following table.
Set data 0000 0001
0002
0003 0004
Filter sign term None 150 H 2500 H
(Factory default) 5000 H 10000 H
· The ¿lter sign may be unavailable depending on the remote controllers.
2313-EN
Remote controller sensor
The temperature sensor of the indoor unit senses room temperature usually. Set
the remote controller sensor to sense the temperature around the remote
controller. Select items following the basic operation procedure
(1 2 3 4 5 6 7). y Specify [32] for the Code No. in Procedur 4.
y Select the following data for the Set data in
Procedure 5.
Set data 0000 0001
Remote controller sensor Not in use (Factory default)
In use
When Àashes, the remote controller sensor is defective. Select the Set data [0000] (not in use) or replace the remote controller.
Communication type
When connecting to the central control device dedicated to TCC-Link, it is
necessary to change to TCC-Link.
Follow to the basic opreration procedure
(1 2 3 4 5 6 7). y Specify [FC] for the Code No. in Procedure 4.
y Select the Set data [0000] (TCC-Link) in Procedure
5.
Set data 0000 0004
Communication type TCC-Link
TU2C-Link (Factory default)
Fan speed setting when thermostat-OFF in cooling mode
Set the fan speed when the room temperature reaches the set temperature in the
cooling mode.
Follow to the basic opreration procedure
(1 2 3 4 5 6 7). y Specify [9A] for the Code No. in Procedure 4.
y Select the following data for the Set data in
Procedure 5.
Set data 0000 0001
Fan speed when thermostat-OFF in cooling mode
Remote controller setting
Extremely low speed (UL) (Factory default)
8°C operation
Pre-heating operation can be set for cold regions where room temperature drops to below zero.
Follow to the basic opreration procedure
(1 2 3 4 5 6 7). y Specify [d1] for the Code No. in Procedure 4.
y Select the following data for the Set data in
Procedure 5.
Set data 0000 0001
8°C Operation setting None (Factory default) 8°C Operation setting
Installing optional parts
When installing optional parts, data setup may be required with remote controller. Be sure to set the data, according to Installation Manual for optional parts.
Information
The following functions require a connection with the RBC-AMTU½½½ and RBC- AMSU½½½ remote controller. For details, refer to the manual included with the remote controller. · Individual unit selection during group operation · Individual setting of louver position (wind direction) · Swing type setting · Louver lock (no swing) setting · Energy saving operation (Power saving operation) · Noti¿cation of ¿lter cleaning time
Others
The following functions can be used with this model. Refer to the Service Manual for more information. · Rotation / backup operation · Free cooling · Secondary heating · Power shift
3242-EN
Group control
Simultaneous twin system
A combination with an outdoor unit allows simultaneous ON / OFF operation of
the indoor units. The following system patterns are available. – Two indoor
units for the twin system
T Twin system
Outdoor unit Indoor unit
Indoor unit
Remote controller
Finish of address setup by power-ON
· For wiring procedure and wiring method, follow to the “Electrical
connection” in this manual. · When the power supply has been turned on, the
automatic address setup starts and which indicates that address
is being set up flashes on the display part. During setup of automatic
address, the remote controller operation is not accepted. Required time up to
the finish of automatic addressing is approx. 5 minutes.
Group control for system of multiple units
One group can control up to 16 (TU2C-Link) or 8 (TCC-Link) indoor units with
one remote controller. (Refer to the Wiring speci¿cations)
T Group control in single system
Outdoor unit Indoor unit
Outdoor unit Indoor unit
Outdoor unit Indoor unit
Outdoor unit Indoor unit
Outdoor unit Indoor unit
Remote controller Finish of address setup by power-ON
· For wiring procedure and wiring method of the individual line (Identical
refrigerant line) system, follow to “Electrical connection”.
· Wiring between lines is performed in the following procedure. · Connect the
terminal block (A/B) of the indoor unit connected with a remote controller to
the terminal blocks
(A/B) of the indoor units of other indoor units by wiring the inter-unit wire
of the remote controller. · When the power supply has been turned on, the
automatic address setup starts and which indicates that
address is being set up flashes on the display part in about 3 minutes. During
setup of automatic address, the remote controller operation is not accepted.
Required time up to the finish of automatic addressing is approx. 5 minutes.
NOTE
In some cases, it is necessary to change the address manually after setup of
the automatic address according to the system con¿guration of the group
control. · The follow mentioned system con¿guration is a case when complex
systems in which systems of the
simultaneous twin unit is controlled as a group by a remote controller.
(Example) Group control for complex system
Line system
Procedure example 1
Indoor unit (Example of random setup)
After setup of automatic address
Outdoor unit Indoor unit
Address: 1-1-2
Outdoor unit Indoor unit
Address: 2-1-2
Indoor unit Address: 3-3-1
Line address
Group address
Indoor address
(Example of address setup change)
After setup change of manual address
Address: 1-1-1 Address: 2-1-2
Address: 2-2-2
The above address is set by the automatic addressing when the power is turned
on. However, line addresses and indoor addresses are set randomly. For this
reason, change the setting to match line addresses with indoor addresses.
Group control
1 Push and hold menu button and [ ] setting button simultaneously for 10 seconds or more. 2 Push OFF timer button to con¿rm the selected indoor unit.
EN EN
23-EN
12
24-EN
To ¿nd an indoor unit’s position from its address
1 Push and hold menu button and [ ] setting button simultaneously for 10
seconds or more.
(E.g.) A unit number 1-1 is indicated on the LCD of the remote controller. The
indicated number shows the line (system) address and indoor unit address of
the unit.
2 When 2 or more indoor units are connected to the remote controller (group-
controlled units), a number of
other connected units appears each time you push the [ ] [ ] buttons.
3 Push the ON/OFF button, return to the normal mode.
Test run
Before test run
y Before turning on the power supply, carry out the following procedure. 1) By
using 500V-megger, check that resistance of 1M or more exists between the
terminal block 1 to 3 and the earth (grounding). If resistance of less than 1M
is detected, do not run the unit. 2) Check the valve of the outdoor unit being
opened fully.
y To protect the compressor at activation time, leave power-ON for 12 hours or
more before operating.
Execute a test run
Operate the unit with the wired remote controller as usual. For the procedure of the operation, refer to the attached Owner’s Manual. A forced test run can be executed in the following procedure even if the operation stops by thermostat-OFF. In order to prevent a serial operation, the forced test run is released after 60 minutes have passed and returns to the usual operation.
Wired remote controller
Be sure to stop the air conditioner before making settings. (Change the setup while the air conditioner is not working.)
4
3
3
1
2
1 Push and hold OFF timer button and [ ] setting button simultaneously for 10 seconds or more. [TEST] is displayed on the display part and the test run is permitted.
CAUTION
Do not use the forced test run for cases other than the test run because it
applies an excessive load to the devices.
2 Push ON/OFF button.
3 Push menu button to select the operation
mode. Select [ Cool] or [ Heat] with [ ] [ ] setting button. · Do not run the
air conditioner in a mode other
than [Cool] or [Heat]. · The temperature setting function does not work
during test run. · The check code is displayed as usual.
4 After the test run, push OFF timer button to
stop a test run. ([TEST] disappears on the display and the air conditioner
enters the normal stop mode.)
2357-EN
3286-EN
Wireless remote controller
Remote controller model name: RBC-AXU41U½
1 Turn on the power of the air conditioner.
When power is turned on for the ¿rst time after installation, it takes approx.
5 minutes until the remote controller becomes available. In the case of
subsequent poweron, it takes approx. 1 minute until the remote controller
becomes available. Execute a test run after the predetermined time has passed.
2 Push “ON/OFF” button on the remote
controller, select [ Cool] or [ Heat] with “MODE” button, and then select
[HIGH] with “FAN” button.
3
Cooling test run
Set the temperature to 17°C with the temp. setup buttons.
Heating test run
Set the temperature to 30°C with the temp. setup buttons.
4
Cooling test run
After con¿rming a signal receiving sound “beep” immediately set the
temperature to 18°C with the temp. setup buttons.
Heating test run
After con¿rming a signal receiving sound “beep” immediately set the
temperature to 29°C with the temp. setup buttons.
5
Cooling test run
After con¿rming a signal receiving sound “beep” immediately set the
temperature to 17°C with the temp. setup buttons.
Heating test run
After con¿rming a signal receiving sound “beep” immediately set the
temperature to 30°C with the temp. setup buttons.
6 Repeat procedures 4 5 4 5.
Indicators “Operation” (green), “Timer” (green), and “Ready” (orange) in the
wireless receiver section Àash in approx. 10 seconds, and the air conditioner
starts operation. If any of these indicators does not Àash, repeat procedures
2 to 5.
7 Upon completion of the test run, push
“ON/OFF” button to stop operation.
Monitoring function
This function can be used to call the service monitor mode from the remote
controller during a test run to obtain the temperature of the sensors of the
remote controller, indoor unit, and outdoor unit.
1 3 2, 4 5
1, 2
Monitoring function” display
Indoor unit number
4
Data
1 Push and hold menu button for 10 seconds or
more. “Monitoring function” is displayed on a screen.
2 Every pushing [ ] [ ] buttons, the indoor unit
numbers in group control are displayed successively.
3 Push OFF timer button to con¿rm the selected
indoor unit.
4 Every pushing [ ] [ ] buttons, Code No. of the
item is changed successively.
5 After you have ¿nished checking, push “ON/OFF”
button, return to normal mode.
Code No. 01 02 03
04 07 B9
F3 F8
Indoor unit data
Data name
Room temperature (remote controller)
Indoor unit intake air temperature (TA)
Indoor unit heat exchanger (coil) temperature (TCJ)
Indoor unit heat exchanger (coil) temperature (TC)
Indoor unit fan speed (×1 rpm)
Communication protocol (0000: TCC-Link, 0001: TU2C-Link)
Indoor unit fan cumulative operating hours (×1 h)
Indoor unit discharge air temperature *1
Code No. 60 61 62 63 65 6A 6D
F1
Outdoor unit data *2 Data name
Outdoor unit heat exchanger (coil) temperature (TE)
Outside air temperature (TO) Compressor discharge temperature (TD)
Compressor suction temperature (TS) Heatsink temperature (THS) Operating
current (×1/10) Outdoor heat exchange (coil) temperature (TL)
Compressor cumulative operating hours (×100 h)
1 : The above temperature values are estimated from the temperature of the heat exchanger. It may differ from the actual discharge temperature.
2 : For outdoor unit data, refer to the Installation Manual and Service Manual of the outdoor unit.
EENN
27-EN
14
28-EN
Wireless remote controller (RBC-AX33UYP-E)
Test run (forced cooling operation)
REQUIREMENT Finish the forced cooling operation in a short time because it
applies excessive strength to the air conditioner. T How to perform forced
cooling operation
1 When TEMPORARY button is pushed for
10 seconds or more, “Pi!” sound is heard and the operation changes to a forced
cooling operation. After approx. 3 minutes, a cooling operation starts
forcedly. Check cool air starts blowing. If the operation does not start,
check wiring again.
2 To stop a test operation, push TEMPORARY
button once again (approx. 1 second). y Check wiring / piping of the indoor
and
outdoor units in forced cooling operation.
TEMPORARY button
29-EN
15
Maintenance
CAUTION
Before maintenance, be sure to turn off the leakage breaker.
Cleaning of air ¿lter
y Clogging of the air ¿lter reduce cooling / heating performance.
Cleaning of panel and air ¿lter
Preparation: 1. Turn off the air conditioner by the remote controller. 2. Open
the air inlet grille.
y Slide the hook of the air inlet grille outward, and open the air inlet
grille slowly while holding it.
Loosen screw
Use a vacuum cleaner to remove dust
from the ¿lters or wash them with water.
y After rinsing the air ¿lters with water, dry them in the shade.
y Set the air ¿lter into the air conditioner.
Clean the panel and air ¿lter with water:
y Wipe down the panel and air ¿lter with a sponge or towel moistened with a
kitchen detergent. (Do not use any metallic brush for cleaning.)
y Carefully rinse the panel and air ¿lter to wash out the detergent.
y After rinsing the panel and air ¿lter with water, dry it in the shade.
1. Close the air inlet grille. y Close the air inlet grille, slide the hook
inward, and ¿x the air inlet grille securely.
Loosen screw
Hook lock grille
Direction to open
Hook lock grille
Air inlet grille
Push hook
Direction to open
Hook lock grille
Direction to close
Hook lock grille
Air inlet grille
Push grille
Direction to close
Cleaning of air ¿lters
If the air ¿lters are not cleaned, it not only reduce the cooling a
performance of air conditioner but causes a failure in the air conditioner
such as water falling in drops.
Preparation: 1. Stop the operation by remote controller. 2. Dismount the air
¿lter.
Air inlet grille
Push and Pull Air ¿lter from grille
Filter air
2. Turn on the circuit breaker, then push the button on the remote controller
to start operation.
CAUTION
y Do not start the air conditioner while leaving the panel and air ¿lter
removed.
REQUIREMENT
Be sure to clean the heat exchanger with pressurized water. If a commercially
available detergent (strong alkaline or acid) cleaning agent is used, the
surface treatment of the heat exchanger will be marred, which may degrade the
self cleaning performance. For details, contact the dealer.
30-EN
T Periodic Maintenance
· For environmental conservation, it is strongly recommended that the indoor
and outdoor units of the air conditioner in use be cleaned and maintained
regularly to ensure ef¿cient operation of the air conditioner. When the air
conditioner is operated for a long time, periodic maintenance (once a year) is
recommended. Furthermore, regularly check the outdoor unit for rust and
scratches, and remove them or apply rustproof treatment, if necessary. As a
general rule, when an indoor unit is operated for 8 hours or more daily, clean
the indoor unit and outdoor unit at least once every 3 months. Ask a
professional for this cleaning / maintenance work. Such maintenance can extend
the life of the product though it involves the owner’s expense. Failure to
clean the indoor and outdoor units regularly will result in poor performance,
freezing, water leakage, and even compressor failure.
Inspection before maintenance Following inspection must be carried out by a quali¿ed installer or quali¿ed service person.
Parts
Inspection method
Heat exchanger*
Open the air intake grille to remove the bell mouth and the fan, and then check the heat exchanger if there is any clogging or damages.
Fan motor
Check if any abnormal noise can be heard.
Fan
Open the air intake grille and check the fan if there are any waggles, damages or adhesive dust.
Filter
Open the air intake grille and check if there are any stains or breaks on the ¿lter.
Drain pan*
Remove the panel, the bell mouth and the drain pan, and then check if there is any clogging, abnormal smell or drain water pollution.
- Refer to the Service Manual for how to remove.
T Maintenance List
Part
Unit
Check (visual / auditory)
Maintenance
Heat exchanger
Indoor / outdoor
Dust / dirt clogging, scratches
Wash the heat exchanger when it is clogged.
Fan motor
Indoor / outdoor Sound
Take appropriate measures when abnormal sound is generated.
Filter
Indoor
Dust / dirt, breakage
y Wash the ¿lter with water when it is contaminated.
y Replace it when it is damaged.
y Replace the fan when vibration or
Fan
Indoor
y Vibration, balance y Dust / dirt, appearance
balance is terrible. y Brush or wash the fan when it is
contaminated.
Air intake / discharge grilles
Indoor / outdoor Dust / dirt, scratches
Fix or replace them when they are deformed or damaged.
Drain pan
Indoor
Dust / dirt clogging, drain contamination
Clean the drain pan and check the downward slope for smooth drainage.
Ornamental panel, louvers
Indoor
Dust / dirt, scratches
Wash them when they are contaminated or apply repair coating.
Exterior
Outdoor
y Rust, peeling of insulator y Peeling / lift of coat
Apply repair coating.
31-EN
1 Troubleshooting
Con¿rmation and check
If a problem occurs with the air conditioner, the OFF timer indicator
alternately shows the check code and the indoor UNIT No. in which the problem
occurred.
Check code
Indoor UNIT No. in which an error occurred
Troubleshooting history and con¿rmation
You can check the troubleshooting history with the following procedure if a
problem occurs with the air conditioner.
(The troubleshooting history records up to 4 incidents.)
You can check it during operation or when operation is stopped. y If you check
the troubleshooting history during OFF timer operation, the OFF timer will be
canceled.
Procedure
Description of operation
Push the OFF timer button for over 10 seconds and
the indicators appear as an image indicating the
troubleshooting history mode has been entered.
If [ Service check] is displayed, the mode enters in
1
the troubleshooting history mode. y [01: Order of troubleshooting history] appears in the
temperature indicator.
y The OFF timer indicator alternately shows the
[Check code] and the [indoor UNIT No.] in which the
problem occurred.
Each time the setting button is pushed, the recorded troubleshooting history is displayed in sequence. The troubleshooting history appears in order from [01] (newest) to [04] (oldest).
2
CAUTION
In the troubleshooting history mode, DO NOT push the Menu button for over 10 seconds, doing so deletes the entire troubleshooting history of the indoor unit.
After you have ¿nished checking, push the ON/OFF
button to return to the regular mode.
3
y If the air conditioner is operating, it remains operated
even after the ON/OFF button has been pushed.
12 3
EN EN
To stop its operation, push the ON/OFF button again.
16
32-EN
17
Check codes and parts to be checked
Wired remote controller display
Wireless remote controller Sensor block display of receiving unit
Operation Timer
Indication
Ready
Flashing
GR GR OR
Main defective parts
Judging device
Parts to be checked / trouble description
Air conditioner
status
E01
No header remote controller
Incorrect remote controller setting — The header
remote controller has not been set (including two
Remote remote controllers). controller
Remote controller communication trouble
No signal can be received from the indoor unit.
E02
Remote controller transmission trouble
Remote controller
Indoor / outdoor connecting wires, indoor P.C. board, remote controller — No signal can be sent to the indoor unit.
Indoor unit-remote
Remote controller, network adapter, indoor
E03
controller regular
Indoor P.C. board — No data is received from the remote Auto-reset
communication trouble
controller or network adapter.
Indoor unit-outdoor unit
serial communication
Indoor / outdoor connecting wires, indoor P.C. board,
E04
trouble
Indoor outdoor P.C. board — Serial communication trouble Auto-reset
IPDU-CDB
between indoor unit and outdoor unit
communication trouble
E08
Duplicated indoor addresses
Indoor
Indoor address setting trouble — The same address as the self-address was detected.
Auto-reset
Remote controller address setting trouble —
Two remote controllers are set as header in the
E09
Duplicated header remote controllers
Remote doubleremote controller control. controller
(* The header indoor unit stops raising alarm and
follower indoor units continue to operate.)
10
CPU-CPU communication trouble
Indoor
Indoor P.C. board — Communication trouble between main MCU and motor microcomputer MCU
Auto-reset
Communication trouble
E11
between Application control kit and Indoor
Indoor
Communication trouble between Application control kit and Indoor unit
Entire stop
unit
E18
Header unit
follower unit regular
Indoor
communication trouble
Indoor P.C. board — Regular communication is not possible between header and follower indoor units or between twin header (main) and follower (sub) units.
Auto-reset
E31
IPDU communication trouble
Outdoor Communication trouble between IPDU and CDB
Entire stop
Indoor unit heat
Heat exchanger sensor (TCJ), indoor P.C. board —
F01
ALT
exchanger sensor
Indoor Open-circuit or short-circuit of the heat exchanger Auto-reset
(TCJ) trouble
sensor (TCJ) was detected.
Indoor unit heat
Heat exchanger sensor (TC), indoor P.C. board —
F02
ALT
exchanger sensor (TC) Indoor Open-circuit or short-circuit of the heat exchanger Auto-reset
trouble
sensor (TC) was detected.
Outdoor unit discharge
Outdoor temp. sensor (TD), outdoor P.C. board —
F04
ALT
temp. sensor (TD)
Outdoor Open-circuit or short-circuit of the discharge temp. Entire stop
trouble
sensor was detected.
Outdoor unit temp.
Outdoor temp. sensors (TE / TS), outdoor
F06
ALT
sensor (TE / TS)
Outdoor P.C. board — Open-circuit or short-circuit of the
Entire stop
trouble
heat exchanger temp. sensor was detected.
F07
ALT
TL sensor trouble
Outdoor
TL sensor may be displaced, disconnected or shortcircuited.
Entire stop
F08
ALT
Outdoor unit outside air temp. sensor trouble
Outdoor
Outdoor temp. sensor (TO), outdoor P.C. board –Open-circuit or short-circuit of the outdoor air temp. sensor was detected.
Operation continued
F10
ALT
Indoor unit room temp. sensor (TA) trouble
Indoor
Room temp. sensor (TA), indoor P.C. board –Opencircuit or short-circuit of the room temp. sensor (TA) was detected.
Auto-reset
3435-EN
Wired remote controller display
Wireless remote controller Sensor block display of receiving unit
Operation Timer
Indication
Ready
Flashing
GR GR OR
Main defective parts
Judging device
Parts to be checked / trouble description
Air conditioner
status
F12
ALT
TS sensor trouble
Outdoor
TS sensor may be displaced, disconnected or shortcircuited.
Entire-stop
F13
ALT
Heat sink sensor trouble
Outdoor
Abnormal temperature was detected by the temp. sensor of the IGBT heat sink.
Entire stop
F15
ALT
Temp. sensor connection trouble
Outdoor
Temp. sensor (TE / TS) may be connected incorrectly.
Entire stop
F29
SIM
Indoor unit, other P.C. board trouble
Indoor Indoor P.C. board — EEPROM trouble
Auto-reset
F30
SIM
Occupancy sensor trouble
Indoor
Abnormality was detected from occupancy sensor.
Operation continued
F31
SIM
Outdoor unit P.C. board Outdoor
Outdoor P.C. board —- In the case of EEPROM trouble.
Entire stop
Current detect circuit, power voltage — Minimum
H01
Outdoor unit compressor breakdown
Outdoor
frequency was reached in the current releasing control or short-circuit current (Idc) after direct
Entire stop
excitation was detected
H02
Outdoor unit compressor lock
Outdoor
Compressor circuit — Compressor lock was detected.
Entire stop
H03
Outdoor unit current detect circuit trouble
Outdoor
Current detect circuit, outdoor unit P.C. board — Abnormal current was detected in AC-CT or a phase loss was detected.
Entire stop
H04
Case thermostat operation
Outdoor Malfunction of the case thermostat
Entire stop
H06
Outdoor unit lowpressure system trouble
Outdoor
Current, high-pressure switch circuit, outdoor P.C. board — Pressure sensor trouble was detected or low-pressure protective operation was activated.
Entire stop
L03
SIM
Duplicated header indoor units
Indoor
Indoor address setting trouble — There are two or more header units in the group.
Entire stop
L07
SIM
Group line in individual indoor unit
Indoor
Indoor address setting trouble — There is at least one group-connected indoor unit among individual indoor units.
Entire stop
L08
SIM
Indoor group address not set
Indoor
Indoor address setting trouble — Indoor address group has not been set.
Entire stop
L09
SIM
Indoor unit capacity not set
Indoor Indoor unit capacity has not been set.
Entire stop
L10
SIM
Outdoor unit P.C. board
Outdoor
In the case of outdoor P.C. board jumper wire (for service) setting trouble
Entire stop
L20
SIM
LAN communication trouble
Network adapter central control
Address setting, central control remote controller, network adapter — Duplication of address in central control communication
Auto-reset
Other outdoor unit trouble
Entire stop
L29
SIM
Other outdoor unit trouble
- Communication trouble between IPDU MCU Outdoor and CDB MCU
Entire stop
- Abnormal temperature was detected by the heat
sink temp. sensor in IGBT.
Abnormal external
External devices, outdoor unit P.C. board —
L30
SIM
input into indoor unit Indoor Abnormal stop due to incorrect external input into Entire stop
(interlock)
CN80
L31
SIM
Phase sequence trouble, etc.
Outdoor
Power supply phase sequence, outdoor unit P.C. board — Abnormal phase sequence of the 3-phase power supply
Operation continued (thermost at OFF)
Indoor fan motor, indoor P.C. board — Indoor AC
P01
ALT
Indoor unit fan trouble Indoor fan trouble (fan motor thermal relay activated) was Entire stop
detected.
P03
ALT
Outdoor unit discharge temp. trouble
Outdoor
An trouble was detected in the discharge temp. releasing control.
Entire stop
4364-EN
Wired remote controller display
Wireless remote controller Sensor block display of receiving unit
Operation Timer
Indication
Ready
Flashing
GR GR OR
Main problem parts
Outdoor unit
P04
ALT
highpressure system
trouble
P05
ALT
Open phase detected
P07
ALT
Heat sink overheat
P10
ALT
Indoor unit water overÀow detected
P12
ALT
The fan trouble of the indoor unit
P15
ALT
Gas leakage detected
P19
ALT
4-way valve trouble
P20
ALT
High-pressure protective operation
P22
ALT
Outdoor unit fan trouble
P26
ALT
Outdoor unit inverter Idc activated
P29
ALT
Outdoor unit position trouble
P31
ALT
Other indoor unit trouble
Judging device
Parts to be checked / trouble description
Air conditioner
status
Outdoor
Outdoor Outdoor Indoor
Indoor Outdoor Outdoor (Indoor)
High-pressure switch — The IOL was activated or an trouble was detected in the
high-pressure releasing control using the TE.
The power wire may be connected incorrectly. Check open phase and voltages of
the power supply.
Abnormal temperature was detected by the temp. sensor of the IGBT heat sink.
Drain pipe, clogging of drainage, Àoat switch circuit, indoor P.C. board —
Drainage is out of order or the Àoat switch was activated.
Abnormal operation of the indoor fan motor, indoor P.C. board, or indoor DC
fan (over current or lock, etc.) is detected.
There may be gas leakage from the pipe or connecting part. Check for gas
leakage.
4-way valve, indoor temp. sensors (TC / TCJ) — An trouble was detected due to
temperature drop of the indoor unit heat exchanger sensor when heating.
Entire stop Entire stop Entire stop Entire stop Entire stop Entire stop Auto- reset
Outdoor High-pressure protection
Entire stop
Outdoor Outdoor Outdoor Indoor
Outdoor unit fan motor, outdoor unit P.C. board –An trouble (overcurrent, locking, etc.) was detected Entire stop in the outdoor unit fan drive circuit.
IGBT, outdoor unit P.C. board, inverter wiring, compressor — Short-circuit protection for compressor drive circuit devices (G-Tr / IGBT) was activated.
Entire stop
Outdoor unit P.C. board, high-pressure switch –Compressor motor position trouble was detected.
Entire stop
Another indoor unit in the group is raising an alarm. Entire stop
E03/L07/L03/L08 alarm check locations and trouble description
Auto-reset
: Lighting : Flashing : OFF : The air conditioner automatically enters the auto-address setting mode. ALT : When two LEDs are Àashing, they Àash alternately. SIM: When two LEDs are Àashing, they Àash in synchronization. Receiving unit display OR : Orange GR : Green
1 Speci¿cations
Model
RAV-HM301U1TP-E RAV-HM401U1TP-E * Under 70 dBA
Sound power level (dBA)
Cooling
Heating
Weight (kg) Main unit (Ceiling panel)
13 (4) 13 (4)
35-EN
18
EENN
36-EN
Declaration of Conformity
Manufacturer:
Toshiba Carrier (Thailand) Co., Ltd. 144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road, Tambol Bangkadi, Amphur Muang, Pathumthani 12000, Thailand
TCF holder:
TOSHIBA CARRIER EUROPE S.A.S Route de Thil 01120 Montluel FRANCE
Hereby declares that the machinery described below:
Generic Denomination:
Air Conditioner
Model / type:
RAV-HM301U1TP-E RAV-HM401U1TP-E
Commercial name:
Digital Inverter Series Air Conditioner
Complies with the provisions of the Machinery Directive (Directive 2006/42/EC) and the regulations transposing into national law
Name: Position: Date: Place Issued:
Masaru Takeyama GM, Quality Assurance Dept. 3 October, 2022 Thailand
19
Declaration of Conformity
Manufacturer:
Toshiba Carrier (Thailand) Co., Ltd. 144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road, Tambol Bangkadi, Amphur Muang, Pathumthani 12000, Thailand
TCF holder:
TOSHIBA CARRIER UK LTD. Porsham Close Belliver Industrial Estate Roborough Plymouth Devon PL6 7DB United Kingdom
Hereby declares that the machinery described below:
Generic Denomination:
Air Conditioner
Model / type:
RAV-HM301U1TP-E RAV-HM401U1TP-E
Commercial name:
Digital Inverter Series Air Conditioner
Complies with the provisions of the Supply of Machinery (Safety) Regulations 2008
Name: Position: Date: Place Issued:
Masaru Takeyama GM, Quality Assurance Dept. 3 October, 2022 Thailand
NOTE
This declaration becomes invalid if technical or operational modi¿cations are
introduced without the manufacturer’s consent.
NOTE
This declaration becomes invalid if technical or operational modi¿cations are
introduced without the manufacturer’s consent.
37-EN
38-EN
Warnings on Refrigerant Leakage
Check of Concentration Limit
The room in which the air conditioner is to be installed requires a design
that in the event of refrigerant gas leaking out, its concentration will not
exceed a set limit. The refrigerant R32 which is used in the air conditioner
is safe, without the toxicity or combustibility of ammonia, and is not
restricted by laws to be imposed which protect the ozone layer. However, since
it contains more than air, it poses the risk of suffocation if its
concentration should rise excessively. Suffocation from leakage of R32 is
almost non-existent. With the recent increase in the number of high
concentration buildings, however, the installation of multi air conditioner
systems is on the increase because of the need for effective use of Àoor
space, individual control, energy conservation by curtailing heat and carrying
power etc. Most importantly, the multi air conditioner system is able to
replenish a large amount of refrigerant compared with conventional individual
air conditioners. If a single unit of the multi conditioner system is to be
installed in a small room, select a suitable model and installation procedure
so that if the refrigerant accidentally leaks out, its concentration does not
reach the limit (and in the event of an emergency, measures can be made before
injury can occur). In a room where the concentration may exceed the limit,
create an opening with adjacent rooms, or install mechanical ventilation
combined with a gas leak detection device. The concentration is as given
below.
Total amount of refrigerant (kg) Min. volume of the indoor unit installed room (m³) Concentration limit (kg/m³)
The concentration limit of R32 which is used in multi air conditioners is 0.3 kg/m³.
NOTE 1 If there are 2 or more refrigerating systems in a single refrigerating
device, the amounts of refrigerant should be as
charged in each independent device.
e.g., charged amount (10 kg)
Outdoor unit e.g., charged amount (15 kg)
Indoor unit
Room A Room B Room C Room D Room E Room F
Important
2) When there is an effective opening with the adjacent room for ventilation
of leaking refrigerant gas (opening without a door, or an opening 0.15% or
larger than the respective Àoor spaces at the top or bottom of the door).
Outdoor unit Refrigerant piping
Indoor unit
- If an indoor unit is installed in each partitioned room and the refrigerant piping is interconnected, the smallest room of course becomes the object. But when a mechanical ventilation is installed interlocked with a gas leakage detector in the smallest room where the density limit is exceeded, the volume of the next smallest room becomes the object.
Refrigerant piping
Outdoor unit
Indoor unit
Very small room
Small room
Medium room
Large room
Mechanical ventilation device – Gas leak detector
NOTE 3 The minimum indoor Àoor area compared with the amount of refrigerant is
roughly as follows:
(When the ceiling is 2.7 m high)
For the amount of charge in this example: The possible amount of leaked
refrigerant gas in rooms A, B and C is 10 kg. The possible amount of leaked
refrigerant gas in rooms D, E and F is 15 kg.
NOTE 2 The standards for minimum room volume are as follows.
- No partition (shaded portion)
39-EN
20
40
m² 35 30 25
Range below the density limit of 0.3 kg/m³ (countermeasures not needed)
Min. indoor Àoor area
20
15
Range above the
density limit of 0.3 kg/m³
10
(countermeasures needed)
5
0
10
20
30
Total amount of refrigerant
kg
EENN
40-EN
42-EN
Con¿rmation of indoor unit setup
Prior to delivery to the customer, check the address and setup of the indoor
unit, which has been installed in this time and ¿ll the check sheet (Table
below). Data of four units can be entered in this check sheet. Copy this sheet
according to the No. of the indoor units. If the installed system is a group
control system, use this sheet by entering each line system into each
Installation Manual attached to the other indoor units.
REQUIREMENT This check sheet is required for maintenance after installation. Fill this sheet and then pass this Installation Manual to the customers.
Indoor unit setup check sheet
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Room name
Room name
Room name
Room name
Model
Model
Model
Model
Check indoor unit address. (For check method, refer to APPLICABLE CONTROLS in this manual.) * In case of a single system, it is unnecessary to enter the indoor address. (Code No.: Line [12], Indoor [13], Group [14], Central control [03])
Line
Indoor
Group
Line
Indoor
Group
Line
Indoor
Group
Line
Indoor
Group
Central control address
Central control address
Central control address
Central control address
21
Various setup
Various setup
Various setup
Various setup
Have you changed high ceiling setup? If not, ¿ll check mark [×] in [NO
CHANGE], and ¿ll check mark [×] in [ITEM] if changed, respectively. (For check
method, refer to APPLICABLE CONTROLS in this manual.) * In case of replacement
of jumper blocks on indoor microcomputer P.C. board,
setup is automatically changed.
High ceiling setup
(CODE No [5d]) NO CHANGE STANDARD HIGH CEILING 1 HIGH CEILING 3
[0000] [0001] [0002] [0003]
High ceiling setup
(CODE No [5d]) NO CHANGE STANDARD HIGH CEILING 1 HIGH CEILING 3
[0000] [0001] [0002] [0003]
High ceiling setup
(CODE No [5d]) NO CHANGE STANDARD HIGH CEILING 1 HIGH CEILING 3
[0000] [0001] [0002] [0003]
High ceiling setup
(CODE No [5d]) NO CHANGE STANDARD HIGH CEILING HIGH CEILING 3
[0000] [0001] [0002] [0003]
Have you changed lighting time of ¿lter sign? If not, ¿ll check mark [×] in [NO CHANGE], and ¿ll check mark [×] in [ITEM] if changed, respectively. (For check method, refer to APPLICABLE CONTROLS in this manual.)
Filter sign lighting time
(Code No. [01])
NO CHANGE
NONE
[0000]
150H
[0001]
2500H
[0002]
5000H
[0003]
10000H
[0004]
Filter sign lighting time
(Code No. [01])
NO CHANGE
NONE
[0000]
150H
[0001]
2500H
[0002]
5000H
[0003]
10000H
[0004]
Filter sign lighting time
(Code No. [01])
NO CHANGE
NONE
[0000]
150H
[0001]
2500H
[0002]
5000H
[0003]
10000H
[0004]
Filter sign lighting time
(Code No. [01])
NO CHANGE
NON
[0000]
150H
[0001]
2500H
[0002]
5000H
[0003]
10000H
[0004]
Have you changed detected temp. shift value? If not, ¿ll check mark [×] in [NO CHANGE], and ¿ll check mark [×] in [ITEM] if changed, respectively. (For check method, refer to APPLICABLE CONTROLS in this manual.)
Detected temp, shift value setup
(Code No. [06])
NO CHANGE
NO SHIFT
[0000]
+1°C
[0001]
+2°C
[0002]
+3°C
[0003]
+4°C
[0004]
+5°C
[0005]
+6°C
[0006]
Detected temp, shift value setup
(Code No. [06])
NO CHANGE
NO SHIFT
[0000]
+1°C
[0001]
+2°C
[0002]
+3°C
[0003]
+4°C
[0004]
+5°C
[0005]
+6°C
[0006]
Detected temp, shift value setup
(Code No. [06])
NO CHANGE
NO SHIFT
[0000]
+1°C
[0001]
+2°C
[0002]
+3°C
[0003]
+4°C
[0004]
+5°C
[0005]
+6°C
[0006]
Detected temp, shift value setup
(Code No. [06])
NO CHANGE
NO SHIFT
[0000]
+1°C
[0001]
+2°C
[0002]
+3°C
[0003]
+4°C
[0004]
+5°C
[0005]
+6°C
[0006]
Incorporation of parts sold separately
Incorporation of parts sold separately
Incorporation of parts sold separately
Incorporation of parts sold separately
Have you incorporated the following parts sold separately? If incorporated,
¿ll check mark [×] in each [ITEM]. (When incorporating, the setup change is
necessary in some cases. For setup change method, refer to Installation Manual
attached to each part sold
separately.)
Others (
)
Others (
)
Others (
)
Others (
)
Others (
)
Others (
)
Others (
)
Others (
)
41-EN
1 Appendix
Work instructions
The existing R22 and R410A piping can be reused for inverter R32 product
installations.
WARNING
Con¿rming the existence of scratches or dents on the existing pipes and
con¿rming the reliability of the pipe strength are conventionally referred to
the local site. If the speci¿ed conditions can be cleared, it is possible to
update existing R22 and R410A pipes to those for R32 models.
Basic conditions needed to reuse existing pipes
Check and observe the presence of three conditions in the refrigerant piping
works. 1. Dry (There is no moisture inside of the pipes.) 2. Clean (There is
no dust inside of the pipes.) 3. Tight (There are no refrigerant leaks.)
Restrictions for use of existing pipes
In the following cases, the existing pipes should not be reused as they are.
Clean the existing pipes or exchange them with new pipes. 1. When a scratch or
dent is heavy, be sure to use
new pipes for the refrigerant piping works. 2. When the existing pipe
thickness is thinner than the
speci¿ed “Pipe diameter and thickness,” be sure to use new pipes for the
refrigerant piping works. y The operating pressure of refrigerant is high.
If there is a scratch or dent on the pipe or a thinner pipe is used, the
pressure strength may be inadequate, which may cause the pipe to break in the
worst case.
- Pipe diameter and thickness (mm)
Pipe outer diameter R32, R410A
Thickness R22
Ø6.4 0.8
Ø9.5 Ø12.7 Ø15.9 0.8 0.8 1.0
3. When the outdoor unit was left with the pipes disconnected, or the gas
leaked from the pipes and the pipes were not repaired and re¿lled. y There is
the possibility of rain water or air, including moisture, entering the pipe.
4. When refrigerant cannot be recovered using a refrigerant recovery unit. y
There is the possibility that a large quantity of dirty oil or moisture
remains inside the pipes.
5. When a commercially available dryer is attached to the existing pipes. y
There is the possibility that copper green rust has been generated.
6. When the existing air conditioner is removed after refrigerant has been
recovered. Check if the oil is judged to be clearly different from normal oil.
y The refrigerator oil is copper rust green in color: There is the possibility
that moisture has mixed with the oil and rust has been generated inside the
pipe. y There is discolored oil, a large quantity of residue, or a bad smell.
y A large quantity of shiny metal dust or other wear residue can be seen in
the refrigerant oil.
7. When the air conditioner has a history of the compressor failing and being
replaced. y When discolored oil, a large quantity of residue, shiny metal
dust, or other wear residue or mixture of foreign matter is observed, trouble
will occur.
8. When temporary installation and removal of the air conditioner are
repeated such as when leased etc.
9. If the type of refrigerator oil of the existing air conditioner is other
than the following oil (Mineral oil), Suniso, Freol-S, MS (Synthetic oil),
alkyl benzene (HAB, Barrel-freeze), ester series, PVE only of ether series. y
The winding-insulation of the compressor may deteriorate.
NOTE
The above descriptions are results have been con¿rmed by our company and
represent our views on our air conditioners, but do not guarantee the use of
the existing pipes of air conditioners that have adopted R32 in other
companies.
Curing of pipes
When removing and opening the indoor or outdoor unit
for a long time, cure the pipes as follows: y Otherwise rust may be generated
when moisture or
foreign matter due to condensation enters the pipes. y The rust cannot be
removed by cleaning, and new
pipes are necessary.
Placement location
Outdoors
Indoors
Term
Curing manner
1 month or more Less than 1 month
Every time
Pinching Pinching or taping
Are there scratches or dents on the existing pipes?
NO
Is it possible to operate the existing air conditioner?
YES
y After the existing air conditioner is operated in cooling mode for approx.
30 minutes or longer,* recover the refrigerant.
y For cleaning the pipes and recovering oil y Refrigerant recovery: Pump down
method
YES NO
Existing pipes: Cannot be used. y Use new pipes.
Nitrogen gas pressure 0.5 MPa
y Remove the existing air conditioner from the piping and carry out Àushing
(nitrogen pressure 0.5 MPa) to remove any remains inside of the pipe.
Note: In case of twin pipes, also be sure to Àush the branching pipe.
Was largely discolored oil or a large quantity of remains discharged? (When
the oil deteriorates,
the color of the oil changes to a muddy or black color.)
NO
Connect the indoor / outdoor units to the existing pipe. y Use a Àare nut
attached to the main unit for the
indoor / outdoor units. (Do not use the Àare nut of the existing pipe.) y Re-
machine the Àare machining size to size for R32.
y (Airtight test), Vacuum dry, Refrigerant charge, Gas leak check
Test run
(If there is discharge of remains, it is judged that a large quantity of remains are present.)
YES
Clean the pipes or use new pipes.
Piping necessary to change the Àare nut / machining size due to pipe compression
- Flare nut width: H
(mm)
Copper pipe outer diameter
Ø6.4 Ø9.5 Ø12.7 Ø15.9
For R32, R410A 17
22
26
29
H
For R22
Same as above 24
27
- Flare machining size: A
A
Copper pipe outer diameter
Ø6.4 Ø9.5
For R32, R410A 9.1 13.2
For R22
9.0 13.0
Becomes a little larger for R32
(mm) Ø12.7 Ø15.9 16.6 19.7 16.2 19.4
Do not apply refrigerator oil to the Àare surface.
EENN
43-EN
22
44-EN
144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road, Tambol Bangkadi, Amphur
Muang, Pathumthani 12000, Thailand
ZZtZtEZt
References
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