Tekadoor RAV-CT101BH-M Installation instructions

DX Air Curtain (EC)
Installation and Owner's manual
Model name: For commercial use
RAV-CT101/151/201/251BH-M/L DX Air Curtain (EC) Built-in (Medium / Large)
RAV-CT101/151/201/251CH-M/L DX Air Curtain (EC) Free-Hanging (Medium / Large)
RAV-CT101/151/201/251UH-M/L DX Air Curtain (EC) Cassette (Medium / Large)
ENGLISH

1
DX Air Curtain
Contents
This symbol mark is for EU countries only. This symbol mark is according to the directive 2002/96/EC Article
10 Information for users and Annex IV.
This product is designed and manufactured with high quality materials and components which can be
recycled and reused.
This symbol means that electrical and electronic equipment, at the end-of-life, should be disposed of
separately from your household waste.
Please dispose of this equipment at your local community waste collection / recycling centre.
In the European Union there are separate collection systems for used electrical and electronic product.
Please read this Installation Manual carefully before installing the DX Air Curtain.
•This Manual describes the installation method of the DX Air Curtain.
•You must also refer to the Installation Manual attached to the Toshiba outdoor unit.
ADOPTION OF R410A REFRIGERANT
This Air Conditioner is a type which adopts a HFC refrigerant (R410A) instead of the conventional
refrigerant R22 in order to prevent destruction of the ozone layer.
This appliance is for commercial use only and should not be accessible to the general public.
This appliance is not intended for use by person (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
Contents
1
INSTALLER: APPLICATION _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
2
2
INSTALLER: PRECAUTIONS FOR SAFETY _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
3
3
INSTALLER: INSTALLATION _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
3
4
INSTALLER: ELECTRICAL WORK _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
6
5
INSTALLER: APPLICABLE CONTROLS _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
9
6
INSTALLER: TEST RUN _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
15
7
INSTALLER: TROUBLE SHOOTING _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
16
8
INSTALLER: MAINTENANCE GUIDELINES _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
19
9
INSTALLER: OPTIONAL PARTS _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
20
10
INSTALLER: TECHNICAL SPECIFICATIONS _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
21
11
INSTALLER: TECHNICAL DRAWINGS _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
22
12
INSTALLER: DECLARATION OF CONFORMITY_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
25
13
INSTALLER: SERVICE PARTS _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
26
14
OWNER: PRECAUTIONS FOR SAFETY _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
27
15
OWNER: REMOTE CONTROLLER _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
28
16
OWNER: CORRECT USAGE _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
31
17
OWNER: TIMER OPERATION _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
33
18
OWNER: MAINTENANCE _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
34
19
OWNER: AIR CONDITIONER OPERATIONS AND PERFORMANCE _ _ _ _ _ _ _ _ _ _
36

2
DX Air Curtain
Installer
1APPLICATION
Every air curtain is manufactured conforming with European directives and the latest standards. Air curtains prevent air
currents and draughts and produce a comfortable environment in the door entrance area
The air curtains are manufactured to the latest technical standards and regulations. The quality controls include
material and function controls and ensure a quality product with a long life span.
The air curtains are built to CE guide lines.
The fan-motors used in the Air Curtain comply with ErP 2015 (Commission Regulation (EU) No 327/2011).
Correct installation is of paramount importance. This includes that unit and control are also used in the correct
environment. The air curtains and controls are manufactured for indoor use only.
Do not install in humid, aggressive or explosive areas. During the installation the unit has to be kept clean and dry.
Applications:
DX Air curtains are only applicable:-
For indoor areas (shops, warehouses, exhibition halls, or banks, etc.)
Installed in false ceilings or free hanging
DX Air curtains must not be installed:-
In humid areas like swimming pools
Areas with danger of explosion
Areas with aggressive air
Areas with extreme high dust exposure
Vertically (Only horizontally hung installations are permitted)
Twin / Triple Restriction:
To ensure reliable operation DX Air Curtains must be connected to a single outdoor unit (no twin or triple installations).
Model Range: Built-in unit (BH)
Suitable for installation in the ceiling space above the door, only the inlet
grille and discharge outlet will be visible.
Door widths: 1.0m, 1.5m, 2.0m and 2.5m
2 versions offered: Medium (Door height range: 2.5m to 3.0m)
Large (Door height range: 2.7m to 3.2m)
Free-Hanging unit (CH)
Suitable for installation above the door, where whole unit will be visible.
Door widths: 1.0m, 1.5m, 2.0m and 2.5m
2 versions offered: Medium (Door height range: 2.5m to 3.0m)
Large (Door height range: 2.7m to 3.2m)
Cassette unit (UH)
Suitable for installation where the ceiling space is limited above the door,
the full panel will be visible.
Door widths: 1.0m, 1.5m, 2.0m and 2.5m
2 versions offered: Medium (Door height range: 2.5m to 3.0m)
Large (Door height range: 2.7m to 3.2m)
"Air On" Temperature Limits: Minimum 15°CDB / Maximum 28°CDB
In Heating mode (reverse cycle) when the outdoor unit is producing hot gas, the DX coil in the Air Curtain is effectively
the condenser. Air temperatures flowing across the coil below this level, can cause over condensing of the refrigerant.
This can result in liquid being returned to the compressor which will cause a mechanical failure of the outdoor unit. Low
air temperatures will also cause the unit to use it's defrost mode more often

3
DX Air Curtain
Installer
2PRECAUTIONS FOR SAFETY
•Ensure that all Local, National and International regulations are satisfied.
•Read this "PRECAUTIONS FOR SAFETY" carefully before installation.
•The precautions described below include the important items regarding safety. Observe them without fail.
•After the installation work, perform a trial operation to check for any problem.
•Follow the installation manual to explain how to use and maintain the unit to the customer.
•Turn off the main power supply switch (or breaker) before the unit maintenance.
•Ask the customer to keep the installation manual.
•THIS AIR CONDITIONER ADOPTS THE HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE
LAYER.
The characteristics of R410A refrigerant are; easy to absorb water, oxidizing membrane or oil, and its pressure is
approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil has also
been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerating oil does
not enter the refrigerating cycle.
To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging port of
the main unit and installation tools are changed from those of conventional refrigerant.
Accordingly the exclusive tools are required for the new refrigerant (R410A).
For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust does not
enter. Moreover, do not use the existing piping because there are problems with the pressure-resistance force and
impurity in it.
This appliance must be connected to the main power supply by means of a switch with a constant separation of at least
3mm.
3INSTALLATION
POSITIONING OF THE AIR CURTAIN
The unit should be installed as close as possible to the wall and
as flush as possible to the top of the door.
The outlet flow should always be free and not interrupted or
obstructed.
Don‘t exceed the recommended installation height recommended
per type. Type plate can be found on the inside of the access
panel.
Installation height
Type Door Height Range
M (Medium)
2.5 – 3.0 m
L (Large)
2.7 – 3.2 m
•DO NOT STAND UNDERNEATH THE UNIT WHILE LIFTED OR DURING INSTALLATION
•DO ONLY USE APPROPRIATE TOOLS FOR LIFTING AND INSTALLING
•FOLLOW ALL LOCAL RULES AND REGULATIONS
Refrigerant (R410A) Air Conditioner Installation
To Disconnect the Appliance from Main Power Supply
Ceiling mounting kit
Electrical connections
Inlet grill
Access cover
Door
frame
External
wall

4
DX Air Curtain
Installer
The access panel and E-Box cover has to be accessible at all times!
In all situations the accessibility of the unit over the whole length of
the unit has to be ensured.
Please refer to the technical drawings for dimensions.
For installation within a ceiling void it has to be ensured that the
access panel between in and outlet grille is accessible over the
whole length of the unit.
The sliding type (BH) sections have to be fixed at the desired height
(use methods suitable to avoid vibrations).
CEILING MOUNTING
Please use the fixing points. The number of fixing points depends on model and length of the air curtain.
Model
(RAV-)
Built-in (BH)
Free-Hanging (CH) Cassette (UH)
CT101 CT151 CT201 CT251 CT101 CT151 CT201 CT251
Fixing
points 1.0m 1.5m 2.0m 2.5m 1.0m 1.5m 2.0m 2.5m
4 M M M - M M M -
L L L - L L L -
6 - - - M - - - M
- - - L - - - L
Pressure
Fa
DX Coil
Inlet plenum
Access
Free-Hanging (CH)
Built-in (BH)
Cassette (UH)
Ceiling mounting kit
Electrical connections
Inlet grill
Access cover
Door
frame
External
wall
Ceiling mounting
kit
Electrical
connections
Inlet grill
Access cover
Door
frame
External
wall
Ceiling mounting kit
Electrical connections
Inlet grill
Access cover
Door
frame
External
wall

5
DX Air Curtain
Installer
FLARE NUT CONNECTION
The Air Curtain is fitted with R410A Flare Nuts and is charged with
Nitrogen Gas (1 barg) when shipped.
Please refer to the installation Manual attached to the Toshiba
Outdoor unit for flare nut instructions.
Gas Pipe External ∅15.9mm
Liquid Pipe External ∅9.5mm (Remove Schrader pipe)
OPTIONAL CEILING MOUNTING KIT
Ceiling mounting kit with vibration absorber and sound insulation bracket:-
CODE
DESCRIPTION
DETAILS
3871
Ceiling mounting kit (1,0m / 1,5m / 2,0m)
M8 x 4
4034
Ceiling mounting kit (2,5m)
M8 x 6
Wall plugs are not included in the delivery!
When choosing the wall plug, please refer to the weight of the unit and the certification of the material
When assembling the spanner nut, please make sure that all hanging rods and set screws are properly fitted together.
All parts must be countered with a lock nut.
Lock nut M 8
Hanging rod M 8
length 1 m
lock nut M 8
Spanner nut M 8
Setting range 30
Set screw M 8 with left-hand and right-hand
Lock nut M 8

6
DX Air Curtain
Installer
4ELECTRICAL WORK
WARNING
1. Using the specified wires, ensure to connect
the wires, and fix wires securely so that the
external tension to the wires do not affect the
connecting part of the terminals.
Incomplete connection or fixation may cause a fire,
etc.
2. Be sure to connect earth wire (grounding work).
Incomplete grounding cause an electric shock.
Do not connect ground wires to gas pipes, water
pipes, lightning rods or ground wires for telephone
wires.
3. 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 fire.
CAUTION
•This indoor unit has no power cord.
•If incorrect / incomplete wiring is carried out, it will
cause an electrical fire or smoke.
•Install an earth leakage breaker.
If an earth leakage breaker is not installed, an
electric shock may be caused.
•Be sure to use the cord clamps attached to the
product.
•Do not damage or scratch the conductive core and
inner insulator of power and inter-connecting wires
when peeling them.
•Use the power cord and inter-connecting wire of
specified thickness, type and protective devices
required
REQUIREMENT
•For power supply wiring, strictly conform to the
Local Regulation for each country.
•For wiring of power supply of the outdoor units,
follow the Installation manual of each outdoor unit.
•Never connect 220-240V power to the terminal
blocks ( , etc) for control wiring (otherwise the
system will fail).
•Perform the electric wiring so that it does not come
in to contact with the high-temperature part of the
pipe.
The coating may melt in an accident
•After connecting wires to the terminal blocks, be
sure to leave sufficient wire before fixing with the
cord clamp.
•Run the refrigerant piping and control wiring line in
the same line.
•Do not turn on the power of the indoor unit until
vacuuming of the refrigerant pipes is completed.
Remote controller wiring
2-core non polarity wire is used for the remote
controller wiring.
How to wire
1. Connect the wires from the terminal block on the
outdoor unit to the same numbered terminal on
the DX Air Curtain terminal block. Use wires to
H07 RH-F or 60245 IEC 66 (1.5mm2or more).
2. In the case of unsheathed redundant cords
(conductors) be sure to insulate with electrical
insulation tape.
Fix them so that they do not touch any electrical
or metal parts.
REQUIREMENT
•Be sure to connect the wires matching the
terminal numbers. Incorrect connection causes a
trouble.
•Be sure to pass the wires through the bushing of
the wiring connection port of the DX Air Curtain.
•Keep a margin (approx. 100mm) on a wire to
hang down the electrical parts box at servicing,
etc.
•The low-voltage circuit is provided for the remote
controller (Do not connect the high-voltage
circuit).
•Wiring
1. Remove the E-Box cover on the DX Air Curtain.
2. Strip wire ends (10mm).
3. Connect the wires from the terminal block on the
outdoor unit to the same numbered terminal on
the DX Air Curtain terminal block.
4. Connect the ground wires to the corresponding
terminals.
5. Replace the E-Box cover on the LC DX Air
Curtain.
Earth Line
Connecting wire

7
DX Air Curtain
Installer
Remote controller wiring
•2-core with non-polarity wire is used for wiring of the remote controller wiring and group remote controllers wiring
(0.5mm2to 2.0mm2)
•Strip off approx. 9mm the wire to be connected.
Remote controller wiring. Remote controller inter-unit wiring Wire size: 0.5mm2to 2.0mm2
Total wire length of remote controller wiring and remote
controller inter-unit wiring = L + L1 + L2 + ……..Ln In case of wired type only Up to 500m
In case of wireless type included Up to 400m
Total wire length of remote controller inter-unit wiring = L1 + L2 + ……..Ln Up to 200m
CAUTION
The remote controller wire (communication line) and AC220-240V 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, etc.
Wiring between indoor and outdoor units
▼ Single phase outdoor unit ▼ Three phase outdoor unit
Remote controller wiring
•As the remote controller wire has non-polarity, there is no problem if connections to indoor unit terminal blocks A
and B are reversed.
▼ Wiring diagram
Remote controller inter-unit wiring
(Max. 8 units)
Remote
Controller
Indoor Unit
Indoor Unit
Indoor Unit
Indoor Unit
Remote
Controller
wiring
Terminal block
Remote
Controller unit
Terminal block for
remote controller
wiring of indoor unit
Remote controller wire
(Field supply)
Remote Controller
Remote controller
Wiring
Indoor side
Indoor / Outdoor
Connecting wires
Outdoor side
Remote Controller
Remote controller
Wiring
Indoor side
Indoor / Outdoor
Connecting wires
Outdoor side
Power Supply Power Supply

8
DX Air Curtain
Installer
WIRING DIAGRAM
TC - Sensor
TA - Sensor
TCJ - Sensor
2
1
2
9
7
5
3
5
1
3
1
CN068
BLU
CN033
GRN
CN083
1
3
3
CN304
:
BLUE
RED
2
3
1
1
3
2
CN104
CN102
CN101
H
M
CN080
1
2
1
1
WHI
1
RY002
RY001
GRN
3
1
CN030
GRY
1
RY004
CN076
1
1
1
1
CN073
1
Fuse T5A
2
YEL
1
RED
2
2
3
CN309
RED
GREY
CN079
5
5
BLK
3
3
CN067
WHI
RED
CN074
CN075
2
:
:
:
2
1
2
1
3
1
CN061
CN032
CN060
WHI
WHI
BLU
WHI
WHI
WHI
CN066
CN025
CN041
CN050
3
1
2
3
6
3
4
5
1
3
1
2
3
4
5
2
1
3
1
Outdoor Unit
6
CN01
WHI
1
2
3
4
5
6
1
2
3
4
5
6
5
6
1
RAV-CT201**
RAV-CT251**
Notes
1) The dashed lines
indicate wiring on site.
2)
indicate terminal blocks with alphanumeric indentification.
0d
01
01
01
01
3) Please refer to the Installation manual for wiring instructions.
4) If you replace MCC-1403 please set the following DN CODES:-
DN CODE
RAV-CT101**
RAV-CT151**
04
04
9b
01
01
01
01
11
12
15
17
18
2d
09
09
09
09
04
04
10
2
3
4
5
CN02
YEL
1
2
3
4
1
2
WHI
RED
BLK
ORN
YEL
BLU
BLU
BLU
RY007
BLK
BLU
BLACK
:
1
2
YEL
RED
BLK
9
BLK 6
YEL
WHI
WHI
6
WHI
CN070
7
CN072
WHI
1
2
RY005
RY006
RED
GRY
PNK
GRN
WHI
BRN
ORN
YEL
:
:
:
4
5
4
5
2
3
1
2
1
6
1
2
3
4
6
5
YEL
WHI
BLU
BLK
G / Y
:
GREEN / YELLOW
G / Y
MCC-1403-05
PINK
GREEN
WHITE
BROWN
ORANGE
YELLOW
COLOUR IDENTIFICATION
:
:
L
UL
2
3
1
2
RED
BLU
YEL
WHI
G / Y
G / Y
G / Y
BLU
BLK
RED
BLU
WHI
BLU
BRN
BRN
BLU
Sub Bus A / B
24VDC Serial
MCC-1520
TT-13
TRANSFORMER
RED
BLU
YEL
WHI
G / Y
BLU
BLK
BLK 1
BLK 2
BLK 3
BLK 4
BLK 5
BLK
BLK
1
2
3
1
1
2
The
number
of
fan
motors
varies
by
models
PE
3
2
1
B
A
2
1
4
3
12
0
5
11
PE
L
N
PE
L
N
M
1
2
3
1
2
3
4
4
2
1
3
2
1
3
4
2
1
3
2
1
3
2
1
3
4
2
1
3
4
KRM (EC)
2
1
3
2
1
3
4
M
2
1
3
2
1
3
4
M
2
1
3
2
1
3
4
3
3
2
2
1
1
14
1

9
DX Air Curtain
Installer
5APPLICABLE CONTROLS
REQUIREMENT
•When you use this air conditioner for the first time,
it takes approx. 5 minutes until the remote
controller becomes available after power-on. This
is normal.
<When the power is turned on for the first time
after installation>
It takes approx. 5 minutes until the remote
controller becomes available.
<When the power is turned on for the second
(or later) time>
It takes approx. 1 minute until the remote
controller becomes available.
•Normal settings were made when the unit was
shipped from factory.
Change the indoor unit 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
controller-less system (for central remote controller
only).
Therefore, install the wired remote controller to
change the settings.
Changing of settings for
applicable controls
Basic procedure for changing settings
Change the settings while the air conditioner is not
working.
(Be sure to stop the air conditioner before making
settings).
Procedure 1
Push + + buttons simultaneously for at
least 4 seconds.
After a while, the display flashes as shown in the
figure.
Confirm that the CODE No. is [10].
•If the CODE No. is not [10] push button to
erase the display content and repeat the
procedure from the beginning.
(No operation of the remote controller is accepted
for a while after button is pushed).
(While air conditioners are operated under the
group control, "ALL" is displayed first. When
is pushed, the indoor unit number
displayed following "ALL" is the header unit).
(* Display content varies with the
indoor unit model).
Approx. 5 minutes
Power
on
Remote
controller
is available
flashes
goes out
Approx. 1 minutes
Power
on
Remote
controller
is available
flashes
goes out

10
DX Air Curtain
Installer
Procedure 2
Each time you push button, indoor unit
numbers in the control group change cyclically.
Select the indoor unit you want to change settings for.
The fan of the selected unit runs and the louvers start
swinging. You can confirm the indoor unit for which
you want to change settings.
Procedure 3
Using "TEMP", buttons, specify CODE
NO. [ ].
Procedure 4
Using timer "TIME" buttons, select SET
DATA [ ].
Procedure 5
Push button. When the display changes from
flashing to lit, the setup is completed.
•To change settings of another indoor unit, repeat
from procedure 2.
•To change other settings of the selected indoor unit,
repeat from procedure 3.
Use button to clear the settings.
To make settings after button was pushed,
repeat from procedure 2.
Procedure 6
When settings have been completed, 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).
The circuit board of the DX AIR CURTAIN is configured at the factory. For reference these are the settings used. Any
changes must be set using the DN code menu.
Follow to the basic operation procedure (1 → 2 → 3 → 4 → 5 → 6).
DN
CODE DX AIR CURTAIN MODEL (RAV-****-M/L) CT101BH/CH/UH CT151BH/CH/UH CT201BH/CH/UH CT251BH/CH/UH
01
DIRTY FILTER ALARM
(Disabled)
0000
03
CENTRAL CONTROL ADDRESS
(Unset)
0099*
0d
AUTO MODE
(Disabled)
0001
10 DEVICE TYPE 0004
11 CAPACITY CODE 0012 0015 0017 0018
12
POWER ADDRESS
(Unset)
0099*
13
DEVICE ADDRESS
(Unset)
0099*
14
GROUP ADDRESS
(Unset)
0099*
2d
AVAILABLE MODE
(Heating & Fan Only)
0009
9b FAN CONTROL
(Disabled) 0001 (Fan motor operates during defrost cycle)
(To stop fan motor operation during defrost cycle change to 0000)
* 0099 = address not assigned (system addresses are assigned during the automatic addressing by the system.
Central addresses can be assigned automatically with a central remote control or manually. Subsequent
modifications may lead to malfunction.)
DX Air Curtain Configuration

11
DX Air Curtain
Installer

To secure better effect of
heating
When it is difficult 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 the circulator,
etc. to circulate heat air near the ceiling.
Follow to the basic procedure
(1→2→3→4→5→6).
•For the CODE No. in Procedure 3, specify
[06].
•For the set data in Procedure 4, select the
setup data of shift value of detection
temperature to be set up from the table
below.
Setup Data
Detection temp shift value
0000
No shift
0001
+1°C
0002
+2°C (at shipment from factory)
0003
+3°C
0004
+4°C
0005
+5°C
0006
+6°C

Group Control
In case of group control for system of multiple units.
One remote controller can control maximum 8 indoor units
as a group.
▼In case of group control in single system.
•For wiring procedure and wiring method of the individual
line (Identical refrigerant line) system, follow to
"Electrical work".
•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 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.
NOTE
In some cases, it is necessary to change the address
manually after setup of the automatic address according to
the system configuration of the group control.
Outdoor unit Outdoor unit Outdoor unit Outdoor unit Outdoor unit
Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit
(Max. 8 units)
Remote controller Finish of address setup by Power- ON

12
DX Air Curtain
Installer
Group Control procedure example
Manual address setup procedure
While the operation stops, change the setup.
(Be sure to stop operation of the unit).
Procedure 1
Push simultaneously + + buttons for 4
seconds or more. After a while, the display part
flashes as shown below. Check the displayed CODE
No. is [10].
•When the CODE No. is other than [10], push
button to erase the display and repeat procedure
from the first step.
(After pushing button, operation of the remote
controller is not accepted for approx. 1 minute).
(For group control, No. of the first displayed indoor
unit becomes the header unit).
Procedure 2
Every pushing button, the indoor unit No. in
the group control is displayed in order. Select the
indoor unit of which setup is changed.
In this time, the position of the indoor unit of which
setup is changed can be confirmed because fan of
the selected indoor unit operate.
Procedure 3
1. Using temp. setup buttons, specify CODE
No. [12].
(CODE No. [12]: Line address).
2. Using timer time buttons, change the line
address from [3] to [2].
3. Push button.
In this time, the setup finishes when the display
changes from flashing to lighting.
Indoor unit No. before setup change is displayed.
Procedure 4
1. Using temp. setup buttons, specify
CODE No. [13].
(CODE No. [13]: Indoor address)
2. Using timer time buttons, change the
indoor address form [3] to [2].
3. Push button.
In this time, the setup finishes when the display
changes from flashing to lighting.
Indoor unit No. before setup change is displayed
Procedure 5
1. Using temp. setup buttons, specify
CODE No. [14].
(CODE No. [14]: Group address).
2. Using timer time buttons, change the
setup data from [0001] to [0002].
(Setup data [Header unit: 0001] [Follower unit:
0002])
3. Push button.
In this time, the setup finishes when display
changes from flashing to lighting.
Indoor unit No. before setup change is displayed
(* Display changes according to
the model No. of indoor unit.)

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DX Air Curtain
Installer
Procedure 6
If there is other indoor unit to be changed, repeat
procedure 2to 5to change the setup.
When the above setup has finished, push to
select the indoor unit No. before change of setup,
specify CODE No. [12], [13], [14] in order with temp.
setup buttons, and then check the changed
contents.
Address change check before change:
[3-3-1] → After change [2-2-2].
Pushing button clears the contents of which
setup was changed.
(In this case, procedure from 2is repeated).
Indoor unit No. before setup change is displayed
Procedure 7
After check of the changed contents, push
button, the display disappears and the status
becomes the usual stop status. (When pushing
button the operation from the remote controller is not
accepted for approx. 1 minute).
•If the operation from the remote controller is not
accepted even 1 minute or more passed after
pushing button, it is considered that the
address setup is incorrect.
In this case, the automatic address must be set
again set up.
Therefore repeat procedure of the setup change
from procedure 1.
To recognize the position of the corresponding
indoor unit though the indoor unit No. is known.
Check the position during operation stop.
(Be sure to stop operation of the set).
Procedure 1
Push simultaneously + buttons for 4
seconds or more.
After a while, the display part flashes and the display
appears as shown below.
In this time, the position can be checked because fan
of the indoor unit operate.
•For the group control, the indoor unit No. is
displayed as [ ] and fans of all the indoor
units in the group control operate.
Check the display CODE No. is [01].
•When the CODE No. is other than [01], push
button to erase the display and repeat procedure
from the first step.
(After pushing button, operation of the remote
controller is not accepted for approx. 1 minute).
Procedure 2
In the group control, every pushing button,
the indoor No. in the group control is displayed in
order.
In this time, the position of the indoor unit can be
confirmed because the only fan of the selected
indoor unit operate.
(For a group control, No. of the firstly displayed
indoor unit becomes the header unit).
Procedure 3
After confirmation, push button to return the
mode to the usual mode.
When pushing the button, the display disappears
and the status becomes the usual stop status.
(When pushing button the operation from the
remote controller is not accepted for approx. 1
minute).
(* Display changes according to
the model No. of indoor unit.)

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DX Air Curtain
Installer
Remote controller switch monitoring function
This function is available to call the service monitor mode from the remote controller during a test run to acquire
temperatures of sensors of the remote controller, indoor unit and outdoor unit.
1. Push and buttons simultaneously for at least 4 seconds to call the service monitor mode.
The service monitor indicator lights up and the header indoor unit number is displayed first. CODE No. is also
displayed.
2. Pushing TEMP. buttons, select the number of sensor, etc. (CODE No.) to be monitored (see the following
table).
3. Pushing (left side of button), select an indoor unit in the group to be monitored. The sensor temperatures
of indoor units and their outdoor unit in the control group are displayed.
4. Push button to return to the normal display.
Indoor Unit Data
CODE No. Data Name
01 Room temperature (remote controller)
02 Indoor unit intake air temperature (TA)
03
Indoor unit heat exchanger (coil)
temperature (TCJ)
04
Indoor unit heat exchanger (coil)
temperature (TC)
F3
Indoor unit fan cumulative operating
hours (x1 h)
Outdoor Unit Data
CODE No. Data Name
60
Outdoor unit heat exchanger (coil)
temperature (TE)
61 Outside air temperature (TO)
62 Compressor discharge temperature (TD)
63 Compressor suction temperature (TS)
64

65 Heat sink temperature (THS)
6A Operating current (x1/10)
F1
Compressor cumulative operating hours
(x100h)

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DX Air Curtain
Installer
6TEST RUN

Before test run
•Before turning on the power supply, carry out the
following procedure.
1) Using 500V-Megger, check that the resistance
of 1MΩ or more exists between the terminal
block of the power supply and the earth
(grounding).
If resistance of less than 1MΩ is detected, do
not run the unit.
2) Check the valve of the outdoor unit being
opened fully.
•To protect the compressor at activation time,
leave power-ON for 12 hours or more before
operating.
How to execute a test run
Using the remote controller, operate the unit as
usual.
A forced test run can be executed in the following
procedure even if the operation stops by thermo-
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.
CAUTION
•Do not use the forced test run for cases other
than the test run because it applies excessive
load to the devices.
In case of wired remote controller.
Procedure 1
Keep button pushed for 4 seconds or more.
[TEST] is displayed on the display part and the
selection of mode in the test mode is permitted.
Procedure 2
Push button.
Procedure 3
Using button, select the operation mode,
[ HEAT].
•Do not run the air conditioner in a mode other
than [ HEAT].
•The temperature controlling function does not
work during test run.
•The detection of errors is performed as usual.
Procedure 4
After the test run, push button to stop a
test run.
(Display part is same as procedure 1).
Procedure 5
Push check button to cancel (release from) the
test run mode.
([TEST] disappears on the display and the status
returns to normal).

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DX Air Curtain
Installer
After the TEST RUN
Please check the following after the TEST RUN of the air curtain:
•Are all functions of the control working
•Are all fans run freely
Adapt the outlet grille to summer or winter operation
The outlet grille can be manually adjusted to 5 different positions. In winter the outlet grille needs to be adjusted outwards
(Heating), in summer inwards (Fan Only). The airstreams then needs to be adjusted in a way that the air stream reaches
the ground at room temperature.
Outlet grille (examples)
☼Summer Winter

7TROUBLE SHOOTING

Confirmation and check
When a trouble occurred in the air conditioner, the
check code and the indoor unit No. appear on the
display part of the remote controller.
The check code is only displayed during the
operation.
If the display disappears, operate the air conditioner
according to the following "Confirmation of error
history" for confirmation.
Confirmation of error history
When a trouble occurred on the air conditioner, the
trouble can be confirmed with the following
procedure. (The trouble history is stored up to 4
troubles.)
The history can be confirmed from both operating
status and stop status.
Procedure 1
When pushing and buttons at the same time
for 4 seconds or more, the following display
appears.
If [ service check] is displayed, the mode enters in
the trouble history mode.
•[01: Order of trouble history] is displayed in CODE
No. window.
•[Check code] is displayed in CHECK window.
•[Indoor unit address in which an error occurred] is
displayed in Unit No.
Procedure 2
Every pushing of "TEMP." button used to
set temperature, the trouble history stored in
memory is displayed in order.
The numbers in CODE No. indicate CODE No. [01]
(latest) → [04] (oldest).
REQUIREMENT
Do not push button because all of trouble
history
of the indoor unit will be deleted.
Procedure 3
After confirmation, push button to return to the
usual display.
Check code Indoor unit No. in which
an error occured

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DX Air Curtain
Installer
Check codes and parts to be checked
Indication
Main defective parts
Judging
device Parts to be checked / error description
Air
conditioner
status
E01
No header remote
controller
Remote
controller
Incorrect remote controller setting --- The header remote controller has not
been set (including two remote controllers).
*
Remote controller
communication error
No signal can be received from the indoor unit.
E02
Remote controller
transmission error
Remote
controller
Indoor/outdoor connecting wires, indoor P.C. board, remote controller ---No
signal can be sent to the indoor unit.
*
E03
Indoor unit-remote
controller regular
communication error
Indoor Remote controller, network adapter, indoor P.C. board --- No data is received
from the remote controller or network adapter. Auto-reset
E04
Indoor unit-outdoor
unit serial
communication error
Indoor Indoor/outdoor connecting wires, indoor P.C. board, outdoor P.C. board ---
Serial communication error between indoor unit and outdoor unit Auto-reset
IPDU-CDB
communication error
E08
Duplicated indoor
addresses 
Indoor
Indoor address setting error --- The same address as the self-address was
detected.
Auto-reset
E09 Duplicated header
remote controllers Remote controller
Remote controller address setting error ---Two remote controllers are set as
header in the double-remote controller control.
*
(* The header indoor unit stops raising alarm and follower indoor units continue
to operate.)
E10
CPU-CPU
communication error
Indoor
Indoor P.C. board --- Communication error between main MCU and motor
microcomputer MCU
Auto-reset
E18
Header indoor unit-
indoor follower unit
regular
communication error
Indoor 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 error
Outdoor Communication error between IPDU and CDB Entire stop
F01
Indoor unit heat
exchanger sensor
(TCJ) error
Indoor Heat exchanger sensor (TCJ) , indoor P.C. board --- Open-circuit or short-
circuit of the heat exchanger sensor (TCJ) was detected. Auto-reset
F02
Indoor unit heat
exchanger sensor
(TC) error
Indoor Heat exchanger sensor (TC), indoor P.C. board --- Open-circuit or short-circuit
of the heat exchanger sensor (TC) was detected. Auto-reset
F04
Outdoor unit
discharge temp.
sensor (TD) error
Outdoor Outdoor temp. sensor (TD), outdoor P.C. board --- Open-circuit or short-circuit
of the discharge temp. sensor was detected. Entire stop
F06
Outdoor unit temp.
sensor (TE/TS) error
Outdoor
Outdoor temp. sensors (TE/TS), outdoor P.C. board --- Open-circuit or short-
circuit of the heat exchanger temp. sensor was detected.
Entire stop
F07
TL sensor error
Outdoor
TL sensor may be displaced, disconnected or short-circuited.
Entire stop
F08
Outdoor unit outside
air temp. sensor
error
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
Indoor unit room
temp. sensor (TA)
error
Indoor Room temp. sensor (TA), indoor P.C. board --- Open-circuit or short-circuit of
the room temp. sensor (TA) was detected. Auto-reset
F12
TS (1) sensor error
Outdoor
TS (1) sensor may be displaced, disconnected or short-circuited.
Entire stop
F13
Heat sink sensor
error
Outdoor
Abnormal temperature was detected by the temp. sensor of the IGBT heat sink.
Entire stop
F15
Temp. sensor
connection error
Outdoor Temp. sensor (TE/TS) may be connected incorrectly. Entire stop
F29
Indoor unit, other
P.C. board error
Indoor Indoor P.C. board --- EEPROM error Auto-reset
F31
Outdoor unit P.C.
board
Outdoor Outdoor P.C. board ---- In the case of EEPROM error. Entire stop
H01
Outdoor unit
compressor
breakdown
Outdoor
Current detect circuit, power voltage --- Minimum frequency was reached in the
current releasing control or short-circuit current (Idc) after direct excitation was
detected
Entire stop
H02
Outdoor unit
compressor lock
Outdoor Compressor circuit --- Compressor lock was detected. Entire stop
H03
Outdoor unit current
detect circuit error
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 (1)
Outdoor Malfunction of the case thermostat Entire stop

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DX Air Curtain
Installer
Indication
Main defective parts
Judging
device Parts to be checked / error description
Air
conditioner
status
H06
Outdoor unit low-
pressure system
error
Outdoor Current, high-pressure switch circuit, outdoor P.C. board ---
Ps pressure sensor
error was detected or low-pressure protective operation was activated. Entire stop
L03
Duplicated header
indoor units

Indoor
Indoor address setting error --- There are two or more header units in the
group. Entire stop
L07
Group line in
individual indoor unit

Indoor Indoor address setting error --- There is at least one group-connected indoor
unit among individual indoor units. Entire stop
L08
Indoor group
address not set 
Indoor Indoor address setting error --- Indoor address group has not been set. Entire stop
L09
Indoor power level
not set
Indoor Indoor power level has not been set. Entire stop
L10
Outdoor unit P.C.
board
Outdoor In the case of outdoor P.C. board setting error jumper wire (for service) Entire stop
L20 LAN communication
error
Network
adapter
central
control
Address setting, central control remote controller, network adapter ---
Duplication of address in central control communication Auto-reset
L29 Other outdoor unit
error Outdoor
Other outdoor unit error
Entire stop
1) Communication error between IPDU MCU and CDB MCU
Entire stop
2) Abnormal temperature was detected by the heat sink temp. sensor in IGBT.
L30
Abnormal external
input into indoor unit
(interlock)
Indoor External devices, outdoor unit P.C. board --- Abnormal stop due to incorrect
external input into CN80 Entire stop
L31 Phase sequence
error, etc. Outdoor Power supply phase sequence, outdoor unit P.C. board --- Abnormal phase sequence of the 3-phase power supply
Operation
continued
(thermostat
OFF)
P01
Indoor unit fan error
Indoor
Indoor fan motor, indoor P.C. board --- Indoor AC fan error (fan motor thermal
relay activated) was detected.
Entire stop
P03
Outdoor unit
discharge temp.
error
Outdoor An error was detected in the discharge temp. releasing control. Entire stop
P04
Outdoor unit high-
pressure system
error
Outdoor High-pressure switch --- The IOL was activated or an error was detected in the
high-pressure releasing control using the TE. Entire stop
P05
Open phase
detected
Outdoor
The power cable may be connected incorrectly. Check open phase and
voltages of the power supply.
Entire stop
P07
Heat sink overheat
Outdoor
Abnormal temperature was detected by the temp. sensor of the IGBT heat sink.
Entire stop
P10
Indoor unit water
overflow detected
Indoor
Drain pipe, clogging of drainage, float switch circuit, indoor P.C. board ---
Drainage is out of order or the float switch was activated.
Entire stop
P15
Gas leakage
detected
Outdoor
There may be gas leakage from the pipe or connecting part. Check for gas
leakage.
Entire stop
P19 4-way valve error Outdoor
(Indoor) 4-way valve, indoor temp. sensors (TC/TCJ) --- An error was detected due to temperature drop of the indoor unit heat exchanger sensor when heating. Auto-reset (Auto-reset)
P20 High-pressure
protective operation Outdoor High-pressure protection. Entire stop
P22 Outdoor unit fan
error Outdoor Outdoor unit fan motor, outdoor unit P.C. board --- An error (over current, locking, etc.) was detected in the outdoor unit fan drive circuit. Entire stop
P26
Outdoor unit inverter
Idc activated Outdoor IGBT, outdoor unit P.C. board, inverter wiring, compressor --- Short-circuit
protection for compressor drive circuit devices (G-Tr/IGBT) was activated. Entire stop
P29
Outdoor unit position
error Outdoor Outdoor unit P.C. board, high-pressure switch ---Compressor motor position
error was detected. Entire stop
P31 Other indoor unit
error Indoor Another indoor unit in the group is raising an alarm. Entire stop
E03/L07/L03/L08 alarm check locations and error description. Auto-reset
 The air conditioner automatically enters the auto-address setting mode.

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DX Air Curtain
Installer
▼ Common Check Codes
L09
Indoor unit Power Code incorrect
Check the settings of DN Code 11 (see Page 10).
L30
Fan Motor operation monitor
Entire Stop. Check the operation monitoring of the EC fan motors. If this contact is “CLOSED”, the error
message “L30” is generated.
8MAINTENANCE GUIDELINES
Maintenance interval
The maintenance of the units should be carried out before the heating period, to ensure correct functioning
of the air curtain.
Cleaning interval
The cleaning of the inlet grilles depends on the contamination of the unit. It is recommended to clean it every
3-6 weeks.
Casing
External staining on the unit doesn‘t have an impact on the functioning of the air curtain. For esthetical
reasons we recommend to clean the casing with a damp cloth and a mild cleaning detergent.
Inlet grille (filter)
The units are designed for easy cleaning and servicing. It is not necessary to disassemble the unit to clean
the inlet grille. All dust can be removed with a Hoover and a brush. It can also be cleaned with a damp cloth.
Please let the inlet grille dry before restarting the unit!
Heat exchanger
To open the access panel, please remove the inlet grille first by opening the clip fixings with a flat screw
driver. Security ropes prevent the grilles to fall down. The access panel is provided with a security screw that
can be removed after the inlet grille has been detached. Please be careful when removing access panel and
outlet grille.
For security reasons the unit has to be taken off the electrical power supply.
The R410A DX Coil has to be cleaned with a Hoover and a brush
behind the inlet grille.
The fans or motors are low maintenance. All motors are long-term
lubricated and do not need special maintenance. Only check that the
fans run freely and the fixing points are in order.
Recycling
It is possible to recycle air curtains.