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97
2. Precautions in high humidity circumstance.
This air conditioner has been tested according to the “JIS Standard Conditions with Mist” and have been
confirmed that there are no faults. However, if it is operated for a long time in high humid atmosphere (dew point
temperature: more than 23°C), water drops are liable to fall. In this case, add heat insulation material according
to the following procedure:
x Heat insulation material to be prepared…
confirmed that there are no faults. However, if it is operated for a long time in high humid atmosphere (dew point
temperature: more than 23°C), water drops are liable to fall. In this case, add heat insulation material according
to the following procedure:
x Heat insulation material to be prepared…
Adiabatic glass wool with thickness 10 to 20
mm.
mm.
x Stick glass wool on all air conditioners that are
located in ceiling atmosphere.
x In addition to the normal heat insulation
(thickness: more than 8 mm) for refrigerant
piping (gas piping: thick piping) and drain
piping, add a further of 10 mm to 30 mm
thickness material.
piping (gas piping: thick piping) and drain
piping, add a further of 10 mm to 30 mm
thickness material.
Pipe down
Indoor
unit
Pipe
Putty
Trap
Incision
Drain pipe
ސ Put the incision at the trap part of the heat insulator
(for water drain)
Wall seal
x When the outdoor unit is installed on a higher position than the indoor unit, install the trap so as not to instill
rain water into the wall by transmitting in piping.
x Stuff the space among piping, the electric wire, and the drain hose with “Putty” and seal the penetration wall
hole.
Make sure that rain water do not instill into the wall.
Make sure that rain water do not instill into the wall.
11.5.7 ELECTRICAL
WIRING
As to main power source and cable size of outdoor unit, read the installation manual attached to the outdoor unit.
Warning
The units must be installed in accordance with applicable national and local regulations.
The units installed by a professional installer must be supplied from a dedicated electrical circuit.
All electric work must be carried out by a qualified technician according to proper technical standards for electrical work and
according to installation manual for installation work.
If circuits with insufficient capacity are used, or if electrical work is not carried out properly, electric shocks or fire may result.
The units installed by a professional installer must be supplied from a dedicated electrical circuit.
All electric work must be carried out by a qualified technician according to proper technical standards for electrical work and
according to installation manual for installation work.
If circuits with insufficient capacity are used, or if electrical work is not carried out properly, electric shocks or fire may result.
Caution
Be sure to install a current leakage breaker or circuit breaker to the main power supply, otherwise electric shocks may result.
Caution
Be sure to connect the unit to secure earth connection. (with a earth resistance of 100
ȍ or less).
If the earthing work is not carried out properly, electric shocks may result.
Warning
Wiring shall be connected securely using specified cables and fix them securely so that external force of the cables may not
transfer to the terminal connection section. Imperfect connection and fixing leads to fire, etc.
transfer to the terminal connection section. Imperfect connection and fixing leads to fire, etc.
1. Select a power source that is capable of supplying the current required by the air conditioner.
2. Feed the power source to the unit via a distribution switch board designed for this purpose, the switch should
disconnected all poles with a contact separation of at least 3 mm.
3. Always ground the air conditioner with a grounding wire and screw to meet the LOCAL REGULATIONS.
4. Be sure to connect the wires correctly to terminal board with connecting the crimp type ring terminal to the wires.
5. Be sure to turn off the main power before installing and connecting the remote controller.
4. Be sure to connect the wires correctly to terminal board with connecting the crimp type ring terminal to the wires.
5. Be sure to turn off the main power before installing and connecting the remote controller.
Note
If momentarily turning on the power supply for both the indoor and outdoor units, do not turn the power off after at least 1
minute has passed. (For the system’s automatic setting.)
Turning off the power supply on the way may cause an abnormal operation.
minute has passed. (For the system’s automatic setting.)
Turning off the power supply on the way may cause an abnormal operation.
98
x Use the standard power cord for Europe (such as H05RN-F or H07RN-F which conforms to CENELEC (HAR)
rating specifications) or use the cables based on IEC standard. (245IEC57, 245IEC66)
Outdoor unit
Branch pipe
Refrigerant pipe
Control cable
To other indoor unit
Indoor unit-A
Wired controller
Earth
Earth
Switch
Infrared remote controller
Receiver
Earth leakage breaker
Power supply
(ex. 1 ~ 230V)
Switch
Power supply
(ex. 1 ~ 230V)
Provide separate power supplies to the indoor and outdoor units.
Earth leakage breaker
x Power supply specifications
Power supply cable
Circuit breaker
(Minimum capacity)
Model
name
Power
supply
supply
Minimum power
cable supply
cables
1
Length
(m)
Leakage
current
breaker
(A)
Switch
(A)
Fuse
(A)
2
Control
Cable
Remote
Controller
Cable
Indoor unit
220V-240V~
2 mm
2
100 15A 15A 15A
0.75
mm
2
0.5 ~ 2 mm
2
1. The maximum length shows a 2% voltage drop.
2. Use an unshielded bus transmission line.
2. Use an unshielded bus transmission line.
CONNECTING THE WIRES TO THE CONTROL BOX
x Remove the mounting screw, remove the control box cover, and then connect the wires by following the
procedure given in the illustration.
Control box cover
Detail of wire insertion
Earth wire
Earth lead wire shall be longer than other lead wires
as shown in the figure for the electrical safety in case
of the slipping out of the cord from anchorage.
as shown in the figure for the electrical safety in case
of the slipping out of the cord from anchorage.
Caution
Make sure that screws of the terminal
are securely tightened.
are securely tightened.
Remote control wire
Louver motor wire
Power supply cable
Screw to connect
the Earth wire
the Earth wire
Terminal board
Control cable
99
11.5.8 SETTINGS
The automatic system settings can take up to 1 minute once power is supplied; do not operate the remote
controller during this time.
In the event that 1 remote controller group control is not used, do not set up the group control address (A/C No.).
The wired remote control will not display when the settings for the A/C No. are set to a value other than “01”.
Once the wires are connected to 1 remote controller group control and power is supplied to the indoor unit, the
A/C No. is automatically set. To stop group control use, follow the directions below and clear the A/C No. that was
automatically set after disconnecting the wires for group control. If it is not cleared then the wired controller will not
show any display.
automatically set after disconnecting the wires for group control. If it is not cleared then the wired controller will not
show any display.
x Instructions on clearing the A/C No. after automatic setup
Turn OFF the indoor unit power supply
ĺ Using the DIP switch set the A/C No. to “16” ĺ Turn ON the power
supply of the indoor unit
ĺ After approximately 1 minute, turn OFF the power supply to the indoor unit ĺ Set
the DIP switch for the A/C No. to “01”.
(The next time the power supply is turned ON, the A/C No. will be cleared.)
(The next time the power supply is turned ON, the A/C No. will be cleared.)
Setting for 1 remote controller group control
x A maximum of 16 indoor units can be connected at the time of group control. (Do not connect the heat pump unit
x A maximum of 16 indoor units can be connected at the time of group control. (Do not connect the heat pump unit
with the cooling only unit.)
x There are 2 methods for setting the group control address (A/C No.); an automatic and a manual setting method.
x The A/C No. setting cannot be confirmed when using the automatic method.
x To set each indoor unit’s A/C No., use the manual setting method.
However, if the wall type indoor unit is connected, then manual setting is not possible.
Ŷ Automatic setting
x By switching ON the indoor unit’s power supply with the DIP switch where the A/C No. is set to “01” (factory
setting), the A/C No. will be automatically set. (After activating the power for all indoor units, the automatic
setting takes approximately one minute.)
setting takes approximately one minute.)
x Once the A/C No. is automatically set, even when the power supply is switched OFF, the setting is stored.
To reset the A/C No. setting, follow the instructions for the “group control automatic address reset”. Refer to
the item “Local setting” in the installation instruction manual that comes with the wired controller for the
“group control automatic address reset” method.
* If the indoor unit’s A/C No. DIP switch is not set to “01”, the automatic setting cannot be reset.
the item “Local setting” in the installation instruction manual that comes with the wired controller for the
“group control automatic address reset” method.
* If the indoor unit’s A/C No. DIP switch is not set to “01”, the automatic setting cannot be reset.
Ŷ Manual setting
x The manual setting is performed using each indoor unit’s printed circuit board DIP switch. (Refer to the
diagram below)
x Set the DIP switch once the power supply for each indoor unit is switched OFF. When the power supply is
turned ON, the stored A/C No. is recalled.
x To change the setting of the A/C No., turn OFF the power supply before resetting the DIP switch.
* Ensure that there is no redundancy in the A/C No. Any redundancy can cause faulty control.
* Ensure to set the A/C No. to “01” for 1 indoor unit.
* Ensure to set the A/C No. to “01” for 1 indoor unit.
A/C No.
01
02
03
04
05
06
07
08
Indoor unit
printed circuit
board DIP switch
(SW2)
printed circuit
board DIP switch
(SW2)
Unnecessary
operation
1-ON
2-ON
1,2-ON
3-ON
1,3-ON
2,3-ON
1,2,3-ON
A/C No.
09
10
11
12
13
14
15
16
Indoor unit printed
circuit board DIP
switch (SW2)
circuit board DIP
switch (SW2)
4-ON
1,4-ON
2,4-ON
1,2,4-ON
3,4-ON
1,3,4-ON
2,3,4-ON
1,2,3,4-ON
(Refer to the remote controller’s installation instruction manual for the remote controller settings.)
100
11.5.9
INSTALLATION OF DECORATIVE PANEL
The decorative panel has its installation direction. Confirm the direction by displaying the piping side.
1. Remove the air inlet grille by moving the catchers to center.
1. Remove the air inlet grille by moving the catchers to center.
Air inlet grill
Catcher
Decorative panel
Hinge
Air inlet grill
* Hang the hinge on the hole of decorative panel.
(The direction of the installation if free)
2. Fitting the decorative panel
x Temporarily secure the fixing screws (3 pcs.)
before fitting the decorative panel. (For
temporarily securing the front grille.)
temporarily securing the front grille.)
x Place decorative panel on the screws (3 pcs.)
before fitting, move decorative panel as
illustrated and tighten all the screws (4 pcs.).
illustrated and tighten all the screws (4 pcs.).
Caution
x Check before hand the height from the ceiling to
the unit.
x The front grille fitting direction is determined by
the unit direction.
x Only use the screws with the length of 35mm
which is provided, to fix the decorative panel.
x Do not use other screw which is longer it may
cause damage to the drain-pan and other
components.
components.
3. Fit the decorative panel and ceiling wall together and confirm no gap in between. Readjust indoor unit height, if
there is a gap between ceiling wall and decorative panel.
e
l
p
m
a
x
e
d
o
o
G
Air
conditioner
unit
conditioner
unit
Decorative panel
Fit the insulator (this part) and be
careful for cool air leakage.
careful for cool air leakage.
Ceiling
Air
e
l
p
m
a
x
e
d
a
B
Cool air leakage
(no good)
(no good)
Air
Air
conditioner
unit
conditioner
unit
Decorative panel
Ceiling
4. Open the indoor control box cover. (2 pcs)
5. Insert firmly the connector of cosmetic louver and
of the infrared receiver to indoor PCB CN-STM1,
CN-STM2 and CN-DISP.
Be caution not to clamp the cord in between
control board and control board cover.
CN-STM2 and CN-DISP.
Be caution not to clamp the cord in between
control board and control board cover.
6. After complete, install back removed part follow
opposite procedure.
Warning
Be sure to hook the air inlet grill string, to
prevent grill from falling and causing injury
from it.
prevent grill from falling and causing injury
from it.
When using the infrared remote controller, refer to the
instruction manual supplied with the infrared remote
controller (option) and the infrared receiver (option)
Hang the
string
string
Catcher
Catcher
Air inlet grille
Louver motor wire
CN-STM2
CN-STM1
CN-DISP
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