Panasonic Cw Xc70ja Cw Xc90ja Repair Manual

							9.2.6. Cooling Operation Time Diagram
9.3. Powerful Operation
 • Purpose of this operation is to obtain the setting temperature quickly.
 • When the Powerful is set during Cooling Operation, the set temperature will be automatically decreased 3°C against the present
setting temperature (Lowest limit temperature: 16°C).
 • This operation automatically will be running under Super High Fan Speed.
 • Sound emitted by the unit will be increased during Powerful operation due to increased of air volume.
 • Powerful will operate for 15 minutes only, afterthat it will shift back to previous operation mode.
 • Powerful will stop if:-
 − Powerful button/Pad is pressed again.
 − Powerful operation has run for 15 minutes.
 − Stopped by ON/OFF switch.
 − Timer OFF activates.
9.4. Random Auto Restart Control
 • If there is a power failure, operation will be automatically restarted after 3 to 4 minutes when the power is resumed.
It will start with previous operation mode and airflow direction (TimeDelay Safety Control is valid)as the operation was not
stopped by Remote Control or Main Unit (Touch Control Panel).
 • Restart time is decided randomly with 5 parameters:-
 − Intake air temperature.
 − Setting temperature.
 − Fan speed.
 − Air Swing blade position.
 − Indoor heat exchanger temperature.
 • Auto Restart Control is not available when Timer is set.
 • If Powerful operation is set during power failure, Powerful operation will not start automatically along with previous operation
mode after power resume.
 • This control can be omitted by open the circuit JX1.
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							9.5. Fan Speed Control
 • Manual Fan Speed Control
Basic fan speed adjustment (2 setting, from Lo to Hi) can be carried out by using the Fan Speed Selection Button/Pad at the
Remote Control or Main Unit (Touch Control Panel).
9.6. Airflow Direction Control
9.6.1. Horizontal Airflow Direction
When Air Swing Button/Pad is pressed with Remote Control
or Main Unit (Touch Control Panel)in the Auto Airflow, the
airflow direction louver swings side to side within the full swing
range as shown in the “Diagram”.
The louver can be adjusted by pressing the Button/Pad again
at the Remote Control or Main Unit (Touch Control Panel) to
the desired louver position.
When stopped with Remote Control or Main Unit (Touch
Control Panel), the louver vane is reset, and stopped at the
closing position.
“Diagram”
9.6.2. Vertical Airflow Direction
 • The upward and downward airflow direction vane can be adjusted manually by hand.
9.7. Remote Control Signal Receiving Sound
 • To switch off the beep sound.
Press the “Operation OFF/ON Pad” at the main unit continuously for 10 second or more.
Repeat the above if you want to switch ON the “beep” sound.
*However, if the “Operation OFF/ON Pad” have been pressed, the previous operation mode will be activated. If you do not
require this operation, you may change it by using the Main Unit (Touch Control Panel).
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							10.1. Parts Identification
10.1.1.1. Vertical Airflow Direction Vane
Airflow direction adjustment up-down.
 • The vertical airflow direction vane is
controlled by rotating the horizontal
vane forward or backward.
NOTE
Vertical adjustment of the airflow direction
is done manually.
10.1.1.2. Ventilation Lever
The ventilation lever must be inCLOSE
position in order to maintain the best cooling
conditions.
When fresh airis necessary in the room, set
the ventilation lever to theOPENposition.
The damper is opened and room air is drawn
out.
10 Operating Instructions
10.1.1. Main Unit
10.1.1.3. Touch Control Panel
10.1.1.4. Types of Signal Sound
 • One long “Beep” and one short “Beep”. (Sound from the main unit.)
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							Ensure that the power plug is
securely inserted.
 • A loose plug may cause a fire
or an electric shock.
NOTES
 • If the unit is not going to be used for an extended period of
time, remove the powerplug. Otherwise,approximately
2.5W of electricity will be used even if the unit has been
turned off using the remote control.
 • If operation is stopped, and to be restarted immediately, the
unit will resume operation only after 3 minutes.
10.2.1. How to Insert Batteries
(1) Open the cover.
(2) Insert the two batteries.
(3) Close the cover.
* Maximum distance: 10 m
Be sure to observe the following:
 • Aim remote control at the
control panel on air
conditioner when operating.
 • Do not drop or throw the
remote control.
 • Do not place the remote
control in a location that is
exposed to direct sunlight or
next to a heating unit or other
heat sources.
10.2.2. About the Batteries
 • The batteries can be usedfor approximately one year.
 • Be sure to replace the batteries with two new identical
batteries.
 • Remove the batteries if the air conditioner will not be used
for an extended period of time.
10.2.3. Operation Conditions
Use the air conditioner under the following conditions:
 • Operating temperature range.
Indoor sideOutdoor side
D.B.T.W.B.T.D.B.T.W.B.T.
Maximum
Temperature32°C23°C43°C26°C
Minimum
Temperature16°C11°C16°C11°C
D.B.T.: Dry Bulb Temperature
W.B.T.: WetBulb Temperature
NOTE: Humidity may exceed 90%.
 • Continuous operation at over90% high humidity may create
condensation and result in water drops on the intake and
outlet vanes.
10.1.2. Remote Control
10.2. Preparation Before Operating
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							10.3. Air Conditioner Operation
10.3.1. Operating the Unit
Touch Control PanelRemote ControlDisplay
Start operation by pressingOPERATION.
 • Operation will turn on and the display panel will light up.
To stop the operation, press theOPERATIONagain.
 • The unit will stop operating and the display panel light will
turn off.
10.3.2. Setting Display Temperature
Touch Control PanelRemote ControlDisplay
Display will
change
according to
the setting.
PressTEMP/TIMER “Upward”or“Downward”to set the
display temperature.
 • The temperature can be set between 16°C and 30°C.
Recommended temperature: 26°C ~ 28°C.
NOTES
 • The latest temperature setting will be memorized and will
appear on the display the next time it’s turned on.
 • The display temperature selection is for display purpose
only and does not indicateactual room setting
temperatures. Your room temperature may not necessarily
match the displayed temperature.
10.3.3. Selecting Operation Mode
Touch Control PanelRemote ControlIndicator
PressMODEto select the desired operation.
 • The indicator will light up and a “beep” sound will indicate
changing setting.
COOL mode
To set display temperature toyour preference of cooling
comfort.
FAN mode
To provide air circulation without cooling the room.
During Fan operation, temperature setting cannot be
selected.
10.3.4. Selecting Fan Speed
Touch Control PanelRemote ControlIndicator
PressFAN SPEEDto choose the speed level of the fan.
 • The indicator will light up and a “beep” sound will indicate
changing setting.
NOTE
The latest fan speed setting will be memorized and the indicator
will light up the next time the unit is turned on.
10.3.5. Adjusting Horizontal Airflow Direction
Touch Control PanelRemote ControlIndicator
No indication will appear.Press to selectAIR SWING.
 • The air circulation will automatically move the horizontal
louvres left and right for better air distribution around the
room.
NOTE
Using your hands to adjust thedirection may causethe louvres
to malfunction. If this happens, stop operation immediately and
restart.
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							10.3.6. Powerful Operation
Touch Control PanelRemote ControlDisplay
To obtain set temperature quickly:
 • PressPOWERFUL.
 • To cancel this operation, press once more.
 • AfterPOWERFULis selected, the operation will go on for
15 minutes, after that it will shift back to previous operation
mode.
 • W hen thePOWERFULis set during Cooling Operation, the
set temperature will be automatically decreased 3°C
against the present setting temperature (lowest limit 16°C).
NOTE
Sound emitted by the unit will be increased duringPOWERFUL
operation due to increased of air volume.
10.3.7. Setting The Off Timer
Touch Control PanelRemote ControlDisplay
When the airconditioner in operation:
Press theTIMERbutton.
 • TheSET/CANCELindicator light will blink awaiting for
setting.
Press theTEMP/TIMER “Upward”or“Downward”button
until the preferred hour of operation is reached.
Press theSET/CANCELbutton to complete the setting. At this
time, theSET/CANCELindicator light is steady instead of
blinking.
NOTE
The hour reading will change back to the set temperature
reading after 10 seconds (You can also revert to temperature
setting immediately by pressing theTEMP/TIMER “Upward”or
“Downward”buttons again).
10.3.8. Check Timer Setting During Off Timer
Touch Control PanelRemote ControlDisplay
Press theTIMERbutton to check the remaining programmed
timer setting.
 • The figure will be displayed for 10 seconds then will
automatically switch back to temperature setting.
NOTE
The timer figure will change according to the time remaining (if
you set it to turn off 3 hours from now, the timer will show“2”
when you check the timer an hour later).
10.3.9. Cancel Timer Setting During Off Timer
Touch Control PanelRemote ControlDisplay
Press theSET/CANCELbutton to cancel the timer setting.
 • TheSET/CANCELindicator light will turn off.
However the temperature remains displayed.
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							10.3.10. Setting The On Timer
Touch Control PanelRemote ControlDisplay
Press theTIMERbutton.
 • TheTIMERindicator light will blink awaiting for setting.
Press theTEMP/TIMER “Upward”or“Downward”button
until the preferred hour of operation is reached.
Press theSET/CANCELbutton to complete the setting. At this
time, theTIMERindicator light is steady instead of blinking.
NOTE
The display will show the remaining hour to the start of the
operation (if you set to turn on 3 hours from now, the timer will
show“2”at an hour later).When set time isreached, the air
conditioner starts the operation under the previous setting
mode and theTIMERindicator will light off. Now, the previous
set mode and the fan speed will light up. Simultaneously, the
display will show the setting temperature.
10.3.11. Check Temperature / Mode / Fan Speed Setting During On Timer
Touch Control PanelRemote ControlDisplay
Press theTIMERbutton. TheTIMERindicator light will blink
and the previous temperature setting will be shown.
Simultaneously,MODEandFAN SPEEDindicator will light up.
This indication will last for 5 seconds, and then the display will
show the remaining time.MODEandFAN SPEEDindicator
light will turn off. At this time, theTIMERindicator light is steady
instead of blinking.
10.3.12. Change Temperature/Mode/Fan Speed Setting During On Timer
Touch Control PanelRemote ControlDisplay
Press theSET/CANCELbutton to cancel the timer setting.
Press theOPERATION. Set the desired mode and the fan
speed.
Then pressOPERATIONbutton to stop operation.
Start theTIMERsetting again by repeating the step from the
“Setting The On Timer” procedures.
10.3.13. Cancel Timer Setting During On Timer
Touch Control PanelRemote ControlDisplay
Press theSET/CANCELbutton to cancel the timer setting. The
SET/CANCELindicator light will turn off.
To operate the air conditioner before reaching the set timer:
 • Press theSET/CANCELto cancel the timer.
 • Press theOPERATIONbutton to turn on the unit.
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							 1. Remove the rear cabinet screws and chassis locking
bracket from the cabinet. Save for later use.
 2. Slide the chassis out from the cabinet. 3. Place cabinet into the installation hole.
11 Installation Instructions
11.1. Choosing the Installation Location
 • When installing, use the nearest power outlet. Make sure the power outlet is easy to reach so you can quickly disconnect your
air conditioner in case of emergency.
 • Ensure that the air conditioner is well supported, securely fastened, easily reachable and not obstructed.
 • Avoid locations with: saltyor sulphurous air, draughts, dampness and flammable gas.
 • If you install the drainagesystem, be sure to channel thecondensed water to a suitable location.
 • Covers, obstructions and unsteady supportmay cause excessive operating noise and vibration.
 • The rear end of the air conditioner is splash proof. You need not shield or cover it.
11.2. Preparation Before Installation
11.2.1. Dimension
 • There should not be any obstacles surrounding the unit.
 • Prepare an installation holeslightly bigger than the cabinet size.
 • Left and right sides of the unit should be at least 15 cmaway fromthe wall.
11.3. Installation Procedures
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							 4. Slide the chassis into the cabinet.
 5. Reinstall the cabinet screws.
Secure the cabinet to chassis by using screws (from rear
cabinet). Lock the chassis to the cabinet reusing the
chassis locking bracket and screw.
Depending upon the location of the AC outlet, route the AC
cord to either the left or right side while installing the front
grille.
 6. Attach the front grille to the cabinet and fasten it with screw.
 7. Attach the air filter to the front grille.
 8. Slide the front grille slightly to the right to reattach the tabs
and then push it down to close tight.
11.4. Removal of Front Grille
 1. Remove the front intake grille.
Pull up the front intake grille about 90° and slide it slightly to
the left to unhook the tabs.
CAUTION
Do not raise the front intake grille any higher than 90° to the
unit or damage to the tabs may occur.
 2. Remove the air filter.
Tilt up and pull out the Air Filter by the holder.
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							 3. Remove the front grille.
 a. At the bottom right side of the front grille, press inward
on the cabinet near the power cord, and pull the grille
outward to the right until right tab releases.
 b. At the bottom left side, push inward on the cabinet and
pull the grille outward to the left to release the left tab.
Do not pull the bottom edge toward you more than 3
inches to prevent two top tabs from damage.
 c. Slide the Front Grille upwards to free the top two tabs
from slots at the top of the cabinet.
11.5. Remove the Air Filter
Procedures
 1. Pull and lift up the front intake grille at 45° until it is
supported by the stopper.
 2. Tilt up and pull out the air filter by the holder.
11.6. Electric Work
 • Always use atthe rated voltage and with a specific air
conditioning circuit.
 • Some installation locations may require the installation of a
short-circuit breaker.
 • A 16 Ampere time delay fuseor circuit breaker is required.
 • Nominal cross sectional area of power supply wire must be
3 core x 1.5 mm
2or above.
 • The power supply must be from an independent circuit.
 • All electrical installations mustbe made in accordance with
local wiring and safety regulations wherever applicable.
 • There must be a double pole switch with a minimum of 3
mm contact gap in the fixed installation circuit.
 • Please engage an authorized dealer or specialist for the
installation work.
11.7. Condensed Water Drainage
This air conditioner employs a “Slinger-Up System” which is
designed to splash the condensed water on the condenser coil
for maximum cooling efficiency,thus producing a splashing
sound. If the splashing sound annoysyou, you canprovide an
outside drainage by using thefollowing procedurewhich may,
however, cause a small loss of performance.
Note:
If the unit is installed at coastal area, drainage of condensed
water is recommended to prevent the condenser being
corroded easily.
 1. Remove the rubber plug and slide the chassis out from the
cabinet.
 2. Install the drain pan.
Install the drain pan at the right corner of the cabinet using
2 screws.
 3. Connect a drain hose. Fit the drain hose to the drain pan.
NOTE
Drain hose or tubing can be purchased locally to satisfy
your particular needs.
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