NEC RSH2423S User manual

N E C RoomAirConditioner
(Single Split Wall Mounted Type)
RSH2423S OWNER'SMANUAL
Before using your air conditioner please read this
manual carefully and keep it for future reference.
Prior to installation, this air-conditioning unit must be
submitted for approval by the utility service which
provides electricity (EN 60555-3 Norm).

Operating Instructions
Care and Maintenance
Troubleshooting Tips
2
Safety Precautions
FOR YOUR RECORDS
Write the model and serial numbers here for the indoor and
outdoor units:
Indoor model # Serial #
Outdoor model # Serial #
You can find them on a label on the side of each unit.
Dealer's Name
Date Purchased
• Inside you will find many helpful hints on how to use and
maintain your air conditioner properly. Just a little
preventive care on your part can save you a great deal of
time and money over the life of your air conditioner.
• You'll find many answers to common problems in the chart
of troubleshooting tips.If you review our chart of
Troubleshooting Tips first, you may not need to call for
service at all.
• Contact the authorized Service technician for repair or
maintenance of this unit.
• Contact the installer for installation of this unit.
• The air conditioner is not intended for use by young
children or infirm persons without supervision.
• Young children should be supervised to ensure that
they do not play with the air conditioner.
READ THIS MANUAL
CAUTION
Safety Precautions
Installation Precautions......3
Operation Precautions .......4
Operating Instructions
Remote Control Features...7
Operation Mode Selection..10
Additional Features..........15
Care and Maintenance
Care and Maintenance.....19
Operation Tips..................22
Troubleshooting tips
Before You
Call For Service..............23
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3
Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
CAUTION
WARNING
Important safety precautions
Read all instructions before using.
Installation precautions
To prevent injury to the user or other people and property damage, the following instructions must be followed.
■Incorrect operation due to ignoring of instruction will cause harm or damage, the seriousness is classified by the
following indications.
■
Meanings of symbols used in this manual are as shown below.
WARNING : This symbol indicates the possibility of death or serious injury.
CAUTION
:This
symbol indicates the possibility of injury or damage to
properties only.
Be sure not to do.
Be sure to follow the instruction.
Please confirm the following important points during installing.
■ This room air conditioner must be earthed.
It may cause electrical shock if
grounding is not perfect.
■ Do not install the unit at place where leakage
of gas may occur and/or in an explosive
atmosphere.
In case gas leaks, the gas may
accumulates the unit and it may
cause fire ignition.
■ Confirm drainage piping is connected
properly. If it is not connected perfectly, it may
cause water leakage and dampen
the furniture.
■ The reverse cycle system of the air conditioner is
based on the air cooling type heat pump which
absorbs heated air from the outdoor unit and
discharges it indoor.
Therefore if the outdoor unit is exposed to very
low temperature, specifically below 0°C, the
heating capacity drops off rapidly.
OPERATING TEMPERATURE(°C)
■ Do not install, remove and reinstall the unit by yourself.
• Improper installation will cause water leakage, electrical shock, or fire. Please consult authorized
dealer or specialist for the installation work. Please note fault caused by improper installation is not
covered by warranty.
• Unit must be installed in an easily accessible area. Any additional cost required to hire a special
equipment to service the unit will be the responsibility of the customer.
COOLING MODE
INDOOR OUTDOOR
MAX. MIN. MAX. MIN.
32°C
21 °C 43 °C 21 °C
HEATING MODE
INDOOR OUTDOOR
MAX. MIN. MAX. MIN.
27°C
20 °C 24 °C 1 °C
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Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
4
WARNING
Plug in the power plug
properly.
• Otherwise, it will cause electrical
shock or fire due to heat
generation.
Do not operate or stop the
unit by inserting or pulling
out the power plug.
• It will cause electrical shock or
fire due to heat generation.
Do not damage or use an
unspecified power cord.
• It will cause electrical shock or fire.
• If the supply cord is damaged, it must
be replaced by the manufacturer or
its service agent or a similarly
qualified person in order to avoid a
hazard.
Do not modify power cord
length or share the outlet
with other appliances.
• It will cause electrical shock or
fire due to heat generation.
Do not operate with wet
hand.
• It may cause electrical shock.
Do not insert anything into the
air inlet/air outlet.
• Since the fan rotates at high
speed, this may cause an injury
or damage the unit.
Do not expose the skin directly to
cool air for long periods of time.
• This could damage your health.
When an abnormality (smell of
burning, etc) occurs, stop the air
conditioner, and disconnect the
power plug or turn off the breaker.
• If the unit continues to be
operated in an abnormal
condition, it may cause a fire,
damage, etc. In this case,
consult your dealer.
Repair or relocation should not
be done by the customer.
• If this is done incorrectly, it may
cause a fire, electric shock, injury
by dropping of the unit, water
leakage, etc. Consult your
dealer.
Operation precautions
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5
Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
CAUTION
When the air filter is to be
removed, do not touch the
metal parts of the indoor unit.
• It may cause an injury.
• Should be disconnected from
supply
Do not clean the air
conditioner with water.
• Water may enter the unit and
degrade the insulation. It may
cause an electric shock.
Ventilate well when used
together with a stove, etc.
• An oxygen shortage may occur.
When the unit is to be
cleaned, switch off, and turn
off the circuit breaker.
• Since the fan rotates at high
speed during operation, it may
cause an injury.
Do not put a pet or house
plant where it will be
exposed to direct air flow.
• This could injure the pet or plant.
Do not use for special
purposes.
• Do not use this air conditioner to
preserve precision devices, food,
animal, plants, and art objects.
It may cause deterioration of
quality, etc.
Do not operate switches
with wet hands .
• It may cause an electric shock.
Do not apply an insecticide
or flammable spray.
• It may cause a fire or deformation
of the cabinet.
Do not put a stove, etc.
where is exposed to direct
air flow.
• It may affect combustion.
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Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
6
CAUTION
When the unit is not going
to be used for a long time,
turn off the circuit breaker.
• If not, dirt may collect and
cause a fire.
Do not operate for a long
time in high humidity, e.g.
leaving a door or window
open.
• In the cooling mode, if it is
operated in a room with high
humidity (80%RH or more) for
a long time, water condensed
in the air conditioner may drop
and may wet and spoil
furniture, etc.
Do not step on the
indoor/outdoor unit and do
not put anything on it.
• It may cause an injury through
dropping or falling down.
Do not step onto an unstable
bench when cleaning and/or
maintaining the unit.
• It may cause an injury, etc. by
falling down.
Do not leave on installation
stand which is damaged.
• The unit may drop or fall down
and cause an injury.
Do not insert hands through
vanes when the air
conditioner is operationg
• It will cause an injury by the
rotating blower.
For installation
WARNING
• Consult your dealer for installing the
air conditioner.
CAUTION
Install a ground fault
interrupter depending on the
place where the air
conditioner is to be installed.
(humid place, etc.)
Do not install the unit where
flammable gas could leak.
Condensed water should be
fully drained.
• If the ground fault
interrupter is not
installed, it may cause
an electric shock.
• If gas leaks and collect around the
unit, it may cause an explosion.
• If the drainage route is incomplete,
water may drop from the unit. It
may wet and spoil furniture.
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7
Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
About the remote control on the system
The remote control transmits the signals to the system.
Features of the Remote Control- Door Opened
1
2
8
9
10
13
11
12
Heat pump model
Cooling model
Signal transmitter
3
4
5
6
7
OPERATION DISPLAY
Displays the operation conditions.
START/STOP BUTTON
Operation starts when this button is pressed
and stops when the button is pressed again.
OPERATION MODE SELECTION
BUTTON
Used to select the operation mode. (Refer to
page 8)
ON/OFF TIMER BUTTONS
Used to set the time of starting and stopping
operation.
TIME SETTING BUTTONS
Used to adjust the time.
TIMER SET/CANCEL BUTTONS
Used to set the timer when the desired time is
obtained and to cancel the Timer operation.
CHAOS SWING BUTTON
Used to stop or start louver movement and set
the desired up/down airflow direction.
SLEEP MODE AUTO BUTTON
Used to set Sleep Mode Auto operation .
AIR CIRCULATION BUTTON
Used to circulate the room air without
cooling or heating (turns indoor fan on/off).
ROOM TEMPERATURE
CHECKING BUTTON
Used to check the room temperature.
NEGATIVE ION (Not on all models)
Used to generate negative ion.
HORIZONTAL AIRFLOW
DIRECTION CONTROL BUTTON
(Not on all models)
Used to set the desired horizontal airflow
direction.
RESET BUTTON
Used prior to resetting time or after
replacing batteries.
1
2
3
4
5
6
7
8
9
10
11
12
13
Flip-up door(opened)
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Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
8
Features of the Remote Control- Door Closed
1
5
2
3
4
Heat pump model
Cooling model
Flip-up door(closed)
START/STOP BUTTON
Operation starts when this
button is pressed and stops
when the button is pressed again.
OPERATION MODE
SELECTION BUTTON
Used to select the operation mode.
ROOM TEMPERATURE
SETTING BUTTONS
Used to select the room
temperature.
INDOOR FAN SPEED
SELECTOR
Used to select fan speed in four
steps-low, medium, high, or
CHAOS.
JET COOL
Used to start or stop the speed
cooling. (Speed cooling
operates super high fan speed
in cooling mode.)
1
2
3
4
5
Operation Mode
Cooling Operation
Auto Operation
Cooling Operation
Healthy
Dehumidification
Operation
Healthy
Dehumidification
Operation
Heating Operation
(Heat Pump Model)
Auto Operation
(Cooling Model)
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9
Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
About the remote control on the system
Storage and Tips For Using the Remote Control
• The remote control may be stored inside the system
or mounted on a wall.(except 7k, 9k model) • To operate the room air conditioner, aim the
remote control at the signal receptor.
• The remote control will operate the air
conditioner at a distance of up to 7m.
How to Insert the Batteries
Remove the battery cover by pulling
it according to the arrow direction.
Insert new batteries making sure that
the (+) and (-) of battery are installed
correctly.
Reattach the cover by sliding it back
into position.
NOTES:
•Use2AAA(1.5volt)batteries.Donotuse
rechargeablebatteries.
•Removethebatteriesfromtheremote
controlifthesystemisnotgoingtobe
usedforalongtime.
Inside the Indoor System
Slide Switch Operation (Refer to page 18)
FORCED OPERATION: Used for operation when the remote control cannot be used.
AUTO RESTART: In case the power comes on again after a power failure, the air
conditioner will operate in "Auto Restart Operation" mode. This function automatically
returns the air conditioner to the pervious operating conditions.
REMOTE CONTROL: If you do not want to use Auto Restart Operation
Signal Receptor
Receives the signals from the remote control.
(Signal receiving sound: two short beeps or one long beep.
Operation Indication Lamps
On/Off : Lights up during the system operation.
Sleep Mode : Lights up during Sleep Mode Auto operation.
Timer : Lights up during Timer operation.
Defrost Mode: Lights up during Defrost Mode or Hot Start operation
(Heat pump model only)
: Lights up during outdoor unit operation.
(Cooling model only)
OUT
DOOR OUTDOOR
UNIT
OPERATION
Slide Switch
Signal receptor
Operation indication lamps
Slide Switch
FORCED
OPERATION
AUTO
RESTART
REMOTE
CONTROL
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Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
10
To raise the temperature
To lower the temperature
Cooling Healthy
Dehumidification
Auto Heating
(Heat pump model only)
How to use the Operation Mode Selection button
Press the Start/Stop button. The unit will respond with a beep.
Open the door on the remote control. To select Cooling
Operation, press the Operation Mode Selection button.
Each time the button is pressed, the operation mode is shifted
in the direction of the arrow.
Close the door on the remote control. Set the temperature
lower than the room temperature. The temperature can be set
within a range of 18°C~30°C in 1°C increments.
Set the fan speed again with the door of the remote control
still closed. You can select the fan speed in four steps-low,
medium, high, or CHAOS. Each time the button is pressed,
the fan speed mode is shifted.
Cooling Operation
1
2
3
4
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Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
To raise the temperature
To lower the temperature
Cooling Healthy
Dehumidification
Auto Heating
(Heat pump model only)
Press the Start/Stop button. The unit will respond with a beep.
Open the door on the remote control. To select Auto
Operation, press the Operation Mode Selection button.
Each time the button is pressed, the operation mode is shifted
in the direction of the arrow.
The temperature and fan speed are automatically set by the
electronic controls based on the actual room temperature. If
you want to change the set temperature, close the door on
the remote control and press the Room Temperature Setting
buttons. The cooler or warmer you feel, the more times (up to
two times) you should press the button. The set temperature
will then be changed automatically.
During Auto Operation:
❏You cannot switch the indoor fan speed. It has already been set by the Fuzzy rule.
❏If the system is not operating as desired, manually switch to another mode. The system will not
automatically switch from the cooling mode to the heating mode, or from heating to cooling, it must
be done by manually resetting.
❏During Auto Operation, pressing the Airfllow direction Start/Stop button makes the horizontal louvers
swing up and down automatically. If you want to stop auto-swing, press the Airflow Direction
Start/Stop button again.
Auto Operation
1
2
3
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Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
12
To raise the temperature
To lower the temperature
Cooling Healthy
Dehumidification
Auto Heating
(Heat pump model only)
Press the Start/Stop button. The unit will respond with a beep.
Open the door on the remote control. To select Healthy
Dehumidification Operation, press the Operation Mode
Selection button.
Each time the button is pressed, the operation mode is shifted
in the direction of the arrow.
During Healthy Dehumidification Operation:
❏If you select the dehumidification mode on the operation selection button, the A/C starts to run the
dehumidification function, automatically setting the room temp. and airflow volume to the best
condition for dehumidification based on the sensed current room temp.
In this case, however, the setting temp. is not displayed in the remote control and you are not able
to control the room temp. either.
❏During the healthy dehumidification function, the airflow volume is automatically set according to the
optimization algorithm responding to the current room temp. status and makes the room condition
healthy and comfortable even in the high humidity season.
Healthy Dehumidification Operation
1
2
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13
Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
Press the Start/Stop button. The unit will respond with a beep.
Open the door on the remote control. To select Heating
Operation, press the Operation Mode Selection button.
Each time the button is pressed, the operation mode is shifted
in the direction of the arrow.
Close the door on the remote control.
Set the temperature higher than the room temperature.
The temperature can be set within a range of 16°C~30°C in
1°C increments.
Set the fan speed again with the door of the remote control
still closed. You can select the fan speed in four steps–low,
medium, high, or CHAOS. Each time the button is pressed,
the fan speed mode is shifted.
Heating Operation(Heat pump model only)
1
2
3
4
To raise the temperature
To lower the temperature
Cooling Healthy
Dehumidification
Auto Heating
(Heat pump model only)
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Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
14
or or
Press the Start/Stop button. The unit will respond with a beep.
Press the Jet Cool button to operate the speed cooling mode
and the unit will operate in super high fan speed on cooling
mode for 30 minutes.
To cancel the Jet Cool mode, press the Jet Cool button
again or the fan speed button or the room temperature setting
button and the unit will operate in high fan speed on cooling
mode.
NOTE:
❏ During the JET COOL function at any moment, the A/C starts to blow the cool air at extremely
high speed for 30 minutes setting the room temp. automatically to 18°C. It is especially used
to cool the room temp. in the shortest time in a hot summer.
In heat pump mode or neuro fuzzy mode however, the JET COOL function is not available.
❏ In order to return to the normal cooling mode from the JET COOL mode, you just press either
the operation mode selection button, airflow volume selection or temp. setting button or the
JET COOL button again.
Jet Cool Operation
1
2
3
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15
Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
Additional features
Sleep Mode
Press the Sleep Mode Auto button to
set the time you want the unit to turn off
automatically.
To cancel the Sleep Mode, press the sleep
Mode Auto button several times until the star
( ) disappears from the operation display.
NOTE: The Sleep Mode will be operated at
low fan speed (cooling) or medium fan speed
(heat pump only) for quiet sleeping.
IN COOLING MODE:The temperature will
automatically rise by 1°C over the next 30
minutes and by 2°C in 1 hour for comfortable
sleeping.
The Timer is programmed in one-hour
increments by pressing the Sleep Mode Auto
button 1 to 7 times.
The sleep mode is available for 1 to 7 times. To
alter the time period in steps of 1 hour, press the
Sleep Mode Button while aiming at air
conditioner.
Make sure the Sleep Mode Auto LED
lights up.
Setting the Time
Press the Start/Stop button.
Time can be set only when you have pressed
the Reset button. If you have just replaced the
batteries, the Reset button should be pressed
to reset the time.
Press the Time Setting buttons until
the desired time is set.
Press the Timer SET button.
NOTE: Check the indicator
for A.M. and P.M.
SET
Delay Start/Pre-Set Stop
NOTE: Select one of the following four types of operation.
OFF
TIME
a.m.
ON
TIME
a.m.
p.m.
ON
TIME
a.m.
p.m.
OFF
TIME
a.m.
p.m.
ON
TIME
a.m.
p.m.
OFF
TIME
a.m.
p.m.
Delay OFF Timer Delay ON Timer Delay OFF and ON Timer Delay ON and OFF Timer
1
1
2
3
2
3
with the unit running
To cancel the setting the timer.
Press the Timer Cancel button while
aiming remote control at the signal
receptor.
(The timer lamp on the air conditioner
and the display will go out.)
Make sure the time is set correctly on the
remote control display.
Press the ON/OFF Timer
buttons to turn Timer on
or off.
Press the Time Setting buttons until the
desired time is set.
Press the selected on/off
setting by pressing the
Timer SET button while
aiming the remote control at
the signal receptor.
ON OFF
SET
1
2
3
4
CANCEL
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Operating Instructions
Care and Maintenance
Troubleshooting Tips
16
Vertical Airflow Direction Control
The up/down airflow (Vertical Airflow) can be
adjusted by using the remote control.
NOTE:
❏If you press the CHAOS swing button, the
horizontal airflow direction is changed
automatically based on the CHAOS algorithm
to distribute the air in the room evenly and at
the same time to make the human body feel
most comfortable, as if enjoying a natural
breeze.
❏Always use the remote control to adjust the
up/down airflow direction. Manually moving the
vertical airflow direction louver by hand could
damage the air conditioner.
❏When the unit is shut off, the up/down airflow
direction louver will close the air outlet vent of
the system.
To adjust left/right(Horizontal Airflow) direction
Caution :Ensure unit is turned off before adjusting
the horizontal airflow direction control.
Carefully open vertical louver to allow
access to the horizontal airflow direction.
Adjust the left/right airflow direction by hand.
Press the Start/Stop button to start the unit.
Open the door on the remote control.
Press Chaos Swing button and the louvers
will swing up and down. Press the CHAOS
Swing button again to set the vertical louver
at the desired airflow direction.
1
2
Press the Start/Stop button to start the unit.
The left/right(Horizontal Airflow) can be adjusted by using the remote control.
Open the door on the remote control. Press the Airflow Direction
Start/Stop button and the louvers will swing left and right. Press the
Horizontal Airflow Direction Control Button again to set the
horizontal louver at the desired airflow direction.
1
2
Horizontal Airflow Direction Control (Option)
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17
Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
Air Circulation Mode
Press the Start/Stop button. the unit will respond with a beep.
Circulates the room air without cooling or heating.
Open the door on the remote control. Press the Air Circulation button. Close the door on the remote control.
Now each time that you press the Indoor Fan Speed Selector, the fan speed is shifted from low to CHAOS and
back to low again.
NOTE:
❏CHAOS Air economizes power consumption and prevents overcooling. The fan speed is
automatically changed from high to low or vice versa, depending on the ambient temperature.
1
2
Fan speed is on low. Fan speed is on medium. Fan speed is on high.CHAOS Air
Negative Ion (Option)
Negative ions are known as 'the vitamins of the air'.
In contrast, polluted air contains positive ions, which are one of the major
contributors to "Sick Building Syndrome", where people suffer from
headaches, stress, and fatigue.
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Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
18
High
speed
Slide Switch
FORCED
OPERATION
AUTO
RESTART
REMOTE
CONTROL
Open the front
panel upward
Slide
Switch
Open the front
panel upward
Slide
Switch
Slide Switch
FORCED
OPERATION
AUTO
RESTART
REMOTE
CONTROL
Operation Details
Natural wind by the CHAOS logic
Helpful information
Fan speed and cooling capacity.
The cooling capacity indicated in the specification is the value when
the fan speed is set to high, and the capacity will be lower at low or
medium fan speed.
High fan speed is recommended when you wish to cool the room
quickly.
For more fresh feeling than other fan speed, press the Indoor Fan
Speed Selector and set to CHAOS mode. In this mode, the wind
blows like natural breeze by automatically changing fan speed
according to the CHAOS logic.
FORCED OPERATION
Operation procedures when the remote control can't be
used.
Open the front panel upward and move the Slide Switch to
the Forced Operation position.
If you want to stop operation, move the Slide Switch to the
Auto Restart or the Remote Control position.
In case the power comes on again after power failure on
the Forced Operation position, the operating conditions are
automatically set as follows:
During Forced Operation, the initial mode continues.
Slide Switch Operation
AUTO RESTART
In case the power comes on again after a power failure, Auto
Restarting Operation is the function to operate procedures
automatically to the previous operating conditions.
In case the air conditioner does not receive any signal from the
remote control, it will turn off automatically after 7 hours.
If you want to use this operation, Open the front panel upward
and move the slide switch to the Auto Restart position.
If you do not want to use this operation, move the Slide Switch
to the Remote Control position.
Whenyouareoutforawhile,puttheSlide
SwitchontheREMOTECONTROL.
Heat pump Model
Cooling Model
Room Temp. ≥24°C 21°C ≤Room Temp. < 24°C Room Temp. < 21°C
Operating mode Cooling Cooling Healthy Dehumidification Heating
Indoor FAN Speed High High Healthy Dehumidification Rule High
Setting Temperature 22°C 22°C 23°C 24°C
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19
Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
Care and maintenance of the air conditioner
CAUTION: Before performing any maintenance, turn off the main power to the system.
Indoor Unit
Grille, Case, and Remote Control
❏Turn the system off before cleaning. To
clean, wipe with a soft, dry cloth. Do not
use bleach or abrasives.
NOTE:
Supply power must be disconnected before
cleaning the indoor unit.
Air Filters
The air filters behind the front grille should
be checked and cleaned once every 2
weeks or more often if neccessary.
❏ Never use any of the followings:
•Water hotter than 40°C
Could cause deformation and/or discoloration.
•Volatile substances
Could damage the surfaces of the air
conditioner.
Lift the front access panel and pull the filter tab
slightly forward to remove the filter.
Clean the filter with a vacuum or warm, soapy
water.
• If dirt is conspicuous, wash with a solution of
detergent in lukewarm water.
• If hot water (40°C or more) is used, it may be
deformed.
After washing with water, dry well in the shade.
Re-install the air filter.
Vertical louver
Horizontal louver
Air filters (behind front panel)
Remote control storage
(behind front panel)
:except 7k, 9k model
Air outlet vent
Air inlet vent
G
a
s
o
l
i
n
e
P
o
w
d
e
r
1
2
3
4
Air Purifying Filters(Option)
This filter consists of two filters. One is electrostatic filter to remove very fine dust as small as 0.1
micron such as tobacco smoke and pollen etc., the other is deodorant filter to remove unpleasant
smell such as food, sweat, and fungus.
Electrostatic filter
Deodorant filter
(Air Purifying System)
Air purifying filter
Air filter
(1)A30045A(wfl+) 1994.10.1212:37PM ’. 3 319

Safety Precautions
Operating Instructions
Care and Maintenance
Troubleshooting Tips
20
Outdoor Unit
The heat exchanger coils and panel vents of
the outdoor unit should be checked regularly.
If clogged with dirt or soot, the heat
exchanger and panel vents may be
professionally steam cleaned.
NOTE:
Dirtyorcloggedcoilswillreducethe
operatingefficiencyofthesystemandcause
higheroperatingcosts.
(Side)
(Rear)
Piping
Drain Hose
Air intake vents
Air outlet vents
(Side)
(Rear)
Drain Hose
Air intake vents
Air outlet vents
Piping
(Side)
(Rear)
Piping
Drain Hose
Air intake vents
Air outlet vents
Replacement of Purifying Filter
• Recomended use period : About 2 years
Open front panel and remove air filters.
Insert new air purifying filters. Reinsert air filters and close front panel.
Remove air purifying filters.
1
3
4
2
(1)A30045A(wfl+) 1994.10.1212:37PM ’. 3 320