Pioneer WAS series User manual

SPLIT-TYPE ROOM AIR CONDITIONER
CS78421-548-754
IMPORTANT NOTE:
Read this manual carefully before installing
or operating your new air conditioning
unit. Make sure to save this manual for
future reference.
Owner’s Manual

Safety Precautions .............................................04
Unit Specifications and Features ........06
Table of Contents
Owner’s Manual
0
1
SAFETY
FIRST
Manual Operation (Without Remote)
....................................... 11
2

Care and Maintenance .................................................................. 12
Troubleshooting ........................................................................................... 14
3
4
European Disposal Guidelines
.............................................
18
5

.............................................
Page 4 
Safety Precautions
Read Safety Precautions Before Installation
Incorrect installation due to ignoring instructions can cause serious damage or injury. The
seriousness of potential damage or injuries is classified as either a WARNING or CAUTION.
WARNING
This symbol indicates that ignoring instructions may cause death or serious
injury.
This symbol indicates that ignoring instructions may cause moderate injury
to your person, or damage to your appliance or other property.
CAUTION
WARNING
This appliance can be used by children aged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been given
supervision or instruction concerning use of the appliance in a safe way and understand the hazards
involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be
made by children without supervision.
INSTALLATION WARNINGS
• Ask an authorized dealer to install this air conditioner. Inappropriate installation may cause water
leakage, electric shock, or re.
• All repairs, maintenance and relocation of this unit must be performed by an authorized service
technician. Inappropriate repairs can lead to serious injury or product failure.
WARNINGS FOR PRODUCT USE
• If an abnormal situation arises (like a burning smell), immediately turn o the unit and pull the
power plug. Call your dealer for instructions to avoid electric shock, re or injury.
• Do not insert fingers, rods or other objects into the air inlet or outlet. This may cause injury, since
the fan may be rotating at high speeds.
• Do not use flammable sprays such as hair spray, lacquer or paint near the unit. This may cause
fire or combustion.
• Do not operate the air conditioner in places near or around combustible gases. Emitted gas may
collect around the unit and cause explosion.
• Do not operate the air conditioner in a wet room (e.g., bathroom or laundry room). This can
cause electrical shock and cause the product to deteriorate.
• Do not expose your body directly to cool air for a prolonged period of time.
Safety
Precautions

Safety
Precautions
Page 5 
ELECTRICAL WARNINGS
• Only use the specified power cord. If the power cord is damaged, it must be replaced by the
manufacturer or certified service agent.
• Keep power plug clean. Remove any dust or grime that accumulates on or around the plug. Dirty
plugs can cause re or electric shock.
• Do not pull power cord to unplug unit. Hold the plug firmly and pull it from the outlet. Pulling
directly on the cord can damage it, which can lead to fire or electric shock.
• Do not use an extension cord, manually extend the power cord, or connect other appliances to
the same outlet as the air conditioner. Poor electrical connections, poor insulation, and insufficient
voltage can cause re.
CLEANING AND MAINTENANCE WARNINGS
• Turn o the device and pull the plug before cleaning. Failure to do so can cause electrical shock.
• Do not clean the air conditioner with excessive amounts of water.
• Do not clean the air conditioner with combustible cleaning agents. Combustible cleaning agents
can cause re or deformation.
CAUTION
• If the air conditioner is used together with burners or other heating devices, thoroughly ventilate
the room to avoid oxygen deficiency.
• Turn o the air conditioner and unplug the unit if you are not going to use it for a long time.
• Turn o and unplug the unit during storms.
• Make sure that water condensation can drain unhindered from the unit.
• Do not operate the air conditioner with wet hands. This may cause electric shock.
• Do not use device for any other purpose than its intended use.
• Do not climb onto or place objects on top of the outdoor unit.
• Do not allow the air conditioner to operate for long periods of time with doors or windows open,
or if the humidity is very high.

Page 6 
Unit Specications and Features 1
Unit Parts
Unit
Specifications
and Features
Power Cable (Some Units )
Remote Control
Remote Holder (Some Units)
“ ” for 3 seconds when:
• TIMER ON is set
• FRESH, SWING, TURBO, or SILENCE features are turned on
“ ” for 3 seconds when:
• TIMER OFF is set
• FRESH, SWING, TURBO, or SILENCE features are turned off
“ ” when defrosting
“ ” when anti-cold air feature is turned on
“ ” when unit is self-cleaning
“ ” when freeze protection is turned on
Display Code
Meanings
Functional Filter
(On Front of Main Filter - Some Units)
Louver
Front Panel
Display window
In Fan mode, the unit will display the room temperature.
In other modes, the unit will display your temperature setting.
NOT E:
,
,
“ ”
A guide on using the infrared remote is not
included in this literature package.
When ECO function(optional) is activated, the
illuminates gradually one by one as --
-- --set temperature-- ...... in one second interval.

Unit
Specifications
and Features
Page 7 
Room
Temperature 17°-32°C (63°-90°F) O°-30°C (32°-86°F) 10°-32°C (50°-90°F)
Outdoor
Temperature
18°-43°C (64°-109°F)
-7°-24°C (19°-75°F)
11°-43°C (52°-109°F)
-7°-43°C (19°-109°F)
(For models with low-temp cooling systems) 18°-43°C (64°-109°F)
18°-52°C (64°-126°F)
(For special tropical models)
18°-52°C (64°-126°F)
(For special tropical models)
COOL mode HEAT mode DRY mode
COOL mode HEAT mode DRY mode
Room Temperature 17°C - 32°C
(63°F - 90°F)
0°C - 30°C
(32°F - 86°F)
10°C - 32°C
(50°F - 90°F)
Outdoor
Temperature
0°C - 50°C
(32°F - 122°F)
-15°C - 30°C
(5°F - 86°F)
0°C - 50°C
(32°F - 122°F)
-15°C - 50°C
(5°F - 122°F)
(For models with
low temp. cooling
systems.)
To further optimize the performance of your unit, do the following:
• Keep doors and windows closed.
• Limit energy usage by using TIMER ON and TIMER OFF functions.
• Do not block air inlets or outlets.
• Regularly inspect and clean air lters.
FOR UNITS WITH
AUXILARY ELECTRIC
HEATER
Achieving Optimal Performance
Optimal performance for the COOL, HEAT, and DRY modes can be achieved in the following
temperature ranges. When your air conditioner is used outside of these ranges, certain safety
protection features will activate and cause the unit to perform less than optimally.
Inverter Split Type
Fixed-speed Type
When outside
temperature is below 0°C
(32°F ), we strongly
recommend keeping the
unit plugged in at all
timers to ensure smooth
ongoing performance.

NOTE ON ILLUSTRATIONS
Illustrations in this manual are for explanatory purposes. The actual shape of your indoor unit may be
slightly dierent. The actual shape shall prevail.
For a detailed explanation of each function,
refer to the Remote Control Manual.
Other Features
• Auto-Restart
If the unit loses power, it will automatically
restart with the prior settings once power has
been restored.
• Anti-mildew (some units)
When turning o the unit from COOL, AUTO
(COOL), or DRY modes, the air conditioner will
continue operate at very low power to dry up
condensed water and prevent mildew growth.
Unit
Specifications
and Features
• Wi-Fi Control (some units)
Wi-Fi control allows you to control your air
conditioner using your mobile phone and a
Wi-Fi connection.
• Louver Angle Memory(some units)
When turning on your unit, the louver will
automatically resume its former angle.
• Refrigerant Leakage Detection (some
units)
The indoor unit will automatically display “EC”
when it detects refrigerant leakage.
For a detailed explanation of your unit’s
advanced functionality (such as TURBO mode
and its self-cleaning functions), refer to the
Remote Control Manual.
Page 8 

Page 9 
Setting vertical angle of air ow
While the unit is on, use the SWING /DIRECT
button to set the direction (vertical angle) of
airflow.
1. Press the SWING /DIRECT button once to
activate the louver. Each time you press
the button, it will adjust the louver by 6°.
Press the button until the direction you
prefer is reached.
2. To make the louver swing up and down
continuously, press and hold the SWING/
DIRECT button for 3 seconds. Press it
again to stop the automatic function.
The horizontal angle of the airow must be set
manually. Grip the deector rod (See Fig.2.3)
and manually adjust it to your preferred direction.
For some units, the horizontal angle of the airow
can be set by remote control. please refer to the
Remote Control Manual.
NOTE ON LOUVER ANGLES
When using COOL or DRY mode, do not set
louver at too vertical an angle for long periods
of time. This can cause water to condense on
the louver blade, which will drop on your floor
or furnishings. (See Fig. 2.2 )
When using COOL or HEAT mode, setting the
louver at too vertical an angle can reduce the
performance of the unit due to restricted air
flow.
Do not move louver by hand. This will cause the
louver to become out of sync. If this occurs, turn
o the unit and unplug it for a few seconds,
then restart the unit. This will reset the louver.
Fig. 2.2
CAUTION
Do not put your ngers in or near the blower
and suction side of the unit. The high-speed
fan inside the unit may cause injury.
Fig. 2.3
Setting Angle of Air Flow
Setting horizontal angle of air ow
•
Unit
Specifications
and Features

Page 10 
The SLEEP function is used to decrease energy
use while you sleep (and don’t need the same
temperature settings to stay comfortable). This
function can only be activated via remote control.
Press the SLEEP button when you are ready to
go to sleep. When in COOL mode, the unit will
increase the temperature by 1°C (2°F) after 1
hour, and will increase an additional 1°C (2°F)
after another hour. When in HEAT mode, the unit
will decrease the temperature by 1°C (2°F) after
1 hour, and will decrease an additional 1°C (2°F)
after another hour.
It will hold the new temperature for 7 hours, then
the unit will turn o automatically.
Note: The SLEEP function is not available in
FAN or DRY mode.
Sleep Operation
Set
temperature
Saving energy during sleep
1hr 1hr
7 hours
timer o
+/- 1 C/2 F
SLEEP Operation
+/- 1 C/2 F
Fig. 3.1
•
Unit
Specifications
and Features