Window/wall type room air conditioner, Normal sounds air conditioner features, Normal sounds – Comfort-Aire CD-121J User Manual
Page 6: 6air conditioner features, Electronic control operating instructions, Unit control panel(1) unit control panel(2)

NORMAL SOUNDS
AIR CONDITIONER FEATURES
Sound of Rushing Air
At the front of the unit, you may
hear the sound of rushing air
being moved by the fan
High Pitched Chatter
High efficiency compressors
may have a high pitched chatter
during the cooling cycle.
Gurgle/Hiss
Gurgling or hissing noise may
be heard due to refrigerant
passing through evaporator
during normal operation.
Pinging or Switching
Droplets of water hitting condenser
during normal operation may cause
pinging or switching sounds.
Before you begin, thoroughly familiarize yourself with the control panel and remote as shown below
and all its functions, then follow the symbol for the functions you desire. The unit can be controlled
by the unit control alone or with the remote.
Vibration
Unit may vibrate and make noise
because of poor wall or window
construction or incorrect installation.
ELECTRONIC CONTROL OPERATING INSTRUCTIONS
ADJUSTS
TEMPERATURE
OR TIME
ADJUSTS
TEMPERATURE
OR TIME
DISPLAYS
TEMPERATURE
OR TIME
ACTIVATES
TIMER
CHECK FILTER
RESET BUTTON
SETS MODE
ENERGY
SAVER MODE
SLEEP MODE
CLEAN AIR MODE
(on some models)
SET FAN SPEED
TURNS UNIT
ON OR OFF
UNIT CONTROL
Temp
Temp
Timer
Timer
On
Off
Sleep
Check
Filter
Timer
Auto
Cool
Dry
Fan
Low
Auto
Med
High
Clean
Air
Fan
Mode
Follow
Me
Energy
Saver
On/Off
5
FOLLOW ME INDICATOR
(on some models)
Before using your air conditioner, please read
this manual carefully and keep it for future reference.
WINDOW/WALL TYPE
ROOM AIR CONDITIONER
-
MULTI-STEP SPEED ELECTRONIC CONTROL
THIS AIR CONDITIONER IS EQUIPPED WITH A NEW INDUSTRY
STANDARD POWER SUPPLY CORD WITH A TEST-RESET FUNCTION
Owner’s Manual
Room Air Conditioner with R-410A
Heat Controller, Inc.
5
Unit may vibrate and make noise
because of poor wall or window
construction or incorrect installation.
Swishing
swishing
Normal sounds
Sound of Rushing Air
At the front of the unit, you may
hear the sound of rushing air
being moved by the fan
High Pitched Chatter
High efficiency compressors
may have a high pitched chatter
during the cooling cycle.
Gurgle/Hiss
Gurgling or hissing noise may
be heard due to refrigerant
passing through evaporator
during normal operation.
Pinging or Switching
Droplets of water hitting condenser
during normal operation may cause
pinging or switching sounds.
Before you begin, thoroughly familiarize yourself with the control panels as shown below and all the
functions, then follow the symbol for the functions you desire. The unit can be controlled by the
unit control alone or with the remote controller.
Vibration
Unit may vibrate and make noise
because of poor wall or window
construction or incorrect installation.
ELECTRONIC CONTROL OPERATING INSTRUCTIONS
Exhaust Selector
Sets Mode
Temp./Timer
Adjustment
Energy Saver
Mode
Activates Timer
Sleep Mode
Activates Check
Filter
Sets Fan
Speed
Turns Unit
On/ Off
Remote Signal
Receptor
6
AIR CONDITIONER FEATURES
EXHAUST
Closed
Open
MODE
ENERGY
SAVER
SLEEP
CLEAN
UP
DOWN
FAN
ON/OFF
Follow me
CHECK
FILTER
TIMER
Auto Low Med High
Auto Cool Dry Fan
ON OFF
S
EXHAUST
Closed
Open
MODE
ENERGY
SAVER
SLEEP
CLEAN
AIR
UP
DOWN
FAN
ON/OFF
Follow me
CHECK
FILTER
TIMER
Auto Low
Med High
Auto Cool
Dry
Fan
ON OFF
S
Clean air mode
(on some models)
Follow me
Indicator
(on some models)
EXHAUST
Closed
Open
MODE
SLEEP
CLEAN
AIR
UP
DOWN
FAN
ON/OFF
Follow me
CHECK
FILTER
TIMER
Auto Low Med High
Auto Cool Dry
Fan
ENERGY
SAVER
On
Off
S
Unit control panel(1)
Unit control panel(2)
Before you begin, thoroughly familiarize yourself with the control panel as shown below and all
its functions, then follow the symbol for the functions you desire.
The unit can be controlled by
the unit control alone or with the remote.