CARRIER
52F Series
OWNER’S GUIDE
READ AND SAVE THESE INSTRUCTIONS
AIR CONDITIONER
ROTARY CONTROL
P/N 852-102 (??/00)
Record Your Model and Serial Numbers
Product Registration
Record in the space provided below the model and serial numbers. Remove the
filter and look at the bottom edge of the air conditioner behind the front grille for
the model and serial numbers. Reading these numbers may be easier by using a
flashlight or by removing the cabinet front as instructed under “Care
and Cleaning.”
Model No. ____________________________________________________________
Serial No. _____________________________________________________________
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Warranty
Contents
3
Product Registration
Normal Sounds
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NOTE: This Owner’s Guide provides
specific operating instructions for your
model. Use the room air conditioner only
as instructed in this Owner’s Guide.
These instructions are not meant to
cover every possible condition and
situation that may occur. Common sense
and caution must be practiced when
installing, operating, and maintaining
any appliance.
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Important Safety Instructions
Energy Saving Ideas
Using Air Conditioner
Air Conditioner Features
Care and Cleaning
Avoid Service Checklist
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5
5-7
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Normal Sounds
High Pitched Chatter
Today’s high efficient
compressors may have a
high pitched chatter during
the cooling cycle.
Vibration
Unit may vibrate and make
noise because of poor wall
or window construction or
incorrect installation.
Sound of Rushing Air
At the front of the unit,
you may hear the sound
of rushing air being moved
by the fan.
Pinging or Swishing
Droplets of water hitting
condenser during normal
operation may cause
“pinging or swishing”
sounds.
Thermostat Clicking
Sound
As cooling systems cycle on
and off, you may hear a
“clicking” sound.
Gurgle/Hiss
“Gurgling or hissing”
noise may be heard due to refrigerant
passing through evaporation during normal
operation.
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Read all instructions before using this air conditioner.
Important Safety
Instructions
For Your Safety
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of
this or any other appliance. Read product labels for flammability and other warnings.
• Be sure to unplug the unit before cleaning or performing other
maintenance to prevent electric shock or fire which could cause serious
injury or death.
Prevent Accidents
To reduce the risk of fire, electrical shock, or injury to persons when using your air
conditioner, follow basic precautions, including the following:
• Be sure the electrical service is adequate for the model you have chosen. This
information can be found on the serial plate, which is located either on the side
of the cabinet or behind the grille.
• If the air conditioner is to be installed in a window, you will probably want to
clean both sides of the glass first. If the window is a triple-track type with a
screen panel included, remove the screen completely before installation.
• Be sure the air conditioner has been securely and correctly installed according to
the separate installation instructions provided with this manual. Save this manual
and the installation instructions for possible future use in removing or reinstalling
this unit.
Avoid fire hazard or
electric shock. Do not use an extension
cord or an adaptor plug. Do not remove
any prong from the power cord.
• When handling the air conditioner, be careful to avoid cuts from sharp metal fins
on front and rear coils.
Grounding type
wall receptacle
Electrical Information
The complete electrical rating of your new room air conditioner is stated on the
serial plate. Refer to the rating when checking the electrical requirements.
• Be sure the air conditioner is properly grounded. To minimize shock and fire
hazards, proper grounding is important. The power cord is equipped with a
three-prong grounding plug for protection against shock hazards.
• Your air conditioner must be used in a properly grounded wall receptacle. If the
wall receptacle you intend to use is not adequately grounded or protected by a
time delay fuse or circuit breaker, have a qualified electrician install the proper
receptacle.
Do not, under
any circumstances,
cut, remove,
or bypass the
grounding prong.
• Do not run air conditioner with outside protective cover in place. This could result
in mechanical damage within the air conditioner.
• Do not use an extension cord or an adapter plug.
• Do not block air flow inside with blinds, curtains or furniture; or
outside with shrubs, enclosures, or other buildings.
• The capacity of the room air conditioner must fit the room size for efficient and
satisfactory operation.
Energy Saving Ideas
• Install the room air conditioner on the shady side of your home. A window that
faces north is best because it is shaded most of the day.
• Close the fireplace damper, floor and wall registers so cool air does not escape
up the chimney and into the duct work.
• Keep blinds and drapes in other windows closed during the sunniest part of the
day.
• Clean the air filter as recommended in the section “Care and Cleaning.”
• Proper insulation and water stripping in your home will help keep warm air out
and cool air in.
• External house shading with trees, plants or awnings will help reduce the air
conditioner’s work load.
• Operate heat producing appliances such as ranges, washers, dryers and
dishwashers during the coolest part of the day.
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To reduce the risk of fire, electric shock, or injury to persons, read
the IMPORTANT SAFETY INSTRUCTIONS before operating this appliance.
Using Air Conditioner
To begin operating the air conditioner, follow these steps:
1. Plug in the air conditioner. (To prevent electrical hazards, do not use an extension
cord or an adapter plug.)
NOTE: If the air conditioner is turned off,
wait 3 minutes before restarting. This
allows pressure inside the compressor to
equalize. Failure to follow these
instructions may cause inefficient
operation.
2. Set the thermostat to the highest number (coldest or cooler setting).
3. Set the selector control to the highest FAN or COOL setting (see below).
4. Adjust the louvers for comfortable air flow (see Air Directional Louvers).
5. Once the room has cooled, adjust the thermostat to the setting you find most
comfortable.
Review the “Air Conditioner Features” section for other settings.
The controls featured in this manual are representational of the many models
available. Your model may offer slightly different features.
Air Conditioner Features
Selector Control
The selector control turns the unit on or off and allows a choice of either cooling
room air, circulating room air at the existing temperature, or heating room air.
COOL/FAN
Operate COOL/FAN modes according to the following suggestions:
• ON/OFF or OFF = Turns air conditioner on and off.
• HIGH COOL = Maximum cooling speed. Begin operation of the air conditioner in
this mode.
• LOW COOL = Fan runs slow for quiet operation when maximum cooling is not
needed.
• HIGH FAN = Maximum air circulation without cooling.
• LOW FAN = Slow air circulation without cooling.
HEAT
The HEAT selection provides quiet, efficient circulation of warm air. Turn the selector
to the HEAT setting and set the thermostat at WARMER setting. When the HEAT
setting is selected, the thermostat maintains the temperature by automatically
turning the heater on and off in response to room temperature. The fan runs
continuously to circulate air in the room.
Once the room is warm, adjust the thermostat to a less warm position. This provides
less heat, or cooler temperatures.
A slight heat odor may come from the unit when first switching to HEAT after the
cooling season is over. This odor, caused by fine dust particles on the heater, will
disappear quickly.
Automatic Thermostat
When a COOL or HEAT setting is selected, the thermostat controls the amount of
cooling or heating by automatically turning the cooling compressor or heater on
and off in response to the room temperature.
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Automatic Thermostat (continued)
Air Conditioner Features
(continued)
Set the thermostat at the COOLER setting for cooling, and the warmer setting in
the HEAT mode. Once the room has reached the desired temperature, adjust the
thermostat to a setting providing the most comfortable amount of cooling or
heating. COOLER provides lower room temperatures. WARMER provides higher
room temperatures.
Night Time Cooling
When outside temperatures drop below 70°F (21°C) and the unit is cooling, frost
may form on the coils and block airflow into the room. If this occurs, operate the
air conditioner on the FAN setting to defrost the coil.
If cooling while the outside temperature is low, set the thermostat to the middle
position. Make sure the louvers are open. This will help prevent frost build-up.
Air Directional Louvers
Air directional louvers control air flow direction.
4-Way Louvers
The 4-Way air directional louvers allow you to direct air flow up or down, left or
right throughout the room as needed. To adjust the air directional louvers side-to-
side, use the center handle as you move it side-to-side.
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Clean your air conditioner occasionally to keep it looking new.
Be sure to unplug the unit before cleaning to prevent
electric shock or fire hazards.
Care and Cleaning
Air Filter Cleaning
The air filter should be checked at least once a month to see if cleaning is necessary.
Trapped particles in the filter can build up and cause an accumulation of frost on
the cooling coils.
• Tilt the Horizontal Louvers in the UP position, before pulling the filter out.
• Grasp the filter by the center and pull up and out.
• Wash the filter using liquid dishwashing detergent and warm water. Rinse filter
thoroughly. Gently shake excess water from the filter. Be sure filter is thoroughly
dry before replacing.
• Or, instead of washing you may vacuum the filter clean.
Cabinet Cleaning
• Be sure to unplug the air conditioner to prevent shock or fire hazard. The cabinet and
front may be dusted with an oil-free cloth or washed with a cloth dampened in a
solution of warm water and mild liquid dishwashing detergent. Rinse thoroughly and
wipe dry.
• Never use harsh cleaners, wax or polish on the cabinet front.
• Be sure to wring excess water from the cloth before wiping around the controls.
Excess water in or around the controls may cause damage to the air conditioner.
• The cabinet front can be removed for more thorough cleaning. Refer to “Front
Removal” in this manual.
• Clean the front in a sink using liquid dishwashing detergent and warm water. Rinse
thoroughly and dry.
• Replace cabinet front. Replace the screws.
• Replace front panel (if applicable) and filter. Plug in air conditioner.
Front Removal
To remove the front for more thorough cleaning follow these steps:
• Unplug power cord from the wall outlet.
• Remove knobs by firmly pulling (these knobs are interchangeable).
• Remove the filter to expose the two (2) screws holding the front in place.
• Remove the two (2) screws and save for replacing.
• Press firmly on each side of the cabinet close to the front, approximately half way
down.
• While pressing on the sides of the cabinet, gently pull the front out and lift up to
release it from the cabinet.
• Clean as instructed in Care and Cleaning. Reinstall the front when dry by reversing the
above instructions.
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Before calling for service, review this list. It may save you time and expense. This
list includes common occurrences that are not the result of defective workman-
ship or materials in this appliance.
Avoid Service Checklist
OCCURRENCE
SOLUTION
Air conditioner will not operate.
Wall plug disconnected. Push plug firmly into wall outlet.
House fuse blown or circuit breaker tripped. Replace fuse with time delay type or reset circuit
breaker.
Selector Control in OFF position. Turn selector to ON (some models) or the desired FAN or COOL
setting.
Unit turned off by moving thermostat to a higher number and then immediately turning back to
a colder number. Wait approximately 3 minutes. Listen for compressor to start.
Unit turned off and then on too quickly. Turn unit off and wait 3 minutes before restarting.
Thermostat set too low. Adjust thermostat to higher number for cooling.
Turn selector to a higher FAN or COOL position
Air from unit does not feel cold
enough.
Thermostat set too warm. Set thermostat to colder temperature.
Room temperature below 70°F (21°C). Cooling may not occur until room temperature rises above
70°F (21°C).
Temperature sensing tube touching cold coil, located behind air filter. Straighten tube away from coil.
Air conditioner cooling, but room is
too warm — ice forming on cooling
coil behind decorative front.
Outdoor temperature below 70°F (21°C). To defrost the coil, set selector to FAN position. Then,
set thermostat to warmer position.
Air filter may be dirty. Clean filter. Refer to Care and Cleaning section. To defrost, set selector to
FAN.
Thermostat set too cold for night-time cooling. To defrost the coil, set selector to a FAN position.
Then, set thermostat to a warmer position.
Air conditioner cooling, but room is
too warm — NO ice forming on
cooling coil behind decorative front.
Dirty air filter — air restricted. Clean air filter. Refer to Care and Cleaning section.
Thermostat set too warm. Turn thermostat clockwise to a colder setting.
Thermostat set on low number. Turn thermostat to higher number.
Air directional louvres positioned improperly. Position louvres for better air distribution.
Front of unit is blocked by drapes, blinds, furniture, etc. — restricts air distribution. Clear blockage
in front of unit.
Doors, windows, registers, etc. open — cold air escapes. Close doors, windows, registers, etc.
Unit recently turned on in hot room. Allow additional time to remove “stored heat” from walls,
ceiling, floor and furniture.
Air conditioner turns on and off
rapidly.
Dirty air filter — air restricted. Clean air filter.
Outside temperature extremely hot. Set FAN on high speed to bring air past cooling coils more
frequently.
Noise when unit is cooling.
Air movement sound. This is normal. If too loud, turn selector to lower FAN setting.
Sound of fan hitting water-moisture removal system. This is normal when humidity is high. Close
doors, windows and registers.
Water dripping INSIDE when unit is
cooling.
Improper installation. Refer to installation instructions — check with installer.
Water dripping OUTSIDE when unit is Unit removing large quantity of moisture from humid room. This is normal during excessively
cooling. humid days.
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