Carrier 38CKC036, 38CKC, 38CKC048, 38CKC042 User Manual

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Carrier 38CKC036, 38CKC, 38CKC048, 38CKC042 User Manual

CENTRAL AIR CONDITIONER

A GUIDE TO OPERATING AND MAINTAINING YOUR RESIDENTIAL AIR CONDITIONING UNIT.

NOTE TO INSTALLER: THIS MANUAL SHOULD BE LEFT WITH THE EQUIPMENT USER.

WELCOME TO EFFICIENT HOME COOLING COMFORT

Congratulations on your excellent choice and sound investment in home cooling comfort!

Your new air conditioning unit represents both the latest in engineering development and the culmination of many years of experience from one of the most reputable manufacturers of comfort systems.

Your new unit is among the most energy-efficient and reliable air conditioning products available today. To assure its dependability, spend just a few minutes with this booklet now. Learn about the operation of your air conditioner, and the small amount of maintenance it takes to keep it operating at its peak efficiency.

With minimal care, your new air conditioner will provide you and your family with cool comfort—both now and for years to come.

SAFETY CONSIDERATION

Recognize safety information. This is the safety-alert symbol ! . When you see this symbol on the unit or in instructions and manuals, be alert to the potential for personal injury.

Understand the signal word DANGER, WARNING, or CAUTION. These words are used with the safety-alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards that could result in personal injury or death. CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage.

! WARNING

Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product.

Fig.1—Typical Split-System Installation

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! WARNING

To prevent personal injury, death, or property damage, read and follow all instructions and warnings, including labels shipped with or attached to the unit before operating your new air conditioner.

YOUR COMFORT SYSTEM

Identifying Your System

Take the time to familiarize yourself with the type of system you have. This knowledge will be of use in understanding the basic operation of your new air conditioner.

The split-system type has an indoor and an outdoor unit, each of which contains a coil. These units are interconnected by refrigerant tubes. (See Fig. 1.)

Each unit has a rating plate affixed to it which provides necessary information for specific identification of a unit. You should familiarize yourself with the product, model, and serial numbers listed on each rating plate. Record them for future reference on the last page of this booklet.

IMPORTANT FACTS

To better protect your investment and to eliminate unnecessary service calls, familiarize yourself with the following facts:

Your air conditioning system should never be operated without a clean air filter properly installed. Plan to inspect the filter periodically. A clogged air filter will increase operating costs and shorten the life of the unit.

Supply-air and return-air registers should not be blocked. Drapes, furniture, and toys are some of the items commonly found obstructing grilles. Restricted airflow lessens the unit’s efficiency and life span.

The outdoor unit must have unrestricted airflow. Do not cover the unit, lean anything against it, or stand on it. Do not allow grass clippings, leaves, or other debris to accumulate around or on top of the unit. Maintain a 12-in. minimum clearance between the outdoor unit and tall grass, vines, shrubs, etc.

Your multipurpose indoor thermostat is the control center for your air conditioning system. You should familiarize yourself with its proper operation. Attempting to control the system by other means—for instance, switching the electrical supply power ON and OFF—may cause damage to the unit.

Thermostat “jiggling” causes rapid-cycling, which is potentially damaging to the compressor. Do not move the temperature selector on the thermostat for any reason for at least 5 minutes after the compressor has shut off.

You may find that you can maintain greater personal comfort by running the fan continuously. Air pockets can form due to the structure of the house, placement of registers, etc. These air pockets may be too cool or warm for your liking. Continuous fan operation minimizes any temperature differences. Also, systems equipped with electronic or mechanical air cleaners and/or humidifiers offer the added benefits of having the air continuously cleaned year-round, and humidified during the winter season.

A system equipped with a heat or energy recovery ventilator offers the advantage of exhausting stale air from the home and allowing fresh air in from the outdoors while minimizing heat loss.

LCD READOUT DISPLAYS CURRENT ROOM TEMPERATURE, DESIRED ROOM TEMPERATURE, UNIT MODE SETTING, AND FAN MODE SETTING

Thermostat

RESET/FILTER

FAN

MODE

UP AND DOWN BUTTONS INCREASE OR DECREASE THE

DESIRED TEMPERATURE SETTINGS

 

MODE BUTTON SELECTS

 

BETWEEN OFF, HEAT,

 

COOL, AND AUTO OPERATION

RESET FILTER BUTTON

FAN BUTTON CHOOSES

RESTARTS THE TIMER

BETWEEN ON OR AUTO

THAT CALCULATES

FAN OPERATION

THE NEXT AIR FILTER

 

CHANGE OR CLEANING

 

Fig. 2—Carrier Non-Programmable Thermostat

Your system may also be equipped with a zoning system which allows individual control over the temperatures of separate areas of your home.

Your air conditioner removes humidity from your home during the cooling season. After a few minutes of operation, you should be able to see water trickle from the condensate drain of the cooling coil. Check this occasionally to be sure the drain system is not clogged. Of course, don’t expect to see much drainage if you live in a very dry environment.

Do not operate your unit when outdoor temperatures are below 55°F.

OPERATING YOUR AIR CONDITIONER

The operation of your air conditioning system is controlled by the indoor thermostat. You simply adjust the thermostat and it maintains the indoor temperature at the level you select. Most

thermostats have three controls: a temperature control selector, a FAN control, and a SYSTEM or MODE control.

The temperature control selector can be a dial, lever, or set of buttons that allows you to establish the degree of temperature you wish to maintain for your personal comfort. Some thermostats possess two temperature control selectors: one for setting the temperature desired for cooling operation, and one for setting the temperature desired for heating operation.

The FAN control offers two options for controlling the indoor blower: AUTO and ON. When set to AUTO, the blower runs only while the thermostat operates the cooling or heating equipment. When set to ON, the blower runs continuously—regard- less of whether the cooling or heating equipment is operating.

Typically, the SYSTEM or MODE control on your thermostat offers the following selections: COOL, OFF, and HEAT. Your thermostat may also have a fourth selection, AUTO. Neither the cooling nor heating equipment will operate when the SYSTEM

 

MODE BUTTON SELECTS

 

BETWEEN OFF, HEAT,

PROGRAM BUTTONS

COOL, AND AUTO

FOR PROGRAMMING

OPERATION

HEATING/COOLING

 

CYCLES

 

LCD READOUT DISPLAYS CURRENT ROOM TEMPERATURE, DESIRED ROOM TEMPERATURE OR OUTDOOR TEMPERATURE, UNIT MODE SETTING,

FAN MODE SETTING, AND TIME OF DAY

Programmable

 

 

Thermostat

 

 

COPY PREVIOUS DAY

PROGRAM

MODE

CHANGE DAY

END

FAN

SET TIME/TEMP

RESET FILTER

HOLD

RESET FILTER

HOLD

UP AND DOWN BUTTONS INCREASE OR DECREASE THE

DESIRED TEMPERATURE SETTINGS

SET TIME

BUTTON

RESET FILTER BUTTON RESTARTS THE TIMER THAT CALCULATES THE NEXT AIR FILTER CHANGE OR CLEANING

FAN BUTTON CHOOSES

BETWEEN ON OR AUTO

FAN OPERATION

HOLD BUTTON MAINTAINS THE CURRENT TEMPERATURE

AND OVERRIDES PROGRAMMED TEMPERATURE CHANGES UNTIL RESET

Fig. 3—Carrier Programmable Thermostat

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