note to installer: this manual should be left with the equipment user.
Contents
1. Puron the environmentally sound refrigerant 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 This unit utilizes Carrier s environmentally friendly Puron refrigerant Your new unit 1s among the most energy efficient and reliable air conditioning products available today To assure its depend ability 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 1s the safety alert symbolA When you see this symbol on the unit or 1n instructions and man uals be alert to the potential for personal injury Understand the signal word DANGER WARNING or CAU TION These works are used with the safety alert symbol DAN GER identifies the most serious hazards which will result in severe personal injury or death WARNING signifies hazards that could result in personal injury o2. When reinstalling cover plate secure plate behind upper flange then slide tabs outward The indoor fan coil unit may be located in the attic In this instance the filter could be located behind the return air grille Access the filter by removing two screws from return air grille ELECTRONIC AIR CLEANER If your system contains an Electronic Air Cleaner consult the User s Manual for specific care of that product INDOOR COIL If the split system coil has only been operated with a clean filter in place t should require minimal cleaning You may use a vac uum cleaner and soft brush attachment to remove any accumu lation of dust from the top and underside of the finned coll surface However only perform this maintenance when the coil is completely dry If coil cleaning 1s required call your dealer for service It may be necessary to clean the coil with a detergent solution and rinse it with water This could require the removal of the coil You should not attempt this yourself OUTDOOR COIL If grass clippings leaves shrubbery and debris are kept away from the outdoor unit minimal care should be sufficient to keep the system functioning properly For proper drainage debris must be removed periodically from the base pan However 1f the out door coil becomes dirty use a vacuum cleaner with soft brush attachment to clean the exterior surface Vacuum coil surface with an up and down motion Be careful not to bend or damage
3. 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 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 n 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 BUTTON RESTARTS THE TIMER THAT CALCULATES THE NEXT AIR FILTER CHANGE OR CLEANING FAN RIA HY ENTER UP AND DOWN BUTTONS INCREASE OR DECREASE THE DESIRED TEMPERATURE SETTINGS MODE BUTTON SELECTS BETWEEN OFF HEAT COOL AND AUTO OPERATION FAN BUTTON CHOOSES BETWEEN ON OR AUTO FAN OPERATION Fig 2 Typical 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 e
4. Your air conditioner will remove 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 1f you live in a very dry environment e Your unit is not designed to be operated when outdoor tem peratures are lower than 55 F without modification If opera tion below this temperature 1s required consult your installer PROGRAM BUTTONS FOR PROGRAMMING HEATING COOLING CYCLES OPERATION Mola dad MODE BUTTON SELECTS BETWEEN OFF HEAT COOL AND AUTO ASIE NOLO OUT QEF OPERATING YOUR AIR CONDITIONER The operation of your air conditioning system is controlled by the indoor thermostat You simply adjust the thermostat and 1t maintains the indoor temperature at the level you select Most thermostats have three controls a temperature control selector a FAN control anda SYSTEM or MODE control Fig 2 and 3 show typical Carrier thermostats The temperature control selector 1s a dial lever or set of buttons that allows you to select the temperature you wish to maintain for your personal comfort Some thermostats possess two temperature LCD READOUT DISPLAYS CURRENT ROOM TEMPERATURE DESIRED ROOM TEMPERATURE OR OUTDOOR TEMPERATURE UNIT MODE SETTING FAN MODE SETTING AND TIME OF DAY
5. ones Refer to your furnace User s Manual for spectfic information on heating operation NOTES a Two speed air conditioners operate for long periods of time on low speed This operation improves system efficiency and your comfort through closer control of temperature and humidity Expect longer operating cycles b With two speed air conditioners low and high indoor airflow settings are critical for maintaining system comfort and efficien cy Consult your installer for airflow setting adjustments PERFORMING ROUTINE MAINTENANCE With the proper maintenance and care your air conditioner will operate economically and dependably Maintenance can be accomplished easily by referring to the following directions Sa SA E TE SSO N ESAS SSO SSOSS ESOS Fig 5 Removing Filter from Fan Coil Unit However before performing maintenance consider these important safety precautions A WARNING To prevent personal injury or death disconnect all electrical power to the indoor air handler or furnace before removing access panels to per form maintenance Disconnect power to both the indoor and any outdoor units NOTE there may be more than 1 electrical disconnect switch A CAUTION Although special care has been taken to minimize sharp edges in the construction of your unit be extremely careful when handling parts or reach ing into the unit CHECK THE INDOOR AIR FILTER A dirty air filter will cause excessiv
6. WKE BAY EYE SEEP BA Nj GE FRIR WES An Thermosta i 9 16 je 627 if 5 a PROSERAMING jy BES LLERNALTER F RERI AKT BUTTON UP AND DOWN BUTTONS INCREASE OR DECREASE THE DESIRED TEMPERATURE SETTINGS FAN BUTTON CHOOSES BETWEEN ON OR AUTO FAN OPERATION HOLD BUTTON MAINTAINS THE CURRENT TEMPERATURE AND OVERRIDES PROGRAMMED TEMPERATURE CHANGES UNTIL RESET RESET FILTER BUTTON RESTARTS THE TIMER THAT CALCULATES THE NEXT AIR FILTER CHANGE OR CLEANING Fig 3 Typical Carrier Programmable Thermostat 3 MAIN OFF Fig 4 Main Electrical Disconnect control selectors one for setting the temperature desired during cooling operation and one for setting the temperature for heating operation The FAN control offers two options for controlling the blower AUTO and ON When set to AUTO the blower runs only while the thermostat operates the cooling or heating equipment When the FAN control 1s set to ON the blower runs continuously tegardless of whether the cooling or heating equipment 1s 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 or heating equipment operate when the SYSTEM or MODE control s set to OFF With the SYSTEM or MODE control set to COOL your air conditioner will operate when the indoor temperature rises above the level that y
7. e strain on the compressor and blower motor This can cause the components to overheat and automatically shut down In the worst case the components will fail and need to be replaced To avoid inefficient or failed operation of your unit CHECK THE FILTER S EVERY 3 TO 4 WEEKS Replace filter s when necessary or clean the filter s if you have the reusable type Disposable filters should be replaced by similar new filters of the same dimensions Reusable permanent filters should be washed in a solution of cold water and mild detergent then rinsed and thoroughly dried THE FILTER MUST BE COMPLETELY DRY BEFORE BEING REINSTALLED To avoid prolonged shutdown of your unit while a filter 1s drying you should have an extra filter on hand This allows you to rotate between the two with minimal downtime for your comfort system Extra filters may be purchased from your dealer There are no filters in the outdoor unit of a split system If your indoor unit is a gas or oil furnace refer to your furnace User s Manual for filter location and procedures for cleaning or replacement If your system includes an indoor fan coil unit the filter may be located n the unit where 1t connects with the return air duct or plenum See Fig 5 Remove the filter cover plate by sliding latches toward center of plate Lift filter to clear lower flange Filter 1s spring loaded and will pop out Reinstall filter being certain to secure filter behind lower flange
8. fins If dirt 1s deep n the coil contact your dealer for service The outdoor fan motor may have to be disconnected and the top panel removed to gain access to the coil for thorough cleaning Do not attempt this yourself OUTDOOR COIL SEA COAST If your unit 1s located near the ocean special maintenance 1s required Ocean mist breeze carries salt which is corrosive to most metals Although your new unit 1s made of galvanized metal and is protected by top grade paint you should take the precaution of additional maintenance which consists of periodically washing the unit By washing all exposed surfaces and coil approximately every 3 months you will be adding additional life to your unit Consult your installing contractor for proper intervals procedures for your geographic area or ser vice contract UNIT SUPPORT Your split system outdoor unit should be maintained 1n a level position If 1ts support should shift or settle so that the unit 1s no longer level you should correct the condition Relevel t promptly to assure proper water drainage out of the unit If you notice that water or 1ce collects beneath the unit arrange for 1t to be drained away from the unit BEFORE YOU REQUEST A SERVICE CALL CHECK FOR THESE EASILY SOLVED PROBLEMS e Check the indoor and outdoor disconnect switches Verify that circuit breakers are ON or that fuses have not blown e Check for sufficient airflow Check the air filter s for any accu
9. hould include the following e Routine inspection of air filter s Cleaning or replacement as required Inspection and cleaning of the blower wheel housing and motor e Inspection and if required cleaning of indoor and outdoor coils Inspection of the indoor coil drain pan plus the primary and secondary drain lines If supplied the auxiliary drain pan and line should be inspected at this time Service should include cleaning if required e A check of all electrical wiring and connections e A check for secure physical connections of individual com ponents within units e Operational check of the air conditioning system to determine actual working condition Necessary repair and or adjustment should be performed at this time Your servicing dealer may offer an economical service contract that covers seasonal inspections Ask for further details FOR THE RECORD Record the model product and serial numbers of your new equipment in the spaces provided on the last page of this Owner s Manual This information along with the other ready reference facts requested will be necessary should you ever require information or service INSTALLATION DATA MODULAR INDOOR UNIT if Applicable Date Installed _ gt Blower Product No Dealer Name O Model No Address gt Serial No City State GM Coil Product No Telephone Model No Serial No SPLIT SYSTEM OUTDOOR UNIT Heater Product No P
10. mulations of dirt Check for blocked return air or supply air registers Be sure registers are open and unobstructed e Check the settings on your indoor thermostat If you desire cooling make sure that the temperature control selector 1s set below room temperature and the SYSTEM or MODE control 1s set to COOL or AUTO If you require warmth be sure the tem perature control selector 1s set above room temperature and the SYSTEM or MODE control 1s set to HEAT or AUTO The FAN control should be set to ON for continuous blower operation or AUTO 1f you wish blower to function only while your heating or cooling equipment 1s operating e Check note concerning special features and time delays in Operating Your Air Conditioner section If your comfort system still fails to operate turn your system off and contact your servicing dealer for troubleshooting and repairs Specify your apparent problem and state the model and serial numbers of your equipment You should have them recorded the last page of this booklet With this information your dealer may be able to offer helpful suggestions over the phone or save valuable time through knowledgeable preparation for the service call REGULAR DEALER MAINTENANCE In addition to the routine mainte nance that you perform your home comfort system should be inspected regularly by a properly trained ser vice technician The mspection preferably each year but at least every other year s
11. ou wish to maintain With the SYSTEM or MODE control set to HEAT your furnace or other heating equipment will operate automatically when the indoor temperature falls below the level that you have selected The AUTO selection found on some thermostats provides for automatic changeover between cooling and heating modes With the SYSTEM or MODE control set to AUTO your air condi tioner will operate when the indoor temperature rises above the thermostat cooling temperature setting and your furnace or oth er heating equipment will operate when the indoor temperature drops below the thermostat setting for the heating cycle NOTE For 2 speed air conditioners this special feature 1s built n to protect the unit e 1 MINUTE TIME DELAY When changing speeds from low to high or high to low there 1s a 1 minute time delay During the speed change delay the oudoor fan will continue to run If you wish to program your accessory electronic indoor ther mostat refer to thermostat Installation Instructions Your thermostat may be PROGRAMMABLE or NON PRO GRAMMABLE A NON PROGRAMMABLE thermostat does not allow the temperature settings to be varied throughout the day or week without physically changing the settings A PROGRAM MABLE thermostat allows various daily temperature changes to be preset During the winter for example you may wish to set back the temperature of your home at night then have the tem perature return to normal prio
12. r death CAUTION 1s used to identify unsafe practices which would result in minor person al injury or product and property damage A WARNING improper installation adjustment alteration ser vice 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 as sistance The qualified installer or agency must use factory authorized kits or accessories when modifying this product I it i inl E Udo SM ul Fig 1 Typical Split System Installation A WARNING To prevent personal injury death or property damage read and follow all instructions and including labels shipped with or at warnings tached 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 type of air conditioner you have purchased 1s a split system The split system type has an indoor and an outdoor unit each of which contains a coil These units are interconnected by refrig erant tubes as shown 1n Fig 1 Each unit has a rating plate affixed to 1t which provides necessary information for specific identification of a unit You should familiarize yourself with
13. r to waking up The home s temper ature can then be lowered again during the day when no one 1s at home but again be at peak comfort level when your family returns home During the summer the opposite changes might be programmed When properly used the programming can result in energy savings on your home s heating and cooling COOLING MODE When operating n cooling mode your air conditioner will run until the indoor temperature 1s lowered to the level you have selected On extremely hot days your air conditioner will run for longer periods at a time and have shorter off periods than on moderate days The following are typical conditions that add extra heat and or humidity to your home and force your cooling unit to work longer to keep your home comfortable e Entrance doors are frequently opened and closed Laundry appliances are being operated A shower 1s running More than the usual number of people are present in the home More than the normal number of electric lights are n use Drapes are open on the sunny side of the home HEATING MODE With the SYSTEM or MODE control of your indoor thermostat set to HEAT the furnace or other heating equipment of your home comfort system will operate until room temperature 1s raised to the level you have selected Of course the heating equipment will have to operate for longer periods to maintain a comfortable environment on cooler days and nights than on moderate
14. roduct No Model No Model No Serial No Serial No ACCESSORIES INDOOR UNIT OR COIL Product No Product No SS Product No Model No Product No Serial No SS Product No Product No CID HEATING amp COOLING TO OBTAIN INFORMATION ON PARTS Consult your installing dealer or classified section of your local telephone directory under the Heating Equipment or Air Conditioning Contractors amp Systems heading for dealer listing by brand name Have available the Model No Series Letter amp Serial No of your equipment to ensure correct replacement part Printed on recycled paper Carrier Corporation e Indianapolis IN 46231 Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Copyright 2000 Carrier Corporation Form OM38 49 Replaces OM38 46 Printed in the U S A 05 00 PC 101 Catalog No 533 767
15. 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 e Your air conditioning system should never be operated without a clean ar filter properly installed Plan to inspect the filter peri odically A clogged aur 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 1tems commonly found obstructing registers 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 1t Do not allow grass clippings leaves or other debris to accumulate around or on top of the unit Maintain a 12 1n 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 e Thermostat jiggling causes rapid cycling which is poten tially damaging to the compressor Do not move the temperature
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