note to installer: this manual should be left with the equipment user.
Contents
1. ae y the environmentally sound refrigerant NOTE TO INSTALLER THIS MANUAL SHOULD BE LEFT WITH THE EQUIPMENT USER WELCOME TO EFFICIENT YEAR ROUND COMFORT Congratulations on your excellent choice and sound invest ment in year round home comfort Your new heat pump 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 unit utilizes Carrier s environmentally sound Puron refrigerant Your new unit is among the most energy efficient and reliable heat pump products available today To assure its dependabil ity spend just afew minutes with this booklet now Learn about the operation of your heat pump and the small amount of maintenance it takes to keep it operating at its peak efficiency With minimal care your new heat pump will provide you and your family with year round home comfort both now and for years to come SAFETY CONSIDERATIONS Rec2. above the thermo stat cooling temperature setting or heating operation is acti vated when the indoor temperature drops below the thermostat heating setting Depending on your typical winter heating needs your home comfort system may include a supplementary heating source The EMERGENCY HEAT setting EHEAT provides for con venient selection between the two heating appliances Your heat pump will operate when the SYSTEM or MODE control is set to HEAT With the SYSTEM or MODE control set to EHEAT the heat pump will turn off and the supplementary heat source will be activated FOR 2 SPEED UNIT INSTALLATIONS Your heat pump system has several special features built in to protect the unit e 5 MINUTE TIME DELAY Unit will delay operation upon initial start up or short cycling of the indoor thermostat e I MINUTE TIME DELAY When changing speeds from low to high or high to low there is a 1 minute time delay During the speed change delay the outdoor fan will continue to run e I MINUTE HIGH SPEED MINIMUM If the unit has not operated within the past 12 hours or has a power inter ruption upon the next cooling demand it will operate for a minimum of minute on high speed In certain geographic areas and in certain applications sup plemental heat is not required Any questions regarding your application should be directed to your dealer Your thermostat may be PROGRAMMABLE or NON PROGRAMMABLE A NON PROGRAMMABLE thermo st
3. per sonal injury or death 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 reaching into the unit Failure to follow this caution could result in minor personal injury or product and property damage CHECK THE AIR FILTER A dirty air filter will cause excessive strain on the compressor and blower motor This can cause the components to over heat and automatically shut down In the worst case the compo nents 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 shut down of your unit while a filter is 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 replacement or cleani
4. warm to keep you comfortable e Ice or frost will tend to form on the outdoor coil during the winter heating operation Your heat pump is designed to auto matically melt the ice When in this defrost cycle it is normal for steam or fog to rise from the outdoor unit Do not be alarmed e Do not operate your unit in cooling mode when outdoor temperatures are below 55 F unless your unit was modified for low ambient operation e Do not operate your unit in heating mode when outdoor temperatures are above 66 F unless you set your thermostat to emergency heat mode LCD READOUT DISPLAYS CURRENT ROOM TEMPERATURE DESIRED ROOM TEMPERATURE OR OUTDOOR TEMPERATURE UNIT MODE SETTING FAN MODE SETTING AND TIME OF DAY i Programmable i hermostat 7 an UP AND DOWN BUTTONS INCREASE OR DECREASE THE DESIRED TEMPERATURE SETTINGS 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 Typical Carrier Programmable Thermostat 3 OPERATING YOUR HEAT PUMP The operation of your heat pump 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 for heat pump systems have
5. GULAR DEALER MAINTENANCE In addition to the routine mainte nance that you perform your home comfort system should be inspect ed regularly by a properly trained service technician The inspection preferably twice each year but at least once every year should include the following e Routine inspection of air filter s Replacement or cleaning as required e Inspection and cleaning of the blower wheel housing and motor as required e Inspection and if required cleaning of indoor and outdoor coils e 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 heat pump system to determine actual working condition Necessary repair and or adjustment should be performed at this time e 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 This information along with the other ready reference facts requested will be necessary should you ever require information or service INSTALLATION DATA Date Installed Dealer Name Address City
6. N PUIK HT ERTER UP AND DOWN BUTTONS INCREASE OR DECREASE THE DESIRED TEMPERATURE SETTINGS MODE BUTTON SELECTS BETWEEN OFF HEAT COOL AUTO AND EMERGENCY HEAT OPERATION RESET FILTER BUTTON RESTARTS THE TIMER THAT CALCULATES THE NEXT AIR FILTER CHANGE OR CLEANING FAN BUTTON CHOOSES BETWEEN ON OR AUTO FAN OPERATION Fig 2 Typical Carrier Non Programmable Thermostat e Your system may also be equipped with a zoning system which allows individual control over the temperatures of sep arate areas of your home e Your heat pump will remove humidity from your home dur ing the cooling season After a few minutes of operation you should be able to see water trickle from the condensate drain of the indoor 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 e During the heating cycle air from your registers may seem cooler than you might first expect This is because your heat pump delivers a constant flow of air at around 90 F to 105 F instead of in sudden bursts of hot air as with a conventional furnace This air may feel cool because it is slightly less than PROGRAM BUTTONS FOR PROGRAMMING HEATING COOLING CYCLES OPERATION MODE BUTTON SELECTS BETWEEN OFF HEAT COOL AUTO AND EMERGENCY HEAT your skin temperature However it is sufficiently
7. State Zip Telephone SPLIT SYSTEM Outdoor Unit Product No Model No Serial No Indoor Unit or Coil Product No Model No Serial No MODULAR INDOOR UNIT if Applicable Blower Product No Model No Serial No Coil Product No Model No Serial No Heater Product No Model No Serial No ACCESSORIES Product No Product No Product No Product No Product No 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 Carrier Corporation Indianapolis Indiana 46231 Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Copyright 2003 Carrier Corporation Form OM38 55 Printed in the U S A 04 03 PC 101 Catalog No 533 80097
8. ally turn on the supplemental heat in order to maintain the level of comfort your have selected DEFROST MODE When your heat pump is providing heat to your home and the outdoor temperature drops below 45 F moisture may begin to freeze on the surface of the outdoor coil If allowed to build up this ice would impede airflow across the coil and reduce the amount of heat absorbed from the outside air So to maintain energy efficient operation your heat pump has an automatic defrost mode The defrost mode starts at a preset time interval of 90 minutes although it may be reset to either 30 60 or 120 minutes Defrost will start at the preset time only if the ice is sufficient to interfere with normal heating operation After the ice is melted from the outdoor coil or after a maxi mum of 10 minutes in defrost mode the unit automatically switches back to normal heating operation The fan will resume normal operation after a 20 second delay Do not be alarmed if steam or fog appears at the outdoor unit during defrost mode Water vapor from the melting ice may condense into a mist in the cold outside air During certain weather conditions such as heavy snow and freezing rain it is not uncommon for ice to build up on the outdoor unit grille This is normal for these weather conditions Do not attempt to remove the ice from the outdoor unit grille This condition will not affect the proper function of the unit and will clear within a few da
9. at See Fig 2 does not allow the temperature settings to be varied throughout the day or week without physically changing the settings A PROGRAMMABLE thermostat See Fig 3 allows various daily temperature changes to be preset During the winter for example you may wish to set back the tem perature of your home at night then have the temperature return to normal prior to waking up The home s temperature can then be lowered again during the day when no one is 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 If you wish to program your accessory electronic indoor ther mostat please refer to thermostat Owner s Manual COOLING MODE When operating in cooling mode your heat pump will run in cooling mode until the indoor temperature is lowered to the level you have selected On extremely hot days your heat pump will run for longer periods at a time and have shorter off periods than on moderate days FOR 2 SPEED UNIT INSTALLATIONS Your heat pump spends about 80 of its time operation in low speed cool ing This means that it will operate for longer periods of time than a single speed heat pump even on moderate days This longer operational time in low speed results in higher effi ciency operation lower operating noise and better humidit
10. inimum clearance between the outdoor unit and tall grass vines shrubs etc e Your multipurpose indoor thermostat is the control center for your heat pump system You should familiarize yourself with its proper operation See Fig 2 and 3 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 During heating increasing the thermostat setting more than 2 degrees may cause the supplemental heaters to be turned on to satisfy the thermostat Needless use of the supplementary heat reduces potential energy savings e You may find that you can maintain greater personal com fort 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 Continu ous 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 e 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 te Thermostat ER
11. nd 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 accumulations 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 is set below room temperature and the SYSTEM or MODE control is set to COOL or AUTO If you require warmth make sure that the temperature control selector is set above room temper ature and the SYSTEM or MODE control is set to HEAT or AUTO The FAN control should be set to ON for continuous blower operation or AUTO if you wish blower to function only while your heat pump is operating e Check note concerning special features and time delays in Operating Your Heat Pump 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 on the last page of this booklet With this informa tion your dealer may be able to offer helpful suggestions over the phone or save valuable time through knowledgeable prep aration for the service call RE
12. ng If your system includes an indoor fan coil unit the filter may be located in the unit where it 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 is spring loaded and will pop out Reinstall filter being cer tain to secure filter behind lower flange 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 may be located behind the return air grille Access the filter by removing the return air grille If your system includes a high efficiency or electronic air cleaner refer to air cleaner User s Manual for proper filter cleaning or replacement Fig 5 Removing Filter from Fan Coil Unit INDOOR COIL If the indoor coil has only been operated with a clean filter in place it should require minimal cleaning If coil cleaning is 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 How eve
13. ognize safety information This is the safety alert symbol Z When you see this symbol on the unit and in instructions or manuals be alert to the potential for personal injury Understand the signal words DANGER WARNING and 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 which 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 NOTE is used to highlight suggestions that will result in enhanced installation reliability or operation 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 service agency must use factory authorized kits or accessories when modifying this product Fig 1 Typical Split System Installation A WARNING To prevent personal injury death or property damage read and follow all instructions and warn ings including labels shipped with or attached to unit before operating your new heat pump YOUR COMFORT SYSTEM Identifying Your System Take the time to familiarize y
14. ourself with the type of system you have This knowledge will be of use in understanding the basic operation of your new heat pump The type of heat pump you have purchased is 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 refrigerant tubes See Fig 1 Each unit has a rating plate affixed to it which provides neces sary information for specific identification of a unit You should familiarize yourself with the product model and serial num bers listed on each rating plate Record them for future refer ence 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 heat pump system should never be operated without a clean air filter properly installed Plan to inspect the filter peri odically A clogged air filter will increase operating costs and shorten the life of the unit e Supply air and return air registers should not be blocked Drapes furniture and toys are some of the items commonly found obstructing registers Restricted airflow lessens the unit s efficiency and life span The outdoor unit must have unrestricted airflow Do not cov er 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 m
15. r if the outdoor coil becomes dirty use a vacuum cleaner or shop vac with soft brush attachment to clean the exterior surface Vacuum coil surface using an up and down motion Be careful not to bend or damage fins If dirt is deep in 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 is located near the ocean special maintenance is required Ocean mist breeze carries salt which is corrosive to most metals Although your new unitis made out of galvanized metal and is protected by top grade paint you should take the precaution of additional maintenance which consists of peri odically washing the unit By washing all exposed surfaces and coil you will be adding additional life to your unit Please con sult your installing contractor for proper intervals procedures for your geographic area or service contact UNIT SUPPORT Your split system outdoor unit should be maintained at a level position fits support should shift or settle so that the unit is no longer level you should correct the condition Relevel it promptly to assure water drains out of the unit If you notice that water or ice collects beneath the unit arrange for it to be drained away from the unit Heat pumps installed in snowbelt areas should be elevated with support feet or a snow sta
16. three controls a tem perature control selector a FAN control and a SYSTEM or MODE control The temperature control selector is a dial lever or set of but tons that allows you to establish the temperature that you wish to maintain for your personal comfort Some thermostats have two temperature control selectors one for setting the temper ature desired during cooling operation and one for setting the temperature desired during heating operation The FAN control offers 2 options for controlling the blower AUTO and ON When set to AUTO the blower runs only when the heat pump is operating When set to ON position the blower runs continuously Typically the SYSTEM or MODE control on your thermostat offers the following selections COOL OFF HEAT AUTO and EMERGENCY HEAT Some thermostats may have a sep arate switch for EMERGENCY HEAT The heat pump will not operate when the SYSTEM OR MODE control is set to OFF With the SYSTEM or MODE control set to COOL your heat pump will provide cooling when the indoor temperature rises above the level you wish to maintain With the SYSTEM or MODE control set to HEAT your heat pump will provide warmth whenever 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 With the SYSTEM or MODE control set to AUTO cooling operation is activated when the indoor temperature rises
17. y control than a single speed heat pump could achieve The following are typical conditions that add extra heat and or humidity to your home Your heat pump will work longer to keep your home comfortable under these conditions e Entrance doors are frequently opened and closed e Laundry appliances are being operated e A shower is running e More than the usual number of people are present in the home e More than the normal number of electric lights are in use Drapes are open on the sunny side of the home HEATING MODE With the SYSTEM or MODE control of your indoor thermo stat set to HEAT your heat pump will run in heating mode until room temperature is raised to the level you have selected Of course your heat pump will have to operate for longer periods to maintain a comfortable environment on cooler days and nights than on moderate ones FOR 2 SPEED UNITINSTALLATIONS Your heat pump spends about 80 of its time operating in low speed heat ing This means that it will operate for longer periods of time than a single speed heat pump even on moderate days This longer operational time in low speed results in higher efficiency operation and lower operating noise than a sin gle speed heat pump could achieve SUPPLEMENTAL HEAT Your heat pump is your primary heating source Your system may also be equipped with a supplemental heating source such as electric gas or oil On cold days and nights your system will automatic
18. ys MAIN OFF Fig 4 Main Electrical Disconnect EMERGENCY HEAT MODE The emergency heat EHEAT setting on your Carrier electron ic thermostat can be used to turn off your heat pump and use only the supplemental heating source if equipped The Aux iliary Heat Indicator AUX HT will be displayed while your system is operating in EHEAT mode Emergency heat is not normally used There may be situations however when it is necessary such as when your heat pump requires servicing If the electricity to your heat pump has been off for more than 30 minutes switch your thermostat to EHEAT mode before restarting your heat pump Leave the system in EHEAT mode for an amount of time equal to the power outage It is not nec essary to exceed 12 hrs If you cannot determine how long the power has been off leave the system in EHEAT mode for 8 hrs PERFORMING ROUTINE MAINTENANCE With the proper maintenance and care your heat pump will operate economically and dependably Maintenance can be accomplished easily by referring to the following directions However before performing maintenance consider these important safety precautions A WARNING Disconnect all electrical power to the indoor air handler or furnace before removing access pan els to perform any maintenance Disconnect power to both the indoor and outdoor units NOTE There may be more than one electrical dis connect switch Electric shock can cause
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