Bryant 698A User's Information Manual

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USER’S INFORMATION MANUAL
MODEL 698A TWO-SPEED PLUS HEAT PUMP
NOTE TO INSTALLER: This manual must be left with the equipment user.
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WELCOME TO EFFICIENT YEAR­ROUND COMFOR T
Congratulations on your excellent choice and sound inv estment in year-round home comfort!
Your new heat pump represents the culmination of many years of experience from 1 of the most reputable manufactur­ers of comfort systems.
Y our ne w unit is among the most reliable and energy-efficient heat pump products available today. To assure its dependabil­ity , spend just a few 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 peak efficiency.
With minimal care, your ne w heat pump will provide you and your family with year-round home comfort—both no w and for years to come.
SAFETY CONSIDERATIONS
Recognize safety information. This is the safety-alert symbol . 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 D ANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol. DANGER identifies the most serious hazards which severe personal injury or death. WARNING signifies hazards which
could result in personal injury or
death. CAUTION is used to identify unsafe practices which 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.
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will result in
would result in
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 unit before operating your new heat pump.
YOUR COMFORT SYSTEM
Identifying Y our System
Take the time to get to know the type of system you have. This will be useful 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, as shown in Fig. 1.
Each unit has a rating plate affixed to it. A rating plate provides necessary infor­mation for specific identification of a unit. Y ou 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
T o better protect your investment and to eliminate unnecessary service calls, famil­iarize yourself with the following facts:
Keep Filter Clean
•
Your heat pump system should ne v er be operated without a clean air filter properly installed. Plan to inspect the filter once per month. A clogged air fi lter will increase
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operating costs and shorten the life of the unit.
Do Not Block Registers
•
Supply-air and return-air registers should not be blocked. Drapes, furniture, and toys are some of the items commonly found obstructing registers. Restricted air ­flow lessens the unit’s efficiency and shortens its life span.
Do Not Cover or Block
•
Outdoor Unit
The outdoor unit must have unrestricted airflow. Do not cover the unit, lean an y­thing against it, or stand on it. Do not allow grass clippings, leav es, 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.
Get T o Know Your Thermostat
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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 damage the unit.
During the heating season, never increase the indoor thermostat setting more than 1- or 2-degree increments. If larger adjustments are made, the supplementary heating source will be turned on automat­ically . Needless use of the supplementary heat reduces potential energy savings.
Continuous Fan
•
Y ou may fi nd 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 pock ets may be too cool or warm for your liking. Contin­uous fan operation minimizes any temper ­ature differences.
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CURRENT ROOM TEMPERATURE,
DESIRED ROOM TEMPERATURE,
RESET FILTER BUTTON
RESTARTS THE TIMER
THAT CALCULATES
THE NEXT AIR FILTER
CHANGE OR CLEANING
LCD READOUT DISPLAYS
UNIT MODE SETTING,
AND FAN MODE SETTING
Thermostat
RESET/FILTER
FAN
MODE
MODE BUTTON SELECTS BETWEEN OFF, HEAT, COOL, AUTO, AND EMERGENCY HEAT OPERATION
FAN BUTTON CHOOSES BETWEEN ON OR AUTO FAN OPERATION
UP AND DOWN BUTTONS INCREASE OR DECREASE THE DESIRED TEMPERATURE SETTINGS
Fig. 2—Bryant Non-Programmable Two-Speed Thermostat
Air Cleaners and Humidifiers
•
Systems equipped with electronic or mechanical air cleaners and/or humidifi­ers offer the added benefits of ha ving the air continuously cleaned year-round, and humidified during the winter season.
Ventilation
•
A system equipped with a heat or energy recovery v entilator offers the advantage of exhausting stale air from the home and allowing fresh air in from the outdoors while minimizing heat loss.
MODE BUTTON SELECTS
BETWEEN OFF, HEAT, COOL,
AUTO, AND EMERGENCY
HEAT OPERATION
PROGRAM BUTTONS FOR PROGRAMMING
HEATING/COOLING
CYCLES
Zoning
•
Y our system may also be equipped with a zoning system which allows indi vidual control over the temperatures of separate areas of your home.
Check Condensate Drain
•
Your heat pump will remov e humidity from your home during the cooling sea­son. After a fe w 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. Do not expect to see much drainage if you live in a v ery dry environment.
LCD READOUT DISPLAYS CURRENT ROOM TEMPERATURE, DESIRED ROOM TEMPERATURE OR OUTDOOR TEMPERATURE, UNIT MODE SETTING, FAN MODE SETTING, AND TIME OF DAY
Programmable Thermostat
MODE
PROGRAM
COPY PREVIOUS DAY
CHANGE DAY
SET TIME/TEMP
FAN
END
HOLDRESET FILTER
Heated Air Temperatur e
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During the heating cycle, air from your registers may seem cooler than you might first expect because the air is being delivered at a higher v elocity and a more constant flow than air supplied by a con­ventional furnace. Also, your heat pump supplies air at 90 to 105°F instead of in sudden bursts of hot air as with a conven­tional furnace. The air may feel cool because it is slightly less than your body temperature. Howe ve r, it is sufficiently warm to keep you comfortable.
UP AND DOWN BUTTONS INCREASE OR DECREASE THE DESIRED TEMPERATURE SETTINGS
RESET FILTER BUTTON
RESTARTS THE TIMER
THAT CALCULATES
THE NEXT AIR FILTER
CHANGE OR CLEANING
Fig. 3—Bryant Programmable Two-Speed Thermostat
SET TIME
BUTTON
FAN BUTTON CHOOSES BETWEEN ON OR AUTO FAN OPERATION
HOLD BUTTON MAINTAINS THE CURRENT TEMPERATURE AND OVERRIDES PROGRAMMED TEMPERATURE CHANGES UNTIL RESET
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Don’t W orry About Ice
•
On Y our Unit
Ice or frost will tend to form on the out­door coil during winter heating operation. Your heat pump is designed to automati­cally 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!
When Not To Use Your Unit
•
Do not operate your unit in cooling mode when outdoor temperatures are below 55°F.
Do not operate your unit in heating mode when outdoor temperatures are above 66°F.
OPERA TING Y OUR HEAT PUMP
The operation of your heat pump system is controlled by the indoor thermostat. You simply adjust the thermostat to maintain the indoor temperature at the level you select. Most thermostats for heat pump systems have three controls: a temperature control selector, a FAN control, and a SYSTEM of MODE control. Thermostats may vary from those shown in Fig. 2 and 3. These thermostats have an ENERGY SAVINGS indicator which lights up when your 2-speed unit is operating at maximum efficiency and a TROUBLE indicator which lights up when the unit requires professional service.
The temperature control selector is a dial, lever, or set of buttons that allow you to establish the degree of tempera­ture that you wish to maintain for your personal comfort. Some thermostats possess two temperature control selec­tors: one for setting the temperature desired during the cooling cycle, and one to set the heating operation temper­ature.
The F AN control offers two options for controlling the indoor blower: A UT O and ON. When set to A UT O, the blower will run only during the time the heat pump is operating. When set to ON, the blo wer will run continuously .
Typically , the SYSTEM or MODE control on your thermostat offers the following selections: COOL, OFF, AUTO, HEAT, and EMERGENCY HEAT. The heat pump will not operate when the SYSTEM or MODE control is set to OFF . W ith the SYSTEM or MODE control set to COOL, your heat pump will operate in its cooling mode when the indoor temperature rises above the level that 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 A UT O selection found on some ther­mostats provides automatic changeover between cooling and heating cycles. With the SYSTEM or MODE control set to AUTO, the cooling mode is activated when the indoor temperature rises above the thermostat cooling temperature setting, or the heating mode will be activated when the indoor temperature drops below the thermostat setting for the heating cycle.
Your thermostat may be PROGRAM­MABLE or NON-PROGRAMMABLE. A NON-PROGRAMMABLE thermo­stat (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 tempera­ture 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 thermostat, please refer to thermostat Installation Instructions.
Depending on your typical winter heat­ing needs, your home comfort system may include a supplementary heating source. The EMERGENCY HEAT (EHEA T) setting provides for con venient selection between the two heating appli­ances. Y our heat pump will operate when the SYSTEM or MODE control is set to HEAT. With the SYSTEM or MODE control set to EMERGENCY HEAT, the heat pump will turn off and the supple­mentary heat source will be activated.
NOTE:
has several special features b uilt in to pro­tect the unit.
• 5-MINUTE TIME DELAY—Unit will delay operation upon initial start-up or short-cycling of the indoor thermostat.
• 1-MINUTE TIME DELA Y—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
Your 2-speed heat pump system
fan will continue to run.
• 2-MINUTE LOW-SPEED MINIMUM —If the unit has not operated within the past 30 minutes, upon the next cooling demand, it will operate for a minimum of 2 minutes on low speed.
COOLING CYCLE
With the SYSTEM or MODE control of your indoor thermostat set to COOL, your heat pump will run in cooling mode until the indoor temperature is lowered to the level you have selected.
Your 2-speed heat pump spends about 80% of its time operating in low-speed cooling. This means that it will operate for longer periods of time than a single­speed heat pump even on moderate days. This longer operational time in low speed results in higher efficiency operation, lower operating noise, and better humid­ity control than a single-speed heat pump could achieve.
The following conditions typically add extra heat and/or humidity to your home and make your cooling unit work longer to keep your home comfortable:
• Entrance doors are frequently opened and closed
• Laundry appliances are being operated
• A shower is running
• More than the usual number of people are present in the home
• More than the normal number of elec­tric lights are in use
• Drapes are open on the sunny side of the home
HEATING CYCLE
With the SYSTEM or MODE control of your indoor thermostat set to HEAT, your heat pump will operate in heating mode until room temperature is raised to the level you have selected. It may be assisted by a supplemental heat source if equipped. 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.
Your 2-speed heat pump spends about 80% of its time operating in low-speed heating. This means that it will operate for longer periods of time than a single­speed heat pump even on moderate days. This longer operational time in low speed results in higher efficiency operation and lower operating noise than a single-speed heat pump could achieve.
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MAIN
ON
OFF
Fig. 4—Main Electrical
Disconnect
SUPPLEMENTAL HEAT
Y our 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 automatically turn on the supplemental heat in order to maintain the level of comfort you have selected.
Your Bryant electronic thermostat will display the words ENERGY SAV­INGS when the heat pump is providing all the heat that is necessary . When addi­tional heat is required, your thermostat will turn on the supplemental heat (if equipped) and will display the AUX HT message.
DEFROST CYCLE
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 . To main­tain energy-efficient operation, your heat pump has an automatic defrost cycle.
The defrost cycle starts at a preset time interval of 90 minutes, although it may be reset to either 30 or 50 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 maximum of 10 minutes in the defrost mode, the unit will auto­matically switch back to normal heating operation.
Fig. 5—Removing Filter from
Do not be alarmed if steam or fog appears at the outdoor unit during the defrost cycle. 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 af fect the proper function of the unit and will clear within a few days.
EMERGENCY HEAT
The emergency heat (EHEAT) setting on your Bryant electronic thermostat can be used to turn off your heat pump and use only the supplemental heating source (if equipped). The Auxiliary 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, where it is necessary. Your Bryant programmable electronic thermostat has a service alarm indicator. In the heating season, if the thermostat ever displays the TROUBLE message, switch your thermostat to EHEAT mode and call your dealer. This allows your supplemental heating source to keep your home warm until your heat pump can be serviced. Also, 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
Fan Coil Unit
equal to the power outage. It is not necessary to exceed 12 hrs. If you cannot determine how long the po wer has been off, leave the system in EHEAT mode for 8 hrs.
PERFORMING ROUTINE MAINTENANCE
With the proper maintenance and care, your heat pump unit 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.
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WARNING
Disconnect all electrical power to the indoor air handler or furnace before removing access panels to perform any maintenance. Dis­connect power to both the indoor and outdoor units. NOTE: There may be more than 1 electrical dis­connect switch. Electrical shock can cause personal injury or death.
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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.
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CHECK THE AIR FIL TER
A dirty air filter will cause excessi ve strain on the compressor and blower motor , caus­ing the components to overheat and auto­matically shut down. In the extreme, the components will fail and need to be replaced. To av oid inef ficient operation or failure of your unit, CHECK THE FILTER(S) EVER Y 3 T O 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 is drying, you should have an e xtra filter on hand, allowing you to rotate between the two filters 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 Owner’s Manual for filter location and procedures for replacement or cleaning.
If your system includes an indoor fan coil unit, the filter is located in the unit where it connects with the return-air duct or plenum. (See Fig. 5.) Remove the filter access plate, then pull out the rack and filter . The clean filter must be reinstalled with the cross­hatched (when used) side facing the blower . With the clean filter in place, secure the spring tensioner, slide the tray into the unit, then secure the locks.
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 , which could require removing of the coil. DO NOT attempt this yourself.
OUTDOOR COIL
If grass clippings, leaves, shrubbery, and debris are kept away from the outdoor unit, minimal care should keep the system functioning properly . For proper drainage, debris must be removed periodically from the base pan. Howev er, if the outdoor coil becomes dirty , use a vacuum cleaner with soft brush
attachment to clean the exterior surface. V acuum coil surface using an up and down motion. Be careful not to bend or damage coil 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 unit is made out of galvanized metal and is protected by top-grade paint, you should take the precaution of additional maintenance, by periodically washing the unit. By washing all exposed sur­faces and coil you will be adding addi­tional life to your unit. Consult your installing contractor for proper inter­vals/procedures for your geographic area or service contact.
UNIT SUPPORT
Y our split-system outdoor unit should be maintained at a level position. If its sup­port shifts or settles so that the unit is no longer level, you should correct the con­dition. Relevel it promptly to assure that 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 stand.
BEFORE YOU REQUEST A SER VICE CALL
CHECK FOR THESE EASILY SOLVED PROBLEMS:
• Check the indoor and outdoor discon­nect switches. Verify that circuit breakers are on or that fuses have not blown.
• Check for sufficient airflo w. 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.
• Check the settings on your indoor ther­mostat. If you desire cooling, see that the temperature control selector is set below room temperature and the SYSTEM or MODE control is set to COOL or A UT O. If you require heat, be sure the tempera­ture control selector is set above room temperature and the SYSTEM or MODE control is set to HEAT or AUTO. The
F AN control should be set to ON for con­tinuous blower operation or AUTO if you wish blower to function only while the unit is operating.
• Check note concerning special features and time delays in “Operating Your Heat Pump” section.
If your comfort system still fails to oper­ate, 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 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 maintenance that you perform, your home comfort system should be inspected regularly by a properly trained service technician. The inspection (preferably each year, but at least every other year) should include the following:
• Routine inspection of air filter(s). Replacement or cleaning as required.
• Inspection and cleaning of the blower wheel, housing, and motor as required.
• 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.
• A check of all electrical wiring and con­nections.
• A check for secure physical connec­tions of individual components within units.
• Operational check of the heat pump system to determine actual working condition. Necessary repair and/or adjustment should be performed at this time.
• Your servicing dealer may of fer 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 if you ever require information or service.
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INSTALLATION DATA
Date Installed Dealer Name Address City State Zip Telephone
SPLIT-SYSTEM
OUTDOOR UNIT: Product No. Model No. Serial No.
INDOOR UNIT OR COIL:
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. Model No. Serial No.
Product No. Product No. Product No. Product No. Product No.
© 1998 Bryant Heating & Cooling Systems, 7310 W. Morris St. Indpls., IN 46231 Printed in U.S.A. Catalog No. 5369-803 11-98
Cancels: OM02-17 OM02-18
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