Bryant 764A Care and Maintenance, AIR Filter, II. Evaporator FAN and Motor

Page 14

CARE AND MAINTENANCE

NOTE: The following steps should be performed by a quali- ®ed service person.

WARNING: Before installing or servicing unit, turn off main power to system to avoid shock hazard or in- jury from rotating parts. There may be more than one disconnect switch. Turn off accessory heater power if ap- plicable. Electrical shock can cause personal injury or death.

To ensure continuing high performance, and to reduce the pos- sibility of premature equipment failure, periodic main- tenance must be performed on this equipment. Unit should be inspected at least once each year by a quali®ed service person.

NOTE TO EQUIPMENT OWNER: Consult your local dealer about the availability of a maintenance contract.

WARNING: The ability to properly perform mainte- nance on this equipment requires certain expertise, mechanical skills, tools, and equipment. If you do not possess these, do not attempt to perform any mainte- nance on this equipment other than those procedures recommended in the User's Manual. FAILURE TO HEED THIS WARNING COULD RESULT IN SERIOUS PER- SONAL INJURY AND POSSIBLE DAMAGE TO THIS EQUIPMENT.

The minimum maintenance requirements for this equipment are as follows:

1.Inspect air ®lter(s) each month. Clean or replace when necessary.

2.Inspect condensing coil, drain pan, and condensate drain each cooling season for cleanliness. Clean when necessary.

3.Inspect evaporator-fan motor and wheel for cleanliness each heating and cooling season. Clean when necessary. For ®rst heating season, inspect evaporator-fan motor bimonthly to determine proper cleaning frequency.

4.Check electrical connections for tightness and controls for proper operation each heating and cooling season. Service when necessary.

5.Check the drain channel in the top cover periodically for blockage (leaves, insects). Clean as needed.

WARNING: Failure to follow these warnings could re- sult in serious personal injury:

1.Turn off all electrical power to the unit before per- forming any maintenance or service on the unit.

2.Use extreme caution when removing panels and parts. As with any mechanical equipment, personal injury can result from sharp edges, etc.

3.Never place anything combustible either on, or in con- tact with, the unit.

4.Should overheating occur, shut off all of the electri- cal supply(s).

I. AIR FILTER

CAUTION: Never operate the unit without a suit- able air ®lter in the return-air duct system. Always re- place the ®lter with the same dimensional size and type as originally installed. See Tables 1 and 2 for recom- mended ®lter sizes.

Inspect air ®lter(s) at least once each month and replace (throwaway-type) or clean (permanent-type) at least twice dur- ing each cooling season or whenever the ®lter(s) becomes clogged with dust and lint.

II. EVAPORATOR FAN AND MOTOR

NOTE: Motors without oilers are permanently lubricated. Do not attempt to lubricate these motors.

For longer life, operating economy, and continued efficiency, clean accumulated dirt and grease from the evaporator-fan wheel and motor annually.

Lubricate the motor every 5 years if the motor is used inter- mittently (thermostat FAN switch in AUTO. position), or every 2 years if the motor is used continuously (thermostat FAN switch in ON position).

WARNING: Disconnect and tag all electrical power to the unit before cleaning the evaporator-fan and wheel. Failure to adhere to this warning could cause personal injury or death.

To clean the blower wheel:

1.Access the blower assembly as follows:

a.Remove top access panel.

b.Remove 3 screws that hold blower ori®ce ring to blower housing. Save screws.

c.Loosen set screw(s) which secure wheel to motor shaft.

2.Remove and clean blower wheel as follows:

a.Lift wheel from housing. When handling and/or clean- ing blower wheel, be sure not to disturb balance weights (clips) on blower wheel vanes.

b.Remove caked-on dirt from wheel and housing with a brush. Remove lint and/or dirt accumulations from wheel and housing with vacuum cleaner, using a soft brush attachment. Remove grease and oil with a mild solvent.

c.Reassemble blower into housing. Place upper ori®ce ring on blower to judge location of the blower wheel. Blower wheel should be approximately .2 in. below bottom of ori®ce ring when centered correctly. Be sure set screws are tightened on motor and are not on round part of shaft.

d.Set upper ori®ce ring in place with 3 screws removed in Step 1.

e.Replace top access panel.

Ð14Ð

Image 14
Contents Safety Considerations Important Ð Read Before InstallingContents InstallationBase Unit Dimensions Ð 564A/764A024-036 Ð2ÐBase Unit Dimensions Ð 564A/764A042,048 Ð3ÐBase Unit Dimensions Ð 564A/764A060 Ð4ÐClearance Ground-Level InstallationLocate the Unit II. RIG and Place UnitÐ6Ð Physical DataField-Duct Connections Shipping Location of Duct Flanges Size 060 Only Ð7ÐÐ8Ð Do not USE Aluminum WireElectrical Connections Control Box Wiring Unit Electrical Connection Entry HolesElectrical Data FLA MCA Mocp LRAAccessory Installation PRE-START-UPSTART-UP Heating Section START-UP and Adjustments II. Cooling Section START-UP and AdjustmentsIII. Indoor Airflow and Airflow Adjustments II. Evaporator FAN and Motor Care and MaintenanceAIR Filter Unit Top Removal Service CleaningRepairing Refrigerant Leaks Condenser Coil, Evaporator Coil, and Condensate Drain PanIndoor Airflow IV. Electrical Controls and WiringIX. Replacement Parts VI. Metering Device ServicingCooling Charging Chart Ð 564A/764A024 Cooling Charging Chart Ð 564A/764A048 Cooling Troubleshooting Chart Symptom Cause RemedyPage Page Packaged Service Training Page Preliminary Information START-UP ChecklistTemperatures III. START-UP Electrical

764A specifications

The Bryant 764A is a high-performance air conditioning and heating system that exemplifies efficiency and reliability for residential and commercial use. Designed to deliver optimal comfort in various climates, the 764A is known for its impressive energy efficiency ratings and advanced technologies.

One of the standout features of the Bryant 764A is its variable speed compressor. This innovative component allows the system to adjust its output according to the specific cooling or heating demands of the environment. By operating at different speeds, the compressor can maintain a consistent indoor temperature while using less energy compared to traditional single-stage systems. This not only enhances comfort but also contributes to significant energy savings over time.

The Bryant 764A is equipped with a smart thermostat that offers precise control over indoor climates. This thermostat can be programmed to adjust temperatures based on user preferences and schedules, further improving energy efficiency. Users can also control the system remotely via a smartphone app, ensuring comfort is just a tap away.

In terms of its construction, the Bryant 764A is built with durability in mind. The unit features a robust cabinet designed to withstand harsh weather conditions, which extends the lifespan of the system. Additionally, its sound-dampening technology minimizes operational noise, creating a more peaceful indoor environment.

The 764A incorporates advanced filtration systems to improve indoor air quality. With allergen filtration capabilities, it effectively reduces dust, pollen, and other airborne particles, making it an excellent choice for allergy sufferers. This focus on air quality aligns with Bryant's commitment to creating healthier living spaces.

Moreover, the Bryant 764A is designed with environmentally friendly refrigerants, aligning with modern standards for reducing greenhouse gas emissions. This commitment to sustainability is becoming increasingly important for consumers looking to reduce their environmental footprint.

Overall, the Bryant 764A stands out as a comprehensive solution for heating and cooling needs. With its variable speed technology, smart thermostat, durable construction, and focus on air quality, it offers both efficiency and comfort, making it a wise investment for any property owner looking to enhance their indoor environment.