Indoor-Fan Motor, Outdoor-Fan Motor, and Combustion Fan Motor — Lubrication is not recom- mended. Bearings will not require lubrication for at least 5 years of normal operation. After 5 years, motor life can be extended by having the motors serviced at an authorized motor service shop.

Fan Shaft Bearings — The bearings should be greased with Shell Alvania no. 2 grease or equivalent. The bearings will need to be greased annually, dependent on fan usage. Do not grease more than once a year.

Evaporator and Condenser Coils — Cleaning of the coils should be done by qualified service personnel. Contact your dealer for the required annual maintenance.

Condensate Drain — The drain pan and condensate drain line should be checked and cleaned at the same time the cooling coils are checked by your dealer.

Compressor — All compressors are factory supplied with a normal charge of the correct type of refrigeration-grade oil in them and should not require additional oil.

Condenser Fan

WARNING

Do not poke sticks, screwdrivers, or any other object into revolving fan blades. Severe bodily injury may result.

The fan must be kept free of all obstructions to ensure prop- er cooling. Contact your dealer for any required service.

Electrical Controls and Wiring — Electrical con- trols are difficult to check without proper instrumentation. If there are any discrepancies in the operating cycle, contact your dealer and request service.

Refrigerant Circuit — The refrigerant circuit is difficult to check for leaks without the proper equipment. If inadequate cooling is suspected, contact your local dealer for service.

Combustion Area and Vent System — The com- bustion area and vent system should be visually inspected be- fore each heating season. The normal accumulation of dirt, soot, rust, and scale can result in loss of efficiency and im- proper performance if allowed to build up.

CAUTION

If your unit makes any unusual or especially loud noises during heating, shut down the heating section and call your dealer.

See Fig. 1 and 2 and proceed as follows to inspect the com- bustion area and power-venting system of your unit.

1.Turn off gas supply to your unit.

2.Turn off electrical power to your unit.

3.Remove gas section access panels.

4.Using a flashlight, carefully inspect the burner areas for dirt, soot, rust, or scale.

CAUTION

If dirt, soot, rust, or scale accumulations are found, call your dealer and do not operate your heating section.

5.When you have completed your inspection, follow the To Light Unit section in this manual to restore your unit to operation.

6.Observe unit heating operation. Watch the burner flame to see if it is bright blue. If you observe a suspected mal- function or if the flame is not bright blue, call your dealer.

WARNING

Components in heat section may be hot after unit has been started. When observing flame, be careful not to get close to or touch heating components. Serious personal injury may result.

7. Replace gas section access panels.

Unit Panels — After performing any maintenance or service on the unit, be sure all panels are securely fastened in place to prevent rain from entering unit cabinet and to prevent disruption of the correct unit airflow pattern.

REGULAR DEALER MAINTENANCE

In addition to the type of routine maintenance you might be willing to perform, your unit should be inspected regularly by a properly trained service technician. An inspection (preferably each year, but at least every other year) should include the following:

1.Inspection of all flue product passages — including the burners, heat exchanger, and flue collector box.

2.Inspection of all combustion and ventilation-air passages and openings.

3.Close inspection of all gas pipes leading to and inside your unit.

4.Inspection and if required, cleaning of the condenser and evaporator coils.

5.Inspection and if required, cleaning of the condensate drain pan.

6.Inspection and cleaning of blower wheel housing and motor.

7.Inspection of all supply and return-air ducts for leaks, ob- structions, and insulation integrity. Any problems found should be resolved at the time of inspection.

8.Inspection of the unit base for cracks, gaps, etc., which may cause a hazardous condition.

9.Inspection of the unit casing for signs of deterioration.

10.Inspection of all electrical wiring and components to ensure proper connection.

11.Inspection for leaks in the refrigerant circuit. Pressure- check to determine appropriate refrigerant charge.

12.Inspection of fan wheels and housings, belt tension, and fan motor shaft bearings.

13.Operational check of the unit to determine working conditions. Repair or adjustment should be made at the time of inspection.

Your servicing dealer may offer an economical service con- tract that covers seasonal inspections. Ask for further details.

Complete service instructions can be found in the unit Controls, Start-Up, Operation, Service and Troubleshooting literature.

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Carrier 62DA, 62DC, 62DB, 62DD specifications Condenser Fan, Regular Dealer Maintenance
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62DD, 62DC, 62DA, 62DB specifications

Carrier's 62DB, 62DA, 62DC, and 62DD series are among the most respected HVAC products in the industry, delivering exceptional performance and reliability for residential and commercial needs. Designed with advanced technologies, these units cater to a variety of requirements, ensuring efficient heating and cooling solutions.

The 62DB model is known for its robust design, boasting a quiet operation that keeps indoor environments serene. Its multi-position installation flexibility allows for easy adaptation in various space configurations. The 62DB is engineered with an efficient scroll compressor that enhances its performance and reduces energy consumption. Additionally, the unit features high-efficiency coil designs that maximize heat transfer, further improving its efficiency ratings.

The 62DA series takes efficiency to the next level with its variable-speed technology. This allows the system to adjust airflow and cooling capacity based on the demands of the space, offering a consistent and comfortable environment. With a SEER (Seasonal Energy Efficiency Ratio) rating that often exceeds 16, the 62DA qualifies for energy-saving rebates and incentives, making it an economical choice in the long run.

The 62DC model comes equipped with advanced diagnostics technology, including built-in sensors that monitor system performance. These sensors enable proactive maintenance alerts, helping homeowners avoid costly repairs. The 62DC also features a durable cabinet construction that protects the internal components from harsh weather conditions, ensuring longevity and reliability in all climates.

Finally, the 62DD is designed with an emphasis on easy installation and maintenance. Its compact design allows it to fit into tight spaces, while the top-access panels provide technicians with easy service access. The 62DD incorporates a high-efficiency variable-speed blower that ensures quiet operation and optimal humidity control.

In addition to individual model features, the entire series is designed for compatibility with smart technology solutions. They can integrate with home automation systems, allowing users to control their indoor climate remotely. This integration not only enhances user convenience but also contributes to energy savings.

Overall, the Carrier 62DB, 62DA, 62DC, and 62DD series represent a commitment to innovation, performance, and energy efficiency. With their advanced features and technologies, these units provide reliable solutions that meet the demands of modern indoor climate control while keeping energy consumption in check. Whether for residential homes or commercial spaces, Carrier’s offerings deliver the comfort and efficiency that customers expect.
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