Hessaire H Series Ductless Mini-Split AC User Manual

Product Overview

This manual provides comprehensive instructions for the Hessaire H Series Ductless Mini-Split Air Conditioner. It covers safety precautions, specifications, care and maintenance, troubleshooting, and warranty information for models using R32 and R454B refrigerants.

Models Included:

• R32 Refrigerant: H12TT1 (1 Ton, 18.0 SEER2), H12TT2 (1 Ton, 20.0 SEER2), H18TT2 (1.5 Ton, 21.0 SEER2), H24TT2 (2 Ton, 19.5 SEER2)
• R454B Refrigerant: H12FB1 (1 Ton, 22.0 SEER2), H18FB2 (1.5 Ton, 21.0 SEER2), H24FB2 (2 Ton, 22.5 SEER2)

1) Safety Precautions

1.1 Product Use Warnings/Cautions

WARNING: Ignoring these instructions may lead to serious injury or death.

• In case of abnormal situations (e.g., burning odor), immediately turn off the unit and shut off the circuit breaker. Contact your installer or electrician for guidance on avoiding electrical shock, fire, or other injuries.
• Do not insert fingers or other objects into air inlets or outlets, as this can cause injury from the rotating fan or damage internal components.
• Do not use flammable sprays (hairspray, lacquer, paint, etc.) near the unit, as they may cause fire or combustion.
• Do not operate the air conditioner in areas near combustible gases, which could lead to an explosion.
• Do not operate in high humidity spaces (e.g., bathroom, laundry room), as this may lead to electrical shock or internal component corrosion.
• Do not directly expose your body to prolonged periods of cool air.

CAUTION: Ignoring these instructions may lead to moderate injury to nearby persons or damage to the appliance or other property.

• If the air conditioner is used concurrently with burners or other heating devices, ensure thorough ventilation to avoid oxygen deficiency.
• If not using the unit for extended periods, turn off the air conditioner and breaker.
• Turn off the breaker during lightning or strong storms.
• Ensure condensate water drains freely from the unit.
• Do not operate with wet hands, as this may cause electrical shock.
• Use this unit only for its intended purpose: indoor environmental comfort.
• Do not place objects on or stand on the outdoor unit.
• Avoid operating the air conditioner for long periods with doors and/or windows open, especially in high humidity, as this can lead to condensate water accumulation.

1.2 Cleaning & Maintenance Warnings

WARNING: Ignoring these instructions may lead to serious injury or death.

• Turn off the device and breaker before cleaning. Failure to do so can cause electrical shock.
• Do not use excessive amounts of water to clean the unit.
• Do not use combustible cleaning agents. Harsh chemicals can result in fire or unit damage.

2) Specifications/Performance

3) Care & Maintenance

Cleaning Your Indoor Unit:

• Use only soft, dry cloths to wipe the unit clean. If the unit is extremely dirty, use a cloth soaked in warm water.
• Do not use chemicals or solvents to clean the unit.
• Do not use water hotter than 104° F (40° C), as it may cause discoloration or deforming of the panel.

Cleaning The Air Filter:

A dirty or clogged air filter can decrease the cooling efficiency of your unit. It is recommended to clean air filters every 2 weeks or 200 hours of use.

• Disconnect the unit from the power source (turn off the breaker) before opening the cover to access the filters. Lift the front panel from the lower corners to swing the cover up (See Fig. 3).
• Gently remove the air filters from the indoor unit.
• Clean the filters with warm soapy water. Use a mild detergent.
• Rinse with fresh water and dry completely.
• Replace the filters and close the cover.

Fig. 3: Accessing Removable Filters

Cleaning & Maintenance Of Outdoor Unit:

Any maintenance on the outdoor unit should be performed by a certified or qualified person. Inspect the outdoor unit for any build-up of leaves or other clutter and remove it from the surrounding area as needed. Note: Do not clean near the outdoor unit while it is running. Disconnect power prior to cleaning.

Maintenance - Storage & Inspection:

When not in use for long periods of time:

• Clean and dry filters completely.
• Disconnect from power source (turn off breaker).
• Remove the battery from the remote controller.

When starting up after long periods of non-use:

• Check for damaged wires.
• Clean and dry filters completely.
• Install remote controller batteries.
• Check for leaks.
• Ensure nothing is blocking any air intake or outlets.

Helpful Operating Tips:

• Relaxing Room Temperature At Night: Use sleep mode to gradually adjust the room temperature, allowing the unit to run less and save energy.
• Curtains & Shades: In summer, blocking direct sunlight with shades/curtains can significantly help with cooling costs. In winter, open curtains and shades to allow solar heat into living areas.
• Close Doors: Confine cooling and heating to habitable areas by closing doors to limit the space being conditioned.
• Clear Around Outdoor Unit: Keep the area around the outdoor unit free of leaves and debris to improve operating efficiency. Hose off the unit if necessary to clear debris from coil fins.
• Rearrange The Room: Remove or rearrange furniture that obstructs airflow to ensure you are conditioning the living space, not objects. Use the swing louvers to direct airflow correctly.
• Try 75 Degrees: 75°F (24°C) is optimal for performance. Even a 1-degree change in temperature setting can increase energy use.
• Lighting: Turn off unnecessary lights to reduce heat. Each light emits significant heat, which the air conditioner must overcome.
• When Away From Home: Set the unit to auto mode and ensure windows and shades are closed. The unit will bring the room back to the desired temperature shortly after your return.
• Use Of The Fan: Using the fan on a lower, quieter setting is more energy-efficient than running at full speed.

4) General Troubleshooting

If any of the following conditions occur, turn off the unit and breaker immediately:

• Power wires are damaged or visibly worn.
• A burning odor or smoke is present.
• The unit makes a loud or abnormal sound.
• The unit is tripping the circuit breaker.
• Water or other objects are entering or exiting the indoor unit.

WARNING: Do not attempt to fix these issues yourself. Contact qualified personnel for repair.

5) Troubleshooting: Error Code Table

5.1 Error Code Table: Indoor Unit

Finding error code: Press the remote control sleep button 10 times. Wait to hear "beep" between each press. If the indoor unit does not display an error code, repeat button pressing 10 times. If the unit does not show an error code after several tries, see LED display 1,2,3 on the outdoor unit to diagnose issues.

ERROR CODE KEY: Solid On = ★ | Flashing = ○ | Off = X

5.2 Error Code Table LED: Outdoor Control Board

The LED display is located on the outdoor control board. WARNING: Use caution when removing the top panel and reading LED lights, as the fan blade is within reach and will be running. This step should be done by qualified personnel. To find the LED 1,2,3 lights, remove the top panel of the outdoor unit (while the compressor is running). The top panel is held in place with 3 screws. Remove the back cover from the control board. LED display lights 1,2,3 will be visible.

LED 1,2,3 KEY: Solid On = ★ | Flashing = ○ | Off = X

6) Parts Illustration

The following diagrams illustrate the components of the indoor and outdoor units. Part numbers are provided for reference when ordering replacements.

Diagram of Indoor Unit Components

Diagram of Outdoor Unit Components

Note: Must have the unit's serial number when requesting replacement parts.

7) Online Support

For additional factory support, visit hessaire.com.

For advanced technical support, visit https://hessaire.com/pages/minisplit-error-code-form. This link provides access to error code diagnostics for certified installers and repair persons.

8) Warranty

HESSSAIRE PRODUCTS, INC. RESERVES THE RIGHT TO VOID ANY AND ALL WARRANTIES ON UNITS WITHOUT A WARRANTY REGISTRATION AND/OR WITHOUT PROOF OF PURCHASE OR OWNERSHIP.

To register your warranty, go to http://hessaire.com/warranty and complete the registration form. Register the product within 90 days of purchase.

LIMITED WARRANTY

Hessaire Split-Type Air Conditioners are warranted to the verified owner against defects in materials and workmanship under normal use and maintenance, as provided below:

COVERAGE FOR THE COMPRESSOR

7-year conditional coverage for the air conditioner compressor, beginning on the date of installation.

ONE (1) YEAR LIMITED WARRANTY

Per agreement between Hessaire and authorized dealers/contractors, a one (1) year limited warranty for repair or replacement is provided, beginning on the date of installation. The air conditioner compressor is excluded from this warranty.

If the purchase date cannot be verified, the warranty period begins three (3) months after the month of manufacture (indicated by the first four digits of the unit's serial number).

Any part of the unit replaced or repaired under these warranties is warranted only for the unexpired portion of the warranty term.

WARRANTY LIMITATIONS—Hessaire is not responsible for:

• Damage or repairs required as a result of faulty installation or application.
• Damage or repairs required as a result of floods, fires, wind, lightning, accidents, or other conditions beyond Hessaire's reasonable control.
• Damage or repairs resulting from installation in an environment containing corrosive chemical agents.
• Damage or repairs required as a result of using components or accessories not supplied or designated by Hessaire.
• Normal maintenance, as described in the installation and operating manual (e.g., cleaning coils, cleaning/replacing filters), or damage caused by failure to perform such maintenance.
• Parts or accessories not supplied or designated for use by Hessaire.
• Damage or repairs required as a result of any improper use, maintenance, operation, or servicing.
• Damage or failure to start due to interrupted and/or improper electrical service.
• Changes in the appearance of the unit that do not affect its performance.
• Replacement of fuses and replacement or resetting of circuit breakers or power cords.
• Damage caused by transportation or handling.
• Additional handling charges to make a unit reasonably accessible for normal service.
• Labor or other costs incurred for diagnosing, repairing, removing, installing, shipping, servicing, or handling of defective parts, replacement parts, or new units.