3FGN350HY1/RCN125HY19x2

Installation and Operating Guide for the Daikin Cooling-Only Ducted Air Conditioner 3FGN350HY1/RCN125HY19x2

1. Preparation Before Installing 3FGN350HY1/RCN125HY19x2

Before installation, you need to prepare the following:

• Check the unit components: Make sure you have received all air conditioner components, including the indoor unit, outdoor unit, remote control, accessory kit and air ducts.
• Choose the installation location:
  • Indoor Unit: It should be installed in a well-ventilated space without large obstructions. This location must be at least 30cm from the ceiling to ensure even airflow distribution.
  • Outdoor Unit: It should be installed in a well-ventilated location, away from direct sunlight and obstructions. The minimum distance from the outdoor unit to any obstruction is 1m.
  • Air Ducts: Ensure the ducts are securely installed and do not have too many sharp bends, so that cooling performance is not affected.

2. Installing the Ducted Air Conditioner 3FGN350HY1/RCN125HY19x2

Step 1: Install the Indoor Unit

1. Mark the indoor unit mounting position on the wall, ensuring that the indoor unit is mounted at an appropriate height and can be easily connected to the air ducts.
2. Securely attach the mounting bracket to the marked position on the wall.
3. Hang the indoor unit on the mounting bracket and check that the equipment is stable.

Step 2: Install the Outdoor Unit

1. Select an outdoor location for the outdoor unit, ensuring adequate ventilation and no obstructions.
2. Place the outdoor unit on a mounting bracket or a solid base. Ensure that the outdoor unit is installed with a slight backward tilt to prevent condensate from accumulating inside it.
3. Connect the refrigerant piping from the indoor unit to the outdoor unit. Ensure that the piping is not bent too sharply or kinked.

Step 3: Connect the Air Ducts

1. Install the air ducts from the indoor unit to the air outlets in the room, ensuring that the ducts are not kinked and do not obstruct airflow.
2. Check the joints between the ducts and the air outlets to ensure there are no cold air leaks.

Step 4: Connect the Electrical Supply

1. Connect the power supply wiring to the air conditioner. Ensure that wiring with an appropriate cross-sectional area is used and is safe.
2. Check the electrical system before starting the unit to ensure there are no electrical faults.

3. Post-Installation Checks for 3FGN350HY1/RCN125HY19x2

After completing the installation, perform the following checks:

• Check the electrical system: Ensure that the electrical connections are safe, with no signs of short circuits or burning.
• Check the refrigerant system: Ensure there are no refrigerant leaks. If necessary, have a technician check it again.
• Check unit operation: Turn on the air conditioner and check the operation of the indoor and outdoor units, ensuring there are no unusual noises and that the unit cools effectively.

4. Operating Instructions for Air Conditioner 3FGN350HY1/RCN125HY19x2

1. Turn on the unit: Use the remote control to turn on the unit. Ensure that the indoor unit operates and that cool air is distributed evenly throughout the room.
2. Adjust the temperature and mode: You can adjust the temperature, fan speed and other modes (e.g. cooling, automatic, fan) as needed.
3. Use additional features (if available):
   • Energy-saving mode: The Daikin air conditioner may have an energy-saving feature that helps reduce electricity consumption during operation.
   • Dehumidification mode: If the space is damp, you can use dehumidification mode to reduce moisture in the air.

5. Periodic Maintenance and Operation for 3FGN350HY1/RCN125HY19x2

• Clean the air filter: Clean the air filter periodically to ensure optimal cooling performance and extend the service life of the air conditioner.
• Check the air ducts: Ensure that the air ducts are not blocked and that airflow remains unobstructed at all times.
• Check the refrigerant: If the air conditioner does not cool effectively, it may need additional refrigerant. Have a technician inspect and address the issue.

6. Important Notes for 3FGN350HY1/RCN125HY19x2

• Avoid installation in locations exposed to direct sunlight or high temperatures: This will reduce cooling efficiency and increase energy consumption.
• Ensure regular maintenance: Service and clean the air conditioner at least once every 6 months to ensure proper operation and extend its service life.

Proper installation and operation will help the Daikin 3FGN350HY1/RCN125HY19x2 air conditioner operate reliably and save energy over the long term.