RXQ14BYM

🔧 1. Preparation requirements before installation

1.1. Installation location

• A well-ventilated, unobstructed location to ensure good air circulation.

• Away from heat sources, exhaust gases or flammable materials.

• Do not install in locations with high humidity or direct exposure to rain or standing water.

• Required minimum clearances:

  • In front of the outdoor unit: ≥ 1.5m

  • On both sides: ≥ 0.5m

  • At the rear: ≥ 0.3m

  • Above: ≥ 1.0m (if multiple units are installed in stacked tiers)

✅ Note: The RXQ14BYM outdoor unit weighs 247kg, requiring a concrete floor or a load-bearing structure with sufficient load capacity and good vibration isolation.

🧱 2. Foundation and support frame structure

2.1. Concrete foundation or support bracket

• Recommended floor thickness: ≥ 150mm

• Use anti-vibration rubber pads at the 4 mounting feet

• If installed on an upper floor, calculate loads and vibrations to avoid affecting the structure

2.2. Securing the outdoor unit

• Use expansion bolts or chemical anchor bolts to secure the unit to the foundation.

• Do not allow the unit to tilt, become misaligned or sit directly on the floor without rubber pads.

🧰 3. Connecting copper pipes and refrigerant pipes

3.1. Refrigerant type used: R410A

• Special tools for R410A are required (flaring tools, pressure gauges, vacuum pump...)

3.2. Connecting copper pipes

• Comply with pipe diameters and maximum lengths as specified in the VRV system design.

• Do not allow pipes to kink, flatten or bend beyond the permitted bend radius.

• Evacuate thoroughly before charging refrigerant to remove moisture and prevent icing or compressor damage.

Permissible pipe lengths and height differences:
(Refer to the technical documentation from Daikin or the specific VRV system supplier – total length may be from 165m, with a 50m height difference depending on the system configuration)

⚡ 4. Electrical connections

4.1. Power supply

• Power supply: 3 pha 380-415V / 50Hz

• Power supply cables: select the cross-sectional area according to the power rating (refer to the standard table)

• Provide a dedicated circuit breaker for each outdoor unit, with surge protection if located in a lightning-prone area

4.2. Signal wiring

• Use shielded twin-core cable (2x1.25mm² or larger)

• Do not route signal cables together with power cables to avoid interference

💧 5. Condensate drainage system (if applicable)

• Some outdoor units may produce condensate during operation in high humidity. Install a drain pan and drain pipe if necessary.

• The drain pipe must have a slight slope to ensure gravity drainage.

🧪 6. Inspection and test run

6.1. Pre-operation checks

• Ensure all mounting bolts are securely tightened

• Check for refrigerant leaks using a soap solution or a refrigerant leak detector

• Check wiring connections, ensuring correct phase connections and no loose connections

• Ensure there are no obstructions around the outdoor unit

6.2. Test run and adjustment

• Switch on the power and check the outdoor unit fan's direction of rotation

• Check the refrigerant pressure and current draw

• Monitor the system for at least 30 minutes to ensure stable operation

📋 7. Technical and safety notes

• Only technicians with VRV expertise are permitted to install and operate the system

• Do not make unauthorized changes to the piping design, electrical design or installation structure

• Perform periodic maintenance every 3–6 months depending on the operating environment

If you need an actual installation diagram (images, CAD drawings or technical PDFs for the VRV system), would you like me to help create one or find a standard template from the manufacturer?