Split System Air Conditioner Installation Narrabeen NSW

Case Study: Daikin Alira X 3.5 kW Reverse Cycle Installation

Project Background

The homeowner in Narrabeen required an upgrade to the existing air conditioning system in their main bedroom. The original unit was over a decade old, showing signs of reduced performance, increased noise, and frequent cycling. It no longer maintained consistent comfort during seasonal temperature extremes, particularly during the hot, humid summers and cooler winter nights typical of the Northern Beaches region.

After an initial consultation, the decision was made to decommission the existing system and replace it with a Daikin Alira X 3.5 kW reverse cycle split system. The Daikin Alira X series was selected for its efficient performance, reliable reverse cycle heating and cooling, modern controls, and strong brand reputation for longevity.

Platinum AC was engaged to manage the full process: removal of the old unit, supply of the new system, structural and electrical work, commissioning, and homeowner education.

Pre-Installation Assessment

Before quoting, Platinum AC conducted a comprehensive site assessment:

• Room analysis: The size, layout, insulation, and solar exposure of the main bedroom were measured to confirm the correct system capacity. A 3.5 kW unit was appropriate given the room dimensions and expected load.
• Existing system review: The older air conditioner was inspected to determine its mounting condition, electrical connections, and refrigerant line configuration, essential to planning the decommissioning safely.
• Client priorities: The homeowner wanted improved energy efficiency, quieter operation, and a modern remote control with flexible scheduling.

Based on this assessment, Platinum AC provided a detailed proposal outlining:

• Scope of work (decommission + new installation)
• Equipment specifications
• Materials and labour
• Compliance with electrical and building standards
• Warranty terms and maintenance advice

The homeowner approved the quotation, and installation was scheduled.

Decommissioning the Existing Split System Air Conditioner

On installation day, the process began with careful decommissioning of the existing system:

1. Power Isolation: The electrical supply to the old unit was safely disconnected and isolated to prevent any hazard during removal.
2. Refrigerant Recovery: Refrigerant was recovered using industry-standard recovery equipment in compliance with environmental regulations, ensuring no harmful release to the atmosphere.
3. Disconnection: Refrigerant lines, drain lines, and electrical conduits were safely disconnected between the indoor and outdoor units.
4. Removal: The indoor and outdoor units were removed from their mounts. Any fixings, brackets, or supports that could no longer be reused were taken down.
5. Site Clean-up: Debris and old materials were cleared, and surfaces were secured in preparation for installation of the new system.

The decommissioning was completed efficiently and without damage to the surrounding interior or exterior finishes, a priority given the homeowner’s concern for minimal disruption.

Supply and Installation of Daikin Alira X 3.5 kW

With the site prepared, the team moved on to installing the new Daikin Alira X 3.5 kW reverse cycle split system:

Indoor Unit Placement

• A precise position on an internal wall was selected to optimise airflow distribution throughout the bedroom without impeding furniture placement.
• The mounting bracket was fixed to structural supports to ensure stability and vibration isolation.
• A small, neat pass-through hole was drilled for refrigerant lines, electrical cabling, and drainage.

Outdoor Unit Placement

• The outdoor condenser was mounted on vibration-isolating brackets to reduce noise and prevent transmission to neighbouring properties, especially important in a suburban environment like Narrabeen.
• Placement was selected to maximise airflow and service access while complying with council and strata guidelines.

Refrigerant and Electrical Connections

• Insulated refrigerant lines were threaded through the wall penetration and connected to both indoor and outdoor units.
• A dedicated electrical circuit was installed, with a local isolator and dedicated circuit breaker, meeting AS/NZS electrical standards.
• A condensate drain was installed to ensure water from cooling cycles was properly routed away from the building fabric.

System Commissioning and Testing

The new Daikin system was thoroughly commissioned:

• A vacuum was pulled on the refrigerant circuit to ensure no moisture or air remained.
• Refrigerant charge and pressures were verified.
• The unit was switched on and tested for cooling and heating performance.
• Airflow, temperature differentials, and control responsiveness were checked.
• Noise levels were evaluated to confirm the quiet operation expected by the homeowner.

Client Handover

Once testing was complete, Platinum AC provided the homeowner with:

• A demonstration of the remote control functions
• Guidance on optimal temperature settings for comfort and efficiency
• Maintenance tips to prolong system life
• Warranty documentation

Results & Client Satisfaction

The project delivered on all objectives:

✔ Improved Comfort: Even airflow distribution and precise temperature control in both heating and cooling modes
✔ Quieter Operation: Daikin’s engineered design reduced noise compared to the old system
✔ Energy Efficiency: Advanced inverter technology reduced power consumption and running costs
✔ Professional Service: The homeowner noted Platinum AC’s punctuality, cleanliness, and clear explanations

“Platinum AC made the whole process seamless, from removing the old unit to showing us how to use the new system. We’re thrilled with the comfort and performance.” Homeowner, Narrabeen

Conclusion

This installation in Narrabeen demonstrates Platinum AC’s commitment to quality workmanship, compliance, and customer-centric service. By expertly managing the decommissioning and installation of a modern Daikin Alira X reverse cycle system, the team delivered enhanced comfort and efficiency, backed by education and support for the homeowner.

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