Megan Parker
6 months ago
"Had a wonderful experience! Gary and his team were professional, friendly, and efficient. Had an aircon installed and it looks great. I highly recommend their services!"
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Our Services
VRF/VRV Air Conditioning Systems
"Multi-zone climate control for complex buildings."
Supply, installation, and maintenance of variable refrigerant flow (VRF/VRV) systems for commercial buildings, apartment complexes, and large residential properties across the Central Coast and Lake Macquarie.
Overview
When a building has multiple zones, multiple tenants, or multiple floors — each with different heating and cooling needs — a conventional split system or ducted system simply can't deliver. VRF (Variable Refrigerant Flow) and VRV (Variable Refrigerant Volume) technology was designed specifically for this challenge.
A single outdoor unit serves multiple indoor units across an entire building, with each zone independently controlled. The system only delivers exactly the refrigerant each zone needs at any given moment — which is why VRF systems are typically 30–40% more energy-efficient than conventional commercial HVAC.
Gary Lui is an authorised Hitachi VRF installer and has completed VRF projects across the Central Coast for offices, retail complexes, medical centres, and large residential properties.
How It Works
Our Process
1
Building Assessment
Gary assesses your building's zone layout, occupancy patterns, and existing infrastructure to design the optimal VRF configuration.
2
System Design & Quote
A detailed system design is produced with equipment specifications, refrigerant pipe routing, and a fixed-price installation quote.
3
Staged Installation
VRF installations are planned to minimise disruption. Work is typically staged around your building's occupancy schedule.
4
Commissioning & Training
Full system commissioning, BMS integration if required, and staff training on the centralised control system.
What's Included Multi-zone independent control High energy efficiency (up to 40% savings) Scalable for any building size Heat recovery systems available Authorised Hitachi VRF installer BMS integration capable Full commissioning and handover Ongoing maintenance contracts
Service Features
Service Area
We provide vrf/vrv systems across the Central Coast and Lake Macquarie, including:
FAQ
Frequently Asked Questions
VRF (Variable Refrigerant Flow) or VRV (Variable Refrigerant Volume) systems use a single outdoor unit to serve multiple indoor units across a building, with each zone independently controlled. They are highly efficient and ideal for commercial or multi-room applications.
Yes. Large homes with multiple zones can benefit significantly from VRF technology, offering individual room control and superior energy efficiency compared to traditional ducted systems.
VRF installations vary in complexity. A small commercial system may take 2–3 days, while larger multi-floor installations can take a week or more. We provide a detailed project timeline with every quote.
VRF systems are typically 30–40% more energy-efficient than conventional commercial HVAC systems of equivalent capacity, due to their variable-speed compressor technology and precise refrigerant management.
Yes. Heat recovery VRF systems can simultaneously heat some zones while cooling others — capturing waste heat from cooling and redirecting it where heating is needed. This is particularly efficient for buildings with mixed-use zones.
Yes. VRF systems require specialist maintenance. We offer scheduled maintenance contracts for all VRF installations, including quarterly inspections and annual full-system service.
Get a Quote
Free, fixed-price quote. Gary responds within a few hours.
Lic: 469578C
RTA: AU068433
Fixed-Price Guarantee
Same-Day Response
What Our Clients Say
Trusted for VRF/VRV Systems Across the Central Coast
Trusted by families and businesses across the Central Coast and Lake Macquarie.
Brett Ashman-Steel
Local Guide · 3 months ago
"Gary came highly recommended by another business. He provided a quick and affordable quote and within days the problem was rectified. Very friendly and professional service. Would certainly recommend Lilac HVAC."
Google review
Perfectionist Detailing
3 months ago
"From start to finish, Gary was a pleasure to deal with when we needed an additional outlet installed to our ducted aircon system. He is a highly knowledgeable professional who takes pride in his work and the service he delivers to customers."
Google review
Michael
3 months ago
"We had four air conditioners installed and couldn't be more satisfied. From the initial quotation to the final installation, communication was always prompt and professional. The installer arrived on time, worked diligently, and ensured everything was installed to a high standard. Excellent workmanship and very reliable service."
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Rod Fernandez
3 months ago
"Gary came out to my place on pretty short notice and did a great job on maintenance on our ducted system. He's a friendly polite guy and his offsider was great as well — very reasonable price and tidy work. I'll definitely recommend Lilac HVAC and re-engage them for future work."
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Robin Koraca
7 months ago
"The installer was on time and did a wonderful job. The price was excellent and we were so happy with the job we are having another unit installed to replace an old unit. Highly recommend this company."
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Michelle Swanepoel
8 months ago
"Very friendly service — the work done was neat and quick and he took the time to answer all questions we had. Communication was excellent, keeping us in the loop of any delays or expected timeframes. Highly recommend Gary!"
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Jordan Richardson
9 months ago
"Very impressed with Gary from Lilac. He arrived on time and was very professional. The job didn't take long at all and our new AC unit has taken the edge off this winter. Highly recommend."
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Get a Fixed-Price Quote for VRF/VRV Systems
Free assessment, fixed-price quote, no obligation. Gary personally handles every job across the Central Coast and Lake Macquarie.