VRF & Packaged Cooling.
Variable Refrigerant Flow (VRF) technology allows for independent climate control in different zones of a building. The Aircons Ltd. implements high-ambient Hitachi and York systems that balance load dynamically, providing significant operational savings and comfort flexibility for commercial and residential sectors alike.
Heat Recovery & Heat Pump VRF Systems
The gold standard for buildings requiring highly adaptable, individually metered micro-climate zones.
3-Pipe Architecture
The outdoor unit pumps refrigerant through three distinct copper lines: High-Pressure Gas, Low-Pressure Gas, and Liquid.
The CH-Box (Change-Over Box)
Refrigerant passes through the CH-Box, acting as a dynamic 'traffic controller' for zonal cooling/heating.
Heat Extraction & Transfer
An indoor unit in a hot server room absorbs heat, turning liquid refrigerant into hot gas.
The Recycling Loop
Instead of wasting hot gas outside, the CH-Box routes it directly to a shaded room requiring heating, slashing consumption by 30%.
SmoothDrive Optimization
Hitachi's proprietary technology calculates exact refrigerant volume to prevent mechanical short-cycling.
Specified For
Multi-tenant commercial offices, luxury hotels, and premium residential towers.
Primary Usage
Allows one tenant to heat their office while another cools theirs simultaneously with shared energy recovery.
Packaged Rooftop Units (RTUs)
Maximizing indoor leasable space by keeping all heavy mechanicals on the roof.
All-in-One Housing
Compressor, condenser, evaporator, and blowers are contained within a single weather-resistant galvanized steel cabinet.
Direct Expansion (DX)
Return air is drawn directly up, passed across internal DX coils, and instantly chilled without chilled water loops.
Duct Injection
High-static blowers force newly conditioned air straight down through the roof into the building's central ductwork.
Specified For
Big-box retail stores, hypermarkets, RMG warehouses, and expansive shopping malls.
Primary Usage
Used to completely remove heavy, noisy machinery from occupied floors, simplifying maintenance and maximizing floor space.