Air cooled Chillers

Carrier Commercial Chillers Air Cooled chiller
30WGA
Condenserless Chiller with Fixed Speed Scroll Compressor

30WGA

The Carrier AquaSnap® 30WGA is a high-performance condenserless scroll chiller designed for ultimate installation flexibility. By separating the cooling process from heat rejection, the 30WGA allows the main mechanical unit to be protected indoors while connecting to a remote outdoor air-cooled condenser. This makes it the premier choice for urban refurbishments, sites with strict outdoor noise ordinances, or projects where indoor space is premium but water-cooled infrastructure is unavailable.

  • Cooling Capacity: 25 kW to 190 kW (7 to 54 Tons)

  • Configuration: Condenserless (Indoor unit for remote air-cooled heat rejection)

  • Compressor Technology: Multi-scroll design for superior part-load efficiency

  • Refrigerant: High-efficiency R-410A

  • Footprint: Ultra-compact (standard doorway accessible)

Technical Details

Patented Auto-Adaptive Logic

Features a sophisticated algorithm that optimizes condensing pressure at part-load to reduce compressor work, ensuring a perfect supply of liquid refrigerant to the evaporator.

Dual Time-Schedule Management

The controller supports two independent schedules for automated unit start/stop and "dual set-point" management, allowing for optimized energy use during night or weekend modes.

Intelligent Pump Control

Equipped with variable-flow pump logic that reduces system energy consumption by adjusting water flow based on real-time load, eliminating the need for constant-speed pumping.

Total Unit Protection & Monitoring

The system permanently analyzes suction and discharge pressures and temperatures, automatically adjusting operation to prevent faults and ensure the machine stays within its safe operating map.

Control / Integrations

SmartVu™ control

  • Integrated advanced communication features
    • With hydraulic module: water pressure display and water flow calculation
    • Easy and high-speed communication technology over Ethernet (IP) to a building management system
  • User-friendly and intuitive 4.3" color touch screen user interface
    • Access to multiple parameters
    • Concise and clear information available in local languages
    • Complete menu, customized for different customers
  • Remote management (standard)
  • Easily accessed from the internet
  • Remote control quick and easy
  • Maintenance function (standard)
  • Compulsory Maintenance Reminder - FGAS sealing check
  • Configurable Periodic Maintenance Reminder
  • Storage of user documents, electrical diagrams and spare parts

Advance control

  • Optimized energy management
    • Patented auto-adaptative algorithm optimizing the condensing pressure at part load to reduce compressor load and ensure perfect supply for the evaporator with liquid refrigerant
    • Set-point reset based on the outside air temperature or the return water temperature
    • Master/slave control of two heat pumps operating in parallel
    • Two independent time schedules to control
    • Unit start/stop
    • Operation at a second chiller-water set-point
  • Total unit protection
    • Patented auto-adaptative algorithm controls compressor operation and permanently adapts to the system characteristics
    • Controller permanently analyzes the compressor suction and discharge pressures and temperatures
  • Remote control
    • Start/Stop of the machine
    • Dual set-point management
    • Demand limit
    • Operation indication
    • Alarm indication
  • Remote management
    • Multiple remote control, monitoring and diagnostic possibilities
    • Optional communication gateways

Integrated DHW & Heating Control

With Option 153, the chiller manages domestic hot water production, space heating, and auxiliary system sequencing through a built-in three-way diverter valve logic.

Technical Documents

Document Name Description Document Type Language Action
Product Selection Data 61WG/30WG/30WGA-A PDF English Download
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