Absorption Chillers

Carrier Commercial Chillers Absorption Chiller
16LJ
Hot Water Fired Absorption Chillers

16LJ

The Carrier 16LJ and 16LJ-F series represents a breakthrough in sustainable thermal management, specifically engineered for large-scale industrial and commercial cooling. These single-effect absorption chillers turn low-grade hot water—often a wasted byproduct—into a reliable source of chilled water. By eliminating the need for high-voltage electricity and synthetic refrigerants, the 16LJ series offers a quiet, vibration-free, and carbon-conscious alternative to traditional mechanical cooling systems.

  • Cooling Capacity: 176 kW to 5,275 kW (50 to 1,500 Tons)

  • Primary Heat Source: Low-temperature Hot Water (70°C to 95°C)

  • Environmental Impact: Zero GWP/ODP (Natural Water Refrigerant)

  • Operational Footprint: Compact modular design for space optimization

  • Operating Sound: Silent, compressor-free thermal cycle

Single-Effect Hot Water-Fired Absorption Chiller

The Carrier 16LJ (and the high-efficiency 16LJ-F variant) is a premier solution for facilities integrated with District Heating, Cogeneration (CHP), or industrial process heat. Operating on the principle of absorption, it utilizes a vacuum-sealed lithium bromide and water cycle to generate cooling without the wear and tear of high-speed moving parts.

  • High-Efficiency Heat Recovery: Optimized to extract maximum cooling potential from low-grade waste heat, significantly lowering the Total Cost of Ownership (TCO).

  • Simplified Mechanical Design: Featuring hermetic, leak-proof solution pumps and no large mechanical compressors, resulting in industry-leading reliability and minimal vibration.
  • Advanced Anti-Crystallization Logic: Integrated microprocessor controls monitor solution concentration levels in real-time, automatically activating dilution cycles to ensure stable operation.

16LJ

Precision Temperature Stability

The digital PID control system maintains chilled water output within ±0.5 K, ensuring consistent process cooling or comfort levels even under variable heat source temperatures.

Motorless Automatic Purge System

A high-efficiency, maintenance-free purge system maintains the internal vacuum levels required for peak performance, ensuring the chiller operates at design efficiency year-round.

Corrosion-Resistant Interior

Internal surfaces are treated with specialized inhibitors that create a molecular-level protective barrier, preventing oxidation and maintaining heat exchanger integrity

Optimized Solution Distribution

Innovative spray header designs ensure uniform wetting of the heat exchanger tubes, maximizing heat transfer efficiency and reducing the required solution volume.

Integrated Pump Sequencing

The chiller’s controller manages the start/stop commands for the chilled water, cooling water, and hot water pumps. During shutdown, it automatically sequences these pumps to complete a dilution cycle, preventing the lithium bromide from crystallizing as the unit cools.

Intuitive Touch Interface

Equipped with an 8.4-inch high-resolution touch screen, providing real-time visualization of the absorption cycle, temperature gradients, and operational records in multiple languages.

Safety Interlock Suite

Features comprehensive safety protections including chilled water flow verification, low-temperature freeze protection, and solution concentration monitoring to ensure the unit stays within its "safe operating zone."

Local & Remote Flexibility

Operators can toggle between "Local" and "Remote" modes directly from the panel, allowing for manual overrides or automated operation based on facility-wide cooling demand signals.

Document Name Description Document Type Language Action
Operational Manual ACQA36-00270 PDF English Download
Installation Manual ACQA36-00270 PDF English Download
Dimensional Drawings LH-006-415-007-3 PDF English Download
How does the 16LJ protect itself from crystallization?

The onboard microprocessor constantly calculates the solution concentration. If it detects a risk level, the system automatically stops the heat supply and initiates a dilution cycle to safely lower the concentration before it can solidify.

Can the chiller control my external water pumps?

Yes. The 16LJ control center is designed to interlock with your chilled water and cooling tower pumps, ensuring they operate only when the chiller is active and continue running during the essential post-shutdown dilution phase.

Is the control system user-friendly for non-specialists?

Absolutely. The touch screen interface uses intuitive icons and real-time data displays. It also features an "Expert Self-Diagnosis" function that identifies and explains any operational issues in plain text.

How does the unit handle very low cooling loads?

Unlike electric chillers that may "hunt" or cycle frequently, the 16LJ can modulate its capacity smoothly down to 10% of its rated load, making it highly efficient for facilities with variable occupancy or process requirements.

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