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Views: 0 Author: Site Editor Publish Time: 2025-12-16 Origin: Site
Did you know that buildings account for nearly 40% of global energy consumption and over 30% of global CO₂ emissions? As the world moves quickly toward decarbonization and clean energy, water source heat pumps are emerging as one of the most efficient and sustainable HVAC solutions for both residential and commercial applications.
If you're looking for a high-performance, eco-friendly, and cost-effective heating and cooling option, you're in the right place. Whether you're managing a large commercial facility, designing an energy-efficient apartment complex, or running an industrial operation, understanding what a water source heat pump is might be the key to enhancing your system's performance and sustainability.
In this post, you'll learn all about water source heat pumps—how they work, their main components, key advantages, how they compare to other heat pump types, and why LYD's CO₂-based R744 water source heat pumps are leading the way in green HVAC technology.
Water source heat pumps utilize stable water temperatures from underground water, lakes, sea, or industrial waste heat to provide high-efficiency heating and cooling.
LYDS-160ZW water source heat pump uses CO₂ (R744), a natural refrigerant with ODP=0 and GWP=1, offering up to 98°C hot water and free cooling capability.
Ideal for hotels, hospitals, factories, and district heating, these systems deliver COPs of up to 7, offering major energy and cost savings.
A water source heat pump is a HVAC system that transfers heat to or from water to provide heating and/or cooling. Unlike air source heat pumps, which extract heat from ambient air, water source heat pumps use a stable water source—such as a river, lake, groundwater, or even waste heat from industrial processes—to regulate indoor temperatures.
At its core, a water source heat pump operates on the principle of thermodynamics, absorbing heat from a water loop and transferring it into a building for heating. In cooling mode, it removes indoor heat and disperses it into the water loop.
A water source heat pump typically works in a closed-loop system. Here's a simplified breakdown of its operation:
Heat Extraction: The system draws in water from a renewable source (e.g., lake, river, or geothermal well).
Heat Exchange: Heat is absorbed by a refrigerant (like CO₂ / R744) via a heat exchanger.
Compression: The refrigerant is compressed, increasing its temperature.
Heat Distribution: The heat is transferred to the building's air or water system to warm the space or domestic water.
Cooling Mode: In summer, the system reverses to remove heat from the building and send it into the water loop.
LYD's 160KW R744 water source heat pump allows easy switching between heating and cooling just by altering the water flow direction, offering dual functionality.
Understanding the internal structure helps understand performance. Below are the main components of a typical water source heat pump:
| Component | Function |
|---|---|
| Compressor | Increases refrigerant pressure and temperature |
| Heat Exchanger | Transfers heat between refrigerant and water loop |
| Expansion Valve | Reduces refrigerant pressure before re-entering the evaporator |
| Refrigerant (CO₂) | Absorbs and releases heat during phase changes |
| Water Source Loop | Circulates water from the source (lake, well, etc.) |
| Control System | Manages temperatures, modes, and system efficiency |
| Modbus Connectivity | Allows wireless, centralized control for advanced building integration |
| Touchscreen HMI | User-friendly interface for operations and settings |
COP values can reach up to 7 when both cooling and heating are used.
The LYDS-160ZW water source R744 heat pump by LYD offers double COP when using cooling and heating simultaneously.
Uses CO₂ (R744), a non-toxic, non-flammable, and climate-friendly refrigerant.
ODP = 0, GWP = 1.
Delivers hot water up to 98°C, ideal for domestic hot water, space heating, and industrial processes.
Can be used for heating, cooling, or both.
Suitable for multiple applications: radiant floors, fan coil units, and storage tanks.
Scale up capacity by combining multiple units.
Plug-and-play installation with existing piping systems—no major retrofits required.
Built with high-quality monobloc components for extended operational life.
Integrated 6-layer protection system ensures safety and longevity.
Water source heat pumps are increasingly used in the following settings:
Hotels – for centralized hot water and space heating.
Hospitals – consistent heating/cooling and sterilization via high water temps.
Factories – process hot water and waste heat recovery.
Office Buildings – integrated HVAC systems with centralized control.
Multi-family Housing – reliable hot water and space heating.
District Heating Projects – replacing gas/oil boilers with CO₂-based systems.
| Feature | Water Source | Air Source | Ground Source |
|---|---|---|---|
| Efficiency (COP) | ⭐⭐⭐⭐⭐ (up to 7) | ⭐⭐⭐ | ⭐⭐⭐⭐ |
| Installation Cost | ⭐⭐ | ⭐ | ⭐⭐⭐⭐ |
| Temperature Stability | ⭐⭐⭐⭐ | ⭐⭐ | ⭐⭐⭐⭐⭐ |
| Space Requirements | ⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐ |
| Environmental Impact | ⭐⭐⭐⭐⭐ (with CO₂) | ⭐⭐ | ⭐⭐⭐⭐ |
| Typical Applications | Commercial/Industrial | Residential/Small Projects | Industrial/Residential |
Water source heat pumps offer the best balance of efficiency and environmental impact, especially when combined with CO₂ refrigerant.
If you're considering installing or upgrading your HVAC system, ask yourself:
✅ Do you have access to a water source (e.g., lake, well, sea, or industrial waste heat)?
✅ Do you need reliable heating and cooling throughout the year?
✅ Are you aiming for net-zero emissions or green building certification?
✅ Is your current system outdated or reliant on fossil fuels?
If you answered yes, a water source heat pump—especially a CO₂ R744 model—is likely the perfect fit.
At LYD, we specialize in innovative, sustainable, and high-efficiency heating and cooling solutions. Here's why global clients choose us:
All our water source heat pumps use natural refrigerant R744 (CO₂).
Our 160KW Water Source R744 Heat Pump delivers up to 98°C hot water and free cooling in one system.
Combine multiple units to meet large-scale capacity needs.
Touchscreen + Modbus connectivity for central BMS integration.
Installed across Germany, Southeast Asia, and the Middle East in district heating, hotels, and industrial plants.
Custom engineering, technical consultation, and after-sales service worldwide.
The water source heat pump is no longer just a niche solution—it's a mainstream, high-efficiency, and future-ready option for buildings of all sizes. With increasing demand for sustainability, energy savings, and carbon reduction, choosing a CO₂-based water source heat pump from LYD is a smart, eco-conscious decision.
Whether you're replacing a gas boiler or designing a new green building, the LYDS-160ZW water source CO₂ heat pump delivers unmatched performance, environmental benefits, and operational cost savings.
A: Our CO₂-based units can reach a COP of 7 when heating and cooling are used together.
A: Yes. LYD's systems offer free cooling and high-temp heating in one unit.
A: No. Our models are plug-and-play and compatible with most existing piping.
A: Yes. It's non-toxic, non-flammable, with zero ozone depletion and minimal global warming impact.
A: Groundwater, lake water, seawater, and even waste heat from industrial processes.
