Chillers / Waste Heat Recycling

4-Pipe Chillers

R290 Heat Pump

Pure Thermal Industrial Process & Commercial HVAC Simultaneous Output 4-Pipe Chillers can provide both high temperature and low temperature outputs while operating with the Lowest Global Warming/Low Carbon and Natural Refrigeration Systems. Whether satisfying a retrofit application or a new project, Pure Thermal has a range of high-specification 4-Pipe Simultaneous Output Heat Pump-Chillers with capacities from 30kW to 3,000kW.

We don’t just provide equipment; we aim to add value by providing a complete range of support services to assist both system designers/specifiers and installation/integration contractors.

4 Pipe Chillers provide high efficiency Heating + Cooling, R290 80°C and Low GWP ranges, Ultra Low Noise capability

PURE EFFICIENCY | PURE SUSTAINABILITY | PURE SAVINGS

Quick Enquiry

    Key Services

    key services

    Design Support

    LEARN MORE

    key services

    System Optioneering

    LEARN MORE

    key services

    Supply & Commission

    LEARN MORE

    key services

    After-Sales Support

    LEARN MORE

    Capacities from 30kW to 900kW and output temperatures up to 120°C

    • Replace Chillers with Monobloc Single Stage 4-Pipe Chillers
    • Heat Pump-Chillers can provide High Temp Low Carbon Heating + Cooling
    • Retrofit means 1 x Electrical Supply = 2 x Outputs (Cooling and Heating)
    • Low global warming potential and Natural 4-pipe heat pump specialists
    • R290 Hydrocarbon Natural refrigerant 4-Pipe ranges
    • Heating output temperatures from 35°C to 80°C
    • Cooling output ranges from -20°C to 25°C
    • Dual or multiple source options Cooling or Waste Heat Source
    • Ultra-low noise options with 75dB(A) sound power level performance
    • F-gas phase-out ready Natural Refrigerant simultaneous output heat pump ranges

    Find Out More

    Pure Thermal: Leaders in Industrial Process & Commercial 4-Pipe Chillers

    With over 15 years of expertise, Pure Thermal has been at the forefront of the industrial and commercial Heat Pump and Chiller sector, delivering high-performance, energy-efficient solutions. Their commitment to innovation and sustainability ensures that every system meets the specific demands of its application, offering both performance and flexibility. Understanding the need for versatile and powerful heating solutions, Pure Thermal provides Simultaneous Output 4-Pipe Heat Pumps that enable businesses to maximise energy efficiency while reducing carbon emissions. Their supply, commissioning, and maintenance services ensure each project benefits from expert advice from the initial concept through to system specification and installation.

    High-Temperature, Low-Carbon Heating Solutions

    Pure Thermal’s industrial and commercial heat pump-chillers can deliver temperatures up to 120°C, making them ideal for a range of applications, including retrofits and new builds. With capacities ranging from 30kW to over 3000kW, these systems meet even the most demanding heating and cooling requirements. By using low-global warming refrigerants, including R290 propane, these heat pumps provide an eco-friendly alternative to traditional fossil fuel systems. The combination of high efficiency, application flexibility, and reduced operating costs makes them a future-proof investment for businesses looking to transition to sustainable heating solutions.

    Tailored Heat Pump Configurations for Every Application

    Pure Thermal’s 4 Pipe Pump-Chillers are available in single-stage (Monobloc) and two-stage system configurations, ensuring businesses can choose a solution that meets their specific needs. For medium-capacity applications, the Monobloc Single Stage Pure Thermal 4-Pipe Chillers deliver 80°C output temperatures without the need for a cascade or two-stage system. This simplifies installation while maintaining high efficiency and performance.

    These units are ideal to replace existing Chillers and also provide Low Carbon Heating with 4-Pipe Chillers and no need for additional power supplies i.e. 1 x Cable = 2 x Outputs.

    For larger applications, the Pure Thermal PLUS SO System provides a Two-Stage Simultaneous Output Heat Pump with single-system control and operation, offering capacities of 3000kW+. This system integrates both 4-Pipe Chillers and Water-to-Water units, ensuring seamless performance and maximum efficiency for large-scale projects.

    Dual-Source and Simultaneous 4-Pipe Heat Pump Technology

    Where waste heat is available, Pure Thermal’s Industrial 4-Pipe Chillers can operate with dual or multiple source configurations. This allows the system to draw heat from multiple sources, improving efficiency and reducing electricity consumption. For example, if a facility has a cooling requirement during the heating season, the heat pump can use chilled water return at 14°C instead of relying solely on external air at 7°C. This significantly increases operational efficiency, lowering energy usage and running costs. Additionally, Simultaneous 4-Pipe Heat Pumps can be implemented for both retrofit and new-build projects, offering businesses greater flexibility when designing low-carbon heating and cooling systems.

    Introducing the 4-Pipe R290 Ranges: The Future of 4 Pipe Chillers

    Pure Thermal is proud to introduce R290-FOUR, a true simultaneous unit designed to operate in three distinct modes: heating only, cooling only, and simultaneous heating and cooling (4-pipe operation) with Natural Refrigerant.

    Using R290 natural refrigerant, the R290-FOUR range combines ultra-low noise levels, advanced soundproofing, and optimised design, ensuring top-tier performance across various operating conditions. Its ability to recover and reuse waste heat makes it an environmentally friendly solution for businesses looking to reduce energy costs and carbon footprints. For businesses seeking expert guidance on high-performance, sustainable heat pump solutions, Pure Thermal provides a Heat Pump Ready Verification Service to ensure optimal system design and selection. Contact the team today to find the most suitable solution for your project.

    How the R290-FOUR Range Chiller-Heat Pumps Work

    Propane heat pumps operate on the principle of heat transfer and compression. In heating mode, they extract heat from the outdoor air (even in cold temperatures) and transfer it indoors to provide heating. In cooling mode, they reverse the process to remove heat from indoors and release it outside to provide cooling.

    Key Features of Simultaneous Heat Pump Units

    Replace existing Chillers with R290-FOUR and provide Low Carbon Heating as well as cooling; now 1 x Cable = 2 x Outputs.

    Simultaneous heat pump units utilise R290, a natural refrigerant with a Global Warming Potential (GWP) of just 3 and zero Ozone Depletion Potential (ODP), ensuring an environmentally sustainable cooling and heating solution. Designed for ultra-low noise operation, these units deliver up to 70°C in heating mode and -7°C in cooling mode, making them highly versatile across various applications. They do not require ATEX compliance, simplifying installation and regulatory approvals.

    The system can contribute up to four BREEAM points, enhancing a building’s sustainability rating. With up to 50% lower carbon footprint, based on annual refrigerant leakage assessments in line with TM65, these units provide a significant reduction in emissions. Their compact footprint allows for easy integration, making them a space-efficient and high-performance solution for both new and retrofit projects.

    Contact Our 4-Pipe Chiller Experts

    Key Benefits of Simultaneous Heat Pump Systems

    Simultaneous heat pump systems provide exceptional energy efficiency by recovering waste heat from the cooling process and repurposing it for heating. This heat recovery mechanism significantly reduces energy consumption compared to conventional HVAC systems, making them a cost-effective and sustainable solution for temperature management.

    These systems offer year-round climate control, ensuring stable indoor temperatures regardless of outdoor conditions. By efficiently delivering both heating and cooling, they eliminate the need for separate systems, improving operational efficiency and providing consistent comfort throughout the year. One of the major advantages of simultaneous heat pump systems is their ability to lower operating costs over time. Their high efficiency reduces energy consumption, particularly in buildings with fluctuating heating and cooling demands, leading to substantial savings on utility bills. Additionally, their low-carbon operation helps businesses and organisations meet sustainability targets by minimising greenhouse gas emissions.

    The compact design of simultaneous heat pump systems makes them ideal for buildings with limited mechanical space. Unlike traditional heating and cooling setups that require separate equipment, these systems optimise space usage while maintaining high performance. Although the initial investment may be higher than conventional HVAC systems, the long-term energy savings and improved efficiency contribute to a fast return on investment.

    With their versatility, simultaneous heat pump systems can be adapted for residential, commercial, and industrial applications, making them a flexible solution for buildings of all sizes. Their ability to provide reliable, cost-effective, and environmentally friendly heating and cooling positions them as a future-proof technology for businesses looking to enhance efficiency and sustainability.

    A Retrofit-Ready Solution for Existing Chillers

    Heat Pump-Chillers can directly replace traditional chillers, offering both heating and cooling simultaneously. The R290-FOUR range is designed for seamless retrofit applications, allowing businesses to upgrade to a more energy-efficient solution without disrupting operations. In facilities with a continuous cooling demand, such as hospitals, hotels, and industrial sites, the R290-FOUR range provides simultaneous heating and cooling, eliminating the need for separate heating systems. This ensures uninterrupted power supply, optimised energy efficiency, and lower operational costs while maintaining a stable indoor environment.

    By replacing conventional chillers, the R290-FOUR range enables businesses to transition to low-carbon heating and cooling technology, improving sustainability and regulatory compliance without requiring extensive system modifications.

    Applications of Simultaneous Heat Pumps

    Simultaneous heat pumps are ideal for buildings with constant heating and cooling demands, providing an energy-efficient and sustainable solution across various sectors.

    In hotels, they ensure year-round comfort by supplying heating for rooms and hot water while managing cooling needs in communal areas. Hospitals benefit from their precise temperature control, supporting patient care, sterilisation processes, and HVAC systems. Universities and educational institutions use simultaneous heat pumps to maintain comfortable learning environments, adapting to seasonal changes while optimising energy consumption. Leisure centres, including gyms and swimming pools, require simultaneous heating and cooling for climate control and water heating.

    In commercial buildings, these systems enhance occupant comfort while reducing operating costs, making them a cost-effective and low-carbon alternative to traditional HVAC systems. Their flexibility and efficiency make them suitable for diverse applications, ensuring sustainability and long-term savings.

    Dual Source Capability for Optimised Efficiency

    Pure Thermal’s advanced system design enables heat pumps to function as dual-source units, intelligently selecting the most efficient heat source based on temperature conditions and load availability. These systems can operate as either ground source or air source, depending on where the higher-grade heat is available. If the external air temperature is higher than the ground temperature, the unit will prioritise air as the primary heat source, maximising efficiency.

    Beyond ground and air sources, the system can be integrated with alternative high-grade heat sources, such as chilled water return lines or waste heat from cooling towers. The unit is designed to automatically switch between low- and high-grade heat sources, ensuring optimal performance, reduced energy consumption, and improved operational efficiency.

    Future-Proof Heating with Pure Thermal

    The fluorinated hydrocarbons (“F-gases”) refrigerants, such as R134a or R410A, have been in use for a long time now. These are synthetic refrigerants with a very high global warming potential and are harmful to the climate. In most of the applications, these refrigerants are completely banned; this asks for the adoption of natural refrigerants. The latest R290-FOUR range is completely future-proof; it uses a natural refrigerant, R290, with a very low global warming potential of 3 and an Ozone Depletion Potential (ODP) of 0.

    R290 (Propane) refrigerant functions in the same way as other refrigerants like HFOs and HFCs that have been in use up to now. The use of natural and “green” refrigerant propane (R290) makes this a climate-friendly heating system. Contact the Pure Thermal team today to explore how simultaneous heat pumps can provide cost-effective, high-performance heating and cooling for your project.

    GET IN TOUCH