We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for heat pump.
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heat pump Product List and Ranking from 65 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Jan 07, 2026～Feb 03, 2026
This ranking is based on the number of page views on our site.

heat pump Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Jan 07, 2026～Feb 03, 2026
This ranking is based on the number of page views on our site.

  1. ジオシステム Tokyo//Energy
  2. サイエンス Saitama//environment
  3. マック Chiba//Industrial Electrical Equipment
  4. 4 トレイン・ジャパン Tokyo//Industrial Electrical Equipment
  5. 5 翔和 Saitama//Industrial Machinery
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heat pump Product ranking

Last Updated： Aggregation Period:Jan 07, 2026～Feb 03, 2026
This ranking is based on the number of page views on our site.

  1. Unused heat recovery heat exchange unit "G-HEX" ジオシステム
  2. Heat Pump System "eco Multi Heapon WSR" サイエンス
  3. Hot Gas Defrosting Device "Def-Mac" マック
  4. 4 HFC mixed refrigerant binary ultra-low temperature freezer "Mac Cryo" マック
  5. 5 High-performance compact program deep freezer 'FZ-1500ET' ストレックス

heat pump Product List

61～90 item / All 136 items

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Heat recovery waste heat utilization heat exchanger

Heat recovery waste heat utilization heat exchanger

For heat recovery and waste heat utilization! Widely used waste heat recovery heat exchangers.

At Katsukawa Thermal Engineering Co., Ltd., we provide heat exchangers aimed at the reuse of heat. The "plate-type heat exchanger" is a direct contact and counterflow type heat exchanger designed for heat recovery from gas to gas without dust. The plate-type heat exchanger consists of a pair of welded metal plates that are pressed into a wavy shape both vertically and horizontally, and multiple pairs can be combined to increase the heat transfer area. The gas on the heat receiving side and the gas on the heat releasing side are structured to avoid mixing through welding, and the wavy shape of the heat transfer plates takes thermal expansion differences into account. Additionally, similar to the plate-type heat exchanger, we also handle "feedwater preheaters (economizers)" used to preheat feedwater in order to improve boiler efficiency. 【Features】 - Heat exchangers to enhance boiler thermal efficiency - Reuse of heat from exhaust gases emitted by the boiler - Sending preheated fresh air to the boiler to improve combustion efficiency - Air preheating is incorporated into the combustion system to enhance combustion efficiency and is widely used for energy savings such as reducing fuel costs. For more details, please contact us or download the catalog.

  • Heat exchanger
  • heat pump

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Ultra-Low Temperature Deep Freezer Model Number M2885ULF-070A

Ultra-Low Temperature Deep Freezer Model Number M2885ULF-070A

By storing at an ultra-low temperature of -60℃, it suppresses the enzymatic breakdown of proteins and the oxidation of fats, and also prevents discoloration and deterioration of texture caused by freezer burn.

■Ease of operation ●Lightweight door that is easy to open and close We have adopted a lightweight door design to ensure that anyone can easily open and close it.

  • Stainless steel container
  • heat pump

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Low-temperature freezer

Low-temperature freezer

Ultra-low vibration small refrigeration unit (90 to 170 K)

This product features a compact low-temperature refrigeration unit with high cooling performance. The vibration of the cold head is very low, making it ideal for cooling systems that are sensitive to vibrations. Additionally, the cold head is designed to be directly connected to a vacuum chamber, facilitating easy integration into vacuum systems. By employing a closed-loop system for cooling, it can be used maintenance-free. Our company also offers the possibility of custom system fabrication using this product.

  • Refrigerators and freezers
  • heat pump

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Circulating Heating Heat Pump "CAONS"

Circulating Heating Heat Pump "CAONS"

Using refrigerant to extract heat from the air and heat circulating water.

"CAONS" is a circulation heating heat pump manufactured by Japan Carrier. It features two compressors and various products in the lineup, such as "CAONS140," which heats in two stages to high temperatures through the appropriate control of two different refrigerant cycles, and "CAONS45," which has a heating capacity of 4.5 kW. Please feel free to contact us when you need assistance. 【Features of CAONS140】 ■ Uses refrigerant to capture heat from the air ■ Equipped with two compressors, it controls two different refrigerant cycles appropriately to heat in two stages ■ Transfers the heat from the high-temperature refrigerant to water, raising and maintaining the temperature of the circulating water ■ Provides heat to cleaning devices, heating devices, etc., that require thermal energy through the circulating hot water *For more details, please refer to the related links or feel free to contact us.

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  • Other pumps
  • heat pump

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FRP Pool

FRP Pool

Excellent durability and thermal insulation properties of FRP, with a focus on safety! Easy maintenance as well!

The "FRP Pool" is a pool composed of two types of panels: the main body of the pool consists of a floor panel and a deck-side integrated panel. Due to the variety of combinations, it can accommodate a wide range of needs in terms of size, water depth, and slope. Additionally, by installing multiple drainage and circulation pits, not just one in the center, the design also considers safety against suction accidents. We also offer a "Toddler Pool" designed with safety as a top priority. 【Features】 ■ Simple structure with flexible combinations ■ Consideration for thorough safety ■ No concerns about corrosion, maintaining a smooth surface over time ■ Easy to clean, reducing worries about repainting, and economical ■ Construction time can be significantly shortened *For more details, please refer to the PDF materials or feel free to contact us.

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  • others
  • heat pump

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Stainless Steel Coated Pool

Stainless Steel Coated Pool

High-quality pool made with premium stainless steel plates! Resistant to rust and excellent durability.

The "Stainless Steel Coated Pool" is a high-quality pool that utilizes the properties of stainless steel, which is resistant to rust and has excellent durability. The surface is beautifully finished and smooth, requiring little maintenance and management. It is manufactured based on meticulous structural calculations, ensuring that it does not deform under water pressure or external pressure, allowing for semi-permanent use. 【Features】 ■ Excellent seismic resistance, corrosion resistance, and durability ■ Made from high-grade stainless steel (SUS304) ■ Rich in torsion, tension, and bending, providing superior seismic resistance ■ Hygienic and easy to maintain ■ Difficult for algae and water stains to adhere, making cleaning easy *For more details, please refer to the PDF document or feel free to contact us.

  • others
  • heat pump

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Unpainted Stainless Steel Pool

Unpainted Stainless Steel Pool

Low painting costs and reduced maintenance expenses! Many successful applications in school pools!

The "Stainless Steel Unpainted Pool" is an environmentally friendly, recyclable pool designed for a circular economy, with low painting costs and reduced maintenance expenses. Except for the painted areas of the line sections, the interior surface of the pool is silver stainless steel. When filled with water, it reflects a light blue color due to sunlight, similar to how ocean water appears blue, creating a clean and refreshing pool. We can accommodate all shapes and needs, including deformation and steps. 【Features】 ■ Environmental conservation and resource recycling ■ Durability and corrosion resistance ■ Cost reduction ■ Aesthetic appeal *For more details, please refer to the PDF document or feel free to contact us.

  • others
  • heat pump

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Ceramic Tile Stainless Pool

Ceramic Tile Stainless Pool

Using high-quality ceramic tiles that can keep the pool surface beautiful for a long time!

The "Ceramic Tile Stainless Pool" is a pool that combines the excellent waterproofing and durability of a stainless pool with the beauty of ceramic tiles. It creates an elegant atmosphere suitable for a high-grade pool as a place for relaxation. 【Features】 - High corrosion resistance and durability, with no worries about leaks due to cracks - High strength and lightweight pool body - Can be safely installed in any location, such as inside buildings or on rooftops - Uses highly durable tiles - Achieves a fashionable pool design - Significantly shortens construction time *For more details, please refer to the PDF materials or feel free to contact us.

  • Pure water production equipment
  • Water Activation Device
  • Thermostatic water bath
  • heat pump

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High-performance heat pump "ECU Series"

High-performance heat pump "ECU Series"

High-performance heat pump that combines high performance, high reliability, and high durability.

The "ECU Series" is a device that extracts unused heat and waste heat that has been discarded until now, using it as an energy source to generate new hot water. Compared to the conventional simple heating method that relies on the heat from burning fuel, it significantly contributes to reducing fuel costs and CO2 emissions. 【Features】 ■ Produces hot water up to 95°C ■ Operates with a heat source as low as 12°C ■ High performance, high reliability, high durability ■ Achieves a maximum COP value of 7.59 *For more details, please download the PDF or feel free to contact us.

  • Heating device
  • Other heaters
  • Other energy equipment
  • heat pump

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Medical refrigerator / Vehicle-mounted deep freezer DW-80WZ15

Medical refrigerator / Vehicle-mounted deep freezer DW-80WZ15

Biobank, vaccine transportation, long-distance ultra-low temperature transportation, multiple power supply support.

- This is a compact ultra-low temperature freezer that can use a car battery (DC24V). - It can maintain ultra-low temperatures of -80°C with a uniformity of ±3°C for long periods without the need for dry ice, making it suitable for transporting vaccines, pharmaceuticals, and reagents. - Long-term freezing storage is also possible using an AC220V power supply or a transformer. - The handle is embedded and does not protrude. - The lid can be fitted with a lock (padlock). - Excellent temperature uniformity inside the cabinet. - Designed with a 25mm VIP + 70mm thick LBA foam insulation layer and dual seal strips for better insulation. - Low noise.

  • Refrigerators and freezers
  • heat pump

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High Efficiency Aquifer Thermal Energy Storage Heating and Cooling System (Hi-ATES)

High Efficiency Aquifer Thermal Energy Storage Heating and Cooling System (Hi-ATES)

Utilize cooling exhaust heat in winter and heating exhaust heat in summer. Improve the efficiency of heating and cooling to save energy and reduce CO2 emissions.

The "High Efficiency Aquifer Thermal Energy Storage Heating and Cooling System" achieves high efficiency in heating and cooling by using cold groundwater, which stores winter's chill, for summer cooling, and warm groundwater, which stores summer's heat, for winter heating. By combining it with solar collectors and non-water-spraying snow melting facilities, the amount of stored heat is significantly enhanced. It has been established as a high-efficiency system that can utilize groundwater in more advantageous temperature ranges. In the fiscal year 2020, it received both the "Minister of the Environment Award for Climate Change Action" and the "Minister of Economy, Trade and Industry Award for New Energy Grand Prize." [Features] - Utilizes cooling waste heat (thermal energy) as a heating source and heating waste heat (cooling energy) as a cooling source. - Contributes to reducing summer road surface temperatures by burying pipes in parking spaces. - There are examples of reducing monthly CO2 emissions by over 60%. *For more details, please refer to the materials. Feel free to contact us with any inquiries.

  • air conditioning
  • heat pump

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Simple Water Quality Test Paper Aqua Tester

Simple Water Quality Test Paper Aqua Tester

It is easy to test pool water.

The Aqua Tester is a popular simple water quality test paper sold in the United States by Rainbow Lifeguard Company.

  • Other safety and hygiene products
  • heat pump

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Pool Sterilization Machine UFO

Pool Sterilization Machine UFO

It is necessary to maintain it at the specified 0.4 ppm.

By placing a dedicated Nisso Haikuron tablet (100g) inside the body and setting it in the pool, it can gradually dissolve while maintaining a consistent sterilization effect.

  • Other water treatment equipment
  • heat pump

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Two-Dimensional Three-Dimensional Transport Flight Conveyor 'Sunecon (DD Type, SD Type)'

Two-Dimensional Three-Dimensional Transport Flight Conveyor 'Sunecon (DD Type, SD Type)'

Excellent quantitativeness, sealing performance, and cost-effectiveness! An efficient conveyor that can take flexible transport shapes.

The "Sunecon" is a flight conveyor designed for the two-dimensional three-dimensional transport of bulk materials such as powders, granules, and sludge. We offer the "DD type" for transporting powders and granules using a piston (flight) to push them forward, and the "SD type" suitable for transporting materials with moisture content or stickiness, such as dewatered cakes. With various transport shapes available, including Z type, S type, I type, L type, and WZ type, installation plans can be tailored to meet your preferences through combinations of transport shapes. [Features] ■ Transport shapes can be selected from horizontal, vertical, and inclined options. *For more details, please refer to the catalog or feel free to contact us.

  • Other conveying machines
  • Powder Conveyor Device
  • Conveyor
  • heat pump

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Pool-related products catalog

Pool-related products catalog

Pool equipment such as course ropes, course rope winders, observation towers, and pool floors.

- Course rope - Low buoyancy course rope - Course rope reel - Detachable stairs (foldable) - Pool floor V-leg type - Foldable pool floor - Aluminum observation tower - Sports timer - Color bench

  • others
  • Municipal services and business location
  • Other CAD
  • heat pump

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Flight conveyor

Flight conveyor

A must-see for those in the mining, water treatment, paper, and fertilizer industries! Chain conveyors that accommodate various layouts.

The "Flight Conveyor," which enables horizontal, vertical, and two-dimensional transportation, is suitable for transporting powdery materials and dewatered cakes. It allows for transportation from small capacities. With a compact design, it can be arranged in narrow spaces, and it operates with low power consumption. Additionally, it has a variety of layout shapes, allowing for multiple configurations for input and output, and due to its sealed structure, it does not generate dust. 【Features】 ■ Compact design allows for placement in narrow spaces ■ Operates with low power consumption ■ Sealed structure prevents dust generation ■ Capable of transporting from small capacities ■ Supports various layouts *For more details, please refer to the PDF materials or feel free to contact us.

  • Conveyor
  • heat pump

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Nakata Engine Co., Ltd. Engine Maintenance

Nakata Engine Co., Ltd. Engine Maintenance

Achieving efficiency through in-house maintenance of all processes such as inspection, processing, and assembly!

At Nakata Engine Co., Ltd., engine maintenance is carried out swiftly and accurately along a consistent line that includes the processes of "disassembly - cleaning - measurement inspection - machining - assembly - test run." We have achieved efficiency through in-house maintenance for all processes such as "inspection - machining - assembly." We aim for the shortest delivery times and cost value for customer satisfaction. We also accommodate load testing up to 750KW. Furthermore, we respond quickly to regular inspections and on-site overhaul work. We have a proven track record in the maintenance of gas engines and diesel engine power generation equipment, receiving high evaluations. For more details, please contact us or refer to our catalog.

  • Processing Contract
  • Other contract services
  • heat pump

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Consultation OK for PONCHI drawings: Flight Bucket Conveyor N Conveyor

Consultation OK for PONCHI drawings: Flight Bucket Conveyor N Conveyor

Transport without spilling, horizontal, vertical, and horizontal conveyance! Suitable materials for the transported items can be selected. Consultations with sketches are also welcome!

The "N Conveyor" is a flight conveyor that can transport items without leakage, capable of horizontal, vertical, and horizontal transport. It handles three stages of transportation—horizontal, vertical, and horizontal—using a single unit, completely eliminating transfers to prevent leakage of items, contamination by foreign objects, and spills. Multiple inlets and outlets can be installed, allowing for various manufacturing line layouts. We also accept consultations with sketches! The process is simple and consists of three steps. ■ Steps 1) Download the design request form 2) Submit your request via fax or email 3) We will respond to you from our side. *For more details, please refer to the PDF materials or feel free to contact us.

  • Conveyor
  • heat pump

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Air-cooled direct expansion high-performance air handler

Air-cooled direct expansion high-performance air handler

Low-load control compatible model equipped with a 2-way direct expansion coil and hybrid humidification.

A model that won an energy-saving award by achieving both improved control and air quality during low load conditions with a "2-way circuit direct expansion coil" and "hybrid humidification." ■ Features of the high-performance air handler 13°C supercooled dehumidification: Designed to enable energy-efficient low-temperature airflow. Hybrid humidification: Capable of using a combination of steam and evaporative humidification methods. 2-way circuit: Demonstrates control during low load conditions, such as in intermediate periods. Alternate defrost: Prevents complete shutdown of the outdoor unit during winter heating. Grooved oval tube coil: Utilizes grooved oval coils for enhanced efficiency.

  • air conditioning
  • heat pump

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Air handling unit with air-cooled direct expansion

Air handling unit with air-cooled direct expansion

Standard model of individual heat source air handler.

This is a highly versatile air handling unit with direct expansion cooling. It eliminates the need for chilled and hot water source equipment and water piping, simplifying installation and making it suitable for renovations. ■ Features of the direct expansion air handling unit Grooved oval tube coil: Utilizes grooved oval coils for improved efficiency. 13°C supercooled dehumidification: Designed for energy-efficient low-temperature airflow.

  • air conditioning
  • heat pump

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Case Studies of Optimal Air Conditioning by Field 2015-2024

Case Studies of Optimal Air Conditioning by Field 2015-2024

【Case Study Collection】Approximately 50 cases categorized by field! 【Free Gift】

This is the latest case study collection that categorizes spaces requiring diverse air conditioning into three areas: industrial, commercial, and healthcare, featuring approximately 50 examples by field. ■ Industrial Sector * Manufacturing plants, precision factories, research facilities… air-cooled direct expansion air handlers, air beams * Maintenance shops, warehouses, exhibition facilities… factory zone air conditioning units * Food and pharmaceuticals… low-temperature outdoor units, rooftop outdoor units ■ Commercial Sector * Offices, public facilities… water-cooled HP twin-cycle dehumidifying outdoor units, etc. * Stores, commercial facilities… fan coils, rooftop outdoor units, heat recovery outdoor units, etc. * Hotels… air beams ■ Healthcare Sector * Schools, offices… air-cooled direct expansion air handlers, heat recovery outdoor units, air beams, etc. * Gyms… factory zone air conditioning units * Libraries, hospitals… air beams, etc. Numerous product implementation examples are included. For details, please view the PDF data available for download. ★☆ A printed version will be provided ☆★ Please apply through the contact form.

  • air conditioning
  • heat pump

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High-performance turbo refrigeration unit "GART/GART-I Series" product catalog

High-performance turbo refrigeration unit "GART/GART-I Series" product catalog

Featuring a high-performance turbo freezer lineup for medium to large capacities.

The product catalog for the high-performance turbo refrigeration units "GART/GART-I Series" is published by Bisho Co., Ltd., which engages in the sale and installation of environmental equipment. It includes fixed-speed turbo refrigeration units "GART Series" and inverter turbo refrigeration units "GART-I Series." [Contents] ■ Features of "GART/GART-I Series" ■ Standard specifications ■ External dimensions, weight, and service area ■ Brine and heat recovery unit specifications (example) and more For more details, please refer to the catalog or feel free to contact us.

  • Cooling system
  • Heat exchanger
  • heat pump

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[FEB - Inspection and Cleaning Service Case] Toyohashi City Ironworks

[FEB - Inspection and Cleaning Service Case] Toyohashi City Ironworks

Veteran professionals with specialized knowledge carefully inspect and clean each unit one by one.

We would like to introduce a case where we were requested to provide inspection and cleaning services at Toyohashi City Ironworks. This customer has installed 17 units of floor-mounted heat pumps, and due to the ironworks environment, iron dust is circulating and adhering to the machinery. To ensure that the equipment can be used safely and securely for a long time, our experienced professionals with specialized knowledge carefully inspect and clean each unit one by one. 【Case Overview】 ■ Equipment: Floor-mounted heat pumps ■ Issue: Iron dust circulating in the ironworks adheres to the machinery ■ Service Content: Inspection and cleaning *For more details, please refer to the related links or feel free to contact us.

  • air conditioning
  • Other services
  • heat pump

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Non-Freon Hot Air Heat Pump Eco Sirocco

Non-Freon Hot Air Heat Pump Eco Sirocco

Instantly heat ambient air to a maximum of 120°C.

◆Overview "Eco Shirocco" is the ideal equipment for transient hot air supply systems used in paint drying booths, drying ovens, dryers, tray cleaning machines, spray dryers, heating chambers, reduction devices, and desiccant rotor regeneration for dehumidification. It achieves 50% energy savings compared to conventional methods using boilers and burners, while also allowing for cold water supply. If there is cooling water for cooling after heating, industrial water, various cooling waters, cold water for dehumidification, and steam condensate, heat can be recovered from these sources, enabling power reduction of existing chillers, prevention of cooling water temperature rise in summer, and heat reuse. For more details, please contact us or download the catalog.

  • Hot air dryer
  • Dehumidifier
  • Other heating equipment
  • heat pump

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Turbo chiller using ultra-low GWP non-Freon refrigerant.

Turbo chiller using ultra-low GWP non-Freon refrigerant.

Excluded from the 'Fluorocarbon Emission Control Law' and 'High-Pressure Gas Safety Law'! A full lineup covering all capacity ranges from small to large.

This is a turbo chiller that was the first in the world to adopt non-Freon refrigerants, significantly reducing environmental impact. Due to the use of low-pressure refrigerants, it is not subject to the High-Pressure Gas Safety Act, eliminating the need for qualified personnel and various notification management tasks. Additionally, as it is non-combustible, there is no need to comply with the regulations and guidelines required for 2L (mildly flammable) refrigerants. 【Features】 ■ Non-Freon and ultra-low GWP ■ Low-pressure refrigerant ■ World’s highest efficiency COP 6.5 (50 Hz example) ■ Non-combustible ■ Low rotation, low noise, low vibration

  • air conditioning
  • heat pump

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Air Conditioning Basics: What is a Turbo Refrigeration Machine?

Air Conditioning Basics: What is a Turbo Refrigeration Machine?

It is possible to manage air conditioning for a wide area all at once! Introducing the work and types of turbo chillers.

Train is a long-established manufacturer that has conducted advanced technological revolutions in the development of turbo refrigeration systems. It has fundamentally changed the industry's perception of large air conditioning systems, and the continuation of this technological innovation has resulted in high-efficiency turbo refrigeration systems that quickly adopted non-fluorocarbon refrigerants such as "R-1233zd" and "R-514A." This article will explain the structure and mechanism of turbo refrigeration systems. [Contents] ■ Methods of air conditioning ■ Central air conditioning ■ The work of turbo refrigeration systems ■ Types of turbo refrigeration systems ■ Components of turbo refrigeration systems ■ Refrigerant circulation in turbo refrigeration systems *For detailed content of the article, please refer to the related links. *For more information, please refer to the PDF materials or feel free to contact us.

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  • heat pump

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Case Study of Non-Freon Turbo Refrigeration System: Tokyo Gas Co., Ltd.

Case Study of Non-Freon Turbo Refrigeration System: Tokyo Gas Co., Ltd.

Price, performance, and track record! A case evaluated for stability with non-Freon refrigerants and a wide range of loads.

We would like to introduce a case study of the installation of the "R-514A adopted turbo chiller" at the Senju Techno Station of Tokyo Gas Co., Ltd. From general specifications such as inverterization and free cooling to special applications like operating turbo chillers at low loads for extended periods, our customers have various needs and challenges. After installation, by analyzing the before-and-after data to confirm energy-saving effects, it becomes possible to implement a PDCA cycle to identify areas for improvement. 【Case Overview】 ■Challenges - Due to global climate change measures, environmental initiatives are mandated for companies and organizations. - There is a growing awareness of the need for non-fluorocarbon solutions and CO2 reduction. ■Proposal - The risk of oxygen deficiency accidents caused by high-pressure refrigerants is extremely low. - Being exempt from the High-Pressure Gas Safety Act and the Fluorocarbon Emission Control Act also provides maintenance advantages. *For more details, please refer to the related links or feel free to contact us.

  • Other air conditioning equipment
  • heat pump

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[Case Study of Facility Renovation at a Resort] Pacific Palm Resort

[Case Study of Facility Renovation at a Resort] Pacific Palm Resort

Cost reduction through business efficiency improvement! Achieving high efficiency not only for the refrigeration unit alone but for the entire system.

We would like to introduce a case study of the "inverter-equipped turbo chiller" implemented at Pacific Palm Resort. The company's air conditioning system has been in use since its establishment 35 years ago without any changes. The efficiency of the aging air conditioning system was very low, and it became a significant area for improvement in achieving energy savings and comfort throughout the facility. They decided to update the air conditioning system, control systems, EMS, lighting, and services, successfully implementing new equipment, ensuring comfort, saving energy, and reducing running costs. 【Results】 - In the first year, a reduction of approximately $342,900 (about 38 million yen) in energy consumption - Achieved a reduction of approximately $203,000 (about 22 million yen) in running costs excluding energy - Obtained approximately $500,000 (about 55 million yen) in subsidies through this project *For more details, please refer to the related links or feel free to contact us.

  • Other air conditioning equipment
  • heat pump

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Air Handling Unit

Air Handling Unit

The custom air handler made by Train offers the highest level of flexibility and achieves precise performance even in the most challenging applications.

Train has unparalleled system expertise and has been designing and manufacturing custom air handling solutions for over 40 years. By collaborating with customers at each stage of the process and understanding the project specifications, goals, and construction schedule, we propose optimal solutions. We then design and manufacture custom units, conducting tests at our factory to ensure they meet customer requirements.

  • Ventilation and Exhaust
  • heat pump

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