What Is Under Counter Water Chiller Dispenser?
Also referred to as an under sink water chiller, built-in water cooler, or refrigeration unit, this appliance uses a refrigerant-based circulation system to cool water efficiently. It is engineered to:
- Maintain a constant water temperature between 3°C and 8°C
- Deliver steady water flow and pressure
- Be seamlessly installed under the counter without occupying visible space
This system integrates with your existing kitchen or office water tap and works quietly in the background while enhancing water quality and accessibility.
Advantages of Under Counter Water Chiller Dispenser
✅ 1. Instant Access to Chilled Drinking Water
Unlike traditional refrigeration methods where you have to fill a jug and wait hours for it to cool, an under counter water chiller provides ice-cold water instantly, straight from the tap. It's designed for high efficiency and is connected directly to your tap system, delivering chilled water at a consistent temperature of 3°C to 8°C.
This is especially ideal for:
- Making iced coffee or tea instantly
- Preparing cold beverages during summer
- Staying hydrated throughout the day at work or home
No more storing water bottles in the fridge or wasting time waiting-just pure, refreshing water on demand.
✅ 2. Smart, Space-Saving Design for Any Environment
The compact and concealed design of an under sink water chiller saves valuable counter space, making your kitchen or office look clean and modern. It is installed neatly inside your base cabinet and works quietly, without interfering with your daily routines.
Perfect for:
- Small kitchens with limited space
- Modern minimalist designs where clean countertops are preferred
- Shared office spaces where multiple users need access to cold water without clutter
Unlike bulky countertop water coolers, this solution is built-in and hidden, providing function without sacrificing style.
✅ 3. Advanced Water Filtration for Better Health
Many under counter water chillers can be paired with multi-stage filtration systems, improving the taste and safety of your drinking water. These systems help eliminate:
- Chlorine, which often causes a strong odor or taste
- Heavy metals like lead or mercury
- Bacteria and organic contaminants
- Rust, sediment, and microplastics
The result is crisp, clean, and great-tasting water-ideal for families, employees, or customers who care about water purity.
For best performance, we recommend using:
- PP sediment filters to remove particles
- Carbon block filters for taste and odor improvement
- Ultrafiltration or RO membranes for maximum contaminant removal
✅ 4. Energy-Efficient and Eco-Friendly Operation
Our under counter chillers are engineered with low-power compressors and smart standby features, helping you reduce both your electricity bill and your carbon footprint.
Compared to traditional water coolers or large refrigerators, this system:
- Consumes less energy per liter of water cooled
- Uses environmentally friendly refrigerants
- Automatically adjusts power use based on demand
- Reduces the need for plastic bottled water, lowering environmental waste
It's an ideal choice for businesses and eco-conscious homeowners looking to reduce operating costs without compromising on performance.
✅ 5. Hygienic, Low-Maintenance Water Cooling
Under counter water chillers are built with sealed systems, reducing the risk of external contamination. Unlike open water coolers or bottles, there's no manual water handling involved, which minimizes bacteria exposure.
Key features include:
- Stainless steel water coils or reservoirs for hygiene and durability
- Self-cleaning or easy-flush design (optional on some models)
- Quick-change filter cartridges that require minimal effort to maintain
Maintenance is simple and safe-just replace the filters as needed, and you're ready to enjoy cold water again.
Under Counter Water Cooler Dispenser
The under-counter water cooler dispenser ensures that cold water is always available, making it a practical and environmentally friendly choice for modern homes.
Under Sink Chilled Water Systems
The under-sink chilled water system provides a continuous and stable supply of frozen water to ensure the purity and safety of the water, allowing you to drink with confidence and enjoy convenience. Neither bottled water nor water dispensers can compare.
Under Counter Chilled Water Dispenser
The under-counter chilled water dispenser provides effortless cold water access and provides convenience, efficiency, and a sleek design for any kitchen or office. Temperature： 3-8°
At Xiamen Smart Water Tech, we offer a variety of under-sink water chillers that provide fresh, filtered water straight from your water supply.
The Under Sink Water Chiller Unit ensures that the water temperature is always maintained between a pleasant 3-12°C, making hydration more convenient and efficient, allowing you to enjoy cool moisture at any time in your busy life. Whenever you reach for water, the under-sink water cooler immediately starts the ultraviolet disinfection process to ensure that every drop of water is pure and sterile, protecting your health.
Under Counter Water Chiller Dispenser
Under Counter Water Chiller Dispenser effectively chills your filtered water, delivering a refreshing, refreshing taste every time. It is recommended to install a Water Filter system before the chiller.
Our factory
Xiamen Smart Water Technology Co., Ltd is a manufacturer behind many of the top international under-sink drinking water system brands.
Professional team
We reinvest 10% of our sales revenue in R&D. We have 5 invention patents, 21 utility model patents, and 28 appearance patents. Our high-quality R&D team can efficiently design new products, analyze and improve existing products, and provide customers with the most cost-effective products.
Quality assurance
Our factories meet the highest quality requirements stipulated in ISO9001, ISO14000:14001 SGS guidelines, and our stringent quality control system, and also pass UL, CB, CE, ERP, WRAS, UKCA, RoHS, REACH, PAHS, and SCCP international standards.
OEM & ODM available
We can customize products according to the specific needs of customers. We can produce dispensers and faucets with different functions, shapes, sizes, and colours to meet the specific requirements of customers.
After-sales service
We offer two-year warranties on our products and provide ongoing support and maintenance services.
Types of Under Counter Water Chiller Dispenser
Air-cooled water chiller
An air-cooled water chiller uses ambient air to remove heat from the refrigerant. These systems feature finned condenser coils and high-efficiency fans that blow air over the coils to transfer heat away from the refrigerant, cooling the water inside.
Water-cooled water chiller
A water-cooled water chiller uses circulating water to condense the refrigerant. It typically includes two water circuits: one for the process water and another for the cooling water, often connected to a cooling tower or dedicated water supply system.
Application of Under Counter Water Chiller Dispenser
Residential use
In modern homes, under counter water chiller dispensers are a practical solution for ensuring a constant supply of chilled, filtered water directly from the kitchen tap.
Common household uses include:
- Drinking water – Enjoy ice-cold, great-tasting water on demand, especially during summer.
- Food and beverage preparation – Perfect for making iced coffee, smoothies, cold teas, or refreshing fruit-infused drinks.
- Faster ice-making – Speeds up ice cube preparation by providing pre-chilled water.
- Compact and space-saving – Fits neatly under the sink and eliminates the need for bottled water or countertop water coolers.
Hospitality use
Under counter water chiller dispensers are ideal for hotels, event venues, bars, and catering businesses that require efficient water cooling solutions for guest service and food preparation.
Key hospitality applications:
- Cold water service at events – Keeps guests refreshed with instant cold water access.
- Catering prep – Used to rapidly chill beverages and pre-cool ingredients for salads or desserts.
- Bar support – Supplies cold water for mixing cocktails, rinsing utensils, or prepping garnishes.
Commercial use
Restaurants, cafés, offices, and convenience stores benefit significantly from under counter chiller dispensers due to their high-capacity, on-demand cooling.
Typical commercial uses include:
- Cold water for dining areas – Provides instant chilled water to customers and staff.
- Drink preparation – Supports cold brew coffee, iced teas, sodas, and juice mixes.
- Cooling condiments – Keeps sauces, dressings, or garnishes at safe serving temperatures.
- Retail use – Supermarkets and convenience stores use these chillers to cool bottled water and pre-packaged drinks for immediate sale.
Industrial use
Beyond residential and commercial settings, under counter water chillers are also used in industrial environments for process cooling and machinery protection.
Industrial applications include:
- Machinery cooling – Helps maintain optimal operating temperatures for sensitive equipment, preventing overheating and extending equipment lifespan.
- Product cooling – Used to chill finished products or raw materials during production processes.
- Workplace safety – Keeps manufacturing areas cooler and reduces heat-related risks for operators.
Components of Under Counter Water Chiller Dispenser
The condenser:
It performs the most major task, which is the elimination of heat from the water chiller to maintain the temperature.
Evaporator unit:
It collects excessive heat by using the evaporation mechanism. Include:
(1). Tank with coil type: If your site is a closed water loop, can choose this type.
(2). Shell and tube type, or plate heat exchanger type: If your side is an open type water loop, can choose this type.
The control unit:
This being the heart of the water chiller controls all the functions of other components. The parameters of the process are programmed through the control unit.
The compressor:
The compressor regulates the flow rate of the refrigerant. It also controls and maintains the pressure of the refrigerant by which it flows in the pump.
How Does an Under-Counter Water Chiller Dispenser Work?
An under counter water chiller dispenser uses a sophisticated cooling system that integrates two primary circuits:
- The Refrigeration Circuit
- The Chilled Water Circuit
These two circuits work together to chill tap water and deliver it directly to your faucet at temperatures typically between 3°C and 8°C, ideal for drinking, cooking, or making iced beverages. Let's break down the system and explore how each component operates.
Overview of the Refrigeration and Water Circuits
- Refrigeration Circuit:
- This is the engine of the cooling system. It performs thermodynamic processes such as compression, condensation, expansion, and evaporation to remove heat from the water.
- Chilled Water Circuit:
- This is the distribution system where cold water is delivered from the chiller to your kitchen faucet or appliance. It operates mainly through heat exchange-transferring thermal energy from the water to the refrigerant.
The Vapor Compression Cycle Explained
The refrigeration circuit in an under counter chiller operates based on a vapor compression refrigeration cycle-the same technology used in refrigerators and air conditioners. Here's how it works step-by-step:
1. Compression Stage
The refrigerant begins in a low-pressure vapor state after absorbing heat from the water inside the evaporator.
A compressor raises the pressure and temperature of the refrigerant, pushing it into the condenser coil.
At this point, the refrigerant is a high-pressure, high-temperature gas.
✅ Purpose: Prepare the refrigerant for heat rejection.
2. Condensation Stage
In the condenser, the hot refrigerant gas flows through coils exposed to air (air-cooled) or water (water-cooled).
The heat from the refrigerant is transferred to the surrounding environment due to a temperature gradient.
As the refrigerant cools, it condenses into a high-pressure liquid.
✅ Result: Heat is removed, and the refrigerant becomes ready for expansion.
3. Expansion Stage
The liquid refrigerant passes through an expansion valve (like a thermal expansion valve or capillary tube).
The valve drops the pressure, which also significantly lowers the temperature.
A portion of the refrigerant evaporates instantly, helping pre-cool the remaining liquid.
✅ Purpose: Prepare the refrigerant for heat absorption in the evaporator.
4. Evaporation Stage
The cold, low-pressure refrigerant enters the evaporator, where it comes into direct contact with water or a water-cooled surface.
As it absorbs heat from the water, the refrigerant evaporates into a gas, while the water is chilled.
The now vaporized refrigerant returns to the compressor, and the cycle repeats.
✅ Result: Chilled water is now available for dispensing.
How to Install The Under Counter Water Chiller Dispenser
Prepare space
Measure the area under the counter and make sure there is enough space to place the unit.
Turn off the water
Make sure the water supply is turned off to avoid any leaks during installation.
Hook up
Connect the water chiller to the water chiller water pipe using the included fittings.
Power on
Plug the unit into a grounded electrical outlet. Make sure it meets the voltage requirements.
Test the water flow
Turn on the water and check for leaks before turning on the water chiller.
Set the temperature
Adjust the chilling temperature to your desired level and enjoy refreshing ice water.
Our Factory
Xiamen Smart Water Technology Co., Ltd. is a trusted global manufacturer specializing in total under-sink drinking water solutions. From the first stage of advanced water filtration systems to an extensive range of drinking water faucets, we design and produce high-quality products that deliver boiling, chilled, sparkling, and ambient hot/cold filtered water-all in one seamless system.
With cutting-edge technology, proven production processes, and competitive pricing, we proudly serve customers worldwide. Our product range includes:
- Filtered Boiling Water Systems
- Under-Sink Chilled Water Dispensers
- Sparkling Water Systems
- Ambient Hot and Cold Water Solutions
- Complete Drinking Faucet Series
- Customizable Water Filtration Units
At Xiamen Smart Water, we are committed to enhancing the safety, quality, and enjoyment of everyday drinking water. Our mission is to create smart, stylish, and sustainable water systems for residential, commercial, and industrial applications-empowering healthier lifestyles across the globe.
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