5 Ton Water Chiller: Air & Water-Cooled Selection
A 5 ton water chiller represents a nominal refrigeration rate of 60,000 Btu/h, or approximately 17.6 kW. That conversion describes the nominal size only. The actual cooling capacity of a selected chiller depends on the leaving and entering fluid temperatures, condenser conditions, ambient temperature, fluid type and concentration, flow rate, fouling allowance, and electrical supply.
GESON evaluates air-cooled and water-cooled configurations for industrial process cooling. A written selection should state the duty point and operating limits before an order is placed.
What Does a 5 Ton Chiller Rating Mean?
A refrigeration ton is a heat-removal rate, not the shipping weight of the machine. NIST lists one ton of refrigeration as 12,000 Btu/h, equal to 3.516853 kW. Therefore, five refrigeration tons convert as follows:
| Nominal rating | Equivalent heat-removal rate | Selection note |
|---|---|---|
| 5 refrigeration tons | 60,000 Btu/h | Nominal unit conversion |
| 5 refrigeration tons | Approximately 17.6 kW | Not a guaranteed capacity at every condition |
Do not compare quotations by “5 ton” alone. AHRI defines published performance at stated rating conditions because capacity, efficiency, pressure drop and power input change with operating conditions. Ask each supplier to show the same duty point.
Air-Cooled vs Water-Cooled 5 Ton Chillers
| Selection factor | Air-cooled configuration | Water-cooled configuration |
|---|---|---|
| Heat rejection | Rejects condenser heat to outdoor or plant air | Rejects heat to a condenser-water circuit |
| Site equipment | Usually avoids a cooling tower and condenser-water pump | Normally requires a suitable condenser-water source and associated water treatment |
| Installation | Useful where simplified installation and water conservation are priorities | Useful where condenser water is available and indoor placement or stable condensing conditions are important |
| Ambient sensitivity | Capacity and condensing pressure are affected by entering condenser-air temperature | Performance is affected by entering condenser-water temperature and flow |
| Maintenance focus | Keep condenser coils clean and maintain clear airflow | Control scale, corrosion and fouling in the condenser-water circuit |
The better configuration depends on the site. It cannot be determined from tonnage alone. For a direct comparison, provide the design ambient condition for an air-cooled option and the available condenser-water temperature and flow for a water-cooled option.
Rated Conditions Required for a Reliable Selection
A technically useful proposal should identify the conditions behind every capacity, input-power and COP value. Send the following data to the selection engineer:
| Required input | Why it matters |
|---|---|
| Application and process | Defines load behavior, contamination risk, control needs and operating schedule |
| Required cooling load | Separates the calculated duty from an approximate nominal tonnage |
| Entering and leaving fluid temperature | Defines the evaporator temperature range and usable duty point |
| Fluid flow rate | Connects the load to the temperature difference and affects pressure drop |
| Fluid or glycol type and concentration | Changes specific heat, viscosity, heat transfer and freeze protection |
| Maximum ambient temperature | Critical for air-cooled condenser selection and high-ambient operation |
| Condenser-water conditions | Required for a water-cooled selection |
| Available power supply | Confirms voltage, phase and frequency compatibility |
| Installation location and altitude | Affects ventilation, condenser performance and equipment arrangement |
| Destination country | Supports refrigerant, electrical and documentation review |
Packaged, Portable and Stationary Configurations
“Portable” in industrial chiller terminology normally means a packaged unit that integrates the refrigeration circuit with process-fluid circulation components. It does not mean a room air conditioner. A packaged design may be easier to connect to one machine or production cell, while a stationary system may serve a fixed process loop.
The final scope may include a process pump, reservoir, controls, bypass protection, filters, pressure instruments or remote interfaces. These items must be selected for the actual flow, pressure loss, fluid, control sequence and installation-not assumed from a generic product photograph.
Pump, Tank and Heat Exchanger Selection
Process pump
The pump must deliver the design flow after accounting for pressure loss through the chiller, process equipment, hoses, valves and elevation. More pump pressure is not automatically better; excessive pressure or flow can damage sensitive process equipment or create unstable control.
Reservoir
A reservoir adds fluid volume and can reduce rapid temperature cycling. The required volume depends on load changes, control tolerance, system volume and start-stop behavior. A buffer tank should be calculated rather than selected from tonnage alone.
Heat exchanger
Heat-exchanger construction must match the fluid chemistry, temperature, pressure and cleanliness. Inform the engineer if the process fluid is corrosive, contains particles, requires food-contact separation or operates below freezing.
How to Check the Cooling Load
For a single-phase liquid stream, the sensible cooling load can be estimated from:
Cooling load = mass flow × specific heat × temperature difference
Use the actual fluid properties at the operating temperature. Water and glycol mixtures do not have the same specific heat or viscosity. Also include process heat, pump heat, heat gain from the environment, startup pull-down requirements and a justified design margin. Avoid adding an arbitrary margin that causes excessive cycling.
For a more detailed method, see How to Correctly Size a Chiller.
Typical Industrial Applications
- Plastic molding and extrusion equipment
- Laser, spindle and machine-tool cooling
- Printing, packaging and converting lines
- Food, beverage and fermentation process loops
- Laboratory, analytical and test equipment
- Small central process-water circuits
Application names are not selection data. Two machines in the same industry can require different temperatures, flow rates, materials and control accuracy.
What Determines 5 Ton Water Chiller Price?
A responsible quotation depends on the specified duty and scope. Important cost drivers include air- or water-cooled heat rejection, design temperatures, high-ambient or low-temperature duty, fluid compatibility, pump pressure, tank volume, heat-exchanger construction, controls, electrical supply, documentation and delivery terms.
To compare suppliers fairly, request a line-item scope and a performance statement at the same rated conditions. Confirm what is included in the refrigeration package, hydraulic circuit, control panel, factory testing, packing, commissioning guidance and after-sales support.
Request a GESON Chiller Selection
GESON can evaluate a 5 ton class process chiller after receiving the operating data. The final model, actual capacity, input power, COP, refrigerant, components, dimensions, certifications and operating limits are subject to the written technical selection and order documents.
For a faster proposal, send:
- Application or machine being cooled
- Required capacity or process heat load
- Entering and leaving fluid temperatures
- Required flow and external pressure drop
- Water or glycol type and concentration
- Maximum ambient temperature or condenser-water conditions
- Voltage, phase and frequency
- Installation city and destination country
5 Ton Water Chiller FAQ
How many kW is a 5 ton water chiller?
Five refrigeration tons equal approximately 17.6 kW or 60,000 Btu/h as a nominal unit conversion. Actual delivered capacity must be stated at the selected fluid temperatures, flow, condenser condition, fluid concentration and power supply.
Should I choose an air-cooled or water-cooled 5 ton chiller?
Choose after reviewing utilities, installation location and condenser conditions. Air-cooled equipment rejects heat to air and usually simplifies the utility system. Water-cooled equipment requires a suitable condenser-water circuit but may suit sites with stable water-side heat rejection.
Can a 5 ton chiller use glycol?
Yes, when the refrigeration circuit, heat exchanger and pump are selected for the specified glycol type, concentration and operating temperature. Glycol changes heat-transfer and pressure-drop calculations, so it must be declared before selection.
What information is needed to quote a 5 ton chiller?
Provide the application, cooling load, entering and leaving fluid temperatures, flow, ambient or condenser-water conditions, fluid and glycol concentration, power supply, installation location and destination country.
Is 5 ton the guaranteed cooling capacity?
No. It is a nominal size description. A purchase specification should state net cooling capacity and power at agreed rating conditions, together with the allowed operating range.
Engineering References
- NIST Guide to the SI: heat-flow conversion factors
- AHRI 550/590 and 551/591: liquid-chiller performance rating
- Thermo Fisher Scientific: optimizing recirculating chiller selection