US/Canada/Mexico/CarribeanAustralia/SE Asia/JapanSouth AmericaEurope/Middle East/AfricaChina Welcome to the Hoffman cooling selection tool. Enter the requirements of your application. The software will suggest standard cooling solutions such as air conditioners, heat exchangers, and air movers. If you need a custom solution such as custom paint option, increased air flow, or unique dimensions, please contact your sales representative. Select Units of Measurement Total Surface Area: Surface Area available for Heat Transfer: Enclosure Surfaces Not Allowing Heat Transfer Max temp outside the enclosure: Max desired temp inside the enclosure: Min anticipated temp outside the enclosure Min allowable temp inside the enclosure Heat Load Calculator Options Temperature Inside and Outside Enclosure Component Voltage and Amps Internal Heat Load in Watts Enter heat load here or use one of the heat load calculator options to the right for assistance.

Enclosure Insulation R Value R0 = 0.0inR2 = 0.5inR4 = 1.0inR6 = 1.5inR8 = 2.0inR12 = 3.0in Closed Loop/Sealed SystemFresh Air/Vented System (Open Loop) Type 12/IP54Type 12/IP55Type 3R/IP55Type 4/IP55Type 4x/IP55Type 1/IP10UL Class 1 Div 2 115 volt AC 50/60 hz230 volt AC 50/60 hz460 volt 50/60 hz24 volt DC48 volt DCOther Industrial filter fanOutdoor direct air cooling (DACS)19" data rack fan tray/blowerBare/loose air mover Type 12/IP54 filterIP55/Merv12/Z-filterDense/hydrophobic filterNo filter System Air Flow Impedance Heat ExchangerAir ConditionerVortex Cooler To help ensure proper model selection, please check the performance curves provided on the website to confirm that it provides the required cooling capacity for your application No exact matches found, please verify all settings. There is a possibility that multiple units may be required. Contact Customer Service at 1-800-896-2665 for more information. Estimate Heat Load using Temperature

Internal heat load can be deteremined by measuring the difference in temperatrues between the inside and outside of the sealed enclosure with no fans running and all components operating at full power. can a window ac unit be installed in a wallIt is imperative that no ambient air is allowed to pass through the inside of the enclosure.smallest window ac unit available Temp outside enclosure 1 meter/yard from panel:best window ac units 2012 Temp inside enclosure near top: Estimate Heat Load Using Voltage and Amps Watts of heat load can be determined using the voltage, amps and efficiency of main components in the enclosure. If efficiency is unknown, enter 0%. Estimate Heat Load using Industrial Automation Components

Watts of heat load can be determined from popular industrial automation components. enter below key components inside the cnclosure. Model assumes 97% efficiency for VFD and 95% efficiency for servo drive and transformer. Variable Frequency Drive (VFD) A Variable Frequency Drive (VFD) B Show All Tabs | Input Test Data | Ignore Features Filter Products |Getting a generator that can handle all your power generation needs is one of the most critical aspects of the purchasing decision.  Whether you are interested in prime or standby power, if your new generator can't meet your specific requirements then it simply won't be doing anyone any good because it can put undue stress on the unit and even damage some of the devices connected to it.  Unfortunately, determining exactly what size of generator to get is often very difficult and involves a number of factors and considerations. Making a choice amongst single phase, three phase, kW, KVA, welder, standby or motor starting generators can be mind-boggling.

To prevent such confusion, this article was developed to help you get a better idea of how the sizing process works and some key things to keep in mind.  This is not a substitute for a certified electrician, which we always suggest talking to before buying, but it should provide you with enough information to get a solid understanding of some of the key things that are involved. Generator Size Variations:  With the latest advancements in the field of electrical engineering, generators are now available in a wide range of sizes. Generators with power supply capacities of 5kW to 50kW are readily available in the personal and home use markets, while industrial generators are anywhere from 50kW to over 3 Megawatts.  Handy and portable gensets are available for homes, RV's and small offices, but larger businesses, data centers, buildings, plants, and industrial applications need to use the much larger sized industrial generators to meet their higher power requirements. Generator Sizing - How Much Power?:  Many people believe smaller generators can be used for standby electric power because they are not running all the time.

This is not only a myth but can actually be very detrimental. Unfortunately, generator under sizing is one of the most common mistakes committed by buyers.  Not only does it involve the risks of damaging your new asset (the generator), but it can also damage other assets connected to it, create hazardous situations, and even limit overall productivity of the unit and/or the business relying on it.  If nothing else, the key thing to remember here is that more is always better than less. How to Determine the Right Size Engine or Generator: While there is no substitute for having a certified electrician perform an inspection and calculate everything for you, the guidelines below do offer some great starting points and should at least get you started in the right direction: Know Your Requirements: Going to a dealer and buying the best or cheapest generator available without any other consideration is clearly not the best approach. It is always better to delve deep into your power generation requirements before making a choice.

You can do this in the following ways: How to Find the Starting and Running Wattage: Getting the right starting and running wattage of the devices you intend to power is crucial for calculating the accurate power requirements. Normally, you will find these in the identification plate or the owner's manual in the buyer's kit of each respective device, tool, appliance, or other electrical equipment. Ampere - Watt Conversion:  You may often find power requirements of tools stated in amperes. In order to convert the power requirement of a tool from ampere to watts, follow these calculations, or you can also use our handy conversion tool on our power calculator web page. Power Requirement Charting: It often happens that you lose the owner's manual or for some reason can't find the power requirement specification of the tools and/or other electrical devices you're running. Here is a sample power consumption chart that demonstrates some of the typical wattages used for common appliances and tools. 

The chart is simply provided as an example to demonstrate how starting and running wattages differ, and how each device has specific consumption needs.  If you have questions over any particular items you can contact the manufacturer, consult an electrician, or contact us for a free consultation. Different ways of Calculating:  Depending upon the type and number of devices, and the way the generator is scheduled to be used, there are a few different ways of calculating power requirements: Advantages of choosing the right size generator: Now that you have an idea on how to choose the appropriate size of generator to suit your needs, here's just a few of the benefits obtained by going through that process: Where to Buy & Role of Dealers and/or Service Providers:  Since you are not only purchasing a substantial company asset, but most likely an item you will need to rely on for prime or emergency electrical power at some point, probably in a crisis, deciding where to buy is also a key consideration not to be overlooked.