The most powerful models in the KwiKool line, the 120,000 BTU portable air conditioners cool industrial spaces up to 4,000 square feet. They're commonly used in industrial plants, server rooms, hospitals, and offices. Designed to be vented through a drop ceiling, they offer efficient 3-stage motors, direct drive fans, and an internal condensate pump for continuous use. There are 2 electrical/power options for these 10-ton portable air conditioners. Both use 3-phase motors that efficiently maintain high cooling power for industrial spaces. Make sure your space can handle these 3-phase motors. The other electrical requirements are as follows: A direct drive fan forces air directly out and into your space with efficient power:Evaporator Airflow: 3800 CFMCondenser Airflow: 5000 CFM These portable ACs can be run continuously for 24-hour use. An included internal pump lifts water up and out of your space and to a nearby drain up to 150 feet away. Operation will cut off if there's a problem with this while you use it.

An alarm will also sound to notify you. If you only need for temporary operation, use its large external tank. This tank holds up to 5 gallons of water. When the tank is full, an alarm will sound and operation will cut off. Don't worry about using these durable portable ACs for long periods of time, because they are packed with safety features to avoid overheating and other issues. An internal fan is used to cool down the motor to avoid overheating. High pressure switch turns off the unit if its ambient temperatures reach higher than it can handle (110 degrees F) or if the condenser ducting is longer than the recommended length. Low pressure switch protects the compressor from low-pressure damage in case the condenser air pressure drops below the recommended level. If there's a block in airflow from the ducts, an alarm will also sound and the unit will shut down. These industrial portable air conditioners are built for long-lasting use: Hammercoat finish and galvanized cabinet protect the exterior

Insulated motor for efficient operationhvac units on sale Hinged filter panel is built to stand the test of time and make accessing the filter a breezeair conditioning units for heavy equipment Digital Thermostat and Controlsmuch does hvac service cost Set your ideal room temperature Choose between cool and fan-only modes Choose to display the temperature in C or F Auto-Restart: If you were to lose power, it will turn back on to the previously programmed settings once power is restored. Safety Certifications: These 10-ton portable air conditioners are ETL-, CSA-, and UL-listed for efficient and safe operation. Large Operating Temperature Range: You can use it in rugged conditions from 60-110 degrees F.

Adjustable Air Vent: Adjust this to tilt air the direction you want. Add the Air Chute Kit: If you want even more control over where cool air enters, add the KDC-120 Air Chute Kit. It comes with 2 adjustable air chutes to direct air exactly where you need it. If you're looking for the most powerful KwiKool model we offer, these are efficient, powerful, and durable options for any large industrial cooling need. Powerful Commercial Cooling: This is one of the most powerful cooling systems available and is perfect for large server rooms and other commercial or industrial locations. Two Operation Options: Choose between continuous or short-term operation thanks to an included condensate pump and external tank. Electrical Requirements: There are 3 electrical options for this model, so be sure to pick the one your area is wired for. Professional Installation: Models with this much power, especially the 3-phase models, can be confusing to install. An HVAC professional is recommended for installation.

The ceiling vent kit is required for proper installation. Manufacturer's Literature • KwiKool 120,000 BTU Portable AC Owner's Manual • KwiKool KIB12023 Spec Sheet • KwiKool KIB12043 Spec Sheet KwiKool 120,000 BTU Portable AC Find Day & Night® products sold and installed in Wilmington, DE ?Mini-Split Heat Pumps are Quirky and Still Effective The name "mini-splits" generally refers to heat pump systems with one outdoor unit and one or several smaller capacity air handlers. The efficiency of their operation comes via the inverter compressor and variable refrigerant flow technology, and they are available for single- and multi-family homes, as well as commercial buildings of any size. Here's a general overview of what the systems are and how they work, in case you're not familiar. Compared to conventional heating and cooling equipment, they're very quiet and very efficient. For most folks, ductless mini-splits are what they've heard of, but there is also a concealed ducted option that many of our clients choose to avoid the "wall wart".

Over the past several years, I have  pretty well, and like the 2001 Land Rover Discovery II that we drove for 10 years, with it's backwards dashboard and odd noises, mini-splits can be rather quirky. Unlike the Discovery II, though, most of the quirkiness of the mini-splits is good, not just quirky! At this year's Building Science Summer Camp, Bruce Harley, Technical Director at Conservation Services Group, discussed his experience and the quirkiness of the combination ducted and ductless multi-split heat pump system installed in his Vermont home. Below are some of the key takeaways from his presentation with a little commentary from me: IMAGE LEFT - Mitsubishi ducted mini- or multi-split heat pump air handler in encapsulated atticIMAGE RIGHT - Mitsubishi 4-ton multi-split outdoor unit The Quirkiness of Heat Pumps",(Click title to see entire presentation): IMAGE LEFT - Mitsubishi outdoor unit mounted on exterior wall of Providence, R.I. homeIMAGE RIGHT - (Left to Right) Gordie (happy homeowner), Ray Bolvin (installer), and Me

IMAGE LEFT - Mitsubishi ceiling suspended ducted air handler.IMAGE RIGHT - Mitsubishi outdoor unit with access panel removed during commissioning July 2013 Electricity bill with set backs July 2014 Electricity bill when we set it and forgot it IMAGE: Mitsubishi Electric MHK-1 Controller is one of the more user-friendly controllers IMAGE: Slide from Bruce Harley's presentation showing comparison between resistance heat and mini-split heat pump energy consumption. Quirkiness of Mini-Split (VRF) Heat Pump Capacity On the topic of the HSPF (Heating Seasonal Performance Factor, a.k.a. heating efficiency) of VRF heat pump systems, Bruce Harley said, "Be careful about what manufacturers specs you use" and "Adjust for climate using bin analysis for actual equipment and application". This is extremely important! Especially when it comes to equipment capacity. In fact, knowing the rated versus actual capacity of the outdoor unit (heat pump) and the individual air handlers is one of, if not the most critical design considerations with VRF heat pump system.

Capacities are considered "Rated" if their published via testing performed by a third-party and approved by the Air Conditioning, Heating and Refrigeration Institute, or AHRI. AHRI regulates all 3rd-party testing for all types equipment based on standard rating conditions at full capacity. As mentioned above, mini-split heat pump systems can have a single or multiple indoor units (as many as sixty four (64) ducted or ductless air handlers) connected to a single outdoor unit (heat pump), depending on building or home size, desired zoning, required heating and cooling, etc. Although equipment efficiency is better and costs can be slightly less to have one outdoor unit serving each indoor unit, it may be more practical to have a single outdoor unit with multiple indoor units connected. The more indoor units there are, the more it makes sense to use a single outdoor unit. Whatever the configuration, the actual capacity of each indoor and outdoor piece of equipment will vary.

What factors change the actual capacity? DESIGN CONDITIONS (Factors that effect system capacity) Below is a screen shot of the actual capacities based on design conditions (see "Factors" above), generated with a proprietary design software from , one of the leading manufacturers of VRF (mini-split) equipment. For simplicity, I'm only showing the first four indoor units, but there are 10 total. The project is a custom home on a small island near Great Exuma, Bahamas. Yes, it's hot and humid. Maybe one day of the year it drops below 80...to 79.9. We decided to go with the  line from Mitsubishi, a commercial product that requires three-phase power, for this project, but everything I'm about to show applies to all VRF equipment. It doesn't matter if it's residential-type, commercial-type, any other manufacturer, or if the project is in Anchorage or Timbuktu. In this configuration, I selected a 10-ton (120,000 btu/h) outdoor unit to serve all but the guest house.

The model number and actual capacities at design conditions (see "Factors" above) for the outdoor unit are in the top left corner of this screen shot. (blue = total cooling, red = total heating). All of the indoor fan coils (air handlers) are concealed ducted, and their model numbers are directly above each image (to the right) of the air handler (starting with PEFY). The two numbers after the dash represent the nominal capacity (24 = 24,000 btu/h, or 2-ton), and to the right are actual capacities based on manufacturer testing at the design conditions. If I move the house to Fargo, North Dakota, with design temperatures at 71 degrees F in Summer and -23 degrees F in Winter, here's what happens to the capacities. The AHRI certificate below shows the rated capacities of the outdoor unit is 114,000 btu/h cooling and 129,000 heating at their standard rating conditions which is different that design conditions most of the time. If you look back to the first screen shot, the actual capacity is higher for heating and lower for cooling.

That has a lot to do with the design temperatures of rated vs. actual. It is normal to have actual capacities differ from rated capacities with all types of equipment, conventional or mini-split, but now let's see what happens when I change some of the other design conditions, like number of air handlers, line-set length and number of 90 degree bends in the lines. In the screen shot above, I've added two more 8,000 btu/h air handlers to the Bahama configuration, still using a single outdoor unit. The outdoor unit (OU) capacity has increased by about 6,000 btu/h and the indoor unit (IU) capacities have decreased by as much as 1,500 btu/h. The reason the OU capacity goes up is that I did not have 100% connected capacity (nominal capacity of indoor units = nominal capacity of outdoor unit) in the original configuration. So, when there is less than 100% connected to VRF equipment, the capacity of the OU will match the total of the indoor units. As for the indoor units, the more units that are connected to the OU, the more the capacity of the indoor unit decreases.

How much it decreases also depends on the size of each added unit. This is fairly logical, since they all have to share the same OU, but it's critical to know so there's enough capacity to match the load of each zone. The above screen shot shows what happens when I changed all the line-set lengths from the original configuration (10 air handlers) to fifty (50) feet from some of them being over 130 feet, and changing all of them to have only one bend. See how much the outdoor unit capacity goes up? From 99 kbtu/h to 110 kbtu/h. So, the closer the air handlers are and the fewer bends, the more capacity the system will have. You see, it's not just temperature that effects capacity. You can also compare the actual capacities of the indoor units with their rated capacities in manufacturers published performance data. Here is an example of the PEFY-P24NMAU-E3, the first indoor unit (air handler) shown in the configurations above. It also states the rated conditions. See the difference, and see why it would be important to know the capacity?