Logis-Tech, inc. products

Refrigerant Dehumidifiers thrive in warm, humid conditions. A refrigerant dehumidifier is basically an optimized air conditioner. The goal is no longer to cool the air but use the process to remove moisture. Air is passed across a cold evaporator coil where the lower temperature causes condensation to occur.  This water is either captured in a tank or plumbed away. The cold air is then passed across a hot condenser coil and the air becomes warmer and drier. As the incoming air becomes dryer the dew point (the point where condensation occurs) becomes lower and requires the evaporator coils to become colder. When the coil drops lower than freezing the moisture freezes to the coils, which then require defrosting.  Refrigerate dehumidifier operating range is normally 56°F - 95°F.

Desiccant dehumidifiers thrive in cooler temperatures and excel when low relative humidity and dew points are required. These units can operate in sub-freezing environments. Units have a normal operating range of -40°F to 120°F. Desiccant dehumidification requires a desiccant media, airflow and heat to reactivate (purge moisture from the desiccant). A typical setup involves a desiccant wheel or desiccant rotor that slowly spins within a sealed chassis. The wheel is segmented into two non-equal parts usually around a 75%-25% ratio. Moisture-laden air is pulled through the larger portion of the rotor where the desiccant material absorbs the moisture and the conditioned air exits warmer and dryer and is distributed as Process Air.

The MDU-150E consists of a trailer-mounted 150 standard cubic per feet per minute (SCFM) air dehydration unit (ADU) that is fully air transportable and meets all current safety and usage requirements for flight line and hangar operations or for storage applications. This MDU is designed for use on UH-60 Black Hawk and AH-64 Apache helicopters and F-16 fighter aircraft positioned on the flight line or in a hangar application and is equally well-suited for use on small private and commercial helicopters and aircraft or can be used to dehumidify storage areas up to 1,500 square feet. The MDU-150E is available in either 115VAC/1Phase/50-60Hz or 220VAC/1Phase/50-60Hz models.

The MDU-300E has an output of 300 scfm and is designed for application on helicopters or small aircraft on the flight line or in a hangar setting or storage area application. The trailer-mounted unit is fully air transportable and meets all current safety and usage requirements for flight line or hangar operations or storage area applications. This MDU is designed for use on many types of aircraft including HH-60 Pave Hawk, F-15 and F-22 fighter aircraft, C-12 as well as U.S. Coast Guard H-65, H-60, HU-25 and HU-144 aircraft. This unit is also equally well-suited for use on small to mid-size private and commercial helicopters and aircraft and for medium size storage areas up to 3,000 square feet. The MDU-300E is available in 220VAC/1Phase/50-60Hz, 230/3Phase/50-60Hz or 460VAC/3Phase/50-60Hz models.

The MDU–750PPC has an output of 750 SCFM and is designed for application on large body aircraft such as the C-130, KC-135 and C-17 on the flight line or in a hangar setting or storage area application. The MDU is fully air transportable and meets all current Military safety and usage requirements for flight line operations or for hangar use or around storage rooms. Equipped with a pre-cooler and post-cooler the MDU provides consistent, reliable moisture removal operations in severe high humidity/high-temperature environments and is applicable to multiple types of large body aircraft by a simple change out of the AIA or for storage area applications utilizing available openings into the controlled space or use of a specialized adapter.

The MDU–300PPC has an output of 300 SCFM and is designed for application for fighter aircraft on the flight line or in a hangar setting or storage room application. This MDU is applicable to multiple types of aircraft, such as F-15, F-16, F-22, and F-35, and mid-size helicopters with a simple change out of the AIA. Equipped with a pre-cooler and post-cooler the MDU provides consistent, reliable moisture removal operations in severe high humidity/high-temperature environments. This MDU is equally well-suited for use on mid-size private and commercial helicopters and aircraft or storage areas up to 3,000 square feet. The MDU-300PPC is available in 220VAC/1Phase/50-60Hz, 208 - 230/3Phase/50-60Hz, 380VAC/3Phase/50-60Hz or 460VAC/3Phase/50-60Hz models.

Our MDU Quad-150 Cart is designed specifically to give the customer the ability to dehumidify up to four (4) vehicles with a flexible parking plan or four (4) small storage containers or rooms. The Quad Cart is designed to dehumidify up to four ground vehicles, such as M-1 tanks, LAVs, etc. but also has the capability to dehumidify multiple military, private and commercial helicopters and small aircraft, shipping/storage containers and rooms via flexible hose. The Quad-150 Cart is built rugged with the capability to transverse difficult terrain and unpaved parking areas. Equipped with a 150 scfm air dehydration unit the MDU Quad Cart provides consistent, reliable moisture removal operations and can dehumidify combined storage space of up to 1,500 square feet. MDU Quad Cart is available in either 115VAC/1Phase/50-60Hz or 220/1Phase/50-60Hz models.

The Dehumidified Container System (DCS) family of products are Controlled Humidity Protection (CHP) envelopes that provides for a secure relocatable corrosion inhibiting and mold and mildew reducing environment for all types of gear and equipment. The system was built with modularity and customization in mind. The size of the container, the type of dehumidifier based on operating environment and controls are interchangeable to provide a solution for most user requirements. Each Self-contained DCS dehumidifier operates as a closed loop system, recirculating air to improve efficiency and reduce run-times. Set-points are user controlled to provide the best environment for the materials inside. Data-logging and Operating trend chart options are available. Systems may be networked for ease of operation confirmation and data retrieval. Security Alert features for reporting unauthorized breach of seal are also available.

Vehicle/Aircraft Interface Adapters (VIA/AIA) allow rapid connect/disconnect of dehumidifiers from the air craft, ground equipment or container it is designed to protect. Removal of coatings, bags and tarps can take significantly longer decreasing deployment speed and providing little protection to highly complex internal systems. Each adapter is manufactured for use on a specific piece of ground equipment or aircraft to allow maximum air flow and a positive seal. Adapters are ruggedly built and require no modification of the ground equipment or aircraft being protected. Adapters are currently available for combat vehicles and selected aircraft as listed below. Logis-Tech can also custom fabricate new adapters to meet your needs. These adapters, in conjunction with our ESS® system, allow the benefits of corrosion protection to ground equipment and aircraft in an operational environment.