nVent Hoffman Enclosure Heat Exchangers
Air-to-air heat exchangers deliver convection cooling to heat producing electrical equipment using a closed loop cooling system. The closed loop design cools and recirculates the air inside an electrical enclosure, while isolating electrical components from environments that may contain contaminants.
The air-to-air heat exchangers utilize copper heat pipes surrounded by extruded fins. The fins increase the surface area allowing faster heat absorption and dissipation. The copper pipes contain a phase changing liquid that absorbs heat from the heated enclosure where it is then converted to vapor. The heated vapor automatically moves to the cooler end of the heat pipe, which is exposed to the cooler ambient air outside the enclosure.
The excess heat is expelled out and the vapor is changed back into liquid, which then moves back towards the warmer end of the heat pipe. The heating and cooling process repeats continuously. Air-to-water heat exchangers use the same principle of temperature differential, but they alter the internal air temperature by forcing air across water coils.
More Information about nVent Hoffman Enclosure Heat Exchangers
nVent Hoffman ClimaGuard Air-to-Air Outdoor Heat Exchangers utilize closed-loop cooling while sealing out dirt, dust, corrosive elements and wind-driven rain. They feature a double-crimped and dip-sealed core, allowing efficient thermal transfer while ensuring maximum protection against leaks. The units can be surface or recess mounted to an enclosure and provide a tight seal against air and water infiltration.
nVent Hoffman ClimaGuard Air-to-Air Indoor Heat Exchangers utilize closed-loop cooling while sealing out dirt, dust, corrosive elements and wash down water. They allow efficient thermal transfer while ensuring maximum protection against leaks. The units can be surface or recess mounted to an enclosure and provide a tight seal against air and water infiltration.
nVent Hoffman ClimaGuard Air-to-Water Indoor Heat Exchangers remove heat from an enclosure by flowing enclosure hot air across a water-cooled exchanger core. Ambient operating temperatures can range from 50 to 158 degrees F while inside enclosure temperatures can range from 50 to 122 degrees F. These units require an available cooled water source. They include a condensation recovery system and a condensation discharge pipe.
Industrial Enclosure Accessories and Modifications
Lighting kits
Lighting kits are often used in outdoor applications. There are many different styles of lighting kits that can be used, but LEDs have become the preferred lighting solution in the past several years.
Pressure switches
Pressure switches operate on a spring and react to the cabinet door opening and closing. They can be used for lights, intrusions alarms and exhaust fans.
Passive Air Vents
Passive air vents allow natural air circulation to flow through a cabinet providing proper ventilation.
Enclosure Fans
Enclosure air fans are used when more ventilation is required. The size of the fan will depend on the size of the enclosure as well as the amount of air that needs to be circulated.
Air Conditioners
Air conditioners are used when ambient air circulation is inadequate to cool the cabinet. The air conditioner size will depend on the enclosure size, ambient air temperature and heat generated within the cabinet.
Heaters
Heaters are used when a cabinet is located in areas that may be exposed to cold temperatures.
Locking Mechanisms
Locking mechanisms are used to secure cabinets.
Conduit Hole Seals
Conduit hole seals are used on cabinets that have holes that need to be plugged after conduit has been removed.