LARGE HEAT-RECOVERY UNITS for air volumes between 1,5–10 m³/s
Kesair’s large heat-recovery units are designed for an air-flow range of 1,5–10 m³/s. The units are equipped with a cross-flow heat exchanger, rotary heat exchanger or with glycol-circulation heat recovery.Our AHU’s are designed for commercial premises, like schools, day-care centres, offices, and industrial buildings where the air exhange places more challenges and requires larger output than in a private accommodation does.
Kesair’s factory-tested heat-recovery units are prefabricated with electrification and automation. Inbuilt birect-drive frequency-converter-controlled fans are easy to adjust and energy-efficiant. The units can be adapted and customised in accordance to customer needs, and delivered in several parts. A wide range of different acessories make it possible for us to meet your specific air-handling demands.
STANDARD DELIVERY CONTENT
Sheet-metal – mineral wool – sheet-metal construction, where 50 mm thick mineral wool works as heat insulation. Beam base and adjustable pedestals makes the unit sturdy and easy to install into place.
Tight fresh-air and exhaust-air dampers
Air filters for supply (EU7) and exhaust (EU5) air and a set of spare filters.
Direct-drive chamber fans. As preference we use EC motors, but for larger units AC- or PM -motors. Crequency converter is included, unless otherwise designated.
Heat recovery can be obtained with three different solutions: Heat-exchanger plate (including bypass dampers), rotary heat exchanger (including drive), or glycol-circulation heat recovery.
Water- or glycol-circulation heater or electric panel heater.
Cooling radiator based on water or glycol circulation or on direct evaporation.
Illuminated fan inspection glass.
Automatics with Ouman, Schneider, Siemens or Fidelix regulator
Connection regulators for remote monitoring (DDC).
Mixing shunt group and water-circulation pump
Smoke and gas monitoring
CO2/CO/VOC sensor for air-quality monitoring
Installation of customer-supplied components and wiring to terminal block