External air is drawn into the CBRN section of the AC160 and passes through two levels of particulate filtration, followed by an activated charcoal anti-vapour stage. The filtered air is then conveyed into the air conditioning section of the AC160. Peacetime filters can also be provided for cost effective training purposes and to preserve war stocks of CBRN filters.
Air cooling is provided by means of a vapour cycle refrigeration system, which incorporates a full bypass feature allowing the compressor to continue running when the unit switches out of cooling mode, thus eliminating repeated compressor starting surges. An integral, two-speed evaporator fan allows lower noise operation at moderate load conditions. Air heating is generated by means of electrical heating elements. Temperature control is achieved via a two-stage thermostat for cooling and heating modes.
This system has been designed for external mounting against an aperture in the shelter wall. It is specifically designed to interface with ceiling-mounted discharge ducting to ensure effective air distribution throughout the shelter.
The AC160 Combined Shelter CBRN and Air Conditioning System is ruggedly constructed to meet a wide range of climatic conditions in the most demanding environments. It is fully qualified for transportation by military cross-country vehicles and suitable for air transportation.