Low operating pressures for Part L compliance in refurbishment of systems

Barcol-Air manufacture the most comprehensive range of CAV products in the market place today.

Generally cav units and vav units operate with the same controls except when mechanical type units are requested.

Replacing older manual damper controlled fresh air systems with these fully automated cav units /vav units reduces building CO2 emissions greatly.

Constant air volume systems are consistently used on medium to large projects to supply regulated fresh-air requirements to each zone/floor as well as extracting 'used' air from the building. Constant volume units are used particularly on Fan Coil projects to deliver specific fan coils and zones with 'guaranteed' fresh air volumes. These can also be re-set via the BMS in order to accommodate change in fresh air requirements. All units are pressure independent and can be placed anywhere in the system and used with any BMS.They can also be re-set via the bms to any volume within their range if fresh air requirements/cooling duties change.

Constant Volume Units: Types NS, NA, NB, NK The units can be manufactured to all ductwork sizes, circular inlet/rectangular outlet, circular in/out, large rectangular units for over 1m3/s volumes. All can be complete with attenuators for all noise conditions. Pls see the VAV catalogue on the variable air volume page above which shows all possible types of CAV units available. Barcol-air Dual Duct cav/ vav units These units are available to replace previous installations of the popular hot and cold duct systems with up to date low pressure BMS integrated electric cav/vav controls.Generally seen in hospitals and office buildings.

Constant air volume terminal units data sheets

Dual duct cav vav terminal units data sheets

VAV_CAV_circ_mechanical_NR

VAV_CAV_circular_units_NA_NB

VAV_CAV_NS

VAV_CAV_rect_units_NK_NL

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