INDIVIDUAL COMFORT MODULES
42BJ
Nominal cooling capacity 0.5-6.0 kW Nominal heating capacity 0.5-12.2 kW
AIR TREATMENT
The Carrier 42BJ Individual Comfort Module ( ICM ) is a compact air conditioning system , available in three sizes , designed to air condition individual rooms with an area of between 25 and 50 m 2 .
The 42BJ ICM LEC incorporates a galvanised sheet steel casing with a lining of thermal and acoustic insulation ( fire class M1 ).
It includes a centrifugal fan with a low-energy consumption ( LEC ) motor . This direct-drive motor is electronically commutated ( commonly referred to as EC motor ). It is piloted by a 0-10 V signal that permits operation with a wide range of rotational speeds , varying from the base setting and is precise , simple and quiet . It also includes an air filter , a fresh air inlet with adjustable air quantity , a chilled-water cooling coil and a hot-water heating coil and / or an electric resistance heater .
Flexible , thermally and acoustically insulated ducts connect ICM units to one or more plenums in the ceiling void . These feed unobtrusive linear ceiling diffusers ( Carrier Moduboot 35BD / 35SR units ) supplying the individual rooms or zones .
These units can be installed above false ceilings or in floor voids but away from occupied zones , ideally in central areas where they are easily connected to hot-water and chilled-water circuits and the fresh air supply .
These circuits , normally installed in corridors and halls to facilitate maintenance , never pass through the conditioned spaces . Only the passive elements of the system , the 35BD / 35SR diffusers are within the space they serve . This means that maintenance can be done away from the occupied areas and programming is possible while the building is occupied .
Low inherent noise was a key factor in the design of the ICM . With their high available static pressure , the units can be installed well away from the conditioned space .
670 C A R R I E R 2 0 1 6 / 2 0 1 7