INDIVIDUAL COMFORT MODULES 42BJ
Features and advantages
Comfort The 42BJ ICM LEC can be equipped with a numerical Carrier NTC controller, with each room occupant having his or her own remote user interface, on a wall or desk, to select the preferred comfort level: - Ambient room temperature - Forced ventilation function (quick air renewal in the ofﬁce) - Choice of occupied or unoccupied mode at each ICM LEC to control energy usage. Aquasmart Evolution allows all units to be controlled centrally to satisfy overriding criteria or to respond to local selections. The central energy management system continu-ously controls the comfort levels to achieve optimum energy usage without disturbing individual comfort level selections. If the product is supplied without a Carrier control device, verification of EMC conformity is the responsibility of the installer. This guarantees optimised indoor air quality in two stages, as described below: - High-efﬁciency ﬁltration with ﬁlter type F5 or F6 - Modulation of the fresh air ﬂow. In order to control the air ﬂow supplied to a room, Carrier air conditioners can be equipped with a fresh air ﬂow modulation system. Three objectives: - To adjust the ventilation rate to the actual occupation in the rooms - To maintain good indoor air quality in order to ensure comfort and hygiene for the occupants. - To control energy consumption due to the air renewal in the rooms and adjust it to avoid “overventilation” of the building, and to minimise the operating costs especially during unoccupied periods. Operating pinciples The occupants of a room release on average 0.0045 l/s (16,2 l/h) CO2. A CO2 sensor, placed in the return air duct of the terminal, checks the concentration in the air conditioned room. The measured concentration indicates the actual occupation of the room. The sensor sends a signal to the numerical Carrier controller which in turn passes an action signal to the fresh air valve: - if the CO2 concentration is below a threshold value, the fresh air ﬂow is minimal or zero, - if it is above, the fresh air ﬂow is increased up to the speciﬁed maximum. Operating limits Supply air temperature 12°C, when the unit is installed in a room with an ambient temperature of 27°C dry bulb and 65% relative humidity.
Indoor Air Quality (IAQ) Carrier is committed to developing an Indoor Air Quality (IAQ) control system that is integrated into the air conditioning units. This is a major innovation, and the beginning of a new era in air conditioning. It means that each individual comfort module (ICM) is equipped with a high-tech fresh air intake and filtration control system to effectively combat any type of pollutant.
42B J IC M1
42B JIC M2
Hot/chilled water inlet/outlet