VECTIOS™ PJ Compact air-air rooftop units nZoning of the air flow up to 4 different zones. nThe mounting 100% freshair with no return or extraction This option allows the management of the air flow of the unit air flow (CF assembly) will address special requests where to condition up to 4 different zones with a minimum air flow of return air flow cannot be used, in order to avoid contamination 35%(all in one operating mode: heating or cooling). (kitchens, and some other places with indoor odours or other pollutants). The air zoning includes 4 zone terminals and a control board in a separate box. The zone terminals, the servomotors of In order to keep the cooling circuit working inside operation the dampers as well as the main board of the Vectic control limits, and depending on design conditions, the unit could be are connected to this box. selected with lower air flow than minimum used for the same size in the rest of assemblies. The unit adapts the air flow and the capacity according to the needs and active zones at any time. The electronic control Depending on the heating design conditions, it is also sends the control signal to the servomotors of the dampers. necessary to select an additional electrical heating in the fresh air intake (preheater module, Group 17). Important: the dampers and servomotors are not supplied from the factory. Note: the active dehumidification is not compatible with the air zoning. Sensors (Group 19) nSensor(s) of ambient temperature. There are 3 options: • One NTC sensor connected to the control board. Note: An ambient sensor with RS485 communication is required for installation at more than 30 meters. • One to four sensors with RS485 communication. •Sensor(s) installed on the master unit of the local network (pLAN). nOne to four sensors of ambient temperature + humidity, with RS485 communication or installed on the pLAN network. This sensor is compulsory in units with enthalpic or thermoenthalpic free-cooling (optional). In this case, the outdoor air humidity sensor is also added. nLow return temperature application. This option is particularly interesting in certain applications for food conservation and it can be used in large storage T or T+RH T or T+RH T or T+RH T or T+RH facilities. sensor sensor sensor sensor With this option, the unit, operating in cooling mode, is No.1 No.2 No.3 No.4 adapted to manage an installation with low return temperature Vectic (15ºC). 24 Vac GND nSmoke detecting sensor.Smoke detecting station in accordance with the NF S 61-961 standard. nAir quality sensor to enable measuring CO. There are2 different options: •Sensor for installation in the environment. •Sensor duct-mounted (attached picture), •Sensor installed on the master unit of the local network (pLAN). •Double sensor for installation of: - both sensors in the environment; - one in the environment and one outdoor; - one in duct and one outdoor. CATALOGUE 2021 243 243 :021:021