CASSETTE FAN COIL UNITS Drain pump
High-performance autonomous condensate drain pump encased in a special sound-insulating material for improved fast and quiet condensate removal. The main Idrofan cassette drain pan has been improved using the latest composite material for increased noise absorption, easier cleaning and coil drain water transfer to the drain pump.
All units are equipped with a control box containing the terminal blocks. The box is positioned on the outside of the unit with a fuse for unit and control protection. The control box panel can easily be opened by simply removing one fixing screw. For wiring connection details, please refer to the appropriate wiring diagrams.
Carrier controller range
The Idrofan cassette is available with the complete range of Carrier controllers. Several tests ensure easy installation. The number of available controllers offers more and enhanced features, and easy selection according to application needs.
Carrier electronic thermostat range is available for all Carrier hydronic terminals ranges: - Type A: Two-pipe application with AC motors - Type B: Four-pipe or two-pipe applications with electric heaters with AC motors - Type C: Two-pipe application with EC motors - Type D: Four-pipe or two-pipe applications with electric heaters with EC motors The thermostat for FCU with EC motors option is managing 3 configurable discrete speeds through 0-10 V signal. The thermostats have an elegant square shape with a coaxial knob to set room temperature and 3 buttons to set up fan speed, cooling or heating mode, and On/Off, as desired by the customer. Wall-mounted controls are easily and discreetly integrated in any room environment. The electronic thermostats set range is from 10 °C to 30 °C with the possibility to limit the temperature in public buildings where low energy consumption is a key requirement via a dip-switch inside the control (Cooling range 23 °C/30 °C, heating range 10 °C/21 °C).
C A R R I E R 2 0 1 6 / 2 0 1 7
Electronic thermostat A-B-C-D types
The following Features are available as setting: Auto fan: The fan speed is automatically set by the control; when the room temperature is far from the set point, high fan speed is selected. As the room temperature approaches the desired value, the fan speed decreases until the minimum speed is reached. Automatic changeover: Automatic changeover from the cooling to heating mode, based on the water temperature, ensures that the ideal room temperature is maintained. Remote changeover: Automatic changeover from cooling to heating mode, based on the remote signal from the monitoring system. Warm and cold draught protection: This feature stops the fan when the set point condition is satisfied and the water temperature is too low or too high, ensuring that air that is too cold or too warm does not cause discomfort to the room occupants. Air sensor: This is unit-mounted – if the control is wall mounted, a second air sensor located in the control can be used for fine tuning of the desired room temperature. Frost protection: This function ensures that the room temperature is kept above a minimum level. If the unit is in off mode, and the room temperature drops below 7 °C, frost protection is enabled and the unit operates in heating mode until the temperature rises above 9 °C. At this point the unit is switched off again. Booster heating management optimization (available with electric heater option): If the water temperature is below 30 °C the system will work in the heat demand mode and the electric heater will be the only available heating source. If the water temperature is above 35 °C the system will work in the booster heating mode, energising the water valve and electric heater together. The booster heating function will be deactivated if the water temperature is above 45 °C (the electric heater will be de-energised). Energy saving: This feature allows saving energy when the room is unoccupied, without the need to switch off the unit. When the energy-saving but